Results 91 to 100 of about 8,140 (235)

Forming and densification of lunar regolith simulant based on millimeter-scale energy beam melting

Journal of Materials Research and Technology
The cost of building a lunar outpost can be greatly reduced by adopting melting of lunar regolith using concentrated solar energy beam based on in-situ additive manufacturing, there are still considerable obstacles to boosting the compactness and ...
Yiwei Liu, Xian Zhang, Chao Wang, Junping Gu, Qinggong Wang, Xiong Chen, Wei Yao   +6 more
doaj   +1 more source

The Scholar Imprisoned: Young‐Bok Shin's Decolonial Thought Against (Sub) Imperialisms in East Asia

Sociological Forum, EarlyView.
ABSTRACT This article reads Young‐Bok Shin (1941–2016) as a decolonial thinker who theorized transformative worldmaking from the standpoint of the oppressed, rooted in the historical experiences of East Asia. Against the (sub)imperial “logic of sameness” that structures colonial modernity in his social world, Shin advances gongbu (studying) as a ...
Veda Hyunjin Kim
wiley   +1 more source

Seven days of mixed‐method heat acclimation improved markers of cardiovascular and fluid‐regulatory strain during exercise‐heat stress

Experimental Physiology, EarlyView.
Abstract A mixed‐method heat acclimation (HA) protocol may optimise performance by supporting the training taper while promoting thermal adaptation; however, the impact on cardiovascular and fluid‐regulatory adjustments to protect health is unknown. Therefore, we examined the effects of a mixed‐method heat protocol on physiological responses, including
Daniel Snape, Barney Wainwright, Iain T. Parsons, Michael J. Stacey, David R. Woods, John O'Hara   +5 more
wiley   +1 more source

Analysis and Prospect of Space Reactor Technology Development

Yuanzineng kexue jishu
As a significant space energy technology, space reactor technology possesses unique advantages and demonstrates broad application prospects in the space domain.
ZHAO Shouzhi1, XIE Jiachun1, LYU Zheng1, GAO Feng2, AN Weijian1, HOU Cheng1, HUO Honglei1
doaj   +1 more source

A multi‐omics investigation of sarcopenia and frailty: Integrating genomic, epigenomic and telomere length data

Experimental Physiology, EarlyView.
Abstract Sarcopenia and frailty are complex geriatric syndromes influenced by a combination of genetic and environmental factors. Recent studies suggest that specific genetic variants, DNA methylation patterns and shortened telomeres are associated with age‐related diseases and might contribute to the development of both sarcopenia and frailty. In this
Valentina Ginevičienė, Erinija Pranckevičienė, Alina Urnikytė, Laura Jurkūnaitė, Kristijona Gutauskaitė, Rūta Dadelienė, Justina Kilaitė, Ieva Eglė Jamontaitė, Asta Mastavičiūtė, Ildus I. Ahmetov, Vidmantas Alekna   +10 more
wiley   +1 more source

Quantifying microvascular responses to local heating using optical coherence tomography: Comparison between skin sites and sex differences

Experimental Physiology, EarlyView.
Summary of the study design, metholodgy, results and conclusions. Abstract Due to a lack of technical capacity to directly visualise and quantify microvessels in the skin, little is known regarding regional and/or sex differences. We compared diameter, velocity, flow and density at four regional sites using a novel optical coherence tomography (OCT ...
Juliene G. Costa, Kristanti W. Wigati, Louise H. Naylor, Helen Jones, Robert A. McLaughlin, Daniel J. Green   +5 more
wiley   +1 more source

Exercise during 14 days of head down tilt bedrest attenuates motor unit impairments in older humans

Experimental Physiology, EarlyView.
Abstract Head‐down tilt bedrest (HDBR) models the effects of mechanical unloading on neuromuscular function. The efficacy of exercise in preserving motor unit (MU) function in older adults during HDBR remains unclear. This study investigated the effects of 14‐day HDBR on MU properties in older adults and the protective role of exercise.
Philippe St‐Martin, Jean‐Christophe Lagacé, Mathil Ruel, Ahmed Ghachem, Guillaume Léonard, Eleonor Riesco, Mathew Piasecki, Jamie S. McPhee, Isabelle J. Dionne   +8 more
wiley   +1 more source

Optimal Design of High-Power Density Medium-Voltage Direct Current Bipolar Power Cables for Lunar Power Transmission

Aerospace
Power systems on the lunar surface require power lines of varying lengths and capacities to connect generation, storage, and load facilities. These lines must be designed to perform efficiently in the harsh lunar environment, considering factors such as ...
Anoy Saha, Mona Ghassemi
doaj   +1 more source

Impact of 14 days of head‐down bed rest and an exercise countermeasure on skeletal muscle atrophy, proteome and circulatory cytokines in older adults

Experimental Physiology, EarlyView.
Abstract Prolonged bed rest and immobilization have deleterious effects on skeletal muscle mass and function, especially in older adults. These can lead to reduced physical capacity and quality of life. Previous experiments in younger individuals show that exercise can mitigate these effects, but evidence remains scarce and inconclusive in older adults.
Jean‐Christophe Lagacé, Philippe St‐Martin, Mariano Avino, Ahmed Ghachem, Guy Hajj‐Boutros, Jose A. Morais, Jamie S. McPhee, Karen Lambert, Eléonor Riesco, Isabelle J. Dionne   +9 more
wiley   +1 more source

Effects of 14 days of head‐down bed rest with or without exercise, and subsequent recovery on bone turnover, density and structure in older adults

Experimental Physiology, EarlyView.
Abstract Bed rest accelerates bone loss and may exacerbate skeletal fragility. This study examined the effects of 14 days of head‐down tilt bed rest (HDBR) with or without exercise, and subsequent recovery, on bone turnover, density and structure in older adults. Twenty‐two healthy older adults (55–65 years) completed the HDBR protocol.
Guy Hajj‐Boutros, Andréa Faust, Carmelo Mastrandrea, Vita Sonjak, Dounia Rouabhia, Gustavo Duque, Richard Kremer, Stéphanie Chevalier, Julie Lacombe, Mathieu Ferron, Tyler A. Churchward‐Venne, José A. Morais   +11 more
wiley   +1 more source