In the light of environmental graphics consists of two source of natural light and artificial light .The natural light is provided  by the sun . An unpredictable thing that can not be easily controlled, and we are bound to build our environment around it .Artificial light is taken from the technology response in line with the human need to turn their world after dark. Artificial light can be...

Soil enzymes are the catalysts for important metabolic process functions including the decomposition of organic inputs and the detoxification of xenobiotics. The aim of this research was to determine the pattern of variation in the activities of dehydrogenase, urease, lipase and phosphatase enzymes, determining the number of hetrotrophic and degrading bacteria and measuring the soil respiratio...

  Background and Objective : Protective factors refer to positive action strategies that build resiliency in youth. Emotional control expressiveness style is the major protective factor that contributes to the development of resiliency in youth and the implications for building effective prevention programs in substance abuse. This research was designed to investigate the relationship between e...

Taloo and Shirband hunting Prohibited area is located 12 kilometers North-East of Damghan in Semnan Province, south of the Alborz Mountain Chains. It has a cold and dry climate in the winter and warm and dry in the summer. This area has a rich biodiversity, especially in its reptilian fauna. 22 snake species were reported so far from Semnan Province. However, no comprehensice study was executed...

Rangeland management projects considered to be a management tools to increase the quantity and quality of the rangelands. Persomably, It could work more efficintley in areas where the grazing pressure is high and consequently their condition and trend are regressive. In this study, production, range condition and range trend were examined before and after the implementation of the range managem...

this study examines the effetivenss of task-based activities in helping students learn english language structures for a better communication. initially, a michigan test was administered to the two groups of 52 students majoring in english at the allameh ghotb -e- ravandi university to ensure their homogeneity. the students scores on the grammar part of this test were also regarded as their pre...

Objectives: The purpose of this study was to explaine the association between the prevalence of common diseases and demographic, occupotional factors in elderly staff in IRIB (Tehran center) Regarding the increasing of elderly populationin the world, indluding IRAN, the prevalence of the physical disability in this age range is raised which leads to several unfavarable out comes such as: hospit...

This study aims at identifying optimal method for masuring degree and level of development with resprct to models commonly used (Taxonomy, TOPSIS, Moris, SAW, and VIKOR). It is an applied rsearch in terms of the purpose and also is a quantitative research that was carried out in a survey method. Statistical population of the study was the villages in the county with 20 or more households (89 vi...