Results 91 to 100 of about 67,991 (292)

Alterations in Brain Network Topology and Structural-Functional Connectome Coupling Relate to Cognitive Impairment

open access: yesFrontiers in Aging Neuroscience, 2018
According to the network-based neurodegeneration hypothesis, neurodegenerative diseases target specific large-scale neural networks, such as the default mode network, and may propagate along the structural and functional connections within and between ...
Juan Wang   +18 more
doaj   +1 more source

Quantum Monte Carlo study of quasi-one-dimensional Bose gases

open access: yes, 2003
We study the behavior of quasi-one-dimensional (quasi-1d) Bose gases by Monte Carlo techniques, i.e., by the variational Monte Carlo, the diffusion Monte Carlo, and the fixed-node diffusion Monte Carlo technique.
Astrakharchik G E   +22 more
core   +1 more source

Long‐Term Quality of Life in 1777 Persons With Hodgkin Lymphoma and 6166 Matched Comparators

open access: yesAmerican Journal of Hematology, EarlyView.
ABSTRACT Survival has improved substantially for patients with Hodgkin lymphoma (HL), but long‐term quality of life (QoL) remains incompletely understood. This was a Danish, nationwide, cross‐sectional study of QoL among persons with a diagnosis of HL matched 1:10 to general population comparators.
Sissel Johanne Godtfredsen   +13 more
wiley   +1 more source

Nodal Domain Statistics for Quantum Maps, Percolation and SLE

open access: yes, 2006
We develop a percolation model for nodal domains in the eigenvectors of quantum chaotic torus maps. Our model follows directly from the assumption that the quantum maps are described by random matrix theory.
I. G. Williams   +3 more
core   +1 more source

Research progress on biomarkers of traumatic brain injury

open access: yesAnimal Models and Experimental Medicine, EarlyView.
Traumatic brain injury: From primary insult to secondary neuroinflammation and degeneration. Abstract Traumatic brain injury (TBI) is a common disorder of the nervous system and has become a leading cause of death and disability worldwide, imposing a substantial burden on patients and their social circles. Its main symptoms include dyskinesia, language
Xuting Shen   +8 more
wiley   +1 more source

Apparent diffusion coefficient for discriminating metastatic lymph nodes in patients with squamous cell carcinoma of the head and neck

open access: yesDiagnostic and Interventional Radiology, 2015
PURPOSEWe aimed to evaluate the apparent diffusion coefficient (ADC) values of metastatic lymph nodes in patients with squamous cell carcinoma (SCC) of the head and neck.METHODSPatients with metastatic lymph nodes underwent 1.5 Tesla diffusion-weighted ...
Yeliz Pekçevik   +2 more
doaj   +1 more source

Generalization of Clausius-Mossotti approximation in application to short-time transport properties of suspensions

open access: yes, 2015
In 1983 Felderhof, Ford and Cohen gave microscopic explanation of the famous Clausius-Mossotti formula for the dielectric constant of nonpolar dielectric.
Makuch, Karol
core   +1 more source

Benzo[cd]azulenyl: A Structural Isomer of Phenalenyl—Synthesis and Properties of Its Tri‐tert‐butyl‐substituted Derivative and Formation of a Thermal‐ and Photoresponsive σ‐Dimer

open access: yesChemistry – A European Journal, EarlyView.
Benzo[cd]azulenyl, a nonalternant isomer of phenalenyl, is identified as a new member of the nonalternant hydrocarbon radical family. The tri‐tert‐butyl substituted derivative forms a stable σ‐dimer in the solid state. Upon exposure to external stimuli such as light and heat, the σ‐bond of the dimer dissociates, producing the monomeric radical.
Kaho Takeuchi   +2 more
wiley   +1 more source

Interplay of Orbital Overlap and Exciton Coupling in the Optical Properties of Adamantylethynyl‐Substituted Pyrene Molecular Crystals

open access: yesChemistry – A European Journal, EarlyView.
Sterically shielded adamantylethynyl‐substituted pyrenes form quasi‐one‐dimensional π‐stacks that enable direct quantification of solution‐to‐crystal spectral shifts. The optical response is dominated by band dispersion arising from frontier crystal orbitals, while excitonic contributions are secondary.
Benedikt Herbert, Kazutaka Shoyama
wiley   +1 more source

Quasiparticle transport and localization in high-T_c superconductors

open access: yes, 1998
We present a theory of the effects of impurity scattering in d_{x^2-y^2} superconductors and their quantum disordered counterparts, based on a non-linear sigma model formulation.
A. Altland   +18 more
core   +1 more source

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