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Showing 47801 - 47820 of 82805 results
  • A New Passive Sampler for Aldehydes
    A New Passive Sampler for Aldehydes
    Que Hee SS ;
    Tsai SW
    1999/07/01 | National Institute for Occupational Safety and Health (NIOSH)
    A new solid sorbent passive air sampler used a coated Tenax TA pellet that chemisorbed aldehydes by reaction with 10% (w/w) O-(2,3,4,5,6-pentafluorobenzyl) hydroxylamine hydrochloride. The aldehyde permeated a silicone membrane to gain access to the sampling element at the end of a cylinder of diffusion path length 1.1 cm and diameter 1.3 cm. Vapor ...
  • Ventilating the Box Cut of a TwoPass 40 ft Extended Cut
    Ventilating the Box Cut of a Two-Pass 40 ft Extended Cut
    Taylor, Charles D. ;
    Thimons, Edward D.
    1999/07/01 | Mining Publications
    On a continuous miner coal face methane concentrations are affected by the quantity of fresh intake air reaching the face. When mining the box cut on a 12.2m (40ft) two-pass extended cut face, the continuous miner is always at the point of deepest penetration, and the operation of the machine -mounted dust scrubber and water spray system improve th ...
    Public Domain
  • Cancer Mortality in Health and Science Technicians
    Cancer Mortality in Health and Science Technicians
    Burnett C ;
    Robinson CF
    1999/07/01 | National Institute for Occupational Safety and Health (NIOSH)
    Background: Nearly one million U.S. women are employed as health or science technicians with various chemical and biological exposures, but few studies have looked at their health outcomes. Methods: Using 1984-1995 mortality data with coded occupation information, we calculated race- and age-adjusted proportionate cancer mortality ratios (PCMRs) an ...
    Public Domain
  • Health Hazard Evaluation Report HETA 9801242743 Yankton Sioux TribeMarty Indian School Marty South Dakota
    Health Hazard Evaluation Report: HETA 98–0124–2743: Yankton Sioux Tribe–Marty Indian School, Marty, South Dakota
    Boudreau, Yvonne A. ;
    Hall, Ronald M.
    1999/07/01 | Health Hazard Evaluation Reports (HHE)
    On February 25, 1998, the National Institute for Occupational Safety and Health (NIOSH) received a request for a Health Hazard Evaluation (HHE) from management at the Yankton Sioux Tribe-Marty Indian School in Marty, South Dakota. The request concerned worker exposures to various contaminates (i.e., metals) contained in fly ash from burning used mo ...
    Public Domain
  • Surveillance of Construction Worker Injuries The Utility of TradeSpecific Analysis
    Surveillance of Construction Worker Injuries: The Utility of Trade-Specific Analysis
    Anderson J ;
    Hunting KL
    1999/07/01 | National Institute for Occupational Safety and Health (NIOSH)
    Construction is a dangerous industry, with high rates of both fatal and nonfatal injuries. To learn more about the causes of nonfatal construction worker injuries, and to identify injury cases for further work site-based investigations or prevention programs, we established an emergency department-based surveillance program in November 1990. This a ...
  • Nitric Oxide Inhibits HIV TatInduced NFkB Activation
    Nitric Oxide Inhibits HIV Tat-Induced NF-kB Activation
    Castranova, Vincent ;
    Chen F
    1999/07/01 | National Institute for Occupational Safety and Health (NIOSH)
    To evaluate the roles of nitric oxide (NO) on human immunodeficiency virus (HIV) Tat-induced transactivation of HIV long terminal repeat (HIV-LTR), we examined the effect of NO in the regulation of nuclear factor (NF)-kappaB, a key transcription factor involved in HIV gene expression and viral replication. In the present study, we demonstrate that ...
    Public Domain
  • Garbage collector run over by trash truck at a county landfill while signalling the driver in backing maneuver
    Garbage collector run over by trash truck at a county landfill while signalling the driver in backing maneuver
    Schneiderman, Aaron I. ;
    Ticer, Letha
    1999/07/01 | Fatality Assessment and Control Evaluation Reports (FACE)
    On March 17, 1994, a 59-year-old male garbage collector (the victim) was crushed to death by a collection vehicle at a local landfill. The victim and two co-workers (a driver and another collector) had finished a collection run and arrived at the landfill to deposit the refuse. According to multiple sources familiar with the case the victim exited ...
