Water temperature is an abiotic master variable for the survival of aquatic organisms. Global warming alters thermal regimes rivers and, thus, poses a threat to freshwater biodiversity. To address impacts water changes related global on fish species in life cycle assessment (LCA), we developed spatially explicit characterization factors (CFs) 207 greenhouse gases under four representative conce...

The toxicity of vinylidene chloride (VDC) was studied in mice and rats exposed to various concentrations of the vapors for 23 hr/day. In addition, the ability of various treatments to alter parameters of toxicity was evaluated. Mice were more sensitive than rats both to the acute lethal and hepatotoxic effects of VDC. Disulfiram treatment reduced the acute lethal and hepatotoxic effects of inha...

By combining elements of two Y-autosome translocations with displaced autosomal breakpoints, it is possible to produce zygotes heterozygous for a deficiency for the region between the breakpoints, and also, as a complementary product, zygotes carrying a duplication for precisely the same region. A set of Y-autosome translocations with appropriately positioned breakpoints, therefore, can in prin...

this study was accomplished to examine the efficiency of natural zeolite in preventing acute toxicity of total ammonia to huso huso. the study was performed using water static method in 96 hours. fish averaged 46 ? 5 g in weight and 22 ? 4 cm in total length were exposed to four different concentrations (15, 30, 50, 75 mgl-1) of ammonia and a group was considered as control. under stable condit...

background: paraquat is a non-selective contact herbicide, widely used to control weeds in agriculture farms and aquatic plants in surface waters. paraquat can have adverse effects on the health of aquatic organisms. the aim of this study was to detect the alterations in the blood biochemical parameters of common carp exposed to sub-lethal concentrations of commercial formulations of paraquat. ...

Theta-defensins are cyclic octadecapeptides encoded by the modified alpha-defensin genes of certain nonhuman primates. The recent demonstration that human alpha-defensins could prevent deleterious effects of anthrax lethal toxin in vitro and in vivo led us to examine the effects of theta-defensins on Bacillus anthracis (Sterne). We tested rhesus theta-defensins 1-3, retrocyclins 1-3, and severa...

Many prey modify traits in response to predation risk and this modification of traits can influence the prey's resource acquisition rate. A predator thus can have a "nonlethal" impact on prey that can lead to indirect effects on other community members. Such indirect interactions are termed trait-mediated indirect interactions because they arise from a predator's influence on prey traits, rathe...

background: acrylamide (c3h5no) is a vinyl monomer. this water-soluble crystalline solid is a colorless, odorless agent which is used in scientific laboratories and some industries. acrylamide has cellular oxidative effects. acute or chronic poisoning with this agent happens as a result of skin, respiratory, or oral contacts. clinical manifestations depend on the dose, duration, and frequency o...