إنتاج بروتين الخلية الأحادية من شرش الجبن بواسطة سلالة خميرة Kluyveromyces marxianus ATCC8554
مقال في مؤتمر علميتم استخدام سلالة خميرة Kluyveromyces marxianus ATCC8554 والتي نميت علي شرش الجبن المتحصل عليه من مصانع الألبان المحلية بمدينة طرابلس - ليبيا. وتم فصل الكازين وبروتينات الشرش بالحموضة والحرارة.وتبين أن أفضل درجة حرارة تحضين لهذه السلالة هي 25 م ، وأعطت السلالة أعلي نمو عند أيون هيدروجين (pH) 4.5. وعندما تنمية السلالة علي شرش منزوع البروتين غير المدعم أعطت مصول كتلة حيوية 4.37 جم/ لتر (0.1118 جم كتلة حيوية / جم لاكتوز)، البروتين الخام 27.43% وكفاءة استهلاك اللاكتوز كانت 95.37% بعد 72 ساعة من بداية التخمر. وجد أن بإضافة 0.5% من كبريتات الأمونيوم، مستخلص الخميرة والببتون، 0.1% من كل منفوسفات البوتاسيوم وكبريتات الماغنيسيوم لوسط الشرش منزوع البروتين، زادت من مصول الكتلة الحيوية إلي 7.37 جم/لتر (0.1882 جم كتلة حيوية/جم لاكتوز)، البوتين الخام 48.07% وكفاءة استهلاك اللاكتوز وصلت إلي 95.61% بعد 72 ساعة من بداية عملية التخمر.
خالد بلاعو، (03-2013)، ليبيا: المؤتمر الوطني السادس للتقنيات الحيوية، 74-79
The Influence of an Extensive Reading Programme on Developing the Reading Comprehension and Other Related Skills of Libyan University Students Learning English as a Major Subject
Journal ArticleThis paper studies the impact of the implementation of
extensive reading programme on the reading comprehension
and the development of other English language skills such as
speaking, spelling and writing of Libyan university students
studying EFL. 50 students studying English in the English
Department, Faculty of Arts, Al-jabal Algharbi University had
read a written materials of their choice, summarised their
main events and completed a self-completion questionnaire.
The findings of the questionnaire data analysis suggested that
the respondents had a positive attitude towards their selfreading,
learned some new words. These findings may encourage the
teachers of reading comprehension courses to implement
extensive reading programme to complement the intensive
reading programme which is practiced in classroom. Also,
reading materials are required to be available in the
educational institutions' libraries.found the information of the written texts useful and
Abdussalam Amar Ahmed Annajeh, (03-2013), ليبيا: 1st English Language Teaching and Learning Conference Effective Approaches to English language Teaching in Libya, 12 (12), 79-106
فكرة الوسطية ودورها في تطوير الفكر الفلسفي الإسلامي
مقال في مجلة علمية0
احمد عيسى سعيد كردي، (03-2013)، جامعة الجبل الغربي: مجلة جامعة الجبل الغربي، 8 (2015)، 107-113
الدين والعقل في مواجهة الاستشراق
رسالة دكتوراة0
احمد عيسى سعيد كردي، (03-2013)، مصر: المكتب المصري الحديث،
ظاهرة المماثلة الصوتية في القرآن
تقرير علميظاهرة المماثلة الصوتية في القرآن
محمد عبد السلام إبراهيم الفقي، (03-2013)، ليبيا: مجلة التبيان،
An Epidemiological Study of Cutaneous Leishmaniasis in Al-Jabal Al-Gharbi, Libya
Journal ArticleCutaneous leishmaniasis (CL) is an endemic parasitic infection in the Mediterranean region, including Libya and
its Al-jabal Al-gharbi province. We aimed at studying the occupational relevance as well as other epidemiological aspects
of CL. We investigated 140 CL cases who attended at Gharyan outpatient polyclinic during a period of 6 months in 2009.
