مستودع جامعة الشيخ عبدالله البدري

Elsheikh Abdallah Elbadri University Repository

This repository collects, preserves and shares the university's scholarly output: theses and dissertations, scientific papers, lecture materials, examination archives, staff CVs and announcements. Use the search box at the top, or browse the collections listed below.

يضم المستودع الرسائل العلمية والأوراق البحثية والمحاضرات وأرشيف الامتحانات وإنتاج أعضاء هيئة التدريس. استخدم مربع البحث في الأعلى أو تصفح المجموعات أدناه.

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    The Potential Effect of Henna (Stone Dye) Extract Paraphenylenediamine on Human Blood Cells, Liver and Renal Function
    (جامعة الشيخ عبدالله البدري, 2021-12-21) Elbadri E. Osman
    Some of the dyes that are used for coloring hair and skin contain a chemical compound called paraphenylenediamine (PPD), which is potentially toxic. The study comprised 50 adult Sudanese women who were selected by stratified random sampling and working as henna artist. Urine samples were taken for detection of PPD while blood samples were taken for investigating kidney and liver functions by measuring its relevant hematological indices. In other hand Thin Layer Chromatography (TLC) and High Performance Liquid Chromatography (HPLC) were used to detection of PPD in black henna (stone dye) samples and urine. The PPD was detected in the urine of all women who used the black henna its concentration varied according to duration of exposure being significantly higher in those with >10 years of exposure (p≤0.01). Similarly significant changes in liver function, kidney function and hematological indices were found in the group of women who used natural henna. This study concluded that natural henna is safe to use, while Black dye is potentially hazardous. It contains the high concentration of PPD, is the one most commonly associated with adverse effects.
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    أثر استقلالية مراجع الحسابات على الأداء المالي دراسة ميدانية ديوان المراجعة القومي
    (جامعة الشيخ عبدالله البدري, 2020) محمد احمد عبد الله مختار
    تمثلت مشكلة الدراسة في انه وبالرغم من وجود عدد من الضوابط والأسس والمبادئ والمقومات التي يرتكز عليها استقلال وحياد مراجع الحسابات إلا إنها لا تؤخذ بعين الاعتبار من قبل الجهات المختصة والتي بدورها تتأثر درجة استقلاليته . هدفت الدراسة على مناقشة معيار استقلالية وموضوعية وحياد المراجع ومحاولة وضع اطار ومضمون لحياد المراجع الخارجي وقد قامت هذه الدراسة على اختبار فرضية أن هنالك علاقة ذات دلالة إحصائية بين استقلالية مراجع الحسابات وجودة الأداء المالي واعتمدت الدراسة على عدد من المناهج منها الاستنباطي والاستقرائي والوصفي والتاريخي وتوصلت الدراسة الي عدد من النتائج منها أن تعيين المراجع بواسطة الجهة ذات الشأن (الجمعية العمومية مثلا) يعطى قدر عالي من المصداقية والقبول. كما توصلت الدراسة الي عدد من التوصيات منها ضرورة استخدام وسائل تقنية وأساليب حديثة في أعمال المراجعة وضرورة تأهيل المراجع تأهيلا علميا كافيا The problem of the study was that despite the existence of a number of control s, principles, and foundations on which the independence and impartiality of the auditor are based, they are not taken into consideration by the competent authorities without which the degree of independence is affected. The study aimed to discuss the criterion of independence, objectivity and impartiality of the references to establish a frame work and content for the impartiality of the external auditor. The study examined the hypothesis that there is a statistically significant relationship between the auditor's independence and the quality of financial performance The work relied on number of approaches, including the deductive, inductive, descriptive and historical approach. The study came out with number of results, including the appointment of the auditor by relevant authority (e.g. the general assembly), which gives a high degree of credibility and acceptance. The study also suggested a number of recommendations, including the need to use modern technical methods in the work of the review and the need to qualify references for sufficient practical qualification
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    أثر اجراءات الشراء في تحقيق رضا الزبائن (دراسة ميدانية: بشركة كورال المحدودة)
    (جامعة الشيخ عبدالله البدري, 2021) 1. هيثم طلعت عيسى عوض; 2. التجاني الطاهر عبد القادر
