Results 61 to 70 of about 201,576 (288)

Structure–Function Decoupling of the Sensorimotor and Default Mode Networks in Black Americans With MS

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background and Objectives Multiple sclerosis (MS) exhibits racially disparate rates of disease progression. Black people with MS (B‐PwMS) experience a more severe disease course than non‐Hispanic White people with MS (NHW‐PwMS). Here we investigated structural and functional connectivity as well as structure–function decoupling in the ...
Emilio Cipriano, Giacomo Boffa, Maria Petracca, Marta Ponzano, Nicole Graziano, Claire Wigley, Claire Riley, Jonathan Howard, Pietro Bontempi, Sylvia Klineova, Fred Lublin, Matilde Inglese   +11 more
wiley   +1 more source

Large Diffeomorphisms in (2+1)-Quantum Gravity on the Torus

, 1995
The issue of how to deal with the modular transformations -- large diffeomorphisms -- in (2+1)-quantum gravity on the torus is discussed. I study the Chern-Simons/connection representation and show that the behavior of the modular transformations on the ...
A. Anderson, A. Ashtekar, A. Ashtekar, A. Ashtekar, A. Galindo, A. Hosoya, A. Hosoya, D. Giulini, D. Giulini, D. M. Marolf, E. Witten, G. W. Mackey, H. Maass, H. Maass, J. E. Nelson, J. E. Nelson, J. Louko, K. Ezawa, K. Ezawa, P. Peldán, Peter Peldán, R. Jackiw, S. Carlip, S. Carlip, S. Carlip, T. Miyake, V. Moncrief, V. Moncrief, W. G. Unruh, W. Sierpinski, Y. Fujiwara   +30 more
core   +2 more sources

3D‐Printed Serial Snap‐Through Architectures for Programmable Mechanical Response

Advanced Engineering Materials, EarlyView.
A serial snap‐through architecture is realized using compact 3D‐printed von Mises truss units arranged in a staged cascade. Their geometry and boundary conditions program multistage mechanical responses with plateaux and re‐hardening regimes. An inverted‐compliance model predicts these behaviors and enables analytical design of programmable force ...
Filipe A. Santos
wiley   +1 more source

On a new nonlinear convex structure

AIMS Mathematics
In this work we start from near vector spaces, which we endow with some additional properties that allow convex analysis. The seminormed structure used here will also be improved by adding properties such as the null condition and null equality, thus ...
Andreea Bejenaru, Mihai Postolache
doaj   +1 more source

A Distribution Power Electronic Transformer with MMC

Applied Sciences, 2018
This paper deals with a Power Electronic Transformer (PET) topology for a 3-phase AC distribution grid. In the discussed topology, a Modular Multilevel Converter (MMC) and a Full-Bridge converter are employed for the medium voltage (MV) and the low ...
Gianluca Brando, Biagio Bova, Andrea Cervone, Adolfo Dannier, Andrea Del Pizzo   +4 more
doaj   +1 more source

A time-extended Hamiltonian formalism

, 1998
A Poisson structure on the time-extended space R x M is shown to be appropriate for a Hamiltonian formalism in which time is no more a privileged variable and no a priori geometry is assumed on the space M of motions.
Asorey, Chakravarty, Darboux, Echeverria Enriquez, Gümral, Gümral, Gümral, Halphen, Hamoui, Hasan Gümral, Hojman, Kirillov, Lichnerowicz, Magri, Perlick, Sardanashvily, Weinstein, Weinstein   +17 more
core   +1 more source

Lipid Nanoparticles for the Delivery of CRISPR/Cas9 Machinery to Enable Site‐Specific Integration of CFTR and Mutation‐Agnostic Disease Rescue

Advanced Functional Materials, EarlyView.
Lipid nanoparticles (LNPs) are optimized to co‐deliver Cas9‐encoding messenger RNA (mRNA), a single guide RNA (sgRNA) targeting the endogenous cystic fibrosis transmembrane conductance regulator (CFTR) gene, and homologous linear double‐stranded donor DNA (ldsDNA) templates encoding CFTR.
Ruth A. Foley, Paul G. Ayoub, Vrishti Sinha, Colin Juett, Alicia Sanoyca, Emily C. Duggan, Lindsay E. Lathrop, Priyanka Bhatt, Kevin Coote, Beate Illek, Brigitte N. Gomperts, Donald B. Kohn, Steven J. Jonas   +12 more
wiley   +1 more source

Internal Levin-Wen models

SciPost Physics
Levin--Wen models are a class of two-dimensional lattice spin models with a Hamiltonian that is a sum of commuting projectors, which describe topological phases of matter related to Drinfeld centres.
Vincentas Mulevičius, Ingo Runkel, Thomas Voß
doaj   +1 more source

A Comparison of Modulation Techniques for Modular Multilevel Converters

Energies, 2016
This work presents a comparison of three different modulation techniques applied to modular multilevel converters (MMCs). The three modulation strategies studied in this paper are the phase-shifted sinusoidal pulse width modulation (PS-SPWM), the space ...
Miguel Moranchel, Francisco Huerta, Inés Sanz, Emilio Bueno, Francisco J. Rodríguez   +4 more
doaj   +1 more source

Volume and topological invariants of quantum many-body systems

Physical Review Research, 2020
Quantum many-body systems described by Lagrangian path integrals can realize many different topological phases of matter. One of the most important problems in condensed-matter physics is to extract topological invariants from the Lagrangian and to ...
Xiao-Gang Wen, Zhenghan Wang
doaj   +1 more source