as social health is a condition-driven, dynamic and fluid concept, it seems necessary to construct and obtain a national and relevant concept of it for every society. providing an empirical back up for iran's concept of social health was the aim of the present study.this study is an ecologic study in which available data for 30 provinces of iran in 2007 were analyzed. in order to prove construc...

  The aim of the present study was to investigate the population dynamics of Liza klunzingeri, in Hormouzgan province waters located in northern coasts of the Persian Gulf and Oman Sea. This study was carried out from October 2007 to September 2008. samples were collected from commercial stake traps. The relationship between weight and fork length was found to be W= 0.0214 F.L2.8233 suggesting ...

This is an example of an analysis with several possible explanatory variables, none of which is of any special interest a priori. The purpose of the study is to determine which of these variables seems most related to the response variable, and how, in order to suggest possible causal hypotheses as well as to allow prediction. The analysis therefore aims to develop a model which explains the da...

By analysing microscope images of growing colonies, Eric Stewart and his colleagues at the René Descartes University in Paris, France, proved that direct descendants of old-pole cells grew 2 per cent more slowly, were 3 per cent smaller and were more likely to die (PLoS Biology, vol 3, e 45). Nature, does not seem to do immortality, Stewart says. "Never say never, but in natural organisms it se...