one of the main factors that affect the success of the cast crown is the accuracy of the internal and marginal fit, a well-fitting crown reduces the chance for recurrent caries and periodontal disease, whereas the space between a poorly-fitting crown and tooth preparation enables accumulation of bacterial plaque, the use of paint- on die spacing technique to produce the cement gap and subsequently to improve the seating of the cast crowns has become quite popular in the recent years. The purpose of the study is to compare the marginal gap and the internal fit produced by two paint-on die spacing materials (Manicure and paint on die spacer ). Twenty four identical stone dies were made, 12 were coated with paint- on die spacer material, and 12 were coated with nail varnish material, the dies coated with die spacer were divided into three groups (DA,DB,DC), and the dies coated with nail varnish were also divided into three groups (VA,VB,VC), groups DA and VA were coated with one layer, DB and VB were coated with two layers, DC and VC were coated with three layers, for both groups wax patterns were made and casted using the lost waxing technique and all steps were standardized, impression replicas of the casted crowns were made and sectioned by means of the impression replica technique, measurements were taken using Scanning Electron Microscope, from 4 points (marginal gap, mid-axial, axio-occlusal and mid-occlusal). There was no statistical significant difference in accuracy between crowns fabricated on die spacer coated dies and crowns fabricated on nail varnish coated dies. with the crowns fabricated on die spacer coated dies being slightly more accurate.
ABDUSSALAM ELJABALI(12-2019)

This study was primarily conducted to investigate the prevalence of imported malaria in a sample of foreign workers (n-1038) in Tripoli during the period from May 2006 to June 2007. A comprehensive review of malaria epidemiology in Libya in the last two decades was also given. All samples were tested serologically using Malaria Rapid Diagnostic test and then examined using blood film technique. Results showed that only 10 samples (1%) were tested positive for both malaria rapid diagnostic test and blood film. Nine of those infected were identified as Plasmodium falciparum and one as Plasmodium vivax. This study confirms that the prevalence of malaria in legal foreign workers is low and the risk of re-introducing or transmitting malaria in the northern areas of the country is remote. It also gives no good reason for including malaria test among those requested for issuing health certificates to foreign workers. The use of malaria Rapid Diagnostic test for malaria detection in this study was proved to be practical and reliable. Although, the situation of imported malaria in Libya imposes no immediate threat to re-emerging of malaria in the country however, continuous surveillance and monitoring particularly to the southern regions and populations have to be taken in a great consideration. An updated new map of malaria vectors distribution in Libya is urgently needed to be able to outline areas of high risk of malaria transmission.
Fadwa Jamaledden Mustafa Kamel Mahanay, Badereddin Bashir K. Annajar(5-2009)

طالما أن الفرد والمجتمع متلازمان ولا ينفصلان، فإنه يجب تنظيم العلاقة بين سلطة الدولة وحريات الأفراد وبما أن ،في المجتمع الدستور يمثل وسيلة الحكم الديمقراطي في المجتمعات المتقدمة، فعليه تقع مهمة تنظيم هذه العلاقة تحيل كونه يس تصور مجتمع بشري بدون تشريع، فالرابطة الاجتماعية هي رابطة قانونية قبل كل شيء وحيث يكون المجتمع يكون القانون. وفي الواقع، لا تكون حماية ممارسة الحريات العامة دائما وفي كل مكان بنفس الطريقة، حتى داخل الدولة كما أن ال ،الواحدة حلول تختلف تبعا للحريات المعنية، أي تبعا للنشاط الإنساني المعني، وأنماط تنظيمها لا يقع دائما على ذات المستوى ، وإنما يتغير تبعا للحالات العادية التي يكون فيها المجتمع والظروف الاستثنائية التي تمر .بها البلاد لذلك فإن أساليب تنظيم الحرية ليست واحدة فقد تكون عن طريق الدستور أو القانون كما قد تكون عن طريق القرارات الإدارية التنظيمية .
حسام علي الحاج (6-2019)