Results 41 to 50 of about 5,956 (194)

Shallow Torpor Expression in Free-Ranging Common Hamsters With and Without Food Supplements

Frontiers in Ecology and Evolution, 2018
Energy expenditure during winter can be reduced by expressing torpor, which is characterized by decreased metabolic rate and body temperature. In addition to deep, multiday torpor bouts alternating with short arousal episodes during the hibernation ...
Carina Siutz, Viktoria Ammann, Eva Millesi   +2 more
doaj   +1 more source

Physiological changes during torpor favor association with Endozoicomonas endosymbionts in the urochordate Botrylloides leachii

Frontiers in Microbiology, 2023
Environmental perturbations evoke down-regulation of metabolism in some multicellular organisms, leading to dormancy, or torpor. Colonies of the urochordate Botrylloides leachii enter torpor in response to changes in seawater temperature and may survive ...
Yosef Hyams, Yosef Hyams, Maxim Rubin-Blum, Amalia Rosner, Leonid Brodsky, Leonid Brodsky, Yuval Rinkevich, Baruch Rinkevich   +7 more
doaj   +1 more source

FROM CRITICAL THINKING TO d‐CRITICAL THINKING: RECONSTRUCTING DEWEY'S SENSE OF CRITICAL IN HOW WE THINK

Educational Theory, EarlyView.
Abstract In this article, I reexamine John Dewey's original sense of critical in How We Think (first published in 1910), arguing that contemporary discourse about critical thinking reveals a process of lexicalization through which the term critical has lost its meaning. This article finds that Dewey's original sense of critical (which I term d‐Critical)
Matthew Landers
wiley   +1 more source

The heart of a hibernator: EGFR and MAPK signaling in cardiac muscle during the hibernation of thirteen-lined ground squirrels, Ictidomys tridecemlineatus [PDF]

PeerJ, 2019
Background Thirteen-lined ground squirrels (Ictidomys tridecemlineatus) experience dramatic changes in physiological and molecular parameters during winter hibernation.
Christine L. Childers, Shannon N. Tessier, Kenneth B. Storey   +2 more
doaj   +2 more sources

Induced Torpor as a Countermeasure for Low Dose Radiation Exposure in a Zebrafish Model

Cells, 2021
The development of the Artemis programme with the goal of returning to the moon is spurring technology advances that will eventually take humans to Mars and herald a new era of interplanetary space travel.
Thomas Cahill, Willian Abraham da Silveira, Ludivine Renaud, Tucker Williamson, Hao Wang, Dongjun Chung, Ian Overton, Sherine S. L. Chan, Gary Hardiman   +8 more
doaj   +1 more source

Understanding the scientific validity of synthetic torpor for radiation research and extended space missions

Frontiers in Space Technologies
The idea of synthetic torpor, an artificial state resembling the hypo-metabolic state of torpor/hibernation, has recently gained significant scientific attention.
Anggraeini Puspitasari Kokko, Anggraeini Puspitasari Kokko, Reema Chowdhury, Katelin Sherman, Matteo Cerri, Matteo Cerri, Matteo Cerri, Walter Tinganelli   +7 more
doaj   +1 more source

Daily Torpor and Sleep in a Non-human Primate, the Gray Mouse Lemur (Microcebus murinus)

Frontiers in Neuroanatomy, 2019
Daily torpor is an energy-saving process that evolved as an extension of non-rapid eye movement (NREM) sleep mechanisms. In many heterothermic species there is a relation between torpor expression and the repartition of the different behavioral states of
Julie Royo, Fabienne Aujard, Fabien Pifferi   +2 more
doaj   +1 more source

Lake sturgeon (Acipenser fulvescens) growth and longevity estimated from adult capture–mark–recapture data

Journal of Fish Biology, EarlyView.
Abstract Effective fishery management policy depends on accurate life‐history data, particularly for harvested species. Longevity is a core life‐history trait that is directly related to annual survival and lifetime reproductive potential, but fish longevity is generally not well documented, particularly for long‐lived species.
Edward A. Baker, Scott F. Colborne, Nancy A. Auer, Kim T. Scribner, Douglas L. Larson, Andrew S. Briggs, Ronald M. Bruch, Margaret H. Stadig, Michael C. Donofrio   +8 more
wiley   +1 more source

Renal Trichodinosis in the Japanese Rice Fish, Oryzias latipes: First Report and Phylogenetic Classification

Journal of Fish Diseases, EarlyView.
ABSTRACT Investigation of a disease outbreak in a hobbyist's medaka (Oryzias latipes) collection led to the detection of Trichodina sp. in the kidney tubuli of individual fish. Based on this observation, a thorough clinical workup, including native microscopy, histopathology and molecular genetics, was conducted.
J. Harl, K. Lipnik, S. Thalguter, E. Lewisch   +3 more
wiley   +1 more source

Identification of shared gene expression programs activated in multiple modes of torpor across vertebrate clades

Scientific Reports
Torpor encompasses diverse adaptations to extreme environmental stressors such as hibernation, aestivation, brumation, and daily torpor. Here we introduce StrokeofGenus, an analytic pipeline that identifies distinct transcriptomic states and shared gene ...
Kurt Weir, Natasha Vega, Veronica F. Busa, Ben Sajdak, Les Kallestad, Dana Merriman, Krzysztof Palczewski, Joseph Carroll, Seth Blackshaw   +8 more
doaj   +1 more source