65 research outputs found

    Pathological studies on postvaccinal reactions of Rift Valley fever in goats

    Get PDF
    <p>Abstract</p> <p>RVF live attenuated vaccine (Smithburn strain) was evaluated by using goats as experimental animal. The results indicate that this vaccine cause severe deleterious pathological changes in liver especially in kids and causing abortion in pregnant does. The virus was seen to be propagated inside hepatic cells forming intranuclear inclusions which was also seen by E.M. Viral antigens were detected in hepatic cells, gall bladder, endothelial lining of blood vessels, leukocytes, kidneys and heart by using immunoflourescent technique. It could be concluded that the use of live attenuated vaccine of RVF (Smithburn strain) for immunization of live stock is not safe in Egypt as it considered an endemic area.</p

    Observations on rift valley fever virus and vaccines in Egypt

    Get PDF
    Rift Valley Fever virus (RVFV, genus: Phlebovirus, family: Bunyaviridae), is an arbovirus which causes significant morbidity and mortality in animals and humans. RVFV was introduced for the first time in Egypt in 1977. In endemic areas, the insect vector control and vaccination is considering appropriate measures if applied properly and the used vaccine is completely safe and the vaccination programs cover all the susceptible animals. Egypt is importing livestock and camels from the African Horn & the Sudan for human consumption. The imported livestock and camels were usually not vaccinated against RVFV. But in rare occasions, the imported livestock were vaccinated but with unknown date of vaccination and the unvaccinated control contacts were unavailable for laboratory investigations. Also, large number of the imported livestock and camels are often escaped slaughtering for breeding which led to the spread of new strains of FMD and the introduction of RVFV from the enzootic African countries. This article provide general picture about the present situation of RVFV in Egypt to help in controlling this important disease

    Understanding Perceived Value of Mobile Payments: A Qualitative Study

    Get PDF
    Mobile payment (MP) applications have long been deemed as a disrupting innovation within the payments landscape given the massive take up of smartphones worldwide. However, realizing such potential can only be achieved through a deep understanding of how consumers perceive value in such innovation. This study employed the perceived value theory to provide an in-depth interpretation of the different determinants of MP value as perceived by current and prospective consumers. A total of 23 interviews have been conducted with both adopters and nonadopters. The findings suggest that the convenience value of MP represents the major value-adding factor for adopters whereas the use of existing contactless card-based payment method represented the main benchmark with which nonadopters negatively valued contactless mobile-based payment methods. These findings provide a profound understanding of the perceived value theory within the context of MP and offer suggestions to MP applications providers

    Investigating at Least One Solution to a Systems of Multi-Points Boundary Value Problems

    Get PDF
    Current article is concerned with the investigating a coupled systems of boundary value problems(BVPs) of fractional order differential equations(FDEs). By means of classical fixed point theorems, we prove the existence and uniqueness of positive solution. We include a numerical problem to verify the investigated results

    Evaluation of Genetic Diversity and Heritability of Some Rapeseed (Brassica Napus) Genotypes Using Agronomical and Molecular Traits

    Full text link
    High level of heritability and variability were estimated for all traits among genotypes. The genetic similarity of nine genotypes Brassica napus was estimated by random amplified polymorphic DNA (RAPD), which ranged from 69% to 94%. The phylogenetic tree resulted in two different clusters; the first including two genotypes which also showed high similarity in agronomic traits and the second included the rest of the genotypes. The genetic diversity was discussed in relation to molecular and agronomical traits. High and positive correlation were recorded for all traits. The high coupled of heritability and variability is considered as a powerful source for the selection of donors in the breeding program, where the genetic gain depends on the availability of genetic variation and high heritability

    The Present Situation of Academic Guidance for New Students in the Palestinian Universities: A Case Study of the Islamic University – Gaza

