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Search Results: 1 - 10 of 331 matches for " Fatin Samara "
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Factors Influencing Students’ Choice of Elective Science Courses: A Case Study from the American University of Sharjah  [PDF]
Fatin Samara
Open Journal of Social Sciences (JSS) , 2015, DOI: 10.4236/jss.2015.38010
Abstract: Scientific studies in higher education are becoming an increasing matter of discussion. The Ameri- can University of Sharjah (AUS) encourages the scientific literacy of students who are not enrolled in science or engineering majors by including two required science courses in the curriculum. The courses of choice include biology, chemistry, environmental sciences, astronomy and physics. This study investigates the factors that contribute to students’ choice when selecting science courses at AUS. A survey comprised of open-ended questions as well as quantitative enquiries was administered to students enrolled in environmental science (ENV 100), aiming to investigate the main reason behind their choice. The results of this two year study showed significantly positive attitudes toward the course contents and the benefit of the course towards their future careers. Furthermore, it reveals that students are highly influenced by previous experiences with subjects, professors’ popularity, peer recommendation, their abilities in memorization, and skills in math. The study reveals that the main concern for students is related to the high amount of information and details that the course content covers. In addition, the possibility of obtaining a higher grade was also studied by observing the grade point average (GPA) for science courses over a period of four years. Nonetheless, the main factor for course choice was their genuine interest for the subject matter, which is this case study, was the environmental studies course.
Aware Diffusion: A Semi-Holistic Routing Protocol for Wireless Sensor Networks  [PDF]
Kamil Samara, Hossein Hosseini
Wireless Sensor Network (WSN) , 2016, DOI: 10.4236/wsn.2016.83004
Abstract: Routing is a challenging task in Wireless Sensor Networks (WSNs) due to the limitation in energy and hardware capabilities in WSN nodes. This challenge prompted researchers to develop routing protocols that satisfy WSNs needs. The main design objectives are reliable delivery, low energy consumption, and prolonging network lifetime. In WSNs, routing is based on local information among neighboring nodes. Routing decisions are made locally; each node will select the next hop without any clue about the other nodes on the path. Although a full knowledge about the network yields better routing, that is not feasible in WSNs due to memory limitation and to the high traffic needed to collect the needed data about all the nodes in the network. As an effort to try to overcome this disadvantage, we are proposing in this paper aware diffusion routing protocol. Aware diffusion follows a semi-holistic approach by collecting data about the available paths and uses these data to enforce healthier paths using machine learning. The data gathering is done by adding a new stage called data collection stage. In this stage, the protocol designer can determine which parameters to collect then use these parameters in enforcing the best path according to certain criteria. In our implementation of this paradigm, we are collecting total energy on the path, lowest energy level on the path, and hop count. Again, the data collected is designer and application specific. The collected data will be used to compare available paths using non-incremental learning, and the outcome will be preferring paths that meet the designer criteria. In our case, healthier and shorter paths are preferred, which will result in less power consumption, higher delivery rate, and longer network life since healthier and fewer nodes will be doing the work.
Some Descriptive Characteristics Concerning Craniometric Measurement in Kangal Dog
Irfan Daskiran,Fatin Cedden
Journal of Animal and Veterinary Advances , 2012,
Abstract: In this study, a total of 38 adult female and male Kangal dogs were used for craniometric measurements. Average facial width was found 13.09±0.202 mm for females, 14.84 ± 0.197 mm for males (p<0.01). Average facial and skull index were found as 122.22±3.709 mm, 55.213±0.984 mm for females, 134.26±3.470 mm and 60.14 ± 1.080 mm for males, respectively. Body weights for females and males were 34.27±0.944 kg and 43.43±1.330 kg. The ratio of skull length to facial width was 1.0:0.55 for females, 1.0:0.60 for males. In conclusion, Kangal dogs can be considered in dolichocephalic group, according to the value of skull length/ facial width ratio.
