Because the chiral-odd structure function h 1 will be measured in the polarized Drell-Yan process, it is important to predict the behavior of h 1 before the measurement. In order to study the Q 2 evolution of h 1 , w e discuss one and two l o o p anomalous dimensions which are calculated in the Feynman gauge and minimal subtraction scheme.

More often than not, bad decisions are bad regardless of where and when they are made. Information sharing might thus be utilized to mitigate them. Here we show that sharing information about strategy choice between players residing on two different networks reinforces the evolution of cooperation. In evolutionary games, the strategy reflects the action of each individual that warrants the high...

The Bush administration’s military war on terrorism is a blunt, ineffective, and unjust response to the threat posed to innocent civilians by terrorism. Decentralized terrorist networks can only be effectively fought by international cooperation among police and intelligence agencies representing diverse nation-states, including ones with predominantly Islamic populations. The Bush administrati...

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This paper reviews Axelrod's work on the evolution of cooperation in terms of the generality of his findings. It is argued that while his results are to some degree sensitive to changes in the parametric assumptions he made, his and subsequent work provide a valuable general framework for the analysis of the conditions promoting cooperative play. In addition, this literature makes important met...

awareness of the perception of farmers toward cooperation is an important step for developing the role of cooperatives in rural economy. the purpose of this descriptive-correlational study was to investigate perception of farmers toward cooperation. the statistical population for the study consisted of farmer heads of families in the rural society of kermanshah township (n=24391). three hundred...