Magnesium based alloys are promising solid materials for hydrogen storage. However, it is a real challenge to synthesise storage with high capacity and low dehydrogenation temperature. Here, we have performed extensively structural searches ternary magnesium-based compounds of ${\mathrm{Mg}}_{7}\mathrm{Nb}{\mathrm{H}}_{n}$ n ranging from 16 25 by calypso method first-principles calculations. We...

The magnitude of the activating effect of ATP on the Ca efflux was explored at different [Ca++]i in squid axons previously exposed to cyanide seawater and internally dialyzed with a medium free of ATP and containing p-trifluoro methoxy carbonyl cyanide phenyl hydrazine. At the lowest [Ca++]i used (0.06 micron more than 95% of the Ca efflux depends on ATP. At high [Ca++]i (100 micron), 50-60% of...

Background: Magnesium ion is critical for life and is integrally involved in cellular function and a key component of normal bone mineral. In health, the kidneys, gastrointestinal tract and bone are responsible for maintaining serum magnesium concentrations in the normal range and magnesium balance. Most clinical disorders involving magnesium, other than chronic kidney disease (CKD), result in ...

Metals and metal compounds are part of our environment. Several metals are essential for physiological functions (e.g., zinc or magnesium); while the beneficial effects of others are uncertain (e.g., manganese), some metals are proven to be toxic (e.g., mercury, lead). Additionally there are organic metal compounds; some of them are extremely toxic (e.g., trimethyltin, methylmercury), but there...

The synthesis and catalytic properties of a series of magnesium compounds consisting of monoanionic, N,N'-chelating ligands (N∩N = amidinates, guanidinates, phosphaguanidinates) is reported. The compounds were synthesized by (i) insertion of a carbodiimide into an existing Mg-C or Mg-N bond, or (ii) protonolysis of an organomagnesium compound by a neutral pre-ligand. Structural analyses of mono...

OBJECTIVE Ethanol treatment induces an increase in oxidative stress. As licorice compounds are potent antioxidants, our aim was to examine whether magnesium isoglycyrrhizinate attenuated lipid peroxidation, the major end-point of oxidative damage resulting from ethanol administration. METHODS Four groups(18 animals in each group) of male Kunming mice were used. The first group served as contr...

Context: In case of diabetes, persistent and chronic hyperglycaemia may generate free radicals and reactive oxygen species (ROS), which trigger an oxidative stress. Garlic (Allium sativum) is a rich source of bioactive compounds and is used in folk medicine for the treatment of various diseases, including diabetes. Besides, α-tocopherol and magnesium have been shown to possess antioxidative pro...

This study aimed to investigate the concentrations effect of some Electrolytes (Sodium, Potassium, and Magnesium) Lipids compounds (Cholesterol, Triglycerides, high density lipoprotein, low very lipoprotein), sex hormones (estrogen testosterone) on atherosclerosis disease. The included a comparison between 60 patients from both male female with heart disease, 40 healthy gender. age ranged (30 -...

Magnesium, the lightest structural metal, needs to improve its strength and formability at room temperature for commercialization. Manganese is an alloying element that can of magnesium through forming intermetallic compounds. However, effect on has not yet been clarified. To identify effect, interatomic potential Mg–Mn binary system developed basis second nearest-neighbor modified embedded-ato...

OBJECTIVES The production of magnesium is a well known source of both aliphatic and aromatic chlorinated compounds, among others the polychlorinated dibenzo-p-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs). The aim of this study was to establish whether increased concentrations of PCDDs and PCDFs could be found in the blood of workers in a magnesium plant. METHODS Blood plasma from...