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Showing 2241 - 2260 of 83631 results
  • Evaluating the Accuracy of Bonded Block Models for Prediction of Rockmass Analog Mechanical Behavior
    Evaluating the Accuracy of Bonded Block Models for Prediction of Rockmass Analog Mechanical Behavior
    Sinha S ;
    Walton G
    2024/01/01 | National Institute for Occupational Safety and Health (NIOSH)
    Large-scale rock formations, referred to as "rockmasses", consist of intact rock separated by pre-existing discontinuities (i.e., joints). The mechanical behavior of rockmasses is difficult to directly test in the laboratory due to the required specimen scale. Instead, Synthetic Rockmass Modeling (SRM) is often used to simulate field-scale rockmass ...
    Peer Reviewed
  • Potent Lung Tumor Promotion by Inhaled MWCNT
    Potent Lung Tumor Promotion by Inhaled MWCNT
    Hubbs A ;
    Kashon M
    2024/01/01 | National Institute for Occupational Safety and Health (NIOSH)
    In the lung, carcinogenesis is a multi-stage process that includes initiation by a genotoxic agent, promotion that expands the population of cells with damaged DNA to form a tumor, and progression from benign to malignant neoplasms. We have previously shown that Mitsui-7, a long and rigid multi-walled carbon nanotube (MWCNT), promotes pulmonary car ...
    Public Domain Peer Reviewed
  • The Association of Air Pollution Exposure with Glucose and Lipid Levels The Role of an Extreme Air Pollution Event Alongside 2 Decades of Moderate Exposure
    The Association of Air Pollution Exposure with Glucose and Lipid Levels: The Role of an Extreme Air Pollution Event Alongside 2 Decades of Moderate Exposure
    Amini H ;
    Colicino E
    2024/01/01 | National Institute for Occupational Safety and Health (NIOSH)
    Extreme air pollution events and moderate exposure to fine particulate matter (PM2.5) are associated with increased cardiometabolic risk. The World Trade Center (WTC) Health Program general responder cohort includes responders to the WTC disaster. We investigated whether their exposure to this extreme air pollution event (2001) was associated with ...
    Peer Reviewed
  • RealWorld Effectiveness of Portable Air Cleaners in Reducing Home Particulate Matter Concentrations
    Real-World Effectiveness of Portable Air Cleaners in Reducing Home Particulate Matter Concentrations
    Alimokhtari S ;
    Black KG
    2024/01/01 | National Institute for Occupational Safety and Health (NIOSH)
    Portable air cleaners (PACs) equipped with HEPA filters are gaining attention as cost-effective means of decreasing indoor particulate matter (PM) air pollutants and airborne viruses. However, the performance of PACs in naturalistic settings and spaces beyond the room containing the PAC is not well characterized. We conducted a single-blinded rando ...
    Peer Reviewed
  • Perceived Benefits and Barriers to Implementing Occupational Health Recommendations Among ImmigrantOwned Nail Salons in the Greater Philadelphia Region
    Perceived Benefits and Barriers to Implementing Occupational Health Recommendations Among Immigrant-Owned Nail Salons in the Greater Philadelphia Region
    Carroll-Scott A ;
    Freeland C
    2024/01/01 | National Institute for Occupational Safety and Health (NIOSH)
    Introduction. Immigrant nail salon owners and employees face multiple barriers to accessing occupational health training and services. We formed an academic-community-based organization-business owner partnership-unique in that all partners were culturally congruent-to develop a pilot intervention program for the nail salon community. Methods. Eigh ...
    Peer Reviewed
  • MicroRNA1 Deficiency Is a Primary Etiological Factor Disrupting Cardiac Contractility and Electrophysiological Homeostasis
    MicroRNA-1 Deficiency Is a Primary Etiological Factor Disrupting Cardiac Contractility and Electrophysiological Homeostasis
    Cavus O ;
    Deschênes I
    2024/01/01 | National Institute for Occupational Safety and Health (NIOSH)
    BACKGROUND: MicroRNA-1 (miR1), encoded by the genes miR1-1 and miR1-2, is the most abundant microRNA in the heart and plays a critical role in heart development and physiology. Dysregulation of miR1 has been associated with various heart diseases, where a significant reduction (>75%) in miR1 expression has been observed in patient hearts with atria ...
    Peer Reviewed
  • 3D Numerical Simulation for Thermal Protection of Phase Change MaterialIntegrated Firefighters Turnout Gear
    3D Numerical Simulation for Thermal Protection of Phase Change Material-Integrated Firefighters’ Turnout Gear
    Xu, Susan S. ;
    Pollard, Jonisha P.
