advantages and disadvantages of hospital information systems in teaching hospitals of urmia university of medical sciences     jebraeily m [1] *, raheimi b [2] , zareh z [3] , dolani a [4]     received: 18feb, 2012 accepted: 22may, 2012     abstract   background & aims : the critical requirement of healthcare services on information and also disabilities of paper chart to meet these serious nee...

Adverse experiences in early life can exert powerful delayed effects on adult survival and health. Telomere attrition is a potentially important mechanism in such effects. One source of early-life adversity is the stress caused by competitive disadvantage. Although previous avian experiments suggest that competitive disadvantage may accelerate telomere attrition, they do not clearly isolate the...

This paper describes how we parallelized a benchmark problem for parallel simulation, the Sharks World. The solution we describe is conservative, in the sense that no state information is saved, and no "rollbacks" occur. Our approach illustrates both the principal advantage and principal disadvantage of conservative parallel simulation. The advantage is that by exploiting lookahead we find an a...

We study an individual-based model in which two spatially distributed species, characterized by different diffusivities, compete for resources. We consider three different ecological settings. In the first, diffusing faster has a cost in terms of reproduction rate. In the second case, resources are not uniformly distributed in space. In the third case, the two species are transported by a fluid...

We assess the comparative advantage and protection of China’s major agricultural crops using a modified Policy Analysis Matrix (PAM) and 1996 to 1998 data. We consider the following commodities: early indica rice, late indica rice, japonica rice, south wheat, north wheat, south corn, north corn, sorghum, soybean, rapeseed, cotton, tobacco, sugarcane, and a subset of fruits and vegetables. Consi...

The event calculus was proposed as a formalism for reasoning about time and events. Through the years, however, a much simpler variant (SEC) of the original calculus (EC) has proved more useful in practice. We argue that EC has the advantage of being more general than SEC, but the disadvantage of being too complex and in some cases erroneous. SEC has the advantage of simplicity, but the disadva...