purpose: risk factors of pelvic inflammatory disease can be different in different countries because of different sexual behaviors and religious restrictions. this study investigated the risk factors of this disease in iranian women in tehran. materials and methods: in this cross-sectional, descriptive study 1104 women with pelvic inflammatory disease were assessed from may 2010 to march 2011. ...

current study was initiated to generate the information on the effect of row-to-row distance of brassica crop, brassica napus l., on aphids population. three line spacing (20, 30 and 40 cm) with a constant nine cm plant to plant distance were evaluated on aphids infestation and its impact on seed yield. the collected and edited data on fixed parameters indicated that an inverse relation was fou...

fast development of aquaculture and increasing fish demand lead to intensification of fish culture, magnifying stressors for fish and thus heightening the risk of disease until now, chemotherapy has been widely used to prevent and treat disease outbreaks, although use of chemical drugs has multiple negative impacts on environment and human health e.g. resistant bacterial strains and residual ac...

conclusions health managers in iran should continuously monitor the coverage of vaccination with at least three doses of opv in the level of over 95%, monitor the health of the helmand river water which comes from afghanistan to iran, vaccinate the immigrants and replace bivalent vaccine (bopv) with trivalent (topv) vaccine. context the wild polio virus is disrupted in all countries in the worl...

natural plant extracts / products have the potential as safe alternatives for chemical fungicides in plant disease management. methanol and pure methanol: water (50:50 v/v) extracts of peppermint, lavandula, eucalyptus, datura and nettle were screened for their antifungal activity against alternaria sesami, the causal agent of alternaria leaf spot of sesame at 5, 10 and 15% concentrations in sh...

the impact of installing process control systems can be expected in terms of performance improvements through reduced operating costs.  since these installations impose considerable capital expenditure, the profitability of the new systems should be economically justified. controlled variable trend was reconstructed by a combination of simple waves, which provided a means to simulate the effect...