نتایج جستجو برای: fe

تعداد نتایج: 78691  

Journal: :The Proceedings of the Nutrition Society 1999
J D Cook

The major liabilities of Fe lack include defects in psychomotor development in infants, impaired educational performance in schoolchildren, increased perinatal morbidity, and impaired work capacity. Few if any of the relevant investigations have demonstrated these abnormalities in the absence of anaemia. Consequently, adequate Fe nutrition can be defined as a normal haemoglobin concentration. O...

Journal: :Plant physiology 1974
R A Christ

The Fe requirements of four monocotyledonous plant species (Avena sativa L., Triticum aestivum L., Oryza sativa L., Zea mays L.) and of three dicotyledonous species (Lycopersicum esculentum Mill., Cucumis sativus L., Glycine maxima (L.) Merr.) in hydroponic cultures were ascertained. Fe was given as NaFe-EDDHA chelate (Fe ethylenediamine di (O-hydroxyphenylacetate). I found that the monocotyled...

Journal: :Public health nutrition 2013
Mohammad Ataur Rahman Bushra Rahman Nessar Ahmed

OBJECTIVE Dietary Fe deficiency has a high incidence in Pakistani children and may be associated with increased gastrointestinal absorption of trace metals such as Mn. Therefore, children residing in heavily polluted cities like Karachi may be prone to Mn toxicity. The present study investigated blood Mn concentrations in Karachi children of different Fe statuses. DESIGN A prospective observa...

2003
David Porta George S. Bullerjahn Kathryn A. Durham Steven W. Wilhelm Michael R. Twiss Michael L. McKay

The complex chemical speciation of Fe in aquatic systems and the uncertainties associated with biological assimilation of Fe species make it difficult to assess the bioavailability of Fe to phytoplankton in relation to total dissolved Fe concentrations in natural waters. We developed a cyanobacterial Fe-responsive bioreporter constructed in Synechococcus sp. strain PCC 7942 by fusing the Fe-res...

2017
Penglei Wang Xin Zhou Yagang Zhang Liping Yang Keke Zhi Lulu Wang Letao Zhang Xinfeng Guo

Nano-dispersed Fe and Fe3O4 on reduced graphene oxide (Fe /Fe3O4-RGO) was prepared and characterized. The prepared Fe/Fe3O4-RGO was used as a magnetically separable Fenton-like catalyst and showed superior catalytic activity compared to Fe3O4-RGO and Fe3O4 as well as other Fenton-like catalysts for the removal of phenol. The Fe/Fe3O4-RGO achieved 100% removal efficiency for phenol within 30 min...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2012
Megan Whitnall Yohan Suryo Rahmanto Michael L-H Huang Federica Saletta Hiu Chuen Lok Lucía Gutiérrez Francisco J Lázaro Adam J Fleming Tim G St Pierre Marc R Mikhael Prem Ponka Des R Richardson

There is no effective treatment for the cardiomyopathy of the most common autosomal recessive ataxia, Friedreich ataxia (FA). This disease is due to decreased expression of the mitochondrial protein, frataxin, which leads to alterations in mitochondrial iron (Fe) metabolism. The identification of potentially toxic mitochondrial Fe deposits in FA suggests Fe plays a role in its pathogenesis. Stu...

2000
E. Girt Kannan M. Krishnan

Magnetization measurements of Nd2Fe172dGad (d50 – 2) show that the saturation magnetization, M s , decreases with an increase in Ga content from 40.4 mB /f.u. for Nd2Fe17 to 36.1 mB /f.u. for Nd2Fe15Ga2 at 4.2 K. Neutron diffraction data at 25 K show that the magnetic moment of Fe depends on its crystallographic site and decreases in the order Fe(6c).Fe(18f )>Fe(18h) >Fe(9d). The magnetic momen...

2005

I . The relative efficacy of oral and parenteral iron administration in the prophylaxis and treatment of Fe-deficiency anaemia of pregnancy has been studied. 2. Intravenous administration of Fe by total dose infusion of Fe dextran was not superior to oral Fe I 20 mg/d, 6 d/week for 1 0 1 z weeks. 3. Intramuscular Fe dextran, 100 mg twice per week for I ~ I Z weeks, produced a significantly grea...

2014
Mingqiang Hu Chengbing Ma Huimin Wen Honghua Cui Changneng Chen

The trinuclear title compound, [Fe3(C3H6S2)2(CO)7], is a mixed-valent Fe(I)/Fe(II) complex and crystallizes with two mol-ecules of similar configuration in the asymmetric unit. The three Fe atoms in each mol-ecule display a bent arrangement [Fe-Fe-Fe = 156.22 (4) and 157.06 (3)°]. Both outer Fe(I) atoms are six-coordinated in a distorted ocahedral coordination geometry defined by the bridging F...

2017
Yuki Kimura Kyoko K Tanaka Takaya Nozawa Shinsuke Takeuchi Yuko Inatomi

The abundant forms in which the major elements in the universe exist have been determined from numerous astronomical observations and meteoritic analyses. Iron (Fe) is an exception, in that only depletion of gaseous Fe has been detected in the interstellar medium, suggesting that Fe is condensed into a solid, possibly the astronomically invisible metal. To determine the primary form of Fe, we r...

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