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| http://dx.doi.org/10.2105/AJPH.2013.301340 | DOI Listing |
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Occupational exposures and coronary heart disease in the Hamburg City Health Study (HCHS) - a cross-sectional study.
BMC Public Health
January 2025
Institute for Occupational and Maritime Medicine (ZfAM), University Medical Center Hamburg-Eppendorf (UKE), Hamburg, Germany.
Background: Coronary heart disease (CHD) is the leading cause of death among adults in Germany. There is evidence that occupational exposure to particulate matter, noise, psychosocial stressors, shift work and high physical workload are associated with CHD. The aim of this study is to identify occupations that are associated with CHD and to elaborate on occupational exposures associated with CHD by using the job exposure matrix (JEM) BAuA-JEM ETB 2018 in a German study population.
View Article and Find Full Text PDFDevelopment of GaN-Based, 6.6 kW, 450 V, Bi-Directional On-Board Charger with Integrated 1 kW, 12 V Auxiliary DC-DC Converter with High Power Density.
Micromachines (Basel)
December 2024
Department of Electrical, Electronic, and Information Engineering "Guglielmo Marconi", University of Bologna, 40136 Bologna, Italy.
Automotive-grade GaN power switches have recently been made available in the market from a growing number of semiconductor suppliers. The exploitation of this technology enables the development of very efficient power converters operating at much higher switching frequencies with respect to components implemented with silicon power devices. Thus, a new generation of automotive power components with an increased power density is expected to replace silicon-based products in the development of higher-performance electric and hybrid vehicles.
View Article and Find Full Text PDFTinnitus prevalence and associations with leisure noise exposure among Canadians, aged 6 to 79 years.
Int J Audiol
January 2025
Environmental Health Science and Research Bureau, Health Canada, Ottawa, Canada.
Objective: To examine the association between individual, cumulative leisure noise exposure (CLNE), acceptable yearly exposure (AYE) and tinnitus among a nationally representative sample of Canadians.
Design: In-person household questionnaires were used to evaluate leisure noise exposure across age, sex, household income and tinnitus: ever experienced, previous year, frequent, bothersome. High (≥85 dBA, LEX), low (<85 dBA, LEX) CLNE and AYEs were defined according to occupational limits.
Practical, low-cost integrity testing of diesel particle filters using remote sensing measurement at the campus entrance gate.
Sci Total Environ
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ASEM (Czech Association of Emissions Technicians), Boleslavská 902, 293 06 Kosmonosy, Czech Republic.
This work investigates the detection of defunct or absent diesel particle filters by drive-through remote sensing measurement at the Czech University of Life Sciences main vehicular entrance gate. An exhaust sample was collected by a line attached to the road surface in the center of the travel lane. A non-volatile particle number (nvPN) counter and electric mobility particle size classifier were used to measure particle number concentrations, and an FTIR analyzer was used to measure CO, CO, and NO concentrations.
View Article and Find Full Text PDFEstimating lives saved and serious injuries reduced by bicycle helmet use in Colorado, 2006-2014.
Int J Inj Contr Saf Promot
December 2024
Department of Civil Engineering, University of Colorado Denver, Denver, CO, USA.
Using the methodology developed by the National Highway Traffic Safety Administration (NHTSA) for motorcyclists, this paper estimates bicycle helmet effectiveness factors (HEFs), defined as the percentage greater chance that a helmeted bicyclist will avoid a fatality or serious injury relative to a non-wearer. We analyse reported motor vehicle-bicycle collisions in Colorado between 2006 and 2014. We conclude that NHTSA's motorcycle HEF methodology did not provide reasonable results given underreporting of low-severity collisions of helmeted bicyclists.
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