Positron annihilation lifetime (PAL) technique has been employed to investigate the effect of low doses of -irradiation (in air and vacuum) on the type of polymers namely: polystyrene (PS). A conventional fast-slow coincidence system was used for measuring the positron lifetime spectra. The time resolution of the system was ٤٢٢±٢٠ ps (the full width at half maximum (FWHM)) at Na energy window....

This work presents a methodology for designing models in engineering and education fields for verifying the quality assurance conditions. The first model uses matrix structural analysis (MSA) to calculate the expected values for the model. The matrix structural analysis (MSA) uses to design model in engineering field, this helps to expect the values which is the nearest to the real ones. The MS...

Segmentation of images holds an important position in the area of image processing. It becomes more important while typically dealing with medical images where pre-surgery and post surgery decisions are required for the purpose of initiating and speeding up the recovery process Computer aided detection of abnormal growth of tissues is primarily motivated by the necessity of achieving maximum po...

521 Abstract Background: TNF-α is one of the cytokines produced by the immune system. Many studies have been done to investigate the role of the immune system in first trimester pregnancy loss. Objective: To evaluate the association of TNF-α with recurrent and missed miscarriage. Method: a case-control study involved 35 women, 15 with recurrent miscarriage (at least three consecutive spontaneo...

Concerns about traditional chemical pesticides has led to increasing research into novel mosquito control methods. This study compared the effectiveness of 2 different types of polystyrene beads for control of mosquito larvae in south-east Islamic Republic of Iran. Simulated field trials were done in artificial pools and field trials were carried out in 2 villages in an indigenous malaria area ...

ةيداع ريغ ةيريرس تاملاع نم يناعي تاونس 8 هرمع يبص انفصو نم ضرم وه "رشوج" ضرم .ةرمدم جئاتن عم رشوج ضرم نم صقن نع جتنيو ةنمزلما ةيموزوزيللا نيزختلا تابارطضا ضارمأ رهاظبم "رشوج" ضرم زيمتي "زيديسوربيريسوكولج" يمزنأ يف .يعانلما زاهلجا رثأت ىلع يوطنت ام اًبلاغ نكلو ةفلتخم ةيريرس ساسأ ىلع "رشوج" ضرلم ةزيمتم ةيعرف عاونأ 3 تفصو دقل صيخشت متيو .يبصعلا زاهلجا رثأت ضارعأ بايغ وأ دوجو روتح ةسارد ،طاشنلا صحف ...

A cross-sectional study of knowledge, attitudes and practice of general practitioners (GPs) towards complementary and alternative medicine (CAM) was conducted in Doha, Qatar. Out of 119 respondents, 39.1% reported poor knowledge about CAM. Self-reported knowledge was highest for counselling and psychotherapy (69.0%), diet and supplements (68.1%), acupuncture (45.2%), herbal medicine (47.3%) and...

ةيكلسلالا راعشتسلاا تاكبش ةيطغت يف ) WSN ( ةكبشلا نم ةمدخلا ةدوج سايق يف مهم بناج . عم لومحملا ةكبش WSN كيرحت قيرط نع اهتيطغت نيسحت ىلع ةرداق لا sensor nodes لضفأ بيترت ىلإ لصوتلا متي ثيحب . نكل ت ةقاط كلهتسي راعشتسلاا ةزهجأ كيرح . ةقرولا هذه يف ةيثحبلا ةثلاث ضرع مت algorithms ةيطغت نيسحتل WSN ةقاطلا مادختسا رابتعلاا يف ذخلأا عم لومحملا . تتبثا، ىلإ ادانتساو تيرجأ يتلا براجتلا حاجن لا ـ...

نم أشنت .ةردان ةديمح ماروأ يه )ةيفيللا( ةيطابرلا مارولأا عباط تاذ يهو .مسلجا ءاحنأ عيمج يف ةيلضعلا لكايهلا لدعم عافترا ىلإ ىدأ امم ، ةرواجلما هيللمحا ةجسنلأل يحاشترا ةردنل ًارظن و .يحارلجا لاصئتسلاا دعب مرولا عوجر ةبسنو نع غلابلإاب انمق اننإف ، ةبقرلاو سأرلا ةقطنم يف مارولأا هذه يف اهجلاعو قنعلا ىلعأ يف يطابرلا مرولاب اهصيخشت تم ةلاح جلاعل هرفوتلما تارايلخاو قرطلا لوح يعولا ةدايزل ،انافشتسم .ةبق...