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Showing 45061 - 45080 of 82972 results
  • Risk Assessment for 23 78PDioxin TCDD Based on an Epidemiologic Study
    Risk Assessment for 2,3, 7,8-P-Dioxin (TCDD) Based on an Epidemiologic Study
    Deddens J ;
    Piacitelli, Laurie A.
    2001/09/01 | National Institute for Occupational Safety and Health (NIOSH)
    The International Agency for Research on Cancer (Lyon, France) recently concluded that 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) is a human carcinogen. There have been few human studies and risk assessments with quantitative exposure data. The authors previously conducted exposure-response analyses based on estimated external TCDD exposure for 3,5 ...
    Public Domain
  • From Strategy to Reality 25 Years of Planning and Progress in Occupational Injury Research
    From Strategy to Reality: 25 Years of Planning and Progress in Occupational Injury Research
    Linn H ;
    Stout N
    2001/09/01 | Mining Publications
    Injury as a major public health problem, although noted as early as the 1930s, was not widely accepted by the public health community until the 1980s. Over recent decades, there have been a number of strategic plans developed to prevent and control occupational injuries. These plans have been remarkably consistent in that many of the same recommend ...
    Public Domain
  • Nonspherical Particle Measurements Shape Factors Fractals and Fibers
    Nonspherical Particle Measurements: Shape Factors, Fractals, and Fibers
    Baron, Paul A. ;
    Brockmann JE
    2001/09/01 | National Institute for Occupational Safety and Health (NIOSH)
    Many aerosol measurement techniques are based on the behavior of ideal aerosol particles, that is, spherical particles with a density close to 1000 kg/m3 (1g/cm3). In dealing with most real-world particles, allowances must be made for nonspherical particle behavior and other characteristics. In many situations, nonideal particle behavior can be con ...
    Public Domain
  • Ready Mixed Concrete Truck Drivers WorkRelated Hazards and Recommendations for Controls
    Ready Mixed Concrete Truck Drivers: Work-Related Hazards and Recommendations for Controls
    Clark N ;
    Dropkin J
    2001/09/01 | National Institute for Occupational Safety and Health (NIOSH)
    The Center to Protect Workers' Rights contracted with the Center for Occupational and Environmental Medicine, Mount Sinai School of Medicine, in New York City, to conduct a hazard assessment of truck drivers in the ready mixed concrete industry. The project was to include the following: 1. Review, analysis, and interpretation of OSHA Log 200 and in ...
  • Gonadotropin Regulation of Glutathione Synthesis in the Rat Ovary
    Gonadotropin Regulation of Glutathione Synthesis in the Rat Ovary
    Faustman EM ;
    Kavanagh TJ
    2001/09/01 | National Institute for Occupational Safety and Health (NIOSH)
    Glutathione (GSH), an antioxidant and conjugator of electrophilic toxicants, prevents toxicant-mediated destruction of ovarian follicles and oocytes. Ovarian GSH has previously been shown to change with estrous cycle stage in rats, suggesting that the gonadotropin hormones may regulate ovarian GSH synthesis. The present studies tested the hypothese ...
  • Differential Effects of Octylphenol 17 BEstradiol Endosulfan or Bisphenol A on the Steroidogenic Competence of Cultured Adult Rat Leydig Cells
    Differential Effects of Octylphenol, 17 B-Estradiol, Endosulfan, or Bisphenol A on the Steroidogenic Competence of Cultured Adult Rat Leydig Cells
    de Leon JH ;
    Derk RC
    2001/09/01 | National Institute for Occupational Safety and Health (NIOSH)
    In the current studies, we evaluated the effects of 4-tert-octylphenol (OP), endosulfan, bisphenol A (BPA), and 17beta-estradiol on basal or hCG-stimulated testosterone formation by cultured Leydig cells from young adult male rats. Exposure of Leydig cells to increasing concentrations of OP (1 to 2000 nM), 17beta-estradiol (1 to 1000 nM), endosulfa ...
