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Showing 46721 - 46740 of 82805 results
  • The Electromagnetic SelfForce on a Charged Spherical Body Slowly Undergoing a Small Temporary Displacement from a Position of Rest
    The Electromagnetic Self-Force on a Charged Spherical Body Slowly Undergoing a Small, Temporary Displacement from a Position of Rest
    Hnizdo, Vladimir
    2000/06/01 | National Institute for Occupational Safety and Health (NIOSH)
    The self-force of classical electrodynamics on a charged 'rigid' body of radius R is evaluated analytically for the body undergoing a slow (i.e., with a speed v<<c), slight (i.e., small compared to R), and temporary displacement from an initial position of rest. The results are relevant to the Bohr-Rosenfeld analysis of the measurability of the ele ...
    Public Domain
  • Immunological Responses of Mice Following Administration of Natural Rubber Latex Proteins by Different Routes of Exposure
    Immunological Responses of Mice Following Administration of Natural Rubber Latex Proteins by Different Routes of Exposure
    Meade BJ ;
    Munson AE
    2000/06/01 | National Institute for Occupational Safety and Health (NIOSH)
    Although the prevalence of IgE-mediated latex allergy has increased over the past decade, the circumstances which culminate in sensitization remain uncertain. The objective of these studies was to evaluate the role which sensitization route plays in the development of latex allergy using murine models representative of potential exposure routes by ...
    Public Domain
  • Aerobic Exercise as a Countermeasure for MicrogravityInduced Bone Loss and Muscle Atrophy in a Rat Hindlimb Suspension Model
    Aerobic Exercise as a Countermeasure for Microgravity-Induced Bone Loss and Muscle Atrophy in a Rat Hindlimb Suspension Model
    Bradley-Popovich G ;
    Bryner RW
    2000/06/01 | National Institute for Occupational Safety and Health (NIOSH)
    Background: Loss of bone and skeletal muscle atrophy resulting from non-weight-bearing are major concerns associated with microgravity environment and spaceflight deconditioning. The objective of this research was to address the fundamental issue of whether bone loss and muscle atrophy could be attenuated using weight-bearing aerobic exercise on a ...
    Public Domain
  • InDepth Survey Report Control Technology for Environmental Enclosures An Evaluation of InUse Enclosures at San Joaquin Helicopter Company Delano California
    In-Depth Survey Report: Control Technology for Environmental Enclosures: An Evaluation of In-Use Enclosures at San Joaquin Helicopter Company, Delano, California
    Heitbrink, William A. ;
    Moyer, Ernest S.
    2000/06/01 | Engineering and Physical Hazards Survey Reports
    Tractors equipped with environmental enclosures can be used to protect worker from pesticide spray mist and other particulate air contaminants. In these cabs, a fan pulls air through filters and then blows this cleaned air into a cab, pressurizing the cab. These enclosures may be used instead of respirators to protect the workers from pesticide spr ...
    Public Domain
  • Hazards of Ethyl Methacrylate
    Hazards of Ethyl Methacrylate
    Estill, Cheryl F. ;
    Jones, James H.
    2000/06/01 | National Institute for Occupational Safety and Health (NIOSH)
    This letter is in response to the commentary of Dr. Edward M. Jackson in the March 1999 issue of the American Journal of Contact Dermatitis. In his commentary, Dr. Jackson suggests that the hazards of ethyl methacrylate are overstated. We would like to respond. Dr. Jackson states that a National Institute for Occupational Safety and Health (NIOSH) ...
    Public Domain
  • Natural Rubber Latex Glove Use Sensitization and Airborne and Latent Dust Concentrations at a Denver Hospital
    Natural Rubber Latex: Glove Use, Sensitization, and Airborne and Latent Dust Concentrations at a Denver Hospital
    Bledsoe TA ;
    Esswein, Eric J.
    2000/06/01 | National Institute for Occupational Safety and Health (NIOSH)
    Exposure to natural rubber latex may cause immediate hypersensitivity reactions. Published latex sensitization prevalence rates range from 2.9% to 22% among health care workers, and from 0.12% to about 20% of occupationally unexposed populations. In this study, self-administered questionnaires addressed job and personal characteristics, glove use, ...
