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Showing 43461 - 43480 of 82803 results
  • Assessing Occupational Exposure via the OneWay Random Effects Model with Balanced Data
    Assessing Occupational Exposure via the One-Way Random Effects Model with Balanced Data
    Krishnamoorthy K ;
    Mathew T
    2002/09/01 | National Institute for Occupational Safety and Health (NIOSH)
    A one-way random effects model is considered for the log-transformed shift-long personal exposure measurements, where the random effect in the model represents an effect due to the worker. Following a previous approach, we address a hypothesis-testing problem involving the proportion of workers for whom the mean exposure exceeds the occupational ex ...
  • Wrist and Forearm Postures and Velocities in Repetitve Precision Tasks
    Wrist and Forearm Postures and Velocities in Repetitve Precision Tasks
    Drury C ;
    Paquet V
    2002/09/01 | National Institute for Occupational Safety and Health (NIOSH)
    Precision work has been shown to impose physical demands over and above similar work that does not require precision. but few studies have evaluated the effects of such work on the musculoskeletal stress of the upper extremities. Repetitive tasks that involved moving between a Home disk and a precision target were studied. The movements from the Ho ...
  • TestRetest Reliability of a SelfAdministered Musculoskeletal Symptoms and Job Factors Questionnaire Used in Ergonomics Research
    Test-Retest Reliability of a Self-Administered Musculoskeletal Symptoms and Job Factors Questionnaire Used in Ergonomics Research
    Anton DC ;
    Cook TM
    2002/09/01 | National Institute for Occupational Safety and Health (NIOSH)
    The purpose of this study was to investigate the test-retest reliability of questionnaire items related to musculoskeletal symptoms and the reliability of specific job factors. The type of questionnaire items described in the present study have been used by several investigators to assess symptoms of musculoskeletal disorders and problematic job fa ...
  • Concentration and Size Distribution of Ultrafine Particles near a Major Highway
    Concentration and Size Distribution of Ultrafine Particles near a Major Highway
    Hinds WC ;
    Kim S
    2002/09/01 | National Institute for Occupational Safety and Health (NIOSH)
    Motor vehicle emissions usually constitute the most significant source of ultrafine particles (diameter <0.1 um) in an urban environment, yet little is known about the concentration and size distribution of ultrafine particles in the vicinity of major highways. In the present study, particle number concentration and size distribution in the size ra ...
  • Diesel Particulate Matter Exposure to Railroad Train Crews
    Diesel Particulate Matter Exposure to Railroad Train Crews
    Grogan JL ;
    Liukonen LR
    2002/09/01 | National Institute for Occupational Safety and Health (NIOSH)
    Exposure assessments were conducted aboard diesel locomotives. Results were evaluated to determine variables that affect exposure to DPM (diesel particulate matter) and to assess use of EC (elemental carbon) and OC (organic carbon) as surrogates for DPM. National Institute for Occupational Safety and Health Method 5040 was used for collection and a ...
  • Using a Filter Bypass Leakage Test for Aerosol Sampling Cassettes
    Using a Filter Bypass Leakage Test for Aerosol Sampling Cassettes
    Baron, Paul A.
    2002/09/01 | National Institute for Occupational Safety and Health (NIOSH)
    The plastic two- and three-piece cassettes commonly used for collection of personal samples of airborne dust may be prone to bypass leakage if the cassettes are not properly assembled. The filter is clamped into place in the cassette by pressing together the base and the ring or cap of the cassette. If pressure is insufficient, or the base and mati ...
    Public Domain
  • Induction of Ferritin and Lipid Peroxidation by Coal Samples with Different Prevalence of Coal Workers Pneumoconiosis Role of Iron in the Coals
    Induction of Ferritin and Lipid Peroxidation by Coal Samples with Different Prevalence of Coal Workers’ Pneumoconiosis: Role of Iron in the Coals
    Huang X ;
    Zhang Q
    2002/09/01 | National Institute for Occupational Safety and Health (NIOSH)
    BACKGROUND: Differences in levels of bioavailable iron (BAI) in coal may be responsible for the observed regional differences in the prevalence and severity of coal workers' pneumoconiosis (CWP). METHODS: Twenty-nine coal samples from three coal mine regions were tested in human lung epithelial Type II A549 cells. They were from Utah (UT), West Vir ...
