Results 101 to 110 of about 835,261 (172)

Automatic brain tissue segmentation in fetal MRI using convolutional neural networks [PDF]

open access: yesarXiv, 2019
MR images of fetuses allow clinicians to detect brain abnormalities in an early stage of development. The cornerstone of volumetric and morphologic analysis in fetal MRI is segmentation of the fetal brain into different tissue classes. Manual segmentation is cumbersome and time consuming, hence automatic segmentation could substantially simplify the ...
arxiv  

Nox2 redox signaling maintains essential cell populations in the brain. [PDF]

open access: yes, 2011
Reactive oxygen species (ROS) are conventionally classified as toxic consequences of aerobic life, and the brain is particularly susceptible to ROS-induced oxidative stress and damage owing to its high energy and oxygen demands.
Chang, Christopher J   +4 more
core  

State-Dependent Subnetworks of Parvalbumin-Expressing Interneurons in Neocortex. [PDF]

open access: yes, 2019
Brain state determines patterns of spiking output that underlie behavior. In neocortex, brain state is reflected in the spontaneous activity of the network, which is regulated in part by neuromodulatory input from the brain stem and by local inhibition ...
Garcia-Junco-Clemente, Pablo   +3 more
core   +1 more source

Analyzing Brain Activity During Learning Tasks with EEG and Machine Learning [PDF]

open access: yesarXiv
This study aimed to analyze brain activity during various STEM activities, exploring the feasibility of classifying between different tasks. EEG brain data from twenty subjects engaged in five cognitive tasks were collected and segmented into 4-second clips. Power spectral densities of brain frequency waves were then analyzed.
arxiv  

Transcriptome analysis of chicken ES, blastodermal and germ cells reveals that chick ES cells are equivalent to mouse ES cells rather than EpiSC

open access: yesStem Cell Research, 2015
Pluripotent Embryonic Stem cell (ESC) lines can be derived from a variety of sources. Mouse lines derived from the early blastocyst and from primordial germ cells (PGCs) can contribute to all somatic lineages and to the germ line, whereas cells from ...
Christian Jean   +11 more
doaj   +1 more source

Effects and side-effects of plasmonic photothermal therapy in brain tissue [PDF]

open access: yesarXiv, 2019
Heat generated from plasmonic nanoparticles can be utilized in plasmonic photothermal therapy. A combination of near-infrared laser and metallic nanoparticles are compelling for the treatment of brain cancer, due to their efficient light-to-heat conversion and bio-compatibility.
arxiv  

Strain-specific variations in the culture of chicken primordial germ cells

open access: yesScientific Reports
Efficient long-term cultivation of chicken primordial germ cells (cPGCs) is essential for various avian research and biotechnology applications. Our study aimed to address the challenge of inconsistent culture success by investigating strain-specific ...
Sara Yousefi Taemeh   +8 more
doaj   +1 more source

Mitotic Spindle Asymmetry: A Wnt/PCP-Regulated Mechanism Generating Asymmetrical Division in Cortical Precursors

open access: yesCell Reports, 2014
The regulation of asymmetric cell division (ACD) during corticogenesis is incompletely understood. We document that spindle-size asymmetry (SSA) between the two poles occurs during corticogenesis and parallels ACD.
Delphine Delaunay   +4 more
doaj   +1 more source

Electrophysiological measurement of human auditory function [PDF]

open access: yes
Contingent negative variations in the presence and amplitudes of brain potentials evoked by sound are considered. Evidence is produced that the evoked brain stem response to auditory stimuli is clearly related to brain events associated with cognitive ...
Galambos, R.
core   +1 more source

BOrg: A Brain Organoid-Based Mitosis Dataset for Automatic Analysis of Brain Diseases [PDF]

open access: yesarXiv
Recent advances have enabled the study of human brain development using brain organoids derived from stem cells. Quantifying cellular processes like mitosis in these organoids offers insights into neurodevelopmental disorders, but the manual analysis is time-consuming, and existing datasets lack specific details for brain organoid studies. We introduce
arxiv  

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