Mostrando 5,661 - 5,680 Resultados de 77,560 Para Buscar '"AIR"', tiempo de consulta: 0.44s Limitar resultados
  1. 5661
    “…Medicated children, in contrast, increased their beta-agonist use in direct association with an increase in 5-day mean of sulfates, but medication use did not prevent decreases in PEF and increases in the prevalence of cough attributable to particulate air pollution. Medication use was not a confounder but attenuated the associations between particulate air pollution and health outcomes.…”
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  2. 5662
  3. 5663
    “…It was anticipated that the road closures associated with the DNC would both influence the overall air pollution level and the distribution of concentrations across the city, through shifts in traffic patterns. …”
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  4. 5664
    por Dockery, D W
    Publicado 1993
    “…Exposures to air pollutants also are multidimensional, generally consisting of a mixture of gases and particles. …”
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  5. 5665
    por Lipfert, F W
    Publicado 1993
    “…Studies of the associations between air pollution and hospital admissions and emergency room use are reviewed, including studies of air pollution episodes, time-series analyses, and cross-sectional analyses. …”
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  6. 5666
    “…This study compared the prevalence of asthma with climate and air pollutant data to determine the relationship between asthma prevalence and these factors. …”
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  7. 5667
  8. 5668
  9. 5669
    por Pope, C A
    Publicado 2000
    “…This article briefly summarizes the epidemiology of the health effects of fine particulate air pollution, provides an early, somewhat speculative, discussion of the contribution of epidemiology to evaluating biologic mechanisms, and evaluates who's at risk or is susceptible to adverse health effects. …”
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  10. 5670
    por Pleil, J D, Smith, L B, Zelnick, S D
    Publicado 2000
    “…JP-8 jet fuel (similar to commercial/international jet A-1 fuel) is the standard military fuel for all types of vehicles, including the U.S. Air Force aircraft inventory. As such, JP-8 presents the most common chemical exposure in the Air Force, particularly for flight and ground crew personnel during preflight operations and for maintenance personnel performing routine tasks. …”
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  11. 5671
  12. 5672
    “…BACKGROUND: Tobacco smoking, passive smoking, and indoor air pollution from biomass fuels have been implicated as risk factors for tuberculosis (TB) infection, disease, and death. …”
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  13. 5673
  14. 5674
  15. 5675
  16. 5676
    “…OBJECTIVE: We investigated oxidative damage to DNA and related repair capacity in peripheral blood mononuclear cells (PBMCs) during controlled exposure to urban air particles with assignment of number concentration (NC) to four size modes with average diameters of 12, 23, 57, and 212 nm. …”
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  17. 5677
  18. 5678
  19. 5679
    “…BACKGROUND AND OBJECTIVES: We have previously shown that reduced defenses against oxidative stress due to glutathione S-transferase M1 (GSTM1) deletion modify the effects of PM(2.5) (fine-particulate air pollution of < 2.5 μm in aerodynamic diameter) on heart rate variability (HRV) in a cross-sectional analysis of the Normative Aging Study, an elderly cohort. …”
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  20. 5680
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