although allameh majlisi has not intended to write a distinct ethical book on ethics or to present a coherent moral system in various volumes of behar al-anwar, but we can deduce a comprehensive ethical system through examination of the different discussions he has made about different  verses and traditions. this deduced ethical system not only emphasizes the role of reason in explaining the t...

Recently, the complete amino acid sequence of a protein expressed in Escherichia coli from cloned Brucella abortus DNA was reported. On the basis of amino acid homology, this protein was identified as a copper-zinc superoxide dismutase (Cu-Zn SOD) (B. L. Beck, L. B. Tabatabai, and J. E. Mayfield, Biochemistry 29:372-376, 1990). We demonstrate in this paper that the sequenced protein is the same...

BACKGROUND Copper and zinc are the elements with numerous physiological activities. Copper (Cu) has an important role in angiogenesis and acts by increasing Vascular Endothelial Growth Factor (VEGF). Serum levels of copper will be increased in cancer incidence, progression and recurrence. The aim of this study was to measure blood levels of copper, zinc, and the ratio of Cu /Zn, as well as VEGF...

Soil microorganisms are surrounded by organic matter that is rich in carbon and nutrients that are required for growth and cell maintenance. However, microbes cannot directly transport these macromolecules into the cytoplasm. Rather, they rely on the activity of a myriad of enzymes that they produce and release into their environment. These enzymes depolymerize organic compounds and generate so...

In the present work are presented results from numerical simulations performed with the ANSYS-CFX code. It is studied a radial diffuser flow case, which is the main academic problem used to study the flow behavior on flat plate valves. The radial flow inside the diffuser has important behaviors such as the turbulence decay downstream and recirculation regions inside the valve flow channel due t...

Meta-Analysis of the Findings on the Effects of Descriptive Evaluation on Learning Outcomes   A. Aali, Ph.D.* R. Mobaarak Ghamsari**   Changing the way that students’ learning is evaluated to what is called descriptive evaluation during the past decade has been the focus of many studies with conflicting results. To clarify the picture and determine the true impact of this t...

Information and Communication Technology (ICT) is now common place in the university environment.ICT is an indispensable part of the contemporary world. The field of education has certain ly been affected by the penetrating influence of ICT worldwide and in particular developed countries; ICT has made an impact on the quality and quantity of teaching, learning, and research in the traditional a...