Results 81 to 90 of about 1,757,364 (306)

Biophysical approaches for studying viral entry

open access: yesFEBS Letters, EarlyView.
Viruses infect all living organisms and have been responsible for major epidemics and pandemics. Their ongoing evolutionary battle with host defenses creates a constant need for improved tools to study viral behavior. Advancing methods to probe viral attachment, fusion, and genome release deepen our understanding of how infections begin and support the
Inbar Yosibash, Raya Sorkin
wiley   +1 more source

The human gut microbiome across the life course

open access: yesFEBS Letters, EarlyView.
Despite significant individual variation and continuous change throughout life, the human gut microbiome follows some life stage‐specific trends. This article provides a brief overview of how gut microbiome composition shifts across different phases of life. Created in BioRender. Özkurt, E. (2026) https://BioRender.com/8q4nrnc.
Alise J. Ponsero   +4 more
wiley   +1 more source

Contrast sensitivity revealed by microsaccades

open access: yesJournal of Vision, 2015
Microsaccades are small rapid and involuntary eye movements that occur during fixation in an apparently stochastic manner. They are known to be inhibited in response to sensory transients, with a time course that depends on the stimulus parameters and attention. However, the temporal precision of their onsets and the degree to which they can be used to
Yoram S, Bonneh, Yael, Adini, Uri, Polat
openaire   +2 more sources

Modulation of Homer1 EVH1 domain internal dynamics by putative autism‐associated mutations

open access: yesFEBS Letters, EarlyView.
The putative autism‐associated M65I and S97L variants of the EVH1 domain of the postsynaptic scaffold protein Homer1 do not exhibit substantial changes in their overall structure or partner binding. Both of them, but especially the M65I variant, show altered internal dynamics relative to the wild‐type domain on the μs‐ms timescale, indicated by the ...
Fanni Farkas   +6 more
wiley   +1 more source

Exercise does not increase contrast sensitivity

open access: yes, 1997
The contrast sensitivity of 19 healthy normal subjects was measured before and immediately after 10 minutes of controlled exercise on an exercise bicycle.
Wood, Joanne M.   +2 more
core  

Evaluation and Comparison of Contrast Sensitivity in Patients with Zaraccom Ultraflex or F260 Intraocular Lens Inserted

open access: yes, 2011
Purpose: In this study, we evaluated the optic performance of Zaraccom UF intraocular lens (IOL) by comparing the contrast sensitivity of IOLs in photopic and mesopic lighting conditions in patients who were operated for cataract and inserted Zaraccom ...
Mustafa ‹lker Toker   +11 more
core   +1 more source

Predicting contrast sensitivity functions with digital twins

open access: yesScientific Reports
We developed and validated digital twins (DTs) for contrast sensitivity function (CSF) across 12 prediction tasks using a data-driven, generative model approach based on a hierarchical Bayesian model (HBM).
Yukai Zhao   +3 more
doaj   +1 more source

An unexpected alternative viologen electron mediator site in tungsten‐containing formate dehydrogenase

open access: yesFEBS Letters, EarlyView.
An unexpected alternative interaction site for ethyl viologen was identified in formate dehydrogenase 1 from Methylorubrum extorquens. Combined mutagenesis, kinetic analysis, and docking revealed that aromatic residues near an iron–sulfur cluster enable flavin mononucleotide‐independent electron transfer, offering a framework for engineering improved ...
Eleni G. Poloniataki, Yong Hwan Kim
wiley   +1 more source

On the calculation of optical performance factors from vertebrate spatial contrast sensitivity

open access: yes, 2007
A novel technique for calculating the visual optical modulation transfer function (OMTF) is described. The technique involves application of the Rovamo–Barten model of spatial vision to measured contrast sensitivity data.
Jarvis, John R.   +5 more
core   +1 more source

Cell geometry and membrane protein crowding constrain Escherichia coli growth rate, overflow metabolism, respiration, and maintenance energy

open access: yesFEBS Letters, EarlyView.
The physical dimensions and shape of bacterial cells define the surface area available to acquire nutrients and the volume available for synthesizing proteins and DNA. Here, we use computational systems biology to decode the importance of cell geometry as a major determinant of prokaryotic phenotype, including growth rate and metabolic efficiency. This
Ross P. Carlson   +6 more
wiley   +1 more source

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