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A Moving Target: Firearm Deaths, Mental Health, and the Role of Physicians.
Curr Psychiatry Rep
December 2024
Atrium Health/Wake Forest School of Medicine, Wake Forest University-Charlotte Region, Charlotte, NC, USA.
Purpose Of Review: This review aims to provide an updated overview of trends in firearm- related deaths, the mental health impact on communities, and clinical and legislative interventions. We examine existing interventions and highlight lesser-known yet impactful strategies, such as incorporating appropriate training in medical education on firearm safety. Additionally, we explore the broader impacts of firearm violence on community mental health and address the disputed topic of whether mental illness is a driving factor behind mass shootings.
View Article and Find Full Text PDFMachine learning-based optimization of photogrammetric JRC accuracy.
Sci Rep
November 2024
North China Institute of Science and Technology, Langfang, 065201, People's Republic of China.
To improve the accuracy of photogrammetric joint roughness coefficient (JRC) estimation, this study proposes two optimization models based on ground sample distance (GSD), point density, and the root mean square error (RMSE) of checkpoints. First, an algorithm that automatically generates spatial positions for equipment based on the convergence strategy was developed, using principles of Structure from Motion and Multi-View Stereo (SfM-MVS) and the shooting parameter selection algorithm (SPSA). Second, a portable positioning plate containing ground control points and checkpoints was designed based on optical principles, and a moving camera capture strategy guided by SPSA was proposed.
View Article and Find Full Text PDFGrazing-sliding bifurcation in a dry-friction oscillator on a moving belt under periodic excitation.
Chaos
October 2024
Department of Mathematics, Sichuan University, Chengdu, Sichuan 610064, China.
In this paper, we consider the grazing-sliding bifurcations in a dry-friction oscillator on a moving belt under periodic excitation. The system is a nonlinear piecewise smooth system defined in two zones whose analytical expressions of the solutions are not available. Thus, we obtain conditions of the existence of grazing-sliding orbits numerically by the shooting method.
View Article and Find Full Text PDFPublic Mass Shootings: Counterfactual Trend Analysis of the Federal Assault Weapons Ban.
JMIR Public Health Surveill
September 2024
Buehler Center for Health Policy & Economics, Feinberg School of Medicine, Northwestern University, 9-933 Rubloff Building, 420 E Superior St, Chicago, IL, 60611, United States, 1 312-503-4559.
Background: Assault weapon and large-capacity magazine bans are potential tools for policy makers to prevent public mass shootings. However, the efficacy of these bans is a continual source of debate. In an earlier study, we estimated the impact of the Federal Assault Weapons Ban (FAWB) on the number of public mass shooting events in the United States.
View Article and Find Full Text PDFAnalyzing Fatal Police Shootings: The Roles of Social Vulnerability, Race, and Place in the U.S.
Am J Prev Med
January 2025
Department of Health Policy and Management, Johns Hopkins Bloomberg School of Public Health.
Introduction: Social vulnerability, race, and place are three important predictors of fatal police shootings. This research offers the first assessment of these factors at the zip code level.
Methods: The 2015-2022 Mapping Police Violence and Washington Post Fatal Force Data (2015-2022) were used and combined with the American Community Survey (2015-2022).
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