256 research outputs found
[Mohammed Ali Al-Bassam]
No full textUndated photograph of Mohammed Ali Al-Bassam which is taped to his January 22, 1960, personal and professional data bank form.Mohammed Ali Al-Bassam was born on January 22, 1923, in Baquba, Iraq. He received his M.A (1948) and Ph.D. (1951) in mathematics from the University of Texas. He was offered an associate professor position in Mathematics at Texas Technological College in 1960 and went on leaves of absences from 1964-1967. He resigned in 1967
Design and development of enhanced anti surge control by using smith predictor method / Bassam Ahmed Mohammed Al-Khelly
No full textThe importance of the anti surge control has became highly concern with the rapid increment of using compressors in industrial technology now a days. The applications of the compressors is varying depends on the process and the product ,this research has designed and developed anti surge controller for pneumatic compressors which are widely used in most of the industrial technologies to supply the plants with required compressed air for continues process and most of the process needs a compressed air with pressure of P = 7 bar, the flow is vary from compressor to others and from process to process this research has been concerned on the most used flow which is Q = 15.66 m3/min ,according to the process operation surge will occur when sudden blockage happened or during low demand so the process pressure will increase from 7 bar up to 9 bar before the compressor shutdown because of high vibration that yields from the high pressure most of the anti surge control are either PI or PID control and even that these controllers cannot predict the surge phenomena and the worst is the control valve is opened by 10% to 25% so these controllers has been designed and developed by using Smith predictor method and this enhanced Anti Surge controller has been demonstrated by using MATLAB/Simulink the enhanced Anti surge controller prove of an enhancement faster than normal PI or PID controller the result of the enhanced Anti surge controller reach up to 50% of time needed by the normal PI or PID controller
Keywords: anti surge control, smith predictor method
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Non operative management of blunt bile duct injuries in children.
No full textFrom the Division of Pediatric Surgery, Department of Surgery, (Mallick, Al-Bassam) and the Department of Radiology (Boukai), King Khalid
University Hospital, Riyadh, Kingdom of Saudi Arabia.Bile duct injuries after blunt abdominal trauma are rare in children. This report describes 2 cases of blunt bile duct injuries in children, which were managed non-operatively.
One patient sustained partial tear in the right hepatic duct,
which was managed successfully by passing a stent into the
injured duct during endoscopic retrograde cholangio
pancreatography. The 2nd patient had intrahepatic bile duct
injury associated with liver trauma and was managed with a
drain placed in the sub-hepatic area percutaneously. This
non-operative management in our patients allowed healing
of bile duct injuries without any stricture, at 2 years followup.
Both children are symptom free with normal liver
function tests and normal liver ultrasound. With the
advancement in radiological and endoscopic techniques,
some of the bile duct injuries can be managed
conservatively. Conservative treatment must be
individualized according to the site and extent of injury
Joint statement for the diagnosis, management, and prevention of chronic obstructive pulmonary disease for Gulf Cooperation Council countries and Middle East–North Africa region, 2017
No full textBassam H Mahboub,1,2 Mayank Gian Vats,2 Ashraf Al Zaabi,3 Mohammed Nizam Iqbal,2 Tarek Safwat,4 Fatma Al-Hurish,5 Marc Miravitlles,6 Dave Singh,7 Khaled Asad,8 Salah Zeineldine,9,10 Mohamed S Al Hajjaj11College of Medicine, University of Sharjah, Sharjah, 2Department of Pulmonary Medicine, Rashid Hospital, Dubai Health Authority, Dubai, 3Department of Pulmonary Medicine, Zayed Military Hospital, Abu Dhabi, United Arab Emirates; 4Chest Department, Ain Shams University, Cairo, Egypt; 5Department of Pulmonology and Allergy, Al-Sabah Hospital, Kuwait City, Kuwait; 6Department of Pneumology, Hospital Universitari Vall d’Hebron, Barcelona, Spain; 7Centre for Respiratory Medicine and Allergy, University of Manchester, University Hospital of South Manchester, Manchester, UK; 8Pulmonary and Critical Care, Istishari Hospital, Amman, Jordan; 9Faculty of Medicine, 10Hariri School of Nursing, American University of Beirut, Beirut, Lebanon Abstract: Smoking and subsequent development of COPD is an ever-increasing epidemic in Arabian Gulf and Middle East countries, with no signs of decline. The important fact to be highlighted is that this COPD epidemic of increasing incidence and prevalence is mostly unrecognized by patients, due to the common attribution of symptoms to “smoker’s cough”, and the underdiagnosis and undertreatment by physicians because the common signs and symptoms masquerade as asthma. Consequently, there are long-term adverse effects of missing the diagnosis. The purpose of this review article is to focus upon the status of COPD in Arabian Gulf and Middle East countries, stressing the increasing burden of smoking and COPD, to emphasize the specific factors leading to rise in prevalence of COPD, to bring to light the underdiagnosis and undermanagement of COPD, and to treat COPD in conformity with standard guidelines with local and regional modifications. This review ends with suggestions and recommendations to the health department to formulate policies and to generate awareness among the general public about the side effects of smoking and consequences of COPD. Keywords: COPD, Gulf Cooperation Council countries, Middle East, prevalence of smoking, water pipe, shisha, medwakh, bakhou
العوامل المسببة للاوامر التغييرية في المشاريع الانشائية في قطاع غزة : دراسة حالة المشاريع القطرية