    المستخلص: تناولت الدراسة أثر اجراءات الشراء في تحقيق رضا الزبائن بشركة كورال المحدودة. هدف الدراسة توضيح أثر إجراءات الشراء في رضا الزبون والتعرف على أفضل الاجراءات التي تؤثر في رضا الزبون. استخدمت الدراسة المنهج الوصفي التحليلي، والاستبانة كأداة لجمع البيانات والمعلومات من عينة الدراسة. توصلت الدراسة الى أن الشركة تدرس السوق للمحافظة علي رضا الزبائن، كما بينت الدراسة ان امتلاك الشركة لمديري مشتريات مهرة يؤدي لتلبية احتياجات الزبائن، وان الشركة تراقب عملياتها لضمان تحقيق رضا المستهلك، وان للشركة إجراءات مرنة تمكن الزبائن من الحصول علي منتجاتها، ومراعي الشركة عند تحديد الاجراءات ان تكون اقتصادية. اوصت الدراسة بضرورة أن تتبع الشركة إجراءات شراء واضحة للمستهلكين، ويجب أن تكون إجراءات الشراء المتبعة تراعي الاقتصاد في النفقات، ولابد أن تكون إجراءات الشراء المتبعة بالشركة مرنة حتي يتمكن المستهلكين من الحصول علي منتجاتها. Abstract The study examined the effect of purchasing procedures on customer satisfaction in Coral Company Ltd. The aim of the study is to clarify the effect of purchasing procedures on customer satisfaction, and to identify the best procedures that affect customer satisfaction. The study used the descriptive and analytical approach and the questionnaire as a tool to collect data and information from the study sample. The study found that the company is studying the market to maintain customer satisfaction. The study also showed that the company’s possession of skilled purchasing managers leads to meeting the needs of customers, and that the company monitors its operations to ensure that consumer satisfaction is achieved, and that the company has flexible procedures that enable customers to obtain its products. Procedures to be economical. The study recommended that the company should follow clear procurement procedures for consumers, and that the followed procurement procedures must take into account the economy in expenditures, and the purchase procedures followed by the company must be flexible so that consumers can obtain its products
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    Antioxidant activity, phytochemical screening and cytotoxicity of ethanolic leaves extract of Antigonon leptopus
    (جامعة الشيخ عبدالله البدري, 2015) Elbadri E. Osman
    he leaves of Antigonon leptopus, belonging to the family Polygonaceae. A. leptopus is used as a treatment for cough and throat constriction in Sudan and considered as one of the important medicinal plants in their folk-medicine. The present study investigated the in-vitro antioxidant (DPPH assay), phytochemical screening and cytotoxicity (MTT) of ethanol extract of A. leptopus (leaves). The ethanol extract of A. leptopus (leaves) was screened for detect their free radical scavenging properties using 2.2Di (4-tert-octylphenyl)-1-picryl-hydrazyl (DPPH), while propyl galate was used as a standard antioxidant and screened for their cytotoxicity using 3- (4, 5-dimethyl thiazol-2-yl)-2, 5-diphenyl tetrazolium bromide (MTT). Ethanol extracts of A. leptopus (leaves). The tested antioxidant activity gave (89 ± 0.04 RSA%) in comparison to the control of propylgalate levels (72 ± 0.01RSA%), Primary phytochemical screening on leaves of A. leptopus appeared the rich of alkaloids, saponins, tannins, unsaturated sterol and/or triterpenes, flavonoids, glycosides and coumarins. And MTT assay appeared the safety of the extract. Key words: Antioxidant activities (DPPH), phytochemical screening and cytotoxicity (MTT), Antigonon leptopus (leaves)
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    Antigiardial Activity and Toxicological Exploration of Cannabis Sativa Extracts
    (جامعة الشيخ عبدالله البدري, 2013) Elbadri E. Osman
    Abstract— The present study has been attempt to elucidate antigiardial activity and explore the cytoxicity, investigation on liver Diagnostic Enzymes and Changes in serum constituents of Cannabis Sativa aerial parts and seeds, which were extracted by Petroleum ether and methanol. Aerial parts methanolic extract gave 63.6% mortality after 72 hours at concentration 1000 ppm (IC50 0.13 ppm) comparing with metrondizole (IC50 0.0125 ppm). While the other extracts found inactive as antigiardiasis after 72 hours. The slight increase in Aspartate amino transferase (AST), Alanine amino transferase (ALT) and Alkaline phosphatase (ALP) liver enzyme and total protein, urea, albumin and calcium which indicate some degree hepatic nefropathy effect of such plant petroleum ether extract. Moreover, phytochemical examination was carried out firstly and revealed that, the petroleum ether extract of Cannabis sativa seed do not contain tetrahydrocannbinol (THC), cannabinol (CBN) and cannabidaiol (CBD). However, all extracts showed no significant cytotoxic activity against vero cell line. Index Terms— Giardia lamblia, Cytotoxicity, Cannabis sativa, Liver enzymes