The aim of this work is to present the method for sequential plutonium and americium activity determination in air filters using chromatographic radionuclide separation and alpha spectrometry measurement. The developed method may be employed for the purposes of workplace monitoring and as an indicator of the need of introducing the individual monitoring as well as a useful complementation of individual monitoring. Basic parameters describing the developed method such as values of chemical recoveries and minimum detectable activities for plutonium and americium isotopes have been determined. Applied counting efficiency was obtained using Monte Carlo calculation method.
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http://dx.doi.org/10.1007/s10967-016-5015-y | DOI Listing |
Background: Household air pollution is a major contributor to cardiovascular disease burden in women in Sub-Saharan Africa. However, little is known about exposures during pregnancy or the effect of clean cooking interventions on postpartum blood pressure trajectories.
Methods: The Ghana Randomized Air Pollution and Health Study (GRAPHS) randomized 1414 non-smoking women in the first and second trimesters to liquefied petroleum gas (LPG) or improved biomass stoves - vs control (traditional three-stone open fire).
Flow Turbul Combust
November 2024
Institut de Mécanique des Fluides de Toulouse, IMFT, CNRS, Université de Toulouse, Toulouse, France.
Improving mixing between two coaxial swirled jets is a subject of interest for the development of next generations of fuel injectors. This is particularly crucial for hydrogen injectors, where the separate introduction of fuel and oxidizer is preferred to mitigate the risk of flashback. Raman scattering is used to measure the mean compositions and to examine how mixing between fuel and air streams evolves along the axial direction in the near-field of the injector outlet.
View Article and Find Full Text PDFJ Community Hosp Intern Med Perspect
January 2025
Departments of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, USA.
Carbon black is the general term for a powdery commercial form of carbon. It can cause adverse health effects after inhalation, ingestion, or dermal contact. Exposure to carbon black particles can have adverse effects on the respiratory system; this exposure usually occurs when people inhale contaminated air in the workplace.
View Article and Find Full Text PDFTher Clin Risk Manag
January 2025
Department of Emergency, Xijing Hospital, Air Force Medical University, Xi'an, Shaanxi, 710032, People's Republic of China.
Background: Traumatic brain injury (TBI) is a major cause of morbidity and mortality, often requiring emergency department (ED) management. Integrated Nursing Interventions play a critical role in the care of TBI patients, but limited research has evaluated their efficacy in this setting. This study aims to assess the impact of Integrated Nursing Interventions on patient outcomes and complications in the ED.
View Article and Find Full Text PDFHeliyon
January 2025
Instituto Nacional do Semi-árido, Av. Francisco Lopes de Almeida, 4000, Serrotão, Campina Grande, 58434-700, Paraíba, Brazil.
Innovation in the drying process during the roasting of cashew nut almonds has the potential to significantly improve product quality. This study aimed to investigate the drying kinetics of the almond, comparing the experimental data with the mathematical models of Fick, Page, Cavalcanti Mata, and Henderson and Pabis. The research was conducted at the Laboratory of Physical Measurements and Drying of the Academic Unit of Food Engineering at the Federal University of Campina Grande.
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