نتایج جستجو برای: pb

تعداد نتایج: 36420  

2016
J Vargova K Vargova N Dusilkova V Kulvait V Pospisil J Zavadil M Trneny P Klener T Stopka

MCL01 64/F PB 7 IVB Yes NA PR NA MCL02 84/F PB 8 IVB No 94 new Dg none MCL03 66/M PB 6.95 IVB No NA new Dg del11q MCL04 60/M PB 7.64 IVB No NA new Dg del17p MCL05 57/M PB 5.54 IVA No 47 new Dg none MCL06 57/M PB 5.65 IVA No NA new Dg none MCL07 76/M PB 8.5 IVB No 37 new Dg NA MCL08 68/M PB 8.5 IVB No 70 new Dg del17p, del11q MCL09 41/M PB 5.38 IVA No 17 new Dg none MCL10a 71/M PB 10 IVA Yes 50 ...

Journal: :Occupational and environmental medicine 1996
A Schütz I A Bergdahl A Ekholm S Skerfving

OBJECTIVES To test a simple procedure for preparing samples for measurement of lead in blood plasma (P-Pb) and whole blood (B-Pb) by inductively coupled plasma mass spectrometry (ICP-MS), to measure P-Pb and B-Pb in lead workers and controls, and to evaluate any differences in the relation between B-Pb and P-Pb between people. METHODS P-Pb and B-Pb were measured by ICP-MS in 43 male lead smel...

Journal: :Journal of environmental sciences 2007
Hong-qi Wang Si-jin Lu Hua Li Zhi-hua Yao

Phytoremediation is a potential cleanup technology for the removal of heavy metals from contaminated soils. Bidens maximowicziana is a new Pb hyperaccumulator, which not only has remarkable tolerance to Pb but also extraordinary accumulation capacity for Pb. The maximum Pb concentration was 1509.3 mg/kg in roots and 2164.7 mg/kg in overground tissues. The Pb distribution order in the B. maximow...

2008
S. Abreu

In the String Percolation Model [1] the particle density is proportional, once the colour reduction factor is taken into account, to the average number of participants ρ ∝ NA; the normalized particle density at mid-rapidity is related to the gluon distribution at small Bjorken-x, ρ ∝ exp ; and the dense-dilute separation scale decreases, from energy conservation, linearly with Y , ∆0 = −αY with...

Journal: :The Science of the total environment 2012
M Izquierdo A M Tye S R Chenery

Alluvial soils are reservoirs of metal contaminants such as Pb that originate from many different sources and are integrated temporally and spatially through erosional and depositional processes. In this study the source, lability and solubility of Pb were examined in a range of alluvial soils from the middle and lower River Trent and its tributary the River Dove using Pb isotope apportionment ...

Journal: :Ecotoxicology 2012
Lise C Fechner Marine Dufour Catherine Gourlay-Francé

This study aims at investigating the impacts of Pb on freshwater biofilms with a pollution-induced community tolerance (PICT) approach using a recently developed short-term toxicity test based on β-glucosidase activity to measure biofilms' tolerance to Pb. We first investigated more closely the influence of the total suspended solids (TSS) concentrations of biofilm suspensions used for short-te...

2015
Pei-Hsuan Yao Guey-Shin Shyu Ying-Fang Chang Yu-Chen Chou Chuan-Chou Shen Chi-Su Chou Tsun-Kuo Chang Howard W. Mielke

Leaded gasoline in Taiwan was gradually phased out from 1983 to 2000. However, it is unclear whether unleaded gasoline still contributes to atmospheric lead (Pb) exposure in urban areas. In this study, Pb isotopic compositions of unleaded gasolines, with octane numbers of 92, 95, 98, and diesel from two local suppliers in Taipei were determined by multi-collector inductively coupled plasma mass...

2016
Nikolaj Walraven Martine Bakker Bertil van Os Gerard Klaver Jack Jacobus Middelburg Gareth Davies

The Dutch cities Utrecht and Wijk bij Duurstede were founded by the Romans around 50 B.C. and the village Fijnaart and Graft-De Rijp around 1600 A.D. The soils of these villages are polluted with Pb (up to ~5000 mg/kg). Lead isotope ratios were used to trace the sources of Pb pollution in the urban soils. In ~75% of the urban soils the source of the Pb pollution was a mixture of glazed potsherd...

Journal: :Japanese journal of pharmacology 1997
M Moriyama S Yamashita K Furuno T Sato H Domoto Y Yamatogi H Kawasaki Y Gomita

The effect of lactation on the pharmacokinetics of phenobarbital (PB) after delivery was studied in female rats. Non-pregnant animals received PB 20 mg/kg/day twice for 6-7 days before mating, during pregnancy and after delivery. Chronic PB did not significantly influence changes in the body weight of rats after delivery. On the first post-delivery day, the plasma PB concentration in the PB-tre...

2017
David J. Wilson Tina van de Flierdt Jess F. Adkins

Past changes in seawater lead (Pb) isotopes record the temporal evolution of anthropogenic pollution, continental weathering inputs, and ocean current transport. To advance our ability to reconstruct this signature, we present methodological developments that allow us to make precise and accurate Pb isotope measurements on deep-sea coral aragonite, and apply our approach to generate the first P...

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