    Public Domain
  • Deep Cut Ground Control and Worker Safety in Coal Mines
    Deep Cut: Ground Control and Worker Safety in Coal Mines
    Bauer, Eric R. ;
    Bise CJ
    2000/06/01 | Mining Publications
    The trend in underground room-and-pillar coal mining is to employ remote-controlled, continuous-mining machines and extended cuts to depths of 12 m (40 ft) or more. This system of coal extraction, adopted by more than 435 mines, can create additional worker safety hazards. To address the ground-control-related safety hazards, a combination of stati ...
    Public Domain
  • Bronchoalveolar Lavage MacrophageLymphocyte Clusters in Granulomatous Disease Are Linked to Lymphocytosis
    Bronchoalveolar Lavage Macrophage-Lymphocyte Clusters in Granulomatous Disease Are Linked to Lymphocytosis
    Balkissoon R ;
    Bauer RA
    2000/06/01 | National Institute for Occupational Safety and Health (NIOSH)
    Clusters of macrophages associated with lymphocytes (ML clusters) have been observed among the bronchoalveolar lavage (BAL) cells of patients with pulmonary disease. We tested the hypothesis that ML clusters might be found among the BAL cells from patients with granulomatous disease. We measured the number of ML clusters among the BAL cells from no ...
  • A Simulation Approach Analyzing Random Motion Events Between a Machine and its Operator 2000012160
    A Simulation Approach Analyzing Random Motion Events Between a Machine and its Operator [2000-01-2160]
    Ambrose, Dean H.
    2000/06/01 | Mining Publications
    This paper presents an approach for representing and analyzing random motions and hazardous events in a simulated three-dimensional workplace, providing designers and analysts with a new technique for evaluating operator-machine interaction hazards in virtual environments. Technical data in this paper is based upon a project striving to reduce work ...
    Public Domain
  • Effect of Ozone Treatment on Airway Reactivity and EpitheliumDerived Relaxing Factor in Guinea Pigs
    Effect of Ozone Treatment on Airway Reactivity and Epithelium-Derived Relaxing Factor in Guinea Pigs
    Cutler D ;
    Dey RD
    2000/06/01 | National Institute for Occupational Safety and Health (NIOSH)
    Ozone (O(3)) is toxic to respiratory epithelium and causes airway inflammation and hyperreactivity. To evaluate the role of the epithelium in the development of hyperreactivity, we examined in guinea pigs the effects of inhaled O(3) (3 ppm for 1 h; 0-24 h after exposure) on 1) reactivity to inhaled methacholine (MCh), 2) reactivity of the isolated, ...
    Public Domain
  • The Specificity of the National Death Index and Social Security Administration Death Master File When Information on Social Security Number Is Lacking
    The Specificity of the National Death Index and Social Security Administration Death Master File When Information on Social Security Number Is Lacking
    Foster SO ;
    Schubauer-Berigan, Mary K.
    2000/06/01 | National Institute for Occupational Safety and Health (NIOSH)
    Researchers conducting large cohort mortality studies often rely on the National Death Index (NDI) and the Social Security Administration (SSA) to obtain vital status information. Sensitivity and specificity are two performance criteria important in vital status database matching. Although the NDI has demonstrated high specificity using Social Secu ...
    Public Domain
  • Sleep Disturbance Among Female Flight Attendants and Teachers in a Reproductive Biomonitoring Study
    Sleep Disturbance Among Female Flight Attendants and Teachers in a Reproductive Biomonitoring Study
    Cole RJ ;
    Grajewski, Barbara A.
    2000/06/01 | National Institute for Occupational Safety and Health (NIOSH)
    Many of the 82,000 US flight attendants (FAs) may experience circadian rhythm disruption due to travel through multiple time zones. This study investigated whether FAs are at higher risk for sleep disturbance compared to teachers, as measured by questionnaire and wrist activity monitors (actigraphs). Sleep/wake cycles of 45 female FAs and 26 teache ...
    Public Domain
  • PressureTunable Column Selectivity for HighSpeed VacuumOutlet GC
    Pressure-Tunable Column Selectivity for High-Speed Vacuum-Outlet GC
    Grall AJ ;
    Sacks RD
    2000/06/01 | National Institute for Occupational Safety and Health (NIOSH)
    A pressure-tunable ensemble of two series-coupled capillary columns operated at subambient outlet pressure is described. The ensemble consists of a 4.5-m length of nonpolar dimethyl polysiloxane column followed by a 7.5-m length of polar trifluoropropylmethyl polysiloxane column. Air at an inlet pressure of 1.0 atm is used as carrier gas, and a vac ...
