Mostrando 3,901 - 3,920 Resultados de 99,129 Para Buscar '" metal"', tiempo de consulta: 0.42s Limitar resultados
  1. 3901
    “…RESULTS: Exposure to inhalable dust and metals were low, but particle counting instruments identified specific work tasks with high particle emissions. …”
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  2. 3902
    por Ryan, P B, Scanlon, K A, MacIntosh, D L
    Publicado 2001
    “…Here we explore several methods to infer foods most strongly associated with concentrations of these metals observed in the duplicate diet in our data set. …”
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  3. 3903
    “…These results extend our understanding of the adverse health effects of the metals component of ambient PM(2.5).…”
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  4. 3904
  5. 3905
    “…Metallothioneins are small, cysteine-rich, metal-binding proteins that play important roles in maintaining intracellular metal homeostasis and in transition metal detoxification. …”
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  6. 3906
    “…The study involved a group of 25 male subjects from some metal factories in central Italy who used cutting fluids with an NDELA content of > or = 5 mg/l (high-exposure group) and a group of 37 males exposed to cutting fluids with an NDELA content < 5 mg/l (low-exposure group). …”
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  7. 3907
    “…To detect combined environmental mutagen injuries the micronucleus assay was used to study the effects of metal compounds. Cadmium ions increased the micronucleus frequency linearly after incubation with whole blood in vitro with 10(6)-10(-3) M concentrations for 30 min. …”
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  8. 3908
    “…Chronic metal toxicity is a concern in the Canadian Arctic because of the findings of high metal levels in wildlife animals and the fact that traditional food constitutes a major component of the diet of indigenous peoples. …”
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  9. 3909
    “…Intercellular and extracellular metal concentrations were measured using carbon fiber ultramicrosensors plated with mercury or with polymeric porphyrinic p-type semiconductors. …”
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  10. 3910
    por Predki, P F, Sarkar, B
    Publicado 1994
    “…Metal replacement studies were used to investigate the metal requirement of a bacterially expressed polypeptide encoding the zinc finger DNA binding domain of the estrogen receptor. …”
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  11. 3911
    por Bhanot, O S, Solomon, J J
    Publicado 1994
    “…Since DNA synthesis past the lesion is a necessary step to produce mutations, we investigated the role of the mutagenic metal ion Mn++ in facilitating DNA synthesis past alkylpyrimidines. …”
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  12. 3912
    por Squibb, K S, Fowler, B A
    Publicado 1981
    “…The effects of metals on subcellular organelle functions have been reviewed in relation to carcinogenesis. …”
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  13. 3913
  14. 3914
    por Koller, L D
    Publicado 1982
    “…This report will discuss the effect metals has on one segment of the immune system; that is, humoral immunity. …”
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  15. 3915
    por Calabrese, E J
    Publicado 1983
    “…Epidemiological investigations are shown to have contributed in a significant way to our understanding of the potential adverse health effects of drinking water with elevated levels of several metals. Particular emphasis is given to an assessment of the epidemiological investigations concerned with characterizing the health effects of exposure to elevated levels of arsenic and sodium in drinking water.…”
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  16. 3916
    por Kazantzis, G
    Publicado 1978
    “…Of these effects, cutaneous hypersensitivity is the most common, affecting both industrial and general population groups. Metal compounds used in therapeutics and metals used in prostheses have also been responsible for hypersensitive reactions.…”
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  17. 3917
    por Fox, M R
    Publicado 1978
    “…In recent years, exposure of man to increasing amounts of metals has occurred rather generally from industrial contamination and variably from intake of dietary mineral supplements. …”
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  18. 3918
  19. 3919
    por Cataldo, D A, Wildung, R E
    Publicado 1978
    “…To be detectable in plants, pollutant sources must significantly increase the plant available metal concentration in soil. The major factor governing metal availability to plants in soils is the solubility of the metal associated with the solid phase, since in order for root uptake to occur, a soluble species must exist adjacent to the root membrane for some finite period. …”
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  20. 3920
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