An analysis of eight microsatellite loci in 90 individuals was performed to define the genetic structure and variability of three estuarine populations of Coilia mystus: 30 individuals each  collected from ChangJiang River (Yangtze River) estuary-CJ, MinJiang River estuary-MJ, and ZhuJiang River (Pearl River) estuary-ZJ. The results showed polymorphic information contents (PIC) of 0.78, 0.77, a...

different discrete models of population dynamics of certain insects have been investigated under various feasible conditions within the framework of nonlinear dynamics. evolutionary phenomena are discussed through bifurcation analysis leading to chaos. some tools of nonlinear dynamics, such as lyapunov characteristic exponents (lce), lyapunov numbers, correlation dimension, etc. are calculated ...

the aim of this study was to examine the effect of organizational structure on empowering the staff of sport and youth general office of lorestanprovince. the research method was correlation and survey. the statistical population consisted of staff of sport and youth general office of lorestan province (n=58). the sample equaled the population. organizational structure standard questionnaire (r...

Iran has experienced significant changes in the distribution of employed population of ruralareas in major professional categories in the years 1956 to 2006. Accordingly, it is important to studythe changes in occupational structure, factors influencing these changes, and their implications. Themethodology of this study is documentary and secondary analysis. Moreover, in order to explain whythe...