• The impact of caffeine on prostate cancer progression : an in vitro study 

  Saliba, Elisabeth (Notre Dame University-Louaize, 2020-12)

  Prostate cancer (PCa) is the most frequent cancer malignancy among men and the third leading cause of cancer death in the developed world. To date, the exact molecular mechanism underlying the role of caffeine one of the major coffee constituents on PCa prognosis is not yet unraveled. Caffeine has many antioxidant, anti-inflammatory and anti carcinogenic properties through the modulation of certain inflammatory markers such as IL-6 and TNF-α. The present study was carried out to evaluate the effect of caffeine on PCa cell lines viability, namely PC3 and PC3-PSMA and assessing as well their ...
• Algebras with pseudo-Riemannian bilinear forms 

  Abou Ali, Maya (Notre Dame University-Louaize, 2015-01-20)

  The purpose of this dissertation is to study pseudo-Riemannian algebras, which are algebras with pseudo-Riemannian non-degenerate symmetric bilinear forms. The paper([1]), the authors Zhiqi Chen, Ke Liang, and Fuhai Zhu find that pseudo-Riemannian algebras whose left centers are isotropic play a key role and show that the decomposition of pseudo-Riemannian algebras whose left centers are isotropic into indecomposable non-degenerate ideals is unique up to a special automorphism. Furthermore, if the left center equals the center, the orthogonal decomposition of any pseudo-Riemannian algebra into ...
• A comparison between prepare-and-measure and entanglement-based protocols 

  El-Jerdy, Firas François (Notre Dame University-Louaize, 2022-07)

  Quantum key distribution uses special purpose hardware and quantum mechanics to distribute cryptographic keys in a system for its usage in a classical symmetric key scheme for encryption and decryption. There are two appeals for going to such length of creating special hardware and utilizing quantum mechanics to distribute keys over parties. First, detecting eavesdropping on communication due to the fundamental properties of photons governed by quantum mechanics. Second, offering a solution to the byproduct effect of quantum computers breaking the most common asymmetric schemes (Transport Layer ...
• Performance analysis of video transport in two-stage hybrid networks 

  Chelala, Maria Ghosn (Notre Dame University-Louaize, 2006)

  With the current rising trend in wireless based systems, applications such as video on demand, remote monitoring and surveillance are now being used in greater abundance. Coupled with this growth comes the ongoing need for improved network performance. This is due to the resource hungry nature of video data which places stringent requirements on communication networks. This study investigates performance improvement for remote surveillance applications over hybrid 2-stage disordering networks. It specifically focuses on resequencing alternatives for video data. A resequencing and batch aggregation ...
• NFT for game developers 

  Saliba, Charbel (Notre Dame University-Louaize, 2022-07)

  This research aims to validate the viability of implementing NFT mechanics in a video game. It discusses the blockchain technology’s limitations, as well as the many restrictions that NFT forces on game developers. Be it their immutable nature, their high minting cost, or their incapacity of holding big data. It also highlights the restrictions that prevent the interoperability of game assets, and finally, the ludicrous Play-to-earn business model. Two games are also developed, Crypto Forgers and Crypto Run, to further validate the findings presented by this research. While these two games are ...
• Agent negotiation in a virtual marketplace 

  Kahwagi, Roger (Notre Dame University-Louaize, 2007)

  This thesis examines the different type of agents, and how they help evolve the world around, most particularly the way business are undertaken and handled. The following work is based upon the DALIA environment, which stands for Distributed Autonomous and Linguistically Competent Agents. In this work I have extended and improved the DALIA agent negotiation aspect, where two agents are involved in an offer and counter-offer negotiations. The model presented by DALIA for the offers and counter offers ia investigated and the weak points in the negotiation paradigm are identified. A strategy is ...
• Effect of lead bioaccumulation on testicular microanatomy 

  Al Hassanieh, Joelle (Notre Dame University-Louaize, 2022)

  Humans are exposed to a notable variety of toxicants including lead as a heavy metal resulting from occupations and through environmental accumulation as in the Lebanese coastal and freshwaters. It is well established that lead exposure in the workplace contributes to worker infertility and decreased reproductive efficiency. Several reports have reported the detrimental impact toxic effects on human male reproduction by subsiding libido, spermatogenesis, semen quality, hormonal production and regulation, and much more. The objectives of this study were to inspect the effects of ...
• Using simulated annealing and ant-colony optimization algorithms to solve the scheduling problem 

