Mg(2.56)V(1.12)W(0.88)O(8) crystals were grown from a MgO/V(2)O(5)/WO(3) melt. X-ray single-crystal diffraction studies revealed that it is orthorhombic with space group Pnma, a = 5.0658(5) A, b = 10.333(1) A, c = 17.421(2) A, Z = 6, and is isostructural with Mg(2.5)VMoO(8). Raman spectra are reported, and the assignment of the Raman bands is made by comparing the metal-oxygen vibrations of VO(...

The heavy metal changes of Okpoka-Woji River serving as a sink of effluent of industries located in its vicinity within the Trans Amadi Industrial area were monitored over rainy and dry season months in order to follow the seasonal dynamics engendered by the dumping. Sediment samples from six sampling stations located along the river were collected for the determination of heavy metals. The mea...

A metal-mediated base pair, composed of two ligand-bearing nucleotides and a bridging metal ion, is one of the most promising components for developing DNA-based functional molecules. We have recently reported an enzymatic method to synthesize hydroxypyridone (H)-type ligand-bearing artificial DNA strands. Terminal deoxynucleotidyl transferase (TdT), a template-independent DNA polymerase, was f...

AIM Technologies involved in roasting coffee beans, as well as the methods used to prepare infusions, vary according to culture, and contribute to differences in the concentration of elements in the drink. MATERIALS AND METHODS Concentrations of six elements: manganese (Mn), cobalt (Co), nickel (Ni), chrome (Cr), silver (Ag) and lead (Pb) were investigated in coffee infusions from eleven samp...

Context. The stellar abundance ratio of Mg/Fe is an important tool in diagnostics of galaxy evolution. In order to make reliable measurements of the Mg abundance of stars, it is necessary to have accurate values for the oscillator strength ( f -value) of each of the observable transitions. In metal-poor stars the Mg i 3p–4s triplet around 5175 Å (Fraunhofer’s so-called b lines) are the most pro...

Context. The stellar abundance ratio of Mg/Fe is an important tool in diagnostics of galaxy evolution. In order to make reliable measurements of the Mg abundance of stars, it is necessary to have accurate values for the oscillator strength ( f -value) of each of the observable transitions. In metal-poor stars the Mg i 3p–4s triplet around 5175 Å (Fraunhofer’s so-called b lines) are the most pro...

cyanide (cn ) is a toxic species that is found predominantly in industrial effluents generated by metallurgical operations. cyanide’s strong affinity for metals makes it favorable as an agent for metal finishing and treatment and also as a lixiviate for metal leaching, particularly gold. these technologies are environmentally sound but require safeguards to prevent accidental spills from cont...

The wetlands of the Magela floodplain of northern Australia, which is the major sink for dissolved metals transported in the Magela Creek system, contain acid-sulfate sediments. The rewetting of oxidized acid-sulfate soil each wet season produces acidic pulses that have the potential to alter the bioavailability of sediment-associated metal contaminants. Acute toxicity tests (72-h mean lethal c...

24 TRPM7 channel-kinase is a protein highly expressed in cells of hematopoietic lineage, 25 such as lymphocytes. Studies performed in native and heterologous expression 26 systems have shown that TRPM7 forms non-selective cation channels functional in the 27 plasma membrane and activated upon depletion of cellular Mg. In addition to internal 28 Mg, cytosolic pH and the phospholipid PI(4,5)P2 ar...