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Forensic characterization of Brazilian gemstones: A pilot study employing raman spectroscopy and multivariate analysis.
Forensic Sci Int
January 2025
Departamento de Química. Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto. Universidade de São Paulo, Avenida Bandeirantes, 3900, Ribeirão Preto, São Paulo CEP 14040-901, Brazil; Instituto Nacional de Ciência e Tecnologia Ciências Forenses (INCT-Forense), Departamento de Química, Faculdade de Filosofia Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP 14040-901, Brasil; Programa de Cooperação Acadêmica - Segurança Pública e Ciências Forenses (PROCAD-SPCF), Departamento de Química, Faculdade de Filosofia Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP 14040-901, Brasil. Electronic address:
Forensic gemstone analysis faces many challenges. One of the most critical aspects of gemological research is the classification of a gemstone. It is necessary to understand the mineral species, purity, origin, and identification of treatments to identify and classify a gem correctly, as well as assign a monetary value to it.
View Article and Find Full Text PDFValidation of a Portable Ionized Calcium Detection Device and Changes in the Ionized-to-Total-Calcium Ratio in the Blood of Postpartum Holstein Cows.
Animals (Basel)
January 2025
College of Veterinary Medicine, China Agricultural University, Beijing 100193, China.
The calcium requirements of dairy cows increase dramatically soon after calving, and many cows have subclinical hypocalcemia, adversely affecting health and performance. Traditional laboratory tests for calcium are complex and not easily adapted to rapid point-of-care applications. The objectives were to evaluate a portable iCa testing device, Horiba LAQUAtwin Ca-11C, for measuring ionized calcium (iCa) in the whole blood of dairy cows and to investigate the iCa-to-total-calcium (tCa) ratio in blood collected from dairy cows within 9 days after calving.
View Article and Find Full Text PDFPrevalence of complications and comorbidities associated with obesity: a health insurance claims analysis.
BMC Public Health
January 2025
Eli Lilly and Company, Indianapolis, IN, 46285, USA.
Background: Despite the substantial burden of obesity in the United States (US), data on the comprehensive range of comorbidities in different age groups is limited. This study assessed the prevalence of various comorbidities among people diagnosed with obesity (as per ICD-10 diagnosis code) across age cohorts and compared how they differ from people without obesity.
Methods: This cross-sectional study analyzed individuals from all four regions (Midwest, Northeast, South, and West) of the US who had continuous insurance coverage from 2018 to 2020, using a large health insurance claims database (Merative™ MarketScan).
A miniaturized RPA-CRISPR/Cas12a-based nucleic acid diagnostic platform for rapid and simple self-testing of SARS-CoV-2.
Anal Chim Acta
February 2025
State Key Laboratory for Manufacturing Systems Engineering, School of Instrument Science and Technology, Xi'an Jiaotong University, Xi'an, 710054, China.
Nucleic acid testing is the most effective detection method currently available for the diagnosis of respiratory infectious diseases. However, the conventional real-time fluorescent quantitative PCR technique, which is regarded as the gold standard method for nucleic acid detection, presents significant challenges for implementation in home self-testing and popularization in underdeveloped regions due to its rigorous experimental standards. It is therefore clear that an easy-to-use, miniaturized nucleic acid testing technology and products for nonprofessionals are of great necessity to define the pathogens and assist in controlling disease transmission.
View Article and Find Full Text PDFReversal of Roux-en-Y Gastric Bypass: A Multi-Centric Analysis of Indications, Techniques, and Surgical Outcomes.
Obes Surg
January 2025
Department of Surgery and Transplantation, University Hospital of Zurich, University of Zurich, Zurich, Switzerland.
Background: Roux-en-Y gastric bypass may present long-term complications that require revisional surgery or even reversal to normal anatomy. Data on the indications, surgical technique, and outcomes of RYGB reversal remain scarce.
Methods: We identified 48 cases of RYGB reversals with complete 90-day follow-up within a multi-centric international retrospective database of elective secondary bariatric surgery.
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