  • Evaluation of Exposures to Fluorocarbon 113 in a Horizontal and a Vertical Laminar Airflow Clean Room
    Evaluation of Exposures to Fluorocarbon 113 in a Horizontal and a Vertical Laminar Airflow Clean Room
    Bloom, Thomas F. ;
    Egeland, Grace M.
    1999/07/01 | National Institute for Occupational Safety and Health (NIOSH)
    Exposures to 1,1,2-trichloro-1,2,2-trifluoroethane or fluorocarbon (FC) 113 were evaluated in a horizontal laminar airflow (HLAF) clean room and a vertical laminar airflow (VLAF) clean room. A full period consecutive samples measurement strategy was employed. Data were used to calculate 8-hour time-weighted averages (8-TWA) for major work groups an ...
    Public Domain
  • Performance Evaluation of the Sampling Head and Annular Kinetic Impactor in the Savannah River Site Alpha Continuous Air Monitor
    Performance Evaluation of the Sampling Head and Annular Kinetic Impactor in the Savannah River Site Alpha Continuous Air Monitor
    Chen BT ;
    Gregory DS
    1999/07/01 | National Institute for Occupational Safety and Health (NIOSH)
    This paper describes evaluation and testing of the Savannah River Site (SRS) impactor-type alpha continuous air monitor (CAM) to determine the particle delivery and collection efficiency in the device using fluorescence-labeled, polystyrene latex spheres and liquid droplet aerosols. Particle sampling efficiency through the dome-shape sampling inlet ...
    Public Domain
  • The Role of Superoxide Radical in TNFAlpha Induced NFkappaB Activation
    The Role of Superoxide Radical in TNF-Alpha Induced NF-kappaB Activation
    Castranova, Vincent ;
    Leonard, Stephen S.
    1999/07/01 | National Institute for Occupational Safety and Health (NIOSH)
    Electron spin resonance (ESR) spin trapping with 5-(diethioxyphosphoyl)-5-methyl-1-pyrroline N-oxide (DEPMPO) was utilized to investigate the generation of oxygen free radicals from macrophages stimulated by tumor necrosis factor-alpha (TNF-alpha). TNF-alpha stimulated macrophages generated hydroxyl (*OH) and superoxide anion (O2*-) radicals. Incub ...
    Public Domain
  • Prediction of Respiratory Distress During Maximal Physical Exercise The Role of Trait Anxiety
    Prediction of Respiratory Distress During Maximal Physical Exercise: The Role of Trait Anxiety
    Morgan WP ;
    Raven PB
    1999/07/01 | National Institute for Occupational Safety and Health (NIOSH)
    Industrial respirators offer protection for men and women who are required to work in toxic and oxygen-deficient environments. Major advances continue to be made with respect to improved face mask designs and modes of protection, yet only recently have efforts been directed toward the development of criteria for use in evaluating individuals' psych ...
  • National Childrens Center for Rural and Agricultural Health and Safety Summary of Activities 1998
    National Children’s Center for Rural and Agricultural Health and Safety: Summary of Activities 1998
    Friesen M
    1999/07/01 | National Institute for Occupational Safety and Health (NIOSH)
    The 1996 National Action Plan, Children and Agriculture: Opportunities for Safety and Health serves as the template for planning and implementing specific activities for protecting youth from hazards associated with production agriculture in the United States. Our National Children's Center for Rural and Agricultural Health and Safety (NCCRAHS) was ...
  • Health Hazard Evaluation Report Health Hazard Evaluation Report 9900902744 Gwinnett Medical Center Lawrenceville Georgia
    Health Hazard Evaluation Report: Health Hazard Evaluation Report 99–0090–2744: Gwinnett Medical Center, Lawrenceville, Georgia
    Esswein, Eric J. ;
    Kastings, Christine
    1999/07/01 | Health Hazard Evaluation Reports (HHE)
    On February 1, 1999, the National Institute for Occupational Safety and Health (NIOSH) received a management request for a health hazard evaluation (HHE) at the Gwinnett Medical Center (GMC) in Lawrenceville, Georgia. The request asked NIOSH to determine if workplace exposures are related to health problems reportedly experienced by some GMC employ ...
