This study compared magnesium oxide and magnesium citrate with respect to in vitro solubility and in vivo gastrointestinal absorbability. The solubility of 25 mmol magnesium citrate and magnesium oxide was examined in vitro in solutions containing varying amounts of hydrochloric acid (0-24.2 mEq) in 300 ml distilled water intended to mimic achlorhydric to peak acid secretory states. Magnesium o...

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evaluation of magnesium levels in serum and cerebrospinal fluid of patients with febrile convulsion (fc) hospitalized in bahrami hospital in tehran in 2010-2011. in the past, decreased levels of magnesium in serum and csf of patients with fc were reported. the purpose of this study was to identify the possible role of magnesium in febrile seizures in children. identifying this condition, we may...

We perform resonant spectroscopy of erbium implanted into nanophotonic silicon waveguides, finding 1 GHz inhomogeneous broadening and homogeneous linewidths below 0.1 GHz. Our study thus introduces a promising materials platform for on-chip quantum information processing.

The interest in belite (Ca2SiO4 + impurities or dopants) phase increases significantly since new types of clinkers based essentially on this become promising alternatives to Portland clinker for reducing CO2 emission. Belite is also as a biomedical cement. For the cement industry, stabilization β-polymorph essential γ-polymorph has no hydraulic activity. In order understand mechanism stabilizat...

1. In eight patients being treated by chronic dialysis the relation of magnesium metabolism to the magnesium concentration of the dialysate was investigated. During four periods of 2-6 weeks the magnesium concentrations of the dialysis fluid were 0'44±0'15 mg/IOO ml, 0'70±0'24 mg/IOO ml, 1'83±0'18 mg/IOO ml and 1'97±0'21 mg/IOO ml. 2. During all periods the concentration of plasma magnesium and...

Ground-state integer charge transfer is commonly regarded as the basic mechanism of molecular electrical doping in both, conjugated polymers and oligomers. Here, we demonstrate that fundamentally different processes can occur in the two types of organic semiconductors instead. Using complementary experimental techniques supported by theory, we contrast a polythiophene, where molecular p-doping ...

We show by employing density-functional theory calculations (including a hybrid functional) that ZnO surfaces can be stabilized by bulk dopants. As an example, we study the bulk-terminated ZnO (0001̄) surface covered with half a monolayer of hydrogen. We demonstrate that deviations from this half-monolayer coverage can be stabilized by electrons or holes from bulk dopants. The electron chemical ...