CL infection was clinically diagnosed and confirmed by demonstration of Leishmania parasites on smears from lesions.
Our findings showed that males were more affected than females (P=0.04), and people above 10-years were more affected than younger ones (P=0.0001). A significant percent of CL cases belonged to Al-Kawasem subprovince
(P=0.0001). Farm-related activities were the most frequent occupations among CL cases (P=0.04). In addition to farm
workers, housewives and students are at risk groups since they are engaged at farm activities. Moreover, those who have
occupations that require staying outdoors for a part of night, e.g., policemen, are also at risk. Compared to children, adult
CL patients had multiple lesions (P=0.001) that were more prevalent in their upper and lower extremities than the face
(P=0.0001). We conclude that CL is a major health problem in Al-jabal Al-gharbi province of Libya. The presence of rodents and sandflies makes it a suitable environment for Leishmania to spread in an endemic epidemiological pattern. Being engaged in farming activities or outdoor occupations increases the risk of infection. Various clinical patterns of CL
suggest the presence of more than 1 species of Leishmania at Al-jabal Al-gharbi province. We propose that the 2 species
responsible for CL in this area are L. major and L. tropica. Further investigations to identify the leishmanial species responsible for CL at Al-jabal Al-gharbi together with adoption of preventive and control programs are needed.
Khamees Almabrouk Mohammed Almuseeri, (02-2013), كوريا: المجلة الكورية للطفيليات, 51 (1), 75-84
Pyrimidine salvage in Trypanosoma brucei bloodstream forms and the trypanocidal action of halogenated pyrimidines
Journal ArticleAfrican trypanosomes are capable of both pyrimidine biosynthesis and salvage of preformed pyrimidines from the host. However, uptake of pyrimidines in bloodstream form trypanosomes has not been investigated, making it difficult to judge the relative importance of salvage and synthesis or to design a pyrimidine-based chemotherapy. Detailed characterization of pyrimidine transport activities in bloodstream form Trypanosoma brucei brucei found that these cells express a high-affinity uracil transporter (designated TbU3) that is clearly distinct from the procyclic pyrimidine transporters. This transporter had low affinity for uridine and 2′deoxyuridine and was the sole pyrimidine transporter expressed in these cells. In addition, thymidine was taken up inefficiently through a P1-type nucleoside transporter. Of importance, the anticancer drug 5-fluorouracil was an excellent substrate for TbU3, and several 5-fluoropyrimidine analogs were investigated for uptake and trypanocidal activity; 5F-orotic acid, 5F-2′deoxyuridine displayed activity in the low micromolar range. The metabolism and mode of action of these analogs was determined using metabolomic assessments of T. brucei clonal lines adapted to high levels of these pyrimidine analogs, and of the sensitive parental strains. The analysis showed that 5-fluorouracil is incorporated into a large number of metabolites but likely exerts toxicity through incorporation into RNA. 5F-2′dUrd and 5F-2′dCtd are not incorporated into nucleic acids but act as prodrugs by inhibiting thymidylate synthase as 5F-dUMP. We present the most complete model of pyrimidine salvage in T. brucei to date, supported by genome-wide profiling of the predicted pyrimidine biosynthesis and conversion enzymes.
Juma Ahmed Mohamed Ali, (02-2013), United States of America: Molecular pharmacology, 2 (28), 439-453
Lipase production by Yarrowia lipolytica using olive oil processing wastes as substrates
Journal ArticleIn this study, the solid and liquid wastes from the olive oil processing industry were evaluated as substrates for Yarrowia lipolytica growth with the aim of lipase production. Olive mill wastewater and olive oil cake seemed to provide the necessary nutrients and physical support for yeast growth and enzyme production. The highest lipolytic activity of 850 IU dm(3) was achieved after 4 days of submerged cultivation in supplemented olive mill wastewater. In addition, olive oil cake appeared to be a convenient substrate for lipase production under a solid-state fermentation mode. Lipase production was further improved by media supplementation and/or change in the physical settings of the experiment. However, the most significant improvement of lipase production under solid-state fermentation was achieved by an alkaline treatment of the substrate (more than 10-fold), when the amount of produced lipase reached up to approximate to 40 IU g(-1) of substrate.
