Results 91 to 100 of about 6,105,349 (242)

Investigating Brain Dynamics and Connectivity with Functional MRI

Proceedings of the 2004 Intelligent Sensors, Sensor Networks and Information Processing Conference, 2004., 2005
Functional Magnetic Resonance Imaging (fMRI) scans provide a record of ongoing neural processing through the measurement of changes in regional levels of blood oxygenation. While subjects are resting, fMRI has revealed networks of brain regions exhibiting synchronised 0.02 - 0.12 Hz fluctuations in spontaneous, low frequency brain activity.
Duff, E, Egan, G, Cunnington, R, Mareels, I, Wang, B, Fox, P, Xiong, J   +6 more
openaire   +3 more sources

Classification of autism spectrum disorder using supervised learning of brain connectivity measures extracted from synchrostates

, 2014
Objective. The paper investigates the presence of autism using the functional brain connectivity measures derived from electro-encephalogram (EEG) of children during face perception tasks. Approach.
Oprescu, Ioana-Anastasia, Das, Saptarshi, Maharatna, Koushik, Sicca, Federico, Jamal, Wasifa, Apicella, Fabio   +5 more
core   +1 more source

Characterizing Whole Brain Temporal Variation of Functional Connectivity via Zero and First Order Derivatives of Sliding Window Correlations

Frontiers in Neuroscience, 2019
Brain functional connectivity has been shown to change over time during resting state fMRI experiments. Close examination of temporal changes have revealed a small set of whole-brain connectivity patterns called dynamic states. Dynamic functional network
Flor A. Espinoza, Flor A. Espinoza, Victor M. Vergara, Victor M. Vergara, Eswar Damaraju, Eswar Damaraju, Kyle G. Henke, Kyle G. Henke, Ashkan Faghiri, Ashkan Faghiri, Ashkan Faghiri, Jessica A. Turner, Jessica A. Turner, Aysenil A. Belger, Judith M. Ford, Judith M. Ford, Sarah C. McEwen, Sarah C. McEwen, Daniel H. Mathalon, Daniel H. Mathalon, Bryon A. Mueller, Steven G. Potkin, Adrian Preda, Jatin G. Vaidya, Theo G. M. van Erp, Theo G. M. van Erp, Vince D. Calhoun, Vince D. Calhoun, Vince D. Calhoun, Vince D. Calhoun   +29 more
doaj   +1 more source

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

Advanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara, Vincent Rat, Quentin Dubreuil, Patrice Valorge, Simon Goutier, Alain Denoirjean, Olivier Messe, Céline Ruelle, Jean‐Philippe Poli   +8 more
wiley   +1 more source

Scale-free network with Boolean dynamics as a function of connectivity [PDF]

Physical Review E, 2004
8 pages, 7 Postscript; to appear in Phys.
Silva, A. Castro e, da Silva, J. Kamphorst Leal, Mendes, J. F. F.   +2 more
openaire   +3 more sources

Modular Critical Element Recycling Platform Using a Nanoporous Additively Manufactured Gyroid

Advanced Engineering Materials, EarlyView.
A modular recycling platform integrates 3D‐printed nanoporous gyroid structures to enable efficient critical element recovery. This system utilizes a hierarchical architecture, combining macroscopic channels with polymerization‐induced nanoscale porosity. By systematically tuning structural wall thickness and resin formulation, the platform achieves an
Xiangyu Gao, Keldy Mason, Mert Gülçür, Rachel Paddock‐Lamb, Prince Alvin Fofanah, Zachariah A. Page, Michael Cullinan   +6 more
wiley   +1 more source

Towards a statistical test for functional connectivity dynamics

NeuroImage, 2015
Sliding-window correlation is an emerging method for mapping time-resolved, resting-state functional connectivity. To avoid mapping spurious connectivity fluctuations (false positives), Leonardi and Van De Ville recently recommended choosing a window length exceeding the longest wavelength composing the BOLD signal, usually assumed to be ~100s.
Andrew Zalesky, Michael Breakspear
openaire   +2 more sources

Molecular Dynamics Studies of Shape Memory Polymers: From Bead–Spring Models to Atomistic Simulations

Advanced Engineering Materials, EarlyView.
Coarse‐grained (left) and atomistic (right) models of the shape memory polymer ESTANE ETE 75DT3 are shown schematically. The two representations bridge molecular detail and mesoscopic description. Both models capture shape memory behavior, linking segmental mobility and conformational relaxation of anisotropic chains to macroscopic recovery, and ...
Fathollah Varnik
wiley   +1 more source

Dynamic functional connectivity of neurocognitive networks in children

Human Brain Mapping, 2016
AbstractThe human brain is highly dynamic, supporting a remarkable range of cognitive abilities that emerge over the course of development. While flexible and dynamic coordination between neural systems is firmly established for children, our understanding of brain functional organization in early life has been built largely on the implicit assumption ...
Hilary A, Marusak, Vince D, Calhoun, Suzanne, Brown, Laura M, Crespo, Kelsey, Sala-Hamrick, Ian H, Gotlib, Moriah E, Thomason   +6 more
openaire   +3 more sources

Reproducibility of functional connectivity and graph measures based on the Phase Lag Index (PLI) and weighted Phase Lag Index (wPLI) derived from high resolution EEG [PDF]

, 2014
Functional connectivity (FC) and graph measures provide powerful means to analyze complex networks. The current study determines the inter-subject-variability using the coefficient of variation (CoV) and long-term test-retest-reliability (TRT) using the ...
Florian Hatz, Christian Schindler (71594), Hardmeier, M., Cornelis Jan Stam (640429), Fuhr, Peter, Martin Hardmeier, Habib Bousleiman, Christian Schindler, Peter Fuhr, Hardmeier, Martin, Peter Fuhr (640430), Stam, C.J., Stam, Cornelis Jan, Habib Bousleiman (640428), Hatz, F., Fuhr, P., Martin Hardmeier (146865), Schindler, Christian, Cornelis Jan Stam, Schindler, C., Bousleiman, Habib, Florian Hatz (640427), Hatz, Florian, Bousleiman, H.   +23 more
core   +1 more source