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Showing 43941 - 43960 of 82803 results
  • Design of a Novel Instrumentation for Measurement of Blood Flow While Gripping a Handle
    Design of a Novel Instrumentation for Measurement of Blood Flow While Gripping a Handle
    Afshari AA ;
    Frazer DG
    2002/06/01 | National Institute for Occupational Safety and Health (NIOSH)
    The purpose of this study was to design a prehensile device which could be coupled with a Laser Doppler Flowmetry (LDF) system to simultaneously measure components of grip force, push force and blood flow on the inside of the hand surface. This device will enable physicians, researchers, and designers of hand-held equipment to study blood circulati ...
    Public Domain
  • In Mine Evaluation of Discriminating Mine Fire Sensors
    In Mine Evaluation of Discriminating Mine Fire Sensors
    06/01/2002 | NIOSH
    An evaluation of multiple mine fire sensor types for nuisance alarm discrimination. The response of multiple fire sensor types to three small coal fires and three small conveyor belt fires in the presence of diesel emissions was evaluated.
    Public Domain
  • Sensorimotor Control of the Spine
    Sensorimotor Control of the Spine
    Holm S ;
    Indahl A
    2002/06/01 | National Institute for Occupational Safety and Health (NIOSH)
    The spinal viscoelastic structures including disk, capsule and ligaments were reviewed with special focus on their sensory motor functions. Afferent capable of monitoring proprioceptive and kinesthetic information are abundant in the disc, capsule and ligament. Electrical stimulation of the lumbar afferents in the discs, capsules and ligaments seem ...
  • Evaluation of Existing Technologies for the Control of Workers Exposures to Hexavalent ChromiumContaining Mists Dusts and Fumes
    Evaluation of Existing Technologies for the Control of Workers’ Exposures to Hexavalent Chromium-Containing Mists, Dusts, and Fumes
    Bennett J ;
    Blade, Leo M.
    2002/06/01 | National Institute for Occupational Safety and Health (NIOSH)
    The National Institute for Occupational Safety and Health (NIOSH) conducted 21 field surveys in selected industries, to characterize workers' exposures to hexavalent chromium-containing airborne particulate and evaluate existing technologies for controlling these exposures. Hexavalent chromium (Cr[VI]) is a respiratory irritant, and chronic inhalat ...
    Public Domain
  • Powered AirPurifying Particulate Respirator Integrity Testing with a DOP Challenge Aerosol
    Powered Air-Purifying Particulate Respirator Integrity Testing with a DOP Challenge Aerosol
    Jensen P ;
    Martin, Stephen B. Jr.
    2002/06/01 | National Institute for Occupational Safety and Health (NIOSH)
    Several workplace protection factor and simulated workplace protection factor studies have been conducted on Powered Air-Purifying Respirators (PAPRs). While these serve to provide useful information regarding the performance capabilities of PAPRs under certain workplace or simulated workplace conditions, most fail to address the issue of total PAP ...
    Public Domain
  • Exposure Assessment and Engineering Control Strategies for RF Fields
    Exposure Assessment and Engineering Control Strategies for RF Fields
    Cardarelli, John J. II ;
    Conover, David L.
    2002/06/01 | National Institute for Occupational Safety and Health (NIOSH)
    The National Institute for Occupational Safety and Health (NIOSH) conducted an investigation at a fluorescent lamp manufacturing facility as aprt of the Health Hazard Evaluation Program. This facility produces fluorescent lamps of various sizes and wattages that are used throughout the world for standard illumination. One objective of the investiga ...
    Public Domain
  • Airborne exposure to heavy metals and total particulate during abrasive blasting using copper slag abrasive
    Airborne exposure to heavy metals and total particulate during abrasive blasting using copper slag abrasive
    Cashell L ;
    Seymour M
    2002/06/01 | National Institute for Occupational Safety and Health (NIOSH)
    This research investigates occupational exposure to metal and total particulate aerosols during abrasive blasting operations using one substitute abrasive, copper slag. Airborne exposures to metal (As, Be, Pb, Cr, Cd, V, and Ti) and total particulate aerosols from two copper slag sources are evaluated by the collection and analysis of personal brea ...
