2024-03-29T12:30:58Zhttps://laur.lau.edu.lb:8443/oai/requestoai:laur.lau.edu.lb:10725/20912021-03-19T09:59:47Zcom_10725_2053col_10725_2071
Exploring students' strategies to solve ordinary differential equations in a reformed setting.
Habre, Samer
The undergraduate curriculum in ordinary differential equations (ODEs) has undergone some important changes in favor of the visual and numerical aspects of the course. However, research findings of the effects of this reform on student thinking are still minimal. This article examines whether students consider slope (or direction) fields as a means for solving first-order ODEs and studies students' success in reading information from these fields. It also investigates students' abilities converting symbolic information into graphical ones and vice-versa. The setting is a third-semester college calculus course where the visual approach was highly emphasized; also, computers were an integral part of the instruction process.
2015-09-04
2015-09-04
2000
2016-05-09
Article
0732-3123
http://hdl.handle.net/10725/2091
http://dx.doi.org/10.1016/S0732-3123(00)00024-9
Habre, S. (2000). Exploring students' strategies to solve ordinary differential equations in a reformed setting. The Journal of Mathematical Behavior, 18(4), 455-472.
http://www.sciencedirect.com/science/article/pii/S0732312300000249
en
The journal of Mathematical Behavior
oai:laur.lau.edu.lb:10725/20922021-03-19T09:59:47Zcom_10725_2053col_10725_2071
Students’ conceptual understanding of a function and its derivative in an experimental calculus course
Habre, Samer
Abboud, May
Calculus has been witnessing fundamental changes in its curriculum, with an increased emphasis on visualization. This mode for representing mathematical concepts is gaining more strength due to the advances in computer technology and the development of dynamical mathematical software. This paper focuses on the understanding of the function and its derivative as viewed by students of a reformed Calculus 1 course offered in two experimental sections at the Lebanese American University in Beirut, Lebanon. Results have shown that the general approach adopted in the course proved to be unpopular for a great majority of the students, but rewarding for others. Interviews conducted with some students and a study of their performance on very specific exam questions reveal that for most students, the algebraic representation of a function still dominated their thinking; however, these students showed an almost complete understanding of the derivative, particularly the idea of the instantaneous rate of change and/or the slope of a curve at a given point. Furthermore, very few of these students referred to the mechanical methods for finding derivatives
2015-09-04
2015-09-04
2005
2016-05-13
Article
0732-3123
http://hdl.handle.net/10725/2092
http://dx.doi.org/doi:10.1016/j.jmathb.2005.11.004
Habre, S., & Abboud, M. (2006). Students’ conceptual understanding of a function and its derivative in an experimental calculus course. The Journal of Mathematical Behavior, 25(1), 57-72.
http://www.sciencedirect.com/science/article/pii/S073231230500057X
en
The Journal of Mathematical Behavior
oai:laur.lau.edu.lb:10725/21112018-11-26T12:04:26Zcom_10725_2053col_10725_2071
Visualization Enhanced by Technology in the Learning of Multivariable Calculus
Habre, Samer
Compiles observations from a multivariable calculus class in which computers were used extensively. Results show that visualization skills can be improved and that students use technology in very innovative ways. (Author/MM
2015-09-07
2015-09-07
2001
2015-09-07
Article
1362-7368
http://hdl.handle.net/10725/2111
Habre, S. (2001). Visualization enhanced by technology in the learning of multivariable calculus. The International Journal for Technology in Mathematics Education, 8(2), 115.
en
International Journal of Computer Algebra in Mathematics Education
oai:laur.lau.edu.lb:10725/21132020-05-22T15:49:40Zcom_10725_2053col_10725_2071
Investigating students' approval of a geometrical approach to differential equations and their solutions
Habre, Samer
The advancement of computer graphics in the past decade has contributed to an enormous change in the way mathematics is taught at the college level. Although Calculus has been the main benefactor of this advancement, the topic of ordinary differential equations has undergone fundamental changes in its curriculum in favour of the visual and numerical aspects of the course. This paper investigates students' acceptance of solving a differential equation geometrically. The setting is an introductory course on ordinary differential equations offered to engineering students, in which a reformed approach was adopted. Data were gathered from exams, and interviews were conducted with six students who volunteered to take part in the study. Results show that students initially showed reluctance to accept this geometric approach, but many of them eventually accepted it, appreciated its usefulness, and wished that other math courses be offered in a similar way.
2015-09-07
2015-09-07
2003
2015-09-07
Article
0020-739X
http://hdl.handle.net/10725/2113
https://doi.org/10.1080/0020739031000148912
Habre, S. (2003). Investigating students' approval of a geometrical approach to differential equations and their solutions. International Journal of Mathematical Education in Science and Technology, 34(5), 651-662.
http://www.tandfonline.com/doi/abs/10.1080/0020739031000148912#.V6GTDLh97cs
International Journal of Mathematical Education in Science and Technology
oai:laur.lau.edu.lb:10725/21122023-10-02T13:16:32Zcom_10725_2053col_10725_2071
Mitigating the resource curse for extractive industry: the Case of Lebanon
Salamey, Imad
The discovery of gas and oil in the Eastern Mediterranean Basin awaits serious resolutions to the political challenges confronting the process of exploration and extraction. On one hand, the lack of maritime boundary delimitation, with the potential discovery of shared deposits, and the absence of mediation channels may exacerbate regional volatility. On the other hand, deficiency in the managing capacities of extractive resources, which coincides with deep political divisions and absent local consensus regarding the national distribution of revenues and benefits, represents ...
2015-09-07
2015-09-07
2013
2015-09-07
Article
1875-418X
http://hdl.handle.net/10725/2112
Salamey, I. (2013). Mitigating the resource curse for extractive industry: The case of Lebanon. Oil, Gas & Energy Law, 11(3).
https://www.ogel.org/article.asp?key=3365
en
Oil, Gas, and Energy Law
oai:laur.lau.edu.lb:10725/21142016-08-10T05:51:31Zcom_10725_2053col_10725_2071
Prospective Mathematics Teachers’ Views on the Role of Technology in Mathematics
Habre, Samer
Grundmeier, Todd A.
It is important for future teachers of mathematics to distinguish between technology
as course content to be taught and technology as a teaching tool. This exploratory
study examines prospective teachers’ views of the role of technology in mathematics
education before, during, and after their experience in a mathematics class that
focused on technology in mathematics education. In particular, the researchers
explore participants’ views of mathematical content technology may aid in the
teaching of and their views of the teacher’s role in a class were technology is utilized.
2015-09-07
2015-09-07
2007
2015-09-07
Article
2165-7874
http://hdl.handle.net/10725/2114
Habre, S., & Grundmeier, T. A. (2007). Prospective Mathematics Teachers' Views on the Role of Technology in Mathematics Education. Issues in the Undergraduate Mathematics Preparation of School Teachers, 3.
http://eric.ed.gov/?id=EJ835509
en
IUMPST: The Journal
oai:laur.lau.edu.lb:10725/21162023-09-28T13:03:30Zcom_10725_2053col_10725_2071
Democratic transition and sectarian populism: the case of Lebanon
Salamey, Imad
Tabar, Paul
Despite being considered as one of the oldest constitutional democracies in the Middle East, Lebanon has been confronted with periodical institutional crises and civil violence. A protracted transitional period towards democracy has threatened the autonomy of deeply fragmented sectarian groups, and has instigated a polarizing struggle over nationhood. Fearing the degradation of their power to a majoritarian order, sectarian leaders have resorted to various mobilization strategies to obstruct the emergence of a unifying national identity and democratic state. Consequently, a chronically weak state has emerged, divided along antagonistic sectarian loyalties with power shared according to sectarian consociationalism. In order to reveal the tenets of sectarian populism in Lebanon and their impacts on nation-building, the state and democratic transition, a nationwide opinion survey was conducted by the Lebanese American University (LAU), Beirut, during January of 2011 with a random sample of 586 Lebanese respondents divided along sectarian affiliation. The survey examined differential populist mobilization among major sectarian groups and revealed potential explanatory variables. The results shed light on the formation of populism in a divided society and the challenges it poses for democratic transitions in Lebanon and perhaps in transitional Middle Eastern states.
2015-09-07
2015-09-07
2015-09-07
Article
1755-0912
http://hdl.handle.net/10725/2116
http://dx.doi.org/10.1080/17550912.2012.714575
Salamey, I., & Tabar, P. (2012). Democratic transition and sectarian populism: the case of Lebanon. Contemporary Arab Affairs, 5(4), 497-512.
http://www.tandfonline.com/doi/abs/10.1080/17550912.2012.714575
en
Contemporary Arab Affairs
oai:laur.lau.edu.lb:10725/21272020-05-22T16:06:10Zcom_10725_2053col_10725_2071
The convergence of an Euler approximation of an initial value problem is not always obvious
Habre, Samer S.
Hubbard, John H.
West, Beverly H.
2015-09-11
2015-09-11
2001-04
2015-09-11
Article
0002-9890
http://hdl.handle.net/10725/2127
https://doi.org/10.1080/00029890.2001.11919756
Hubbard, J. H., Habre, S. S., & West, B. H. (2001). The convergence of an Euler approximation of an initial value problem is not always obvious. American Mathematical Monthly, 108 (4), 326-335.
http://www.jstor.org/stable/2695239?seq=1#page_scan_tab_contents
en
The American Mathematical Monthly
oai:laur.lau.edu.lb:10725/21282020-05-22T16:18:21Zcom_10725_2053col_10725_2071
Multiple Representations and the Understanding of Taylor Polynomials
Habre, Samer
The study of Maclaurin and Taylor polynomials entails the comprehension of various new mathematical ideas. Those polynomials are initially discussed at the college level in a calculus class and then again in a course on numerical methods. This article investigates the understanding of these polynomials by students taking a numerical methods class at the Lebanese American University in Beirut. The class adopted a closed laboratory format where Mathematica was used extensively. Results show that the added graphical dimension due to the use of the software does not necessarily contribute to a further understanding of the topics under examination. In fact, each subject of the study exhibited a unique mode of understanding: For one, it was purely graphical, for another analytical/numerical, and for the third all three modes complemented each other.
2015-09-11
2015-09-11
2009
2015-09-11
Article
1051-1970
http://hdl.handle.net/10725/2128
https://doi.org/10.1080/10511970701668209
Habre, S. (2009). Multiple representations and the understanding of Taylor polynomials. PRIMUS, 19(5), 417-432.
http://www.tandfonline.com/doi/abs/10.1080/10511970701668209
en
PRIMUS
oai:laur.lau.edu.lb:10725/21292016-08-09T11:14:27Zcom_10725_2053col_10725_2071
The Fredholm alternative for second-order linear elliptic systems with VMO coefficients
Habre, Samer S.
2015-09-11
2015-09-11
1996
2015-09-11
Article
0362-1588
http://hdl.handle.net/10725/2129
Habre, S. S. (1996). The Fredholm alternative for second-order linear elliptic systems with VMO coefficients. Houston J. Math, 22, 417-433.
http://citeseerx.ist.psu.edu/viewdoc/download;jsessionid=668A640C689F3873F694EC0886EC0F3F?doi=10.1.1.641.2969&rep=rep1&type=pdf
en
Houston J. Math
oai:laur.lau.edu.lb:10725/21322021-03-19T09:59:47Zcom_10725_2053col_10725_2071
Homotopic classification of Euler-Lagrange systems
Habre, Samer
In this paper we examine the linear elliptic partial differential operators that appear
as Euler–Lagrange systems of certain variational integrals. We give a sufficient condition for
those systems to be deformable to the Laplace system.
2015-09-14
2015-09-14
2002
2016-05-12
Article
0899-6180
http://hdl.handle.net/10725/2132
oai:laur.lau.edu.lb:10725/21332021-03-19T09:59:47Zcom_10725_2053col_10725_2071
Improving understanding in ordinary differential equations through writing in a dynamical environment
Habre, Samer
Research on writing in mathematics has shown that students learn more effectively in an environment that promotes this skill and that writing is most beneficial when it is directed at the learning aspect. Writing, however, necessitates proficiency on the part of the students that may not have been developed at earlier learning stages. Research has indicated though that the burden placed on teachers and learners to master this skill is compensated by the mathematical learning in such an environment. Techniques to successfully integrate writing in the mathematics classroom can be varied. This study is conducted on students in an introductory differential equations class in which a reformed approach is adopted be it in the topics discussed, the textbook used, the technology employed or the assignments/exams given. More precisely, the article explores the effect of writing on improving student understanding of particular topics in differential equations and investigates the development of the students’ writing skills.
2015-09-14
2015-09-14
2012
2016-05-13
Article
0268-3679
http://hdl.handle.net/10725/2133
http://dx.doi.org/10.1093/teamat/hrs007
Habre, S. (2012). Improving understanding in ordinary differential equations through writing in a dynamical environment. Teaching Mathematics and its Applications, 31(3), 153-166.
http://teamat.oxfordjournals.org/content/31/3/153.short
en
Teaching Mathematics and its Applications
oai:laur.lau.edu.lb:10725/21342021-03-19T09:59:47Zcom_10725_2053col_10725_2071
Borderline behavior for 2 x 2 iterative systems
Habre, Samer S.
McDill, Jean-Marie
The study of 2 × 2 linear iterative systems leads naturally to
an analysis of the eigenvalues and eigenvectors of the corresponding system
matrix. The phase portraits for such systems have been previously examined
and outlined; however the outline lacks the analysis of the many borderline
cases in the trace-determinant plane. In this paper we fill in some of these
details and look at the general solutions for the most interesting cases in terms
of eigenvectors. In particular, we find generalized eigenvectors when required.
2015-09-14
2015-09-14
2008
2016-05-16
Article
1311-8080
http://hdl.handle.net/10725/2134
Habre, S. S., & McDill, J. M. BORDERLINE BEHAVIOR FOR 2 χ 2 ITERATIVE SYSTEMS.
http://www.ijpam.eu/contents/2008-42-4/20/20.pdf
International Journal of Pure and Applied Mathematics
oai:laur.lau.edu.lb:10725/21352021-03-19T09:59:47Zcom_10725_2053col_10725_2071
A complete classification of 2 x 2 linear iterative systems
Habre, Samer S.
McDill, Jean-Marie
The study of 2 x 2 linear iterative systems is incorporated in many books on ordinary differential equations. As in the case of linear systems of differential equations, the classification of the equilibrium solution (0; 0) leads to an analysis of the eigenvalues and eigenvectors of the system matrix. However the authors do not know of any textbook that investigates the phase portraits for the many borderline cases in the trace-determinant Plane. The purpose of this paper is to fill in these details. In addition, a recent software developed by Hubert Hohn of Massachusetts College of Art for the purpose of this investigation is used for pictorial illustrations of these portraits.
2015-09-14
2015-09-14
2008-02-01
2016-04-11
Article
1933-2823
http://hdl.handle.net/10725/2135
Habre, S., & McDill, J. M. (2008). A complete classification of 2 x 2 linear iterative systems. Electronic Journal of Mathematics and Technology, 2(1).
http://go.galegroup.com/ps/i.do?id=GALE%7CA178451799&sid=googleScholar&v=2.1&it=r&linkaccess=fulltext&issn=19332823&p=AONE&sw=w&authCount=1&u=lau&selfRedirect=true
en
Electronic Journal of Mathematics and Technology
oai:laur.lau.edu.lb:10725/21362021-03-19T09:59:47Zcom_10725_2053col_10725_2071
Geometric Conjectures in a Dynamic Geometry Software Environment
Habre, Samer
The use of technology is now widespread at the school as well as college levels. Instructors, however, continuously debate the usefulness of hardware/software in enhancing the learners' knowledge and their understanding of mathematical concepts. This research explores whether technology can contribute to a better student understanding of geometrical concepts and theories. In particular, we explore whether a learning environment that uses Dynamic Geometry Software (DGS) can help students determine the truthfulness of certain geometrical conjectures or whether such an environment can mislead students. Results show that the continuous variations of a geometric figure may sometimes be misleading and that a strategy guiding the investigation process and exploiting the potential of the new technologies are in many cases necessary to properly investigate a given geometrical problem. Results also show that the role of the teacher is, in many cases, critical for the development of the solution strategy.
2015-09-14
2015-09-14
2009
2017-07-27
Article
0730 - 8639
http://hdl.handle.net/10725/2136
Habre, S. (2009). Geometric conjectures in a dynamic geometry software environment. Mathematics and computer education, 43(2), 151-164.
http://search.proquest.com/docview/235821743?pq-origsite=gscholar
en
Journal Mathematics and Computer Education
oai:laur.lau.edu.lb:10725/21392023-09-28T13:43:51Zcom_10725_2053col_10725_2071
The Many Colors of the Arab Spring
Salamey, Imad
2015-09-14
2015-09-14
2012
2017-08-10
Article
1045-3466
http://hdl.handle.net/10725/2139
Salamey, Imad (2012). “The Many Colors of the Arab Spring”. Columbia Journal of International Affairs.
https://jia.sipa.columbia.edu/news/many-colors-arab-spring
en
Columbia Journal of International Affair
oai:laur.lau.edu.lb:10725/21372021-03-19T09:59:47Zcom_10725_2053col_10725_2071
Central finite volume schemes on nonuniform grids and applications
Touma, R.
