this study aims to assess the validity and reliability of the persian version of simons and gaher's distress tolerance scale(dts) by administering it to nicotine dependent students of tehran university.in a descriptive cross-sectional study, 317 nicotine dependent students of tehran university who were selected, using available sampling method, completed dts, coping with stress- revised(cs-r), ...

We consider a quasi-linear parabolic system with respect to unknown functions u and v on a bounded domain of n-dimensional Euclidean space. We assume that the diffusion coefficient of u is a positive smooth function A(u), and that the diffusion coefficient of v is a positive constant. If A(u) is a positive constant, the system is referred to as socalled Keller-Segel system. In the case where th...

the purpose of this paper is to investigate the association between the intellectual capital of firms and their earnings quality. the research was conducted with 158 accepted companies and 948 firm-year observations from iran stock market. empirical studies were conducted based on hypothesis by value added intellectual coefficient as measures of intellectual capital and taking absolute value of...

There is growing evidence that TNF-alpha and its two receptors play an important role in hormonal regulation, metabolism, inflammation and cancer. The biological effects of TNF-alpha are mediated by two receptors, p55 and p75. The aim of this study was to analyze serum concentrations of p55 and p75 and hormonal status in healthy women during the normal menstrual cycle. Eight women aged 20-22 wi...

the aim of this study is to investigate the relationship between social capital among employees with their job performance in tehran's forensic medicine organization. the study population consisted of all the employees of tehran's forensic medicine organization in 2015 that based on available statistics are 120 employees that because of limited statistical population, sampling has not...

A set of easily verifiable sufficient conditions are derived for the existence of a positive (componentwise) solution of a linear nonhomogeneous system of equations in which the coefficient matrix can be partitioned into submatrices with positive elements.