a survey was carried out in five provinces of iran (kerman, sistan and baluchestan, hormozgan, khorasan and yazd) for the presence of alfalfa mosaic virus (amv) sero-types in alfalfa during 2002 to 2003. the number of samples collected was 250, represent-ing the diversity and geographical distribution of amv in these areas. diagnosis was car-ried out using polyclonal (pabs) and monoclonal (mabs...

background the search for novel antibiotics continues to be of immense importance in research programs around the world for pharmaceutical, industrial and agricultural applications. filamentous soil bacteria, belonging to the streptomyces genus, are widely used as an important biological tool for their ability to produce a wide range of novel secondary metabolites, such as “antibiotics”. object...

background : in many jobs, individuals are exposed to thermal stress, and thus, evaluation of heat stress is necessary. this study was conducted with the purpose of investigating the relationship of perceptual strain index (pesi) with other heat indexes under hot laboratory conditions. methods: this empirical-experimental and cross-sectional study was performed in 5 different temperatures (21 º...

stressful life events may play an important role in coronary heart disease and sudden cardiac death. this study was performed to compare the frequency of stressful events and mental strain in patients with acute myocardial infarction (mi) and normal population. a case-control study was performed on 50 survivors of mi and 50 controls with no evidence of cardiovascular disease, matched by age, ge...

Shiga toxin-producing Escherichia coli (STEC) is responsible for several food-borne outbreaks worldwide. In this study, tissue samples of finfish (tilapia, n = 100) and (mullet, 100), twenty human hand swabs from fish sellers fishermen were tested bacteriologically STEC presence. Isolates their antibiotic susceptibility examined the presence eaeA,stx1, stx2 genes. E. identified tissues (36.5% 1...