Mostrando 5,641 - 5,660 Resultados de 77,560 Para Buscar '"AIR"', tiempo de consulta: 0.42s Limitar resultados
  1. 5641
    por Lee, J T, Kim, H, Schwartz, J
    Publicado 2000
    “…However, unidirectional control sampling would fail to control confounding by those variations of air pollution. Simulation results also show that even the bidirectional case-crossover design can be biased in a situation where the exposure variable shows incomplete cyclic waves, and therefore it cannot completely control for temporal confounding.…”
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  2. 5642
  3. 5643
  4. 5644
    “…Although most available evidence relating air pollution and mortality was obtained for adults, pollution has been also associated with increased mortality in children, but in a significantly smaller number of studies. …”
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  5. 5645
    “…We evaluated the relation between term low birth weight (LBW) and ambient air levels of carbon monoxide (CO), particulate matter up to 10 microm in diameter (PM(10)), and sulfur dioxide (SO(2)). …”
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  6. 5646
    “…To this end we examined the responses of three different panels to particulate matter (PM) air pollution in Bangkok, Thailand, a tropical city characterized by a very warm and humid climate. …”
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  7. 5647
    “…Pulmonary gas uptake is a function of the blood solubility of a vapor, indicated by the blood/air partition coefficient. We hypothesized that blood lipid compositions are associated with the blood/air partition coefficients of lipophilic toxic vapors such as 1,3-butadiene. …”
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  8. 5648
    “…Environmental Protection Agency's principal criteria air pollutants, there is little epidemiologic information on specific hydrocarbons from toxic emission sources. …”
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  9. 5649
    “…These findings suggest that eNO can be used as an assessment tool in epidemiologic studies of health effects of air pollution.…”
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  10. 5650
    “…In conclusion, relatively low concentrations of gaseous air pollutants are associated with adverse effects on birth outcomes in populations experiencing diverse air pollution profiles.…”
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  11. 5651
  12. 5652
    “…Small increases in preterm delivery risk in relation to spatial gradients of air pollution have been reported, but previous studies may have controlled inadequately for individual factors. …”
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  13. 5653
    “…Epidemiologic studies have demonstrated a consistent link between sudden cardiac deaths and particulate air pollution. We used implanted cardioverter defibrillator (ICD) records of ventricular tachyarrhythmias to assess the role of air pollution as a trigger of these potentially life-threatening events. …”
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  14. 5654
  15. 5655
  16. 5656
    “…We used multivariate linear regression analysis to examine the temporal and spatial associations between agricultural use and measured air concentrations of chlorpyrifos, chlorpyrifos oxon, diazinon, and malathion. …”
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  17. 5657
  18. 5658
  19. 5659
    por Gamble, J F, Lewis, R J
    Publicado 1996
    “…Numerous studies have reported weak but statistically significant acute health effects of particulate air pollution. The associations are observed at levels below the current U.S. standard of 150 micrograms/m3 (24 hr). …”
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  20. 5660
    por Wang, X, Ding, H, Ryan, L, Xu, X
    Publicado 1997
    “…The relationship between maternal exposure to air pollution during periods of pregnancy (entire and specific periods) and birth weight was investigated in a well-defined cohort. …”
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