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Showing 46201 - 46220 of 82804 results
  • Now what do we do with these good numbers
    Now what do we do with these good numbers?
    Franks, John R. ;
    Murphy, William J.
    2000/11/01 | National Institute for Occupational Safety and Health (NIOSH)
    Present ANSI and ISO standards suggest calculating the mean real-ear-attenuation at threshold (REAT) and the standard deviations as well. These are used for calculating assume protection values (APVs) that are incorporated in calculations of the NRR in the United States and the SNR and HML in Europe and elsewhere. One of the discoveries from intens ...
    Public Domain
  • Particle settling after leadbased paint abatement work and clearance waiting period
    Particle settling after lead-based paint abatement work and clearance waiting period
    Bornschein R ;
    Choe, Kyoo T.
    2000/11/01 | National Institute for Occupational Safety and Health (NIOSH)
    This study investigated the evolution of airborne particle concentration and size distribution following abatement work in a controlled environment utilizing direct real-time particle monitoring and used it to project potential lead loadings as those particles settle. An 860 ft3 environmental test chamber with sophisticated ventilation and air puri ...
  • Upregulation of NFkappaB p50 during neuronal adaptation after chemotoxic injury to the hippocampus
    Upregulation of NF-kappaB p50 during neuronal adaptation after chemotoxic injury to the hippocampus.
    Kassed CA ;
    O'Callaghan JP
    2000/11/01 | National Institute for Occupational Safety and Health (NIOSH)
    NF-kB p50 transcription factor levels throughout the rodent hippocampus are upregulated in surviving neurons twenty-four hours after a single injection of trimethyltin (TMT), the well-characterized neurotoxicant with exquisite selectivity toward stannin-expressing neurons. p50-expressing neurons are not positive for Fluoro-Jade, a marker of neurona ...
    Public Domain
  • Tanker Rollover Claims Life of Volunteer Fire Chief Missouri
    Tanker Rollover Claims Life of Volunteer Fire Chief – Missouri
    Romano, Nancy T. ;
    Cortez, Kimberly L.
    2000/11/01 | Fire Fighter Fatality Investigation and Prevention Program (FFFIPP)
    Death in the Line of Duty…a Summary of a NIOSH Fire Fighter Fatality InvestigationOn January 17, 2000, a 47-year-old male volunteer Fire Chief (the victim) died after he lost control of the truck he was driving, and the truck rolled three times and came to rest on an embankment. At 1512 hours, the volunteer fire department was dispatched for mutual ...
    Public Domain
  • Induction of Micronuclei Following Exposure to Methylene DiPhenyl Diisocyanate Potential Genotoxic Metabolites
    Induction of Micronuclei Following Exposure to Methylene Di-Phenyl Diisocyanate: Potential Genotoxic Metabolites
    Siegel, Paul D. ;
    Zhong BZ
    2000/11/01 | National Institute for Occupational Safety and Health (NIOSH)
    Methylene di-phenyl diisocyanate (MDI) is used to make polyurethane products. The predominant occupational disease attributed to diisocyanates, including MDI, is asthma; however, the potential for genotoxicity has also been of concern. Diisocyanates are very reactive compounds that can undergo nonenzymatic hydrolysis to form methylenedianiline (MDA ...
    Public Domain
  • Reactive Airways Dysfunction Syndrome RADS
    Reactive Airways Dysfunction Syndrome (RADS)
    Tumpowsky CM
    2000/11/01 | National Institute for Occupational Safety and Health (NIOSH)
    This month's issue focuses on a form of work-related asthma known as RADS which may develop after an acute over-exposure to an irritating vapor, fume, smoke or dust. Two recently reported cases of RADS are presented followed by a description of this form of asthma. Approximately ten percent of the WRA cases interviewed by Massachusetts SENSOR are c ...
  • Patterns and Predictors of Employer RiskReduction Activities ERRAs in Response to a WorkRelated Upper Extremity Cumulative Trauma Disorder UECTD Reports from Workers Compensation Claimants
    Patterns and Predictors of Employer Risk-Reduction Activities (ERRAs) in Response to a Work-Related Upper Extremity Cumulative Trauma Disorder (UECTD): Reports from Workers’ Compensation Claimants
    Gordon, Jane E. ;
    Gucer P
    2000/11/01 | National Institute for Occupational Safety and Health (NIOSH)
    Despite being preventable, work-related upper extremity cumulative trauma disorders (UECTDs) remain problematic. This study is unique in its focus on predictors of employer risk-reduction activities (ERRAs) in response to a UECTD case. Workers' compensation claimants (N = 537) completed a telephone survey about employer risk-reduction activities, w ...
