The aim of this study was to evaluate the effect of walnut tree root (Juglandaceae) on Escherichia coli is resistant to various antibiotics. Walnut tree root extract was obtained using a rotary device. 20 cases of E. coli was obtained from urinary tract infections Zabul hospital and MIC and MBC were determined using dilution in the wells. The results of the study showed that the concentrations ...

OST or all individuals of sexually reproducing, diploid and outbreeding species carry in heterozygous condition genetic variants which are deleterious or even lethal in homozygotes. A major open problem of population genetics is to determine how these variants affect the fitness of their heterozygous carriers. Even genes or chromosomes having drastic effects on viability in homozygous condition...

fasciolosis is a cosmopolitan parasitic disease with considerable economic and public health importance. fasciola hepaticais the major cause of fasciolosis in man and domestic animals. although remarkable research works have been done around the optimum temperature and time required for miracidial development, little is known aboutthe exact susceptibility of fasciola hepaticaeggs to high temper...

background: edifenphos, a kind of organophosphate toxins, is used as agricultural fungicides in rice fields. this study was aimed to investigate the effect of temperature on lethal concentration of exposure to edifenphos on rutilus frisii kutum (caspian kutum). methods: the experiment was carried out in static condition and based on instructions of oecd within 10 d under controlled water physic...