probiotics, living microorganisms which when used in adequate amounts, have health benefits on the host, have attracted a considerable deal of interest in the biotechnology market. various prokaryotic and eukaryotic microbes have been studied for probiotic purposes in human and animals. lactobacillus and bifidobacterium are the main probiotic genera; however, there are reports on the probiotic p...

background nursing teachers have difficulties fulfilling multiple roles expectations and balancing the various dimensions of their roles that may lead to role strain. in order to lack of culturally and academically proper scale in iran to measure role strain in nursing teachers, localizing a foreign scale in this field is necessary. objectives the objective of this study was psychometric evalua...

conclusions: left ventricular systolic heart failure, may result in inter and intra-atrial asynchrony even in clinically stable patients without significant pulmonary hypertension and diastolic dysfunction. results: in heart failure patients either inter or intra-atrial asynchrony were far more common in comparison with normal subjects (p=0.008 and p=0.007 respectively). patients and methods: t...

abstract introduction: heat stress risk assessment, as a harmful agent at workplace, is essential for controlling heat strain and heat stress effectively. this study is concerned with the relationship between physiological strain index (psi) and wet bulb globe temperature index (wbgt) in women in the climate chamber . methods: this experimental study was carried out on 36 healthy females in sit...

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...