Habre, S.
Zeidan, D.
We propose a new one-dimensional unstaggered central scheme on nonuniform grids for the numerical solution of homogeneous hyperbolic systems of conservation laws with applications in two-phase flows and in hydrodynamics with and without gravitational effect. The numerical base scheme is a generalization of the original Lax–Friedrichs scheme and an extension of the Nessyahu and Tadmor central scheme to the case of nonuniform irregular grids. The main feature that characterizes the proposed scheme is its simplicity and versatility. In fact, the developed scheme evolves a piecewise linear numerical solution defined at the cell centers of a nonuniform grid, and avoids the resolution of the Riemann problems arising at the cell interfaces, thanks to a layer of staggered cells used intermediately. Spurious oscillations are avoided using a slopes limiting procedure. The developed scheme is then validated and used to solve classical problems arising in gas–solid two phase flow problems. The proposed scheme is then extended to the case of non-homogenous hyperbolic systems with a source term, in particular to the case of Euler equations with a gravitational source term. The obtained numerical results are in perfect agreement with corresponding ones appearing in the recent literature, thus confirming the efficiency and potential of the proposed method to handle both homogeneous and non-homogeneous hyperbolic systems.
2015-09-14
2015-09-14
2015-07
2017-04-07
Article
0096-3003
http://hdl.handle.net/10725/2137
http://dx.doi.org/10.1016/j.amc.2015.03.129
Touma, R., Zeidan, D., & Habre, S. (2015). Central finite volume schemes on nonuniform grids and applications. Applied Mathematics and Computation, 262, 15-30.
http://www.sciencedirect.com/science/article/pii/S0096300315004488
en
Applied Mathematics and Computation
oai:laur.lau.edu.lb:10725/21382021-03-19T09:59:47Zcom_10725_2053col_10725_2071
Spin Representations with Negative Indices
Habre, Samer S.
Al-Tahan, Madline
Abdulrahim, Mohammad N.
We consider the spin representation of Artin’s braid group, which has a negative
index of one and was originally given by D. D. Long and explicitly computed by J.P.Tian.
In our work, we find sufficient conditions under which the complex specialization of that
representation, namely α : Bn → GLn
2 (C), is unitary relative to a nonsingular hermitian
matrix
2015-09-14
2015-09-14
2014-12
2017-04-26
Article
0049-29-30
http://hdl.handle.net/10725/2138
http://dx.doi.org/10.5556/j.tkjm.45.2014.1457
Al-Tahan, M., Abdulrahim, M. N., & Habre, S. S. (2014). Spin representations with negative indices. Tamkang Journal of Mathematics, 45(4), 367-374.
http://journals.math.tku.edu.tw/index.php/TKJM/article/view/1457
en
Tamkang journal of mathematics
oai:laur.lau.edu.lb:10725/21402021-03-19T09:59:47Zcom_10725_2053col_10725_2071
Multi-Parameter Bureau Representations
Habre, Samer S.
We consider the multi-parameter representation of Artin’s braid group introduced
by D. D. Long and J. P. Tian, namely α : Bn → GLm(C), where m = n!n . First, we
show that there exists a complex specialization of the multi-parameter representation
that does not arise from any Hecke algebra. Second, we find conditions under which the
images of the generators of the braid group on three strings under the multi-parameter
representation are unitary relative to a nonsingular hermitian matrix.
2015-09-14
2015-09-14
2013
2017-05-23
Article
0049-2930
http://hdl.handle.net/10725/2140
http://dx.doi.org/10.5556/j.tkjm.44.2013.1081
Abdulrahim, M., Tahan, M., & Habre, S. (2013). Multi-parameter Burau representations. Tamkang Journal Of Mathematics, 44(1), 91-98.
http://journals.math.tku.edu.tw/index.php/TKJM/article/view/1081
en
Tamkang journal of mathematics
oai:laur.lau.edu.lb:10725/21412023-09-28T13:58:19Zcom_10725_2053col_10725_2071
The Collapse of Middle Eastern Authoritarianism: breaking the barriers of fear and power
Salamey, Imad
Pearson, Frederic S.
This article analyses Middle Eastern authoritarianism and the contemporary political transformations which have swept the region. It suggests that, given the uneven spread of reform and the selectiveness of international intervention, the prioritisation of Middle Eastern stability over democratic transformation, combined with local authoritarian regimes' ability to use excessive force against their own populations and insurgents, are responsible for the persistence of the Middle East's post-cold war authoritarianism. The recent uprisings and reform movements can be explained from the perspective of historical grievance, based on social inequality and ethnic, sectarian, tribal or sectional disparities, as well as by advancements in communications technology and economic globalisation that have undermined long-standing national authoritarianism in favour of Middle Eastern civil rights and civil society movements. A global democratic consciousness has played a decisive role in providing ideological cohesiveness and (uneven) global political support to safeguard the collective action of the new civil rights movements. Recognising that democracy itself may have characteristic regional forms with greater and lesser tinges of recurrent authoritarianism, Middle Eastern democratic transformation hinges on the ability of these burgeoning movements to achieve a civic state and overcome authoritarian counter-resistance and international suspicion and fear.
2015-09-14
2015-09-14
2012
2017-04-11
Article
0143-6597
http://hdl.handle.net/10725/2141
http://dx.doi.org/10.1080/01436597.2012.674702
Salamey, I., & Pearson, F. S. (2012). The Collapse of Middle Eastern Authoritarianism: breaking the barriers of fear and power. Third World Quarterly, 33(5), 931-948.
https://www.tandfonline.com/doi/full/10.1080/01436597.2012.674702
en
Third World Quarterly
oai:laur.lau.edu.lb:10725/21422021-03-19T09:59:47Zcom_10725_2053col_10725_2071
Enhancing Mathematical through Visualization
Habre, Samer
Mathematics
Study and Teaching
Data Processing
String art dates back to the 19th century when it was initially invented to ease the delivery of some mathematical ideas. Since then, the art has evolved and so has its use in mathematics. In this chapter, the authors see how some of the phase portraits for 2 x 2 linear homogeneous iterative systems exhibit some artistic behavior that resembles this form of art. The investigation gives a sufficient condition for the solutions of such systems to form closed cycles. However, in other situations the cycles formed are infinite, producing some fascinating examples of string art.
2015-09-14
2015-09-14
2013
2017-10-12
Book
9781466640504
http://hdl.handle.net/10725/2142
http://dx.doi.org/10.4018/978-1-4666-4050-4.ch01
Habre, S. (2013). String Art and Linear Iterative Systems. In S. Habre (Ed.), Enhancing Mathematics Understanding through Visualization: The Role of Dynamical Software (pp. 212-221). Hershey, PA: Information Science Reference.
en
Information Science Reference
oai:laur.lau.edu.lb:10725/21432016-08-09T11:04:57Zcom_10725_2053col_10725_2071
Enhancing Mathematics Understanding through Visualization
Habre, Samer
Mathematics -- Study and teaching -- Audio-visual aids
Mathematics -- Study and teaching -- Data processing
Understanding mathematical concepts is many-folded. Traditional mathematics mostly emphasizes the algebraic/analytical aspect of a problem with minimal reference to its graphical aspect and/or numerical one. In a modern learning environment, however, multiple representations of concepts are proving to be essential for the teaching of mathematics. The availability of user-friendly dynamical software programs has paved the way for a radical yet smooth way for changing the way mathematical concepts are perceived. This chapter presents some of the author’s attempts for employing innovative methods in teaching topics in calculus, in differential and difference equations. The focus is on the use of dynamical programs that boost the visual component of the topics being investigated, hence contributing to a more complete understanding of these topics.
2015-09-14
2015-09-14
2013
2015-09-14
Book
9781466640504
http://hdl.handle.net/10725/2143
http://dx.doi.org/doi:10.4018/978-1-4666-4050-4.ch004
Habre, S. (2013). Dynamical Mathematical Software: Tools for Learning and for Research. In S. Habre (Ed.), Enhancing Mathematics Understanding through Visualization: The Role of Dynamical Software (pp. 70-88). Hershey, PA: Information Science Reference. doi:10.4018/978-1-4666-4050-4.ch004
http://www.igi-global.com/chapter/dynamical-mathematical-software/80258
en
Information Science Reference
oai:laur.lau.edu.lb:10725/21462021-03-19T09:59:47Zcom_10725_2053col_10725_2071
Visualization Enhanced by Technology in the Learning of Multivariable Calculus
Habre, Samer
Visualization is the process of using geometrical illustrations of mathematical concepts. Over the past centuries, a decline in the geometric element in mathematical instruction has been observed. Computers have given mathematics the opportunity to adjust the balance between the various modes that constitute the basis of mathematical education: the symbolic, the visual, and the numeric. Visualization in multivariable calculus cannot be overemphasized. This paper is the outcome of observations compiled from a multivariable calculus class where computers were used extensively. Results show that visualization skills can be improved and that students use technology in very innovative ways.
2015-09-14
2015-09-14
2001
2017-10-12
Article
1362-7368
http://hdl.handle.net/10725/2146
Habre, S. (2001). Visualization enhanced by technology in the learning of multivariable calculus. The International Journal for Technology in Mathematics Education, 8(2), 115.
http://search.proquest.com/docview/203438978?pq-origsite=gscholar
en
International Journal of Computer Algebra in Mathematics Education
oai:laur.lau.edu.lb:10725/21472023-09-28T13:22:07Zcom_10725_2053col_10725_2071
US-French collaboration on Lebanon: how Syria’s role in Lebanon and the Middle East contributed to a US-French Convergence
Baroudi, Sami E.
Salamey, Imad
This article considers US-French collaboration on Lebanon, especially between 2004 and 2008. It examines the political background to such collaboration and its manifestations at the United Nations Security Council and in the two powers' relations with Lebanon, Syria, and other regional players. We argue that the changed political landscape in the Middle East following the 2003 US invasion of Iraq (particularly Syrian policy in Lebanon and towards Iraq) as well as developments in the Lebanese theater since the turn of the 21st century prompted such collaboration. After briefly discussing the insights of Realist and Liberal Internationalist theories of international relations, the article concludes that Daniel Deudney's Republican Security Theory offers the most plausible explanation for US-French collaboration on Lebanon.
2015-09-15
2015-09-15
2011
2018-05-18
Article
0026-3141
http://hdl.handle.net/10725/2147
https://doi.org/10.3751/65.3.13
Baroudi, S. E., & Salamey, I. (2011). US-French Collaboration on Lebanon: How Syria's Role in Lebanon and the Middle East Contributed to a US-French Convergence. The Middle East Journal, 65(3), 398-425.
http://www.ingentaconnect.com/content/mei/mei/2011/00000065/00000003/art00004
en
The Middle East Journal
oai:laur.lau.edu.lb:10725/21482021-03-19T10:50:26Zcom_10725_2053com_10725_2054col_10725_2071col_10725_2081
GCD Matrices Defined on GCD-Closed Sets in Principal Ideal Domains
Habre, S. S.
El-Kassar, A. N.
Awad, Y. A.
Let S = {x1, x2, ..., xn} be a set of n distinct positive integers. The matrix [S] = (sij) having the greatest common divisor (xi, xj) of xi and xj as its i, j-entry is called the greatest common divisor (GCD) matrix on S. Beslin and Ligh obtained a structure theorem for GCD matrices and generalized Smith’s
determinant to factor-closed sets and gcd-closed sets. In a previous paper, we extended many of the results concerning the GCD matrices defined on factorclosed sets to principal ideal domains such as the domain of Gaussian integers
and the rings of polynomials over the finite field. In this paper, we extend these results to GCD matrices defined on gcd-closed sets in a principal ideal domain.
2015-09-15
2015-09-15
2010
2015-09-15
Article
1311-1728
http://hdl.handle.net/10725/2148
https://doi.org/10.3844/jmssp.2009.342.347
Habre, S. S., Awad, Y. A., El-Kassar, A. N. (2010). GCD Matrices Defined on GCD-Closed Sets in Principal Ideal Domains. International Journal of Applied Mathematics, 23(4), 571-581.
https://www.researchgate.net/publication/267672926_GCD_matrices_defined_on_GCD-closed_sets_in_a_PID
en
International Journal of Applied Mathematics
oai:laur.lau.edu.lb:10725/21602023-09-28T13:20:46Zcom_10725_2053col_10725_2071
Shia revival and Welayat Al-Faqih in the Making of Iranian foreign policy
Salamey, Imad
Othman, Zanoubia
The repercussions of the 1979 Iranian Revolution are too often attributed to the idea that the state's policy-making was based on a Khomeinist-charged ideology that sought to expand political Islam throughout the Middle East. Alternative interpretations of Iranian foreign policy have emphasized policymakers' pragmatic, as opposed to ideological, considerations of state preservation. This article examines these contested propositions regarding the motivations shaping Iranian foreign policy. It assesses three interrelated foreign policy drivers that have been particularly salient in framing the Iranian positions vis-à-vis the various changes in both the regional and international arenas: Shiism, Welayat Al-Faqih, and domestic policy struggles. Analysis of Iranian foreign policy reveals that it is constructed on Iran's various regional rapprochements that take into strong consideration domestic politics. The findings suggest that Iran's foreign policy – be it the country's nuclear program, its animosity towards Israel and the US, or its support of diverse proxy groups in the Middle East – cannot be rationalized solely on assumptions of the state's self-preservation. Alternatively, this paper concludes that Iranian foreign policy is strongly shaped by Shia revival and Welayat Al-Faqih ideological discourses.
2015-09-18
2015-09-18
2011
2016-05-13
Article
2156-7689
http://hdl.handle.net/10725/2160
http://dx.doi.org/10.1080/21567689.2011.591983
Salamey, I., & Othman, Z. (2011). Shia Revival and Welayat Al-Faqih in the Making of Iranian Foreign Policy. Politics, religion & ideology, 12(2), 197-212.
https://www.tandfonline.com/doi/full/10.1080/21567689.2011.591983
en
Politics, Religion & Ideology
oai:laur.lau.edu.lb:10725/21572016-08-30T09:02:45Zcom_10725_2053col_10725_2071
Metaphor as argument
Badran, Dany
One of the most intriguing questions in both stylistic and rhetorical analyses relates to determining textual effect on readers, aesthetic or otherwise. Whether the power of the text is directly associated with the role of the text producer and his or her intentions, the linguistic, paralinguistic, extralinguistic and situational context of the text, the background and socio-cognitive expectations of the reader, or a combination of some or all of these factors (or other factors) is a question that is still the subject of stylistic and rhetorical analysis today. This article is a further step in this direction. It attempts to investigate one dimension of textual effect, namely uniformity in reader reaction to an argumentative poem entitled Dinner with the Cannibal, by focusing on the roles that genre and metaphor play in ideologically positioning readers. It argues, on the one hand, that literature is the dominant genre in this hybrid literary-argumentative poem, channelling the readers’ initial interpretations almost exclusively in the interest of more traditional literary interpretative approaches. On the other hand, and more importantly, it focuses on the role that metaphor, as a cognitive link between text producer and reader, plays in the construction of an extremely controlled, uniform interpretation of the argumentative dimension to the poem. The overall effect of the way genre and metaphor function in this argumentative poem, it is concluded, is highly ideological.
2015-09-18
2015-09-18
2012-05
2015-09-18
Article
0963-9470
http://hdl.handle.net/10725/2157
https://dx.doi.org/10.1177/0963947011435858
Badran, D. (2012). Metaphor as argument: A stylistic genre-based approach. Language and Literature, 21(2), 119-135.
http://lal.sagepub.com/content/21/2/119.short
en
Language and Literature
oai:laur.lau.edu.lb:10725/21582016-08-30T09:01:45Zcom_10725_2053col_10725_2071
Hybrid genres and the cognitive positioning of audiences in the political discourse of Hizbollah
Badran, Dany
This paper aims at providing a better understanding of the workings of political rhetoric in the discourse of Hizbollah by examining relatively underexplored socio-cognitive dimensions in production and reception of political speeches. It argues for the centrality of the macro-linguistic textual notion of hybrid genres to the understanding of the socio-cultural makeup of speaker–audience relations and dynamics. The adequateness and uniqueness of the Lebanese, and by extension, the Middle-Eastern context are more clearly evident in the overwhelming dominance of dogmatic discourses which, I argue, both trigger and aid the perpetual construction and reconstruction of ideologically susceptible audiences. Elements of these discourses such as religious, political, military and even literary blend in a unique way in public, normally political, speeches to produce a type of hybrid genre which helps construct constantly shifting audience roles with varying effective power. A pragmatic–stylistic analysis of the discourse of conflict, I propose, can help provide a starting point for understanding the complexity of the rhetorical situation in the region especially in the context of continuously rising extremism.
