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Current research and guidelines for euthanasia in laboratory fish with a focus on fathead minnows.
Lab Anim
January 2025
Environment and Climate Change Canada, Burlington, Canada.
This paper reviews the methods and approaches used to humanely anesthetize (render unconscious) and or euthanize (kill) laboratory fish (in research settings), with a specific focus on the fathead minnow. We surveyed the literature (333 scientific studies published 2004-2021) to examine euthanasia methods used for various life stages. Our findings showed that many published scientific papers do not provide an adequate description of anesthesia or euthanasia methods, particularly for larval fathead minnows.
View Article and Find Full Text PDFMaximum-Power Stirling-like Heat Engine with a Harmonically Confined Brownian Particle.
Entropy (Basel)
January 2025
Física Teórica, Universidad de Sevilla, Apartado de Correos 1065, E-41080 Sevilla, Spain.
Heat engines transform thermal energy into useful work, operating in a cyclic manner. For centuries, they have played a key role in industrial and technological development. Historically, only gases and liquids have been used as working substances, but the technical advances achieved in recent decades allow for expanding the experimental possibilities and designing engines operating with a single particle.
View Article and Find Full Text PDFThis paper examines the geopolitical implications of knowledge production in psychology through two studies that respond to the growing body of work on the 'Decolonisation of Knowledge' and the 'Decolonisation of Psychology' over the past two decades. By adopting a constructivist approach, particularly through the lens of Social Representation Theory (SRT), these studies explore the ways in which geopolitical contexts shape decolonial activism within psychological and scientific discourse. The first study sheds light on the lexical divergences in the construction of knowledge within the domains of psychology.
View Article and Find Full Text PDFCryogel Addition Effect on Ultrasound-Assisted Thawing of Pork Meat.
Int J Food Sci
December 2024
Laboratory 13 Thermal and Structural Analysis of Materials and Foods, Multidisciplinary Research Unit, National Autonomous University of Mexico-Superior Studies Faculty at Cuautitlan (UNAM-FESC), Cuautitlan Izcalli, Mexico State, Mexico.
The use of new technologies that allow for improving conventional food preservation processes is what the industry has been adopting in recent decades, with high-intensity ultrasound (US) and the application of cryoprotectant agents (cryogels) being those that have become more relevant today. For this reason, in this study, cuts of pork frozen in liquid nitrogen with and without waxy starch cryogel and thawed under controlled conditions in water immersion and with US were used, evaluating thermal parameters such as the initial zone and the melting rate of ice crystals and quality parameters such as pH, water holding capacity (WHC), microstructure, color profile, shear force, and surface changes. It was shown that the addition of cryogel modifies the initial fusion zone, that US-assisted thawing increases the fusion rate, and that both factors influence the quality parameters.
View Article and Find Full Text PDFBenefits and challenges of the integration of haptics-enhanced virtual reality training within dental curricula.
J Dent Educ
December 2024
Faculty of Health & Life Sciences, Institute of Life Course and Medical Sciences, School of Dentistry, University of Liverpool, Liverpool, UK.
Background: Haptics-enhanced virtual reality (VR-haptic) simulation in dental education has evolved considerably during the past decade, representing a promising resource of simulation-based training opportunities to support conventional practice. We aim to summarize current literature on the applications of VR-haptics in learning, practicing, and teaching dental education.
Methods: A literature search was performed using PubMed, focusing on research articles published between January 2010 and January 2024.
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