Dysmenorrhea is among the most common gynecological complaints. There are several mechanisms which initiate dysmenorrhea. Therefore, different compounds can be employed to control its symptoms. NSAIDs such as ibuprofen are highly used in modern medicine to relieve the pain in short-term therapy. This method is not acceptable for long-term therapy due to side effects. Our previous data showed th...

introduction: iron is found in different forms in the soil. in the primary minerals, iron is found as fe3+ or fe2+ which converted to fe2+ and released in unsuitable reduction conditions. minerals such as sulfide or chlorine and bicarbonate can affect and change the different forms soil fe. feas these elements are abundance in groundwater or soil, they are capable to react chemically with fe an...

The knowledge of sulfide capacities FeO-containing slags is necessary for better understanding the resulfurization reaction in hot metal pre-treatments. In this study, copper-iron-sulfur liquid alloy was equilibrated with CaO–SiO2–FeO ternary slag to measure and FeO activities simultaneously at temperature below melting point pure iron. experimental result that capacity increased increasing con...

The possibility of reaction between the liquid iron of the Earth's outer core and crystalline silicates ((Mg, Fe)SiOa) of the mantle, MgO., Feo.•SiOa(pv) + O.15Fe(e) = 0.9MgSi03 (pv)+O.2FeO(hpp)+O.O5FeSi(•)+ O.05Si02(st), was proposed by Knittie and Jeanloz(1989,1991) on the basis of exploratory experiments. We calculate Gibbs free-energies for the reactants and the products of the above reacti...

The existence of food anticipatory activity (FAA) in animals subjected to daily feeding schedules seems to be mediated by a feeding-entrainable oscillator (FEO). Such an FEO may help in anticipating meal time and so optimizing food acquisition and nutrient utilization. In this study we investigated the existence of FAA and whether digestive enzymes, plasma cortisol, hypothalamic NPY and gastroi...

A main obstacle in the rational development of heterogeneous catalysts is the difficulty in identifying active sites. Here we show metal/oxide interfacial sites are highly active for the oxidation of benzyl alcohol and other industrially important primary alcohols on a range of metals and oxides combinations. Scanning tunnelling microscopy together with density functional theory calculations on...

We present the first temperature-dependent rate constants and branching ratios for the reactions of Fe(+) and FeO(+) with C2H2, C2H4, and C2H6 from 170 to 700 K. Fe(+) is observed to react only by association with the three hydrocarbons, with temperature dependencies of T(-2) to T(-3). FeO(+) reacts with C2H2 and C2H4 at the collision rate over the temperature range, and their respective produc...

The chemical nature of the different interfaces and possible segregation effects are studied in fully epitaxial Fe/MgO/Fe s001d oriented heterostructures fabricated by combined sputtering plus laser ablation deposition techniques. Auger electron spectroscopy depth profiling experiments showed that the interfaces of the MgO spacer with the Fe layers are different, the inner MgO/Fe being spatiall...

Growth of graphene by chemical vapor deposition on metal supports has become a promising approach for the large-scale synthesis of high quality graphene. Decoupling of the graphene from the metal has been achieved by either mechanical transfer or intercalation of elements/molecules in between the metal and graphene. Here we show that metal stabilized two-dimensional (2D)-oxide monolayers can be...