2015-09-18
2015-09-18
2010
2015-09-18
Article
1740-5904
http://hdl.handle.net/10725/2158
http://dx.doi.org/10.1080/17405904.2010.491222
Badran, D. (2010). Hybrid genres and the cognitive positioning of audiences in the political discourse of Hizbollah. Critical Discourse Studies, 7(3), 191-201.
http://www.tandfonline.com/doi/abs/10.1080/17405904.2010.491222
en
Critical Discourse Studies
oai:laur.lau.edu.lb:10725/21592016-08-30T09:01:18Zcom_10725_2053col_10725_2071
Democracy and rhetoric in the Arab world
Badran, Dany
This article attempts to empirically test the relationship between the type of rhetoric dominant in the Arab world and the notion of democracy. It takes as case studies three sets of editorials written directly in the aftermath of the toppling of Egyptian president Hosni Mubarak on February 11, 2011: one from the politically controlled and autocratic Republic of Syria; another from the more open, cosmopolitan, and arguably more democratic Republic of Lebanon; and the third from the United States, as an example of the most functional democracy of the three. By analyzing and categorizing the argumentative strategies adopted in these three sets of editorials into (1) presentation, (2) through-argumentation, and (3) counterargumentation, this article seeks to uncover how possible differences in the rhetorical approaches of these editorials can reflect the level of democratic practices of societies and/or governing systems in different countries. Ultimately, I test and scrutinize the hypothesis that potential differences in rhetorical strategies correspond with the level of cultural exposure and democratic tendencies that exist in Syria and Lebanon, especially in the context of current political changes taking place in the Arab world.
2015-09-18
2015-09-18
2015-09-18
Article
2152-0844
http://hdl.handle.net/10725/2159
https://dx.doi.org/10.1080/21520844.2013.772685
Badran, D. (2013). Democracy and Rhetoric in the Arab World. The Journal of the Middle East and Africa, 4(1), 65-86.
http://www.tandfonline.com/doi/abs/10.1080/21520844.2013.772685
en
The Journal of the Middle East and Africa
oai:laur.lau.edu.lb:10725/21622016-08-30T09:03:20Zcom_10725_2053col_10725_2071
Modality and Ideology in Translated Political Texts
Badran, Dany
2015-09-18
2015-09-18
2015-09-18
Article
1473-8287
http://hdl.handle.net/10725/2162
Badran, D. (2001). Modality and ideology in translated political texts. Nottingham Linguistic Circular, 16, 47-61.
en
Nottingham Linguistic Circular
oai:laur.lau.edu.lb:10725/21632023-09-28T13:14:29Zcom_10725_2053col_10725_2071
How exceptional are Islamists? comparing supports for Hezbollah and the Lebanese Forces
Salamey, Imad
Copeland, Gary
2015-09-18
2015-09-18
2011
2015-09-18
Article
1944-8953
http://hdl.handle.net/10725/2163
http://dx.doi.org/10.1080/19448953.2011.578859
Salamey, I., & Copeland, G. (2011). How exceptional are Islamists? Comparing support for Hezbollah and the Lebanese Forces. Journal of Balkan and Near Eastern Studies, 13(2), 157-175.
https://www.tandfonline.com/doi/full/10.1080/19448953.2011.578859
en
Journal of Balkan and Near Eastern Studies
oai:laur.lau.edu.lb:10725/21642023-09-28T13:05:18Zcom_10725_2053col_10725_2071
Failing Consociationalism in Lebanon and Integrative Options
Salamey, Imad
This article examines political sectarianism as institutionalized in the consociational power sharing arrangements of Lebanon. The proposition advanced in this article challenges the common belief that the sectarian model of corporate consociationalism is adequate for plural societies undergoing democratic transition. It demonstrates that
demographic, spatial, and regional power shifts render corporate sectarian power sharing consociationalism conducive to conflict and national fragmentation. As an alternative, it proposes ‗integrative consociationalism‘ as a more responsive governing option that accommodates national and community-based political power sharing arrangements. National electoral strategies as well as administrative reforms are also suggested within the context of integrative consociationslism.
2015-09-18
2015-09-18
2009
2015-09-18
Article
1085-7494
http://hdl.handle.net/10725/2164
Salamey, I. (2009). Failing consociationalism in Lebanon and integrative options. International Journal of Peace Studies, 14(2), 83-105.
http://www.jstor.org/stable/41852994?seq=1#page_scan_tab_contents
en
International Journal of Peace Studies
oai:laur.lau.edu.lb:10725/21652023-09-28T13:17:56Zcom_10725_2053col_10725_2071
Parliamentary consociationalism in Lebanon: equal citizenry vs. quotated confessionalism
Salamey, Imad
Payne, Rhys
This article sheds light on the governance dilemma in a deeply divided post-conflict Lebanese sectarian society undergoing democratic transition. It assesses consociational democracy as a working model institutionalised by Lebanon in light of the country's composition of multiple religious minorities. In particular, it focuses on the political forces shaping the current Lebanese National Assembly (parliament) within the confessional structure and analyses the prospect and impasses confronting the development of a stable and representative assembly. Analysis of the Lebanese parliament is made in light of five assessment areas identified as fundamental for the emergence of a stable democratic institution: political will and domestic support, representation, lawmaking, oversight, and management and infrastructure. After revealing the deep-rooted deficiency of quota-based confessional representation, the article provides institutional transitional reform recommendations that could increase the likelihood for the legislature to better fulfil the critical functions of representation, oversight, and lawmaking vital for democratic transition. The realisation of consociational democracy in Lebanon, the article argues, would require the eventual adoption of proportional representation as a means of moving the country from a 'confessionally quotated' to 'equal citizenry' based representation.
2015-09-18
2015-09-18
2008
2015-09-18
Article
1357-2334
http://hdl.handle.net/10725/2165
http://dx.doi.org/10.1080/13572330802442857
Salamey, I., & Payne, R. (2008). Parliamentary Consociationalism in Lebanon: Equal Citizenry vs. Quotated Confessionalism. Journal of Legislative Studies, 14(4), 451-473.
https://www.tandfonline.com/doi/full/10.1080/13572330802442857
en
Journal of Legislative Studies
oai:laur.lau.edu.lb:10725/21712023-09-28T12:52:23Zcom_10725_2053col_10725_2071
Consociational Democracy and Urban Sustainability: Transforming the Confessional Divides in Beirut
Salamey, Imad
Tabar, Paul
Is ‘consociational democracy’ a sustainable working model for deeply divided societies? Despite its relative success in Lebanon, rapid urbanization has presented serious challenges to the rigid confessional power-sharing arrangement. In the city of Beirut, confessionalism, which is closely associated with urbanization, has led to the polarization, rather than the moderation, of sectarian divides. The results of an opinion survey conducted by the Lebanese American University during 2006–2007 in Beirut and its suburbs demonstrate that political polarization is driven fundamentally by a continual shift in the confessional balance of power. Urban tension has intensified owing to the fluidity of migration and displacement patterns while confronted by a rigid confessional power-sharing arrangement. Confessionally based consociational democracy has been failing to accommodate communities’ self-preservation as well as integration. This article suggests that consociational democracy needs to accommodate secular as well as confessional proportional representation and thus serve as a conflict transformation model. The implementation of a transitional electoral law that synthesizes confessional and secular representations in the Greater Metropolitan Beirut district is proposed as an institutional illustration for moderating rigid confessionalism and helping transform urban relations towards sustainability.
2015-09-21
2015-09-21
2008
2016-05-06
Article
1744-9057
http://hdl.handle.net/10725/2171
http://dx.doi.org/10.1080/17449050802243350
Salamey, I., & Tabar, P. (2008). Consociational democracy and urban sustainability: Transforming the confessional divides in Beirut. Ethnopolitics, 7(2-3), 239-263.
https://www.tandfonline.com/doi/full/10.1080/17449050802243350
en
Ethnopolitics
oai:laur.lau.edu.lb:10725/21722023-09-28T13:06:17Zcom_10725_2053col_10725_2071
Hezbollah: A Proletarian Party with an Islamic Manifesto – A Sociopolitical Analysis of Islamist Populism in Lebanon and the Middle East
Salamey, Imad
Pearson, Frederic
This article examines the rising contention between a global foreign policy promoting liberal democracy in the Middle East and Islamist rejectionism. It provides a sociopolitical analysis of the phenomena of radical Islamist politics while focusing on the experience of Hezbollah in Lebanon. It associates the growth of Hezbollah, a political movement seen in various forms in several countries, with social class dynamics that have been antagonised by social inequality, opportunistic leadership, the importation of Western-ordered democracy and by perceived foreign intervention. By examining the root dynamic of Hezbollah in Lebanon, this article argues that poverty has provided the fertile ground for the growth of Islamic populism as a revolutionary movement and has represented a major reason for the rejection of democratisation and political reform. A global foreign policy that seeks to uproot extremism in favour of state-building and the advancement of democracy in the Middle East needs to be reoriented so as to help undermine class inequality and to strengthen government-sponsored public services programmes for the underclass.
2015-09-21
2015-09-21
2007
2016-05-06
Article
0959-2318
http://hdl.handle.net/10725/2172
http://dx.doi.org/10.1080/09592310701674358
Salamey, I., & Pearson, F. (2007). Hezbollah: a proletarian party with an Islamic manifesto–a sociopolitical analysis of Islamist populism in Lebanon and the Middle East. Small Wars & Insurgencies, 18(3), 416-438.
https://www.tandfonline.com/doi/full/10.1080/09592310701674358
en
Small Wars and Insurgencies
oai:laur.lau.edu.lb:10725/21742023-09-28T12:52:54Zcom_10725_2053col_10725_2071
The crisis of federalism and electoral strategies in Iraq
Salamey, Imad
Pearson, Frederic
After uprooting Saddam Hussein from power, establishing democracy in Iraq has been declared among the most important objectives of the U.S.-led Coalition. However, the Coalition has encountered complex ethnic and religious relations and resentment of foreign intervention in Iraq. These reactions reflect decades, even centuries, of divisive and antagonistic policies whose impacts continue to complicate and threaten coexistence and civil peace. The immediate challenge of achieving stability and peace in Iraq, therefore, rests in the ability to foster a genuinely indigenous institutional political structure that can accommodate the different ethnic and sectarian aspirations. This article highlights the major potential shortcomings of the federal model established by the “Law of Administration for the State of Iraq for The Transitional Period.” It also examines the shortcomings of the List Proportional Representation system as presented by the United Nations for Iraq's transition, and alternatively proposes national electoral reform strategies, with the implementation of an Alternative Vote system with Minority Provision in the election to the National Assembly, as a means to strengthen Iraq's national unity.
2015-09-21
2015-09-21
2005
2016-05-06
Article
1528-3585
http://hdl.handle.net/10725/2174
http://dx.doi.org/10.1111/j.1528-3577.2005.00202.x
Salamey, I., & Pearson, F. (2005). The crisis of federalism and electoral strategies in Iraq. International Studies Perspectives, 6(2), 190-207.
https://academic.oup.com/isp/article/6/2/190/1834991
en
International Studies Perspectives
oai:laur.lau.edu.lb:10725/21752019-09-19T13:56:37Zcom_10725_2053col_10725_2071
Friction Reduction in Elastohydrodynamic Contacts by Thin Layer Thermal Insulation
Björling, M.
Habchi, W.
Bair, S.
Larsson, L.
Marklund, P.
Reducing friction is of utmost importance to improve efficiency and lifetime of many products used in our daily lives. Thin hard coatings like diamond-like carbon (DLC) have been shown to reduce friction in full-film-lubricated contacts. In this work, it is shown that contrarily to common belief, the friction reduction stems mainly from a thermal phenomenon and not only a chemical/surface interaction one. It is shown that a few micrometer-thin DLC coating can significantly influence the thermal behavior in a lubricated mechanical system. The presented simulations, validated by experiments, show that applying a thin DLC coating to metal surfaces creates an insulating effect that due to the increased liquid lubricant film temperature at the center of the contact, locally reduces lubricant viscosity and thus friction. The results of the investigation show that the addition of thin insulating layers could lead to substantial performance increases in many applications. On a component level, the contact friction coefficient in some common machine components like gears, rolling element bearings, and cam followers can potentially be reduced by more than 40 %. This will most likely open up the way to new families of coatings with a focus on thermal properties that may be both cheaper and more suitable in certain applications than DLC coatings.
2015-09-21
2015-09-21
2014
2015-09-21
Article
1023-8883
http://hdl.handle.net/10725/2175
https://dx.doi.org/10.1007/s11249-013-0286-8
Björling, M., Habchi, W., Bair, S., Larsson, R., & Marklund, P. (2014). Friction reduction in elastohydrodynamic contacts by thin-layer thermal insulation. Tribology Letters, 53(2), 477-486.
http://link.springer.com/article/10.1007/s11249-013-0286-8
en
Tribology Letters
oai:laur.lau.edu.lb:10725/21912023-10-04T05:50:57Zcom_10725_2053col_10725_2071
Toward a U.S. Exit Strategy from Iraq and a Transition to Full Sovereignty
Salamey, Imad
Pearson, Frederic
More than a year and a half has passed since the U.S.-led coalition’s invasion of Iraq, and yet little progress has been seen in the daily lives of Iraqi people. Not only has reconstruction stalled, but human rights abuses by U.S. soldiers at the Abu-Ghraib prison and the crackdown on political opposition groups have undermined Washington’s efforts to emerge as a champion of democratic and human rights in Iraq.
2015-09-28
2015-09-28
2005
2015-09-28
Article
http://hdl.handle.net/10725/2191
Salamey, I., & Pearson, F. (2005). Toward a US Exit Strategy from Iraq and a Transition to Full Sovereignty.
https://fpif.org/toward_a_us_exit_strategy_from_iraq_and_a_transition_to_full_sovereignty/
en
Foreign Policy in Focus
oai:laur.lau.edu.lb:10725/22112020-06-22T11:04:11Zcom_10725_2058com_10725_2053col_10725_2073col_10725_2071
Characterisation of Pga1, a putative Candida albicans cell wall protein necessary for proper adhesion and biofilm formation
Malouf, Katia
Dimassi, Hani I.
Khalaf, Roy A.
Hashash, Rami
Younes, Samer
Bahnan, Wael
El-Koussa, Joseph
The fungal pathogen Candida albicans is a leading causative agent of death in immunocompromised individuals. Many factors have been implicated in virulence including filamentation-inducing transcription factors, adhesins, lipases and proteases. Many of these factors are glycosylphosphatidylinositol-anchored cell surface antigenic determinant proteins. Pga1 is one such protein shown to be upregulated during cell wall regeneration. The purpose of this study was to characterise the role Pga1 plays by creating a homozygous pga1 null strain and comparing the phenotype with the parental strain. It was observed that the mutant strain showed less oxidative stress tolerance and an increased susceptibility to calcofluor white, a cell surface disrupting agent that inhibits chitin fibre assembly which translated as a 40% decrease in cell wall chitin content. Furthermore, the mutant exhibited a 50% reduction in adhesion and a 33% reduction in biofilm formation compared with the parental strain, which was reflected as a slight reduction in virulence. Our data suggest that Pga1 plays an important role in cell wall rigidity and stability. It was also observed that the pga1 null was over filamentous on both liquid and solid media and exhibited increased resistance to SDS suggesting upregulation of filamentation-inducing genes and cell surface components to partially compensate for the deletion.
2015-09-30
2015-09-30
2015-09-30
Article
1439-0507
http://hdl.handle.net/10725/2211
http://dx.doi.org/10.1111/j.1439-0507.2010.01883.x
Hashash, R., Younes, S., Bahnan, W., El Koussa, J., Maalouf, K., Dimassi, H. I., & Khalaf, R. A. (2011). Characterisation of Pga1, a putative Candida albicans cell wall protein necessary for proper adhesion and biofilm formation. Mycoses, 54(6), 491-500.
http://onlinelibrary.wiley.com/doi/10.1111/j.1439-0507.2010.01883.x/full
en
Mycoses
oai:laur.lau.edu.lb:10725/22172020-06-22T11:00:44Zcom_10725_2058com_10725_2053col_10725_2073col_10725_2071
The Candida albicans Hwp2 is necessary for proper adhesion, biofilm formation and oxidative stress tolerance
Dimassi, Hani I.
Khalaf, Roy A.
Younes, Samer
Bahnan, Wael
Candida albicans is an important fungal pathogen of humans that is responsible for the majority of mucosal and systemic candidiasis. The host–pathogen interaction in C. albicans has been the subject of intense investigation as it is the primary step that leads to establishment of infection. Hwp2 is a cell wall GPI-anchored cell wall protein that was previously shown to be necessary for hyphal and invasive growth on solid media. The purpose of the current study is to further characterize the protein as far as its role in oxidative stress, sensitivity to cell wall disrupting agents, adhesion to human epithelial and endothelial cells, biofilm formation and chitin content. It appears that Hwp2 is necessary for proper oxidative stress tolerance, adhesion and biofilm formation as an hwp2 null is more susceptible to increasing doses of hydrogen peroxide, unable to adhere efficiently to epithelial and endothelial cell lines and unable to form wild type biofilm levels.
