Results 81 to 90 of about 23,457,690 (345)

Protonophore activity of short‐chain fatty acids induces their intracellular accumulation and acidification

open access: yesFEBS Letters, EarlyView.
The protonated form of butyrate, as well as other short‐chain fatty acids (SCFAs), is membrane permeable. In acidic extracellular environments, this can lead to intracellular accumulation of SCFAs and cytosolic acidification. This phenomenon will be particularly relevant in acidic environments such as the large intestine or tumor microenvironments ...
Muwei Jiang   +2 more
wiley   +1 more source

Tracking sensory system atrophy and outcome prediction in spinal cord injury

open access: yesAnnals of Neurology, 2015
In patients with subacute spinal cord injury (SCI), the motor system undergoes progressive structural changes rostral to the lesion, which are associated with motor outcome.
Patrick Grabher   +6 more
semanticscholar   +1 more source

Sensory Alterations in Patients with Isolated Idiopathic Dystonia: An Exploratory Quantitative Sensory Testing Analysis

open access: yesFrontiers in Neurology, 2017
Abnormalities in the somatosensory system are increasingly being recognized in patients with dystonia. The aim of this study was to investigate whether sensory abnormalities are confined to the dystonic body segments or whether there is a wider ...
Lejla Paracka   +10 more
doaj   +1 more source

Assessment of the psychomotor fitness level of cadet pilots after a 6-month flight training period - pilot study

open access: yesFrontiers in Psychology, 2023
ObjectivesThe aim of the study was to investigate the impact of 6-month aviation practice on the improvement of physical fitness and cognitive abilities of cadet pilots.Materials and methodsTwenty cadet pilots (men) with an average age of 22 from the ...
Zbigniew Wochyński   +2 more
doaj   +1 more source

A stepwise emergence of evolution in the RNA world

open access: yesFEBS Letters, EarlyView.
How did biological evolution emerge from chemical reactions? This perspective proposes a gradual scenario of self‐organization among RNA molecules, where catalytic feedback on random mixtures plays the central role. Short oligomers cross‐ligate, and self‐assembly enables heritable variations. An event of template‐externalization marks the transition to
Philippe Nghe
wiley   +1 more source

Post-COVID-19 Impairment of the Senses of Smell, Taste, Hearing, and Balance

open access: yesViruses, 2022
Background: Various symptoms have been associated with COVID-19, but little is known about the impacts of COVID-19 on the sensory system, risk factors, and the duration of symptoms.
Sonja Ludwig   +11 more
doaj   +1 more source

B cell mechanobiology in health and disease: emerging techniques and insights into therapeutic responses

open access: yesFEBS Letters, EarlyView.
B cells sense external mechanical forces and convert them into biochemical signals through mechanotransduction. Understanding how malignant B cells respond to physical stimuli represents a groundbreaking area of research. This review examines the key mechano‐related molecules and pathways in B lymphocytes, highlights the most relevant techniques to ...
Marta Sampietro   +2 more
wiley   +1 more source

Integrated sensors for robotic laser welding [PDF]

open access: yes, 2005
A welding head is under development with integrated sensory systems for robotic laser welding applications. Robotic laser welding requires sensory systems that are capable to accurately guide the welding head over a seam in three-dimensional space and ...
Aarts, R.G.K.M., Iakovou, D., Meijer, J.
core   +1 more source

Physical and neural entrainment to rhythm: human sensorimotor coordination across tasks and effector systems. [PDF]

open access: yes, 2014
The human sensorimotor system can be readily entrained to environmental rhythms, through multiple sensory modalities. In this review, we provide an overview of theories of timekeeping that make this neuroentrainment possible.
Balasubramaniam, Ramesh   +1 more
core   +2 more sources

The development of scientific reasoning of preschool children: Micro-analysis of mind–material–body integration

open access: yesSouth African Journal of Childhood Education, 2019
Background: This article argues that the emergence of scientific reasoning in the preschool years could be augmented by caregivers and preschool teachers through nurturing ‘Habits of Mind’ (HOM) and ‘Habits of Body’ (HOB) of young children.
Retha van Niekerk
doaj   +1 more source

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