Barley (Hordeum vulgare) genotypes display a marked difference in their ability to tolerate growth at low manganese (Mn) concentrations, a phenomenon designated as differential Mn efficiency. Induction of Mn deficiency in two genotypes differing in Mn efficiency led to a decline in the quantum yield efficiency for both, although faster in the Mn-inefficient genotype. Leaf tissue and thylakoid M...

The effects of Mg additions on the Fe-containing intermetallic compounds and heterogeneous nucleation ?-Al were investigated in Al-1.4Fe-0.7Mn- x alloys using scanning electron microscopy (SEM) transmission (TEM). experimental results show that morphology Al 6 (Fe,Mn) eutectic structure was significantly modified from needle-like to plate-like then Chinese Script with increasing concentration. ...

background: a radioprotective effect of amifostine as well as its ability to modulate the level of spontaneous and gamma-irradiation-induced genetic changes on human peripheral blood lymphocytes has been investigated . amifostine, known as a potent radical scavenger, has been introduced as the most effective radioprotector, yet it is not completely approved for the clinical use. however, furthe...

background: biomonitoring provides a useful tool to estimate the genetic risk from exposure to genotoxic agents. the aim of this study was to assess the potential cytogenetic damage associated with occupational exposure to hexavalent chromium by using micronuclei (mn) as a biomarker. methods: this was a cross-sectional study and all participants were males. both the exposed and control individu...

Designing and developing the Mg alloys with low cost high performance is of great significance. Novel Mg-1Bi-xMn (x = 0, 1 2 wt.%) extruded alloys, in this work, were fabricated at different extrusion temperatures (220, 250 300 °C). The effects temperature Mn addition on microstructures mechanical properties room investigated. results showed that decreasing could refine average grain size, weak...