Results 71 to 80 of about 6,694 (292)
An overview of gravitational physiology [PDF]
The focus of this review is on the response of humans and animals to the effects of the near weightless condition occurring aboard orbiting spacecraft. Gravity is an omnipresent force that has been a constant part of our lives and of the evolution of all
Miquel, Jaime, Souza, Kenneth A.
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Advanced Engineering Materials, EarlyView.The tribological behavior of 100Cr6 steel spheres textured via Vickers microindentation is evaluated under lubricated sliding by varying both dimple size and density. Fine and dense textures significantly reduce friction across all lubrication regimes, while large dimples increase it.
Farideh Davoodi +3 more
wiley +1 more source
Investigating the effect of zinc supplementation on preventing bone resorption in a weightlessness animal model: An experimental study [PDF]
فصلنامه ابن سیناBackground and aims: Bone biomarkers, such as bone-specific alkaline phosphatase (BAP) and osteocalcin (OC), are crucial for researching and monitoring the effects of therapeutic interventions.
Reza Eslami +2 more
doaj
Computer simulation of preflight blood volume reduction as a countermeasure to fluid shifts in space flight [PDF]
Fluid shifts in weightlessness may cause a central volume expansion, activating reflexes to reduce the blood volume. Computer simulation was used to test the hypothesis that preadaptation of the blood volume prior to exposure to weightlessness could ...
Charles, J. B. +2 more
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Packaging of Macroscopic Material Payloads: Needs, Challenges, Concepts, and Future Directions
Advanced Engineering Materials, EarlyView.This review introduces a unified framework that decomposes any macroscopic packaging system into the payload, packaging material, and packaging strategy and combines them into a conceptual packaging equation: packaging strategy = payload + packaging material.
Venkata S. R. Jampani, Manos Anyfantakis
wiley +1 more source
Simulated microgravity triggers epithelial mesenchymal transition in human keratinocytes
Scientific Reports, 2017 The microgravitational environment is known to affect the cellular behaviour inducing modulation of gene expression and enzymatic activities, epigenetic modifications and alterations of the structural organization. Simulated microgravity, obtained in the
Danilo Ranieri +9 more
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Musculoskeletal discipline science plan [PDF]
Life sciences research in the musculoskeletal discipline must identify possible consequences of weightlessness on this system, understand the mechanisms of these effects, and develop effective and operationally practical countermeasures to protect ...
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Advanced Engineering Materials, EarlyView.This study investigates innovative thermoreversible hydrogels derived from S53P4 bioactive glass extracts to aid in the healing of infected diabetic foot wounds. These injectable gels, which gel at body temperature, release beneficial ions and remain stable over time.
Marian G. Vargas Guerrero +9 more
wiley +1 more source
Aerospace medicine and biology. A continuing bibliography with indexes, supplement 224 [PDF]
This bibliography lists 127 reports, articles, and other documents introduced into the NASA scientific and technical information system in September ...
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Additive Gaussian Process Regression for Predictive Design of High‐Performance, Printable Silicones
Advanced Engineering Materials, EarlyView.A chemistry‐aware design framework for tuning printable polydimethylsiloxane (PDMS) for vat photopolymerization (VPP) is developed using additive Gaussian process (GP) modeling. Polymer network mechanics informs variable groupings, feasible formulation constraints, and interaction variables.
Roxana Carbonell +3 more
wiley +1 more source