نتایج جستجو برای: copper workers

تعداد نتایج: 195896  

Journal: :British journal of industrial medicine 1986
S Araki H Aono K Murata

To investigate the effects of calcium disodium ethylenediamine tetra-acetate (CaEDTA) on the urinary excretion, erythrocyte, and plasma concentrations and exposure indicators of seven heavy metals, CaEDTA was administered by intravenous infusion to 20 workers exposed to lead, zinc, and copper. The workers' blood lead concentrations ranged from 22 to 59 micrograms/dl (mean 38 micrograms/dl (1.8 ...

Journal: :Chemcatchem 2023

The Front Cover depicts that the activities of two closely related phenanthroline-based copper(I) photosensitizers are as different night and day. In their Research Article, M. Schwalbe, S. Tschierlei co-workers thoroughly investigated structurally complexes with respect to structure-property relationships. Both exhibit comparable excited state lifetimes, but only one is brightly luminescent sh...

2008
Jay H. Lubin Lee E. Moore Joseph F. Fraumeni Kenneth P. Cantor

BACKGROUND Inhalation of high levels of airborne inorganic arsenic is a recognized cause of respiratory cancer. Although multiple epidemiologic studies have demonstrated this association, there have been few analyses of the mathematical relationship between cumulative arsenic exposure and risk of respiratory cancer, and no assessment as to whether and how arsenic concentration may modify this a...

2016
Amir Hussein Khoshakhlagh Mohammad Ghasemi Gholamhossein Pourtaghi

Background: Fatigue may lead to several consequences and principally produces occupational physical trauma among the workforce. Objectives: This study was designed to explore the relationship between work-related physical trauma and fatigue in the copper extraction industry. Materials and Methods: This cross-sectional study was conducted among 453 male workers employed in the copper extraction ...

Journal: :Advanced Science 2023

Oxygen Evolution Reaction In article number 2207695, Byung-Hyun Kim, HyukSu Han, and co-workers develop an iridium doped calcium copper titanate exhibiting ultrahigh mass activity for acidic oxygen evolution reaction (OER). This work reposts the design of electrocatalysts OER using colossal dielectric perovskite oxide.

Journal: :Occupational and environmental medicine 2000
T S Shih A T Hsieh G D Liao Y H Chen S H Liou

OBJECTIVES To investigate the effects of ethylene glycol monomethyl ether (EGME) on haematology and reproduction in exposed workers. METHODS 53 Impregnation workers from two factories that make copper clad laminate with EGME as a solvent were recruited as the exposed group. Another group of 121 lamination workers with indirect exposure to EGME was recruited as the control group. Environmental...

2016
Egbe Edmund Richard Nsonwu-Anyanwu Augusta Chinyere Offor Sunday Jeremaiah Usoro Chinyere Adanna Opara Etukudo Maise Henrieta Egbe Deborah Ifunanya

Background. Cement dust inhalation is associated with deleterious health effects. The impact of cement dust exposure on the peak expiratory flow rate (PEFR), liver function, and some serum elements in workers and residents near cement factory were assessed. Methods. Two hundred and ten subjects (50 workers, 60 residents, and 100 controls) aged 18-60 years were studied. PEFR, liver function {asp...

Journal: :Environmental Health Perspectives 1979
Tord Kjellström Lars Friberg Barbro Rahnster

Preliminary data are reported from a study of 269 cadmium-nickel battery factory workers and 94 cadmium-copper alloy factory workers. The target group comprises all workers with more than 5 years exposure to cadmium at any time since the factories started production. An internal reference group of 328 alloy factory workers without cadmium exposure was also studied. The expected number of deaths...

2013
Orlando Santoro Alba Collado Alexandra M. Z. Slawin Steven P. Nolan Catherine S. J. Cazin

In transitionmetal-catalysed reactions the accessibility of the catalyst is one of the most important factors in dictating the usefulness of any catalyticmethod. The development of catalytic systems based on inexpensive metals such as iron and copper have gained increased attention during the last few years. In this context, N-heterocyclic carbene (NHC) copper species of the type [Cu(X)(NHC)] (...

Journal: :Macromolecular Rapid Communications 2021

Back Cover: In article number 2100274, Shigehito Osawa, Hidenori Otsuka, and co-workers design a polymer chain containing copper complexes in the side to build locally concentrated state of an aqueous solution. this image, facilitated catalytic activity against hydrogen peroxide decomposition generates hydroxyl radicals, eventually attacking pathogens.

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