The focus of the present study is on financial markets Iran. In fact, purpose to examine critical state Iranian stock market and compare it with one famous American called Dow Jones. crisis effect interaction companies within a market. According modern theory, phenomenon orientation finding negative preferred direction among companies. data 180 this that were active during period 2008 2019 used...

Organ shortage for transplantation remains a worldwide serious problem for kidney patients with end-stage renal failure, and several countries have tried different models to address this issue. Iran has 20 years of experience with one such model that involves the active role of the government and charity foundations. Patients with a desperate demand for a kidney have given rise to a black marke...

The uranium (238U) decay series provides the most important isotopes of elements radium (226Ra), radon (222Rn), and polonium (210Po) with half-lives of about 1600 years, 3.8 days, and 140 days, respectively. Although the chemical structure of radium is very similar to calcium, the fact that it produces a radioactive gas (radon) complicates its handling in the laboratory and natural environment....

OBJECTIVES Cephalometric norms of McNamara analysis have been studied in various populations due to their optimal efficiency. Dolphin cephalometric software greatly enhances the conduction of this analysis for orthodontic measurements. However, Dolphin is very expensive and cannot be afforded by many clinicians in developing countries. A suitable alternative software program in Farsi/English wi...

OBJECTIVES The primary objective of this study was to determine whether local and imported cigarette brands used in , have elevated levels of metals or not. The produced data of cigarette brands are compared both with each other and with the existing brands in different countries. MATERIALS AND METHODS In present study, nineteen various cigarettes brands were randomly purchased from the comme...

this article contains an analysis of the iranian, german and austrian law of shares as securities. stocks are issued to the capital market with a view for them to circulate among market participants. iranian legal scholarship has seen a debate on the nature of shares. some classify them as property while other classifies them as obligations. the distinction is of interest because certain rules ...

Job Market Signaling and Employer Learning This paper extends the job market signaling model of Spence (1973) by allowing firms to learn the ability of their employees over time. Contrary to the model without employer learning, we find that the Intuitive Criterion does not always select a unique separating equilibrium. When the Intuitive Criterion bites and information is purely asymmetric, the...