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Showing 45321 - 45340 of 82972 results
  • Development of Stress Measurements and Instrument Placement Techniques for Longwall Coal
    Development of Stress Measurements and Instrument Placement Techniques for Longwall Coal
    07/01/2001 | NIOSH
    A system was developed to monitor rock and coal stresses during mining of an entire longwall panel. The system was designed to generate data in near real time to evaluate rock behavior in roof strata and the onset of hazardous conditions as overburden s...
    Public Domain
  • Performance of Electronic Flow Rate Meters Used for Calibration of Air Sampling Pumps
    Performance of Electronic Flow Rate Meters Used for Calibration of Air Sampling Pumps
    MacIntosh DL ;
    Middendorf, Paul J.
    2001/07/01 | National Institute for Occupational Safety and Health (NIOSH)
    Electronic flow rate meters (EFRMs) have been used by industrial hygienists for more than 20 years and are useful because they reduce the time required to calibrate air sampling pumps. This study compared the variability of the traditional bubble burette meter with electronic flow meters and simultaneously compared several EFRMs under different cal ...
    Public Domain
  • An Evaluation of Industrial Ventilation Branch Screening Methods for Obstructions in Working Exhaust Systems
    An Evaluation of Industrial Ventilation Branch Screening Methods for Obstructions in Working Exhaust Systems
    Booth DW Sr. ;
    Guffey SE
    2001/07/01 | National Institute for Occupational Safety and Health (NIOSH)
    This research evaluated the effectiveness of screening methods in identifying obstructed branches in industrial ventilation systems. These methods were divided into two categories: pressure comparisons and pressure ratio comparisons. The first category contained techniques that compare measured static pressures with the corresponding design static ...
  • Health Hazard Evaluation Report HETA 9901132853 University of California Berkeley Berkeley California
    Health Hazard Evaluation Report: HETA #99–0113–2853: University of California, Berkeley, Berkeley, California
    Piacitelli, Gregory M. ;
    Sussell, Aaron L.
    2001/07/01 | Health Hazard Evaluation Reports (HHE)
    At the request of the University of California, Berkeley, the National Institute for Occupational Safety and Health (NIOSH) conducted a study of lead-based paint (LBP) exposures during exterior renovation work on campus buildings. Workers' personal airborne lead (PbA) exposures were assessed for eight renovation tasks during a three-day demonstrati ...
    Public Domain
  • Role of Intrinsic Airway Neurons in OzoneInduced Airway Hyperresponsiveness in Ferret Trachea
    Role of Intrinsic Airway Neurons in Ozone-Induced Airway Hyperresponsiveness in Ferret Trachea
    Dey RD ;
    Fedan, Jeffery S.
    2001/07/01 | National Institute for Occupational Safety and Health (NIOSH)
    Exposure to ozone (O(3)) enhances airway responsiveness, which is mediated partly by the release of substance P (SP) from airway neurons. In this study, the role of intrinsic airway neurons in O(3)-induced airway responses was examined. Ferrets were exposed to 2 ppm O(3) or air for 1 h. Reactivity of isolated tracheal smooth muscle to cholinergic a ...
    Public Domain
  • Fatigue and Endurance Limits During Intermittent Overhead Work
    Fatigue and Endurance Limits During Intermittent Overhead Work
    Clark L ;
    Kirst M
    2001/07/01 | National Institute for Occupational Safety and Health (NIOSH)
    Shoulder problems are prevalent in industrial work, particularly when tasks require the hands to be used at or above shoulder level. Although extensive research has been conducted on prolonged static exertions, and several guidelines for such efforts exist, there is insufficient information for ergonomic evaluation of tasks that are intermittent an ...
  • Hazard Control 31 Dust Protection for Bag Stackers
    Hazard Control 31: Dust Protection for Bag Stackers
    National Institute for Occupational Safety and Health
    2001/07/01 | NIOSH Numbered Publications
    Mineral processing plants in the United States and throughout the world process material that is finely ground and placed into bags for shipping to the consumer. These bags normally range from 50 to 100 pounds in weight. Once the material is placed in these bags, a bag stacker loads the bags onto pallets. A bag stacker is exposed to a lot of dust t ...
