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School of Arts and Sciences: Recent submissions

  • Whole-genome comparative analysis of carbapenem-resistant Escherichia coli isolated from hospitalized patients in Lebanon. (c2016) 
    Dagher, Christel C.; MS in Molecular Biology; SAS; 201100165; Khalaf, Roy; Nawas, Tarek; Natural Sciences; Tokajian, Sima; christel.dagher@lau.edu; Lebanese American University (Lebanese American University, )
    Antibiotic resistant bacteria that are challenging and nearly impossible to treat are becoming more prevalent and this is resulting in an urgent public health concern. The horizontal gene transfer of antibiotic resistance ...
  • Solving polynomial inequalities with GeoGebra. (c2017) 
    Tarraf, Hussein; MA in Education; SAS; 201000384; Habre, Samer; Nabhani, Mona; Education; Osta, Iman; hussein.tarraf@lau.edu; Lebanese American University (Lebanese American University, )
    „Polynomial inequalities‟- a particular form of „Inequalities‟- is an important topic that interweaves with most mathematical topics. Polynomial inequalities are treated by the Lebanese curriculum as a purely algebraic and ...
  • Text-based framework for spam detection in Twitter. (c2017) 
    Halawi, Bahia M.; MS in Computer Science; SAS; 200903423; Otork, Hadi; Hamdan, May; Computer Science and Mathematics; Mourad, Azzam; bahia.halawi@lau.edu.lb; Lebanese American University (Lebanese American University, )
    Due to the inevitable popularity of twitter, as well as its ability to transport messages into sparse communities, spammers tend to take twitter for granted in spreading their commercial messages. Moreover, different ...
  • Origins of Arabic theatre. (c2017) 
    Teeny, Mira; MA in Comparative Literature; SAS; 201206340; Saab, Nada; Behmardi, Vahid; English; Aercke, Kristian; mira.teeny@lau.edu.lb; Lebanese American University (Lebanese American University, )
    This comparative study explores the origin of Arabic theatre and its development vis-àvis European theatre. Chapter 1, the Introduction, states the problem and reviews the literature. Chapter 2 observes the contradictory ...
  • The role of the Arab League and the European Union as regional security organizations. (c2017) 
    Diez, Pedro Martinez; MA in International Affairs; SAS; 201408667; Baroudi, Sami; Ouaiss, Jennifer Skulte; Social Sciences; Salamey, Imad; pedro.martinezdiez@lau.edu; Lebanese American University (Lebanese American University, )
    Regionalism has been gaining relevance as a decisive factor shaping national security. Using mechanisms and initiatives provided by regional alliances, states have found in regionalism a means ...
  • A novel mobile and vehicular Ad Hoc cloud framework for intursion detection. (c2017) 
    Dbouk, Toufic H; MS in Computer Science; SAS; 201005361; Otork, Hadi; Habre, Samer; Computer Science and Mathematics; Mourad, Azzam; toufic.dbouk@lau.edu.lb; Lebanese American University (Lebanese American University, )
    As the usage of smart-devices is increasing, security threats affecting the confidentiality, integrity, and privacy of such devices are briskly emerging due to the rapid growth of malware. Mobile security suites exist ...
  • On-demand mobile sensing framework for traffic monitoring. (c2017) 
    Abdul Rahman, Sawsan; MS in Computer Science; SAS; 201401206; Haraty, Ramzi; Touma, Rony; Computer Science and Mathematics; Mourad, Azzam; sawsan.abdulrahman@lau.edu; Lebanese American University (Lebanese American University, )
    With the increased need for mobility and the overcrowding of cities, the area of Intelligent Transportation aims at improving the efficiency, safety, and productivity of transportation systems by relying on communication ...
  • Taming the insurgent city 
    Halkort, Monika; PHD; SAS; 201306477; Communication Arts; monika.halkort@lau.edu.lb; Lebanese American University (Queen's University Belfast, )
    This thesis discusses the computer databases and Geographic Information Systems (G IS) as political technologies in the reconstruction of Nahr el Bared, a Palestinian Refugee Camp in North Lebanon. The camp has been ...
  • Liquefying social capital 
    Halkort, Monika; SAS; 201306477; Communication Arts; monika.halkort@lau.edu.lb; Lebanese American University
    This article discusses the biopolitical dimension of digital circula- tion in the specific context of refugee relief. Drawing up on observational fieldwork conducted in Nahr el Bared, one of the largest Palestinian ...
  • Dissecting the signaling pathways regulating the vascular endothelial growth factor (VEGF) in brain tumor cells. (c2017) 
    Nicolas, Samer Michel; MS in Molecular Biology; SAS; 200300825; Daher, Costantine; Abi Habib, Ralph; Natural Sciences; El Sibai, Mirvat; samer.nicolas@lau.edu; Lebanese American University (Lebanese American University, )
    Angiogenesis, the fabrication of neo-blood vessels (capillaries), is one of the major hallmarks of cancer and is one of the underlying mechanisms for the tumor’s aggressiveness and metastasis. When faced with hypoxic ...
  • Homogeneous photocatalytic H2 production using a RuII bathophenanthroline metal-to-ligand charge-transfer photosensitizer 
    Khanyzer, Rony S.; Olaiya, Babatunde S.; El Roz, Karim A.; Castellano, Felix N.; SAS; 200501196; Natural Sciences; rony.khnayzer@lau.edu.lb; Lebanese American University
    The prototypical [Ru(bpy)3]2+ (bpy=2,2′-bipyridine) photosensitizer has been previously demonstrated to be labile in aqueous photocatalytic solutions, especially in the presence of coordinating electron donors. Here, an ...