    Public Domain
  • Height Surface Firmness and Visual Reference Effects on Balance Control
    Height, Surface Firmness, and Visual Reference Effects on Balance Control
    Hsiao H ;
    Simeonov P
    2001/09/01 | National Institute for Occupational Safety and Health (NIOSH)
    To investigate the effects of height, surface firmness, and visual reference on standing balance in construction workers. Controlled laboratory study with balanced repeated measures. Twenty four construction workers. Test subjects performed standing tasks at ground level as well as at 3 m and 9 m high balconies on firm or deformable surfaces with c ...
  • Electrical Accidents in the Mining Industry 19901999
    Electrical Accidents in the Mining Industry, 1990–1999
    Cawley, James C.
    2001/09/01 | Mining Publications
    This National Institute for Occupational Safety and Health study was conducted to focus future research on the most significant electrical problems in the mining industry. Data from 1,926 mine electrical accidents (including 75 fatalities) that occurred between 1990 and 1999 were studied. Coal and metal-nonmetal operator- and contractor-reported da ...
    Public Domain
  • Integrating Occupational Health Services and Occupational Prevention Services
    Integrating Occupational Health Services and Occupational Prevention Services
    Deitchman, Scott D. ;
    Dervin K
    2001/09/01 | National Institute for Occupational Safety and Health (NIOSH)
    Despite the human and monetary costs of occupational injury and illness, occupational health care has focused more on treatment than prevention, and prevention is not part of many clinical occupational health practices. This represents a failure of occupational health care to meet the health care needs of the working patients. MEDLINE searches were ...
    Public Domain
  • Prevention of Construction Falls by Organizational Intervention
    Prevention of Construction Falls by Organizational Intervention
    Akladios M ;
    Becker P
    2001/09/01 | National Institute for Occupational Safety and Health (NIOSH)
    Objectives-Determine if a university based (third party) intervention can improve construction contractor organizational performance to increase use of fall prevention practices and technologies. Setting-Falls are the leading cause of worker injury and death in the construction industry. Equipment and practices that can prevent falls are often not ...
  • Changes in Impression Complexity over Time and Across Situations
    Changes in Impression Complexity over Time and Across Situations
    Welbourne JL
    2001/09/01 | National Institute for Occupational Safety and Health (NIOSH)
    This set of studies tested the idea that higher levels of acquaintance with an individual would be associated with greater impression complexity. Two aspects of acquaintance were examined: length of relationship and contextual diversity of interactions. In Study 1, participants provided written descriptions of acquaintances known for different leng ...
    Public Domain
  • Pastor struck by falling roof ice dam subsequently died from complications
    Pastor struck by falling roof ice dam, subsequently died from complications
    Michigan Fatality Assessment and Control Evaluation (Project) (MIFACE)  ...
    2001/09/01 | Fatality Assessment and Control Evaluation Reports (FACE)
    On January 28, 2001, a 48-year-old male died of injuries he sustained approximately two weeks earlier when he was clearing icicles from the church roof at the church where he was pastor. The victim stood facing the church building and used a snow shovel to knock off icicles from the west side of the building roof. He began the roof clearing operati ...
  • Bridging Science and Application in Aerosol Measurement Accessing Available Tools
    Bridging Science and Application in Aerosol Measurement: Accessing Available Tools
    Baron, Paul A. ;
    Willeke K
    2001/09/01 | National Institute for Occupational Safety and Health (NIOSH)
    An aerosol is an assembly of liquid or solid particles suspended in a gaseous medium, for example, air, long enough to be observed and measured. The need to measure aerosols has increased dramatically in recent years. This need has arisen in various disciplines. Although much information is available in the published literature, the scientists and ...
    Public Domain
  • An Approach to Performing Aerosol Measurements 2001
    An Approach to Performing Aerosol Measurements [2001]
    Baron, Paul A. ;
    Heitbrink, William A.
