Unfortunately, informal payments for health care are responsible for a considerable share of patients' out-of-pocket payments in Iran (1, 2). Almost all health care users and providers are familiar with such payments with the name of “under the table payments” in Iran (3). About half of Iranian health care seekers have faced with such payments at least one time during a year (2). Although the i...

Hydatid disease is caused by Echinococcus granulosus and is endemic in many parts of the world, including Iran. This parasitic tapeworm can produce cysts in almost every organ of the body, with the liver and lung being the most frequently targeted organs. However, the cyst tends to appear in different and sometimes unusual body sites in various geographical areas of the world. This review provi...

In this paper we propose a conditional logic IBC to represent iterated belief revision. We define an iterated belief revision system by strengthening the postulates proposed by Darwiche and Pearl [3]. First, following the line of Darwiche and Pearl, we modify AGM postulates to make belief revision a function of epistemic states rather than of belief sets. Then we propose a set of postulates for...

-we studied the breeding performance of a Grey Eagle-Buzzard (Geranoaetus melanoleucus) population in a region of northern Argentinian Patagonia where two different habitats occur; the mountains near the Andean cordillera and the plains where shrub-steppes predominate. Mean eagle density was 1 pair/l9 km2 (N = 44), with higher densities occuring in the plains (1 pair03.2 km2, N = 17) than in th...