2015-09-30
2015-09-30
2011
2015-09-30
Article
0944-5013
http://hdl.handle.net/10725/2217
http://dx.doi.org/10.1016/j.micres.2010.08.004
Younes, S., Bahnan, W., Dimassi, H. I., & Khalaf, R. A. (2011). The Candida albicans Hwp2 is necessary for proper adhesion, biofilm formation and oxidative stress tolerance. Microbiological research, 166(5), 430-436.
http://www.sciencedirect.com/science/article/pii/S0944501310000789
en
Microbiological research
oai:laur.lau.edu.lb:10725/22952021-03-19T09:59:47Zcom_10725_2053col_10725_2071
Sheikh Yusuf Qaradawi on International Relations
Baroudi, Sami E.
This paper examines the perspectives on international relations of a leading Islamist scholar, Sheikh Yusuf al-Qaradawi. The discussion of Qaradawi's views is organized around seven themes that feature prominently in his international relations discourse. The paper argues that Qaradawi's views are central to how Islamists conceptualize international relations; and that they intersect with the views of secular Arab nationalists, Third World and Western critics of the prevailing international order, as well as neoclassical and righteous realists. Finally, the paper sheds light on the centrality of the sacred text (the Qur’an) to the international relations discourse of Islamists, such as Qaradawi.
2015-10-21
2015-10-21
2014
2016-02-02
Article
0026-3206
http://hdl.handle.net/10725/2295
http://dx.doi.org/10.1080/00263206.2013.849693
Baroudi, S. E. (2014). Sheikh Yusuf Qaradawi on International Relations: The Discourse of a Leading Islamist Scholar (1926–). Middle Eastern Studies, 50(1), 2-26.
en
Middle Eastern Studies
oai:laur.lau.edu.lb:10725/22962020-06-22T10:45:20Zcom_10725_2053col_10725_2071
Islamist Perspectives on International Relations
Baroudi, Sami E.
The academic literature on political Islam has paid scant attention to how contemporary Islamists conceptualize international relations. By examining the writings on international relations of one leading Islamist thinker - the recently deceased Sayyid Muhammad Hussein Fadlallah - this article attempts to deepen our understanding of this key aspect of contemporary Islamist thought. The article highlights Fadlallah's views on a range of theoretical and substantive issues which are at the core of international relations in the post-Cold War era. These issues revolve around: the underlying principles of international relations; the nature of the current (post-Cold War) international order and the role of the United States therein; the relationship between the United States (and the West, in general) and the Arab and Islamic worlds; Israel and the Palestinian question; and the prospects for Islamic unity and the form that it can take in the modern era. It also relates Fadlallah's discourse on international relations to that of other Islamists, secular Arab nationalists, and other critics of the prevailing international order, as well as to the writings of Christian realists and in particular Reinhold Niebuhr.
2015-10-22
2015-10-22
2013-01-14
2015-10-22
Article
0026-3206
http://hdl.handle.net/10725/2296
http://dx.doi.org/10.1080/00263206.2012.743887
Baroudi, S. E. (2013). Islamist Perspectives on International Relations: The Discourse of Sayyid Muhammad Hussein Fadlallah (1935–2010). Middle Eastern Studies, 49(1), 107-133.
http://www.tandfonline.com/doi/abs/10.1080/00263206.2012.743887
en
Middle Eastern Studies
oai:laur.lau.edu.lb:10725/22992021-03-19T09:59:48Zcom_10725_2053col_10725_2071
Arab Intellectuals and the Bush Administration's Campaign for Democracy
Baroudi, Sami E.
This article considers how Arab intellectuals represent the United States and
American foreign policy in their editorial contributions to Arabic newspapers.
As a case study, it examines Arab intellectuals' reactions to the George W Bush
Administration's campaign to effect democratic change in the Middle East, as
articulated in the Administration's 2004 Greater Middle East Initiative (hereafter
GMEl or Initiative). I argue that the predominantly hostile reactions to the GMEI
stemmed mainly from a closed and negative image of the United States permeating
Arab intellectual circles. This negative image is the product of the history of
American policy towards the region and, equally important, of the beliefs, values,
and formative experiences of Arab intellectuals. The article concludes by addressing
ways to ameliorate this image
2015-10-22
2015-10-22
2007
2016-03-07
Article
0026-3141
http://hdl.handle.net/10725/2299
Baroudi, S. E. (2007). Arab intellectuals and the Bush administration's campaign for democracy: The case of the Greater Middle East initiative. The Middle East Journal, 390-418.
http://www.ingentaconnect.com/content/mei/mei/2007/00000061/00000003/art00002
en
Middle East Journal
oai:laur.lau.edu.lb:10725/23002021-03-19T09:59:48Zcom_10725_2053col_10725_2071
Egyptian Agricultural Exports since 1973
Baroudi, Sami E.
The overall performance of Egypt's agricultural exports since 1973 has been extremely problematic. Although certain export crops, principally citrus fruits, have performed relatively well, in general, long-term export trends have been dismal. Several factors have contributed to the weak performance of agricultural exports. Each of the ensuing problems could have been resolved, however, if government policy had been aimed at removing impediments to private enterprise in the spheres of agricultural production and agricultural exports. Despite persistent government rhetoric about 'infitah', official programmes since the early 1970s have continued to affect agriculture adversely, effectively impeding dramatic improvement in the export performance of each of Egypt's main export crops (cotton, rice, onions, garlic, potatoes, tomatoes, and citrus fruit exports are discussed in this article). Removing all government restrictions on private production and private exports, including government intervention in the foreign exchange market, would have raised prices for growers of internationally tradeable crops where domestic prices invariably have been lower than international prices. Higher prices for farmers would have stimulated export-oriented production, curtailed domestic consumption, and forced inefficient exporters who could not pay the higher prices to exit the export market. Notes, ref.
2015-10-22
2015-10-22
1993
2016-05-09
Article
0026-3141
http://hdl.handle.net/10725/2300
Baroudi, S. (1993). Egyptian agricultural exports since 1973. The Middle East Journal, 63-76.
http://www.jstor.org/stable/4328529?seq=1#page_scan_tab_contents
en
Middle East Journal
oai:laur.lau.edu.lb:10725/23012021-03-19T09:59:48Zcom_10725_2053col_10725_2071
Continuity in economic policy in postwar Lebanon
Baroudi, Sami E.
Examines the record of the Rafiq Hariri and Hoss governments of Lebanon from 1992 through 2000. Legacy of Hariri from 1992 through 1998; Management of the budget deficit and public debt under Hariri and Hoss; Attitude of the Hariri government towards foreign investment; Discussion of state-labor relations under the Hariri and Hoss governments.
2015-10-22
2015-10-22
2002-01
2016-05-10
Article
0271-3519
http://hdl.handle.net/10725/2301
Baroudi, S. E. (2002). Continuity in economic policy in postwar Lebanon: The record of the Hariri and Hoss governments examined, 1992-2000. Arab studies quarterly, 63-90.
http://www.jstor.org/stable/41858404?seq=1#page_scan_tab_contents
en
Arab Studies Quarterly
oai:laur.lau.edu.lb:10725/23042016-08-30T11:06:50Zcom_10725_2053col_10725_2071
Divergent Perspectives among Lebanon's Maronites during the 1958 Crisis
Baroudi, Sami E.
2015-10-22
2015-10-22
2015-10-22
Article
1066-9922
http://hdl.handle.net/10725/2304
http://dx.doi.org/10.1080/10669920500515093
Baroudi, S. E. (2006). Divergent perspectives among Lebanon's Maronites during the 1958 crisis. Critique: Critical Middle Eastern Studies, 15(1), 5-28.
http://www.tandfonline.com/doi/full/10.1080/10669920500515093
en
Critique: Critical Middle Eastern Studies
oai:laur.lau.edu.lb:10725/23062021-03-19T09:59:48Zcom_10725_2053col_10725_2071
Sectarianism and business associations in postwar Lebanon
Baroudi, Sami E.
Analyzes the balance of power and business associations in postwar Lebanon. Ways in which the term sectarian balance has been used in the Lebanese context; Background of the business associations in the country; Information about Beirut Traders Association (BTA); Overview of the Lebanese war and the BTA; Analysis of the first postwar election and second postwar election; Impact of the Lebanese war to its polity, economy and society.
2015-10-22
2015-10-22
2000-09-22
2016-05-12
Article
0271-3519
http://hdl.handle.net/10725/2306
Baroudi, S. E. (2000). Sectarianism and Business Associations in Postwar Lebanon. Arab Studies Quarterly, 81-107.
http://www.jstor.org/stable/41858353?seq=1#page_scan_tab_contents
en
Arab Studies Quarterly
oai:laur.lau.edu.lb:10725/23132018-01-23T13:33:30Zcom_10725_2053col_10725_2071
The Relationship between Using of an Intelligent Tutoring System and Class Achievement in a Basic Mathematics Course.
Haraty, Ramzi A.
El Shariff, Abbass
In this paper, we present a case in which we
integrated an intelligent tutoring system- ITS- in a basic
mathematics course. The proposed ITS –PrivateTutor- is
dynamic, web-based, adaptive, and interactive. It is
composed of six different modules; each has a distinct
function: student, domain, question, communication, expert,
and controller modules. The purpose of this system is not to
eliminate the role of human teachers, but to complement
their effort in reaching all students and having one-to-one
tutoring approach instead one-to-many. An experiment was
conducted in order to study the effectiveness of
PrivateTutor on class achievement. Students who were
enrolled in a “Basic Mathematics” course in the Fall of
2005-2006 and Spring of 2006 at the Lebanese American
University were randomly assigned to two groups: control
and treatment. The experimental results failed to show any
significant positive effect.
2015-10-23
2015-10-23
2008
2015-10-23
Article
1863-0383
http://hdl.handle.net/10725/2313
El Shariff, A., & Haraty, R. (2008). The Relationship between Using of an Intelligent Tutoring System and Class Achievement in a Basic Mathematics Course. International Journal of Emerging Technologies in Learning (iJET), 3(2), 20-23.
http://www.online-journals.org/index.php/i-jet/article/view/158
en
International Journal of Emerging Technologies in Learning (iJET)
oai:laur.lau.edu.lb:10725/23172021-03-19T09:59:48Zcom_10725_2053col_10725_2071
An auto-indexing method for Arabic text
Mansour, Nashat
Haraty, Ramzi A.
Daher, Walid
Houri, Manal
This work addresses the information retrieval problem of auto-indexing Arabic documents. Auto-indexing a text document refers to automatically extracting words that are suitable for building an index for the document. In this paper, we propose an auto-indexing method for Arabic text documents. This method is mainly based on morphological analysis and on a technique for assigning weights to words. The morphological analysis uses a number of grammatical rules to extract stem words that become candidate index words. The weight assignment technique computes weights for these words relative to the container document. The weight is based on how spread is the word in a document and not only on its rate of occurrence. The candidate index words are then sorted in descending order by weight so that information retrievers can select the more important index words. We empirically verify the usefulness of our method using several examples. For these examples, we obtained an average recall of 46% and an average precision of 64%
2015-10-23
2015-10-23
2008
2016-05-09
Article
0306-4573
http://hdl.handle.net/10725/2317
http://dx.doi.org/10.1177/147059580708337/:10.1016/j.ipm.2007.12.007
Mansour, N., Haraty, R. A., Daher, W., & Houri, M. (2008). An auto-indexing method for Arabic text. Information Processing & Management, 44(4), 1538-1545.
http://www.sciencedirect.com/science/article/pii/S0306457308000058
en
Information Processing & Management
oai:laur.lau.edu.lb:10725/23202018-01-23T12:57:16Zcom_10725_2053col_10725_2071
CASRA+
Haraty, Ramzi A.
El Ariss, Omar
The research proposed here is for an Arabic speech recognition application, concentrating on the Lebanese dialect. The system starts by sampling the speech, which is the process of transforming the sound from analog to digital and then extracts the features by using the Mel-Frequency Cepstral Coefficients (MFCC). The extracted features are then compared with the system's stored model; in this case the stored model chosen is a phoneme-based model. This reference model differs from the direct word template matching, where speech features that are extracted from the input are directly compared to the word templates. Each word template in the direct matching model is stored as a vector of feature parameters. Thus, when the vocabulary size of the ASR system becomes large, the memory size for the word template will become humongous. In contrast, the model used here is phoneme-like template matching. Word templates are stored as phoneme-like template parameters. Thus, the memory size for the word templates will not grow as fast as that of the direct matching model.
2015-10-23
2015-10-23
2007
2015-10-23
Article
1546-9239
http://hdl.handle.net/10725/2320
http://dx.doi.org/10.3844/ajassp.2007.23.32
Haraty, R. A., & El Ariss, O. (2007). CASRA+: a colloquial Arabic speech recognition application. American Journal of Applied Sciences, 4(1), 23-32.
http://ku7rj9xt8c.scholar.serialssolutions.com/?sid=google&auinit=RA&aulast=Haraty&atitle=CASRA%2B:+A+colloquial+arabic+speech+recognition+application&id=doi:10.3844/ajassp.2007.23.32&title=American+journal+of+applied+sciences&volume=4&issue=1&date=2007&spage=23&issn=1546-9239
en
American Journal of Applied Sciences
oai:laur.lau.edu.lb:10725/23232024-01-31T15:13:50Zcom_10725_2056com_10725_2058com_10725_2053col_10725_2077col_10725_2073col_10725_2071
Growth hormone treatment modulates active ghrelin levels in rats
Haddad, Haytham
Mroueh, Mohamad
Faour, Wissam H.
Daher, Costantine
Introduction: Impairments in neuroendocrine regulation of food intake and postprandial satiety are leading causes to obesity. Ghrelin peptide is a GI hormone known to increase food intake partly through induction of growth hormone. The regulation of ghrelin production is still unknown. Objective: The aim of the current study is to investigate the influence of growth hormone (Genotropin) treatment on active ghrelin levels in plasma, stomach, pancreas and kidney in rats. Material/methods: Male Sprague-Dawley rats, randomly allocated into control and three treatment groups, received daily subcutaneous injections of Genotropin at 2, 20 and 100 µg/rat/day for 5 consecutive days. Active ghrelin levels were quantified per tissue mass or tissue protein. Results: In control groups, the highest active ghrelin concentration in pmol/g tissue was found in the stomach (15.5 ± 0.21) followed by the pancreas (1.96 ± 0.066) and the kidney (1.36 ± 0.037). Genotropin treatment caused a dose dependent decrease in active ghrelin concentration in stomach, kidney and pancreas with a concomitant increase in plasma, and reaching significance at 20 and 100 µg/rat/day doses. However, the treatment caused variable effect on total protein concentrations, with a decrease in pancreas and an increase in stomach and kidney supernatants. Consequently, under such treatment, determination of active ghrelin concentration per tissue mass rather than per tissue protein is favored. Conclusions: The present study suggests a direct correlation between Genotropin treatment and active ghrelin secretion into the rat plasma via modulating its stores in stomach, kidney and pancreas.
2015-10-23
2015-10-23
2014
2015-10-23
Article
0743-5800
http://hdl.handle.net/10725/2323
http://dx.doi.org/10.3109/07435800.2013.799484
Haddad, H., Mroueh, M., Faour, W. H., & Daher, C. (2014). Growth hormone treatment modulates active ghrelin levels in rats. Endocrine research, 39(1), 39-43.
http://www.tandfonline.com/doi/abs/10.3109/07435800.2013.799484
en
Endocrine Research
oai:laur.lau.edu.lb:10725/23312021-03-19T09:59:48Zcom_10725_2053col_10725_2071
Business associations and the representation of business interests in post‐war Lebanon
Baroudi, Sami E.
2015-10-26
2015-10-26
2000-07
2016-05-09
Article
0026-3206
http://hdl.handle.net/10725/2331
http://dx.doi.org/10.1080/00263200008701317
Baroudi, S. E. (2000). Business associations and the representation of business interests in post‐war Lebanon: the case of the association of Lebanese industrialists. Middle Eastern Studies, 36(3), 23-51.
https://www.tandfonline.com/doi/abs/10.1080/00263200008701317?journalCode=fmes20
en
Middle Eastern Studies
oai:laur.lau.edu.lb:10725/23322020-05-23T13:57:33Zcom_10725_2053col_10725_2071
US–Lebanese Relations in the 21st Century
Baroudi, Sami E.