No full textPurpose: Change orders have long been an inherent part of the construction industry around the world and especially in Gaza Strip where construction projects suffers from variation orders. These variation orders are high especially in Qatar projects. This research investigates the main causes of variation order (VO) in worldwide projects through the literature and conclude which of them are affecting locally. Aim and Objectives: The aim of this research is to improve the control on variation order issue to the minimum in construction projects in Gaza Strip. To achieve the aim of this research many objectives exist, these objectives can be summarized as to investigate the factors causing variation order from the literature, extracting real causes of variation order through analyzing a case study of one of the completed projects of Qatar projects, and propose appropriate solutions to decrease the variation orders to minimum as much as possible. Methodology: First, review the literature to extract the causes of variation order around the world and then determine which of them is applicable in Gaza Strip. This was fulfilled using questionnaire and case study. A questionnaire will be developed to assess the perception of owners, consultants, and contractors on the factors causing variation orders in the construction industry in Gaza Strip especially the Qatar projects. Finally, a case study on one of the finished projects of Qatar projects to compare the real causes of VO with the result from analyzing the questionnaire. Results: The most influential factors causing VO are change of schedule by owner, design complexity and difficulty to understand, lack of contractor’s involvement in design, delays in secure site, equipment or materials, and site safety considerations Conclusions: It was concluded that there are some similarities and differences between real data and questionnaire result. The differences between the study and real data is mainly because the study of the completed project has a special nature where this project faced several difficulties such as war and closure of the crossings. Not to forget to mention that the study included two projects (roads and buildings) but the case study included only road project which certainly caused differences in factors causing variation orders between the study and the real data
Novel Concentrated-Light Aging Techniques For High-Temperature And Solar-Energy Materials
No full textMany materials have been synthesized in recent years to provide solutions to the ever so increasing demands of industrial processes, eco-friendly buildings, and optimization of renewable energy systems. During the recent years, significant engineering tests for solar energy products and materials have been developed, however, there is still a deficiency in the understanding and testing when it comes to the degradation effects driven by the combined effect of solar light intensity and exposure duration. Most of the methods developed neglect the need to test small quantities of materials or prototype devices that might operate at close to ambient conditions and need to demonstrate >25 years stability, while still being at the development stage and without the luxury to afford expensive and long (of weeks and months) tests. For example, the multitude of materials that are announced every day for photovoltaic applications, smart windows, and green buildings. The primary objectives of the research project were the development of a solar energy characterization facility and a methodology/apparatus for accelerated aging of materials based on concentrating light with continuous optical characterization and environmental control.
The deliverables were directly aimed to resolve the current deficiencies in the testing methodologies and included; the commissioning and flux characterization of a novel solar characterization facility along with an apparatus and methodology for accelerated aging of materials. Not only did the project deliverables provide an alternative to the current testing procedures, but they also were extremely cost and time-efficient. The completion of the deliverables resulted in an invention which addresses the current technical limitations with testing procedures and offers both a methodology and an apparatus to investigate the light-induced degradation of research or commercial-grade materials by conducting efficiently accelerated aging tests under fully controlled conditions, while continuously collecting the light transmitted through the material to conduct continuous optical characterization. To protect the invention from being reverse engineered, a disclosure document has been submitted to protect the intellectual property (IP)
وعي وموقف المعلمين من اضطراب فرط الحركة ونقص الانتباه في محافظة الخليل
No full textAttention deficit hyperactivity disorder (ADHD) is a neurodevelopmental disorder with a prevalence of 1.5% to 7.2% worldwide. The child with ADHD might experiences symptoms that alter behaviors, and the child becomes hyperactive, hostile, overexcited, impulsive, and inattentive. They could have a short fuse and act out in fits of rage when provoked. They also will lack the maturity of social skills and adaptability. Children with ADHD face unique difficulties in the areas of social and peer interactions, regulation of impulsive behavior and verbal expression, as well as difficulty in keeping on certain tasks and focusing attention. Teachers have a vital role in identifying and supporting children with ADHD in the school settings particularly in the classroom. Teachers can better understand the children needs for attention and behavioral support in the classroom if they engage in frequent, and one-on-one conversations with each student throughout the school day.
Aim: The study aimed to determine the level of knowledge and attitudes of elementary school
teachers toward ADHD in Hebron governorate.
Methodology: A descriptive cross-sectional study design was conducted in 2022, with a sample of 160 teachers that were conveniently recruited for this study. Data was collected by a self-administered questionnaire, that was distributed to the elementary school teachers in Hebron governorate. The questionnaire included personal information of the teachers; in addition to questions about knowledge and attitude of the school educators concerning ADHD among elementary school children in Palestine.
