نتایج جستجو برای: contamination factor

تعداد نتایج: 893730  

احمدی جلالی مقدم, معصومه, اسفرم مشگین شهر, سجاد , سلطانی تهرانی, بهرام, نوجوان, مجید, هنرمند, حمید رضا ,

Background and purpose: Nosocomial outbreaks of legionnaires’ diseases are usually related to contamination of water sources. This survey investigated the frequency of mip gene in cold and warm water taps and water containers of infant incubators containing legionella pneumophila in hospitals of Guilan province, Iran. Materials and methods: This cross-sectional study used 140 samples. They wer...

Journal: Pollution 2019

The Kolleru Lake is a famous Ramsar wetland of international significance. In this study heavy metal contents in water and sediment samples are reported. It is found that certain potentially toxic metal ions like chromium (4.5-80 µg/L), copper (1-20 µg/L), manganese (1-313 µg/L) and zinc (1.2-57 µg/L) are present in variable quantities in the lake water. When normalized with respect to concentr...

The Kolleru Lake is a famous Ramsar wetland of international significance. In this study heavy metal contents in water and sediment samples are reported. It is found that certain potentially toxic metal ions like chromium (4.5-80 µg/L), copper (1-20 µg/L), manganese (1-313 µg/L) and zinc (1.2-57 µg/L) are present in variable quantities in the lake water. When normalized with respect to concentr...

2009
Dmitri V. Kravtsov Anton Matafonov Erik I. Tucker Mao-fu Sun Peter N. Walsh Andras Gruber David Gailani

During surface-initiated blood coagulation in vitro, activated factor XII (fXIIa) converts factor XI (fXI) to fXIa. Whereas fXI deficiency is associated with a hemorrhagic disorder, factor XII deficiency is not, suggesting that fXI can be activated by other mechanisms in vivo. Thrombin activates fXI, and several studies suggest that fXI promotes coagulation independent of fXII. However, a recen...

Journal: :Archives of environmental contamination and toxicology 2013
M Mil-Homens A M Costa S Fonseca M A Trancoso C Lopes R Serrano R Sousa

Surface sediments were collected in August 2009 from 49 sites along the Minho estuary (between Tui and Caminha) and analyzed for grain size, organic carbon (Corg) and total nitrogen (Ntot) contents, and major (silicon [Si], aluminum [Al], iron [Fe], calcium [Ca], magnesium [Mg], sodium [Na], potassium [K], titanium [Ti], and mangesese [Mn]) and trace element (arsenic [As], chromium [Cr], copper...

Journal: :Arhiv za higijenu rada i toksikologiju 2013
Marko Šoštarić Branko Petrinec Dinko Babić

This paper addresses the noticeable increase of 137Cs activity concentrations in soil and fallout in the area surrounding Zagreb (Croatia) that occurred at the time of the 2011 Fukushima accident. This topic is important for public health as 137Cs is highly toxic due to its long half-life of radioactive decay and chemical similarity to potassium. 137Cs concentrations in fallout were much greate...

2007
R. BACHNAK

Data collection in shallow water areas presents several challenges to the scientist. In addition to being redundant and time consuming, this task when performed manually has a high probability of disturbing the test area. Obstacles that are encountered in such environments include difficulty in covering large territories and the presence of inaccessible areas due to a variety of reasons, such a...

2004
N. L. Homeier

We explore the effect of contamination of intermediate redshift Type Ia supernova samples by Type Ibc supernovae. Simulating observed samples of Ia and mixed Ibc/Ia populations at a range of redshifts for an underlying cosmological concordance model (Ωm = 0.27, ΩΛ = 0.73), we find that even small contamination levels, 2− 5% may bias the derived ΩΛ and Ωm towards larger values. We thus emphasize...

2016
Edward W. Brooke

law. This legislation clarifies the Superfund Act to ensure that the product of scrap recycling is not subject to Superfund liability if certain standards are met. S. 607 does not exempt from Superfund liability recyclers who operate contaminated facilities. Nor does it exempt from Superfund contamination caused in whole or in part by waste generated during the course of processing recycled mat...

2015
Sayyada Ghufrana Nadeem

ated. Candida albicans was grown both in the presence and absence of Cadmium were plotted to study the growth pattern of the yeast isolate. It concentration of cadmium. The organism was found to be metals from the environmental The inorganic minerals like sodium, etc., when present above the permissible limit are harmful. -scale contamination of gravity that is 5 or more times that of water are...

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