Results 141 to 150 of about 64,062 (325)
An experimentally informed computational model of neurovestibular adaptation to altered gravity
Abstract Transitions to altered gravity environments result in acute sensorimotor impairment for astronauts, leading to serious mission and safety risks in the crucial first moments in a new setting. Our understanding of the time course and severity of impairment in the early stages of adaptation remains limited and confounded by unmonitored head ...
Victoria G. Kravets, Torin K. Clark
wiley +1 more source
Telemedicine experience in the Brazilian Amazon
Christopher Robert Jones+8 more
doaj +3 more sources
Previous research has studied the evolution of patterns during the evaporation of sessile droplets of pure liquid, although there is a lack of reports focusing on the transition of flow regimes and flow stability of nanofluids.
Yuequn Tao, Zhiqiang Zhu
doaj +1 more source
Abstract A reduction in cerebral blood flow (CBF) has been observed during spaceflight and bed rest. We aimed to examine the magnitude and regional heterogeneity of the decrease in CBF during bed rest compared to posture changes on Earth. Seventeen participants (age, 29 ± 9 years, 7 females) were studied in the upright and supine posture and over 3 ...
Carmen Possnig+8 more
wiley +1 more source
Behavior of a liquid drop in a rounded corner: Different contact angles
The Concus-Finn condition, based on the local microscopic contact angle, can be used to predict discontinuous behavior of a liquid drop in an ideally sharp corner.
Zhiyi Han, Li Duan, Qi Kang
doaj +1 more source
Dynamic scaling for the growth of non-equilibrium fluctuations during thermophoretic diffusion in microgravity [PDF]
Diffusion processes are widespread in biological and chemical systems, where they play a fundamental role in the exchange of substances at the cellular level and in determining the rate of chemical reactions. Recently, the classical picture that portrays diffusion as random uncorrelated motion of molecules has been revised, when it was shown that giant
arxiv
microgravity and nanomaterials
Some experiments evidence that Microgravity (Micro-g) has influence in the morphology growth rate of materials and physiology of biological systems. Some Micro-g systems have been developed for experimentation under these conditions. The 2-D, 3-D clinostats and Random Positioning machines stimulate weightlessness.
Palma Jiménez, Melissa+3 more
openaire +3 more sources
Abstract Blood flow restriction (BFR) has been identified as a potential countermeasure to mitigate physiological deconditioning during spaceflight. Guidelines recommend that tourniquet pressure be prescribed relative to limb occlusion pressure (LOP); however, it is unclear whether body tilting or reduced gravity analogues influence LOP.
Patrick Swain, Nick Caplan, Luke Hughes
wiley +1 more source
A high-precision ground microgravity simulation environment serves as the prerequisite and key to studying landing dynamics in microgravity environments.
Zhenhe Jia+10 more
doaj +1 more source