Results: The average knowledge of the respondents about ADHD was 84.25 % of the sample
size. In regard to the teacher’s knowledge about the Signs and symptoms of ADHD, 71% of them have high level of knowledge. Results showed that 61% of the school educators have high level of knowledge regarding general information related to ADHD. Moreover, 82% of the sample size have high level knowledge regarding treatment of ADHD. However, the teacher’s attitude toward ADHD among children was low in which 49.8% of teachers have negative attitude toward the disorder. Results indicated a relationship between the knowledge and attitude of teachers about children with hyperactivity disorder and ADHD, as the value of statistical significance was (.003).
Conclusion: The findings show that teacher’s knowledge of ADHD was not only competent, but much higher than that found in previous studies. In general, attitudes have a pessimistic outlook on working with children who have signs of ADHD. However, teachers who have gotten training on ADHD showed more positive attitudes and in-depth knowledge toward children with ADHD than those teachers who did not got a specialized training. The teacher’s age, years of experience, training, and knowledge, all served as significant predictors of the level of teacher’s knowledge.الخلفية: اضطراب نقص الانتباه / فرط النشاط (ADHD) هو اضطراب في النمو العصبي ينتشر في عينات المجتمع في مرحلة الطفولة ما بين 1.5٪ و7.2٪ في جميع أنحاء العالم. يمكن لأعراض اضطراب فرط الحركة ونقص الانتباه التي يعاني منها الشخص أن تغير سلوكيات الطفل، حيث يكون الطفل مفرط النشاط، وعدائيًا، ومتحمسًا، ومندفعًا، وغافلا. قد يكون لديهم فتيل قصير ويتصرفون في نوبات من الغضب عند استفزازهم. هناك نقص في النضج في المهارات الاجتماعية والقدرة على التكيف. يواجه الأطفال المصابون باضطراب فرط الحركة ونقص الانتباه صعوبات فريدة في مجالات التفاعلات الاجتماعية والأقران، وتنظيم السلوك الاندفاعي والتعبير اللفظي، وصعوبة الحفاظ على المهمة وتركيز الانتباه. يلعب المعلمون دورًا حيويًا في تحديد الطلاب المصابين باضطراب فرط الحركة ونقص الانتباه ودعمهم في الفصل الدراسي. يمكن للمدرسين أن يفهموا بشكل أفضل متطلبات طلابهم من الاهتمام والدعم السلوكي في الفصل الدراسي إذا شاركوا في محادثات فردية متكررة مع كل طالب على مدار اليوم الدراسي
المنهجية: أجريت دراسة وصفية مقطعية في عام 2022 ، مع عينة من 160 معلم تم توظيفهم بشكل ملائم لهذه الدراسة. تم جمع البيانات من خلال ورقة جمع البيانات، والتي تضمنت المعلومات الشخصية للمعلمين ؛ استبيانات المسح التي تم جمعها من عينة المشاركين تصف المعرفة والمعتقدات المتعلقة باضطراب فرط الحركة ونقص الانتباه في فلسطين.
النتائج: كان العدد الأكبر من المدرسين من الذكور (79) مدرسا ، وبلغ متوسط المعرفة 84.25٪ من حجم العينة، 71٪ من حجم العينة لديه مستوى عال من المعرفة فيما يتعلق بالأعراض، 61٪ من العينة لديهم معرفة عالية فيما يتعلق بالمعلومات العامة ، 82٪ من حجم العينة لديهم معرفة عالية المستوى فيما يتعلق بعلاج اضطراب فرط الحركة ونقص الانتباه ، 49.8٪ من المعلمين لديهم موقف سلبي تجاه اضطراب فرط الحركة ونقص الانتباه ، وهناك العلاقة بين معرفة وموقف المعلمين تجاه الأطفال المصابين باضطراب فرط الحركة واضطراب نقص الانتباه وفرط الحركة حيث بلغت قيمة الدلالة الإحصائية (003.).
الخلاصة: اشارت نتائج الدراسة الى ان معرفة المعلمين باضطراب فرط الحركة ونقص الانتباه لم تكن كفؤة فحسب، بل كانت أعلى بكثير من تلك الموجودة في الدراسات والاستطلاعات السابقة لأقرانهم حول المعرفة. بشكل عام، تتمتع المواقف بنظرة تشاؤمية بشأن العمل مع الطلاب الذين يظهرون سلوكيات شبيهة باضطراب فرط الحركة ونقص الانتباه. المعلمون الذين تلقوا تدريبات حول اضطراب فرط الحركة ونقص الانتباه كانت لديهم نظرة أكثر إيجابية للطلاب الذين يعانون من الاضطراب وقد اظهروا معرفة عميقة أكبر حول أفضل طريقة لتعليمهم. اشارت النتائج الى ان عمر المعلم، وسنوات الخبرة، والتدريب، والمعرفة، كلها بمثابة تنبؤات مهمة لنوع معرفة المعلمين
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