Results 21 to 30 of about 1,567,488 (349)
Better than Rician: modelling millimetre wave channels as two-wave with diffuse power
EURASIP Journal on Wireless Communications and Networking, 2019 This contribution provides experimental evidence for the two-wave with diffuse power (TWDP) fading model. We have conducted two indoor millimetre wave measurement campaigns with directive horn antennas at both link ends.
Erich Zöchmann +6 more
doaj +1 more source
Detection of brain functional-connectivity difference in post-stroke patients using group-level covariance modeling [PDF]
, 2010 Functional brain connectivity, as revealed through distant correlations in the signals measured by functional Magnetic Resonance Imaging (fMRI), is a promising source of biomarkers of brain pathologies.
A. Vanhaudenhuyse +9 more
core +5 more sources
Group connectivity under 3‐edge‐connectivity [PDF]
Journal of Graph Theory, 2020 AbstractLet be two distinct finite Abelian groups with . A fundamental theorem of Tutte shows that a graph admits a nowhere‐zero ‐flow if and only if it admits a nowhere‐zero ‐flow. Jaeger et al in 1992 introduced group connectivity as an extension of flow theory, and they asked whether such a relation holds for group connectivity analogy.
Miaomiao Han +3 more
openaire +3 more sources
Early affective changes and increased connectivity in preclinical Alzheimer's disease. [PDF]
, 2018 IntroductionAffective changes precede cognitive decline in mild Alzheimer's disease and may relate to increased connectivity in a "salience network" attuned to emotionally significant stimuli.
Bilgel, Murat +7 more
core +1 more source
Frontiers in Human Neuroscience, 2013 Anatomical, morphological and histological data have consistently shown that the cingulate cortex can be divided into four main regions. However, less is known about parcellations of the cingulate cortex when involved in active tasks.
Diana M.E. Torta +7 more
doaj +1 more source
Frontiers in Neuroscience, 2021 ObjectiveTo characterize microstructural white matter changes related to relapsing-remitting multiple sclerosis using advanced diffusion MRI modeling and tractography.
Ann-Marie Beaudoin +6 more
doaj +1 more source
On the Quality of Wireless Network Connectivity [PDF]
, 2011 Despite intensive research in the area of network connectivity, there is an important category of problems that remain unsolved: how to measure the quality of connectivity of a wireless multi-hop network which has a realistic number of nodes, not ...
Dasgupta, Soura, Mao, Guoqiang
core +1 more source
State-dependent changes of connectivity patterns and functional brain network topology in Autism Spectrum Disorder [PDF]
, 2012 Anatomical and functional brain studies have converged to the hypothesis that Autism Spectrum Disorders (ASD) are associated with atypical connectivity.
Barttfeld, Pablo +6 more
core +2 more sources
Nature Communications, 2019 Many functions of the human brain are lateralised i.e. associated more strongly with either the left or the right hemisphere of the brain. Here, the authors report the first complete map of functional asymmetries in the human brain, and its relationship ...
Vyacheslav R. Karolis +2 more
doaj +1 more source
Sensors, 2021 Parkinson’s disease (PD) is the second most common neurodegenerative disease in the elderly population. Similarly to other neurodegenerative diseases, the early diagnosis of PD is quite difficult.
Fabrizio Vecchio +8 more
doaj +1 more source