A total of 25 randomly purchased bread samples were analyzed in this study from 25 different bakeries in Tajoura city. Bread in Libya is highly consumed among all socioeconomic groups; it is mainly consumed in breakfast, dinner and school meals. Potassium bromate is the most popular additive used in bakery industry worldwide. Bakeries in the US used Potassium bromate as bread improver since 1914 to increase bread volume and texture and improve bread production. The main aim of this study is to assess the safety of bread by the measurement of residual potassium bromate using a rapid and reliable method and to investigate the level of compliance to the ban fourteen years later. This method is based on the reaction between bromate and iodide in acidic medium to produce iodine (I2). The absorbance of I2 was measured spectrophotometrically at 488nm. The calibration curve was linear (R2=0.9996) over the range 1.0 – 5.0mg/L of potassium bromate. Despite the ban of potassium bromate in Libya since 2005 due to its classification as a potential carcinogen it is still detected in local bread loaves. All samples showed high levels of potassium bromate to be 300 to 1333 more than the permissible level set by the American Food and Drug Administration (FDA) which is highly toxic for consumers and could threaten their health over prolonged regular consumption. A continuous pursuance and implementation of the ban on use of potassium bromate in baking industry in Libya is recommended. arabic 11 English 67
RAGIAB ALI MOKHTAR ISSA(1-2020)

الدرس الالكتروني واهميته في العملية التعليمية:(2017), الملتقى العلمي الاول للمعلمين " تاجوراء" في الفترة من 19 الى 21/9/2017. arabic 85 English 0
اسامة مسعود ابوالقاسم محمد(9-2017)

This qualitative descriptive case study reflects the researcher's experience, as a Teaching Practice (TP) Co-ordinator at the Libyan Faculty of Education Tripoli (FET), in developing and examining academic supervisors’ implementation of an innovative TP Assessment Model for EFL trainees. Previous assessment lacked accuracy and comprehensiveness and relied solely on assessing behavioural observable skills. The new TPAM incorporates, for the first time at FET, Unobservable Skills Assessment through supporting documents that supervisors use to assess trainees’ skills in classroom observation, feedback provision, self-reflection, and reporting on TP experience, all of which comprise a Teaching Practice Portfolio (TPP). The study focuses on a key concern: (1) How to develop existing assessment criteria in an objective and comprehensive manner embracing both observable and unobservable skills. Two operational sub-questions emerged: (2) How would the supervisors’ implement the Unobservable Skills Assessment in the TPAM; (3) How would trainees respond to Unobservable Skills Assessment criteria? Data were collected through quantitative analysis of the supporting documents; semi-structured interviews with seven supervisors involved; focus group discussions with trainee teachers. The findings show that while the supervisors were satisfied with the developed assessment criteria, their overall performance in implementing the Unobservable Skills Assessment was poor; besides a lack of immediate feedback provision after school visits, the supporting documents for unobservable skills were not fully executed. Only two supervisors out of seven demonstrated acceptable adherence to the model requirements. Some trainees had reservations regarding the extra workload required in carrying out self-reflections and in writing reports of TP experience; others considered the criterion of professional development outlook inconsequential during initial teacher training. arabic 16 English 101
ٌٌReda Khaled Emhemmed Elmabruk(1-2020)