ا كان لإلنسان أن يخطو، يف فترة وجيزة تقارب القرن من الزمن، هذه اخلطوات العمالقة يف مجال العلوم واملعرفة، بدون البحث العلمي الرصني الذي يعتمد الطريقة العلمية يف التفكير، وليس غريبا أن تكون إحدى أهم ركائز تصنيف اجلامعات العاملية مدى قدرة اجلامعة على اإلسهام الفاعل يف إثراء املعرفة االنسانية من خالل ما جتريه من بحوث. وانطالقا من اإلحساس مبسؤولياتها، ويف سبيل السعي إلى احلصول على موطأ قدم لها بني جامعات العالم، شكلت جامعة طرابلس جلنة من أساتذتها؛ لوضع مشروع وثيقة ألخالقيات البحث العلمي داخلها تلزم باحثيها اتباع االشتراطات، واملعايير، واملتطلبات األخالقية املنبثقة أس�اس�ا م�ن املفاهيم وامل�ب�ادئ العليا التي تقوم عليها املجتمعات، وتقرها الديانات واألعراف والتشريعات والثقافة واملواثيق الدولية ذات العالقة والتي تضبط وتنظم السلوك اإلنساني وتصنف املمارسات واألفعال والعالقات والسياسات، فيما إذا كانت مقبولة، أو غير مقبولة، ولتحافظ على أعلى مستوى ممكن من الشفافية واملصداقية يف العملية البحثية.
بسمة محمد خليفة دورو, خالد الهادي عبدالسلام الرفاعي, عبدالكريم امحمد احمد احتاش, محمد عبدالسلام محمد القريو , محمود احمد امحمد الديك, ضو خليفة محمد الترهوني, (1-2017)

Aims: The study is intended to compare the freshly collected henna (Lawsonia inermis L.) and the market henna in term of microscopical key elements and heavy metals contamination. Moreover, this study is aimed to investigate the effect of henna and its oily additives on kidney histology in female mice. Study Design: Department of Pharmacognosy, Faculty of Pharmacy, University of Tripoli and Animals House, Biotechnology Research Center in 2010. Methodology: The powders of collected and market henna have been subjected to a microscopical study with magnification of 5x then 40 x to investigate the henna key elements, which are calcium oxalate clusters, anomocytic stomata, starch grains and fibers. Three elements: arsenic (As), mercury (Hg) and lead (Pd) were analyzed by atomic absorption spectroscopy (AAs) for the collected and market henna. For histopathological study, an aqueous extracts of L. inermis leaves and L. inermis leaves-oils were prepared by maceration. Eighteen female Albino Wister mice (3-4-months, 20-25 gm) were injected with the prepared extracts subcutaneously by dose 50 ml/kg/day for 5 days. Kidneys were collected and subjected to histopathological study. Results: From this study, the microscopical investigation exhibited the presence of some elements which are never mentioned as the henna key elements. Both market and collected henna were contaminated with a high level of heavy metals specially lead (Pd). The histopathological findings implied that there are many histological changes on the kidney tissues such as aggregation of round cells and congestion of blood vessels. Conclusion: The market henna might be adulterated with other types of plant. The presence of a high concentration of lead (Pd) in the collected henna as well as the market henna might be considered as the cause of some L. inermis adverse effects. L. inermis leaves and L. inermis leaves-oils aqueous extracts implied many abnormalities in the kidney tissues. arabic 17 English 102
Sakina S. Saadawi, Hanin N. Mughrbi, Mukhtar R. Haman, Surur A. Ahmed, Laila A. Ghashout, Elsayed R. Elattar(5-2020)

Vigorous research has been conducted into the phenology of the shea tree, its usage and that of the shea butter extracted from the nuts of the shea fruit. Shea butter is the most valuable product in the Shea tree and its use as raw or in cosmetic and pharmaceutical products was expanded in the last years. The aim was to carry out comparative study between imported South African raw Shea Butter, one sample from Poland and samples from Libyan market on their physical properties (organoleptic), thin layer chromatography (TLC) chromatogram, phytochemical screening and diphenylpicrylhydrazil (DPPH) scavenging activity. As well as antimicrobial screening. Organoleptic test was carried out by comparing color and odor. TLC chromatogram was performed by spotting solution of samples in hexane on TLC plate and eluted twice in hexane: ethylacetate 8:2 to get good separation. Phytochemical screening was performed to determine the presence of carbohydrates (Fehling test), steroids, and triterpens (Salkwiski test). DPPH assay was carried out by spraying TLC sample spots by 0.2% DPPH methanolic solution. Antimicrobial test was conducted on Pseudomonas aeruginosa and Staphylococcus aureus. Mueller-Hinton agar was used with ciprofolxacin as +ve control and DMSO as–ve control. As a result, Shea Butter samples showed wide diversity in color and odor which considered normal except two white samples that might undergo refining process, while spreadability and TLC chromatograms were similar. Samples and control showed presence of carbohydrates, steroids and triterpens. Control and samples had DPPH scavenging activity. Shea Butter control and samples had no antimicrobial activities against P. aeruginosa and S. aureus. arabic 17 English 111
Sakina Salem Saadawi, Khairi Ali Alennabi, Hanin Nafed Mughrbi, Kholoud Lotfi, Nesrin Saleh Ali Abdulnabi(4-2020)