The literature on U.S. Middle East policy in the wake of the 11 September 2001 attacks has grown voluminous, and it is not the intention of this article to add to it any further. Rather, the article shifts the spotlight from the United States, the superpower, to Lebanon, a small and vulnerable country. Focusing on the period from 2000 to 2005, it examines Lebanon's reactions to a range of U.S. demands and pressures concerning the situation in South Lebanon, the financing of terrorism, Hezbollah, and Syria's role in Lebanon. In addition to providing an in-depth analysis of an important aspect of Lebanon's foreign relations in the 21st century, it addresses two important issues in the study of international relations: Why do small states occasionally defy the wishes of a superpower? And with what consequences?
2015-10-26
2015-10-26
2005-12
2015-10-26
Article
1480-6800
http://hdl.handle.net/10725/2332
http://dx.doi.org/10.5555/arwg.8.4.a04h012196tk5l32
Baroudi, S. (2005). US–Lebanese Relations in the 21st Century: A View from Beirut. The Arab World Geographer, 8(4), 196-219.
http://arabworldgeographer.org/doi/abs/10.5555/arwg.8.4.a04h012196tk5l32
en
The Arab World Geographer
oai:laur.lau.edu.lb:10725/23332020-05-23T13:52:51Zcom_10725_2053col_10725_2071
Lebanon's Foreign Trade Relations in the Postwar Era
Baroudi, Sami E.
2015-10-26
2015-10-26
2005-03
2015-10-26
Article
0026-3206
http://hdl.handle.net/10725/2333
http://dx.doi.org/10.1080/00263200500035165
Baroudi, S. E. (2005). Lebanon's Foreign Trade Relations in the Postwar Era: Scenarios for Integration (1990–Present). Middle Eastern Studies, 41(2), 201-225.
http://www.tandfonline.com/doi/full/10.1080/00263200500035165
en
Middle Eastern Studies
oai:laur.lau.edu.lb:10725/23342020-05-23T14:00:15Zcom_10725_2053col_10725_2071
Spiritual Authority versus Secular Authority
Baroudi, Sami E.
Tabar, Paul
2015-10-26
2015-10-26
2009
2015-10-26
Article
1943-6149
http://hdl.handle.net/10725/2334
http://dx.doi.org/10.1080/19436140903237038
Baroudi, S. E., & Tabar, P. (2009). Spiritual Authority versus Secular Authority: Relations between the Maronite Church and the State in Postwar Lebanon: 1990–2005. Middle East Critique, 18(3), 195-230.
http://www.tandfonline.com/doi/full/10.1080/19436140903237038
en
Middle East Critique
oai:laur.lau.edu.lb:10725/23362016-08-12T08:21:45Zcom_10725_2053col_10725_2071
Physical Activity, Smoking Practices, and Weight Status among Lebanese University Students
Rizk, Sandra
Yahia, Najat
Abdallah, Abbass
Achkar, Alice
Purpose: Understanding factors that impact overweight or obesity is
an essential step towards formulating programs to prevent or control
obesity in young adults. Thus, we aim to assess the prevalence of
physical activity and smoking habits in relation to weight status
among a sample of university students.
Methods: A cross-sectional survey was conducted among 220
students, chosen randomly from the Lebanese American University
campus, using a self reported questionnaire that included age, field of
study, physical activity (International Physical Activity
Questionnaire) and smoking habits. Anthropometric measurements
were taken to calculate body mass index. Adiposity measure was
determined as percentage body fat using bioelectrical impedance.
Results: This study showed that the majority of the students were
physically active. Vigorous-intensity physical activity practice was
observed more among male than female students. Overweight
students showed lower physical activity levels compared to normal
weight students and higher percentage of body fat. The majority of
students reported that they never smoked. Smokers in general were of
normal weight than overweight.
Conclusion: Our findings suggest that the prevalence of physical
activity among students was high and it was associated with students’
weight status; whereas, smoking was uncommon. Promoting physical
activity, as a weight control strategy, among students especially
females is recommended.
2015-10-26
2015-10-26
2010
2015-10-26
Article
1596-9886
http://hdl.handle.net/10725/2336
Rizk, S., Abdallah, A., Ashkar, A., & Yahia, N. (2008, October). Physical Activity, Smoking Practices, and Weight Status Among Lebanese University Students. In OBESITY (Vol. 16, pp. S178-S178). 75 VARICK ST, 9TH FLR, NEW YORK, NY 10013-1917 USA: NATURE PUBLISHING GROUP.
http://www.ajol.info/index.php/ijhr/article/view/70265
en
International Journal of Health Research
oai:laur.lau.edu.lb:10725/23372016-08-18T10:41:59Zcom_10725_2053col_10725_2071
Protocadherin of the liver, kidney and colon associates with detergent-resistant membranes during cellular differentiation
Rizk, Sandra
Alfalah, Marwan
Krahn, Micheal P.
Behrendt, Marc
Naim, Hassan Y.
Protocadherin LKC (PLKC) is a member of the heterogeneous subgroup of protocadherins that was identified and described as a potential tumor-suppressor gene involved in contact inhibition (Okazaki, N., Takahashi, N., Kojima, S., Masuho, Y., and Koga, H. (2002) Carcinogenesis 23, 1139–1148 and Ose, R., Yanagawa, T., Ikeda, S., Ohara, O., and Koga, H. (2009) Mol. Oncol. 3, 54–66). Several aspects of the structure, posttranslational processing, targeting, and function of this new protocadherin are still not known. Here, we demonstrate that the expression of PLKC at the apical membrane domain and its concentration at regions of cell-cell contacts occur concomitantly with significant elevation of PLKC-mRNA levels. Furthermore, it can be found within the adherens junctions, but it does not colocalize with tight junctions proteins ZO-1 and occludin, respectively. Additionally, unlike E-cadherin, PLKC is not redistributed upon Ca2+ removal. Biosynthetic labeling revealed N- and O-glycosylation as posttranslational modifications as well as a fast transport to the cell surface and a low turnover rate. During differentiation, PLKC associates with detergent-resistant membranes that trigger its redistribution from intracellular membranes to the cell surface. This association occurs concomitant with alterations in the glycosylation pattern. We propose a role for PLKC in the establishment of a proper epithelial cell polarity that requires O-linked glycosylation and association of the protein with detergent-resistant membranes.
2015-10-26
2015-10-26
2010
2015-10-26
Article
0021-9258
http://hdl.handle.net/10725/2337
http://dx.doi.org/10.1074/jbc.M109.080051
Krahn, M. P., Rizk, S., Alfalah, M., Behrendt, M., & Naim, H. Y. (2010). Protocadherin of the liver, kidney, and colon associates with detergent-resistant membranes during cellular differentiation. Journal of Biological Chemistry, 285(17), 13193-13200.
http://www.jbc.org/content/285/17/13193.short
en
The Journal of Biological Chemistry
oai:laur.lau.edu.lb:10725/23382016-08-12T08:20:34Zcom_10725_2053col_10725_2071
Eating habits and obesity among Lebanese university students
Rizk, Sandra
Yahia, Najat
Achkar, Alice
Abdallah, Abbass
Background: In the past year Lebanon has been experiencing a nutritional transition in food choices from
the typical Mediterranean diet to the fast food pattern. As a consequence, the dietary habits of young
adults have been affected; thus, overweight and obesity are increasingly being observed among the young.
The purpose of this study is to assess the prevalence of overweight and obesity on a sample of students
from the Lebanese American University (in Beirut) and to examine their eating habits.
Methods: A cross-sectional survey of 220 students (43.6% male and 56.4% female), aged 20 ± 1.9 years,
were chosen randomly from the Lebanese American University (LAU) campus during the fall 2006
semester. Students were asked to fill out a self-reported questionnaire that included questions on their
eating, drinking and smoking habits. Also, their weight, height, percentage body fat and body mass index
were measured. Body mass index (BMI) was used to assess students' weight status. Statistical analyses
were performed using the Statistical Package for Social Sciences software (version 13.0) to determine
overweight and obesity among students and to categorize eating habits.
Results: This study showed that the majority of the students (64.7%) were of normal weight (49% male
students compared to 76.8% female students). The prevalence of overweight and obesity was more
common among male students compared to females (37.5% and 12.5% vs. 13.6% and 3.2%, respectively).
In contrast, 6.4% female students were underweight as compared to 1% males. Eating habits of the
students showed that the majority (61.4%) reported taking meals regularly. Female students showed
healthier eating habits compared to male students in terms of daily breakfast intake and meal frequency.
53.3% of female students reported eating breakfast daily or three to four times per week compared to
52.1% of male students. There was a significant gender difference in the frequency of meal intake (P =
0.001). Intake of colored vegetables and fruits was common among students. A total of 30.5% reported
daily intake of colored vegetables with no gender differences (31.5% females vs. 29.2% males). Alcohol
intake and smoking were not common among students.
Conclusion: In spite of the overall low prevalence of overweight and obesity in the studied sample, results
indicate that university students would possibly benefit from a nutrition and health promotion program to
reduce the tendency of overweight and obesity, especially among male students, and to improve students'
eating habits.
2015-10-26
2015-10-26
2008
2015-10-26
Article
1475-2891
http://hdl.handle.net/10725/2338
http://dx.doi.org/10.1186/1475-2891-7-32
Yahia, N., Achkar, A., Abdallah, A., & Rizk, S. (2008). Eating habits and obesity among Lebanese university students. Nutr J, 7(32), 1-6.
https://nutritionj.biomedcentral.com/articles/10.1186/1475-2891-7-32
en
Nutrition Journal
oai:laur.lau.edu.lb:10725/23392016-07-22T08:12:14Zcom_10725_2053col_10725_2071
Protein and pH-dependent Binding of Nascent Pectin and Glucuronarabinoxylan to Xylogucan in Pea
Rizk, Sandra
Abdel-Massih, Roula
Baydoun, Elias
Brett, Christopher
Nascent pectin and glucuronoarabinoxylan, synthesised in vitro by membrane-bound enzymes from etiolated pea (Pisum sativum L.) epicotyls, were found to bind to pea xyloglucan in a pH-dependent manner. The binding was maximum at low pH (3–4), and decreased to almost zero at pH 6. The binding was probably non-covalent and reached saturation within 5 min. Removal of the fucose residues of xyloglucan decreased the degree of binding. Removal by protease of the proteins attached to nascent pectin and glucuronoarabinoxylan greatly reduced the maximum binding and abolished the pH-dependence. The observed binding may be of considerable significance in the process of cell-wall assembly and in the control of cell extension.
2015-10-26
2015-10-26
2000
2015-10-26
Article
0032-0935
http://hdl.handle.net/10725/2339
http://dx.doi.org/10.1007/s004250000303
Rizk, S. E., Abdel-Massih, R. M., Baydoun, E. A. H., & Brett, C. T. (2000). Protein-and pH-dependent binding of nascent pectin and glucuronoarabinoxylan to xyloglucan in pea. Planta, 211(3), 423-429.
http://link.springer.com/article/10.1007/s004250000303
en
Planta
oai:laur.lau.edu.lb:10725/23402020-05-23T14:20:12Zcom_10725_2053col_10725_2071
Conflict and Co-operation within Lebanon's Business Community
Baroudi, Sami E.
2015-10-26
2015-10-26
2001-10
2015-10-26
Article
0026-3206
http://hdl.handle.net/10725/2340
http://dx.doi.org/10.1080/714004420
Baroudi, S. (2001). Conflict and Co-operation within Lebanon's Business Community: Relations between Merchant's and Industrialists' Associations. Middle Eastern Studies, 37(4), 71-100.
http://www.tandfonline.com/doi/pdf/10.1080/714004420
en
Middle Eastern Studies
oai:laur.lau.edu.lb:10725/23412016-07-22T08:09:44Zcom_10725_2053col_10725_2071
Galactosyl-and fucosyltransferases in etiolated pea epicotyls: product identification and sub-cellular localisation
Rizk, Sandra
Baydoun, Elias
Abdel-Massih, Roula
Dani, Danielle
Brett, Christopher
Particulate membrane preparations from etiolated pea epicotyls were found to contain fucosyltransferases, which transferred fucose from GDP-fucose onto xyloglucan and N-linked glycoprotein, and galactosyltransferases, which transferred galactose from UDP-galactose onto galactan, xyloglucan, and N-linked glycoprotein. The products were characterised by specific enzyme degradation and by acid and alkaline hydrolysis. All the enzymes were found to be concentrated in the Golgi apparatus. The Golgi apparatus was further fractionated into membranes of low, medium and high-density. The glycoprotein fucosyltransferase activity was present in highest amounts in the medium-density Golgi membranes, while the majority of the xyloglucan fucosyltransferase was present in the low-density Golgi membranes. The majority of the galactan galactosyltransferase (galactan synthase) was found in the low-density membranes, while the glycoprotein galactosyltransferase was equally distributed in all three subfractions.
2015-10-26
2015-10-26
2001
2015-10-26
Article
0176-1617
http://hdl.handle.net/10725/2341
http://dx.doi.org/10.1078/0176-1617-00068
Baydoun, E. A. H., Abdel-Massih, R. M., Dani, D., Rizk, S. E., & Brett, C. T. (2001). Galactosyl-and fucosyltransferases in etiolated pea epicotyls: product identification and sub-cellular localisation. Journal of plant physiology, 158(2), 145-150.
http://www.sciencedirect.com/science/article/pii/S0176161704700206
en
Journal of plant physiology
oai:laur.lau.edu.lb:10725/23422020-05-23T14:42:13Zcom_10725_2053col_10725_2071
Countering US Hegemony
Baroudi, Sami E.
2015-10-26
2015-10-26
2008-01
2015-10-26
Article
0026-3206
http://hdl.handle.net/10725/2342
http://dx.doi.org/10.1080/00263200701711887
Baroudi, S. E. (2008). Countering US Hegemony: The Discourse of Salim al-Hoss and other Arab Intellectuals. Middle Eastern Studies, 44(1), 105-129.
en
Middle Eastern Studies
oai:laur.lau.edu.lb:10725/23432016-07-22T08:11:14Zcom_10725_2053col_10725_2071
Localisation of Meth Itransferases Involved in Glucuronoxylan and Pectin Meth lation in the Golgi Apparatus in Etiolated Pea Epicotyls
Rizk, Sandra
Baydoun, Elias
Brett, Christopher
Membranes from etiolated pea epicotyls were fractionated by discontinuous sucrose-density-gradient centrifugation into endoplasmic reticulum, Golgi apparatus and plasma membrane. The Golgi apparatus was further fractionated on a shallow, continuous sucrose density gradient into Golgi subfractions of low, medium and high density. Methyltransferases forming both EDTA-soluble and EDTA-insoluble methylated polysaccharides were found to be concentrated in the Golgi apparatus, chiefly in the low and medium density Golgi membranes. The products were characterised by acid and alkaline hydrolysis and enzymic digestion. These tests indicated that the EDTA-soluble methyltransferase product consisted mainly of methyl-esterified pectin, probably rhamnogalacturonan l, while the EDTA-insoluble methyltransferase product was mostly 4-O-methylglucuronoxylan. It was concluded that both pectin methyltransferase and glucuronoxylan methyltransferase are located in the low and medium density Golgi membranes, which may correspond to the cis- and medial-Golgi cisternae identified by electron microscopy.
2015-10-26
2015-10-26
1999
2015-10-26
Article
0176-1617
http://hdl.handle.net/10725/2343
http://dx.doi.org/10.1016/S0176-1617(99)80013-3
Baydoun, E. A. H., Rizk, S. E., & Brett, C. T. (1999). Localisation of Meth Itransferases Involved in Glucuronoxylan and Pectin Meth lation in the Golgi Apparatus in Etiolated Pea Epicotyls. Journal of plant physiology, 155(2), 240-244.
http://www.sciencedirect.com/science/article/pii/S0176161799800133
en
Journal of plant physiology
oai:laur.lau.edu.lb:10725/23452016-08-18T06:07:05Zcom_10725_2053col_10725_2071
The Antiproliferative Effect of Kefir Cell-Free Fraction on HuT-102 Malignant T Lymphocytes
Rizk, Sandra
Baydoun, Elias
Maalouf, Katia
Kefir is produced by adding kefir grains (a mass of proteins, polysaccharides, bacteria, and yeast) to pasteurized milk; it has been shown to control several cellular types of cancer, such as Sarcoma 180 in mice, Lewis lung carcinoma, and human mammary cancer. Human T-cell lymphotropic virus type 1 (HTLV-1) is the causative agent of adult T-cell leukemia, which is a fatal disease with no effective treatment. The current study aims at investigating the effect of a cell-free fraction of kefir on HuT-102 cells, which are HTLV-1–positive malignant T-lymphocytes. Cells were incubated with different kefir concentrations: the cytotoxicity of the compound was evaluated by determining the percentage viability of cells. The effect of all the noncytotoxic concentrations of kefir cell-free fraction on the proliferation of HuT-102 cells was then assessed. The levels of transforming growth factor (TGF)-α mRNA upon kefir treatment were then analyzed using reverse transcriptase polymerase chain reaction. Finally, the growth inhibitory effects of kefir on cell cycle progression and/or apoptosis were assessed by flow cytometry. The maximum cytotoxicity recorded at 80 μg/μL for 48 hours was only 43%. The percent reduction in proliferation was very significant, dose and time dependent, and reached 98% upon 60-μg/μL treatment for 24 hours. Kefir cell-free fraction caused the downregulation of TGF-α, which is a cytokine that induces the proliferation and replication of cells. Finally, a marked increase in cell cycle distribution was noted in the pre-G1 phase. In conclusion, kefir is effective in inhibiting proliferation and inducing apoptosis of HTLV-1–positive malignant T-lymphocytes. Therefore, further in vivo investigation is highly recommended.
