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Showing 981 - 1000 of 83319 results
  • Impact of Vitamin D on Hyperoxic Acute Lung Injury in Neonatal Mice
    Impact of Vitamin D on Hyperoxic Acute Lung Injury in Neonatal Mice
    Alcorn JL ;
    Crocker CE
    2024/11/25 | National Institute for Occupational Safety and Health (NIOSH)
    Background: Prolonged exposure to hyperoxia can lead to hyperoxic acute lung injury (HALI) in preterm neonates. Vitamin D (VitD) stimulates lung maturation and acts as an anti-inflammatory agent. Our objective was to determine if VitD provides a dose-dependent protective effect against HALI by reducing inflammatory cytokine expression and improving ...
    Public Domain
  • Editorial Exposure Science and Occupational Health Insights from ISES 2022
    Editorial: Exposure Science and Occupational Health: Insights from ISES 2022
    Almeida-Silva M ;
    Curwin B
    2024/11/25 | National Institute for Occupational Safety and Health (NIOSH)
    The annual meeting of the International Society of Exposure Science - from exposure to human health: new developments and challenges in a changing environment - took place from 25 to 29 September 2022 in Lisbon, Portugal. The aim of the conference was to promote information sharing and facilitate discussion on exposure sciences and related fields i ...
    Public Domain
  • Efficacy of Powered Air Purifying Respirators (PAPRs) for Source Control of Simulated Respiratory Aerosols (Dataset)
    Blachere, Francoise M. ;
    Derk RC
    2024/11/22 | NIOSH Data | ZIP folder
    Health Effects Laboratory Divsion (HELD). Allergy and Clinical Immunology Branch (ACIB)
    Download the Dataset decsribed here from Data.cdc.gov at https://doi.org/10.26616/NIOSHRD-1096-2024-0.Background: Powered air purifying respirators (PAPRs) are a popular alternative to the use of filtering facepiece respirators by healthcare workers. Although PAPRs protect the wearer from aerosol particles, their ability to block infectious aerosol ...
    Dataset Public Domain
  • Field Emission from Cylindrical Graphene Cathodes Prepared by Chemical Vapor Deposition and Cold Rolling
    Field Emission from Cylindrical Graphene Cathodes Prepared by Chemical Vapor Deposition and Cold Rolling
    Back T ;
    Cahay M
    2024/11/21 | National Institute for Occupational Safety and Health (NIOSH)
    We report field emission (FE) properties of cold cathodes made by a scalable chemical vapor deposition synthesis of three-dimensional graphene (3DG) from a cast catalyst followed by cold rolling. This process leads to an increase in mechanical strength and electrical conductivity of the tested material. For a given distance between the tip of the c ...
  • Nitrogen Isotopes Reveal High NOx Emissions from Arid Agricultural Soils in the Salton Sea Air Basin
    Nitrogen Isotopes Reveal High NOx Emissions from Arid Agricultural Soils in the Salton Sea Air Basin
    Faloona IC ;
    Lieb HC
    2024/11/20 | National Institute for Occupational Safety and Health (NIOSH)
    Air quality management commonly aims to mitigate nitrogen oxide (NOx) emissions from combustion, reducing ozone (O3) and particulate matter (PM) pollution. Despite such ongoing efforts, regulations have recently proven ineffective in rural areas like the Salton Sea Air Basin of Southern California, which routinely violates O3 and PM air quality sta ...
  • Participation of Strong HBonding to Acidic Groups Contributes to the Intense Sorption of the Anionic Munition Nitrotriazolone NTO to the Carbon Filtrasorb 400
    Participation of Strong H-Bonding to Acidic Groups Contributes to the Intense Sorption of the Anionic Munition, Nitrotriazolone (NTO) to the Carbon, Filtrasorb 400
    Abdelraheem W ;
    Meng L
    2024/11/19 | National Institute for Occupational Safety and Health (NIOSH)
    5-Nitro-1,2-dihydro-3H-1,2,4-triazin-3-one ("nitrotriazolone," NTO) is an insensitive munition compound used in modern weaponry. It poses a potential threat to soil and water quality at relevant sites due to its physical properties that cause high mobility in the environment. NTO is polar and predominantly monoanionic (NTO-) at environmental pH (pK ...