Gastrointestinal Non-Hodgkin′s lymphoma: A clinico-pathological study
Al-Sayes Fatin
Saudi Journal of Gastroenterology , 2006,
Abstract: Objectives: The aim of this study is to determine the clinico-pathological features of primary gastrointestinal non-Hodgkin′s lymphoma (GI NHL) at King Abdulaziz University Hospital, Jeddah, and to compare our results to those reported in the literature. Materials and Methods: Twenty-three adult patients with primary GI NHL diagnosed over a 5-year period (2000 through 2005) were retrospectively studied clinically and histopathologically. They were classified using the REAL/WHO histopathologic classification. Results: Of the 23 patients with primary GI NHL, 14 (60.9%) were Saudis, with a male-to-female ratio of 1.3:1. The mean age of male patients was 61. 3 years, ranging from 42-83 years with an SD of ±13.09; while for females, the mean age was 64 years, ranging from 50-75 years with an SD of ±9.14. Abdominal pain was the most common presenting symptom (78.3%), and the most common primary site was the stomach (73.9%), followed by the small bowel (13%). The most frequent histologic subtype was the diffuse large B cell lymphoma, accounting for 60.9% of all cases, followed by the marginal-zone cell lymphoma (MALT type), which was Helicobacter pylori associated (39.1%). A large proportion of patients with primary GI NHL had early disease (Stage IE - 20%, Stage IIE - 58.6%). With regards to treatment, 15 patients (65.2%) had chemotherapy, while only 2 patients (8.7%) were treated by Helicobacter pylori eradication. The overall 5-year survival was 47.8%. Conclusion: The data demonstrated that primary GI NHL is more common among males, mainly in their sixth decade. Abdominal pain is the most common presenting symptom, with stomach being the most common involved site. Diffuse large B cell lymphoma is the most frequent histologic subtype, followed by extranodal marginal-zone B cell lymphoma (MALT type), which was Helicobacter-associated. A majority of cases have early disease (stage IE and IIE), mostly treated by combination chemotherapy.
Book Review: Rachel Scott. The Challenge of Political Islam: Non-Muslims and the Egyptian State. Stanford: Stanford University Press, 2010.
Fatin Morris Guirguis
Journal of International and Global Studies , 2011,
Abstract:
Synthesis and antifungal activity of some new pyrido[2,3-d]pyrimidines
Fatin Ismail Hanafy
European Journal of Chemistry , 2011, DOI: 10.5155/eurjchem.2.1.65-69.303
Abstract: Some new pyrido[2,3-d]pyrimidine derivatives (3a-c) were synthesized from 2-amino-5-cyano-6-methoxy-4-(4-methoxyphenyl)pyridine-3-carboxamide. 7-methoxy-5-(4-methoxy phenyl)-4-oxo-2-phenyl-3,4-dihydropyrido[2,3-d]pyrimidine-6-carbonitrile (3b) and 7-met-hoxy-5-(4-methoxyphenyl)-4-oxo-3,4-dihydropyrido[2,3-d]pyrimidine-6-carbonitrile (3c) are used in synthesizing 7a,b, then 8a,b. 7-methoxy-5-(4-methoxyphenyl)-2-methyl-4-oxo-3,4-dihydropyrido[2,3-d]pyrimidine-6-carbonitrile (3a) and 4-hydrazinyl-7-methoxy-5-(4-methoxyphenyl)pyrido[2,3-d]pyrimidine-6-carbonitrile (8b) were condensed with different carbonyl compounds to produce compounds 4, 5, 6 and 9, 10, 11, 12. 3-Methoxy-1-(4-methoxyphenyl)-6-phenyl-7-hydropyridino[2,3-d]1,2,3,4-tetrazolo[1,5-e]pyrimidine-2-carbo-nitrile (13) was synthesized from 8a or 7a. Condensation of 8b with acetophenone to yield 14, which on further reaction gave 15 then 16. 4-Hydrazinyl-7-methoxy-5-(4-methoxyphenyl)-2-phenylpyrido[2,3-d]pyrimidine-6-carbonitrile (8a) also condensed with 4-amino antipyrine giving 17 then 18. Structures of these compounds have been deduced upon the basis of elemental analysis and spectral data. Significant antifungal activities were observed for some of the synthesized compounds.
Which Bit Is Better in Least Significant Bit?  [PDF]
Fatin E. M. Al-Obaidi, Ali Jassim Mohamed Ali
Journal of Information Security (JIS) , 2015, DOI: 10.4236/jis.2015.63017
Abstract: The weakness of Human Auditory System (HAS) led the audio steganography process to be used in hiding data in the digital sound. Audio steganography is implemented here by using Least Significant Bit (LSB) algorithm to hide message into multiple audio files. This is achieved by 1st, 2nd, 3rd, and 4th bits hiding ratios. In comparison to other used bits, hiding results show that the use of 1st bit in LSB method for embedding data is much better than those used bits as expected. In addition to that and according to the results, file’s size affects strongly upon the effectiveness of the embedding process while hiding starting position doesn’t affect upon the variation of the adopted statistical estimators regardless to which bit is used. Among the statistical estimators that have been adopted here, the Mean Absolute Error (MAE) seems to be the best one in testing hiding process.
Sundarban as a Buffer against Storm Surge Flooding  [PDF]
Mohiuddin Sakib, Fatin Nihal, Anisul Haque, Munsur Rahman, Mansur Ali
World Journal of Engineering and Technology (WJET) , 2015, DOI: 10.4236/wjet.2015.33C009
Abstract:

Sundarban, the largest mangrove forest in the world, is known to act as a buffer against the cyclone and storm surge. Theoretically, Sundarban absorbs the initial thrust of the wind and acts to “resist” the storm surge flooding. The role of Sundarban was evident during the cyclone Sidr when the Sundarban solely defended the initial thrust of the cyclonic wind and the resulting storm surge inundation. In doing this, Sundarban sacrificed 30% of its plant habitats. Although no scientific study has yet been conducted, it is generally believed that Sundarban will continuously play its role as a buffer against the cyclone when landfall of the cyclone is at or close to the Sundarban. Considering these facts, the present study mainly focused on a scientific insight into the role of Sundarban as a buffer against the present-day cyclone and storm surge and also its probable role on the impacts of future storms of similar nature but with different landfall locations. The Delft 3D dashboard and flow model are applied to compute the resulting inundation due to cyclone induced storm surge. The results show that Sundarban indeed acts as a buffer against the storm surge inundation when cyclone landfall is at or close to Sundarban.

OPTIONS FOR THE ASSESSMENT OF ITEMS OF FINANCIAL STATEMENTS AT NATIONAL, EUROPEAN AND INTERNATIONAL LEVEL
SILVIA SAMARA
Annals of the University of Petrosani : Economics , 2010,
Abstract: The main purpose of evaluation is to determine the financial position and the outcome of the entity’s activity. With the intensification of the phenomena of globalization of economies and financial markets and the emergence of phenomena such as inflation, it began to be more often used the assessment based on the current value and, in particular, on the fair value. The users of the financial statements must always be taken into when selecting a basis of evaluation. Internationally, we can observe the tendency that, by the use of a certain bases of evaluation, to respond favourably to the needs of a various range of users; a balance must be assured between the relevance of the information (their usefulness in decision-making) and their reliability (their objectivity).
CERTIFICATE REVOCATION MANAGEMENT IN VANET
Ghassan Samara
International Journal of Cyber-Security and Digital Forensics , 2012,
Abstract: Vehicular Ad hoc Network security is one of the hottest topics of research in the field of network security. One of the ultimate goals in the design of such networking is to resist various malicious abuses and security attacks. In this research new security mechanism is proposed to reduce the channel load resulted from frequent warning broadcasting happened in the adversary discovery process a€“ Accusation Report (AR) - which produces a heavy channel load from all the vehicles in the road to report about any new adversary disovery. Furthermore, this mechanism will replace the Certificate Revocation List (CRL), which cause long delay and high load on the channel with Local Revocation List (LRL) which will make it fast and easy in the adversary discovery process.
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