Results 81 to 90 of about 12,109,967 (416)

Membrane potentials in the electroplates of the electric eel

open access: yesJournal of Physiology, 1953
Ever since Walsh (1773) and Williamson (1775) suggested that the paralysing effect of touching certain fishes was due to an electric discharge, the properties of the electric organ have interested physicists and physiologists alike.
R. Keynes, H. Martins-ferreira
semanticscholar   +1 more source

Solvent-free coarse-grained lipid model for large-scale simulations

open access: yes, 2010
A coarse-grained molecular model, which consists of a spherical particle and an orientation vector, is proposed to simulate lipid membrane on a large length scale.
Allen M. P.   +6 more
core   +1 more source

The Dynamic Role of Breathing and Cellular Membrane Potentials in the Experience of Consciousness [PDF]

open access: yes, 2017
Understanding the mechanics of consciousness remains one of the most important challenges in modern cognitive science. One key step toward understanding consciousness is to associate unconscious physiological processes with subjective experiences of ...
Barnes, Vernon A.   +3 more
core   +1 more source

The membrane dipole potential in a total membrane potential model. Applications to hydrophobic ion interactions with membranes

open access: yesBiophysical Journal, 1986
The total potential energy profile for hydrophobic ion interactions with lipid bilayers can be written as the sum of four terms: the electrical Born, image and dipole contributions, and a neutral energy term. We introduce a specific model for the membrane dipole potential, treating it as a two-dimensional array of point dipoles located near each ...
Wayne L. Hubbell, R.F. Flewelling
openaire   +3 more sources

Insights into PI3K/AKT signaling in B cell development and chronic lymphocytic leukemia

open access: yesFEBS Letters, EarlyView.
This Review explores how the phosphoinositide 3‐kinase and protein kinase B pathway shapes B cell development and drives chronic lymphocytic leukemia, a common blood cancer. It examines how signaling levels affect disease progression, addresses treatment challenges, and introduces novel experimental strategies to improve therapies and patient outcomes.
Maike Buchner
wiley   +1 more source

Non-linear population firing rates and voltage sensitive dye signals in visual areas 17 and 18 to short duration stimuli. [PDF]

open access: yesPLoS ONE, 2008
Visual stimuli of short duration seem to persist longer after the stimulus offset than stimuli of longer duration. This visual persistence must have a physiological explanation.
David Eriksson   +2 more
doaj   +1 more source

Curvature-driven feedback on aggregation-diffusion of proteins in lipid bilayers [PDF]

open access: yesarXiv, 2021
Membrane bending is an extensively studied problem from both modeling and experimental perspectives because of the wide implications of curvature generation in cell biology. Many of the curvature generating aspects in membranes can be attributed to interactions between proteins and membranes.
arxiv  

Effects of guanidine on synaptic transmission in the spinal cord of the frog [PDF]

open access: yes, 1977
The effects of guanidine on motoneurons of the isolated frog spinal cord were studied by adding the drug to the solution bathing the cord during intracellular recording. Guanidine (5·10–4 M) did not alter the membrane potential of motoneurons.
A. K�hner   +19 more
core   +1 more source

Dependence of serosal membrane potential on mucosal membrane potential in toad urinary bladder

open access: yesBiophysical Journal, 1975
Ussing's model for sodium transport across epithelia assumes the existence of two barriers in series; the outer barrier behaves as a sodium electrode and the inner barrier as a potassium electrode (Koefoed-Johnsen and Ussing, 1958); furthermore, these membranes are supposed to be independent of one another.
A.L. Finn, L. Reuss
openaire   +3 more sources

Insights into the renal pathophysiology in Hermansky‐Pudlak syndrome‐1 from urinary extracellular vesicle proteomics and a new mouse model

open access: yesFEBS Letters, EarlyView.
Hermansky‐Pudlak syndrome type 1 (HPS‐1) is a rare, autosomal recessive disorder with poorly understood renal involvement. Urinary extracellular vesicle (uEV) proteomics and a novel Hps1 mouse model reveal mitochondrial abnormalities and lipid accumulation in HPS‐1 kidney proximal tubule cells. Serum ApoA1 correlates with kidney function in our patient
Dawn M. Maynard   +7 more
wiley   +1 more source

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