    Public Domain
  • Case Studies of Cable Bolts Using Instrumented King Wires
    Case Studies of Cable Bolts Using Instrumented King Wires
    Martin, Lewis A. ;
    Pakalnis, Rimas T.
    2001/07/01 | Mining Publications
    Instrumented cable bolts developed at the Spokane Research Laboratory of the National Institute for Occupational Safety and Health were used in conjunction with existing ground control to monitor rock mass loads at various field sites (FMC Granger, Getchell, Meikle, SSX, K-2, and Stillwater). Axial and shear loads were determined by strain gauges t ...
    Public Domain
  • Development of Stress Measurements and Instrument Placement Techniques for Longwall Coal
    Development of Stress Measurements and Instrument Placement Techniques for Longwall Coal
    Zahl, Eric G. ;
    Dunford, John P.
    2001/07/01 | Mining Publications
    Western coal mines are operating under increasingly challenging ground conditions. Researchers at the Spokane Research Laboratory of the National Institute for Occupational Safety and Health are cooperating with mines to evaluate how these conditions affect mine operating stability and related miner safety. A system was developed to monitor rock an ...
    Public Domain
  • NIOSH Alert Preventing Injuries and Deaths from Falls During Construction and Maintenance of Telecommunication Towers
    NIOSH Alert: Preventing Injuries and Deaths from Falls During Construction and Maintenance of Telecommunication Towers
    Casini, Virgil J. ;
    Castillo, Dawn N.
    2001/07/01 | NIOSH Numbered Publications
    The widespread use of wireless communication services has resulted in the construction of telecommunication towers to hold transmitting devices for cellular phones, personal communication services, and televisions and radio broadcast antennas. The Federal Communications Commission (FCC) estimates that at least 75, 000 telecommunication towers have ...
    Multi-Language Public Domain
  • Rock Damage Characterisation from Microseismic Monitoring
    Rock Damage Characterisation from Microseismic Monitoring
    Gale, Winton J. ;
    Heasley, Keith A.
    2001/07/01 | Mining Publications
    This paper outlines the concepts used to correlate rock failure with microseismic events and presents examples of microseismic monitoring together with associated computer modeling of the rock failure. This study is motivated by the need to develop improved ways to reduce ground control hazards in underground mining. Toward this end we present and ...
    Public Domain
  • Report of Investigations 9655 Geomechanics of Reinforced Cemented Backfill in an Underground Stope at the Lucky Friday Mine Mullan Idaho
    Report of Investigations 9655: Geomechanics of Reinforced Cemented Backfill in an Underground Stope at the Lucky Friday Mine, Mullan, Idaho
    Williams, Theodore J. ;
    Denton, David K.
    2001/07/01 | NIOSH Numbered Publications
    Because backfill has occasionally collapsed into an active working area, posing a hazard to miners, engineers from the Spokane Research Laboratory of the National Institute for Occupational Safety and Health and Hecla Mining Company installed instruments in a cemented, backfilled, stope-ramp intersection at Hecla's Lucky Friday Mine, Mullan, Idaho. ...
    Public Domain
  • A speical report public health hazards to lifeguards from sun exposure
    A speical report... public health hazards to lifeguards from sun exposure.
    Lushniak, Boris D. ;
    Rosenstock L
    2001/07/01 | National Institute for Occupational Safety and Health (NIOSH)
    In general, there is evidence that excessive ultraviolet radiation (UVR) exposure from sunlight, both in recreational and occupational settings, can have deleterious health effects, including increasing the risk of skin cancers. However, data specifically dealing with the risks of skin cancer in lifeguards are not available. Of concern is that: 1. ...