  • Characterization of Clinical Tolerance to Inhaled Zinc Oxide in Naive Subjects and Sheet Metal Workers
    Characterization of Clinical Tolerance to Inhaled Zinc Oxide in Naive Subjects and Sheet Metal Workers
    Beckett WS ;
    Chen LC
    2000/11/01 | National Institute for Occupational Safety and Health (NIOSH)
    Clinical tolerance to the acute effects of zinc oxide inhalation develops in workers during periods of repeated exposure. The aims of this study were to determine whether clinical tolerance is accompanied by a reduction in the acute pulmonary inflammatory and cytokine responses to zinc oxide exposure and whether tolerance can be demonstrated in she ...
  • Effect of Resistance Training on Muscle Fatigue and Recovery in Intact Rats
    Effect of Resistance Training on Muscle Fatigue and Recovery in Intact Rats
    Stauber WT ;
    Willems ME
    2000/11/01 | National Institute for Occupational Safety and Health (NIOSH)
    To examine the effect of resistance training on muscle fatigue from intermittent contractions and subsequent recovery in intact rats. By using electrical stimulation, plantar flexor muscles were trained with eccentric and concentric contractions (5 x 10 repetitions, 5 d x wk(-1) for 6 wk) during ankle rotations. By using nerve stimulation, concentr ...
  • Free RadicalMediated Transgene Inactivation of Macrophages by Endotoxin
    Free Radical-Mediated Transgene Inactivation of Macrophages by Endotoxin
    Dokka S ;
    Huang CS
    2000/11/01 | National Institute for Occupational Safety and Health (NIOSH)
    Endotoxin, the lipopolysaccharide component of gram-negative bacteria, is a common contaminant of plasmid DNA preparations. The present study investigated the effect of endotoxin on gene transfection efficiency and the role of reactive oxygen species (ROS) in this process. Gene transfection studies were performed in various cell types with cytomega ...
    Public Domain
  • The NIOSHFAA Working Womens Health Study Evaluation of the CosmicRadiation Exposures of Flight Attendants
    The NIOSH/FAA Working Women’s Health Study: Evaluation of the Cosmic-Radiation Exposures of Flight Attendants
    Bloom, Thomas F. ;
    Grajewski, Barbara A.
    2000/11/01 | National Institute for Occupational Safety and Health (NIOSH)
    Air crew are exposed to elevated levels of cosmic ionizing radiation of galactic and solar origin and are among the more highly exposed occupational groups to ionizing radiation in the United States. Depending on flight route patterns, the annual dose may range from 0.2 to 5 mSv. By comparison, the average annual radiation dose equivalent of occupa ...
    Public Domain
  • Suffering in Silence A Report on the Health of Californias Agricultural Workers
    Suffering in Silence: A Report on the Health of California’s Agricultural Workers
    Bade B ;
    Lighthall D
    2000/11/01 | National Institute for Occupational Safety and Health (NIOSH)
    This report summarizes the initial findings of a large-scale, statewide, population-based survey of the health status of California's agricultural workers carried out in 1999. The survey was conducted by the California Institute for Rural Studies (CIRS), a private, non-profit research organization based in Davis, Calif. The California Agricultural ...
  • Effect of Silica Inhalation on the Pulmonary Clearance of a Bacterial Pathogen in Fischer 344 Rats
    Effect of Silica Inhalation on the Pulmonary Clearance of a Bacterial Pathogen in Fischer 344 Rats
    Antonini JM ;
    Barger MW
    2000/11/01 | National Institute for Occupational Safety and Health (NIOSH)
    Silica inhalation predisposes workers to bacterial infection and impairments in pulmonary defense function. In this study, we evaluated the effect of pre-exposure to silica on lung defense mechanisms by use of a rat pulmonary Listeria monocytogenes infection model. Male Fischer 344 rats were exposed by inhalation to filtered air or silica (15 mg/m3 ...
