introduction as a dynamic phenomenon, boundary is one of the basic issues in political geography and geopolitics. it is not a geographical and fixed phenomenon; rather, it has its own internal dynamic features, creates new realities, and affects the lives of people and groups living in its vicinity. different types of boundaries, such as political, social, economic, and virtual can be impenetra...

intergenerational gap refers to the disturbance and crisis in the cultural sequence of generations, which leads to conflict in terms of values and norms between parents and children. until recently, this phenomenon has not been considered a serious issue in iranian society and the continuation of similar thought patterns through the generations has prevented the emergence of distance and variou...

Dividend policy has long been an issue of interest in the financial literature. To date, a number of studies published on agency costs and dividend policy but most of them are on developed markets, It is well known that the emerging markets are quite different from developed markets in all respects. So, the existing published evidence is of limited relevance in identifying the influence of agen...

Inflammatory processes have been shown to be involved in development and progression of neurodegenerative diseases. Mammalian target of rapamycin (mTOR) involves in various cellular processes including autophagy, apoptosis and energy metabolism. Recently, studies have been shown an association between mTOR pathway and inflammation, supporting the role of the pathway in the pathogenesis of infla...

  The process of determining the minimum pass level to separate the competent students from those who do not perform well enough is called standard setting. A large number of methods are widely used to set cut-scores for both written and clinical examinations. There are some challenging issues pertaining to any standard setting procedure. Ignoring these concerns would result in a large dispute ...

The microbial world is complex, dynamic and constantly evolving. Infectious agents reproduce rapidly, mutate frequently, cross the species barrier between animal hosts and humans, and adapt with relative ease to their new environments. Because of these traits, infectious agents are able to alter their epidemiology, their virulence, and their susceptibility to anti-infective drugs. When disease ...

The occurrence of emerging Fusarium mycotoxins beauvericin (BEA), enniatins (ENNs) (A, A1, B, B1), Fusaproliferin and moniliformin was evaluated by a liquid chromatography/electrospray ionization-tandem mass spectrometric (LC/ESI-MS/MS) technique in 65 domestic rice samples produced in Gilan and Mazandaran Provinces in IR Iran. The results showed that 46% of the samples were contaminated with a...

The purpose of this study is to concentrate on the investigation of days-of-week effect on Tehran Stock Exchange and its comparison with other emerging markets. Using Classical Linear Regression (CLR) as well as Autoregressive Conditional Heteroskedasticity (ARCH) models it in indicated has indicated that there is significantly positive total return on Saturdays and significantly negative total...

The occurrence of emerging Fusarium mycotoxins beauvericin (BEA), enniatins (ENNs) (A, A1, B, B1), Fusaproliferin and moniliformin was evaluated by a liquid chromatography/electrospray ionization-tandem mass spectrometric (LC/ESI-MS/MS) technique in 65 domestic rice samples produced in Gilan and Mazandaran Provinces in IR Iran. The results showed that 46% of the samples were contaminated with a...