2015-10-26
2015-10-26
2009
2015-10-26
2152-2650
http://hdl.handle.net/10725/2345
http://dx.doi.org/10.3816/CLM.2009.s.012
Rizk, S., Maalouf, K., & Baydoun, E. (2009). The antiproliferative effect of kefir cell-free fraction on HuT-102 malignant T lymphocytes. Clinical Lymphoma and Myeloma, 9, S198-S203.
http://www.sciencedirect.com/science/article/pii/S1557919011703407
oai:laur.lau.edu.lb:10725/23462021-03-19T09:59:48Zcom_10725_2053col_10725_2071
In the Shadow of the Qur'an
Baroudi, Sami E.
Academics have paid far more attention to Islamist movements than to the political discourse of contemporary Islamist authors. This is regrettable for four main reasons. First, Islamists address issues of major importance to their societies and these societies' relations with the external world, especially the West. Understanding their discourse holds the key to a better understanding of Islamist movements. Second, Islamists form an integral component of the Arab intelligentsia. As opinion shapers they influence the attitudes, beliefs and value systems of Arab publics. Third, Islamists have been writing extensively and critically about the United States, especially since the end of the Cold War. It is of great importance to understand why they are so ‘preoccupied’ with America and why they view it the way they do. Finally, Islamists write in a distinct style that leans heavily, and in complex ways, on the sacred text (the Qur'an). It is intriguing and intellectually stimulating to analyze the substance and style of their discourse and to contextualize it historically. This article focuses on one specific and critical aspect of contemporary Islamist discourse: its treatment of the United States.
2015-10-26
2015-10-26
2010-07
2016-05-13
Article
0026-3206
http://hdl.handle.net/10725/2346
http://dx.doi.org/10.1080/00263206.2010.492992
Baroudi, S. E. (2010). In the Shadow of the Qur'an: Recent Islamist Discourse on the United States and US Foreign Policy. Middle Eastern Studies, 46(4), 569-594.
http://www.tandfonline.com/doi/abs/10.1080/00263206.2010.492992
en
Middle Eastern Studies
oai:laur.lau.edu.lb:10725/23472021-03-19T09:59:48Zcom_10725_2053col_10725_2071
A modified lipid composition in Fabry disease leads to an intracellular block of the detergent-resistant membrane-associated dipeptidyl peptidase IV
Rizk, Sandra
Maalouf, Katia
Jia, Jia
Brogden, Graham
Keiser, Markus
Das, Anibh
Naim, Hassan Y.
Fabry disease is an X-linked lysosomal storage disorder that leads to abnormal accumulation of glycosphingolipids due to a deficiency of alpha-galactosidase A (AGAL). The consequences of these alterations on the targeting of membrane proteins are poorly understood. Glycosphingolipids are enriched in Triton-X-100- resistant lipid rafts [detergent-resistant membranes (DRMs)] and play an important role in the transport of several membrane-associated proteins. Here, we show that In fibroblasts of patients suffering from Fabry disease, the colocalization of AGAL with the lysosomal marker LAMP2 is decreased compared with wild-type fibroblasts concomitant with a reduced transport of AGAL to lysosomes. Furthermore, overall composition of membrane lipids in the patients’ fibroblasts as well as in DRMs reveals a substantial increase in the concentration of glycolipids and a slight reduction of phosphatidylethanolamine (PE). The altered glycolipid composition in Fabry fibroblasts is associated with an intracellular accumulation and impaired trafficking of the Triton-X-100 DRM-associated membrane glycoprotein dipeptidyl peptidase IV (DPPIV) in transfected Fabry cells, whereas no effect could be observed on the targeting of aminopeptidase N (ApN) that is not associated with this type of DRM. We propose that changes in the lipid composition of cell membranes in Fabry disease disturb the ordered Triton X-100 DRMs and have implications on the trafficking and sorting of DRM-associated proteins and the overall protein–lipid interaction at the cell membrane. Possible consequences could be altered signalling at the cell surface triggered by DRM-associated proteins, with implications on gene regulation and subsequent protein expression.
2015-10-26
2015-10-26
2010
2016-05-13
Article
0141-8955
http://hdl.handle.net/10725/2347
http://dx.doi.org/10.1007/s10545-010-9114-6
Maalouf, K., Jia, J., Rizk, S., Brogden, G., Keiser, M., Das, A., & Naim, H. Y. (2010). A modified lipid composition in Fabry disease leads to an intracellular block of the detergent-resistant membrane-associated dipeptidyl peptidase IV. Journal of inherited metabolic disease, 33(4), 445-449.
http://link.springer.com/article/10.1007/s10545-010-9114-6
en
Journal of inherited metabolic disease
oai:laur.lau.edu.lb:10725/23482021-03-19T09:59:48Zcom_10725_2053col_10725_2071
Dieting practices and body image perception among Lebanese university students
Rizk, Sandra
Yahia, Najat
Achkar, Alice
El-Ghazale, Hiba
Dieting is becoming a popular phenomenon among university students to achieve or maintain a healthy weight. The purpose of this study is to obtain a preliminary understanding of what dieting practices university students use in order to achieve their desirable body weight and to determine the magnitude of body dissatisfaction in relation to weight status among a sample of students (n=252) from the Lebanese American University in Beirut, Lebanon. Students filled out a self-reported questionnaire that included questions on their dieting and physical activity practices in addition to the body shape questionnaire (BSQ). Weight and height were measured to calculate body mass index. Percentage body fat was measured using Tanita scale body fat analyzer 300A. The outcome of this study showed that smoking and unhealthy dieting practices were not common among students (only 26% reported smoking, 8% reported taking laxatives and 4% taking diet pills). Half of the students reported practicing regular physical activity. Multivitamin intake was also not popular among students. BSQ scores indicate that the majority of students were not worried about their body image perception (64% reported not being worried, 19% were slightly worried, 12% were moderately worried and 5% were extremely worried). A gender difference was observed in the BSQ scores, as 89% of the "extremely worried" students were females. Collectively, results indicate that unhealthy dieting practices are uncommon among students. However, developing health promotion awareness' programs to promote good self image within the concept of a realistic healthy weight will be beneficial, especially among females.
2015-10-27
2015-10-27
2011
2016-05-09
Article
0964-7058
http://hdl.handle.net/10725/2348
http://dx.doi.org/10.6133/apjcn.2011.20.1.04
Yahia, N., El-Ghazale, H., Achkar, A., & Rizk, S. (2011). Dieting practices and body image perception among Lebanese university students. Asia Pacific journal of clinical nutrition, 20(1), 21.
http://www.airitilibrary.com/Publication/alDetailedMesh?docid=09647058-201103-201306100023-201306100023-21-28
en
Asia Pacific Journal of Clinical Nutrition
oai:laur.lau.edu.lb:10725/23492021-03-19T09:59:48Zcom_10725_2053col_10725_2071
Kefir induces cell-cycle arrest and apoptosis in HTLV-1-negative malignant T-lymphocytes
Rizk, Sandra
Maalouf, Katia
Baydoun, Elias
Background:
Adult lymphoblastic leukemia (ALL) is a malignancy that occurs in white blood cells. The overall cure rate in children is 85%, whereas it is only 40% in adults. Kefir is an important probiotic that contains many bioactive ingredients, which give it unique health benefits. It has been shown to control several cellular types of cancer.
Purpose:
The present study investigates the effect of a cell-free fraction of kefir on CEM and Jurkat cells, which are human T-lymphotropic virus type I (HTLV-1)-negative malignant T-lymphocytes.
Methods:
Cells were incubated with different kefir concentrations. The cytotoxicity of the compound was evaluated by determining the percentage viability of cells. The effect of all the noncytotoxic concentrations of kefir on the proliferation of CEM and Jurkat cells was then assessed. The levels of transforming growth factor-alpha (TGF-α), transforming growth factor- beta1 (TGF-β1), matrix metalloproteinase-2 (MMP-2), and MMP-9 mRNA upon kefir treatment were then analyzed using reverse transcriptase polymerase chain reaction (RT-PCR). Finally, the growth inhibitory effects of kefir on cell-cycle progression/apoptosis were assessed by Cell Death Detection (ELISA) and flow cytometry.
Results:
The maximum cytotoxicity recorded after 48-hours treatment with 80 μg/μL kefir was only 42% and 39% in CEM and Jurkat cells, respectively. The percent reduction in proliferation was very significant, and was dose-, and time-dependent. In both cell lines, kefir exhibited its antiproliferative effect by downregulating TGF-α and upregulating TGF-β1 mRNA expression. Upon kefir treatment, a marked increase in cell-cycle distribution was noted in the preG1 phase of CEM and Jurkat cells, indicating the proapoptotic effect of kefir, which was further confirmed by Cell Death Detection ELISA. However, kefir did not affect the mRNA expression of metalloproteinases needed for the invasion of leukemic cell lines.
Conclusion:
In conclusion, kefir is effective in inhibiting proliferation and inducing apoptosis of HTLV-1-negative malignant T-lymphocytes. Therefore, further in vivo investigation is highly recommended.
2015-10-27
2015-10-27
2011
2016-05-09
Article
1179-1322
http://hdl.handle.net/10725/2349
http://dx.doi.org/10.2147/CMR.S15109
Maalouf, K., Baydoun, E., & Rizk, S. (2011). Kefir induces cell-cycle arrest and apoptosis in HTLV-1-negative malignant T-lymphocytes. Cancer management and research, 3, 39.
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3064404/
en
Cancer management and research
oai:laur.lau.edu.lb:10725/23512016-08-24T06:35:45Zcom_10725_2053col_10725_2071
Cadherin-related protein 24 induces morphological changes and partial cell polarization by facilitating direct cell-cell interactions
Rizk, Sandra
Behrendt, Marc
Krahn, Micheal P.
Al-Bayati, Hiam
Amiri, Mahdi
Naim, Hassan Y.
Cadherin-related protein 24 (CDHR24) is a potential tumor suppressor located apically as well as laterally in polarized cells. Here, the role of CDHR24 in contributing to cell morphology and polarity is examined. CDHR24 was predominantly localized at the nonattached part of nonpolarizing cells while another apically sorted protein, aminopeptidase N, was equally distributed over the plasma membrane. Furthermore, CDHR24 expression induced cell aggregation capacity, indicating direct cell-cell interaction. The transepithelial resistance, however, was elevated in polarized MDCK cells, but not in nonpolarizing CHO cells. Our data propose a model in which CDHR24 is directly involved in cell and tissue morphogenesis.
2015-10-27
2015-10-27
2012
2015-10-27
Article
1431-6730
http://hdl.handle.net/10725/2351
http://dx.doi.org/ 10.1515/hsz-2011-0203
Behrendt, M., Krahn, M. P., Al-Bayati, H., Amiri, M., Rizk, S., & Naim, H. Y. (2012). Cadherin-related protein 24 induces morphological changes and partial cell polarization by facilitating direct cell-cell interactions.
http://ku7rj9xt8c.scholar.serialssolutions.com/?sid=google&auinit=M&aulast=Behrendt&atitle=Cadherin-related+protein+24+induces+morphological+changes+and+partial+cell+polarization+by+facilitating+direct+cell-cell+interactions.&id=pmid:22628312
en
Biological Chemistry
oai:laur.lau.edu.lb:10725/23522016-07-22T08:10:43Zcom_10725_2053col_10725_2071
Identification of EDTA-Soluble Polysaccharides from Pea Epicotyl Cell Walls and Their Interaction with Xyloglucan
Rizk, Sandra
Baydoun, Elias
Mansour, Sandra
Brett, Christopher
Nascent pectin and glucuronoxylan were prepared from membrane-bound enzymes obtained from pea epicotyls. They had previously been shown to exhibit a protein- and pH-dependent pattern of binding to cell wall ghosts and to xy-loglucan extracted from cell walls prepared from pea epicotyls; maximum binding required a pH of 3-4, and the pres-ence of cell wall proteins, namely assemblins. To determine whether wall polysaccharides deposited in cell walls be-have in the same manner as nascent polymers, radioactively labeled EDTA-soluble polymers were prepared from newly-deposited pea epicotyl cell walls. Different enzyme treatments followed by column chromatography, in addition to complete acid hydrolysis followed by paper and thin layer chromatography, indicated the presence of pectin, to-gether with smaller amounts of glucuronoxylan, in this EDTA-soluble extract. These radioactively labeled polysaccha-rides were found to bind to cell wall ghosts and to xyloglucan extracted from the second and third internodes of pea epicotyls cell walls in a pH-dependent manner, similar to the binding pattern obtained with nascent polymers. Maxi-mum binding occurred at pH 3-4, and also required the presence of protein.
2015-10-27
2015-10-27
2011
2015-10-27
Article
2158-2742
http://hdl.handle.net/10725/2352
http://dx.doi.org/10.4236/ajps.2011.22016
Baydoun, E. A. H., Mansour, O. C., Rizk, S. E., & Brett, C. T. (2011). Identification of EDTA-Soluble Polysaccharides from Pea Epicotyl Cell Walls and Their Interaction with Xyloglucan. American Journal of Plant Sciences, 2(02), 148.
http://search.proquest.com/openview/c401da0a6c2a44c684700a8f9f5c3e0a/1?pq-origsite=gscholar
en
American Journal of Plant Sciences
oai:laur.lau.edu.lb:10725/23552016-08-02T11:05:50Zcom_10725_2053col_10725_2071
Reaction–diffusion model of atherosclerosis development
El Khatib, N.
Génieys, S.
Kazmierczak, B.
Volpert, V.
Atherosclerosis begins as an inflammation in blood vessel walls (intima). The inflammatory response of the organism leads to the recruitment of monocytes. Trapped in the intima, they differentiate into macrophages and foam cells leading to the production of inflammatory cytokines and further recruitment of white blood cells. This self-accelerating process, strongly influenced by low-density lipoproteins (cholesterol), results in a dramatic increase of the width of blood vessel walls, formation of an atherosclerotic plaque and, possibly, of its rupture. We suggest a 2D mathematical model of the initiation and development of atherosclerosis which takes into account the concentration of blood cells inside the intima and of pro- and anti-inflammatory cytokines. The model represents a reaction–diffusion system in a strip with nonlinear boundary conditions which describe the recruitment of monocytes as a function of the concentration of inflammatory cytokines. We prove the existence of travelling waves described by this system and confirm our previous results which suggest that atherosclerosis develops as a reaction–diffusion wave. The theoretical results are confirmed by the results of numerical simulations.
2015-10-27
2015-10-27
2012-08-21
2015-10-27
Article
0303-6812
http://hdl.handle.net/10725/2355
http://dx.doi.org/10.1007/s00285-011-0461-1
El Khatib, N., Génieys, S., Kazmierczak, B., & Volpert, V. (2012). Reaction–diffusion model of atherosclerosis development. Journal of mathematical biology, 65(2), 349-374.
http://link.springer.com/article/10.1007/s00285-011-0461-1
en
Journal of Mathematical Biology
oai:laur.lau.edu.lb:10725/23562021-03-19T09:59:48Zcom_10725_2053col_10725_2071
Non-Newtonian Effects in a Fluid-Structure Interaction Model for Atherosclerosis
El Khatib, N.
Génieys, S.
Zine, A. M.
Volpert, V.
The inflammatory process of atherosclerosis leads to the formation of an atheroma plaque in the blood vessel. The interaction between the blood and the plaque may have dangerous consequences such as the rupture of the plaque. This rupture exposes tissue factors to the blood flow, leading to the formation of a clot that might result in a heart attack or an ischemic stroke. The blood-plaque interaction may also produce recirculations downstream of the plaque, and these recirculations enhance the risk of clot formation. In this paper we study the blood-plaque interaction using a fluid-structure interaction model. The atheroma plaque is composed of a lipid pool and a fibrous cap and both are modeled as hyperelastic materials. The blood is supposed to be a non-Newtonian fluid with a variable viscosity modeled by the Carreau law. The parameters used in our simulations are taken from experimental data. We investigate the non-Newtonian effects on the recirculations downstream of the atheroma plaque and on the stress over the plaque. The simulations show that the Newtonian model significantly overestimates the recirculations in comparison with the non-Newtonian model. They also show that the Newtonian model slightly underestimates the stress over the plaque for usual shear rates, but that this underestimation can become significant for low shear rates.