  • Photocatalytic water splitting 
    Khnayzer, Rony S.; PHD; SAS; 200501196; Natural Sciences; rony.khnayzer@lau.edu.lb; Lebanese American University (Graduate College of Bowling Green, )
    Felix N. Castellano, Advisor Due to the expected increases on energy demand in the near future, the development of new catalytic molecular compositions and materials capable of directly converting water, with the aid ...
  • Upconversion-powered photoelectrochemistry 
    Khnayzer, Rony S.; Blumhoff, Jorg; Harrigton, Jordan A.; Haefle, Alexandre; Deng, Fan; Castellano, Felix N.; SAS; 200501196; Natural Sciences; rony.khnayzer@lau.edu.lb; Lebanese American University
    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 ...
  • Enhanced photophysics from self-assembled cyclometalated Ir (III) complexes in water 
    Khnayzer, Rony S.; Castellano, Felix N.; McGooty, Michelle M.; SAS; 200501196; Natural Sciences; rony.khnayzer@lau.edu.lb; Lebanese American University
    Two water-soluble anionic cyclometalated Ir(III) complexes, Ir(ppy)2BPS [1] and Ir(F-mppy)2BPS [2] have been synthesized and display clear evidence of self-assembly in water. Concentration-induced aggregation enhances the ...
  • Toward organic photohydrides 
    Khnayzer, Rony S.; Vyas, Shubham; Ling Luk, Hoi; Walpita, Janitha; Zhou, Dapeng; Yang, Xin; SAS; 200501196; Natural Sciences; rony.khnayzer@lau.edu.lb; Lebanese American University
    The excited-state hydride release from 10-methyl-9-phenyl-9,10-dihydroacridine (PhAcrH) was investigated using steady-state and time-resolved UV/vis absorption spectroscopy. Upon excitation, PhAcrH is oxidized to the ...
  • Phototoxicity of strained Ru(II) complexes 
    Khnayzer, Rony S.; Abi-Habib, Ralph; El-Sibai, Mirvat; Azar, Daniel F.; Farhat, Stephanie; Audi, Hassib; SAS; 200501196; 200901419; 200703859; Natural Sciences; rony.khnayzer@lau.edu.lb; ralph.abihabib@lau.edu.lb; mirvat.elsibai@lau.edu.lb; Lebanese American University
    A photochemically dissociating ligand in Ru(bpy)2(dmphen)Cl2 [bpy = 2,2′-bipyridine; dmphen = 2,9-dimethyl-1,10-phenanthroline] was found to be more cytotoxic on the ML-2 Acute Myeloid Leukemia cell line than Ru(bpy)2(H2O)22+ ...
  • Diarylpyrenes vs. diaryltetrahydropyrenes 
    Khnayzer, Rony S.; Wex, Brigitte; Fonari, Alexandr; El-Ballouli, Alaa O.; Castellano, Felix N.; Khalife, Jihane C.; Hallal, Kassem M.; Digambara, Kassem M.; SAS; 200501196; 200603698; Natural Sciences; rony.khnayzer@lau.edu.lb; brigitte.wex@lau.edu.lb; Lebanese American University
    The synthesis of two series of substituted 2,7-diaryl-4,5,9,10-tetrahydropyrenes (1a–c) and 2,7-diarylpyrenes (2a–c) is reported; the opposing phenyl tips being terminated with tBu (a), OCH3 (b), or F (c) to impart variation ...
  • Photocatalytic activity of core/shell semiconductor nanocrystals beaturing spatial separation of charges 
    Khnayzer, Rony S.; Lorek, Ryan; Perera, Dimuthu; Moroz, Pavel; Khon, Dimitry; O'Connor, Timothy; Kinder, Erich; Diedrich, Geoffrey; SAS; 200501196; Natural Sciences; rony.khnayzer@lau.edu.lb; Lebanese American University
    The present study investigates the photocatalytic activity of ZnSe/CdS core/shell semiconductor nanocrystals. These nanoparticles exhibit a spatial separation of photoinduced charges between the core and the shell domains, ...
  • Sensing of 2,4,6-trinitrotoluene (TNT) and 2,4-dinitrotoluene (2,4-DNT) in the solid state with photoluminescent RuII and IrIII complexes 
    Khnayzer, Rony S.; Mosca, Lorenzo; Lazorski, Megan S.; Danilov, Evgeny O.; Castellano, Felix N.; SAS; 200501196; Natural Sciences; rony.khnayzer@lau.edu.lb; Lebanese American University
    A series of metal–organic chromophores containing RuII or IrIII were studied for the luminometric detection of nitroaromatic compounds, including trinitrotoluene (TNT). These complexes display long-lived, intense ...
  • Heteroepitaxial growth of colloidal nanocrystals onto substrate films via hot-injection routes 
    Khnayzer, Rony S.; Acharya, Krishna P.; Khon, Elena; O'Conner, Timothy; SAS; 200501196; Natural Sciences; rony.khnayzer@lau.edu.lb; Lebanese American University
    Hot-injection synthesis of colloidal nanocrystals (NCs) in a substrate-bound form is demonstrated. We show that polycrystalline films submerged into hot organic solvents can nucleate the heteroepitaxial growth of semiconductor ...

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