    Get PDF
    هدفت الدراسة التعرف إلى واقع الإرشاد الأكاديمي لدى الطلبة المستجدين في الجامعات الفلسطينية وسبل تحسينه، وتم تطبيقها في الجامعة الإسلامية بغزة، كدراسة حالة، واستخدم الباحثان المنهج الوصفي التحليلي، واعتماد المقابلة، والاستبانة في جمع المعلومات للدراسة، وعينة الدراسة قوامها (285) طالبًا وطالبة، وكان من نتائجها أن واقع الإرشاد الأكاديمي لدى الطلبة الجدد في الجامعة الإسلامية بغزة وصل إلى درجة كبيرة، وبوزن نسبي (75.80%)، ولا توجد فروق ذات دلالة إحصائية بين متوسطات تقدير أفراد عينة الدراسة لواقع الإرشاد الأكاديمي لدى الطلبة المستجدين في الجامعة الإسلامية بغزة تعزى لمتغير الجنس، باستثناء مجال الإرشاد الاجتماعي، لصالح الطالبات، في حين توجد فروق تعزى لمتغير التخصص، لصالح الطلبة من ذوي التخصص الأدبي، ومتغير المعدل التراكمي، لصالح الطلبة ذوي المعدلات 85% فأعلى باستثناء مجالي الإرشاد الدراسي والإرشاد المهني، فلا توجد فروق، كما قدمت الدراسة مقترحات لتحسين واقع الإرشاد الأكاديمي لدى الطلبة المستجدين في الجامعة الإسلامية. الكلمات المفتاحية: الإرشاد الأكاديمي، الطلبة &nbsp;المستجدون، الجامعة الإسلامية، الجامعات الفلسطينية.The study aimed at assessing the present situation of academic guidance for new students in the Palestinian universities and the ways to improve it. The researchers conducted this study in the Islamic University as a case study. Thus, the researchers followed the analytical descriptive method and used a questionnaire and an interview as tools for data collection. The study sample consisted of (285) students. The main results of the study were as follows: The present situation of the academic guidance for new students in the Islamic University had a high degree with a relative weight (%75.80), and there were no statistically significant differences between the means of the sample ratings on the present situation of the academic guidance for new students in the Islamic University due to gender variable except the dimension of social guidance which was in favor of female students. However, there were statistically significant differences due to major variable for the students of humanities, as well as due to a cumulative mean variable for students who have (85% and more) except for the dimensions of study guidance and vocational guidance. Finally, the researchers presented suggestions to improve the present situation of the academic guidance for new students in the Islamic University. Keywords: academic guidance, the new students, the Islamic University, the Palestinian universitie

    AUSTRIAN SYNDROME: A RARE CASE REPORT

    Get PDF
    Austria

    Preclinical Assessment of the Proliferation Capacity of Gingival and Periodontal Ligament Stem Cells from Diabetic Patients

    Get PDF
    BACKGROUND: Stem cells have recently received great interest as potential therapeutics alternative for a variety of diseases. The oral and maxillofacial region, in particular, encompasses a variety of distinctive mesenchymal (MSC) populations and is characterized by a potent multilineage differentiation capacity.AIM: In this report, we aimed to investigate the effect of diabetes on the proliferation potential of stem cells isolated from controlled diabetic patients (type 2) and healthy individuals.SUBJECTS &amp; METHODS: The proliferation rate of gingival and periodontal derived stem cells isolated from diabetic &amp; healthy individuals were compared using MTT Assay. Expression levels of Survivin in isolated stem cells from all groups were measured by qRt - PCR.RESULTS: There was a significantly positive correlation between proliferation rate and expression of Survivin in all groups which sheds light on the importance of Survivin as a reliable indicator of proliferation. The expression of Survivin further confirmed the proliferation results from MTT Assay where the expression of stem cells from non - diabetic individuals was higher than diabetic patients. Conclusion: Taking together all the results, it could be concluded that PDLSC and GSC are promising candidates for autologous regenerative therapy due to their ease of accessibility in addition to their high proliferative rates

    A Methodology for Investigating Women's Module Choices in Computer Science

    Get PDF
    At ITiCSE 2021, Working Group 3 examined the evidence for teaching practices that broaden participation for women in computing, based on the National Center for Women &amp; Information Technology (NCWIT) Engagement Practices framework. One of the report's recommendations was "Make connections from computing to your students' lives and interests (Make it Matter) but don't assume you know what those interests are; find out! " The goal of this 2023 working group is to find out what interests women students by bringing together data from our institutions on undergraduate module enrollment, seeing how they differ for women and men, and what drives those choices. We will code published module content based on ACM curriculum guidelines and combine these data to build a hierarchical statistical model of factors affecting student choice. This model should be able to tell us how interesting or valuable different topics are to women, and to what extent topic affects choice of module - as opposed to other factors such as the instructor, the timetable, or the mode of assessment. Equipped with this knowledge we can advise departments how to focus curriculum development on areas that are of value to women, and hence work towards making the discipline more inclusive
    corecore