نتایج جستجو برای: old iron mining

تعداد نتایج: 583104  

Journal: : 2021

In the study, using panel data analysis, relationship between GDP and global iron, cotton, oil, copper prices were analyzed under impoverishing growth hypothesis. The countries in this study are developing such as China, Chile, Czechia, Greece, Hungary, India, South Korea, Malaysia, Pakistan, Peru, Philippines, Poland, Thailand, Turkey. covers period 2003-2018. analysis results show that increa...

Journal: :Clinical chemistry 1982
P J Garry J H Saiki

We report the case of a 54-year-old man who presented with symptoms of idiopathic hemochromatosis, an inherited disorder involving regulation of iron absorption. These symptoms usually do not appear until total body iron content reaches 15 g, about threefold normal. Therapy involves mobilization and removal of excess stored iron through weekly or twice-weekly phlebotomies of 500 mL, until the h...

Journal: :journal of mining and environment 0
r. dabiri department of geology, mashhad branch, islamic azad university, mashhad, iran m. bakhshi mazdeh department of geology, mashhad branch, islamic azad university, mashhad, iran h. mollai department of geology, mashhad branch, islamic azad university, mashhad, iran

the aim of this study was to determine the extent of metal pollutions and the identification of their major sources in the vicinity of the sangan iron mine occurring in ne iran. soil samples were collected from the vicinity of the mine site and analyzed for heavy metals. in addition, the chemical speciation of these metals was investigated by means of the sequential extraction procedure. the st...

Journal: :iranian journal of science and technology (sciences) 2007
sh. varkouhi

thirteen environmental elements were distinguished in the livers of various species of fish thathave been sampled from 15 sites in a restricted area of the khorramabad river basin in lorestan province(west of iran). sites sampled represented agricultural, mining, mixed, and urban/recreation land uses andbackground conditions. lithium and silver were not detected at any of the sites. the minimum...

Journal: :REM - International Engineering Journal 2022

Mining processes in the iron ore mine of Boukhadra, Tebessa (NE Algeria) generated thousands tons mining wastes every year, which represents a real threat to environment, leading hazardous effects for resident population region. The aim this study is selective sorting Boukhadra valorization. This will facilitate recycling mineral substances (limestone, iron, marls) on one hand and it makes poss...

2017
Tiffany G Kornberg Todd A Stueckle James A Antonini Yon Rojanasakul Vincent Castranova Yong Yang Liying Wang

Fine/micron-sized iron oxide particulates are incidentally released from a number of industrial processes, including iron ore mining, steel processing, welding, and pyrite production. Some research suggests that occupational exposure to these particulates is linked to an increased risk of adverse respiratory outcomes, whereas other studies suggest that iron oxide is biologically benign. Iron ox...

Journal: :Applied and environmental microbiology 2000
D E Cummings A W March B Bostick S Spring F Caccavo S Fendorf R F Rosenzweig

Mining-impacted sediments of Lake Coeur d'Alene, Idaho, contain more than 10% metals on a dry weight basis, approximately 80% of which is iron. Since iron (hydr)oxides adsorb toxic, ore-associated elements, such as arsenic, iron (hydr)oxide reduction may in part control the mobility and bioavailability of these elements. Geochemical and microbiological data were collected to examine the ecologi...

Journal: :Canadian journal of public health = Revue canadienne de sante publique 2000
G S Yeung S H Zlotkin

OBJECTIVE To determine whether utilization of iron from infant cereal and pureed meat was sufficient to prevent iron depletion and/or anaemia in infants 6 to 12 months old fed whole cow milk (WCM) as their primary milk source. DESIGN Six-month-old infants were randomized into a treatment group (n = 43) receiving iron-fortified infant cereal (10.2 mg iron), pureed meat (0.75-1.7 mg iron) and W...

2017
Kristen Finn Cheryl Callen Jatinder Bhatia Kathleen Reidy Lori J. Bechard Ryan Carvalho

Iron deficiency (ID) affects 13.5% of 1-2 years old children in the US and may have a negative impact on neurodevelopment and behavior. Iron-fortified infant cereal is the primary non-heme iron source among infants aged 6-11.9 months. The objective of this study was to compare iron intakes of infant cereal users with non-users. Data from the Feeding Infants and Toddlers Study 2008 were used for...

Hassan Tootoonchi, Mahdi Shahriari,

Background: The "Iron Supplementation Project" for anemic toddlers in Iran has not been subject to scientific studies yet. Since daily consumption of iron drops by children could bring about physical and mental problems, the aim of this study was to determine whether weekly doses of iron drops would also improve the iron status of children significantly. Materials and Methods: We determined the...

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