Results 31 to 40 of about 36,062 (158)

Rehabilitation of a patient with stroke

open access: yesIndian Journal of Neurosurgery, 2013
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]

open access: yes, 2014
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
core   +1 more source

Characteristics of disability in activity of daily living in elderly people associated with locomotive disorders

open access: yesBMC Geriatrics, 2017
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
doaj   +1 more source

A geometric framework for dynamics with unilateral constraints and friction, illustrated by an example of self-organized locomotion [PDF]

open access: yesProceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2018
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]

open access: yes, 2015
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
core   +1 more source

Gait Complexity and Regularity Are Differently Modulated by Treadmill Walking in Parkinson's Disease and Healthy Population

open access: yesFrontiers in Physiology, 2018
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
doaj   +1 more source

Collective signal processing in cluster chemotaxis: roles of adaptation, amplification, and co-attraction in collective guidance [PDF]

open access: yes, 2015
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]

open access: yes, 2020
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
core   +2 more sources

Fluid flows shaping organism morphology

open access: yes, 2018
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
core   +1 more source

A hyper-redundant manipulator [PDF]

open access: yes, 1994
“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.
core   +1 more source

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