  • Occupational Exposures to Infectious Diseases During Body Piercing An Evaluation of Two Piercing Salons
    Occupational Exposures to Infectious Diseases During Body Piercing: An Evaluation of Two Piercing Salons
    Weber, Angela M.
    2002/06/01 | National Institute for Occupational Safety and Health (NIOSH)
    In 1999, NIOSH responded to requests from two piercing studios in Florida to evaluate potential occupational exposures to infectious diseases during body piercing. Both requests were prompted by a Florida ruling requiring the Department of Health to regulate body piercing studios. The primary purpose of the ruling is to prevent infections in those ...
    Public Domain
  • Field Evaluation of a LIBS Sampler for Determining Surface Contamination Due to Beryllium
    Field Evaluation of a LIBS Sampler for Determining Surface Contamination Due to Beryllium
    Beaton S ;
    French P
    2002/06/01 | National Institute for Occupational Safety and Health (NIOSH)
    A prototype multi-spectral, laser induced breakdown spectrometer (LIBS) was used to collect information on potential beryllium contamination of work surfaces and equipment. The LIBS instrument used an adjustable, high resolution spectrograph equipped with a photodiode array to collect 512 channels of emission spectra over the wavelength range from ...
    Public Domain
  • US Department of Energy Site Remediation Workers Assessing the Availability of Worker Exposure and Medical History Information
    U.S. Department of Energy Site Remediation Workers: Assessing the Availability of Worker, Exposure, and Medical History Information
    Ahrenholz, Steven H. ;
    Kinnes, Gregory M.
    2002/06/01 | National Institute for Occupational Safety and Health (NIOSH)
    Since 1989, the U.S. Department of Energy (DOE) mission has shifted from weapons production toward environmental restoration and remediation at 134 former and current sites. Remediation workers face diverse and sometimes unanticipated exposure hazards, both radiological and chemical, not previously encountered by production era workers. The Nationa ...
    Public Domain
  • A Multiple FrameofReference Scheme for Assigning Appropriate Rotameter Correction Factors
    A Multiple Frame-of-Reference Scheme for Assigning Appropriate Rotameter Correction Factors
    Hoover M
    2002/06/01 | National Institute for Occupational Safety and Health (NIOSH)
    Air sampling errors continue to occur when rotameters are used to monitor and control the sampling flow rate. Most errors can be traced to confusion over use of the rotameter equation and the ideal gas law to determine the flow rate associated with a given scale reading in relation to the calibrated flow rate for that scale reading. Most texts and ...
    Public Domain
  • Realizing Your Marketing Influence Part 2 Marketing from the Inside Out
    Realizing Your Marketing Influence, Part 2: Marketing from the Inside Out
    Cardin S ;
    Woods DK
    2002/06/01 | National Institute for Occupational Safety and Health (NIOSH)
    Do your key stakeholders (staff, physicians, and patients) consider your organization to be exceptional? Has your organization invested the resources necessary to support staff and physicians in delivering the high level of care they strive to give? An organization's managers who can enthusiastically answer "yes" to these questions are in a good po ...
  • Performance of exposure models in experimental rom for various thermal conditions airflow and worker locations
    Performance of exposure models in experimental rom for various thermal conditions, airflow and worker locations
    Feigley J ;
    Khan J
    2002/06/01 | National Institute for Occupational Safety and Health (NIOSH)
    Most simple mathematical models now in use for estimating exposure do not account for variation in airflow patterns and thermal conditions. Here measured breathing zone concentrations were compared with model estimates for various physical factors to explore model applicability. Contaminant distribution in the breathing zone (elevation=1.5m) in a 2 ...
