background : muscle cramps are painful manifestations that occur in many cirrhotic patients. this study aims to evaluate the risk factors for developing muscle cramps. materials and methods: this cross-sectional study evaluated 24 cirrhotic patients (18 male, 6 female) during 15 months. patients underwent careful examinations administered by the same person to determine the underlying cause of ...

Visualization is an emerging discipline practiced by skilled artisans who are hand-crafting the current systems. In the process of constructing many displays of abstract corporate data, we have distilled some aspects of the successful displays into a set of guidelines for creating perceptually eeective visualizations. By describing our guidelines, illustrating their usage with several novel exa...

abstract by using cross-section data which gathered through a survey research in mashhad ,contingent valuation approach and tobit model this study tries to determine economical value of air pollution and effective factors on wtp. based on contingent valuation approach, air pollution total value of airpollution in high-polluted region equals 7134146560 rials per month and in middle-polluted regi...

the present research aims to investigate and rank which affect and re affected by employees’ psychological empowerment in order to help organizations and their employees to be more committed to their jobs by accessing resources and feeling control and ownership and use initiative in their works in order to do works well so that their effectiveness and efficiency within organization will be impr...

erosion is one of the important social-economic problems in iraniancatchments that have been posed by surface water vastness and runoff production. so, thestudy of water resources, soil erosion and effective factors is of high importance. gullyerosion also extends in many parts of iran and its study particularly in viewpoint ofsediment yield is therefore very important and should be taken into ...