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Mount Lebanon, Lebanon

Arts, science and Technology University in Lebanon , is an independent and nondenominational Lebanese higher education institution with undergraduate and graduate degree programs.The main campus of the University is in Cola, Beirut. AUL has a branch in Jadra, south of Beirut and four study centers in Sin el Fil, Qalamoun - North Lebanon, Kaslik, and Chtoura. Wikipedia.

Itani J.K.,University of Pau and Pays de lAdour | Itani J.K.,Arts, Sciences and Technology University in Lebanon | Gouarderes E.,University of Pau and Pays de lAdour | Aniorte P.,University of Pau and Pays de lAdour
Proceedings - IEEE 8th International Symposium on Service Oriented System Engineering, SOSE 2014

During the last couple of years, virtual communities (VCs) have gained worldwide popularity and conquer different domains, from business to medicine to aviation to education to entertainment to technology. Service Oriented Architecture (SOA) proves to be a major catalyzer in the creation of software applications due to its rapid development, distributed feature and dynamic adaptability. Mediation systems (MS) on the other hand played a critical role in Service Oriented Computing (SOC) to promote loose coupling between service providers and consumers. Dynamic evolution, monitoring and management of services are critical factors that affect the lifespan of VCs. Moreover, providing the right service to the right user on the right time is an ultimate objective for VCs to achieve. We propose a new model that will serve virtual communities regardless of their types or objectives. The model is built on top of SOA and empowered with MS. © 2014 IEEE. Source

Hanna G.F.,ISL Business Consulting | Saleh Hammoud M.,Arts, Sciences and Technology University in Lebanon | Russo-Converso J.A.,Northcentral University
International Journal of Energy Economics and Policy

Foreign direct investment is new phenomenon to Iraq, a post conflict country with abundance of natural resources. With dominant state-controlled public sector, attracting foreign investment is an added challenge to an economy devastated by years of wars. A qualitative case study was conducted to assess determinants of foreign direct investment in Iraq's energy sector. Data was collected from interviews with business and government subject matter experts, and a review of publically available documents. Lack of security, political instability, corruption, and inadequate government policies towards foreign direct investment as symptoms found and typically shared by other post-conflict countries. The persistence of violence was not seen as a deterrent; however, foreign direct investment activity in the energy sector was virtually limited to the semi-autonomous region of Kurdistan. Investments were either wholly-owned or joint-venture enterprises. Implications to other post conflict countries, using Kuwait and Nigeria as illustrative examples, are presented and recommendations made. Source

Giacoumidis E.,Triangle Engineering | Jarajreh M.A.,Northumbria University | Sygletos S.,Triangle Engineering | Le S.T.,Triangle Engineering | And 7 more authors.
Optics Express

A number of critical issues for dual-polarization single- and multi-band optical orthogonal-frequency division multiplexing (DPSB/ MB-OFDM) signals are analyzed in dispersion compensation fiber (DCF)-free long-haul links. For the first time, different DP crosstalk removal techniques are compared, the maximum transmission-reach is investigated, and the impact of subcarrier number and high-level modulation formats are explored thoroughly. It is shown, for a bit-error-rate (BER) of 10-3, 2000 km of quaternary phase-shift keying (QPSK) DP-MBOFDM transmission is feasible. At high launched optical powers (LOP), maximum-likelihood decoding can extend the LOP of 40 Gb/s QPSK DPSB- OFDM at 2000 km by 1.5 dB compared to zero-forcing. For a 100 Gb/s DP-MB-OFDM system, a high number of subcarriers contribute to improved BER but at the cost of digital signal processing computational complexity, whilst by adapting the cyclic prefix length the BER can be improved for a low number of subcarriers. In addition, when 16-quadrature amplitude modulation (16QAM) is employed the digital-toanalogue/ analogue-to-digital converter (DAC/ADC) bandwidth is relaxed with a degraded BER; while the 'circular' 8QAM is slightly superior to its 'rectangular' form. Finally, the transmission of wavelength-division multiplexing DP-MB-OFDM and single-carrier DP-QPSK is experimentally compared for up to 500 Gb/s showing great potential and similar performance at 1000 km DCF-free G.652 line. © 2014 Optical Society of America. Source

Taki H.,Lebanese University | Taki H.,CNRS Communication and Information Sciences Laboratories | Azou S.,CNRS Communication and Information Sciences Laboratories | Hamie A.,Lebanese University | And 4 more authors.
Optical Fiber Technology

A simple pulse shape randomization scheme is considered in this paper for improving the performance of ultra wide band (UWB) communication systems using On Off Keying (OOK) or pulse position modulation (PPM) formats. The advantage of the proposed scheme, which can be either employed for impulse radio (IR) or for carrier-based systems, is first theoretically studied based on closed-form derivations of power spectral densities. Then, we investigate an application to an IR-UWB over optical fiber system, by utilizing the 4th and 5th orders of Gaussian derivatives. Our approach proves to be effective for 1 Gbps-PPM and 2 Gbps-OOK transmissions, with an advantage in terms of power efficiency for short distances. We also examine the performance for a system employing an in-line Semiconductor Optical Amplifier (SOA) with the view to achieve a reach extension, while limiting the cost and system complexity. © 2016 Elsevier Inc. Source

Keten H.S.,Onikisubat Community Health Center | Onay H.,Arts, Sciences and Technology University in Lebanon | Ersoy O.,Kahramanmaras Sutcu Imam University | Isik O.,Kahramanmaras Sutcu Imam University | And 3 more authors.
Nordic Journal of Psychiatry

Background: The aim of this study was to evaluate adult attention deficit and hyperactivity disorder (ADHD) in smokers, Maras powder users and non-users of tobacco products by using the Adult Attention Deficit and Hyperactivity Disorder Self-report Scale (ASRS). Methods: The study was performed on 446 males presenting to family health centers in Kahramanmara, Turkey. Of 446 participants, 104 were Maras powder users, 133 were smokers and 209 were volunteers not using any tobacco products. Data were collected with a questionnaire composed of questions about socio-demographic features and features of smoking and Maras powder use, and the Fagerström Nicotine Dependence Scale and the ASRS. P < 0.05 was considered significant. Results: The mean age of the participants was 33.94 ± 10.68 years (min = 18, max = 64). There was no significant difference in age between the study groups (P = 0.089). Thirty-one participants (7.0%) received scores higher than the cut-off value (≥ 14 points) for the short form of the ASRS. Twenty-one participants (4.7%) achieverd scores higher than the cut-off value (≥ 44 points) for the ASRS. The smokers received the highest scores of 8.42 ± 3.79 for all the subscales of the short version of the ASRS, 26.87 ± 10.46 for the ASRS, 12.57 ± 6.47 for the attention deficit subscale and 14.30 ± 5.35 for the hyperactivity and impulsivity subscale. Conclusion: Higher rates of the smokers and the Maras powder users had symptoms of ADHD. Considering nicotine may decrease symptoms of ADHD, it can be assumed that the rates of the smokers and Maras powder users with ADHD are higher. © 2015 Informa Healthcare. Source

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