  • Standardization of Clinical Cholinesterase Measurements
    Standardization of Clinical Cholinesterase Measurements
    Henderson JD ;
    O'Malley, Michael A.
    2002/09/01 | National Institute for Occupational Safety and Health (NIOSH)
    Previous studies showed that commonly used kits for measuring cholinesterases were not optimal for determining acetylcholinesterase (AChE) activity. Clinical use of different kits and methodologies resulted in AChE levels being reported in different units and activities that were not reproducible among laboratories. Findings such as these led to a ...
  • Does Standing at Work During Pregnancy Result in Reduced Infant Birth Weight
    Does Standing at Work During Pregnancy Result in Reduced Infant Birth Weight?
    Chen C ;
    Chen D
    2002/09/01 | National Institute for Occupational Safety and Health (NIOSH)
    The purpose of this study was to investigate the association between infant birth weight and standing at work during pregnancy. A total of 1222 pregnant women employed in a large petrochemical corporation in Beijing, China, were enrolled in the study, after receiving permission from the government to have a child. The subjects were followed up from ...
  • Postural Stability During Task Performance on Elevated andor Inclined Surfaces
    Postural Stability During Task Performance on Elevated and/or Inclined Surfaces
    Bagchee A ;
    Bhattacharya, Amit
    2002/09/01 | National Institute for Occupational Safety and Health (NIOSH)
    The purpose of this study was to subjectively and objectively evaluate the postural stability of forty industrial workers while performing simulated industrial tasks on inclined and elevated surfaces under various combinations of environmental lighting and noise distraction conditions. The results suggest the following ordering for the effects of r ...
  • Improving the Health of Workers in Indoor Environments Priority Research Needs for a National Occupational Research Agenda
    Improving the Health of Workers in Indoor Environments: Priority Research Needs for a National Occupational Research Agenda
    Alexander D ;
    Cain WS
    2002/09/01 | National Institute for Occupational Safety and Health (NIOSH)
    Indoor nonindustrial work environments were designated a priority research area through the nationwide stakeholder process that created the National Occupational Research Agenda. A multidisciplinary research team used member consensus and quantitative estimates, with extensive external review, to develop a specific research agenda. The team outline ...
    Public Domain
  • Communicating the Same Message with Different Media An Example from Hearing Loss Prevention
    Communicating the Same Message with Different Media: An Example from Hearing Loss Prevention
    Byrne, David C. ;
    Kohler, Jeffrey L.
    2002/09/01 | Mining Publications
    Multiple versions of an educational message can reach a diverse population more effectively than a single version. For instance, some workers are trained in formal classrooms while others are self-taught. The National Institute for Occupational Safety and Health has developed multiple versions of a hearing loss simulator (an interactive software pa ...
    Public Domain
  • An Overview of the Evaluation Process for Mine Trainers
    An Overview of the Evaluation Process for Mine Trainers
    Mallett L ;
    Reinke D
    2002/09/01 | Mining Publications
    Interest in training evaluation in the mining industry was piqued with the promulgation of Title 30, Part 46 of the Code of Federal Regulations. Under Part 46.3, a training plan is considered to be approved if it contains certain information, including "The evaluation procedures used to determine the effectiveness of training." The present paper is ...
    Public Domain
  • Occupational Injury and Illness Surveillance Conceptual Filters Explain Underreporting
    Occupational Injury and Illness Surveillance: Conceptual Filters Explain Underreporting
    Azaroff LS ;
    Levenstein C
    2002/09/01 | National Institute for Occupational Safety and Health (NIOSH)
    Occupational health surveillance data are key to effective intervention. However, the US Bureau of Labor Statistics survey significantly underestimates the incidence of work-related injuries and illnesses. Researchers supplement these statistics with data from other systems not designed for surveillance. The authors apply the filter model of Webb e ...
