Results 71 to 80 of about 1,938,416 (191)

Comparison of joint kinematics between upright front squat exercise and horizontal squat exercise performed on a short arm human centrifugation

Physiological Reports
This study compared the joint kinematics between the front squat (FS) conducted in the upright (natural gravity) position and in the supine position on a short arm human centrifuge (SAHC). Male participants (N = 12) with no prior experience exercising on
Riccardo G. Sorrentino, Edwin Avila‐Mirèles, Jan Babič, Matej Supej, Igor B. Mekjavic, Adam C. McDonnell   +5 more
doaj   +1 more source

GOCE data evidence underplating beneath the Paraná basin

, 2012
The Paraná basin in the stable South American Platform accumulated a thick sediment layer during the Paleozoic, with more than 3500 m thickness. In Early Cretaceous the same area experienced a flood basalt volcanism which produced a LIP-(Large Igneous ...
MARIANI, PATRIZIA, BRAITENBERG, CARLA, Ussami, N.   +2 more
core  

Presentism and Quantum Gravity [PDF]

, 2001
There is a philosophical tradition of arguing against presentism, the thesis that only presently existing things exist, on the basis of its incompatibility with fundamental physics.
Monton, Bradley
core  

Why gravity is not an entropic force [PDF]

, 2010
The remarkable connections between gravity and thermodynamics seem to imply that gravity is not fundamental but emergent, and in particular, as Verlinde suggested, gravity is probably an entropic force.
Gao, Shan, Shan, Gao
core  

Improved Artificial Bee Colony Algorithm Based Gravity Matching Navigation Method

Sensors, 2014
Gravity matching navigation algorithm is one of the key technologies for gravity aided inertial navigation systems. With the development of intelligent algorithms, the powerful search ability of the Artificial Bee Colony (ABC) algorithm makes it possible
Wei Gao, Bo Zhao, Guang Tao Zhou, Qiu Ying Wang, Chun Yang Yu   +4 more
doaj   +1 more source

Artificial gravity for long-duration human spaceflight: physiological rationale, evidence gaps, risks, and research priorities

Frontiers in Space Technologies
Long-duration missions beyond low Earth orbit will expose crews to prolonged microgravity during transit and partial gravity on the Moon or Mars. Existing exercise, nutritional, pharmacological, and sensorimotor countermeasures mitigate selected aspects ...
Marine Briard, Sarah Baatout, Sarah Baatout   +2 more
doaj   +1 more source

Gravity gradient attitude control system Patent [PDF]

, 1971
Gravity gradient attitude control system with gravity gradiometer and reaction wheels for artificial satellite attitude ...
Price, H. W., Gatlin, J. A., Hoffman, H. C., Zimmerman, B. G.   +3 more
core  

Depth and Lineament Maps Derived from North Cameroon Gravity Data Computed by Artificial Neural Network

International Journal of Geophysics, 2018
Accurate interpretation of geological structures inverted from gravity data is highly dependent on the coverage of the recorded gravity data. In this work, Artificial Neural Networks (ANNs) are implemented using Levenberg-Marquardt algorithm (LMA) to ...
Marcelin Mouzong Pemi, Joseph Kamguia, Severin Nguiya, Eliezer Manguelle-Dicoum   +3 more
doaj   +1 more source

Muscle Weakness and the Irisin–BDNF and Oxidative Stress Axis in the 60‐Day Pseudorandomised Controlled AGBRESA Bed Rest Study

Journal of Cachexia, Sarcopenia and Muscle
Background Muscle atrophy and weakness are among the most detrimental consequences of disuse, microgravity, hospitalisation and ageing. Oxidative modifications of myofibrillar proteins generated by oxidative stress may contribute to the reduced force ...
Alessandra Bosutti, Bergita Ganse, Edwin Mulder, Markus Gruber, Maria Venegas‐Carro, Jochen Zange, Jörn Rittweger, Moritz Eggelbusch, Rob C. I. Wüst, Paul Hendrickse, Hans Degens   +10 more
doaj   +1 more source

Artificial Gravity in Theory and Practice

, 2016
United StatesUniversity of Michigan502ICES502: Space ArchitectureVienna, AustriaTheodore W. Hall, University of Michigan, USARotationally induced artificial gravity is often contested on two fronts: we don’t know its physiological effects; and, people ...
Hall, Theodore W.
core