northwest of shir-kuh batholith, a number of leucocratic granitic and granodioritic plutons have intruded sedimentary hosts including shale-sandstone (triassic-jurassic) and sandstone-conglomerate (lower cretaceous). contact metamorphism and hydrothermal alterations are widespread. late alteration assemblage mainly occurs in arkosic sandstones of sangestan formation and includes propylitic, qua...

in this article we are going to investigate effect of factors effect turnover intention. population is all of employees of education administration of kurdistan province and sample includes 140 people of this population which were selected randomly. competitiveness questionnaire of brown et al.(1198), self efficacy of jones (1986), effort of brown and leigh(1996), performance of babin and boles...

background: current development of surgery is due to medical practitioners and surgeons practices and experiments throughout the history. albucasis, the muslim spanish physician in 10 century ad was one of the pioneers in surgery that had major influence by his innovations in surgical techniques, treatment approaches and invention of instruments. he introduced a type of surgical knife named mok...

inflammatory bowel disease (ibd) is a chronic inflammatory disease affecting the gastrointestinal tract and includes ulcerative colitis and crohn’s disease. during last decades, the incidence of ibd   has increased, both in children as well as in adults (1–3). while the precise etiology of ibd is unknown, inflammatory bowel disease occure due to an abnormal immune response to luminal antigens i...