Results 11 to 20 of about 336,208 (344)

Torsional locomotion [PDF]

open access: yesProceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2014
One edge of an elastic rod is inserted into a friction-less and fitting socket head, whereas the other edge is subjected to a torque, generating a uniform twisting moment. It is theoretically shown and experimentally proved that, although perfectly smooth, the constraint realizes an expulsive axial force on the elastic rod, which amount is independent ...
Bigoni, Davide   +3 more
openaire   +4 more sources

Data‐driven performance metrics for neural network learning

open access: yesInternational Journal of Adaptive Control and Signal Processing, EarlyView., 2023
Summary Effectiveness of data‐driven neural learning in terms of both local mimima trapping and convergence rate is addressed. Such issues are investigated in a case study involving the training of one‐hidden‐layer feedforward neural networks with the extended Kalman filter, which reduces the search for the optimal network parameters to a state ...
Angelo Alessandri   +2 more
wiley   +1 more source

Rhythms of Locomotion Expressed by Limulus polyphemus, the American Horseshoe Crab: II. Relationship to Circadian Rhythms of Visual Sensitivity [PDF]

open access: yes, 2008
In the laboratory, horseshoe crabs express a circadian rhythm of visual sensitivity as well as daily and circatidal rhythms of locomotion. The major goal of this investigation was to determine whether the circadian clock underlying changes in visual ...
Bedford, Lisa   +2 more
core   +3 more sources

Pygmy locomotion

open access: yesEuropean Journal of Applied Physiology and Occupational Physiology, 1994
The hypothesis that Pygmies may differ from Caucasians in some aspects of the mechanics of locomotion was tested. A total of 13 Pygmies and 7 Caucasians were asked to walk and run on a treadmill at 4-12 km.h-1. Simultaneous metabolic measurements and three-dimensional motion analysis were performed allowing the energy expenditure and the mechanical ...
MINETTI A. E.   +5 more
openaire   +5 more sources

Sitting for Too Long, Moving Too Little: Regular Muscle Contractions Can Reduce Muscle Stiffness During Prolonged Periods of Chair-Sitting

open access: yesFrontiers in Sports and Active Living, 2021
In modern Western societies, sedentary behavior has become a growing health concern. There is increasing evidence that prolonged sitting periods can be associated with musculoskeletal disorders.
Alexander R. Kett   +3 more
doaj   +1 more source

Locomotion of Spirilla

open access: yesBiophysical Journal, 1972
The hydromechanics of spirilla locomotion is analyzed by considering the balance of both rectilinear and angular momenta of the surrounding viscous fluid which is otherwise at rest. The physical model of Spirillum adopted for the present analysis consists of a rigid helical body with flagella attached to both ends of the helix.
Chwang, A. T., Wu, T. Y., Winet, H.
openaire   +4 more sources

Expectation-based types of voluntary sports clubs in regional sports federations

open access: yesFrontiers in Sports and Active Living, 2023
Sports federations as non-profit organizations play a crucial role for organized sports activities of the population. However, one key responsibility of sports federations is providing needs-based support services to affiliated member sports clubs.
Luc Schulz   +2 more
doaj   +1 more source

Different visual manipulations have similar effects on quasi-static and dynamic balance responses of young and older people [PDF]

open access: yesPeerJ, 2021
Background Studies demonstrated that the older adults can be more susceptible to balance instability after acute visual manipulation. There are different manipulation approaches used to investigate the importance of visual inputs on balance, e.g., eyes ...
Daniel Schmidt   +3 more
doaj   +2 more sources

Managing intra-articular deformity in high Tibial osteotomy: a narrative review

open access: yesJournal of Experimental Orthopaedics, 2020
The joint line convergence angle (JLCA) has a normal range between 0° to 2°, which increases in magnitude depending on the severity and stage of osteoarthritis in the knee. The JLCA represents the interaction of the intra-articular deformity arising from
Grégoire Micicoi   +5 more
doaj   +1 more source

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