  • Rocky Mountain Center for Occupational Environmental Health
    Rocky Mountain Center for Occupational & Environmental Health
    Moser R Jr.
    2002/09/01 | Grant Final Reports
    The Rocky Mountain Center for Occupational and Environmental Health (RMCOEH) was established in 1977 in the Department of Family and Preventive Medicine (DFPM), at the Uni versity of Utah School of Medicine. The Center was established to provide occupational and environmental health and safety (OEHS) graduate and continuing education programs, to c ...
  • How to Assess Possible Health Effects of Solvent Exposure The Perchloroethylene Pilot Project I
    How to Assess Possible Health Effects of Solvent Exposure: The Perchloroethylene Pilot Project I
    Butler MA ;
    Forrester CL
    2002/09/01 | National Institute for Occupational Safety and Health (NIOSH)
    Background: Epidemiological studies consistently show increased risk for cervical cancer among women dry-cleaning workers. Over 90% of an estimated 50,000 U.S. drycleaning shops currently use perchloroethylene (PCE) as their primary dry cleaning solvent. PCE is a recognized animal carcinogen classified by the International Agency for Research on Ca ...
    Public Domain
  • Risk Factors for Occupational Knee Related Disability Among Enlisted Women in the US Army
    Risk Factors for Occupational Knee Related Disability Among Enlisted Women in the US Army
    Amoroso PJ ;
    Bigelow C
    2002/09/01 | National Institute for Occupational Safety and Health (NIOSH)
    AIMS: To identify sociodemographic and occupational determinants of knee related disability discharge from the US Army among enlisted women, and to investigate effect modification. METHODS: A case-control study of 692 cases of knee related disability discharge and 2080 incidence density matched controls nested within the population of all 244 000 e ...
  • A Method for Estimation of Bias and Variability of Continuous Gas Monitor Data Application to Carbon Monoxide Monitor Accuracy
    A Method for Estimation of Bias and Variability of Continuous Gas Monitor Data: Application to Carbon Monoxide Monitor Accuracy
    Shulman, Stanley A. ;
    Smith JP
    2002/09/01 | National Institute for Occupational Safety and Health (NIOSH)
    A method is presented for the evaluation of the bias, variability, and accuracy of gas monitors. This method is based on using the parameters for the fitted response curves of the monitors. Thereby, variability between calibrations, between dates within each calibration period, and between different units can be evaluated at several different stand ...
    Public Domain
  • Releasing the Energy of Workers to Create a Safer Workplace The Value of Using Mentors to Enhance Safety Training
    Releasing the Energy of Workers to Create a Safer Workplace: The Value of Using Mentors to Enhance Safety Training
    Camm, Thomas W. ;
    Cullen, Elaine T.
    2002/09/01 | Mining Publications
    The mentor/learner model is a time-honored approach to teaching, including within the mining industry. Miners know when they see excellence and have a deep respect for experts in their field. By using expert miners as mentors to other, less-experienced miners, training programs can be developed that will have a legitimacy and credibility that reson ...
    Public Domain
  • Alteration of Pulmonary Cytochrome P450 System Effects of Asphalt Fume Condensate Exposure
    Alteration of Pulmonary Cytochrome P-450 System: Effects of Asphalt Fume Condensate Exposure
    Barger MW ;
    Castranova, Vincent
    2002/09/01 | National Institute for Occupational Safety and Health (NIOSH)
    Exposure to asphalt fumes is a health concern due to the presence of polycyclic aromatic compounds (PACs) in asphalt. Bioactivation of many PACs requires metabolism by the cytochrome P-450 (P-450) system. The objective of this study was to evaluate the effects of exposure of rats to asphalt fume condensate (AFC), collected at the top of a paving as ...
    Public Domain
43461 - 43480 / 82803