    2001/09/01 | National Institute for Occupational Safety and Health (NIOSH)
    Today's scientists and engineers making aerosol measurements have available a diversity of aerosol monitors ranging from sample collection on a filter for later analysis to complex direct-reading instruments that detect the airborne particles in real time and display size distribution and chemical data. Instruments used for aerosol measurement freq ...
    Public Domain
  • The Safety and Health of Emergency Workers
    The Safety and Health of Emergency Workers
    Kowalski, Kathleen M. ;
    Vaught C
    2001/09/01 | Mining Publications
    Emergency personnel, like all workers, carry out their duties within an environment composed of a set of discrete elements. First, there is the emergency itself. Whether a forest fire in France, a tornado in the American Midwest, or a mining disaster in Russia, the emergency imposes certain exigencies upon the responders. Second, a social structure ...
    Public Domain
  • Parkinsonism and Occupational Exposure to Pesticides
    Parkinsonism and Occupational Exposure to Pesticides
    Anger WK ;
    Camicioli R
    2001/09/01 | National Institute for Occupational Safety and Health (NIOSH)
    Objective: To examine the risk of parkinsonism related to lifetime occupational exposure to pesticides among a cohort of men, mostly orchardists, in Washington State. Methods: All 310 subjects in this study had previously participated in a cohort study of men occupationally exposed to pesticides. Subjects were given a structured neurological examin ...
  • Molecular Strategies for Neurotoxicity Screening Moving Beyond the One Compound One Mechanism Approach
    Molecular Strategies for Neurotoxicity Screening: Moving Beyond the One Compound, One Mechanism Approach
    O'Callaghan JP
    2001/09/01 | National Institute for Occupational Safety and Health (NIOSH)
    The molecular and cellular targets of neurotoxic insult are diverse and unpredictable, owing to the extreme molecular and cellular heterogeneity of the adult and developing nervous system. This neurobiological complexity constitutes the central dilemma for contemporary neurotoxicology, because any attempt to screen for neurotoxic effects associated ...
    Public Domain
  • Ambient Air Sampling
    Ambient Air Sampling
    Chow JC ;
    Watson JG
    2001/09/01 | National Institute for Occupational Safety and Health (NIOSH)
    Goals for ambient sampling for suspended particulate matter include (1) determining compliance with air quality standards; (2) evaluating the extent and causes of high mass concentrations, deposition, and visibility impairment; (3) enhancing understanding of the chemical and physical properties of atmospheric pollution; (4) apportioning the chemica ...
    Public Domain
  • Texas entry year agriculture teachers perceptions practices and preparation regarding safety and health in agricultural education
    Texas entry - year agriculture teachers' perceptions, practices, and preparation regarding safety and health in agricultural education
    Hubert DJ ;
    Lindner JR
    2001/09/01 | National Institute for Occupational Safety and Health (NIOSH)
    The purpose of this study was to gather benchmark data for the assessment of the knowledge, attitudes, and perceptions regarding agricultural safety issues and curricula held by Texas agricultural teachers with less than two full years of teaching experience (entry-year teachers). Seventy-four of 118 well-distributed teachers responded to this surv ...
  • Toxicity of Fibers and Particles Report of the Workshop Held in Munich Germany October 2627 2000
    Toxicity of Fibers and Particles Report of the Workshop Held in Munich, Germany, October 26–27, 2000
    Borm P ;
    Donaldson K
    2001/09/01 | National Institute for Occupational Safety and Health (NIOSH)
    Fibers and particles can have primary genotoxic effects and also induce inflammation, fibrosis, and cancer in experimental animals and humans. The intensities of these adverse effects are dose dependent where inflammation is known to induce cell proliferation and secondary genotoxicity. Secondary genotoxicity may arise as a result of inflammation a ...
    Public Domain
45061 - 45080 / 82972