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Estimating Wingbeat Frequency of Hummingbirds using a No-labeling Learning Computer Vision Approach.
Integr Comp Biol
January 2025
Centro de investigación Colibrí Gorriazul, Cundinamarca, Colombia.
Wingbeat frequency estimation is an important aspect for the study of avian flight, energetics, and behavioral patterns, among others. Hummingbirds, in particular, are ideal subjects to test a method for this estimation due to their fast wing motions and unique aerodynamics, which results from their ecological diversification, adaptation to high-altitude environments, and sexually selected displays. Traditionally, wingbeat frequency measurements have been done via "manual" image/sound processing.
View Article and Find Full Text PDF[Video-assisted thoracic surgery-Indications, importance and technique].
Chirurgie (Heidelb)
January 2025
Klinik und Poliklinik für Chirurgie, Sektion Thoraxchirurgie, Klinikum Rechts der Isar, Technische Universität München, Ismaninger Straße 22, 81675, München, Deutschland.
Video-assisted thoracic surgery (VATS) is a safe and effective surgical procedure. Completely minimally invasive operations must be distinguished from hybrid procedures. The VATS can be used for diagnostic and treatment purposes for all oncological and non-oncological diseases of the thoracic organs.
View Article and Find Full Text PDFGo big or spin fast? Biomechanical deterministic models for snowboard freestyle tricks performed on a trampoline.
J Sports Sci
January 2025
Institute of Biomechanics and Orthopaedics, German Sport University, Cologne, Germany.
In snowboard freestyle, rotation is the key indicator of trick difficulty, encouraging riders to perform tricks with more rotation. In many cases, snowboarders learn and practice tricks using training tools such as trampolins and/or landingbags before they transfer this tricks on-snow. It has not yet been scientifically investigated which movement parameters are primarily responsible for the acquisistion of increasingly difficult cork tricks.
View Article and Find Full Text PDFOmnidirectional Wireless Power Transfer for Millimetric Magnetoelectric Biomedical Implants.
IEEE J Solid-State Circuits
November 2024
Department of Electrical and Computer Engineering, Rice University, Houston TX, 77005, USA.
Miniature bioelectronic implants promise revolutionary therapies for cardiovascular and neurological disorders. Wireless power transfer (WPT) is a significant method for miniaturization, eliminating the need for bulky batteries in today's devices. Despite successful demonstrations of millimetric battery-free implants in animal models, the robustness and efficiency of WPT are known to degrade significantly under misalignment incurred by body movements, respiration, heart beating, and limited control of implant orientation during surgery.
View Article and Find Full Text PDFPreliminary effects of oral ANS-6637, an ALDH2 inhibitor, on cue-induced craving, safety and alcohol consumption among adults with alcohol use disorder: a proof-of-concept, randomized, human laboratory trial.
Alcohol Alcohol
January 2025
Division of Treatment and Recovery, National Institute on Alcohol Abuse and Alcoholism, 6700 B Rockledge Drive, Bethesda, MD 20892, United States.
Aims: We evaluated the safety, efficacy, and patient adherence to oral ANS-6637, a selective, reversible inhibitor of aldehyde dehydrogenase 2 (ALDH2), for treating alcohol use disorder (AUD).
Methods: A 3-arm, double-blind, randomized, proof-of-concept human laboratory study embedded in a 5-week multisite clinical trial tested 200 mg and 600 mg daily doses of ANS-6637 compared to placebo in treatment-seeking adults with AUD. After 1 week of medication, participants completed an alcohol cue reactivity session.
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