نتایج جستجو برای: magnesium ethoxide

تعداد نتایج: 38146  

Journal: :international journal of advanced biological and biomedical research 2014
mohammad reza sharifi fadiji mojdeh heidari salehabad zahra movahedirad

introduction: calcium critical limit in pistachio plants is about 1.3 percent of plant dried material; magnesium critical limit in pistachio leaves is about 0.6 percent of plant dried material. to measure calcium and magnesium there are several methods in which three methods of titration and atomic absorption that are more common and used to libraries more in addition to icp modern method are u...

Journal: :journal of ultrafine grained and nanostructured materials 2014
mona maddah mohammad rajabi seyed mahmood rabiee

storage of hydrogen is one of the key challenges in developing hydrogen economy. magnesium hydride (mgh2) is an attractive candidate for solid-state hydrogen storage for on-board applications. in this study, 10 wt.% zrb2 was co-milled with magnesium hydride at different milling times to produce nanocrystalline composite powder. the effect of milling time and additive on the hydrogen desorption ...

2014
Martin Konrad Karl Peter Schlingmann

The kidney plays a key role in the maintenance of normal magnesium balance. The distal tubule of the kidney, namely the thick ascending limb of the loop of Henle and the distal convoluted tubule, is crucial for the regulation of serum magnesium levels and body magnesium content. The identification of molecular defects related to rare inherited magnesium losing disorders has contributed greatly ...

Journal: :The Journal of experimental biology 1975
J L Wood A M Jungreis W R Harvey

1. The 28Mg-measured net flux of magnesium from lumen-side to haemolymph-side of the isolated and short-circuited midgut was 1.97 +/- 0.28 mu-equiv cm(-2) /(-1) in 8 mM-Mg2+. 2. The magnesium-influx shows a delay before the tracer steady-state is attained, indicating the existence of a magnesium-transport pool equivalent to 6.7 mu-equiv/g wet weight of midgut tissue. 3. Magnesium depresses the ...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2013
shahin yegane sarkandy, seyed abbas shojaosadati rasool khalilzadeh majid sadeghizadeh,

in order to increase the productivity of human interleukin-2 (il-2) as a model protein in the recombinant e.colibl21 (de3), the effect of magnesium acetate and manganese acetate was studied based on full factorial design experiments magnesium acetate and manganese acetate and their interaction exhibited an increasing effect on il-2 expression level upto 25.24%, 16.80% and 23.30%, respectively, ...

Journal: :Gut 2001
J R Ross P I Dargan A L Jones A Kostrzewski

Introduction—Oral and intravenous replacement of minerals such as magnesium and calcium are usually straightforward in clinical practice, the choice generally being governed by the preparation most readily available. There are very few data comparing eYcacy and absorption profiles of diVerent magnesium salts. This case report highlights the importance of considering alternative preparations of ...

Journal: :The American journal of clinical nutrition 2013
Michel M Joosten Ron T Gansevoort Kenneth J Mukamal Pim van der Harst Johanna M Geleijnse Edith J M Feskens Gerjan Navis Stephan J L Bakker

BACKGROUND Previous studies on dietary magnesium and risk of ischemic heart disease (IHD) have yielded inconsistent results, in part because of a lack of direct measures of actual magnesium uptake. Urinary excretion of magnesium, an indicator of dietary magnesium uptake, might provide more consistent results. OBJECTIVE The objective was to investigate whether urinary magnesium excretion and p...

2016
Adel AA Ismail Nour A Ismail

Magnesium is the fourth most common mineral in the human body after calcium, potassium and sodium. Magnesium must be continuously replenished through foods and water intake because it is not synthesizable. Chronic inadequate intake of magnesium over long period of time can manifest as latent magnesium deficiency with symptoms such as muscle weakness, cramps, fatigue, neurological and cardiovasc...

Journal: :Clinical science 1970
R G King S W Stanbury

1. Magnesium metabolism has been studied in forty-eight patients with primary hyperparathyroidism. Metabolic balance studies were undertaken in forty-three untreated patients and in fifteen patients after parathyroidectomy. The data obtained are compared with the pattern of magnesium metabolism in healthy adults, as established by analysis of collected nutritional studies. The renal handling of...

Journal: :American journal of physiology. Renal physiology 2004
Martin Konrad Karl P Schlingmann Thomas Gudermann

Magnesium is an important cofactor for many biological processes, such as protein synthesis, nucleic acid stability, or neuromuscular excitability. Extracellular magnesium concentration is tightly regulated by the extent of intestinal absorption and renal excretion. Despite the critical role of magnesium handling, the exact mechanisms mediating transepithelial transport remained obscure. In the...

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