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التلوث الميكروبي والعناصر الثقيلة في بيئة عمل كلية العلوم الهندسية والتقنية – جامعة سبها – ليبيا. (لوحة مفاتيح الكمبيوتر كحالة دراسة), Amnah Saber, Asma Abdullah
التلوث الميكروبي والعناصر الثقيلة في بيئة عمل كلية العلوم الهندسية والتقنية – جامعة سبها – ليبيا. (لوحة مفاتيح الكمبيوتر كحالة دراسة), Amnah Saber, Asma Abdullah
Palestine Technical University Research Journal
The paper aims to investigate the concentrations of Pb, Cd, Cr and Ag element of as well as microbial contamination in computer keyboard within the work environment at the Faculty of Engineering and Technology Sciences (FETS) at Sebha University, Libya. The results showed that the mean elemental concentrations (mg/g) in the samples were Pb (14.2±12.9), Ag (7.49±1.44), Cr (6.09±2.88) and Cd (4.43±1.48). The most commonly found heavy metals were Pb (44.1%), followed by (Ag 23.3), (Cr 18.9), and (Cd 13.8) %. The concentrations were higher than the limits allowed by EPA 2009. The concentration of Cd also exceeded the European …
مساهمة بعض القياسات الأنثروبومترية والبدنية بالإنجاز الرقمي للسباحة الحرة لمسافة (50) متر لدى ناشئي السباحة في محافظة طولكرم, Maha Jarrad
Palestine Technical University Research Journal
This study aims to identify the most anthropometric and physical abilities which contributes with (50)m crawl swimming performance in Tulkarem govrnorate. The measurements of young swimmers aged between (13-15) years old were taken. This study followed the descriptive approach. Nineteen anthropometric measure-ments and five physical abilities measurements as well as timing of swimmers in crawl swimming for (50) m were taken. SPSS was used to analyze the data. The study sample consisted of (39) young swimmers. The study reported a correlation statistically significant at the level of significance (α ≤ 0,05) between some anthro-pometric measurements (body mass, total length, the …