Results 61 to 70 of about 51,997 (309)

Molecular dynamics simulations of positively selected codons in FcγRI reveal novel biochemical binding properties

open access: yesFEBS Open Bio, EarlyView.
Evolutionary analysis across 32 placental mammals identified positive selection at residues H148 and W149 in the immune receptor FcγR1. Ancestral reconstruction combined with molecular dynamics simulations reveals how these mutations may influence receptor structure and dynamics, providing insight into the evolution of antibody recognition and immune ...
David A. Young   +7 more
wiley   +1 more source

Ad-Hoc Lanzhou Index

open access: yesMathematics, 2023
This paper initiates the study of the mathematical aspects of the ad-hoc Lanzhou index. If G is a graph with the vertex set {x1,…,xn}, then the ad-hoc Lanzhou index of G is defined by Lz˜(G)=∑i=1ndi(n−1−di)2, where di represents the degree of the vertex ...
Akbar Ali   +3 more
doaj   +1 more source

Dual native G‐quadruplex folding is associated with chromatin looping at the MYC locus

open access: yesFEBS Open Bio, EarlyView.
BG4‐detectable G‐quadruplex (G4) in HaCaT and NHEK keratinocytes identified folded and unfolded G4s enriched at promoters/TSSs and active enhancers, whereas unfolded G4s also overlapped weak/poised enhancers. At MYC–PVT1, 3C‐qPCR detected enhancer–promoter looping only when G4s were simultaneously folded at both regulatory elements under native ...
Dieila Giomo de Lima   +7 more
wiley   +1 more source

Topological events on wave dislocation lines: birth and death of small loops, and reconnection [PDF]

open access: yes, 2007
In three-dimensional space, a wave dislocation, that is, a quantized (optical) vortex or phase singularity, is a line zero of a complex scalar wavefunction.
Dennis, MR   +5 more
core   +1 more source

3D Printed Polymer Photonic Topological Insulators and their Robustness to Fabrication Disorder [PDF]

open access: yes, 2022
Photonic topological insulators have emerged as an exciting new platform for backscatter-free waveguiding even in the presence of defects, with applications in robust long-range energy and quantum information transfer, spectroscopy and sensing, chiral ...
Michael, Sabatini Mattei   +7 more
core   +1 more source

Effectiveness of rTMS on Working Memory and Inhibitory Impairments in Patients With Post‐Stroke Executive Deficits

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Considerable efforts have been dedicated to developing effective treatments for post‐stroke executive impairment (PSEI), among which repetitive transcranial magnetic stimulation (rTMS) has shown great potential. This study aimed to investigate the therapeutic effects of high‐frequency rTMS on working memory (WM) and response ...
Mengting Lao   +6 more
wiley   +1 more source

On the social induction of Alzheimer's disease: An index theorem aging model for amyloid formation [PDF]

open access: yes, 2011
The central 'risk factor' for Alzheimer's disease (AD) is age. From first principles, we construct a mathematical model of protein folding and its in vivo regulation that gives this result in a natural manner.
Rodrick Wallace, Deborah Wallace
core   +1 more source

On the topological index of irregular surfaces [PDF]

open access: yes, 2005
We study the topological index of some irregular surfaces that we call generalized Lagrangian. We show that under certain hypotheses on the base locus of the Lagrangian system the topological index is non-negative.
Naranjo, J. C.   +2 more
core   +2 more sources

Properties of the forgotten index in bipolar fuzzy graphs and applications

open access: yesScientific Reports
Topological indices are the numbers that remain constant under graph automorphism. Topological indices describe a network’s connectivity, structure, and topological characteristics. These indices have many applications in crisp graphs.
Shaikh Ibrahim Abdullah   +5 more
doaj   +1 more source

Magnetooptical determination of a topological index

open access: yesnpj Quantum Materials, 2017
Topological matter: magnetooptical characterization Opening a gap in a Dirac fermion system leads to the formation of a trivial or a non-trivial phase.
Badih A. Assaf   +6 more
doaj   +1 more source

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