background and objectives: the development of molecular biological techniques provide a method for direct detection and identification of pathogens. this study attempted to compare bacterial culture and pcr to detect s. agalactiae in cattle milk samples. the pcr method was based on using primers v1 and v2 derived from the 16s rrna gene. materials and methods: one hundred milk samples were colle...

escherichia coli o157:h7 is an important human pathogen causing haemorrhagic colitis, haemolyticuraemic syndrom and thrombotic thrombocytopenic purpura. in this study, 100 ground beef samples were collected randomly from beef markets in june 2004. for isolation of the bacteria, samples were firstly enriched in modified trypticase soy broth, followed by plating onto sorbitol macconkey agar suppl...

one of the important bottle-necks in production of microalgae based biodiesel is thelack of an efficient method for harvesting of microalgae from the culture medium. in thisstudy, the electroflocculation method was developed for harvesting of microalgaedunaliella cells from culture medium. the effect of several parameters such as thecurrent density, electrical conductivity of culture medium, ti...

a total of 60 neck skin swab samples were taken from 12 different broiler flocks after the chilling stage of processing at a commercial broiler slughtering facility in mashhad. the presence of salmonella was assessed by conventional culture method and confirmed by using poly o and poly h antiserum in serotyping. pcr amplification of inva gene as a specific method for detection of salmonella was...

objective(s) rapid tests for detection of streptococcus agalactiae or group b streptococci (gbs) at the onset of labor are needed to permit early intrapartum antibiotic prophylaxis. this study aimed to evaluate the pcr assays targeting the 16s ribosomal rna gene (16s rdna) for detection of the gbs in comparison with a specific culture method. materials and methods two swabs were used to obtain ...

this study investigated aligning organizational culture and staffing process of human resource management in the insurance company of iran. this study examined the impact of organizational culture types in quinn competing values framework model on staffing process of human resource management. statistical population encompassed 320 members of supervisors, middle managers, and senior managers in...