Today, the urgent task is synthesis of new nanostructured composite sorbents used for complete utilization various wastes oil and gas refineries, improving technology processes cleaning natural tail exhaust gases from acidic impurities, increasing stability physicochemical properties environmental conditions processing secondary absorbents refineries. Recently, in world industrial enterprises, ...

Organosulfur compounds have been established to possess anticancer effects. To provide a better understanding of the biological function of dimethyl sulfides, dimethyl monosulfide (Me(2)S), dimethyl disulfide (Me(2)S(2)), dimethyl trisulfide (Me(2)S(3)) and dimethyl tetrasulfide (Me(2)S(4)) were used as experimental materials to investigate their effects on apoptosis induction in human leukemia...

NWA 2737, a Martian meteorite from the Chassignite subclass, contains minute amounts (0.010 ± 0.005 vol%) of metal-saturated Fe-Ni sulfides. These latter bear evidence of the strong shock effects documented by abundant Fe nanoparticles and planar defects in Northwest Africa (NWA) 2737 olivine. A Ni-poor troilite (Fe ⁄S = 1.0 ± 0.01), sometimes Cr-bearing (up to 1 wt%), coexists with micrometer-...

A novel variant of endemic pemphigus foliaceus (EPF) was described among individuals in an area surrounding El Bagre, Colombia, South America. The population in this rural mining community is exposed to high environmental levels of mercury, used for gold extraction, as well as other minerals, metalloids, and trace elements (e.g., quartz, rutile, granite, magnetite, and almenite) and ultraviolet...

Carbon nanotubes (CNT) and metal sulfides have attracted considerable attention owing to their outstanding properties and multiple application areas, such as electrochemical energy conversion and energy storage. Here we describes a cost-effective and facile solution approach to the preparation of metal sulfides (PbS, CuS, CoS, and NiS) grown directly on CNTs, such as CNT/PbS, CNT/CuS, CNT/CoS, ...

Semi-massive to massive sulfides with abundant late native sulfur were drilled in a shallowwater hydrothermal system in an island arc volcanic setting at the Palinuro volcanic complex in the Tyrrhenian Sea, Italy. Overall, 12.7 m of sulfide mineralisation were drilled in a sediment-filled depression at a water depth of 630 650 m using the lander-type Rockdrill I drill rig of the British Geologi...

Abstract Primitive extraterrestrial materials are generally dark, a characteristic often associated with the presence of polyaromatic organic material and/or sulfides. We show in this study that reflectance level measured at 0.55 μ m IDPs and some meteorites is correlated to degree graphitization matter. The primitive surfaces therefore allows us obtain information on present surface solar syst...