  • Health Hazard Evaluation Report HETA 9602002799 Rhode Island Department of Health Providence Rhode Island
    Health Hazard Evaluation Report: HETA 96–0200–2799: Rhode Island Department of Health, Providence, Rhode Island
    Piacitelli, Gregory M. ;
    Sussell, Aaron L.
    2000/06/01 | Health Hazard Evaluation Reports (HHE)
    At the request of the Rhode Island Department of Health (RI DOH), we evaluated worker lead exposures during U.S. Department of Housing and Urban Development (HUD)-funded residential lead hazard reduction in Rhode Island. RI DOH was concerned that workers might be unnecessarily wearing respirators and protective clothing during various tasks. The pr ...
    Public Domain
  • Sanitation assistant crushed between garbage truck and compactor
    Sanitation assistant crushed between garbage truck and compactor
    Etre, Lois A. ;
    Johnson, Wayne
    2000/06/01 | Fatality Assessment and Control Evaluation Reports (FACE)
    A 30 year-old male sanitation assistant (the victim) was crushed by the hydraulically powered tailgate of a garbage truck while unloading garbage at a county landfill. The truck operator and the victim had just finished unloading their garbage truck, lowered the tailgate to the 3/4 closed position and had cleaned the tailgate latching screws. Befor ...
  • CostBenefit of Muscle Cocontraction in Protecting Against Spinal Instability
    Cost-Benefit of Muscle Cocontraction in Protecting Against Spinal Instability
    Granata KP ;
    Marras WS
    2000/06/01 | National Institute for Occupational Safety and Health (NIOSH)
    STUDY DESIGN: Lifting dynamics and electromyographic activity were evaluated using a biomechanical model of spinal equilibrium and stability to assess cost-benefit effects of antagonistic muscle cocontraction on the risk of stability failure. OBJECTIVES: To evaluate whether increased biomechanical stability associated with antagonistic cocontractio ...
  • Loss Education to Reduce Construction Related Injuries
    Loss Education to Reduce Construction – Related Injuries
    Kidd P ;
    Parshall M
    2000/06/01 | Grant Final Reports
    The goal of this study was to develop and test the effectiveness of a safety training intervention for employees, supervisors, and owners of small construction firms (= 10 employees) in Kentucky. The project involved a partnership between the Kentucky Injury Prevention and Research Center (KIPRC) and Kentucky Employers' Mutual Insurance (KEMI). The ...
  • Four Earplugs in Search of a Rating System
    Four Earplugs in Search of a Rating System
    Franks, John R. ;
    Harris DA
    2000/06/01 | National Institute for Occupational Safety and Health (NIOSH)
    The performance of four insert earplugs was evaluated by determining the Noise Reduction Rating (NRR) and the Subject-Fit Noise Reduction Rating [NRR(SF)]. The NRR and NRR(SF) were calculated from real-ear attenuation at threshold (REAT) data collected using the experimenter-fit protocol described in the now-rescinded ANSI S3.19-1974 (American Nati ...
    Public Domain
  • Health Hazard Evaluation Report HETA 9901222798 Lockheed Martin Aeronautical Systems Marietta Georgia
    Health Hazard Evaluation Report: HETA 99-0122-2798: Lockheed Martin Aeronautical Systems, Marietta, Georgia
    Reh, Christopher M. ;
    Roegner, Kevin C.
    2000/06/01 | Health Hazard Evaluation Reports (HHE)
    On November 30, 1998, the National Institute for Occupational Safety and Health (NIOSH) received a management request for a health hazard evaluation (HHE) at Lockheed Martin Aeronautical Systems (LMAS) in Marietta, Georgia. The request centered on workers' exposures to isocyanate-containing compounds during spray painting operations. On February 17 ...
    Public Domain
  • Chemical Carcinogenesis
    Chemical Carcinogenesis
    Harris CC ;
    Weston A
    2000/06/01 | National Institute for Occupational Safety and Health (NIOSH)
    Chemical carcinogenesis is a multi-stage process that begins with exposure, usually to complex mixtures of chemicals that are found in the human environment (Table 12.1). 1-3 Once internationalized, carcinogens frequently are subjected to competing metabolic pathways of activation and detoxication, although some reactive environmental chemicals can ...
    Public Domain
46721 - 46740 / 82805