نتایج جستجو برای: copper zinc deposit

تعداد نتایج: 162956  

Journal: :Astrobiology 2013
Pablo Sobron Charles N Alpers

The Iron Mountain Mine Superfund Site near Redding, California, is a massive sulfide ore deposit that was mined for iron, silver, gold, copper, zinc, and pyrite intermittently for nearly 100 years. As a result, both water and air reached the sulfide deposits deep within the mountain, producing acid mine drainage consisting of sulfuric acid and heavy metals from the ore. Particularly, the draina...

2012
Bemnet Amare Ketema Tafess Feleke Moges Beyene Moges Tomoki Yabutani Fusao Ota Afework Kassu

Introduction: Zinc and copper are essential for normal human development and functioning of the body. They have been implicated to play important roles in immuno-physiologic functions. Studies assessing the interactions between diarrheal diseases, HIV/AIDS and micronutrient status are too few in Ethiopia, as in other sub-Saharan Africa where morbidities from diarrheal diseases and HIV/AIDS are ...

Journal: :Alcohol and alcoholism 2002
E González-Reimers F Santolaria-Fernández P Garrido-Benedicto M C Durán-Castellón L Galindo-Martín A Martínez-Riera J Viña-Rodríguez M J de la Vega-Prieto

This study was performed in order to determine the relative and combined effects of ethanol, a low protein diet and steroid treatment on bone, muscle, liver, and urinary and faecal excretion of zinc, copper and iron in 64 rats divided into eight groups treated following the Lieber-DeCarli liquid diet technique, with and without dexamethasone, 1 mg/l. Steroids showed a lack of effect on liver zi...

Journal: :Water research 2004
J Perić M Trgo N Vukojević Medvidović

An uptake of zinc (Zn), copper (Cu), and lead (Pb) from aqueous solutions by ion exchange on natural zeolitic tuff has been studied. The Croatian zeolite clinoptilolite from the Donje Jesenje deposit has been used as a natural ion exchanger. The efficiency of removal is higher for Pb and Cu than for Zn ions. Measured concentrations of Si in the liquid phase identify the detachment of the alumin...

Journal: :iranian journal of public health 0
mh javanbakht m daneshpazhooh c chams-davatchi mr eshraghian m zarei m chamari

background: pemphigus vulgaris is a life threatening, blistering skin disease. it is an autoimmune abnormality. due to involvement of oral cavity and pharynx, patients are at risk of nutrients deficiency. the aim of this study was to evaluate the status of selenium, copper, and zinc in these patients. methods: in a case-control study, 43 newly diagnosed pemphigus vulgaris patients were compared...

Journal: :Bulletin of environmental contamination and toxicology 2012
Shenwen Cai Zhaohui Ni Yunfeng Li Ziwei Shen Zhiting Xiong Yan Zhang Yuntao Zhou

Concentrations of copper, zinc, mercury, and arsenic were measured in the muscle, gill and liver tissues of Coreius heterodon and Pelteobagrus vachelli collected from the rare and endemic fish nature reserve in the upper reaches of the Yangtze River. The concentrations of copper and zinc in the tissues of these two fish species were higher than those of mercury and arsenic. Highest metal concen...

Journal: :Journal of the American Dietetic Association 1980
J H Freeland-Graves M L Ebangit P W Bodzy

The zinc and copper content of seventy-four foods was determined by atomic absorption spectrophotometry. Each of these foods was reported to have been consumed by practicing vegetarians. Legumes, seeds, nuts, whole grains, hard cheeses, and some nutritional supplements were found to be excellent sources of both zinc and copper. Vegetables, fruits, and their products were generally poor sources ...

2017
Ali M. Ahmed Dalia M. Hamed Nagwa T. Elsharawy

AIM The main objectives of this study were for comparing the effect of batteries and deep litter rearing systems of domesticated Japanese quail, Coturnix coturnix japonica, on the concentration levels of cadmium, copper, lead, and zinc from the quail meat and offal in Ismailia, Egypt. MATERIALS AND METHODS A total of 40 quail meat and their offal samples were randomly collected from two main ...

Journal: :Neuro endocrinology letters 2005
Zulfikare Isik Gormus Niyazi Gormus Abdulkerim Kasim Baltaci Ihsan Halifeoglu Rasim Mogulkoc

OBJECTIVE The role of leptin in the acute stress response to extracorporeal circulation has been well documented, however, the relationship between leptin and zinc has not been investigated previously. We aimed to research the circulating leptin, zinc, and copper levels before, during, and after the extracorporeal circulation, and effect of preoperative zinc administration to these. METHODS T...

Journal: :Gastroenterologia y hepatologia 2012
Jesús Lozano Herrero Eduardo Muñoz Bertrán Isabel Ortega González Rosa Gómez Espín María Isabel López Espín

Wilson's Disease (WD) is an autosomal recessive disorder of copper metabolism resulting in a pathological accumulation of this metal, initially in the liver and later in other organs, mainly brain. Treatment with copper chelating agents and zinc salts results in a depletion of copper deposits and prevents or reverses the clinical manifestations. Copper deficiency may cause haematological and ne...

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