2015-10-27
2015-10-27
2009-01
2016-05-09
Article
0324-8313
http://hdl.handle.net/10725/2356
El Khatib, N., Génieys, S., Zine, A. M., & Volpert, V. (2009). Non-Newtonian effects in a fluid-structure interaction model for atherosclerosis. J. Tech. Phys, 1(50), 55-64.
https://www.researchgate.net/profile/V_Volpert/publication/240305368_Non-Newtonian_effects_in_a_fluid-structure_interaction_model_for_atherosclerosis/links/54ccb6200cf29ca810f575a1.pdf
en
Journal of Technical Physics
oai:laur.lau.edu.lb:10725/23572016-08-26T11:20:05Zcom_10725_2053col_10725_2071
Palestinian water supplies and demands
Al Khatib, Nader
Assaf, Karen
This chapter focuses on the role of fresh water resources in regional and international conflicts, and on mechanisms and principles that can play a role in reducing those conflicts. The adoption of some critical principles helps in reducing tensions and encourages effective and productive negotiations by the parties involved. These principles include (1) the complete sharing of all hydrologic data, including water supply and water use data, (2) the equitable allocation of limited water resources in a way guaranteeing a fixed minimum water supply to all, (3) the allocation of additional water supplies based on proportional rather than fixed strategies, and (4) the commitment to resolve water-related disputes peacefully, through direct negotiations involving both resource experts and politicians. Water-related conflicts may arise over the secondary impacts of water development schemes such as irrigation facilities, hydroelectric developments, and flood-control reservoirs, and over inequities in water supply and use. Major water developments often lead to the displacement of large local populations, adverse impacts on downstream water users, changes in control of local resources, and economic dislocations.
2015-10-27
2015-10-27
1994
2015-10-27
Article
0166-1116
http://hdl.handle.net/10725/2357
http://dx.doi.org/10.1016/S0166-1116(08)71400-6
Al-Khatib, N., & Assaf, K. (1994). Palestinian water supplies and demands. Studies in Environmental Science, 58, 55-68.
http://www.sciencedirect.com/science/article/pii/S0166111608714006
en
Studies in Environmental Science
oai:laur.lau.edu.lb:10725/23592016-08-25T10:01:57Zcom_10725_2053col_10725_2071
Assessing the relationship between different types of student feedback and the quality of revised writing
Mawlawi Diab, Nuwar
This paper reports on a quasi-experimental study comparing the effects of peer-editing to self-editing on improving students’ revised drafts. The study involved two intact classes (experimental and control groups) of an English course. The experimental group practiced peer-editing while the control group engaged in self-editing. After receiving sufficient training in their respective type of editing, both groups wrote a graded argumentative essay in two drafts. Results of a MANCOVA test carried out on the graded essay written by the two groups showed a statistically significant difference in revised writing in favour of peer-editing. A random sample of seven peer-edited and self-edited essays was analyzed to determine the differences between peer-editors’ and self-editors’ ability to notice errors, revise, and improve them. Results revealed that while peer-editors and self-editors had more or less the same noticing ability, writers who engaged in self-editing revised more errors than writers who received peer-feedback. In contrast, writers who engaged in peer-editing improved their revised drafts more than self-editors did. Differences in revised writing performance between the two groups are attributed to the use of language learning strategies, peer interaction, and engagement with language. The paper concludes with implications for classroom teaching/learning and recommendations for future research.
2015-10-27
2015-10-27
2011
2015-10-27
Article
1075-2935
http://hdl.handle.net/10725/2359
http://dx.doi.org/10.1016/j.asw.2011.08.001
Diab, N. M. (2011). Assessing the relationship between different types of student feedback and the quality of revised writing. Assessing writing, 16(4), 274-292.
http://www.sciencedirect.com/science/article/pii/S107529351100033X
en
Assessing Writing
oai:laur.lau.edu.lb:10725/23602016-08-25T10:03:29Zcom_10725_2053col_10725_2071
Effects of peer- versus self-editing on students’ revision of language errors in revised drafts
Mawlawi Diab, Nuwar
Previous research on the effects of peer-editing in bringing about language development generally examined the linguistic performance of only a few students and did not focus on specific language errors nor used a control group. To counteract these limitations, this study used a pre-test/post-test comparison group quasi-experimental design to compare the effects of peer-editing to that of self-editing on students’ correction of specific language errors in revised drafts. The language errors under study are two rule-based errors (subject/verb agreement, pronoun agreement) and two non rule-based errors (wrong word choice, awkward sentence structure). Results revealed that compared to the comparison group, the experimental group significantly reduced their rule-based errors in revised drafts but not the non rule-based errors. Since both groups received teacher instruction in editing language errors, but only the experimental group engaged in peer-editing, these results may be attributed to peer-editing. The study contributes to teaching pedagogy by encouraging teachers to use peer-editing in the writing classroom and to focus on the correction of few language errors to bring about language development.
2015-10-27
2015-10-27
2010
2015-10-27
Article
0346-251X
http://hdl.handle.net/10725/2360
http://dx.doi.org/10.1016/j.system.2009.12.008
Diab, N. M. (2010). Effects of peer-versus self-editing on students’ revision of language errors in revised drafts. System, 38(1), 85-95.
http://www.sciencedirect.com/science/article/pii/S0346251X09001468
en
System
oai:laur.lau.edu.lb:10725/23652016-08-17T09:58:27Zcom_10725_2053col_10725_2071
Solid waste treatment opportunities in the Palestinian authority areas
Al Khateeb, Nader
Khatib, Imad
Municipal services in the Palestinian Authority (PA) areas, including the West Bank and Gaza Strip (WBGS), are facing serious difficulties that have been intensified following the outbreak of the Palestinian uprising in late September 2000. The solid waste management services, being the most essential services
provided by the municipalities and village councils, are mostly affected by the ongoing harsh situation and hence proper solutions that take into account the actual amount of generated municipal solid waste and its composition is a pre-requisite for planning proper treatment. Hence, a study was carried out to
identify the actual status of solid waste in eight West Bank districts. A social survey was also conducted to collect information concerning the level of public awareness among communities surveyed to the perception of solid waste recycling and reuse. The results of the survey conducted in 2001–2002 were later reviewed during July–October 2008 to assess if the trend of domestic solid waste generation had changed. Based on the survey and post-assessment, it is found that political and economic conditions have both significantly impacted the trend of generated municipal solid waste and since no improvements
in either condition are forthcoming, it is concluded that survey results could be used in a planning study. A possible handling of the generated wastes may entail transferring the recyclable waste to Israeli recycling industries, and in constructing three composting plants in different accessible locations in the West Bank.
2015-10-28
2015-10-28
2008-05
2015-10-28
Article
0956-053X
http://hdl.handle.net/10725/2365
http://dx.doi.org/10.1016/j.wasman.2008.10.022
Khatib, I., & Al-Khateeb, N. (2009). Solid waste treatment opportunities in the Palestinian authority areas. Waste Management, 29(5), 1680-1684.
http://www.sciencedirect.com/science/article/pii/S0956053X08003966
en
Waste Management
oai:laur.lau.edu.lb:10725/23662021-03-19T09:59:48Zcom_10725_2053col_10725_2071
Atherosclerosis Initiation Modeled as an Inflammatory Process
El Khatib, N.
Genieys, S.
Volpert, V.
In this work we study the inflammatory process resulting in the development of atherosclerosis. We develop a one- and two-dimensional models based on reaction-diffusion systems to describe the set up of a chronic inflammatory response in the intima of an artery vessel wall. The concentration of the oxidized low density lipoproteins (ox-LDL) in the intima is the critical parameter of the model. Low ox-LDL concentrations do not lead to a chronic inflammatory reaction. Intermediate ox-LDL concentrations correspond to a bistable system and can lead to a travelling wave propagation corresponding to a chronic inflammatory reaction. In this case the disease development depends on the initial condition. If the concentration of monocytes in the intima is sufficiently high, which can be caused by an inflammation related to other factors, then the development of atherosclerosis can start. Otherwise, the system returns to the stable disease free equilibrium. High ox-LDL concentrations correspond to a monostable system and even a small perturbation of the non inflammatory case leads to a travelling wave propagation which corresponds to a chronic inflammatory response.
2015-10-28
2015-10-28
2007
2016-05-19
Article
0973-5348
http://hdl.handle.net/10725/2366
http://dx.doi.org/10.1051/mmnp:2008022
El Khatib, N., Genieys, S., & Volpert, V. (2007). Atherosclerosis initiation modeled as an inflammatory process. Mathematical Modelling of Natural Phenomena, 2(02), 126-141.
http://www.mmnp-journal.org/articles/mmnp/abs/2007/02/mmnp2007208/mmnp2007208.html
en
Mathematical Modelling of Natural Phenomena
oai:laur.lau.edu.lb:10725/23672022-08-17T11:25:13Zcom_10725_2053col_10725_2071
Disciplinary Writing in an EFL context from Teachers’ and Students’ Perspectives
Bacha, Nahla Nola
Studies have indicated that EFL students have difficulties in coping with the writing assignments in their
university courses. Although studies in Writing across the Discipline and English for Academic Purposes have
been helpful in this regard, little research has been done from the disciplinary teachers' perspective. This paper
reports on a comparative needs analysis study at one English medium university in Lebanon through a survey of
disciplinary teacher and student perceptions on the type of writing assignments students do in their university
courses, students' language problems and proficiency levels and the sources that help with developing
disciplinary writing. Findings show that teachers and students perceive research reports and lecture note-taking
done most frequently, teachers perceive less improvement in students' writing over a semester than students do,
identify more problems in student disciplinary writing, identify English teachers as the main source of help, but
importantly, both teachers and students agree to collaboration between disciplinary and English teachers in
raising students' disciplinary writing level. Student and teacher views diverged more than those of students in the
disciplines. Implications and recommendations are made for EFL contexts.
2015-10-28
2015-10-28
2012
2015-10-28
Article
2219-1933
http://hdl.handle.net/10725/2367
Bacha, N. N. (2012). Disciplinary writing in an EFL context from teachers’ and students’ perspectives. International Journal of Business and Social Science, 3(2), 233-256.
http://www.ijbssnet.com/journals/Vol_3_No_2_Special_Issue_January_2012/26.pdf
en
International Journal of Business and Social Science
oai:laur.lau.edu.lb:10725/23682022-08-18T11:00:57Zcom_10725_2053col_10725_2071
Multilingual educational trends and practices in Lebanon
Bahous, Rima
Bacha, Nahla Nola
Nabhani, Mona
This paper reports on the multilingual background, language education policies and practices in Lebanon. Specifically, it shows how the multilingual make-up in the country is translated into language policies in schools. A survey of 30 private school principals, middle managers and teachers was administered online to obtain their views on school policies, problems, successes, concerns and quality ranking. Results showed that a great deal of work has been done to introduce a language of instruction and a third language as decreed by the Ministry of Education and at the same time keep the national language, Arabic, alive. The main concerns of the participants were the need for teacher training programmes and resources. Although the research implies that the school systems, in keeping up with this multilingual milieu, could be contributing to the death of the national language as well as producing students who are not fluent in any of the languages, there continues to be an attempt to keep alive a quality multilingual educational context which contributes to a cohesive society.
2015-10-28
2015-10-28
2012
2015-10-28
Article
0020-8566
http://hdl.handle.net/10725/2368
http://dx.doi.org/10.1007/s11159-011-9250-8
Bahous, R., Bacha, N. N., & Nabhani, M. (2011). Multilingual educational trends and practices in Lebanon: A case study. International Review of Education, 57(5-6), 737-749.
http://link.springer.com/article/10.1007/s11159-011-9250-8
en
International Review of Education
oai:laur.lau.edu.lb:10725/23692022-08-18T10:04:20Zcom_10725_2053col_10725_2071
Gender and Politeness in a Foreign Language Academic Context
Bacha, Nahla Nola
Bahous, Rima
Diab, Rula L.
Theories and strategies of politeness and impoliteness are drawn upon to investigate underlying factors that
might contribute to an understanding of differences among students and teachers towards politeness strategies.
Classroom politeness in the present study is operationally defined according to various strategies or behaviors
that the students in question draw upon in reacting to different situations. The study explores through a survey
and a discourse completion test the degree of politeness the genders in an L1 Arabic context indicate to certain
situations. Results show that the possible causes for the 'misunderstandings' and any perceived differences in
'impoliteness' between the genders are more 'cultural' rather than that of 'impoliteness' on the part of the students.
Recommendations are made for prog
2015-10-28
2015-10-28
2012
2015-10-28
Article
1923-869X
http://hdl.handle.net/10725/2369
http://dx.doi.org/10.5539/ijel.v2n1p79
Bacha, N. N., Bahous, R., & Diab, R. L. (2012). Gender and Politeness in a Foreign Language Academic Context. International Journal of English Linguistics, 2(1), 79-96.
http://www.ccsenet.org/journal/html/ijel/articles/14671.html
en
International Journal of English Linguistics
oai:laur.lau.edu.lb:10725/23702022-08-18T10:29:22Zcom_10725_2053col_10725_2071
High schoolers’ views on academic integrity.
Bacha, Nahla Nola
Bahous, Rima
Nabhani, Mona
The issue of academic integrity in cheating on exams and plagiarising in writing is not a new one. All schools need to address this problem and some more than others. In the L2 context, the issues become more complex as non‐native students need to adhere to the ‘culture of learning’ of a Western model of academic integrity if they are to be accepted and succeed in higher education Western communities. Unfortunately, no research has been carried out in the Lebanese contexts as to the scope of the problem and how these issues are being dealt with at the pre‐university level. This exploratory study surveys 3986 high school students attending Grades 10–12 on their views of the extent of student cheating and plagiarism. It also examines any significant differences among the student grade levels. Recommendations are made for activities to raise students’ awareness of academic integrity according to Western practices and for future needed research.
2015-10-28
2015-10-28
2012
2015-10-28
Article
0267-1522
http://hdl.handle.net/10725/2370
http://dx.doi.org/10.1080/02671522.2010.550010
Bacha, N. N., Bahous, R., & Nabhani, M. (2012). High schoolers’ views on academic integrity. Research Papers in Education, 27(3), 365-381.
http://www.tandfonline.com/doi/abs/10.1080/02671522.2010.550010
en
Research Papers in Education
oai:laur.lau.edu.lb:10725/23712022-08-19T09:55:10Zcom_10725_2053col_10725_2071
Foreign Language Education in Lebanon
Bacha, Nahla Nola
Bahous, Rima
Knowing more than one or two languages has always been a natural consequence of cultural exchange. Thus educational institutions the world over have placed teaching/learning of languages high on their agendas as they find the need for their students to be competitive in the global career arena. The communication among different cultures and the efforts of education have added to the multi lingual/culture of many countries. However, the growth of this multilingualism/multiculturalism is not without its questions concerning complexities involved in what attitudes do the learners hold towards learning languages, which languages should be taught and whether these languages would ‘complex’ the learners in finding their own native language ‘inferior’. This study examines these complexities in Lebanon, a country long known for its multi lingual/cultural makeup, Specifically, the paper gives an overview of the cultural influences in the country over the past century and how this was responsible for the adoption of the foreign languages, mainly French and English, that coexist in the country today along with Arabic, the native language. The paper focus on the consequent educational trends in teaching/learning languages in noting the new National Curriculum changes in the 1990’s after the civil war and how the policies were implemented at both the pre and tertiary sectors. Cultural, attitudinal, motivational and language acquisition factors are discussed in how the French medium and English medium schools accounted for them in their language curricula and how they impact learners’ language development. The researchers debate whether the teaching/learning of foreign languages may eventually lead to the ‘decline’ of the national language, the latter being a ‘complex’ for the many, which is a concern that most countries are facing these days.
2015-10-28
2015-10-28
2011
2015-10-28
Article
1798-4769
http://hdl.handle.net/10725/2371
http://dx.doi.org/10.4304/jltr.2.6.1320-1328
Bacha, N. N., & Bahous, R. (2011). Foreign language education in Lebanon: A context of cultural and curricular complexities. Journal of Language Teaching and Research, 2(6), 1320-1328.
http://www.academypublication.com/issues/past/jltr/vol02/06/16.pdf
en
Journal of Language Teaching and Research
oai:laur.lau.edu.lb:10725/23722022-08-18T10:56:33Zcom_10725_2053col_10725_2071
Motivating Students in the EFL Classroom
Bahous, Rima
Bacha, Nahla Nola
Nabhani, Mona
Motivating EFL students to develop in the target language is quite complex. In many cases, these students face difficulties in learning English and are often demotivated to learn. Research in classroom motivation has found that certain strategies can help these students adopt more positive attitudes and become more motivated in the learning process. This exploratory study investigates the perceptions through interviewing students and surveying teachers’ views in an EFL Program of the problems that hinder these students’ learning in the English classes related to motivation. Findings show that learners are not motivated to learn English because of an over-focus on writing skills with very little new learning experiences, uninteresting materials, and unclear links between language courses and their majors or future careers. Results also indicate that teachers complain of unmotivated students and pre-structured syllabi leaving little room for communicative methods. Implications are made for the classroom.
