thymoma is the most common neoplasm of anterior mediastinum with incidence peaks during the fourth, fifth and sixth decades of life. two-thirds of patients are asymptomatic and identified accidentally by chest x-rays . of the total, 40-70 % of patients have one or more parathymic syndromes of which myasthenia gravis (mg) is the most common and reported in 10-50% . gullain-barre syndrome (gbs) h...

conclusions there was a significant association between pms scores and the prevalence of metabolic syndrome. further studies are needed to confirm and validate the relationships between lipid profile abnormalities and metabolic disorders with pms. objectives this study was designed to investigate the association of hormonal and metabolic factors with pms among iranian women of reproductive age....

severe overgrowth and tallness is very rare in human beings. the most common cause is gigantism due to the excessive secretion of the growth hormone, especially, before the closure of long bones’ epiphyseal growth plates. there are other rare disorders that are categorized on overgrowth syndromes. herein, we report an extremely rare, or even perhaps a unique, patient from iran. the clinical and...

We incorporate reference-dependent worker behavior into a search-matching model of the labor market, in which firms have all the bargaining power and productivity follows a log-linear AR(1) process. Motivated by Akerlof (1982) and Bewley (1999), we assume that existing workers’ output falls stochastically from its normal level when their wage falls below a "reference point", which (following Kő...

We consider a repeated interaction between a long-run player and a sequence of short-run players, in which the long-run player may either be rational or may be a mechanical type who plays the same (possibly mixed) action in every stage game. We depart from the classic model, exemplified by Fudenberg and Levine [4, 5], in assuming that the short-run players make inferences by analogical reasonin...

This paper discusses a common criticism of economic models that depart from the standard rational-choice paradigm namely, that the phenomena addressed by such models can be “rationalized” by some standard model. I criticize this criterion for evaluating bounded-rationality models. Using a market model with boundedly rational consumers due to Spiegler (2006a) as a test case, I show that even whe...

User profiles, which personalize applications, are an important factor in designing on-line computer systems. This study targets user profiles to better understand the interactive process of users and consultants in social science research studies. Definition of such profiles should be a basis for designing an electronic consulting system. The results of an empirical survey of both users and st...

In this paper we consider the following two-period problem of self-control. In the first period, an individual has to decide on the set of feasible choices from which she will select one in the second period. In the second period, the individual might choose an alternative that she would find inferior in the first period. This eventuality need not occur with certainty but might be triggered by ...

macrophage activating syndrome (mas) is a life-threatening disease seen in autoimmune diseases including lupus erythematosus, rheumatoid arthritis, still's disease, polyarteritis nodosa. it is characterized by fever, pancytopenia, liver failure, coagulopathy, and neurologic symptoms and high serum ferritin. a 27 yr. old female patient was admitted in shahid mostafa khomeini hospital (tehra...