شملت الدراسة مجموعة من تلاميذ إحدى المدارس الابتدائية في منطقة سوق الجمعة\ طرابلس في الفترة مابين شهري (يناير- فبراير)، وتم استهداف91 عينة تعود لـ 46 تلميذ من الذكور و45 تلميذة من الإناث تراوحت أعمارهم ما بين 7-10 سنوات، وذلك لغرض التعرف على الفطريات المصاحبة لشعر(فروة) الرأس، وتم التعرف على أربعة عشر من الفطريات التي تنتمي إلى تحت الأقسام (Sub Divisions) الآتية: Zygomycotina(1)، Ascomycotina(2)، Deuteromycotina(11)، وكانت أكثر الفطريات شيوعاً عند الأطفال (التلاميذ) هو فطر Candida albicans ( 37.36%) ثم يليه كلاً من فطر P.chrysogenum و A. alternate وCladosporium sp. ( 24.18%) لكل منهم. كان أكثر الفطريات شيوعاً عند الأطفال (التلاميذ) من الإناث فطرA. Alternate (35.56%) يليه فطر P.chrysogenum (26.67%)، بينما في الأطفال (التلاميذ) من الذكور فكان الفطر الأكثر شيوعاً فطر Candida albicans (54.35%) ويليه فطر Cladosporium sp. (30.43%). arabic 80 English 0
هدى ميلاد محمد بن زائد, أمال مصطفي ميلاد انبيه(3-2017)

Seabird feathers and eggshells are used as bio-monitors for trace metal contamination. Eleven trace element concentrations in wing primaries (n = 21) and eggshells (n = 8) are reported herein for two resident seabirds, Bridled Tern Onychoprion anaethetus and Black-naped Tern Sterna sumatrana, at Pulau Ling and Pulau Tokung Burung, Malaysia. Metal concentration followed the pattern Zn > Cr > Mn > Sr > Cu > Se > Ba > Pb > Cd > Ga > Li. Significant positive correlations existed among all trace metals, except for Cr in Black-naped Tern and Li and Cd in Bridled Tern feathers. We also analyzed metal concentrations in eggshells, and for Bridled Tern, the concentration pattern was Zn > Mn > Se > Sr > Ba > Pb > Co > Cu > Cd, whereas for Black-naped Tern it was Cr > Zn > Mn > Ba > Sr > Se > Cu> Co > Pb. A pairwise positive correlation was significant among most trace metals in feather samples, indicating synergistic effects of two or more elements. More studies are needed to build a baseline database of trace metal concentrations in seabirds of Southeast Asia, as little research on this subject has been conducted in this region.
Abdulmula Abdumagid Alhadi Hamza(1-2022)

ABSTRACT: Marine turtles have been traditionally considered model organisms to study sex-biased behaviour and dispersal. Although female philopatry has been identified in the loggerhead turtle, with adult females returning to specific locations to nest, studies on the philopatry and breeding migrations of males remain limited. In this study we analysed 152 hatchlings using 15 microsatellite markers. Each individual came from a different nest from samples taken at 8 nesting grounds in the Mediterranean. Our results revealed the existence of 5 genetically differentiated units, mostly due to restricted gene flow for both sexes. This supports existing satellite tracking studies that suggest that mating occurs close to nesting grounds in this region. The 5 management units identified within the Mediterranean included nesting grounds from (1) Libya and Cyprus, (2) Israel, (3) Lebanon, (4) Turkey and (5) Greece. The genetic similarity between distant nesting areas (i.e. Libya and Cyprus) suggests the presence of a more complex pattern of breeding behaviour. Three possible hypotheses, that remain to be tested in future studies, could explain this result: (1) mating might take place in common foraging grounds; (2) mating could occur en route while migrating to/from the breeding grounds; or (3) recent colonisation events could connect the 2 nesting grounds. Overall, our work suggests that widespread male-mediated gene flow between loggerhead nesting grounds is likely to have been previously overstated although opportunistic breeding patterns might connect some widely separated areas.
Abdulmula Abdumagid Alhadi Hamza(1-2022)