    Public Domain
  • Proposed Design Modifications to Reduce Risk of Operating Rotary Field Mowers
    Proposed Design Modifications to Reduce Risk of Operating Rotary Field Mowers
    Piercy LR ;
    Shearer SA
    2000/11/01 | National Institute for Occupational Safety and Health (NIOSH)
    The primary objective of this project was to reduce risk of injury associated with operating a rotary mower driven by a tractor power take-off (PTO) by developing and evaluating design improvements and determining their economic feasibility. Researchers have concluded that alteration of machinery design has a greater impact on the reduction of acci ...
  • Impact of the Stress Hormone Corticosterone on Hippocampal Response to Neurotoxic Injury in Susceptible and Resistant Mouse Strains
    Impact of the Stress Hormone Corticosterone on Hippocampal Response to Neurotoxic Injury in Susceptible and Resistant Mouse Strains
    Benkovic SA ;
    Miller DB
    2000/11/01 | National Institute for Occupational Safety and Health (NIOSH)
    Stress hormones can interact with neurotoxic compounds to exacerbate or attenuate the toxicity caused by these agents. We are currently investigating the effects of the neurotoxicant kainic acid in susceptible and resistant mouse strains, and whether the stress hormone corticosterone is able to modulate kainate induced neurotoxicity. Evaluation of ...
    Public Domain
  • General Estimates of WorkRelated Noises
    General Estimates of Work-Related Noises
    National Institute for Occupational Safety and Health
    2000/11/01 | NIOSH Numbered Publications
    General estimated are given for various work-related noises. They range from a 12-gauge shotgun at 165 decibels to a whisper at 30 decibels. Some of the others include a chain saw at 110 decibels and a jet engine at 140 decibels. Any noise above 85 decibels may cause hearing loss. [Description provided by NIOSH]
    Public Domain
  • Iowa occupational safety and health training program
    Iowa occupational safety and health training program.
    Sprince NL
    2000/10/27 | Grant Final Reports
    The University of Iowa Occupational Health and Safety Training Program, with support from the National Institute for Occupational Safety and Health (NIOSH), has provided graduate training in industrial hygiene and residency training in occupational medicine since 1982. The primary objective of this training grant is to contribute to the prevention ...
  • Machine Operator Falls from Order Picker
    Machine Operator Falls from Order Picker
    Hetzler, William E. ;
    Hirsh, Gary L.
    2000/10/24 | Fatality Assessment and Control Evaluation Reports (FACE)
    A 30-year-old machine operator, at a furniture store warehouse, was killed when he fell approximately 14 feet from the operating platform of an electrically-powered Crown high-lift rider, commonly referred to as an order picker. When the incident happened, the victim was in the process of going to get a television set (in a box) from a storage shel ...
  • MotorVehicle Incident Claims the Life of a Volunteer Fire Fighter and Injures a Volunteer Chief Virginia
    Motor-Vehicle Incident Claims the Life of a Volunteer Fire Fighter and Injures a Volunteer Chief – Virginia
    Cortez, Kimberly L. ;
    Schmidt, Eric R.
    2000/10/23 | Fire Fighter Fatality Investigation and Prevention Program (FFFIPP)
    Death in the Line of Duty…a Summary of a NIOSH Fire Fighter Fatality InvestigationOn December 18, 1999, a 22-year-old male volunteer fire fighter (the victim) died and a 30-year-old volunteer District Chief was injured after the rescue truck he was driving veered off the road, struck an oncoming car and then a tree. The incident occurred while they ...
    Public Domain
  • Vanadate Induces p53 Transactivation Through Hydrogen Peroxide and Causes Apoptosis
    Vanadate Induces p53 Transactivation Through Hydrogen Peroxide and Causes Apoptosis
    Butterworth L ;
    Castranova, Vincent
    2000/10/20 | National Institute for Occupational Safety and Health (NIOSH)
    Vanadium is a metal widely distributed in the environment. Although vanadate-containing compounds exert potent toxic effects on a wide variety of biological systems, the mechanisms controlling vanadate-induced adverse effects remain to be elucidated. The present study investigated the vanadate-induced p53 activation and involvement of reactive oxyg ...
    Public Domain
46201 - 46220 / 82804