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  • An unstaggered central scheme on nonuniform grids for the simulation of a compressible two-phase flow model 
    Touma, Rony; Zeidan, Dia (2018-09-10)
    In this paper we extend a central finite volume method on nonuniform grids to the case of drift-flux two-phase flow problems. The numerical base scheme is an unstaggered, non oscillatory, second-order accurate finite volume ...
  • Unstaggered central schemes for hyperbolic systems 
    Touma, Rony (2018-09-07)
    We develop an unstaggered central scheme for approximating the solution of general two‐dimensional hyperbolic systems. In particular, we are interested in solving applied problems arising in hydrodynamics and astrophysics. ...
  • Unstaggered central schemes for MHD and SMHD 
    Touma, Rony (2018-09-07)
    We develop second-order nonoscillatory unstaggered central schemes (UCS) with a constrained transport-type method to solve one and two-dimensional hyperbolic problems arising in astrophysics. In contrast with the original ...
  • Unstaggered central schemes with constrained transport treatment for ideal and shallow water magnetohydrodynamics 
    Touma, R. (2016-04-07)
    We propose an unstaggered, non-oscillatory, second-order accurate central scheme for approximating the solution of general hyperbolic systems in one and two space dimensions, and in particular for estimating the solution ...
  • Unsupervised Feature-Based Visualization Tool Applied on Medical Data 
    Moufarrej, Angela Sleiman (Lebanese American University, 2020-12-20)
    In a time when data is experiencing a remarkable growth in different fields, extracting and understanding the correlations between different data features is becoming increasingly important in many application areas, ranging ...
  • Unsustainability in emergent systems 
    Haddad, Marc; Mansour, Charbel; Stephan, Jad (IEEE, 2017-06-12)
    The land transportation network in Lebanon faces continuing and wide-ranging challenges at the level of infrastructure development, planning and overall system management. These challenges are already significant enough ...
  • Unusual case of difficult double-lumen endotracheal tube removal 
    Yammine, Joseph N.; Yazbek-Karam, Vanda G.; Haswani, Roula W.; Karam, Hoda S.; Haddad, Walid M.; Youssef, Pierre S. (2019-05-02)
    A reusable Robertshaw red rubber double-lumen endotracheal tube (DLT) was placed to facilitate lung isolation for thoracoscopy in a 49-year-old atopic patient. In spite of its smooth insertion, it was then not possible to ...
  • Unusual skin pigmentation in a patient with human immunodeficiency virus (HIV) infection 
    Mokhbat, Jacques; El-Saad Debahy, N.; Aoun, J. P.; Hajjar, E. (2017-02-15)
    Diffuse addisonian hyperpigmentation in a male patient with acquired immunodeficiency syndrome related complex (ARC) is described. The etiology of pigmentation in this patient remains obscure but is most probably related ...
  • Unveiling the unseen toll: exploring the impact of the Lebanese economic crisis on the health-seeking behaviors in a sample of patients with diabetes and hypertension 
    Cherfane, Michelle; Boueri, Myriam; Issa, Elio; Abdallah, Racha; Hamam, Ali; Sbeity, Kassem; Saad, Anthony; Abi-Gerges, Aniella (2024-03-01)
    Background Against the backdrop of Lebanon’s escalating multifaceted crisis which resulted in medication shortages for chronic diseases and unaffordable healthcare services, the current study endeavors to shed light on a ...
  • Upconversion-powered photoelectrochemistry 
    Khnayzer, Rony S.; Blumhoff, Jorg; Harrington, Jordan A.; Haefele, Alexandre; Deng, Fan; Castellano, Felix N. (2017-11-06)
    Upconversion photochemistry occurring between palladium(II) octaethylporphyrin (PdOEP, 1) and 9,10-diphenylanthracene (DPA, 2) in toluene successfully sensitizes nanostructured WO3 photoanodes (Eg = 2.7 eV) to sub-bandgap ...
