نتایج جستجو برای: active calcium carbonate equivalent acce

تعداد نتایج: 746456  

Journal: :Nephron. Clinical practice 2012
João M Frazão Teresa Adragão

Phosphate-binder therapy for hyperphosphataemia is key to the treatment of patients with chronic kidney disease (CKD)-mineral and bone disorder (MBD). Calcium-free phosphate binders are increasingly favoured since calcium-based agents potentially cause harmful calcium overload and vascular calcification that confound the benefits of reducing serum phosphorus. Several calcium-free phosphate bind...

Ali Chaparian, Mohammad Ali Oghabian Vahid Changizi

Introduction Individual X-Ray diffraction patterns of biological tissues are obtained via interference of coherent scattering with their electrons. Many scientists have distinguished normal and cancerous breast tissue, bone density, and urinary stone types using the X-Ray diffraction patterns resulting from coherent scattering. The goal of this study was to introduce an optimized method for obt...

2013
Hiroaki Onoda Hironari Nakanishi

Oyster shells have received attention for use as a calcium resource. For this study, calcium phosphate was prepared from phosphoric acid and oyster shells. The influences of the concentration of phosphoric acid and pH in the preparation conditions were studied from the yields of calcium phosphate and unreacted carbonate, and the Ca/P ratios in precipitates. The yield of calcium phosphate and ca...

Journal: :Journal of nutritional science and vitaminology 1999
K Ishitani E Itakura S Goto T Esashi

Recent dietary life involves frequent opportunities for the ingestion of purified, processed food products and preserved foods, and it has been pointed out that the current dietary mineral intake strongly tends toward nutritional imbalance. The Ryukyu Islands yield coral which contains calcium and magnesium in a content ratio of about 2 to 1, with their approximate contents of 20 and 10%, respe...

Journal: :Chemical communications 2013
Hai-Dong Yu Si Yin Tee Ming-Yong Han

We demonstrate a novel approach for synthesizing porosity-controlled calcium carbonate by one-step thermal decomposition of various calcium carboxylate derivatives as well as their mixtures with different molar ratios. By varying the volume content of calcium in the calcium compounds or mixtures, the resulting porous calcium carbonate exhibits distinct porosity and structures that are very prom...

2015
Shiping Wei Hongpeng Cui Zhenglong Jiang Hao Liu Hao He Nianqiao Fang

Biomineralization is a known natural phenomenon associated with a wide range of bacterial species. Bacterial-induced calcium carbonate precipitation by marine isolates was investigated in this study. Three genera of ureolytic bacteria, Sporosarcina sp., Bacillus sp. and Brevundimonas sp. were observed to precipitate calcium carbonate minerals. Of these species, Sporosarcina sp. dominated the cu...

Journal: :iranian journal of toxicology 0
علیرضا عبدالهی نطنزی ali reza ebadollahi natanzi the institute of applied scientific education of jihad-e- agriculture, karaj, iran. شیما محمودیان shima mahmoudian tehran university of medical sciences, tehran, iran. حمیدرضا رحیمی hamid reza rahimi tehran university of medical sciences, tehran, iran. مسلم محمودپور moslem mohammadpour the institute of applied scientific education of jihad-e- agriculture, karaj, iran.

background: this study investigated the effects of some important meteorological parameters and filler type compounds on phytotoxicity of captan in peach trees in the north of iran. captan is a phthalimide fungicide which has frequently been used in northern regions of iran to control certain plant diseases. this fungicide has caused intense phytotoxicity in peach trees which was first observed...

Journal: :Nephron. Clinical practice 2006
Alastair J Hutchison Bart Maes Johan Vanwalleghem Gernot Asmus Elfatih Mohamed Roland Schmieder Wolfgang Backs Rene Jamar Andre Vosskühler

BACKGROUND Control of serum phosphate over the long term is essential in patients with end-stage renal disease. Six-month and 2-year extensions to a 6-month study evaluated the long-term safety, tolerability and efficacy of the new phosphate binder lanthanum carbonate. METHODS Patients who participated in a 6-month, randomized trial comparing lanthanum carbonate with calcium carbonate were el...

2016
Hai V. Nguyen Saideep Bose Eric Finkelstein

BACKGROUND Sevelamer is an alternative to calcium carbonate for the treatment of hyperphosphatemia among non-dialysis dependent patients with chronic kidney disease (CKD). Although some studies show that it may reduce mortality and delay the onset of dialysis when compared to calcium carbonate, it is also significantly more expensive. Prior studies looking at the incremental cost-effectiveness ...

In this article, the role of nano-size calcium carbonate in penetration resistance of medium- density polyethylene (PE) was investigated through experiments. In order to study the penetration resistance of PE and its nanocomposites, perforation test was carried out. The results of tests showed that penetration resistance depends strongly on calcium carbonate amount. As a matter of fact, additi...

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