Effectiveness of centrifuge-induced artificial gravity with ergometric exercise as a countermeasure during simulated microgravity exposure in humans [0.03%]
离心力和ergometric运动对抗模拟失重的实验效果研究
Satoshi Iwase
Satoshi Iwase
To test the effectiveness of centrifuge-induced artificial gravity with ergometric exercise, 12 healthy young men (20.7 +/- 1.9 yr) were exposed to simulated microgravity for 14 days of -6 degrees head-down bedrest. Half the subjects were r...
Cell-to-cell interactions in changed gravity: ground-based and flight experiments [0.03%]
_changed gravity条件下的细胞相互作用：基于地面和飞行实验_
L Buravkova,Yu Romanov,M Rykova et al.
L Buravkova et al.
Cell-to-cell interactions play an important role in all physiological processes and are mediated by humoral and mechanical factors. Mechanosensitive cells (e.g., osteocytes, chondrocytes, and fibroblasts) can be studied ex vivo to understan...
Mars habitat modules: launch, scaling and functional design considerations [0.03%]
火星居住区模块：发射、规模和功能设计考虑因素
Larry Bell,Gerald D Hines
Larry Bell
The Sasakawa International Center for Space Architecture (SICSA) is undertaking a multi-year research, planning and design study that is exploring near- and long-term commercial space development opportunities. The central goal of this acti...
Immobilization induces a very rapid increase in osteoclast activity [0.03%]
immobilization诱导骨吸收的快速增加
Martina Heer,Natalie Baecker,Claudia Mika et al.
Martina Heer et al.
We studied in a randomized, strictly controlled cross-over design, the effects of 6 days 6 degrees head-down tilt bed rest (HDT) in eight male healthy subjects in our metabolic ward. The study consisted of two periods (phases) of 11 days ea...
The fluid-dynamic disturbances induced on the ISS, based on the first acceleration measurements on board the space station [0.03%]
根据空间站上首次进行的加速度测量得出的空间站流体动力学干扰研究
R Monti,R Savino,D Paterna
R Monti
The different acceleration components on the ISS that are responsible for the generation of convective motions in a fluid cell either in the presence of density gradients or in quasi-isodense processes, are analyzed. The NASA measurements o...
The relative role of visual and non-visual cues in determining the perceived direction of "up": experiments in parabolic flight [0.03%]
视觉与非视觉线索在确定“向上”感知方向中的相对作用：抛物线飞行实验
H L Jenkin,R T Dyde,J E Zacher et al.
H L Jenkin et al.
In order to measure the perceived direction of "up", subjects judged the three-dimensional shape of disks shaded to be compatible with illumination from particular directions. By finding which shaded disk appeared most convex, we were able ...
Toward optimizing lighting as a countermeasure to sleep and circadian disruption in space flight [0.03%]
为空间飞行中睡眠和昼夜紊乱优化照明措施的研究进展
Robert L Fucci,James Gardner,John P Hanifin et al.
Robert L Fucci et al.
Light is being used as a pre-launch countermeasure to circadian and sleep disruption in astronauts. The effect of light on the circadian system is readily monitored by measurement of plasma melatonin. Our group has established an action spe...
Increased urinary excretion rates of serotonin and metabolites during bedrest [0.03%]
卧床时尿内血清素及代射产物的排出率升高
Petra Platen,Marion Lebenstedt,Myriam Schneider et al.
Petra Platen et al.
Astronauts are often on a voluntarily reduced energy intake during space missions, possibly caused by a metabolic or emotional stress response with involvement of the central serotonergic system (SES). We investigated 24 h urinary excretion...
Comparative Study
Acta astronautica. 2005 May-Jun;56(9-12):801-8. DOI:10.1016/j.actaastro.2005.01.005 2005
Jay C Buckey,Darin A Knaus,Donna L Alvarenga et al.
Jay C Buckey et al.
ISS construction and Mars exploration require extensive extravehicular activity (EVA), exposing crewmembers to increased decompression sickness risk. Improved bubble detection technologies could help increase EVA efficiency and safety. Crea...
Gravity and perceptual stability during translational head movement on earth and in microgravity [0.03%]
地球上和微重力环境下平移头部运动时的重力与感知稳定性的关系
P Jaekl,D C Zikovitz,M R Jenkin et al.
P Jaekl et al.
We measured the amount of visual movement judged consistent with translational head movement under normal and microgravity conditions. Subjects wore a virtual reality helmet in which the ratio of the movement of the world to the movement of...