    Public Domain
  • Master electrician electrocuted while installing fluorescent lighting at a commercial establishmentMaryland
    Master electrician electrocuted while installing fluorescent lighting at a commercial establishment--Maryland
    Schneiderman, Aaron I. ;
    Ticer, Letha
    1999/07/01 | Fatality Assessment and Control Evaluation Reports (FACE)
    A 35-year-old male master electrician was electrocuted while stripping insulation from the energized conductors of a metal-clad (MC) cable. The victim was working alone installing wiring in an emergency egress hallway of a commercial establishment and apparently was unaware that the cable was energized with 277 volts. No personal protective equipme ...
  • Appliance repair person was electrocuted in a repair shop while diagnosing the problem with a microwave ovenMaryland
    Appliance repair person was electrocuted in a repair shop while diagnosing the problem with a microwave oven--Maryland
    Schneiderman, Aaron I. ;
    Ticer, Letha
    1999/07/01 | Fatality Assessment and Control Evaluation Reports (FACE)
    A 43-year-old male appliance repair-person (the victim) was electrocuted while performing diagnostic tests on a malfunctioning microwave oven. The victim had stopped by another appliance repair shop to pick up overflow work he had left for service. Before departing he brought a microwave oven into the shop and asked if he could spend a few minutes ...
  • Young Workers
    Young Workers
    Castillo, Dawn N. ;
    Davis, Letitia
    1999/07/01 | National Institute for Occupational Safety and Health (NIOSH)
    Until recently, today's occupational safety and health experts have paid little attention to safety and health concerns of working youth. Yet with millions of children and adolescents employed each year, young workers are indeed a special population at risk deserving special attention. Occupational safety and health professionals have critical know ...
    Public Domain
  • Proficiency Analytical Testing PAT Silica Variability 19901998
    Proficiency Analytical Testing (PAT) Silica Variability, 1990–1998
    Eller, Peter M. ;
    Esche, Curtis A.
    1999/07/01 | National Institute for Occupational Safety and Health (NIOSH)
    Industrial hygiene laboratories use one of three analytical techniques (X-ray diffraction spectrometry, infrared absorption spectrometry, and colorimetric spectrophotometry) for the quantitative determination of crystalline silica. Interlaboratory variability historically has been high for these analyses (about 25-35% relative standard deviation). ...
    Public Domain
  • Control of Exposure to Perchloroethylene in Commercial Drycleaning Substitution
    Control of Exposure to Perchloroethylene in Commercial Drycleaning (Substitution)
    National Institute for Occupational Safety and Health
    1999/07/01 | National Institute for Occupational Safety and Health (NIOSH)
    Defnition of Hazard Perchloroethylene (PERC) is the most commonly used dry cleaning solvent. PERC can enter the body through respiratory and dermal exposure. Symptoms associated with exposure include depression of the central nervous system; damage to the liver and kidneys; impaired memory; confusion; dizziness; headac he; drowsiness; and eye, nose ...
    Public Domain
  • Approaches to Addressing Occupational and Environmental Health Needs in Mexico
    Approaches to Addressing Occupational and Environmental Health Needs in Mexico
    Barile R ;
    Froines JR
    1999/07/01 | National Institute for Occupational Safety and Health (NIOSH)
    The University of California, Los Angeles, has somewhat shifted the focus of its Fogarty program, taking a four-pronged approach: conducting high-level collaborative scientific research with Mexican faculty and trainees at the most advanced institutions in the country; providing training and collaborative research opportunities to faculty/students ...
  • Back Pain Prevalence in US Industry and Estimates of Lost Workdays
    Back Pain Prevalence in US Industry and Estimates of Lost Workdays
    Cameron, Lorraine L. ;
    Guo H
    1999/07/01 | National Institute for Occupational Safety and Health (NIOSH)
    Back pain is the most common reason for filing workers' compensation claims and often causes lost workdays. Data from the 1988 National Health Interview Survey were analyzed to identify high-risk industries and to estimate the prevalence of work-related back pain and number of workdays lost. Analyses included 30074 respondents who worked during the ...
    Public Domain
47801 - 47820 / 82805