  • Updated guidelines for live endoscopy demonstrations 
    Azar, Riad R.; Loren, David E.; Charles, Roger J.; Dumot, John A.; Farooq, Farees; Gopal, Deepak V.; Jaffe, David; Shami, Vanessa M.; Sharma, Virender K. (2016-09-21)
    Courses that demonstrate endoscopic techniques in real time, termed live demonstrations, are valued because they provide invaluable lessons from real-life situations along with the opportunity to demonstrate standards of ...
  • Uplift capacity and impact resistance of roof tiles 
    Abi Shdid, Caesar; Mirmiran, Amir; Wang, Ton-Lo; Jimenez, Diego; Huang, Peng (2016-10-20)
    Roof coverings, particularly barrel tiles, have experienced significant damage over the last few years from storms, even weaker storms such as Category 1 Hurricane Wilma in 2005. Efforts have been made to ban mortar-set ...
  • Uplink Noma in UAV-Assisted IoT Networks 
    Mrad, Ali (Souad Hasbany, 2022-05-17)
    Non-orthogonal multiple access (NOMA) is one of the promising access technologies to improve spectral efficiency and serve a higher number of users in different internet of things (IoT) systems. This technology proves ...
  • URANS modeling of three airfoils with different stall mechanisms 
    Elkhoury, M.; Najem, J.; Nakad, Z. (ASME, 2017-08-03)
    Capability of recently developed Menter (ME) and Modified Menter (MME) one-equation models in predicting prestall and poststall characteristics of three airfoils that exhibit different stall onset mechanisms is investigated. ...
  • The urban hub 
    Chamoun, Rachid G. (Union Institute & University, 2018-10-08)
    Beirut as a war torn city is going through a critical transformation and being stretched between two extremes: The Western /Mediterranean and The Arabian /Middle Eastern cultures presenting itself through multilayer of ...
  • A urokinase-activated recombinant anthrax toxin is selectively cytotoxic to many human tumor cell types 
    Abi-Habib, Ralph J.; Singh, Ravibhushan; Liu, Shihui; Bugge, Thomas; Leppla, Stephen H.; Frankel, Arthur (2015-12-01)
    Urokinase plasminogen activator (uPA) is a tumor-specific protease highly expressed in several types of solid tumors and rarely present on normal cells under physiologic conditions. Due to its high expression on metastatic ...
  • A urokinase-activated recombinant diphtheria toxin targeting the granulocyte-macrophage colony-stimulating factor receptor is selectively cytotoxic to human acute myeloid leukemia blasts 
    Abi-Habib, Ralph J.; Lui, Shihui; Bugge, Thomas; Leppla, Stephen H.; Frankel, Arthur (2015-11-30)
    Novel agents to treat acute myeloid leukemia (AML) are needed with increased efficacy and specificity. We have synthesized a dual-specificity fusion toxin DTU2GMCSF composed of the catalytic and translocation domains of ...
  • Ursodiol in Patients with Parenteral Nutrition–Associated Cholestasis 
    Btaiche, Imad F.; San Luis, Valerie A. (2016-10-06)
    OBJECTIVE To review the role of ursodeoxycholic acid (ursodiol) in treating parenteral nutrition–associated cholestasis (PNAC). DATA SOURCES A MEDLINE (1950–May 2007) search was performed using the key terms parenteral ...
  • Urtica dioica extract and its impact on blood lipids, glycemia & inflammation in the rat model. (c2005) 
    Baroudy, Karmen George (Lebanese American University, 2011-10-04)
    The present study evaluates the effects of a one month period of chronic consumption of water and petroleum ether extracts of Urtica dioica on fasted blood lipoprotein profile, sugar level, liver toxicity, stool lipid ...
  • Urtica dioica seed extracts. (c2007) 
    Halabi, Marwan Iskandar (Lebanese American University, 2011-10-17)
    The importance of herbal medicine has grown tremendously over the last few decades. In the present study, aqueous and polyphenol extracts of Urtica Dioica seeds were investigated for their potential role in lipemia, ...