Omar Ali Saied Miftah, OMAR A. S. MOFTAH1, SANJA Ž. GRBAVČIĆ2, WALID A. S. MOFTAH3, NEVENA D. LUKOVIĆ1, OLIVERA L. PRODANOVIĆ4#, SONJA M. JAKOVETIĆ1# and ZORICA D. KNEŽEVIĆ-JUGOVIĆ1*, (01-2013), صربيا: Journal of the Serbian Chemical Society,, 78 (6), 781-794
Enhancement of stability and accuracy of the SEDC Motor under the effect of the external disturbances and noise by using FuzzyNeuro Controller
Journal ArticleAbstract: For electrical drives good dynamic performance is mandatory so as to respond to the changes in command speed and torques, so various speed control techniques are being used for real time applications. The speed of a DC motor can be controlled using various controllers like PID Controller, Fuzzy Logic Controller, Particle Swarm Optimization (PSO) and Hybrid Fuzzy-PSO Controller. Fuzzy-PSO Controller is recently getting increasing emphasis in process control applications. The paper describes application of Hybrid Fuzzy-PSO Controller in an enhancement of stability and accuracy of the SEDC Motor under the effect of the external disturbances and noise that uses the Fuzzy-PSO Controller for enhancement of stability and accuracy of the SEDC Motor under the effect of the external disturbances and noise is implemented in MATLAB/SIMULINK. The simulation study indicates the superiority Hybrid FuzzyPSO Controller over the Particle Swarm Optimization (PSO) and fuzzy logic controller separately. This control seems to have a lot of promise in the applications of power electronics. The speed of the SEDC motor can be adjusted to a great extent so as to provide easy control and high performance. There are several conventional and numeric types of controllers intended for controlling the SEDC motor speed and executing various tasks: PID Controller, Fuzzy Logic Controller; or the combination between them: FuzzySwarm, Fuzzy-Neural Networks, Fuzzy-Genetic Algorithm, Fuzzy-Ants Colony, Fuzzy-Particle Swarm Optimization. We describe in this paper the use of Hybrid Fuzzy-PSO Controller for enhancement of stability and accuracy of the SEDC Motor under the effect of the external disturbances and noise We describe in this paper the use of Particle Swarm Optimization (PSO) for designing an optimal fuzzy logic controller of a SEDC Motor. In this case, our approach will optimize the membership functions of a fuzzy logic controller (FLC) using PSO and the obtained results were simulated on Matlab environment.
Keywords: Separately Excited DC Motor (SEDC), Fuzzy Logic Controller (FLC), Particle Swarm Optimization(PSO).
Ahmed Mohammed Alfalah Asmaeil, (01-2013), الهند: https://www.semargroups.org, 1 (2), 18-25
Prevalence of bacterial infection among hospital traumatic patients in relation to ABO blood group
Journal ArticlePrevalence of bacterial infection among hospital traumatic patients in relation to ABO blood group
Background
There are many studies demonstrated a correlation between blood group antigens and susceptibility to infectious diseases such as bacteria, parasites and viruses.
Objectives
To assess the prevalence of bacterial infection among patients in the trauma hospital, and to assess the susceptibility of ABO blood groups to the isolated bacteria.
Methods and Findings
166 samples included, wound swabs, sputum and midstream urine were received for routine culture diagnostic procedures from the in-patients at Abosleem Traumatic Hospital and ABO group was obtained from Blood bank documented system for each patient. A correlation between isolated organisms and ABO system was determined. 51% patients were infected during their stay in the hospital by one of the following isolates: Pseudomonas (22 …
Hiyam Younus Albahlul Aballu, (01-2013), IMedPub: Journal of Biomedical Sciences, 2 (2), 1-4