Immersion of patients in a body bag filled with ice and water is recommended as prehospital management of severe hyperthermia. Experienced paramedics have raised a number of concerns about the use of this technique; particularly, whether cardiac monitoring equipment would remain functional once immersed. This test showed that monitoring equipment does remain functional and provides advice about safety considerations. The test should reassure practitioners that such an approach is feasible.
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http://dx.doi.org/10.1017/S1049023X19004886 | DOI Listing |
J Food Sci
January 2025
Department of Human Nutrition, Food, and Animal Sciences, University of Hawai'i at Mānoa, Honolulu, Hawai'i, USA.
Freezing extends the shelf life of foods but often leads to structural damage due to ice crystal formation, negatively impacting quality attributes. Oscillating magnetic field (OMF)-assisted supercooling has emerged as a potential technique to overcome these limitations by inhibiting ice nucleation and maintaining foods in a supercooled state. Despite its potential, the effectiveness and underlying mechanisms of OMF-assisted supercooling remain subjects of debate.
View Article and Find Full Text PDFPhotosynth Res
January 2025
Department of Biology, University of Ottawa, 30 Marie-Curie Pr., Ottawa, ON, K1N 6N5, Canada.
The perennially ice-covered Lake Bonney in Antarctica has been deemed a natural laboratory for studying life at the extreme. Photosynthetic algae dominate the lake food webs and are adapted to a multitude of extreme conditions including perpetual shading even at the height of the austral summer. Here we examine how the unique light environment in Lake Bonney influences the physiology of two Chlamydomonas species.
View Article and Find Full Text PDFACS Omega
January 2025
Faculty of Physics and Technology, Al-Farabi Kazakh National University, Al-Farabi ave. 71/23, 050040 Almaty, Kazakhstan.
This study investigates the formation of carbon dioxide clathrate hydrates under conditions simulating interstellar environments, a process of significant astrophysical and industrial relevance. Clathrate hydrates, where gas molecules are trapped within water ice cages, play an essential role in both carbon sequestration strategies and understanding of the behavior of ices in space. We employed a combination of Fourier Transform Infrared (FTIR) spectroscopy, mass spectrometry, temperature-programmed desorption (TPD), and Density Functional Theory (DFT) calculations to explore thin films of HO:CO ice mixtures with varying CO concentrations (5-75%) prepared by vapor deposition at temperatures ranging between 11 and 180 K.
View Article and Find Full Text PDFJ Sci Food Agric
January 2025
College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan, China.
Background: The quality of Acipenser sinensis deteriorates significantly during frozen storage due to its high water, protein, and unsaturated fatty acid content. Conventional freezing methods are insufficient to preserve it effectively. This study investigated the effects of liquid nitrogen freezing (LNF) on the quality and myofibrillar protein (MP) characteristics of A.
View Article and Find Full Text PDFJ Food Sci
January 2025
College of Tourism and Culinary Science, Yangzhou University, Yangzhou, China.
Sweet potato-oat composite dough is a nutritious, functional dough with promising market potential. This study investigates its quality changes during freeze-thaw cycles from the perspectives of ice crystals and protein alterations to provide theoretical support for its processing and production. After freeze-thaw cycles, both the storage modulus and loss modulus of the dough decrease, resulting in increased hardness, reduced resilience and chewiness, lower sensory scores, decreased specific volume, and darker color.
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