Bu çalışmada, sol-jel spin kaplama yöntemi kullanılarak mikroskop cam altlıklar üzerine TiO2, TiO2/CoPc ve CoPc filmleri hazırlanmış katkı konsantrasyonunun filmlerin optik yapısal özellikleri etkisi araştırılmıştır. İnce geçirgenliğini ölçmek için 300-1100 nm dalgaboyu aralığında bir spektrofotometre kullanılmıştır. Uv-Vis çalışmaları, B Q bandı absorpsiyon bölgelerine karşılık gelen aralıklar...

هدفت الدراسة إلى الکشف عن علاقة الضغوط المهنية(ضغوط العمل) بالدلالات الإکلينيکة لإستجابات عينة من أعضاء هيئة التدريس على إختبار الشخصية المتعدد الاوجه الثاني الإلکتروني المهيکل (MPI- 2- E- RF)، کما حاولت الفروق في المتغيرات السابقة لدى (الذکور، الاناث). وتکونت (102) عضو (50ذکور، 52إناث) بمتوسط عمري (43.29) سنة،وقد طبق عليهم مقياسين هما: مقياس المهنية (ضغوط إعداد فرج طه والسيد راغب عام2010،وإختب...

Economists have speculated for at least a century that the social return to education may exceed the private return. In this paper, I estimate spillovers from college education by comparing wages for otherwise similar individuals who work in cities with di*erent shares of college graduates in the labor force. A key issue in this comparison is the presence of unobservable characteristics of indi...

Context. The contrast of granulation is an important quantity characterizing solar surface convection. Aims. We compare the intensity contrast at 630 nm, observed using the Spectro-Polarimeter (SP) aboard the Hinode satellite, with the 3D radiative MHD simulations of Vögler & Schüssler (2007). Methods. A synthetic image from the simulation is degraded using a theoretical point-spread function o...

Context. Among optical stellar interferometers, the CHARA Array located at Mt Wilson in California offers the potential of very long baselines (up to 330 m) and the prospect of coupling multiple beam combiners. This paper presents the principle and the measured performance of VEGA, Visible spEctroGraph and polArimeter installed in September 2007 at the coherent focus of the array. Aims. With 0....