information technology as a new and very efficient tool in human communications has multiple functions that effect on public affair management is one of them. along with growth & spread of such technologies in contemporary world, this function simultaneously has spread & is changing to be an important paradigm in management & regional administration all over the world. in the other hand, good g...

BACKGROUNDS/AIMS Aging of population is leading to more operative treatments on elderly patients in various aspects. Growing numbers of patients are going through operations about cholecystitis in the same sense. We tried to survey them anew about remarkably increasing octogenarian patients and the outcome after operative management for cholecystitis seeking to improve treatment result. METHO...

The patent laws are in the U.S. Constitution dating back from 1790 to 1793 to promote, as articulated by one of the framers, Thomas Jefferson, and protect ‘any new and useful art, machine, manufacture, or composition of matter, or any new or useful improvement thereof ’. Although the U.S. Congress in 1952 replaced the word ‘art’ with the word ‘process’, the Congress, as well as the courts, have...

in the recent years, the relationship between diversification and performance became an important empirical subject in financial management. diversification strategies can affect the competitive balance of an industry. in this survey we are to illustrate the relationship between the two variables of diversification and financial ratios as performance criteria based on accounting through statist...

climate change  is one of the most important challenges in recent years. heavy flood, hot weather, early coldness, most of drought replications, risen of sea water level, pests and plant disease ,reducing of ozone layer thickness, global worming ,and melting ices, are cases that introduced climate change issue in recent decades more. climate is one of the most important  factors for crop  chang...

Life is normally expected to proceed through childhood, youth, adulthood and old age. What happens then if death occurs at some earlier phase of life and not at a far distant time in people’s everyday lives? This will most often be a sudden and unexpected death. How do the nearest family, friends and acquaintances of the deceased cope with this? How and why are new rituals created, how are they...