    2024/01/01 | 15th International Conference on Applied Human Factors and Ergonomics (AHFE) and the Affiliated Conferences, July 24-27, 2024, Nice, France. Orlando, FL: Applied Human Factors and Ergonomics (AHFE) International, 2024 Jul; 131:133-141 | National Institute for Occupational Safety and Health (NIOSH)
    This work aims to investigate and develop a novel phase change material (PCM)-integrated firefighters' turnout gear technology that would significantly enhance the thermal protection of firefighters' bodies from thermal burn injuries under high-heat conditions (such as in fire scenes). This work established a 3D human thermal simulation to explore ...
    Supporting Files
  • Physical Activity and HighSensitivity CReactive Protein in Pregnancy Does It Matter During Leisure or Work
    Physical Activity and High-Sensitivity C-Reactive Protein in Pregnancy: Does It Matter During Leisure or Work?
    Birukov A ;
    Chen L
    2024/01/01 | National Institute for Occupational Safety and Health (NIOSH)
    Introduction: Physical activity (PA), regardless of domain, is recommended for pregnant individuals in clinical guidelines, but limited evidence is available for work-related PA. This study aimed to examine the associations of occupational (OPA) and leisure-time PA (LTPA) with plasma high-sensitivity C-reactive protein (hs-CRP), a risk marker for a ...
    Peer Reviewed
  • Fundamentals of LowCost Aerosol Sensor Design and Operation
    Fundamentals of Low-Cost Aerosol Sensor Design and Operation
    Arnott WP ;
    Dhaniyala S
    2024/01/01 | National Institute for Occupational Safety and Health (NIOSH)
    Most evaluations of low-cost aerosol sensors have focused on their measurement bias compared to regulatory monitors. Few evaluations have applied fundamental principles of aerosol science to increase our understanding of how such sensors work and could be improved. We examined the Plantower PMS5003 sensor's internal geometry, laser properties, phot ...
    Peer Reviewed
  • National Estimates of Home Care Workers Nonfatal Emergency DepartmentTreated Injuries United States 20152020
    National Estimates of Home Care Workers Nonfatal Emergency Department-Treated Injuries, United States 2015–2020
    Derk SJ ;
    Hartley D
    2024/01/01 | National Institute for Occupational Safety and Health (NIOSH)
    Objective: Home care workers (HCWs) are a critical resource contributing to the well-being of others. Presented are data on HCWs nonfatal emergency department (ED)-treated injuries. Methods: Nonfatal injuries among HCWs were extracted from the NEISS-Work data between 2015 and 2020. Results: Review of NEISS-Work data indicated 117,000 HCWs with nonf ...
    Public Domain Peer Reviewed
  • Key Findings from Research SETU A Training and DecisionMaking Tool to Improve Safety in Excavation and Trenching
    Key Findings from Research: SETU: A Training and Decision-Making Tool to Improve Safety in Excavation and Trenching
    CPWR--The Center for Construction Research and Training
    2024/01/01 | CPWR - Center for Construction Research and Training Publications
    The recent resurgence of trenching and excavation fatalities have emphasized that those activities pose some of the most serious hazards to construction workers. OSHA has long maintained that excavation-related incidents can be prevented, particularly by following its standards for excavation and trenching: 1926 Subpart P. This study argues that al ...
  • A Decoupling Method to Compute Near Field and Far Field Exposure Concentrations
    A Decoupling Method to Compute Near Field and Far Field Exposure Concentrations
    Nicas M
    2024/01/01 | National Institute for Occupational Safety and Health (NIOSH)
    In the near field/far field (NF/FF) dispersion construct, the analytical solutions for the NF and FF concentration equations, respectively denoted CNF(t) and CFF(t) in mg/m3, are coupled in their mathematical derivation. Depending on the form of the contaminant emission rate function G(t) (mg/min), deriving CNF(t) and CFF(t) can range from being re ...
    Peer Reviewed
  • Perception of Whole Day Workload as a Mediator Between Activity Engagement and Stress in Workers with Type 1 Diabetes
    Perception of Whole Day Workload as a Mediator Between Activity Engagement and Stress in Workers with Type 1 Diabetes
    Gonzalez JS ;
    Hernandez R
    2024/01/01 | National Institute for Occupational Safety and Health (NIOSH)
    Associations between various forms of activity engagement (e.g. work, leisure) and the experience of stress in workers have been widely documented. The mechanisms underlying these effects, however, are not fully understood. Our goal was to investigate if perceived whole day workload accounted for the relationships between daily frequencies of activ ...
