MONG the widely divergent results obtained from “quantitative A character” crosses one common type is characterized by (a) F1 mean approaching that of the smaller parent strain and (b) positive skewness in the frequency distribution of Fz measurements. Among many examples might be cited crosses involving differences of corolla tube length in tobacco (EAST 1913; SMITH 1937), fruit size in squash...

Catfish of Anzali wetland has been focused economically and commercially. It also meets the religious Minorities needs to fish meat. So, investigation of its health in the wetland is important. This study aimed to investigate the concentration of heavy metals such as cadmium, Nickle, Zinc and lead in muscle tissues of Catfish in three stations (west, central and east) of Anzali wetland in 2012....

Modularity is one of the most prominent properties of real-world complex networks. Here, we address the issue of module identification in two important classes of networks: bipartite networks and directed unipartite networks. Nodes in bipartite networks are divided into two nonoverlapping sets, and the links must have one end node from each set. Directed unipartite networks only have one type o...