The relationship between diurnal temperature range (DTR) and daily mortality from 2005 to 2020 is examined for seven large metropolitan areas in Virginia using distributed lag non-linear models that control for temperature and humidity. The relative risk of mortality increases for very high DTR, and there is a short lag effect of several days. High risk DTR days are rare, typically occurring less than 1% of the time at most locations. These days primarily occur in spring and are characterized by high pressure and low humidity that allow overnight temperatures to drop substantially. High DTR days are often associated with elevated respiratory and cardiovascular mortality and tend to impact the elderly. The similarity between the mortality response to high DTR and that of high temperatures alone, coupled with the lack of clear physiological underpinnings, challenges the notion that these responses are independent. The prevalent spring peak in dangerous DTR days suggests that lack of acclimatization to hot and humid conditions may impose strain on the cardiovascular and respiratory systems.
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http://dx.doi.org/10.1007/s00484-025-02850-6 | DOI Listing |
Int J Biometeorol
January 2025
Southeast Regional Climate Center, Department of Geography and Environment, University of North Carolina, Chapel Hill, NC, 27514, USA.
The relationship between diurnal temperature range (DTR) and daily mortality from 2005 to 2020 is examined for seven large metropolitan areas in Virginia using distributed lag non-linear models that control for temperature and humidity. The relative risk of mortality increases for very high DTR, and there is a short lag effect of several days. High risk DTR days are rare, typically occurring less than 1% of the time at most locations.
View Article and Find Full Text PDFRisk Manag Healthc Policy
January 2025
Department of Cardiology, The First Affiliated Hospital of Xinxiang Medical University, Weihui, 453100, People's Republic of China.
Purpose: The effect of the diurnal temperature range (DTR) on human health in diverse geographic areas and the potential confounding factors are not fully understood. Additionally, while a robust association has been reported between temperature and cardiomyopathy (CM), evidence of the impact of DTR is relatively limited. Here, we determined whether an association exists between DTR and CM hospitalisations in vulnerable populations.
View Article and Find Full Text PDFPhys Med Biol
January 2025
Physics of Molecular Imaging Systems, RWTH Aachen University, Forckenbeckstraße 55, Aachen, NRW, 52074, GERMANY.
Integrating time-of-flight (ToF) measurements in radiography and computed tomography (CT) enables an approach for scatter rejection in imaging systems that eliminates the need for anti-scatter grids, potentially increasing system sensitivity and image quality. However, present hardware dedicated to the time-correlated measurement of X-rays is limited to a small scale and low density. A switch to highly integrated electronics and detectors is needed to progress towards a medium-scale system capable of acquiring images, while offering a timing resolution below 300 ps FWHM to achieve scatter rejection comparable to current grids.
View Article and Find Full Text PDFInfect Prev Pract
March 2025
Department of Infectious Diseases, Hospital Universitario "Dr. José E. González" y Facultad de Medicina, Universidad Autónoma de Nuevo León, Mitras Centro, Monterrey, Nuevo León, CP 64460, México.
Background: Antimicrobial resistance and difficult-to-treat resistance (DTR) in ESKAPE pathogens ( and species) is a threat to human health. The aim of this study was to determine the prevalence of antimicrobial resistance and DTR rates in ESKAPE pathogens over six years in a third-level hospital from Monterrey, Mexico.
Methods: Antimicrobial susceptibility testing was determined by either disk diffusion or broth microdilution in strains from 2018 to 2023.
iScience
December 2024
School of Chemistry and Chemical Engineering, University of Surrey, GU2 7XH Guildford, UK.
Microplastics fibers shed from washing synthetic textiles are released directly into the waters and make up 35% of primary microplastics discharged to the aquatic environment. While filtration devices and regulations are in development, safe disposal methods remain absent. Herein, we investigate catalytic hydrothermal carbonization (HTC) as a means of integrating this waste (0.
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