  • Performance of SelfContained SelfRescuers During a Man Test 4 Protocol for the Automated Breathing and Metabolic Simulator
    Performance of Self-Contained Self-Rescuers During a Man Test 4 Protocol for the Automated Breathing and Metabolic Simulator
    Hota S ;
    Sinkule E
    2002/06/01 | Mining Publications
    The Automated Breathing and Metabolic Simulator (ABMS) simulates human oxygen consumption, carbon dioxide production, minute ventilation, and breathing waveforms. Using metabolic data collected during a one-hour Man Test 4 performed by human subjects, two ABMS Man Test 4 protocols were developed: one simulating an 86 kg subject (MT4-50) and one sim ...
    Public Domain
  • Portable Monitors for Airborne Lead at Mining Sites
    Portable Monitors for Airborne Lead at Mining Sites
    Ashley, Kevin E. ;
    Drake P
    2002/06/01 | Mining Publications
    Field portable instruments can be useful tools in protecting workers from excessive airborne lead exposures. At the present time, the most commonly used methods for measuring airborne lead involve collecting air samples on filters and sending them to an off-site laboratory, where a variety of analytical methods can be used. 1\.,10 methods for measu ...
    Public Domain
  • Transport and Utilization of Arginine and ArginineContaining Peptides by Rat Alveolar Macrophages
    Transport and Utilization of Arginine and Arginine-Containing Peptides by Rat Alveolar Macrophages
    Barger MW ;
    Ma JKH
    2002/06/01 | National Institute for Occupational Safety and Health (NIOSH)
    To demonstrate that rat alveolar macrophages (AM) exhibited the PepT1-like transporter for the uptake of arginine (Arg)-containing small peptides and utilized these peptides as direct substrates for nitric oxide (NO) production. NO is an important mediator that, on one hand, protects the lung from bacteria infection and, on the other hand, augments ...
    Public Domain
  • Training and quantifying voluntary plantarflexor movements of rats
    Training and quantifying voluntary plantar-flexor movements of rats
    Cutlip, Robert G. ;
    Gregory E
    2002/06/01 | National Institute for Occupational Safety and Health (NIOSH)
    The present paper describes a rat preparation that was designed to produce voluntary plantar-flexor movements under precise constraints and to record various movement parameters. Sixteen rats were trained with operant conditioning techniques and food rewards to voluntarily and repeatedly enter a vertical tube, insert its head into a ring, lift the ...
    Public Domain
  • The Paradox of Mixing in Industrial Ventilation
    The Paradox of Mixing in Industrial Ventilation
    Bennett J ;
    Feigley C
    2002/06/01 | National Institute for Occupational Safety and Health (NIOSH)
    Deviations of dilution ventilation equations often assume that a workroom is well-mixed. A flow rate requirement computed using one of these equations is then multiplied by a safety factor, the portion of which accounting for deviations from complete mixing has been called the mixing factor (Km). Here the scale (S) and intensity of mixing (I) were ...
  • Engineering Control of Airborne Contaminants at a Microwave Popcorn Packaging Plant
    Engineering Control of Airborne Contaminants at a Microwave Popcorn Packaging Plant
    Boylstein, Randy J. ;
    Heitbrink, William A.
    2002/06/01 | National Institute for Occupational Safety and Health (NIOSH)
    Severe respiratory disease has been reported in several workers in a microwave popcorn packaging plant. NIOSH was requested to find the cause and make recommendations for control. After providing initial respirator training and fit testing for workers in the highest expo- sure categories, attention turned to engineering solutions. Qualitative sampl ...
    Public Domain
  • Microbiological Contamination in a Large Metropolitan Hospital Following a Localized BurstPipe Induced Flooding Event
    Microbiological Contamination in a Large Metropolitan Hospital Following a Localized, Burst-Pipe Induced, Flooding Event
    Martinez, Kenneth F.
    2002/06/01 | National Institute for Occupational Safety and Health (NIOSH)
    In July 2001, NIOSH conducted a health hazard evaluation in a large metropolitan hospital to evaluate suspected microbiological contamination in a newly constructed, unoccupied surgical intensive care unit (SICU), adjacent offices, and laboratory space. Concern regarding suspect microbiological contamination was initiated subsequent to a brief floo ...
    Public Domain
43941 - 43960 / 82803