نتایج جستجو برای: copper workers

تعداد نتایج: 195896  

2003
H. MARKOWITZ

In 1924, Hart, Elvehjem and coworkers demonstrated that copper is essential for erythropoiesis in most, if not all, mammalian species (1). Since that time many studies have been performed in attempts to elucidate the manner in which copper functions in erythropoiesis, but as yet this mechanism is not understood. Recent studies in this laboratory (2) have indicated that the amount of copper in t...

Journal: :Occupational and environmental medicine 1995
T Sorahan A Lister M S Gilthorpe J M Harrington

OBJECTIVES To identify and quantify any relations between occupational exposure to cadmium oxide fume and mortalities from lung cancer and from chronic non-malignant diseases of the respiratory system. METHODS The mortality experience of 347 copper cadmium alloy workers, 624 workers employed in the vicinity of copper cadmium alloy work (vicinity workers), and 521 iron and brass foundry worker...

Journal: :journal of occupational health and epidemiology 0
a firoozi chahak mh beheshti aa alinaghi langari f laal

background: the workers of mines, during a working day, are exposed to stress and psychological pressure that certainly affect the efficiency of their work. this study aimed to determine the level of stress, anxiety, and depression in workers of one copper mine in kerman province, iran. materials and methods: in this cross-sectional study, 250 workers of the operation unit of one copper mine in...

Journal: :Environmental Health Perspectives 1984
R Lilis J A Valciukas J P Weber J Malkin I J Selikoff

A medical cross-sectional examination of a copper smelter work force was undertaken after environmental contamination with lead, cadmium and arsenic had been documented. A total of 920 subjects was examined, including active smelter employees, retired workers and copper mine employees who had never worked in the smelter. Slight to moderate absorption of lead and cadmium was definitely present i...

Journal: :Industrial health 1994
M Y Shamy R M el Gazzar M A el Sayed A M Attia

The present study was aimed for the effects of exposure to multiple organic solvent vapors in comparison with single exposure to phenol. It included 20 workers exposed to phenol alone and 32 workers of combined exposure to phenol, benzene, toluene and methyl ethyl ketone. A control group of 30 subjects was also included. The levels of transaminases, total proteins, prothrombin time, bleeding ti...

2009
A. Antonella Tosti Donatella Mattioli Antonella Tosti

Antonella Tosti, Donatella Mattioli, Cosimo Misciali, Department of Dermatology, University of Bologna, Via Massarenti 1, 40138, Bologna (Italy) To the editor Green discoloration of hair is well known as a consequence of copper exposure [1-5]. It can occur in copper workers [1], and it has been described following exposure to swimming pool water containing copper [2]. The following report descr...

Journal: :Cadernos de saude publica 1998
S M Bréga I Vassilieff A Almeida A Mercadante D Bissacot P R Cury D V Freire-Maia

Pesticides can cause gene mutations and chromosomal aberrations in exposed individuals. We have investigated 24 workers exposed to pesticides. Clinical examinations and cytogenetic and toxicological tests were performed. Ten non-exposed individuals were used as controls. Toxicological dosages of copper, zinc and manganese (metals found in some pesticides), hepatic enzyme dosage (GOT, GPT, AR) a...

1959
N. S. Alcock

this review covers some of the developments during this period. Just over twenty years ago J. R. M. Innes came to the National Hospital for Nervous Diseases and showed us some intriguing pictures of lambs with sway-back and suggested that here was a demyelinating disease which could be prevented by giving the ewes copper. Then, during the war, four workers studying sway-back developed themselve...

Hassan Ahmadvand , Issa Nourmohammadi, Mohammad Taghikhani,

There have been much speculation and debate concerning the effect of electromagnetic fields (EMF) on body systems. Various reports have implicated excessive exposure to EMF to certain forms of leukemia. It has also been reported that EMF may cause alteration in the levels of certain macro- and micro-nutrients such as copper, zinc, selenium, calcium and iron. We have undertaken this study to det...

Journal: :Journal of trace elements in medicine and biology : organ of the Society for Minerals and Trace Elements 2005
Lars Gerhardsson Anna Akantis Nils-Göran Lundström Gunnar F Nordberg Andrejs Schütz Staffan Skerfving

The aim of the study was to compare bone lead concentrations in cortical and trabecular bones in long-term exposed primary copper and lead smelter workers, and to relate the measured concentrations to the previous lead exposure of the workers. Lead concentrations in seven bones (trabecular: sternum, vertebrae, iliac crest, rib; cortical: femur, left forefinger, and temporal bone) were determine...

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