    Public Domain
  • Effect of Sample Size on the Unconfined Compressive Strength of Cemented Mill Tailings
    Effect of Sample Size on the Unconfined Compressive Strength of Cemented Mill Tailings
    Bourgeois JP ;
    Emery TM
    2024/11/18 | Mining Publications
    To determine if the size of a cemented mill tailings sample affects its unconfined compressive strength (UCS), researchers with the National Institute for Occupational Safety and Health (NIOSH) conducted three series of UCS tests with cylindrical samples of cemented paste backfill (CPB), ranging in size from 0.5×1.0 inch (13×25 mm) to 6×12 inches ( ...
    Public Domain
  • Validation of Targets for Use in Evaluating Haul Truck Collision Warning and Avoidance System Detection Performance
    Validation of Targets for Use in Evaluating Haul Truck Collision Warning and Avoidance System Detection Performance
    Girman M ;
    Jobes, Christopher C.
    2024/11/17 | Mining Publications
    Surface mining haul trucks have been involved in 54 fatal accidents in the United States between 2005 and 2021. Collision warning and avoidance systems (CXS) could potentially alert drivers of hazards and prevent accidents from occurring. To ensure the efficacy of CXS, the object detection performance must be tested with a reliable detection target ...
    Public Domain
  • Enhancing Safety in Collaborative Workspaces Defining Attention and Avoidance Zones Using Path Planning with Mobile Robotic Systems
    Enhancing Safety in Collaborative Workspaces: Defining Attention and Avoidance Zones Using Path Planning with Mobile Robotic Systems
    Camargo HE ;
    Cheng MH
    2024/11/17 | National Institute for Occupational Safety and Health (NIOSH)
    Ensuring the safety of human workers who work alongside mobile robots is extremely important. This study defines and delineates attention zones and avoidance zones for human workers to include both visual and audible aspects. Attention zones aims to keep workers aware of potential hazards. Specifically, visual attention zones focus on field of view ...
    Public Domain
  • Oxygen Delivery System for ClosedCircuit Escape Respirators
    Oxygen Delivery System for Closed-Circuit Escape Respirators
    Cornman JK ;
    Fernando RD
    2024/11/17 | National Institute for Occupational Safety and Health (NIOSH)
    In the design of self-contained closed-circuit escape respirators (CCERs), using the closed-circuit principle where the breathing gas from the user is recirculated and reconditioned in a closed loop within the apparatus is the most efficient design and leads to a small size. This type of respirator is favored when it must be carried by the user at ...
    Public Domain
  • The Alarmin Interleukin33 Increases Vascular Tone via Extracellular Signal Regulated KinaseMediated Ca2 Sensitization and Endothelial Nitric Oxide Synthase Inhibition
    The Alarmin, Interleukin-33, Increases Vascular Tone via Extracellular Signal Regulated Kinase-Mediated Ca2+ Sensitization and Endothelial Nitric Oxide Synthase Inhibition
    Batchelor T ;
    Bowdridge E
    2024/11/15 | National Institute for Occupational Safety and Health (NIOSH)
    Alarmins are classified by their release from damaged or ruptured cells. Many alarmins have been found to increase vascular tone and oppose endothelium-dependent dilatation (EDD). Interleukin (IL)-33 plays a prominent role in lung injury and can be released during vascular injury and in chronic studies found to be cardioprotective. Our recent work ...
  • Estimating Rates of Change to Interpret Quantitative Wastewater Surveillance of Disease Trends
    Estimating Rates of Change to Interpret Quantitative Wastewater Surveillance of Disease Trends
    Blackwood AD ;
    Christensen A
    2024/11/15 | National Institute for Occupational Safety and Health (NIOSH)
    Background: Wastewater monitoring data can be used to estimate disease trends to inform public health responses. One commonly estimated metric is the rate of change in pathogen quantity, which typically correlates with clinical surveillance in retrospective analyses. However, the accuracy of rate of change estimation approaches has not previously b ...
  • Safety and Health for Home Care Aides in Healthcare and Social Assistance The Safe Home Care Intervention Study
    Safety and Health for Home Care Aides in Healthcare and Social Assistance: The Safe Home Care Intervention Study
    Quinn, Margaret M.
    2024/11/14 | Grant Final Reports
    Home care (HC) workers provide essential health and personal care services that enable people to live at home rather than receive care in a nursing home or other facility. Major social, economic, and technological trends are driving the need for HC and its largest workforce, HC aides. There is a HC aide shortage and employers face challenges to rec ...
