Application of gravity and magnetic separation methods to upgrade low grade Manganese ores from Venaj Mine has been reported elsewhere. This paper discusses the results of flotation tests, as well as combination of flotation and magnetic method to concentrate fine particles (less than 150 microns) of manganese ore. Results obtained from various direct and reverse flotation tests, using differen...

Manganese-containing superoxide dismutase (SOD2) plays a critical role in guarding against mitochondrial oxidative stress and is essential for survival of many organisms. Despite the recognized importance of SOD2, nothing is known regarding the mechanisms by which this nuclear-encoded protein is converted to an active enzyme in the mitochondrial matrix. To search for factors that participate in...

Cenococcum graniforme, Suillus luteus, Thelephora terrestris, and three isolates of Pisolithus tinctorius were cultured on modified Melin-Norkrans medium at pH 3.4 and adjusted to 0 to 500 ppm (0 to 500 mug/ml) of aluminum or manganese sulfate. Except for T. terrestris, which was intolerant of aluminum at 150 and 250 to 500 ppm, and P. tinctorius isolate 250, which was intolerant of aluminum at...

SEPTEMBER 2006 -s 200 ABSTRACT. The relationship between alloying content, microstructure, and properties has been clarified for highstrength steel weld metals with 7 to 9 wt-% nickel. Neural network modeling suggested that manganese reductions and nickel additions in a controlled manner with respect to manganese lead to increased impact toughness. Carbon additions were predicted to enhance yie...

Electric arc furnace dust (EAFD) of ferromanganese production units, in the form of slurry, contains tar, alkalies, manganese, zinc, iron, silica, calcium, aluminum and other elements. A hydrometallurgical route based on solvent extraction technique was investigated for selective separation of manganese from the dust. Leaching of the EAFD resulted in an aqueous feed containing 4 g/L of manganes...

Manganese is a trace element with important involvement in the central nervous system functioning. The effects of manganese excess on central dopaminergic system in case of both basal nuclei and reward system are linked to important pathologic states such as Parkinsonism and cognitive impairment. Our data show that Mn2+ reduces the intensity of experimental morphine addiction in rats (manganese...

In the present study manganese oxidizing bacteria (MOB) were isolated and identified using molecular techniques (16S rRNA gene sequencing) and the electrochemical behaviour of these isolates on orthodontic wires was studied by employing polarization and impedance techniques. Staphylococcus aureus (EF516983), Bacillus pumilus (EF516984), Planococcus rifitioensis (EF516985), Lysinibacillus boroni...

Uniform manganese hexacyanoferrate hydrate nanocubes are prepared via a simple chemical precipitation method at room temperature. Due to both micro/mesopores of the Prussian blue analogue and nanocubic structures, the manganese hexacyanoferrate hydrate nanocubes allow the efficient charge transfer and mass transport for electrolyte solution and chemical species. Thus, the manganese hexacyanofer...

This study evaluated the effects of a manganese peptide complex in the treatment of various signs of cutaneous facial photodamage. Individuals used a facial serum formulation containing the manganese peptide complex Manganese Tripeptide-1 twice a day for up to 12 weeks. At the end of the treatment period, the individuals and a blinded investigator noted improvement in the appearance of several ...

The activities of manganese in Mn-C and Mn-Si melts at 1673K have been determined. The transportation method was applied to the vapor pressure measurement. The activities of manganese in the Mn-C melts as referred to pure liquid manganese showed the positive deviation from ideality at less than 0.17 atomic fraction of carbon and deviated negatively above this value. The activities of manganese ...