Results 1 to 10 of about 1,932,034 (233)

Spontaneous formation of chaotic protrusions in a polymerizing active gel layer [PDF]

open access: yes, 2019
The actin cortex is a thin layer of actin filaments and myosin motors beneath the outer membrane of animal cells. It determines the cells' mechanical properties and forms important morphological structures. Physical descriptions of the cortex as a contractile active gel suggest that these structures can result from dynamic instabilities.
Kruse, K., Levernier, N.
arxiv   +3 more sources

A multi-modal parcellation of human cerebral cortex

open access: yesNature, 2016
Understanding the amazingly complex human cerebral cortex requires a map (or parcellation) of its major subdivisions, known as cortical areas. Making an accurate areal map has been a century-old objective in neuroscience.
Timothy S Coalson   +2 more
exaly   +2 more sources

Conserved cell types with divergent features in human versus mouse cortex

open access: yesNature, 2019
Elucidating the cellular architecture of the human cerebral cortex is central to understanding our cognitive abilities and susceptibility to disease. Here we used single-nucleus RNA-sequencing analysis to perform a comprehensive study of cell types in ...
Aaron Oldre   +2 more
exaly   +2 more sources

Development of visual response selectivity in cortical GABAergic interneurons

open access: yesNature Communications, 2022
Excitatory neurons in the carnivore and primate visual cortex display orientation selectivity arranged in a modular fashion before the onset of visual experience, but the developmental timeline for visual response selectivity of inhibitory neurons is ...
Jeremy T. Chang, David Fitzpatrick
doaj   +1 more source

Profiles of learner readers and their early literacy skills and environmental predictors: a large-scale longitudinal study from preschool to grade 1

open access: yesFrontiers in Education, 2023
As part of the French national cohort ELFE, a two-year longitudinal study was conducted and children’s literacy skills were assessed twice (N = 2,767), namely at the end of preschool (t1) and at the end of Grade 1 (t2). At t1, letter-name knowledge (LNK),
Jean Ecalle   +6 more
doaj   +1 more source

The High Potential of Computer-Based Reading Assessment

open access: yesCanadian Journal of Learning and Technology, 2020
The aim of this study is to propose advantages provided by computerized tools when assessing reading ability. A new computer-based reading assessment evaluating both word reading and reading comprehension processes was administered to 687 children in ...
Pauline Auphan   +2 more
doaj   +1 more source

“Vitamin D Deficiency Is More Common in Women with Autoimmune Thyroiditis: A Retrospective Study”

open access: yesInternational Journal of Endocrinology, 2021
Background. Vitamin D is a hormone that is mainly produced in the skin upon ultraviolet B radiation exposure and has important influence on various organs. In recent years, data have been collected that vitamin D deficiency plays an important role in the
Nino Turashvili   +2 more
doaj   +1 more source

Aberrant survival of hippocampal Cajal-Retzius cells leads to memory deficits, gamma rhythmopathies and susceptibility to seizures in adult mice

open access: yesNature Communications, 2023
Cajal-Retzius neurons number drastically decreases during postnatal life. Here, authors show that their programmed death is required for the construction of functional hippocampal circuits and memory with aberrant survival leading to gamma rhythmopathies
Martina Riva   +20 more
doaj   +1 more source

Orbitofrontal cortex volume and brain reward response in obesity. [PDF]

open access: yes, 2015
Background/objectivesWhat drives overconsumption of food is poorly understood. Alterations in brain structure and function could contribute to increased food seeking.
Brown, MS   +6 more
core   +6 more sources

Point-light biological motion perception activates human premotor cortex [PDF]

open access: yes, 2004
Motion cues can be surprisingly powerful in defining objects and events. Specifically, a handful of point-lights attached to the joints of a human actor will evoke a vivid percept of action when the body is in motion.
Ayse Pinar Saygin   +5 more
core   +2 more sources

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