  • Implementing a Lifestyle Medicine Program via Telehealth to Optimize GERD Management in WTC First Responders
    Implementing a Lifestyle Medicine Program via Telehealth to Optimize GERD Management in WTC First Responders
    Meyer, J. D. ;
    Senay E
    2024/11/14 | Grant Final Reports
    Overall, we have demonstrated, via this pilot/program developmental R21 award, that a Lifestyle Medicine program targeted at the reduction of GERD symptoms and reduction of medication use, can be effectively developed and used to intervene on lifestyle factors that may reduce GERD in a particularly vulnerable population with a high prevalence of GE ...
  • NextGeneration CustomFit Reusable Respiratory Protective Device with Continuous Fit Monitoring Part III 3D Printing of Prototypes and Evaluation
    Next-Generation Custom-Fit Reusable Respiratory Protective Device with Continuous Fit Monitoring – Part III: 3D Printing of Prototypes and Evaluation
    Bergman, Michael ;
    Jayaraman S
    2024/11/13 | National Institute for Occupational Safety and Health (NIOSH)
    Some respiratory protective devices (RPDs) such as filtering facepiece respirators (FFRs) are manufactured in discrete sizes, with some models being limited in accommodating the fit of some gender and race combinations. This study presents the development of a custom-fit RPD which conforms to a user's facial features and flexes and moves with facia ...
    Public Domain
  • Pediatric Nurses Fatigue Descriptions in Occupational Injury Reports A Descriptive Qualitative Study
    Pediatric Nurses’ Fatigue Descriptions in Occupational Injury Reports: A Descriptive Qualitative Study
    Daraiseh NM ;
    Hittle BM
    2024/11/08 | National Institute for Occupational Safety and Health (NIOSH)
    Background: Despite the high risks associated with occupational fatigue in healthcare, few organizations require nurses to screen and report fatigue symptoms. As a result, little is known about if and how nurses would report fatigue while on the job. Objective: To determine if hospital-based pediatric nurses reported fatigue as part of an active in ...
  • Strategies to reduce fall severity after a perturbation during ladder climbing
    Strategies to reduce fall severity after a perturbation during ladder climbing.
    Beschorner KE ;
    Pliner EM
    2024/11/07 | National Institute for Occupational Safety and Health (NIOSH)
    Background: Falls from ladders remain a significant cause of workplace injuries. Purpose: Collective biomechanical responses associated with minimizing fall severity were investigated. Methods: Secondary analysis. In a laboratory, a perturbation of a ladder rung (simulating a misstep) was applied during ladder climbing of healthy adults. Hand and f ...
  • Use of Biomarkers of Metals to Improve Prediction Performance of Cardiovascular Disease Mortality
    Use of Biomarkers of Metals to Improve Prediction Performance of Cardiovascular Disease Mortality
    Bakulski KM ;
    Fansler SD
    2024/11/07 | National Institute for Occupational Safety and Health (NIOSH)
    Background: Whether including additional environmental risk factors improves cardiovascular disease (CVD) prediction is unclear. We attempted to improve CVD mortality prediction performance beyond traditional CVD risk factors by additionally using metals measured in the urine and blood and with statistical machine learning methods. Methods: Our sam ...
  • MUC5B Promoter Variant and Survival in Rheumatoid ArthritisAssociated Interstitial Lung Disease
    MUC5B Promoter Variant and Survival in Rheumatoid Arthritis-Associated Interstitial Lung Disease
    Ascherman DP ;
    Baker JF
    2024/11/06 | National Institute for Occupational Safety and Health (NIOSH)
    Objective: The objective of this study was to investigate the association between the MUC5B rs35705950 promoter variant and survival in RA-associated interstitial lung disease (RA-ILD). Methods: We studied participants in the Veteran Affairs Rheumatoid Arthritis (VARA) registry with validated ILD diagnoses. Participants were followed until death or ...
  • A HighThroughput TurbulentMixing Condensation Aerosol Concentrator for Direct Aerosol Collection as a Liquid Suspension
    A High-Throughput, Turbulent-Mixing, Condensation Aerosol Concentrator for Direct Aerosol Collection as a Liquid Suspension
    Dionysiou DD ;
    Kulkarni P
    2024/11/05 | National Institute for Occupational Safety and Health (NIOSH)
    Trace measurement of aerosol chemical composition in workplace atmospheres requires the development of high-throughput aerosol collectors that are compact, hand-portable, and can be operated using personal pumps. We describe the design and characterization of a compact, high flow, Turbulent-mixing Condensation Aerosol-in-Liquid Concentrator (TCALC) ...
    Public Domain
981 - 1000 / 83319
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