the aim of this research is the study of trends in annual precipitation changes in some selected stations located in the sefid rood basin, applying the man-kendall non-parametric technique. the method is one of the most frequently used non-parametric techniques for trend analysis of precipitation on an annual scale. six synoptic stations located in the sefid rood basin were selected for the ana...

The aim of this study is a sociological explanation on the relationship between virtual social network's consumption and the youth's lifestyle and its factors such as leisure time, body management and the amount of consumption and the type of consumption was based on theoretical frameworks of Bourdieu, Giddens, Simmel and Engellhart. The research method is survey and a questionnaire is used in ...

Landslide is a type of slope process causing plethora economic damage and loss lives worldwide every year. This study aimed to analyze spatial landslide susceptibility mapping in the Khalkhal-Tarom Basin by integrating an adaptive neuro-fuzzy inference system (ANFIS) with two multi-criteria decision-making approaches, i.e., best-worst method (BWM) stepwise weight assessment ratio analysis (SWAR...

Dog Rose is one of the most important species in Rosaceae family used as a medicinal plant and a rootstock for ornamental roses. This species is native to Iran, therefore, identification of indigenous genotypes of this species is important for genetic preservation or breeding purposes. Genetic diversity estimation of plant materials is one of the important pre-breeding activities in breeding cr...

Rangeland vegetation dynamics can be affected by various natural and unnatural factors over time. The purpose of this study was to investigate the dynamics of vegetation under the climatic conditions and soil properties. Accordingly, data collection for evaluating vegetation dynamics in rangeland ecosystems of Ardabil province was conducted at three research sites including Moqan winter rangela...

a cross-sectional survey was conducted .using a modified questionnaire for the study of cigarette smoking prevalence in khalkhal city, iran, during may-â june 1999. a simple random sample with size 260 was selected for this study. all of the students in the sample completed a questionnaire. the results showed among 260 students, 104 of them (40%) experienced at least once cigarette smoking and ...

introductionin comparison with fossil fuels which pollute the lower layer of the atmosphere, use of windenergy has many environmental and economic advantages. wind is a clean and renewableenergy resource and use of the energy in the recent decades has been welcomed so much in theworld. energy plays an important role in the development of each society. all differentactivities including housing, ...

identity and other issues related to it is one the most important matters in human’s life. identity is a complex and multi-dimensional issue; so studying it, considering its importance in different aspects of life, is rough. the main aim of this study is recognizing the effective factors on social identity as well as understanding the imagination and narration of women of themselves. with the u...

The present research was conducted with the aim to sociologically explicate the economic participation among young people in Khalkhal. What is highly important in this research is the necessity to give priority to economic participation. The theories of ideologists such as Rostow, Learner, Marxist and Tok were employed to conduct this research. Meanwhile, survey method and questionnaires were u...