Results 41 to 50 of about 1,152 (181)
The functional state of the neuromotor system during hypogravity in a rat. Support load effects
IOP Conference Series: Earth and Environment, 2021 The main goal of the research was to estimate the morpho-functional condition of the neuromotor apparatus of the rat soleus muscle under simulated gravitational unloading, as well as under simulated gravitational unloading combined with the action of ...
Fedianin A.O. +2 more
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RESPONSE TO HYPOGRAVITY OF NORMAL IN VITRO CULTURED FOLLICOLAR CELLS FROM THYROID
Acta Astronautica, 1998 Aim of this investigation is the study of molecular modifications occurring in differentiated mammalian cells exposed to gravitational changes. The test system chosen is a well characterized clone of differentiated, normal thyroid follicular cells (FRTL5)
CURCIO, Francesco +3 more
core +3 more sources
Circadian regulation in aging: Implications for spaceflight and life on earth
Aging Cell, Volume 22, Issue 9, September 2023., 2023 Circadian dysregulation as an emerging hallmark of aging on Earth and during space travel. Abstract Alterations in the circadian system are characteristic of aging on Earth. With the decline in physiological processes due to aging, several health concerns including vision loss, cardiovascular disorders, cognitive impairments, and muscle mass loss arise
Deeksha Malhan +4 more
wiley +1 more source
Inventions, 2022 The study presents a newly constructed modification of a random positioning machine (RPM) used in 3D-clinostat and in random mode. The main purpose is to provide an RPM animal model that uses up to four experimental animals simultaneously.
Viktor V. Yotov +3 more
doaj +1 more source
The effect of microgravity on the human venous system and blood coagulation: a systematic review
Experimental Physiology, Volume 106, Issue 5, Page 1149-1158, 1 May 2021., 2021 New Findings What is the central question of this study? Recently, an internal jugular venous thrombus was identified during spaceflight: does microgravity induce venous and/or coagulation pathophysiology, and thus an increased risk of venous thromboembolism (VTE)? What is the main finding and its importance?
David S. Kim +7 more
wiley +1 more source
Pursuer Navigation Based on Proportional Navigation and Optimal Information Fusion
Complexity, Volume 2021, Issue 1, 2021., 2021 Pursuer navigation is proposed based on the three‐dimensional proportional navigation law, and this method presents a family of navigation laws resulting in a rich behavior for different parameters. Firstly, the kinematics model for the pursuer and the target is established.
Shulin Feng +7 more
wiley +1 more source
Journal of Neurophysiology, 2018 Overestimation of roll tilt in hypergravity (“G-excess” illusion) has been demonstrated, but corresponding sustained hypogravic conditions are impossible to create in ground laboratories.
Diaz-Artiles, Ana +8 more
core +2 more sources
Quasi-Zero Stiffness Isolator Suitable for Low-Frequency Vibration
Machines, 2023 This paper proposes a quasi-zero stiffness (QZS) isolator based on an inclined trapezoidal beam to explore its advantages in low-frequency passive vibration isolation. The nonlinear stiffness of the inclined trapezoidal beam due to the buckling effect is
Guangdong Sui +5 more
doaj +1 more source
Hypothalamic Control during Hypogravity
Biological Sciences in Space, 1988 Hypogravity (low G) has been known to elicit many changes in automatic and endocrine functions which may be regulated by the hypothalamus. We investigated hypothalamic neuron activity during low-G simulation and its involvement on regulation of muscle electrolytes and Ca metabolism.
Aou, Shuji +6 more
openaire +2 more sources
Aerospace, 2022 During the contact between the detumbling end-effector and large non-cooperative target, the recognition of impact pressure distribution is important for estimating the success rate of detumbling mission.
Siqi Peng +5 more
doaj +1 more source