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Use of nicotine vaping products during an attempt to quit smoking by Canadian adults who smoke or recently quit: findings from the 2022 Canada International Tobacco Control Four Country Smoking and Vaping Survey.
Health Promot Chronic Dis Prev Can
January 2025
Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston, SC, USA.
An analysis of 1771 Canadian adults who smoke or used to smoke cigarettes was conducted using data from the 2022 International Tobacco Control Four Country Smoking and Vaping Survey. Using weighted data, we estimated the prevalence of Canadian adults who tried to quit smoking between 2020 and 2022, and the use of a nicotine vaping product (NVP) and the flavours and devices used most often at their most recent quit attempt. Overall, 36.
View Article and Find Full Text PDFEnhanced detection of measurement anomalies in cartridge cases using 3D gray-level co-occurrence matrix.
Forensic Sci Int
January 2025
Department of Forensic Science and Technology, Sichuan Police College, No. 186, Longtouguan Road, Jiangyang District, Luzhou 646000, China; Sichuan Provincial Key Lab of Intelligent Policing, No. 186, Longtouguan Road, Jiangyang District, Luzhou 646000, China. Electronic address:
The firing pin impression left on the base of a cartridge case is a critical analytical feature in forensic science. To address the limitations of traditional manual trace analysis and mitigate the risk of secondary damage to physical evidence, we employ a line laser displacement sensor to capture and analyze three-dimensional (3D) traces of fired cartridge cases. However, when using laser displacement sensors to collect traces from metal cartridge cases, the high curvature and reflectivity of the metal surface can cause specular reflections, potentially leading to measurement anomalies in the firing pin impressions.
View Article and Find Full Text PDFIsolation and Identification of Mercury-Dissolved Organic Matter Complexes in Mercury-Humic Acid Suspensions.
Rapid Commun Mass Spectrom
April 2025
Department of Civil and Environmental Engineering, Syracuse University, Syracuse, New York, USA.
Rationale: The complexation with dissolved organic matter (DOM) is a pivotal factor influencing transformations, transport, and bioavailability of mercury (Hg) in aquatic environments. However, identifying these complexes poses a significant challenge because of their low concentrations and the presence of coexisting ions.
Methods: In this study, mercury-dissolved organic matter (Hg-DOM) complexes were isolated through solid-phase extraction (SPE) from Hg-humic acid suspensions, and complexes were putatively identified using ultrahigh resolution Fourier transform ion cyclotron resonance mass spectrometry (FTICR-MS).
Analysis Method of 131I Activity in Carbon Cartridge and Internal Dose Assessment for Nuclear Medicine Workers.
Health Phys
January 2025
National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Beijing, 100088, China.
Inhalation of 131I is the main route for internal doses to nuclear medicine workers. This study aimed to establish a simple analysis method for determining 131I activity in carbon cartridges, explore the activity concentration of 131I in nuclear medicine departments, and evaluate the internal dose of workers. A total of 21 nuclear medicine departments in the hospital conducted air sampling using a high-volume air sampler equipped with carbon cartridges and glass fiber filters to collect gaseous 131I and aerosol 131I, respectively.
View Article and Find Full Text PDFSimultaneous radionuclide determination using PSresin: 2in2 and 2in1 tandem configuration.
Anal Chim Acta
February 2025
Departament d'Enginyeria Química i Química Analítica, Universitat de Barcelona, Marti i Franqués, 1-11, ES-08028, Barcelona, Spain; Serra-Húnter Programme, Generalitat de Catalunya, Barcelona, Spain; Institut de Recerca de l'Aigua, University of Barcelona, Spain. Electronic address:
Background: Analyzing mixtures of radionuclides is a complex task. Two situations are the mixtures of Sr with Sr and Sr with plutonium isotopes. The challenge arises in emergency scenarios resulting from accidents where the activity of Sr is over 20 times higher than that of Sr, complicating its quantification and requiring delayed measurements.
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