نتایج جستجو برای: zinc metaborate

تعداد نتایج: 73603  

Journal: :journal of family and reproductive health 0
fedyeh haghollahi vali-e-asr reproductive health research center, tehran university of medical sciences, tehran, iran fatemeh ramezanzadeh vali-e-asr reproductive health research center, tehran university of medical sciences, tehran, iran mansoureh norouzi vali-e-asr reproductive health research center, tehran university of medical sciences, tehran, iran mamak shariat maternal-fetal-neonatal health research center, tehran university of medical sciences, tehran, iran atossa mahdavi vali-e-asr reproductive health research center, tehran university of medical sciences, tehran, iran abbas rahimi foroshani department of biostatics & epidemiology, school of public health, tehran university of medical scien

objective: zinc deficiency is an important health problem in developing countries. the aim of this study was diagnosis of zinc deficiency among young female students of tehran university of medical sciences. materials and methods: this cross sectional study evaluated 420 medical and paramedical students of tehran university in 2005. all of them were female and in the first year of their educati...

2017
Dmitri Yakovlev Roman V. Pisarev

Copper metaborate CuB2O4 is a material with a unique crystallographic structure, space group 42m (Z=12), in which magnetic Cu ions occupy two types of nonequivalent positions 4b and 8d. Below the antiferromagnetic ordering at TN = 21 K this material demonstrates a very complicated magnetic phase diagram with commensurate and incommensurate phases [1]. This material also demonstrates very intere...

Journal: :journal of research in medical sciences 0
nazanin roohani soil protection, eth zurich, institute of terrestrial ecosystem, zurich, switzerland richard hurrell department of nutrition, eth zurich, institute of food, nutrition and health, zurich, switzerland roya kelishadi department of pediatrics, child growth and development research center, isfahan university of medical sciences, isfahan, iran rainer schulin soil protection, eth zurich, institute of terrestrial ecosystem, zurich, switzerland

normal 0 false false false en-us x-none ar-sa since its first discovery in an iranian male in 1961, zinc(zn) deficiency in humans is now known to be an important malnutrition problem world-wide. it is more prevalent in areas of high cereal and low animal food consumption. the diet may not necessarily be low in zinc, but its bio-availability plays a major role in its absorption. phytic acid is t...

Journal: :Talanta 2010
Ali Pourmand Nicolas Dauphas

Batch equilibration experiments are conducted to measure the distribution coefficients (K(d)) of a large number of elements in nitric, nitric plus hydrofluoric, and hydrochloric acids on Eichrom TODGA extraction chromatography resin. The K(d)s are used to devise a multi-element extraction scheme for high-precision elemental and isotopic analyses of Ca, Hf, Lu, Th and U in geological materials, ...

Journal: :Food and nutrition bulletin 2004
Kenneth H Brown Juan A Rivera Zulfiqar Bhutta Rosalind S Gibson Janet C King Bo Lönnerdal Marie T Ruel Brittmarie Sandtröm Emorn Wasantwisut Christine Hotz

Chapter 1: Overview of Zinc Nutrition ............................................................................................................... S99 1.1 Biological functions of zinc ............................................................................................................................. S99 1.2 Tissue zinc distribution and reserves .........................................

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1991
B L Vallee J E Coleman D S Auld

We now recognize three distinct motifs of DNA-binding zinc proteins: (i) zinc fingers, (ii) zinc clusters, and (iii) zinc twists. Until very recently, x-ray crystallographic or NMR three-dimensional structure analyses of DNA-binding zinc proteins have not been available to serve as standards of reference for the zinc binding sites of these families of proteins. Those of the DNA-binding domains ...

Journal: :Eukaryotic cell 2007
Claudia Simm Brett Lahner David Salt Ann LeFurgey Peter Ingram Brian Yandell David J Eide

Previous studies of the yeast Saccharomyces cerevisiae indicated that the vacuole is a major site of zinc storage in the cell. However, these studies did not address the absolute level of zinc that was stored in the vacuole nor did they examine the abundances of stored zinc in other compartments of the cell. In this report, we describe an analysis of the cellular distribution of zinc by use of ...

Journal: :Journal of the science of food and agriculture 2012
Smita Gautam Kalpana Platel Krishnapura Srinivasan

BACKGROUND Food acidulants, β-carotene-rich vegetables and sulfur compound-rich Allium spices are known to improve zinc bioaccessibility from food grains. This animal study evaluated the positive influence of these promoters of zinc bioaccessibility on zinc status during zinc repletion in Wistar rats previously rendered zinc-deficient by feeding a zinc-deficient semi-synthetic diet for 4 weeks....

Journal: :The American journal of clinical nutrition 2011
Janet C King

Zinc is essential for multiple aspects of metabolism. Physiologic signs of zinc depletion are linked with diverse biochemical functions rather than with a specific function, which makes it difficult to identify biomarkers of zinc nutrition. Nutrients, such as zinc, that are required for general metabolism are called type 2 nutrients. Protein and magnesium are examples of other type 2 nutrients....

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