Qassim University is a public university in the Al-Qassim Province of Saudi Arabia. It was established in 2004 jointly between King Saud University and Imam Muhammad ibn Saud Islamic University, each of which used it as its Qassim campus. Subsequently, its constituent colleges became a part of Qassim University. The main campus of Qassim University covers about eight square kilometers and is situated between Buraydah and Unaizah in the heart of the region. There are campuses in different cities in Al-Qassim Province. During 2008, enrollment at Qassim University was 40,000 students. Faculty and staff totaled 3,500.Colleges at Qassim University include Sharia College; the College of Arabic Language and Social science; the College of Agricultural and Veterinary science; a College of Economics; a College of Science; a College of Medicine; a College of Engineering; a College of Computer Science; a College of Applied Medical science; a College of Dentistry and a College of Pharmacy.There is also a Science College in Al-Zilfi, community colleges and women's colleges. Wikipedia.
Alghasham A.A.,Qassim University
Medical Teacher | Year: 2012
Introduction: Since problem-based learning (PBL) sessions require a combination of active discussion, group interaction, and inductive and reflective thinking, students with different learning styles can be expected to perform differently in the PBL sessions. Methodology: Using "Learning Style Inventory Questionnaire," students were divided into separate active and reflective learner groups. Tutors were asked to observe and assess the students' behavioral performance during the PBL sessions for a period of 5 weeks. A questionnaire of 24 items was developed to assess students' behavioral performance in PBL sessions. Results: Active students tended to use multiple activities to obtain the needed information were more adjusted to the group norms and regulation and more skillful in using reasoning and problem-solving skills and in participation in discussion. On the other hand, reflective students used independent study more, listened actively and carefully to others and used previously acquired information in the discussion more frequently. Formative assessment quizzes did not indicate better performance of either group. There were no significant gender differences in PBL behavioral performance or quizzes' scores. Conclusion: Active and reflective learners differ in PBL class behavioral performance but not in the formative assessment. We recommend that students should be informed about their learning style and that they should learn strategies to compensate for any lacks in PBL sessions through self-study. Also, educational planners should ensure an adequate mix of students with different learning styles in the PBL groups to achieve PBL desired objectives. © 2012 Informa UK Ltd. All rights reserved.
Mati Y.,Qassim University
Computers and Industrial Engineering | Year: 2010
This paper addresses the makespan minimization in a job-shop environment where the machines are not available during the whole planning horizon. The disjunctive graph model is used to represent the schedules and the concept of blocks is generalized to include the unavailability periods of machines. To solve the problem, we develop a taboo thresholding heuristic that uses a new block-based neighborhood function. Some sufficient conditions to eliminate the evaluation of non-improving moves are proposed. Experiments performed on existing problem instances of the literature show the efficiency of the proposed heuristic. © 2010 Elsevier Ltd. All rights reserved.
Alzolibani A.A.,Qassim University
Acta Dermatovenerologica Alpina, Pannonica et Adriatica | Year: 2011
Alopecia areata (AA) is a common, chronic, inflammatory disease resulting in an unpredictable, non-scarring form of hair loss. It affects almost 0.1% of the general population. Although the cause of AA is poorly understood, it is hypothesized to have an autoimmune etiology. Supporting this theory is the fact that activated CD4 and CD8 T lymphocytes have been found in characteristic perifollicular and intrafollicular inflammatory infiltrates of affected individuals' anagen hair follicles. AA provides an excellent opportunity to study the role of immunogenetics. In fact, various genes that have a role in regulating immunity have also been associated with susceptibility to AA. Several reports have indicated a significant association between AA and certain human leukocyte antigens (HLA) genes such as HLA-DRB1*0401 and DQB1*. This review provides an overview of current knowledge about the molecular genetics of AA. The literature review has shown overlapping gene patterns suggestive of common pathogenic mechanisms. However, many questions remain unanswered because data about local gene expression patterns in affected tissues are still scarce.
Tanvir Parvez M.,Qassim University |
Mahmoud S.A.,King Fahd University of Petroleum and Minerals
Pattern Recognition | Year: 2013
In this paper, we present research results on off-line Arabic handwriting recognition using structural techniques. Statistical methods have been more common in the reported research on Arabic handwriting recognition. Structural methods have remained largely unexplored in this regard. However, both statistical and structural techniques can be effectively integrated in multi-classifier based systems. This paper presents, to our knowledge, the first integrated offline Arabic handwritten text recognition system based on structural techniques. In implementing the system, several novel algorithms and techniques for structural recognition of Arabic handwriting are introduced. An Arabic text line is segmented into words/sub-words and dots are extracted. An adaptive slant correction algorithm that is able to correct the different slant angles of the different components of a text line is presented. A novel segmentation algorithm, which is integrated into the recognition phase, is designed based on the nature of Arabic writing and utilizes a polygonal approximation algorithm. This is followed by Arabic character modeling by 'fuzzy' polygons and later recognized using a novel fuzzy polygon matching algorithm. Dynamic programming is used to select best hypotheses of a sequence of recognized characters for each word/sub-word. In addition, several other key ideas, namely prototype selection using set-medians, lexicon reduction using dot-descriptors etc. are utilized to design a robust handwriting recognition system. Results are reported on the benchmarking IfN/ENIT database of Tunisian city names which indicate the robustness and the effectiveness of our system. The recognition rates are comparable to multi-classifier implementations and better than single classifier systems. © 2012 Elsevier Ltd All rights reserved.
Gasim G.I.,Qassim University
Arab Journal of Gastroenterology | Year: 2013
The epidemiology of viral hepatitis is of great importance for planning and managing health provision for all the countries in the Arab world. However, data on viral hepatitis are not readily available in a large percentage of Arab countries. Hepatitis B virus (HBV) is considered to be one of the most important causes of chronic hepatitis, cirrhosis and hepatocellular carcinoma. A systematic electronic search of published literature was conducted to extract data on epidemiology and risk factors for the analysis of HBV infection among the countries in the Arab world.The prevalence of chronic HBV infection was found to be decreasing in some Arab countries although it was still unacceptably high. This was particularly evident in the Arabian Gulf region, in Lebanon, Egypt and Libya. The age-specific prevalence varied from country to country with decline in prevalence being noted among children in the Gulf States and among Libyan women. These declines in prevalence are most likely to be related to the Expanded Immunization Programme.The alarmingly high prevalence of chronically infected patients in some areas and the widespread differences in HBV prevalence between Arab nations may be explained by the variation in risk factors involved. This situation calls for targeted approaches to tackle HBV-related mortality and morbidity. Precise HBV infection prevalence data are needed at the national and the sub-national level to estimate the disease burden, guide health intervention programmes and evaluate vaccine efficiency. © 2013 Arab Journal of Gastroenterology.