    Public Domain
  • Junior Fire Fighter Killed Responding to Call in His Privately Owned Vehicle POV Pennsylvania
    Junior Fire Fighter Killed Responding to Call in His Privately Owned Vehicle (POV) – Pennsylvania
    Romano, Nancy T. ;
    Braddee, Richard W.
    2001/06/29 | Fire Fighter Fatality Investigation and Prevention Program (FFFIPP)
    Death in the Line of Duty…a Summary of a NIOSH Fire Fighter Fatality InvestigationOn July 2, 2000, a 17-year-old male volunteer junior fire fighter (the victim), died after his privately owned vehicle (POV) collided with a farm tractor. At 1535 hours, the volunteer fire department was dispatched to a structure fire, and the victim responded in his ...
    Public Domain
  • Morbidity and Mortality Weekly Report MMWR Recommendations and Reports June 29 2001 Vol 50 No RR11
    Morbidity and Mortality Weekly Report (MMWR): Recommendations and Reports, June 29, 2001 / Vol. 50 / No. RR-11
    Alter, Miriam J. ;
    Alvarado-Ramy, Francisco
    2001/06/29 | Recommendations and Reports: Morbidity and Mortality Weekly Report (MMWR)
    This report updates and consolidates all previous U.S. Public Health Service recommendations for the management of health-care personnel (HCP) who have occupational exposure to blood and other body fluids that might contain hepatitis B virus (HBV), hepatitis C virus (HCV), or human immunodeficiency virus (HIV). Recommendations for HBV postexposure ...
    Superseded Public Domain
  • Estimation of Highest Task Silica Exposures
    Estimation of Highest Task Silica Exposures
    Grimsley LF
    2001/06/28 | Grant Final Reports
    More than one million workers in the United States are exposed to silica and approximately 100,000 will develop lung diseases. Despite efforts to decrease silica exposure in the workplace, overexposures and deaths from silicosis continue in certain operations and industries. According to the National Institute for Occupational Safety and Health (NI ...
  • Electrostatic Sampling of Airborne Microorganisms
    Electrostatic Sampling of Airborne Microorganisms
    Willeke K
    2001/06/26 | Grant Final Reports
    Each year millions of respiratory allergies and infections are caused by airborne microorganisms present in agricultural, industrial and indoor environments. The level of exposure indicated by bioaerosol samplers depends on the instrument used and the sensitivity of the microorganisms. In an effort to collect such microorganisms more gently, at low ...
  • Acceleration of Mammary Neoplasia in Aromatase Transgenic Mice by 712Dimethylbenzaanthracene
    Acceleration of Mammary Neoplasia in Aromatase Transgenic Mice by 7,12-Dimethylbenz[a]anthracene
    Keshava N ;
    Kirma N
    2001/06/26 | National Institute for Occupational Safety and Health (NIOSH)
    Our studies using the aromatase transgenic mice model have shown that early exposure of mammary epithelium to in situ estrogen as a result of overexpression of aromatase predispose mammary tissue to preneoplastic changes. Here, we hypothesize that the preneoplastic changes induced by mammary estrogen in aromatase transgenic females may be susceptib ...
    Supporting Files Public Domain
  • Research on the use of composite materials in ROPS
    Research on the use of composite materials in ROPS.
    Current, Richard ;
    Etherton J
    2001/06/24 | National Institute for Occupational Safety and Health (NIOSH)
    No Description Provided
    Public Domain
  • NonFatal AnimalRelated Farm Injuries to Youth in the United States 1998
    Non-Fatal Animal-Related Farm Injuries to Youth in the United States – 1998
    Adekoya, Nelson ;
    Hendricks, Kitty J.
    2001/06/24 | National Institute for Occupational Safety and Health (NIOSH)
    Objective: To provide data on the magnitude of animal-related farm injuries to youth in the United States. Data Source: A youth farm injury survey of 26,000 farm households conducted for the National Institute for Occupational Safety and Health (NIOSH) by the United States Department of Agriculture (USDA) in 1998. Subjects: Youth less than 20 years ...
    Public Domain
45321 - 45340 / 82972