Results 91 to 100 of about 8,000,685 (282)

Benchmarking Open-Loop Central Pattern Generator Controllers for Lower-Limb Exoskeleton Walking Trajectories

open access: yesIEEE Access
Central Pattern Generators (CPGs) enable rhythmic, biologically inspired control of robotic locomotion. This study presents a comparative evaluation of three CPG models: Hopf, Matsuoka, and sinusoidal implemented on a simplified lower-limb exoskeleton ...
Hod Pery   +2 more
doaj   +1 more source

Atoh1-dependent rhombic lip neurons are required for temporal delay between independent respiratory oscillators in embryonic mice

open access: yeseLife, 2014
All motor behaviors require precise temporal coordination of different muscle groups. Breathing, for example, involves the sequential activation of numerous muscles hypothesized to be driven by a primary respiratory oscillator, the preBötzinger Complex ...
Srinivasan Tupal   +6 more
doaj   +1 more source

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

open access: yesFEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa   +2 more
wiley   +1 more source

Embroidery Transfer Pattern

open access: yes, 1940
Envelope for a McCall Kaumagraph Transfer pattern to embroider floral designs on suggested items such as sheets, pillowcases, infant wear, bibs, and lingerie; includes illustrations and information about stamping and embroidering the ...
McCall Pattern Company
core   +1 more source

Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis

open access: yesFEBS Letters, EarlyView.
Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee   +7 more
wiley   +1 more source

Neuromodulation and flexibility in Central Pattern Generator networks [PDF]

open access: yesCurrent Opinion in Neurobiology, 2011
Central Pattern Generator (CPG) networks, which organize rhythmic movements, have long served as models for neural network organization. Modulatory inputs are essential components of CPG function: neuromodulators set the parameters of CPG neurons and synapses to render the networks functional.
openaire   +2 more sources

Modelling stem cell differentiation related processes—A practical overview for biologists

open access: yesFEBS Letters, EarlyView.
Stem cell differentiation is complex and difficult to control experimentally. This review introduces suitable computational modelling approaches that can support stem cell research, from mechanistic ODE and abstract models to multiscale and deep learning methods.
Ricco Zeegelaar   +4 more
wiley   +1 more source

Bionic Walking Control of a Biped Robot Based on CPG Using an Improved Particle Swarm Algorithm

open access: yesActuators
In the domain of bionic walking control for biped robots, optimizing the parameters of the central pattern generator (CPG) presents a formidable challenge due to its high-dimensional and nonlinear characteristics.
Yao Wu   +3 more
doaj   +1 more source

Design and analysis strategies for robust microbiome ageing research

open access: yesFEBS Letters, EarlyView.
The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik   +5 more
wiley   +1 more source

Functional organization and adaptability of a decision-making network in Aplysia

open access: yesFrontiers in Neuroscience, 2012
Whereas major insights into the neuronal basis of adaptive behavior have been gained from the study of automatic behaviors, including reflexive and rhythmic motor acts, the neural substrates for goal-directed behaviors in which decision-making about ...
Romuald eNargeot   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy