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Search Results: 1 - 10 of 1348 matches for " Jamal Awad "
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Unusual cause of syncopal episodes  [PDF]
Raymond Farah, Rola Khamisy-Farah, Jamal Awad
Open Journal of Internal Medicine (OJIM) , 2012, DOI: 10.4236/ojim.2012.24030
Abstract: We report a 43-year-old man who had been experiencing recurrent attacks of syncope for several years, and a search for the causes behind these lapses in consciousness was fruitless for many years. The patient was admitted to our department of internal medicine because of the symptoms flushing, hypotension and episodes of syncope. After a careful anamnesis and then a comprehensive investigation, we reached the definitive diagnosis of the infrequent disease “systemic mastocytosis”.
Bioremediation of Acetochlor in Soil and Water Systems by Cyanobacterial Mat  [PDF]
Yasser El-Nahhal, Yousef Awad, Jamal Safi
International Journal of Geosciences (IJG) , 2013, DOI: 10.4236/ijg.2013.45082
Abstract:

This study investigated the bioremediation of organic pollution in soil and water systems by cyanobacterial mats collected from Wadi Gaza. Acetochlor, a model compound of herbicide, was used as a standard organic pollutant. Various concentrations of acetochlor were injected in soil and water samples pre-treated with cyanobacterial mat for several periods of time. Percentage of growth of wheat as a test plant was taken as indicator of bioremediation of acetochlor. Results showed that acetochlor was degraded in both soil and water systems. Degradation was much faster in the water system than in the soil system. Concentrations of acetochlor above the field rate did not affect the bioremediation process in the water system whereas it did in soil pots. Furthermore, bioremediation in water system was nearly completed in 15 days whereas it did not reach high percentage in the soil system. These encouraging results are new contribution in field of bioremediation of pesticide by cyanobacterial mats and suggest that application of cyanobacterial mat could be a fast and suitable methodology for bioremediation of organic pollutant in the ecosystem.


Bioremediation of Diuron in Soil Environment: Influence of Cyanobacterial Mat  [PDF]
Jamal Safi, Yousef Awad, Yasser El-Nahhal
American Journal of Plant Sciences (AJPS) , 2014, DOI: 10.4236/ajps.2014.58120
Abstract:

Diuron is a herbicide widely used in the Middle East; its field application creates many environmental problems. This study investigated the bioremediation of Diuron in soil environment by Cyanobacterial mats collected from Gaza Wadi. Various concentrations of Diuron were injected in water saturated soil samples pre-treated with Cyanobacterial mat for several periods. Percent growth of Jews mallow as a test plant was taken as indicator of biodegradation of Diuron. Results showed that Diuron was degraded in soil and degradation was more pronounced when Diuron was incubated with Cyanobacterial in the irrigation water. Larger applied rate of Cyanobacterial mat did not affect the biodegradation of Diuron. These encouraging results suggest that application of Cyanobacterial mat could be a suitable method to remediate soil pollution.

The Clinical Presentations and Patterns of Management of Bowel Obstruction in Northern Saudi Arabia  [PDF]
Abdullah Fahad Al Gharbi, Muhannad Saud A. Al Shammari, Jamal Ahmed A. Al Marshadi, Muteb Nasser Al Awad, Abdulkarim Ali Al Qufayi, Hamoud Khalid Al Shaya, Hussain Gadelkarim Ahmed
Surgical Science (SS) , 2018, DOI: 10.4236/ss.2018.95020
Abstract: Background: The prompt management of patients with bowel obstruction is essential and requires initial rapid diagnosis and therapeutic intervention. Therefore, the objective of the present study was to explore the clinical presentation and pattern of management of bowel obstruction in Northern Saudi Arabia. Methodology: About 92 files referring to patients presented with obstructive bowel conditions during the period from 2013 to 2017 were retrieved from department of surgery at King Khalid Hospital, Hail, Northern Saudi Arabia. Results: Most of cases of bowel obstruction were found in 2014, followed by 2013, 2016, 2015, and 2017 constituting 22, 20, 20, 15, and 15 cases, respectively. About 76, 52, 69, 58, 13, and 28 of the patients presented with pain, constipation, vomiting, abdominal distention, bowel sound and accompanied disease, respectively. Conclusion: Laparotomy was the most common methods of bowel obstruction management in Northern Saudi Arabia. Many patients with bowel obstruction symptoms can improve without surgical intervention.
A Self-Optimization of the Dynamic Resource Management Based on the Cognitive Radio  [PDF]
Jamal Raiyn
Wireless Engineering and Technology (WET) , 2011, DOI: 10.4236/wet.2011.22012
Abstract: This paper describes a novel self-optimized approach for resource management based on the cognitive radio in the cellular networks. The cognitive radio techniques offer several features like autonomy, sensing and negotiation. The use of cognitive radio approach gives greater autonomy to the base stations in the cellular networks. This autonomy allows an increase in flexibility to deal with new situations in the traffic load. The negotiation strategy is used to avoid conflicts in the resource allocation. The goal of the cognitive radio scheme is to achieve a high degree of resource usage and a low rate of call blocking in the cellular systems.
Developing E-society Cognitive Platform Based on the Social Agent E-learning Goal Oriented  [PDF]
Jamal Raiyn
Advances in Internet of Things (AIT) , 2011, DOI: 10.4236/ait.2011.11001
Abstract: In this paper we introduce the e-society cognitive approach based on the social agent. The social Agent is e-learning oriented. The e-society cognitive platform may consider different fields like e-learning, e-health, e-commerce, e-medicine, and e-government. In this paper we will introduce the e-society platform. The e-society platform supports the educational and pedagogical aspects. The e-society is based on the agent technologies. The social agents offer impressive, meaningful and several features as autonomy, manage ne-gotiation, and make decision. The e-society cognitive platform consists of three main layers: social agents, beliefs, and tools for application layer. The goal of the e-society platform is to increase the perceiving of the transportation education in the school.
Spectrum Efficiency Improvement Based on the Cognitive Radio Management  [PDF]
Jamal Raiyn
Int'l J. of Communications, Network and System Sciences (IJCNS) , 2010, DOI: 10.4236/ijcns.2010.33036
Abstract: Interference and delay are considered as the major reasons limiting the capacity and increasing the new call blocking probability in cellular system. In this paper we introduce a novel strategy based on cognitive radio. Cognitive radio is defined as a radio or system that senses its environment and can dynamically and autonomously change its transmitter parameters based on interaction with the environment in which it operates, such as maximize throughput and reduce interference. The goal of the use of cognitive radio is to improve the spectrum efficiency in cellular system. Spectrum management based on radio cognitive plays thereby an important role to increase the capacity of the radio systems and spectrum utilization, especially in the context of open spectrum.
Detection of Objects in Motion—A Survey of Video Surveillance  [PDF]
Jamal Raiyn
Advances in Internet of Things (AIT) , 2013, DOI: 10.4236/ait.2013.34010
Abstract:

Video surveillance system is the most important issue in homeland security field. It is used as a security system because of its ability to track and to detect a particular person. To overcome the lack of the conventional video surveillance system that is based on human perception, we introduce a novel cognitive video surveillance system (CVS) that is based on mobile agents. CVS offers important attributes such as suspect objects detection and smart camera cooperation for people tracking. According to many studies, an agent-based approach is appropriate for distributed systems, since mobile agents can transfer copies of themselves to other servers in the system.

Developing Online Course Based on Interactive Technology Tools  [PDF]
Jamal Raiyn
Advances in Internet of Things (AIT) , 2014, DOI: 10.4236/ait.2014.43003
Abstract:
Many people still believe that good teachers are born and not made. Others believe that good teachers figure out how to teach in their own classrooms. We believe that good teachers can be born again in the digital world. The digital world gives teachers powerful, new ideas, strong content, plentiful pedagogy, and connection to virtual schools in real-time. Furthermore the new kind of e-learning environment gives the teacher a new mission. The new kind of e-learning contributes to producing students who are strong thinkers and novel problem solvers. This paper introduces new learning tools based on cloud computing technologies. Furthermore we present innovative learning tools based on interactive e-learning environment.
Exploring Teaching Training Using Metaphors among Arab Students in Israel  [PDF]
Khawla Zoabi, Yaser Awad
Creative Education (CE) , 2012, DOI: 10.4236/ce.2012.32034
Abstract: Many studies reveal that personal insights and growth can be followed through the study of narratives and metaphors in the field of education. Yet, there is a striking lack of studies in education that analyzes students’ metaphors regarding teacher-training practicum as a continuous process, and there is a lack of such studies in various cultural contexts. This paper describes how Arab teacher-training students described their impressions of their practical experience through personal stories entirely based in metaphoric language. The study was carried out in a multiple case study format, in which the cases are the stories of the students. The stories were written in Arabic the mother tongue of the students. This paper contributed to the body of knowledge available about student teachers’ practical experiences in two ways: first, by providing a detailed understanding of how students perceive their practicum; and second, since knowledge through metaphors can provide direction in structuring training courses for student teaching in accordance with student insights and by addressing their needs, such an understanding will be useful to teachers and instructors and can guide them in providing training that is relevant, rational, and supportive.
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