Case: Bean bag projectiles (BBPs) are less lethal munition composed of a cloth bag filled with lead pellets and marking powder housed in a plastic casing fired from a 12-gauge shot gun. Two patients sustained penetrating BBP injuries that resulted in open fractures and retained BBP. Patient clothing and all BBP components were found deep in the wounds with marking powder surrounding fracture edges. Both patients healed without infection.
Conclusion: Surgical exploration of penetrating BBP injuries is recommended to remove marking powder, fabric, plastic, and potentially other forms of contamination. Fracture stabilization should adhere to existing guidelines pertaining to open contaminated wound conditions.
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http://dx.doi.org/10.2106/JBJS.CC.24.00132 | DOI Listing |
Materials (Basel)
January 2025
Mechanical and Aerospace Engineering Department, Utah State University, Logan, UT 84322-4130, USA.
Laser powder bed fusion (LPBF) is an additive manufacturing process that has gained interest for its material fabrication due to multiple advantages, such as the ability to print parts with small feature sizes, good mechanical properties, reduced material waste, etc. However, variations in the key process parameters in LPBF may result in the instantiation of porosity defects and variation in build rate. Particularly, volumetric energy density (VED) is a variable that encapsulates a number of those parameters and represents the amount of energy input from the laser source to the feedstock.
View Article and Find Full Text PDFForensic Sci Int
January 2025
King's Forensics, Department of Analytical, Environmental and Forensic Sciences, King's College London, 150 Stamford Street, London SE1 9NH, UK. Electronic address:
Wildlife forensics is a relatively underexplored field of science. It provides forensic evidence to support legal investigations involving wildlife crime, such as the trafficking and poaching of animals and/or their goods. The consequences of poaching are not just limited to a decline in animal welfare and include the spread of zoonotic disease, species, cultural and habitat loss, and injury of anti-poaching rangers.
View Article and Find Full Text PDFAnalyst
January 2025
Questrom School of Business, Boston University, Boston, MA, 02215, USA.
Latent fingerprints (LFPs) are invisible impressions that need to be developed before being used for criminal investigation; however, existing fingerprint visualization techniques face challenges, such as complex preparation and poor contrast. To advance practical fingerprint detection, green-emissive micron-sized curcumin/kaolin composites were synthesized a facile and cost-effective one-step physical cross-linking method, which exhibited unprecedented performance in developing diversified marks, including LFPs, knuckle prints, palm prints, and footprints, with clear three-level details on various substrates. Notably, the powders successfully developed LFPs that were aged for 30 days and even up to 100 days, meeting the stringent requirements for comprehensive forensic application.
View Article and Find Full Text PDFJ Forensic Sci
December 2024
Federal University of Rio de Janeiro, Institute of Biomedical Sciences, Rio de Janeiro, Rio de Janeiro, Brazil.
Postmortem identification through fingerprints often encounters significant challenges, particularly with damaged epidermal tissue, due to factors such as carbonization, putrefaction, mummification, or saponification. Traditional techniques frequently fall short in cases involving fragile skin, which complicates the collection of clear fingerprint impressions. This study presents and evaluates an adaptive modification of the transillumination technique, integrating it with moistened black volcano powder to enhance fingerprint recovery from compromised postmortem tissue.
View Article and Find Full Text PDFAdv Sci (Weinh)
December 2024
Singapore Centre for 3D Printing, School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore, 639798, Singapore.
This paper addresses the trade-off between sensitivity and sensing range in strain sensors, while introducing additional functionalities through an innovative 4D printing approach. The resulting ultraflexible sensor integrates carbon nanotubes/liquid metal hybrids and iron powders within an Ecoflex matrix. The optimization of this composition enables the creation of an uncured resin ideal for Direct Ink Writing (DIW) and a cured sensor with exceptional electromechanical, thermal, and magnetic performance.
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