Results 31 to 40 of about 36,062 (158)
Rehabilitation of a patient with stroke
Stroke is a significant cause of long-term disability world-wide. The post-stroke disabilities are due to loss of locomotion, activity of daily living, cognition and communication skills.
Apurba Barman, Ashok K. Mahapatra
doaj +1 more source
Using Surface-Motions for Locomotion of Microscopic Robots in Viscous Fluids [PDF]
Microscopic robots could perform tasks with high spatial precision, such as acting in biological tissues on the scale of individual cells, provided they can reach precise locations.
Hogg, Tad
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Background Ageing is associated with a decline of motor function and ability to perform daily activities. Locomotive disorders are one of the major disorders resulting in adverse health condition in elderly people.
Tsutomu Iwaya +5 more
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A geometric framework for dynamics with unilateral constraints and friction, illustrated by an example of self-organized locomotion [PDF]
We present a geometric framework to deal with mechanical systems which have unilateral constraints, and are subject to damping/friction, which cannot be treated within usual classical mechanics. In this new framework, the dynamical evolution of the system takes place on a multidimensional curvilinear polyhedron, and energetics near the corners of the ...
Shankar Ghosh +3 more
openaire +1 more source
Restricted Discrete Invariance and Self-Synchronization For Stable Walking of Bipedal Robots [PDF]
Models of bipedal locomotion are hybrid, with a continuous component often generated by a Lagrangian plus actuators, and a discrete component where leg transfer takes place. The discrete component typically consists of a locally embedded co-dimension one
Bloch, Anthony M. +3 more
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Variability raises considerable interest as a promising and sensitive marker of dysfunction in physiology, in particular in neurosciences. Both internally (e.g., pathology) and/or externally (e.g., environment) generated perturbations and the neuro ...
Thibault Warlop +14 more
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Collective signal processing in cluster chemotaxis: roles of adaptation, amplification, and co-attraction in collective guidance [PDF]
Single eukaryotic cells commonly sense and follow chemical gradients, performing chemotaxis. Recent experiments and theories, however, show that even when single cells do not chemotax, clusters of cells may, if their interactions are regulated by the ...
Camley, Brian A. +3 more
core +3 more sources
Towards an analytical description of active microswimmers in clean and in surfactant-covered drops [PDF]
Geometric confinements are frequently encountered in the biological world and strongly affect the stability, topology, and transport properties of active suspensions in viscous flow.
Ardekani, Arezoo M. +8 more
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Fluid flows shaping organism morphology
A dynamic self-organized morphology is the hallmark of network-shaped organisms like slime moulds and fungi. Organisms continuously re-organize their flexible, undifferentiated body plans to forage for food. Among these organisms the slime mould Physarum
Alim, Karen
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A hyper-redundant manipulator [PDF]
“Hyper-redundant” manipulators have a very large number of actuatable degrees of freedom. The benefits of hyper-redundant robots include the ability to avoid obstacles, increased robustness with respect to mechanical failure, and the ability to perform ...
Burdick, Joel W., Chirikjian, Gregory S.
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