  Chmeit, Nader (Notre Dame University-Louaize, 2012-07)

  The scheduling problem is one of the most challenging problems faced in many different areas of everyday life. This problem can be formulated as a combinatorial optimization problem, and it has been solved with various methods using heuristics and intelligent algorithms. We present in this research an efficient solution to the scheduling problem using two different heuristics namely Simulated Annealing and Ant Colony Optimization. A study comparing the performances of both solutions is described and the results are analyzed.
• Fundamental atmospheric parameters of B stars in the Alpha persei open cluster = Paramètres atmosphériques fondamentaux des étoiles B dans l'amas ouverts Alpha persée 

  Ezzeddine, Rana (Notre Dame University-Louaize, 2012-09)

  It is important to understand stellar evolution as well as the chemical composition and structure of the Galactic disk, in which B stars in open clusters play a major role as they are of the most massive and brightest objects in these clusters. The fundamental atmospheric parameters (Teff, log g) of the B stars in the Alpha Persei open cluster (190pc, 50Myrs) have been determined using the Stromgren uvby-β photometric system, with a calibration technique by Napiwotzki et al. (1993)[65]. The method is based on fitting spectral lines of fundamental stars to synthetic spectra based on Kurucz ...
• A Meta-Analysis of Vaccination Hesitancy : the case of MMR and COVID 19 

  Hajje, Thilda (Notre Dame University-Louaize, 2022)

  Vaccination is a preventive measure to reduce death and morbidity against infectious diseases, and has been applied effectively against most of the viral and bacterial infections around the world. Targeted campaigns against children diseases have been very effective in drastically reducing such diseases thanks to national immunization programs in both developed and developing countries. However, many individuals including parents of various ages are still reluctant to commit to vaccination and some recent fears have been increasing when it comes to vaccination more recently, especially due to ...
• Performance evaluation of roll/RPL protocol in Delay Tolerant Networks (DTN) 

  Sfeir, Elias (Notre Dame University-Louaize, 2012)

  Delay-Tolerant Networks (DTNs) are a type of emerging networks characterized by very long delay paths, frequent network partitions and high loss rates. The nodes are sparsely deployed and intermittently connected. The presenting network is used in a variety of environments including military, disaster situations and for long distance communications. Although it is used in critical sectors, the communication support lacks the high end technology usually found in important networks. The nodes participating in this network do not have stable end-to-end connections. They can communicate to each other ...
• Technology and the current covid-19 

  Simonian, Roy (Notre Dame University-Louaize, 2022)

  The world is witnessing nowadays a virus that spreads in a very fast manner and it has infected a large number of people. Countries rushed to find ways to stop this virus from spreading and to minimize the risks of getting infected. One of these ways was to integrate technology in people’s daily routine to help in containing the virus. In fact, although several countries took a lot of legal measurements and law enforcement to prevent the spread of the virus, such as wearing facial masks, social distancing, using sanitizers and other forms of hygiene supplements, there were always the need to ...
• Affine processes and their applications to financial mathematics 

  Saliba, Elie Fayez (Notre Dame University-Louaize, 2015-07-09)

  In this work we discuss a special kind of stochastic processesX=〖{X_t}〗_(〖t∈R〗_(≥0) ) that are of exceptional interest from both the theoretical ad the applied points of view. These processes are called Affine Processes, and are characterized by the fact that their characteristic function has the form of an exponential of an affine function, i.e. by 〖∅^x〗_X (u) |_t=E^x [e^(<X_(t ),u>) ]=e^(Φ(t,u)+<x,Ψ(t,u)>), Where the exponent Φ(t,u)+ <x,Ψ(t,u)> Is an affine function of its initial state x in the state-space E=〖R^m〗_(≥0)×R^n. The above expectation E^x is the expectation which respect to the ...
• Escaping the echo chamber in movies recommender system 

  El Haddad, Anthony (Notre Dame University-Louaize, 2022-07)

