heat stress is an important and serious threat at work and is a particular concern in outdoor occupational environments. this study aims at comparing heat stress and heat strain at different outdoor groups, examining the protective and adaptive actions which were done by workers and also provi services to them by government or employer to reduce heat load. this cross–sectional study was conduct...

phytophthora root and crown rot of soybean is known as a destructive disease of soy-bean both through out the world and in iran. physiologic races of phytophthora soja were determined in this research and also a fast, accurate and simple method for inoculation of soybean to test race specific resistance. during the years　2001-4, infected soybean plants at different growth stages were collected ...