Results 31 to 40 of about 2,655,581 (286)

Random Rectangular Graphs [PDF]

, 2015
A generalization of the random geometric graph (RGG) model is proposed by considering a set of points uniformly and independently distributed on a rectangle of unit area instead of on a unit square [0,1]^2.
Estrada, Ernesto, Sheerin, Matthew
core   +2 more sources

Fully automated segmentation of the cervical cord from T1-weighted MRI using PropSeg: Application to multiple sclerosis

NeuroImage: Clinical, 2016
Spinal cord (SC) atrophy, i.e. a reduction in the SC cross-sectional area (CSA) over time, can be measured by means of image segmentation using magnetic resonance imaging (MRI).
Marios C. Yiannakas, Ahmed M. Mustafa, Benjamin De Leener, Hugh Kearney, Carmen Tur, Daniel R. Altmann, Floriana De Angelis, Domenico Plantone, Olga Ciccarelli, David H. Miller, Julien Cohen-Adad, Claudia A.M. Gandini Wheeler-Kingshott   +11 more
doaj   +1 more source

Spatial patterns of brain lesions assessed through covariance estimations of lesional voxels in multiple Sclerosis: The SPACE-MS technique

NeuroImage: Clinical, 2022
Predicting disability in progressive multiple sclerosis (MS) is extremely challenging. Although there is some evidence that the spatial distribution of white matter (WM) lesions may play a role in disability accumulation, the lack of well-established ...
Carmen Tur, Francesco Grussu, Floriana De Angelis, Ferran Prados, Baris Kanber, Alberto Calvi, Arman Eshaghi, Thalis Charalambous, Rosa Cortese, Declan T. Chard, Jeremy Chataway, Alan J. Thompson, Olga Ciccarelli, Claudia A.M. Gandini Wheeler-Kingshott   +13 more
doaj   +1 more source

The effects of deep brain stimulation of the pedunculopontine nucleus on cognition in Parkinson's disease and Progressive Supranuclear Palsy

Clinical Parkinsonism & Related Disorders, 2019
Deep brain stimulation (DBS) of the pedunculopontine nucleus (PPN) is a relatively new treatment approach for the axial symptoms of Parkinson's disease (PD) and Progressive Supranuclear Palsy (PSP).
Friederike Leimbach, James Gratwicke, Tom Foltynie, Patricia Limousin, Ludvic Zrinzo, Marjan Jahanshahi   +5 more
doaj   +1 more source

Packing 10 or 11 Unit Squares in a Square [PDF]

The Electronic Journal of Combinatorics, 2003
Let $s(n)$ be the side of the smallest square into which it is possible pack $n$ unit squares. We show that $s(10)=3+\sqrt{1\over 2}\approx3.707$ and that $s(11)\geq2+2\sqrt{4\over 5}\approx3.789$. We also show that an optimal packing of $11$ unit squares with orientations limited to $0$ degrees or $45$ degrees has side $2+2\sqrt{8\over 9}\approx3 ...
openaire   +2 more sources

Remyelination varies between and within lesions in multiple sclerosis following bexarotene

Annals of Clinical and Translational Neurology, 2022
Objective In multiple sclerosis chronic demyelination is associated with axonal loss, and ultimately contributes to irreversible progressive disability. Enhancing remyelination may slow, or even reverse, disability. We recently trialled bexarotene versus
J. William L. Brown, Ferran Prados, Daniel R. Altmann, Baris Kanber, Jonathan Stutters, Nick G. Cunniffe, Joanne L. Jones, Zoya G. Georgieva, Edward J. Needham, Cyrus Daruwalla, Claudia Gandini Wheeler‐Kingshott, Peter Connick, Siddharthan Chandran, Robin Franklin, David MacManus, Rebecca Samson, Alasdair Coles, Declan Chard   +17 more
doaj   +1 more source

On local structures of cubicity 2 graphs

, 2016
A 2-stab unit interval graph (2SUIG) is an axes-parallel unit square intersection graph where the unit squares intersect either of the two fixed lines parallel to the $X$-axis, distance $1 + \epsilon$ ($0 < \epsilon < 1$) apart.
BN Clark, C Lekkeikerker, DB West, ER Scheinerman, H Imai, J Correa, J Kratochvíl, SK Bhore, SN Bhatt   +8 more
core   +1 more source

Expression Pattern of a Mini Human PrP Gene Promoter in Transgenic Mice

Neurobiology of Disease, 2002
The prion protein is central to the pathogenesis of prion diseases, although its exact function remains unclear. Although transgenic mice have been widely utilised in prion research, their PrP expression patterns have not been characterised in detail. We
E.A. Asante, I. Gowland, J.M. Linehan, S.P. Mahal, J. Collinge   +4 more
doaj   +1 more source

Blood Oxygenation Level-Dependent Response to Multiple Grip Forces in Multiple Sclerosis: Going Beyond the Main Effect of Movement in Brodmann Area 4a and 4p

Frontiers in Cellular Neuroscience, 2021
This study highlights the importance of looking beyond the main effect of movement to study alterations in functional response in the presence of central nervous system pathologies such as multiple sclerosis (MS).
Adnan A. S. Alahmadi, Adnan A. S. Alahmadi, Matteo Pardini, Matteo Pardini, Matteo Pardini, Rebecca S. Samson, Egidio D’Angelo, Egidio D’Angelo, Karl J. Friston, Ahmed T. Toosy, Claudia A. M. Gandini Wheeler-Kingshott, Claudia A. M. Gandini Wheeler-Kingshott, Claudia A. M. Gandini Wheeler-Kingshott   +12 more
doaj   +1 more source

Translative Packing of Unit Squares into Squares

International Journal of Mathematics and Mathematical Sciences, 2012
Summary: Every collection of \(n\) (arbitrary-oriented) unit squares admits a translative packing into any square of side length \(\sqrt{2.5 \cdot n}\).
openaire   +2 more sources