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Beirut, Lebanon

Beirut Arab University is a Lebanese private university located in Beirut, Lebanon. It was founded by the Lebanese El-Bir and Ihsan Society in 1960. The university is officially accredited according to article of the Lebanese Higher Education Law issued on 26 December 1961.Beirut Arab University is a member of:Association of Arab Universities International Association of Universities Federation of the Universities of the Islamic World Agence Universitaire de la Francophonie :Conférence des Recteurs de la Région du Moyen-OrientRéseau International Francophone des établissements de formation de formateurs Ecole Doctorale de Droit du Moyen- Orient Collège Doctoral de Français au Moyen Orient International Association of University Presidents Association of Universities of LebanonEuro- Mediterranean University Euromed Permanent University Forum International Council for Open and Distance EducationInternational Federation of Library Associations and InstitutionsArab Association of Collegiate Registrars& Admissions Officers Association of the Arab Faculties of Dentistry Scientific Association of Colleges of Pharmacy in the Arab World Arab Society of Faculties of Business Administration Union of International Associations Scientific Society of Arab Nursing Faculties Islamic Universities LeagueUnited Nations Global CompactAssociation for Dental Education in Europe Arab Forum for Environment and Development Lebanese Academic Library Consortium European Foundation for Management and Development ↑ Wikipedia.

Objective: The aim of this study was to investigate the effect of Nigella sativa and thymoquinone (TQ) on oxidative stress, cyclooxygenase-2 (COX-2), and intracellular adhesion molecule-1 mRNA expression in the pancreas of streptozotocin (STZ)-induced diabetic rats as a model of type 1 diabetes. Methods: Five experimental groups including control group, STZ-induced diabetic group, aqueous extract diabetic treated group, oil diabetic treated group, and TQ diabetic treated group were used to obtain the pancreatic tissue samples and serum for investigation. Results: A significant increase in COX-2 mRNA expression was detected in STZ-induced diabetic group after 10 days of diabetes induction indicating an important role of the enzyme COX-2 in the inflammation accompanying STZ diabetes in contrast to that detected for intracellular adhesion molecule-1. Treatment of STZ diabetic rats with N. sativa aqueous extract and TQ significantly suppressed the expression of COX-2 enzyme in the pancreatic tissue. Nigella sativa and TQ treatment also suppressed pancreatic tissue lipid peroxidation malon-dialdehyde levels and increased the level of superoxide dismutase antioxidant enzyme correlated with the decrease in COX-2 mRNA expression. Conclusions: Results obtained in this study support a potential role for N. sativa and TQ in ameliorating inflammation during diabetes and preserving A cells. Copyright © 2013 by Lippincott Williams & Wilkins.

Ibrahim Mohareb N.,Beirut Arab University
Proceedings of the Institution of Civil Engineers: Urban Design and Planning | Year: 2011

In evacuation scenarios, assuming evacuees' potential location before a hazard situation is an initial step for any simulation model. This initial step is crucial in analysing evacuation in urban open spaces, which is a less controllable environment than enclosed spaces, such as analysing evacuation inside buildings. There are problems with conventional models dealing with evacuation in urban spaces. They start with a random distribution of evacuees or give an equal distribution to their location with speculated weighting factor for specific exits. Moreover, these models focus on the hazard area without appropriate consideration to the surrounding context that affects the evacuation process. Their simulation outcomes give an erroneous result that would affect the decision-maker's actions in real evacuation conditions. The paper examines an alternative starting point to analyse evacuation models in urban open spaces. It verifies evacuees' potential location before starting the simulation scenarios based on accessibility analysis. A space syntax geographic information system and field survey are used as triangulation methods for analysing the evacuees' potential location and movements in urban spaces surrounding the hazard place. United Arab Emirates university campus (Islamic Institute) in Al-Ain city is used as a case study for applying the paper's suggested methods.

Abdel-Rahman A.,Beirut Arab University
WSEAS Transactions on Fluid Mechanics | Year: 2010

On the basis of available knowledge, it is shown that different mechanisms may have control in different jet flows or in different regions of a jet flow. In free jet flows, the downstream region is dominated by turbulence structure whereas coherent eddy-structure can have a strong influence on the near field, particularly for low-Reynolds number jet flows. At present, however, it has become a common belief that coherent-eddy structures determine, to a large degree, the evolution and dynamics of turbulent jet flows. The following article is an attempt to review the current information on round turbulent jet flows. In so doing, the influence of the jet origin (initial conditions) and the boundary conditions (presence or absence of endplate, side walls, and/or jet enclosure) on the jet flow structure is considered.

El-Dakdouki M.H.,Michigan State University | Pure E.,Wistar Institute | Pure E.,Beirut Arab University | Huang X.,Michigan State University
Nanoscale | Year: 2013

We report that receptor mediated transcytosis can be utilized to facilitate tumor penetration by drug loaded nanoparticles (NPs). We synthesized hyaluronan (HA) coated silica nanoparticles (SNPs) containing a highly fluorescent core to target CD44 expressed on the cancer cell surface. Although prior studies have primarily focused on CD44 mediated endocytosis to facilitate cellular uptake of HA-NPs by cancer cells, we discovered that, once internalized, the HA-SNPs could be transported out of the cells with their cargo. The exported NPs could be taken up by neighboring cells. This enabled the HA-SNPs to penetrate deeper inside tumors and reach a much greater number of tumor cells in 3D tumor models, presumably through tandem cycles of CD44 mediated endocytosis and exocytosis. When doxorubicin (DOX) was loaded onto the NPs, better penetration of multilayered tumor cells was observed with much improved cytotoxicities against both drug sensitive and drug resistant cancer spheroids compared to the free drug. Thus, targeting receptors such as CD44 that can readily undergo recycling between the cell surface and interior of the cells can become a useful strategy to enhance the tumor penetration potential of NPs and the efficiency of drug delivery through receptor mediated transcytosis. © 2013 The Royal Society of Chemistry.

El Arwadi T.,Beirut Arab University
Numerical Functional Analysis and Optimization | Year: 2012

In 1996, Nachman introduced the D-bar method to reconstruct a planar conductivity from the electrical measurements at the boundary. His method consists of two steps: 1) using the boundary data to calculate the scattering transform (this is severely ill-posed) and 2) computing the conductivity by solving a -equation in the frequency space and evaluate at zero frequency. Siltanen et al. propose to replace step 1 by the (well-posed) calculation of some approximate scattering transforms. In this article, we prove estimates (at large frequency) of these approximate scattering transforms and study the error in the reconstructed conductivity when using them. Copyright © Taylor & Francis Group, LLC.

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