The formal expression of pro positional attitudes, especially when nested (iterated), is an important problem for A I . An interesting first-order extensional logical system for such expression has been proposed by Creary. In this system concepts (and concepts of concepts, etc.) are made explicit. The system includes "concept functions", which are special functions which act on and deliver conc...

1. Let us agree on the following notation. Lower-case Latin letters from a to n (inclusively) with indices and without them will be used as variables for nonnegative integers, the remaining lower-case Latin letters will be used as variables for integers. Analogously, lower case Greek letters from to will be used as metavariables for nonnegative integers, and the rest of the Greek letters will b...

investigating sociological factors affecting job alienation this research is a study on the efficient sociological factors on job alienation across elementary school teacher of tehran. the research data was collected through a surveying method, and participants were 380 persons out of 18452 among elementary school teacher of tehran. with consideration of previous research and the theoretical fo...

Background: Neonatal jaundice is an almost common problem among neonates that may cause complications such as kernicterus in severe cases. Since early diagnosis and proper treatment of neonatal jaundice is vital to prevent the related complications, it is necessary to check bilirubin before discharging the neonates. There are several evaluating and diagnostic methods to measure the level of bil...