    Peer Reviewed
  • Systematic Review and MetaAnalysis of Psychological Distress and Acute Exacerbation of Chronic Obstructive Pulmonary Disease and Consequences
    Systematic Review and Meta-Analysis of Psychological Distress and Acute Exacerbation of Chronic Obstructive Pulmonary Disease and Consequences
    Heaton K ;
    Kham-ai P
    2024/01/01 | National Institute for Occupational Safety and Health (NIOSH)
    Background: People with chronic obstructive pulmonary disease (COPD) occasionally develop acute exacerbation of COPD-a potentially fatal condition. Psychological distress was associated with acute exacerbation of COPD. However, the evidence on the effect of psychological distress on acute exacerbation of COPD remains unclear. Objective: The aim of ...
    Peer Reviewed
  • A MetaAnalysis of EpigenomeWide Association Studies on Pregnancy Vitamin B12 Concentrations and Offspring DNA Methylation
    A Meta-Analysis of Epigenome-Wide Association Studies on Pregnancy Vitamin B12 Concentrations and Offspring DNA Methylation
    Bakulski KM ;
    Battram T
    2024/01/01 | National Institute for Occupational Safety and Health (NIOSH)
    Circulating vitamin B12 concentrations during pregnancy are associated with offspring health. Foetal DNA methylation changes could underlie these associations. Within the Pregnancy And Childhood Epigenetics Consortium, we meta-analysed epigenome-wide associations of circulating vitamin B12 concentrations in mothers during pregnancy (n=2,420) or cor ...
    Peer Reviewed
  • Training on the Rapid Removal of an Unresponsive Firefighter from Turnout Gear and SelfContained Breathing Apparatus
    Training on the Rapid Removal of an Unresponsive Firefighter from Turnout Gear and Self-Contained Breathing Apparatus
    National Institute for Occupational Safety and Health
    2024/01/01 | NIOSH Numbered Publications
    This Safety and Health Advisory educates workers in the fire service on the importance of rapidly removing an unresponsive firefighter from turnout gear and self-contained breathing apparatus and what techniques they can train on to accomplish this. [Description provided by NIOSH]
    Public Domain
  • Prospective Validity Assessment of a Friction Prediction Model Based on Tread Outsole Features of SlipResistant Shoes
    Prospective Validity Assessment of a Friction Prediction Model Based on Tread Outsole Features of Slip-Resistant Shoes
    Beschorner KE ;
    Deschler C
    2024/01/01 | National Institute for Occupational Safety and Health (NIOSH)
    Shoe outsole design strongly influences slip and fall risk. Certain tread features that can be readily measured have been shown to predict friction performance. This research aimed to replicate those findings and quantify their ability to predict slipping. Participants (n = 34) were exposed to a low friction oil-coated floor surface, while wearing ...
    Peer Reviewed
  • Molecular Activation of NLRP3 Inflammasome by Particles and Crystals A Continuing Challenge of Immunology and Toxicology
    Molecular Activation of NLRP3 Inflammasome by Particles and Crystals: A Continuing Challenge of Immunology and Toxicology
    Lim CS ;
    Ma Q
    2024/01/01 | National Institute for Occupational Safety and Health (NIOSH)
    Particles and crystals constitute a unique class of toxic agents that humans are constantly exposed to both endogenously and from the environment. Deposition of particulates in the body is associated with a range of diseases and toxicity. The mechanism by which particulates cause disease remains poorly understood due to the lack of mechanistic insi ...
    Public Domain Peer Reviewed
  • A Comparison of Devices for Race Day Characterization of North American Turfgrass Thoroughbred Racing Surfaces
    A Comparison of Devices for Race Day Characterization of North American Turfgrass Thoroughbred Racing Surfaces
    Barzee TJ ;
    Peterson MM
    2024/01/01 | National Institute for Occupational Safety and Health (NIOSH)
    Both pre-race meet and daily turf surface condition measurements are required by regulations adopted as part of the Horseracing Integrity and Safety Act (HISA). The Orono Biomechanical Surface Tester (OBST) is the primary device used for characterizing a racing surface and is used for the pre-meet inspections. Tools that are better suited for the d ...
    Peer Reviewed
  • Modified 3D Graphene for Sensing and Electrochemical Capacitor Applications
    Modified 3D Graphene for Sensing and Electrochemical Capacitor Applications
    Dangel GR ;
    Joseph KM
    2024/01/01 | National Institute for Occupational Safety and Health (NIOSH)
    Less defective, nitrogen-doped 3-dimensional graphene (N3DG) and defect-rich, nitrogen-doped 3-dimensional graphene (N3DG-D) were made by the thermal CVD (Chemical Vapor Deposition) process via varying the carbon precursors and synthesis temperature. These modified 3D graphene materials were compared with pristine 3-dimensional graphene (P3DG), whi ...
    Peer Reviewed
2241 - 2260 / 83631
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