2015-10-28
2015-10-28
2011
2015-10-28
Article
1916-4742
http://hdl.handle.net/10725/2372
http://dx.doi.org/10.5539/elt.v4n3p33
Bahous, R., Bacha, N., & Nabhani, M. (2011). Motivating students in the EFL classroom: A case study of perspectives. English Language Teaching, 4(3), 33-43.
https://eric.ed.gov/?id=EJ1080730
https://eric.ed.gov/?id=EJ1080730
en
English Language Teaching
oai:laur.lau.edu.lb:10725/23732022-08-18T10:55:31Zcom_10725_2053col_10725_2071
A Match or a Mismatch between Student and Teacher Learning Style Preferences
Sabeh, Ghada
Bahous, Rima
Bacha, Nahla Nola
Nabhani, Mona
The purpose of this study is to identify the learning styles of the students enrolled in an American affiliated Lebanese university who are currently registered in intensive English courses and to investigate whether there is a match between students’ learning styles and teachers’ teaching styles. The participants in this study were 103 students and five ESL teachers. A modified version of the PLSPQ has been used as an assessment instrument to determine the learning styles of the students. The results showed that Lebanese students have a preference for multiple learning styles, auditory, kinesthetic, tactile and visual and that age, gender, discipline and time spent studying English are variables that affect the learning styles of the students. The findings showed that there was no match between the teaching and learning styles of the teachers and students. Implications are made for the classroom.
2015-10-28
2015-10-28
2011
2015-10-28
Article
1923-869X
http://hdl.handle.net/10725/2373
http://dx.doi.org/10.5539/ijel.v1n1p162
Sabeh, G., Bahous, R., Bacha, N. N., & Nabhani, M. (2011). A match or a mismatch between student and teacher learning style preferences. International Journal of English Linguistics, 1(1), 162-172.
http://search.proquest.com/openview/4fbae99c951328911dcf2b5c137faf66/1?pq-origsite=gscholar
en
International Journal of English Linguistics
oai:laur.lau.edu.lb:10725/23742022-08-19T09:54:06Zcom_10725_2053col_10725_2071
Discourse on ageing in the autumn of life: language, identity, society and learning in a Lebanese nursing home
Ghandour, Hiba
Bahous, Rima
Bacha, Nahla Nola
This article describes a holistic investigation into aspects of the ageing process. It attempts to explore three different areas of enquiry that have served to centre clusters of research in the field: language and communicative abilities in old age; identity in old age; social values and practices in old age. It discusses a study of 20 residents in a nursing home in Beirut which aimed to investigate the use of narrative by the group to establish how different linguistic and communicative abilities, personal identities, and social values and practices had been shaped. It concludes by considering the implications for later life learning and research.
2015-10-28
2015-10-28
2011
2015-10-28
Article
2044-5458
http://hdl.handle.net/10725/2374
Ghandour, H., Bahous, R., & Bacha, N. (2011). Discourse on ageing in the autumn of life: language, identity, society and learning in a Lebanese nursing home. International Journal of Education and Ageing, 1(3), 267–284.
en
International Journal of Education and Ageing
oai:laur.lau.edu.lb:10725/23752022-08-19T09:40:09Zcom_10725_2053col_10725_2071
Teaching literature in English as a foreign language classrooms
Bacha, Nahla Nola
There has been much controversy as to the place of literature in the EFL classroom; however, literature is important to students’ personal, linguistic and cultural development. This paper is an attempt to investigate L1 Arabic students’ attitudes toward literature who have been known to find it of little relevance to their university major, career or life. Specifically, the study explores students’ attitudes to and preferences for reading literature focusing on one genre, the novel, in the English as a Foreign Language Program, Humanities Department, in an English medium university in Lebanon, in the hope of reintroducing the novel in the program. Student survey findings indicate positive significant student attitudes toward reading novels that are ‘interesting’, by authors from different countries and that relate to both their courses and to their lives. Results also show that students consider their language improving to a certain extent. Implications are far reaching for effective literature teaching/learning methods as well as interdisciplinary work between the English Language, Humanities and other disciplines to raise appreciation for literature in line with the liberal arts education of the university and as a crucial means of cultural communication in our global ‘village’ of today.
2015-10-29
2015-10-29
2010
2016-05-19
Article
1447-9508
http://hdl.handle.net/10725/2375
https://doi.org/10.18848/1447-9508/CGP/v08i01/42813
Bacha, N. N. (2010). Teaching literature in English as a foreign language classrooms: A study of student attitudes. International Journal of the Humanities, 8(1), 47-64.
https://cgscholar.com/bookstore/works/teaching-literature-in-an-english-as-a-foreign-language-classroom?category_id=cgrn&path=cgrn%2F228%2F234
en
International Journal of the Humanities
oai:laur.lau.edu.lb:10725/23762022-08-19T09:49:58Zcom_10725_2053col_10725_2071
CALL in Lebanese elementary ESL writing classrooms
Fidaoui, Diana
Bahous, Rima
Bacha, Nahla N.
This article discusses the effectiveness of using computer assisted language learning (CALL) in motivating fourth-grade English as a second language (ESL) students to develop better writing skills. It also seeks to explore the perceptions of ESL teachers and students regarding the use of CALL in the ESL classroom. The study involved 48 fourth graders and their four teachers. Data were gathered during a three-month period using questionnaires, interviews, and observations. Findings revealed that teachers as well as students shared similar perceptions toward the use of CALL in the writing classroom and identified the same motivational factors that would encourage students to produce well-developed written work. Additional work on the productive integration of computer technology in the writing classroom and its effects on motivating students to produce work of high quality is recommended.
2015-10-29
2015-10-29
2010
2016-05-19
Article
0958-8221
http://hdl.handle.net/10725/2376
http://dx.doi.org/10.1080/09588221003666248
Fidaoui, D., Bahous, R., & Bacha, N. N. (2010). CALL in Lebanese elementary ESL writing classrooms. Computer Assisted Language Learning, 23(2), 151-168.
http://www.tandfonline.com/doi/abs/10.1080/09588221003666248
en
Computer Assisted Language Learning
oai:laur.lau.edu.lb:10725/23772022-08-19T09:40:46Zcom_10725_2053col_10725_2071
Teaching the academic argument in a university EFL environment
Bacha, Nahla Nola
An educational challenge that many university EFL students face is the production of written academic arguments as part of their required essays. Although the importance of argumentative writing in education is uncontested, and research shows that EFL students find difficulties in producing such texts, it is not adequately dealt with for the L1 Arabic writer. In this paper, an explicit instructional approach in teaching the academic argument in required essays in an advanced EAP course is described. The approach is based on the thesis-support element of argumentation and organizational plans operationalized through a teaching/learning cycle. The instruction of the academic argument in the essay is scaffolded through five steps of the cycle: building the context, modeling and deconstructing texts, constructing texts jointly, constructing texts independently and linking related texts. Qualitative analysis of a few student sample essays indicated improved argumentative structure and transfer of acquired argumentative writing skills to new topics. Although the improvements can not be generalized, it is considered a successful attempt in providing needed explicit instruction for L1 Arabic students in an EFL environment and which also could be used with students in any EFL context. Reflections and developments for future improvement of the instructional approach are made.
2015-10-29
2015-10-29
2010
2016-05-19
Article
1475-1585
http://hdl.handle.net/10725/2377
http://dx.doi.org/10.1016/j.jeap.2010.05.001
Bacha, N. N. (2010). Teaching the academic argument in a university EFL environment. Journal of English for Academic Purposes, 9(3), 229-241.
http://www.sciencedirect.com/science/article/pii/S1475158510000378
en
Journal of English for Academic Purposes
oai:laur.lau.edu.lb:10725/23782022-08-19T09:53:28Zcom_10725_2053col_10725_2071
Contrasting views of business students’ writing needs in an EFL environment
Bacha, Nahla Nola
Bahous, Rima
This paper reports on a study of business student and faculty views at the Lebanese American University as to the students’ language proficiency levels, writing in particular, and what the specific writing needs are in order for students to be effective in their course work. The role of the English and business faculty is also investigated. English for specific purposes (ESP) research has indicated that although both faculty and students consider writing skills important, students’ English proficiency is not always up to the level needed to cope with the various writing genres required. Helping students raise their writing proficiency level has been the role of the English teacher; however, recent research in the field shows that students would benefit from the cooperation between the business and English faculty towards this end. Findings indicate that students perceive their writing skills as more satisfactory than faculty do, differ on what writing tasks are necessary, but agree that both the business and English faculty should cooperate in the teaching of English. Implications are drawn for ongoing cooperation in the teaching/learning of writing between the business discipline and the English as a Foreign language classroom.
2015-10-29
2015-10-29
2008
2015-10-29
Article
0889-4906
http://hdl.handle.net/10725/2378
http://dx.doi.org/10.1016/j.esp.2007.05.001
Bacha, N. N., & Bahous, R. (2008). Contrasting views of business students’ writing needs in an EFL environment. English for Specific Purposes, 27(1), 74-93.
http://www.sciencedirect.com/science/article/pii/S0889490607000191
en
English for Specific Purposes
oai:laur.lau.edu.lb:10725/23792022-08-17T11:21:37Zcom_10725_2053col_10725_2071
A Citizenship through the academic curriculum
Bacha, Nahla Nola
2015-10-29
2015-10-29
2003
2015-10-29
Article
http://hdl.handle.net/10725/2379
Bacha, N. N. (2003). A Citizenship Through the Academic Curriculum. Annales de Philosophie et des Sciences Humaines, 14, 221-229.
https://www.researchgate.net/publication/279690355_A_Citizenship_Through_the_Academic_Curriculum
en
Annales de Philosophie et des Sciences Humaines
oai:laur.lau.edu.lb:10725/23802022-08-18T09:49:13Zcom_10725_2053col_10725_2071
English Across the Academic and Professional Communities
Bacha, Nahla Nola
2015-10-29
2015-10-29
2003
2015-10-29
Article
http://hdl.handle.net/10725/2380
Bacha, N. N. (2003). English Across the Academic and Professional Communities. Annales de Philosophie et des Sciences Humaines, 15, 51-57.
en
Annales de Philosophie et des Sciences Humaines
oai:laur.lau.edu.lb:10725/23812022-08-19T09:48:08Zcom_10725_2053col_10725_2071
Testing writing in the EFL classroom
Bacha, Nahla Nola
2015-10-29
2015-10-29
2015-10-29
2002
Article
1559-663X
http://hdl.handle.net/10725/2381
Bacha, N. (2002). Testing writing in the EFL classroom: Student expectations. In English teaching forum (Vol. 40, No. 2, pp. 14-19).
https://americanenglish.state.gov/resources/english-teaching-forum-2002-volume-40-number-2
en
English Teaching Forum
oai:laur.lau.edu.lb:10725/23832016-08-11T09:51:18Zcom_10725_2053col_10725_2071
A Taste of the Real Thing
Mohsen, Raed
Haraty, Nabelah
2015-10-30
2015-10-30
2002
2015-10-30
Article
http://hdl.handle.net/10725/2383
Mohsen, R.A. and Haraty, N. (2002, summer). A Taste of the Real Thing: Public Speaking Activity for Deaf Students. Communication and Theater Association of Minnesota Journal. 29, 63-69
en
Communication and Theater Association of Minnesota
oai:laur.lau.edu.lb:10725/23842016-08-25T11:07:21Zcom_10725_2053col_10725_2071
Out on Campus
Mohsen, Raed
2015-10-30
2015-10-30
2015-10-30
Article
http://hdl.handle.net/10725/2384
Mohsen, R.A. (1993, summer). Out on Campus: A Challenging Public Speaking Experience. The Speech Communication Teacher. 7 (4), 10-11
en
The Speech Communication Teacher
oai:laur.lau.edu.lb:10725/23862016-08-25T11:10:55Zcom_10725_2053col_10725_2071
Petitioning Governments for Redress of Grievances
Mohsen, Raed
2015-10-30
2015-10-30
1993
2015-10-30
Article
1073-8460
http://hdl.handle.net/10725/2386
Mohsen, R.A. (1993, fall). Petitioning Governments for Redress of Grievances: A Communication Approach to Terrorism. Speech and Theatre Association of Missouri Journal. 23, 50-63
en
Speech and Theatre Association of Missouri Journal
oai:laur.lau.edu.lb:10725/23872016-08-25T11:00:13Zcom_10725_2053col_10725_2071
Communication Issues in Deaf / Hearing Intimate Relationships
Mohsen, Raed
2015-10-30
2015-10-30
1993
2015-10-30
Article
1065-7193
http://hdl.handle.net/10725/2387
Mohsen, R.A. (1993). Communication Issues in Deaf / Hearing Intimate Relationships: Toward a Better Future. A Deaf American Monograph. 43, 99-102
en
A Deaf American Monograph
oai:laur.lau.edu.lb:10725/23882016-08-25T11:05:14Zcom_10725_2053col_10725_2071
Cultural Considerations in Evaluating Classroom Performances
Mohsen, Raed
2015-10-30
2015-10-30
1991
2015-10-30
Article
http://hdl.handle.net/10725/2388
Mohsen, R.A. (1991, fall). Cultural Considerations in Evaluating Classroom Performances. Journal of the Oklahoma Speech Theatre Communication Association. 13, (13), 14-23
en
Journal of the Oklahoma Speech Theatre Communication Association
oai:laur.lau.edu.lb:10725/23892016-08-24T06:38:32Zcom_10725_2053col_10725_2071
The Effect of Barkley’s Behavior Management Principles on a child with ADHD in a Lebanese inclusive classroom
Oweini, Ahmad
Assi, Ghenwa
Barkley’s behavior management principles for students with ADHD developed and implemented
in a second grade inclusive classroom through a system of behavior modification techniques are studied in
this project. The principles involve the application of some behavior modification techniques in class
aiming at teaching the ADHD child self-control, response inhibition and social skills training. The system
emphasizes the cooperation of general education teacher, special education teacher and the student. Two
behaviors are focused on: calling –out and out of seat. Pre-observations as well as observations during the
program’s implementation are done to examine the effectiveness of the behavior modification principles.
The results have shown that the system is effective when consistency and collaboration between regular
and special education teachers are present
2015-10-30
2015-10-30
2013
2015-10-30
Article
2162-321X
http://hdl.handle.net/10725/2389
Assi, G., & Oweini, A. (2013). The Effect of Barkley's Behavior Management Principles on a child with ADHD in a Lebanese inclusive classroom: A case study. American Academic & Scholarly Research Journal, 5(3 special issue), 47.
http://search.proquest.com/openview/146810c49ff953b1d1d2dab0e5332fd8/1?pq-origsite=gscholar
en
The American and Scholarly Research Journal
oai:laur.lau.edu.lb:10725/23912016-08-30T09:13:53Zcom_10725_2053col_10725_2071
A Multisensory Approach to Teach Arabic Decoding to Students with Dyslexia
Bahous, Rima
Oweini, Ahmad A.
Hazoury, Katia H.
This paper proposes a technique for teaching decoding of the Arabic language to Arab dyslexic students following the multisensory, systematic, explicit phonics approach and based in part on the Orton-Gillingham approach. This technique emphasizes vocabulary controlled, font-modified, cumulative, color-coded reading materials, and orthographic rather than linguistic patterns. A comprehensive theoretical framework and a detailed development of the multisensory lessons are provided, and a sample lesson is included. This method needs to be tested empirically to measure its effectiveness. Supplementary activities are recommended to maximize its benefits.
2015-10-30
2015-10-30
2009
2015-10-30
Article
1937-6928
http://hdl.handle.net/10725/2391
Hazoury, K. H., Oweini, A. A., & Bahous, R. (2009). A Multisensory Approach to Teach Arabic Decoding to Students with Dyslexia. Learning Disabilities: A Contemporary Journal, 7(1), 1-20.
http://eric.ed.gov/?id=EJ865605
http://eric.ed.gov/?id=EJ865605
en
Learning Disabilities: A Contemporary Journal
oai:laur.lau.edu.lb:10725/23932016-08-24T07:55:07Zcom_10725_2053col_10725_2071
Sunset Boulevard By Way of Wadi Shahrour
Oueini, Ahmad
2015-10-30
2015-10-30
2010
2015-10-30
Article
0259-9953
http://hdl.handle.net/10725/2393
Oueini, A. (1994). Sunset Boulevard By Way of Wadi Shahrour. Women in the Performing Arts, (64), 53.
http://s3.amazonaws.com/academia.edu.documents/31093250/p001-128.pdf?AWSAccessKeyId=AKIAJ56TQJRTWSMTNPEA&Expires=1469775435&Signature=mz%2B16pKGY7Y%2FBLkJkD8AXZ092Z0%3D&response-content-disposition=inline%3B%20filename%3DUmm_Kulthum.pdf#page=53
en
Al Raida
etdms///col_10725_2071/100