Heavy metal pollutions of aquatic ecosystems have already raised many concerns on aquaticorganisms’health and survival especially on their sperm. The effects of a single metal on sperm may be totallydifferent from cocktail of several metals because of their interactions, so the effects of zinc, cadmium andcalcium on the trout and carp sperms and their competition have been examined by incubatio...

The solubility of Pt in CO-CO2 fluid was studied experimentally at P = 50–200 MPa and T 950 °C. A mixture MgC2O4 MgCO3 used as a source the fluid. Upon reaction capsule walls fluid, carbonyl platinum is formed. use high-temperature quartz ceramics trap avoids effect mechanical contamination with from eroded walls. total content porous traps measured by Electrothermal Atomic Absorption (ET-AAS) ...

The ONYX program is designed to fill the need for planning in application areas where traditional planning methodology is difficult to apply. While the program being developed will assist with the planning of cancer therapy, its architecture is intended to be of use whenever goals are ill-specified, plan operators have uncertain effects, or tradeoffs and unresolvable conflicts occur between goa...

in order to investigate the impact of foliar zn application in reducing the negative effects of water stress on bean growth and yield, a field experiment was carried out in the research field of ilam university in 2011. the experiment was arranged in split factorial based on a randomized complete block design with three replications. the experimental factors were water stress including water wi...

a r t i c l e i n f o Keywords: Large Igneous Province atmospheric carbon dioxide Triassic–Jurassic CO 2 chemical weathering Recent evidence from the ~201.5 Ma Central Atlantic Magmatic Province (CAMP) in the Newark rift basin demonstrates that this Large Igneous Province produced a transient doubling of atmospheric pCO 2 , followed by a falloff to pre-eruptive concentrations over ~300 kyr. Thi...

Lead (Pb) is one of the most hazardous heavy metal that caused serious problems for ecosystem at recent years. In this study, the effect of Pb on seed germination, incipient growth and antioxidant enzymes of six common used turfgrasses was investigated. The results showed that after implementation of different concentrations (0, 1000, 2000 and 3000 µM) of Pb, Agropyron elongatum exhibited the h...