Grain size analysis is an essential tool for classifying sedimentary environments. The calculation of statistics for many samples can, however, be a laborious process. A computer program called GRADISTAT has been written for the rapid analysis of grain size statistics from any of the standard measuring techniques, such as sieving and laser granulometry. Mean, mode, sorting, skewness and other s...

The aim of this study was comparison satisfaction in athletes of leadership styles in the sport of karate.The research employs descriptive-correlation method.The population of the study, all athletes participating in the 2012 national competition in karate formed two studies (150 patients)from which the sample was taken of all methods Of which 80 were women and 70 were men.This study includes a...