objectives: oral infections and dental caries are still considered as serious public health problems and inflict a costly burden to health care services around the world and especially in developing countries. materials and methods: in the present study, we evaluated the antibacterial activity of glycyrrhiza glabra (g. glabra) against oral pathogens by diffusion methods and determined the minim...

background: hepatic steatosis is commonly observed in patients with chronic hepatitis c (chc). many studies indicate a relationship between steatosis and fibrosis progression. the aim of this study was to analyze the prevalence of hepatic steatosis and related factors in iranian chc patients.   methods: one hundred and fifteen consecutive patients with chc were enrolled which were treatment-naï...

monitoring and assessment of water has become environmental concern due to the contamination by man kind. one of the most important crises of the 21st century is the availability of drinking water, a resource basic to our survival and growth. most of the fresh water bodies all over the world are getting polluted thus decreasing the suitability of the fresh water. the area of the study, selected...

actinomycetes are interesting as a main producer of secondary metabolites and industrial antibiotics from marine environments. a total of 44 strains of actinomycetes were isolated from caspian sea sediments at a depth of 5-10 m. preliminary screening was done using cross-streak method against 2 gram-positive and 4 gram-negative pathogen bacteria. the most potent strains mn2, mn3, mn38, mn39, mn...

a study was made of the coking of a commercial fresh sulfide ni-mo/al2o3 catalyst in a fixed-bed reactor. the catalyst was coked using different coke precursors in the gas oil under accelerated conditions at temperatures of 400 to 450°c to yield different deactivated catalysts containing 2-20 wt% c. two cases were studied; crushed catalyst without diffusional resistance and extruded pellets wit...

background and objectives: cancer is a public health problem all over the world. herbal medicines have a vital role in the prevention and treatment of cancer and large numbers of plants and their isolated constituents have shown potential anticancer activity. methods: twenty seven medicinal plants from southern iran provinces have been extracted with methanol and screened for their cytotoxic ac...

background: regular physical activity (pa) has positive effects on physical, psychological and social health in the individual and the community. reduced pa is a major global problem that is increasing in prevalence every day. the present study aimed to determine the status of pa among adolescent girls and their perceptions of obesity prevention. materials and methods: the present descriptive-a...

background: the approaches chosen for control of outbreaks of infectious diseases in aquatic farming industry include improvement of environmental conditions, stocking of specific pathogen free (spf) brood stockings, and application of vaccines and immunostimulants. despite numerous studies on the effects of ergosan on immune system of aquatic animals, there is no data available on antioxidant ...

at present, some clinical presentations and serological parameters such as products of complement activation and elevation of autoantibodies (e.g. dsdna antibodies), erythrocyte sedimentation rate (esr), levels of c-reactive protein (crp), or cytokines such as il-2/il-2 receptor, il-6 and il-10 are used as indirect serological markers with variable degrees of significance. to date, no specific ...

for the first time, on the basis of spitak earthquake experience (armenia, december 1988), it was found that an earthquake causes intensive and prolonged radon releases that are quickly dispersed in the open air and that is why they are not usually registered but contrastingly displayed in covered premises (such as dwelling houses, schools, kindergartens) even if they are at a considerable dist...