  With the considerable rise of Internet users and the massive and diverse web searches, an excess of data has become available online. A recommendation model, also known as an engine, handles this massive amount of data available to find patterns that reflect user behaviors. Recommendation models have been implemented in several industries, and the most popular implementation is in the entertainment industry, specifically video streaming and on-demand platforms. There are several types of recommendation systems. In this paper, we have proposed a way to escape the loop created by the recommendation ...
• Green synthesis of zero valent Iron nanoparticles using malva extract and their antimicrobial activity 

  Koliana, Rita (2022)

  Green synthesis of metallic nanoparticles has accumulated an ultimate interest over the last decade due to their distinctive properties that make them applicable in various fields of science and technology. Metal nanoparticles that are synthesized by using plants have emerged as nontoxic and ecofriendly. In the current study, the optimal reaction condition for the synthesis of zero valent iron nanoparticles using Malva extract was developed. For the first time, aqueous extract of Malva parviflora was used as a sustainable source of reducing and capping agents to synthesize zero valent iron ...
• Benefits of animated advertisements in today's world 

  Eid, Maria George (Notre Dame University-Louaize, 2022-05)

  There is no doubt that animation is becoming one of the biggest advertising trends and approaches in modern times. No need to wonder why! Simply put, animated advertisement gives us a video that is promotional and entertaining at the same time; leaving the consumer captured by the visuals and animation. With the relevance of animated advertisement in today’s world, this thesis aims to provide a comparative overview of animated vs non-animated advertising. The thesis shall study the “Soul Drops” animated commercial starting from scratch, to the procedures carried on until reaching the result.
• The impact of circadian misalignment and inadequate sleep duration on cardiovascular health in older adults : what can we learn from night shift workers? 

  El Hayek Bou Mansour, Michella (Notre Dame University-Louaize, 2021-12)

  Abrupt work schedules, such as nightshifts, are prevalent nowadays and are known to cause circadian misalignment and sleep disruption which can have adverse health consequences. Among the well documented pathologies among night workers are cardiometabolic impairments, the effects of which appear to be more disruptive in older adults due to their poorer adaptation to night work schedules. The physiological mechanisms by which night shift work and sleep disruption contribute to increased cardiovascular disease (CVD) risk are poorly understood. Furthermore, the potential role of specific CVD ...
• Altered macrophage differentiation and leptin expression in visceral white adipose tissue following chronic sleep restriction in mice 

  Shaabo, Layal (Notre Dame University-Louaize, 2022-05)

  Chronic sleep restriction (CSR) has been implicated in higher risk of insulin resistance (IR) and immune-metabolic dysfunction. No studies investigated the effect of CSR on macrophage differentiation in vWAT in relation to leptin synthesis and glucose homeostasis. Therefore, this study aimed at assessing blood glucose levels and vWAT expression of leptin, CD38, and CD163 following CSR. Adult male C57BL/6 mice were housed under 12:12 L/D cycle (lights on at 0700 hrs) with free access to food. Following a two-week acclimatization period, animals were divided into 2 groups: 1) control (C, N=8) ...
• Unique factorization in quadratic fields 

  Mahfouz, Etienne (Notre Dame University-Louaize, 2013)

  We need the following definitions: An integral domain is a commutative unitary ring with no zero divisors. A principal ideal domain (PID) is an integral domain in which every ideal can be generated by one element. A unique factorization domain (UFD) is an integral domain in which factorization of integers into primes is unique. (more details later). An integral domain R is said to be a Euclidean ring if for every a≠0 in R there is a defined integer d(a) such that: For all a,b € R, both non zero, d(a) ≤d(ab). For all a,b € R, both non zero, there exists t,r € R such that a=tb+r where either r=0 ...
• On-the-fly algorithm for the service composition problem 

  Younes, Ceaser (Notre Dame University-Louaize, 2014)

  Web services are form of middleware to exchange information between systems over a network. With the advent of the age of mobile devices and their diversity, the importance of web services became all the more apparent. Every web service grants certain functionality and can utilize other web services to gain more functionality and more robustness. Such a service that combines the functionality of other services is called a composite service and the process of designing such a service is called a composition. This thesis studies an on-the-fly algorithm that efficiently checks for the possibility ...

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