Results 61 to 70 of about 85,084 (308)

Structural Controllability Theory for Linear Time-Invariant Ensemble Systems

, 2021
Multi-agent systems are ubiquitous in science and engineering. For purposes of scalability and resilience, we wish to use a common control input to control a population of independent small networks.
Shenoy, Vishal
core   +1 more source

Invariants of complex structures on nilmanifolds [PDF]

Archivum Mathematicum, 2015
Let $(N, J)$ be a simply connected $2n$-dimensional nilpotent Lie group endowed with an invariant complex structure. We define a left invariant Riemannian metric on $N$ compatible with $J$ to be minimal, if it minimizes the norm of the invariant part of the Ricci tensor among all compatible metrics with the same scalar curvature. In [L1], J.
openaire   +4 more sources

Invariant Kekulé structures in fullerene graphs [PDF]

Electronic Notes in Discrete Mathematics, 2013
Abstract Fullerene graphs are trivalent plane graphs with only hexagonal and pentagonal faces. They are often used to model large carbon molecules: each vertex represents a carbon atom and the edges represent chemical bonds. A totally symmetric Kekule structure in a fullerene graph is a set of independent edges which is fixed by all symmetries of the
Mathieu Bogaerts, RINALDI, Gloria, Giuseppe Mazzuoccolo   +2 more
openaire   +2 more sources

pH‐mediated activation of the lysosomal arginine sensor SLC38A9

FEBS Letters, EarlyView.
Cells monitor nutrient levels via the lysosomal transporter SLC38A9 to activate the mechanistic target of rapamycin complex 1 (mTORC1). This study reveals that SLC38A9 function is regulated by pH. We identified histidine 544 as a critical pH sensor that undergoes conformational changes to control amino acid efflux from lysosomes; therefore, it ...
Xuelang Mu, Ampon Sae Her, Tamir Gonen
wiley   +1 more source

Biophysical approaches for studying viral entry

FEBS Letters, EarlyView.
Viruses infect all living organisms and have been responsible for major epidemics and pandemics. Their ongoing evolutionary battle with host defenses creates a constant need for improved tools to study viral behavior. Advancing methods to probe viral attachment, fusion, and genome release deepen our understanding of how infections begin and support the
Inbar Yosibash, Raya Sorkin
wiley   +1 more source

MixMG-SEM with double mixture modeling to capture similarities in measurement model and in structural relations across many groups

Methods in Psychology
Comparing relations between latent constructs across groups is essential for understanding social phenomena in different contexts. A key assumption for valid comparisons of such relations is that the constructs are measured equivalently across the groups,
Hongwei Zhao, Jeroen K. Vermunt, Kim De Roover   +2 more
doaj   +1 more source

Degradation mechanism of the von Willebrand factor A2 domain by nattokinase

FEBS Letters, EarlyView.
Nattokinase, a natto‐derived protease, exhibits potent antithrombotic effects. This study demonstrates that nattokinase directly cleaves the von Willebrand factor (vWF) A2 domain in vitro. Unlike the native regulator ADAMTS13, nattokinase degrades folded vWF independently of shear stress.
Ryuichi Hyakumoto, Masatomo So, Ayako Furukawa, Kenji Sugase   +3 more
wiley   +1 more source

Modulation of Homer1 EVH1 domain internal dynamics by putative autism‐associated mutations

FEBS Letters, EarlyView.
The putative autism‐associated M65I and S97L variants of the EVH1 domain of the postsynaptic scaffold protein Homer1 do not exhibit substantial changes in their overall structure or partner binding. Both of them, but especially the M65I variant, show altered internal dynamics relative to the wild‐type domain on the μs‐ms timescale, indicated by the ...
Fanni Farkas, Brigitta Maruzs, Zsófia E. Kálmán, Tomas Klumpler, Gyula Batta, Bálint Péterfia, Zoltán Gáspári   +6 more
wiley   +1 more source

Canards and curvature: nonsmooth approximation by pinching [PDF]

, 2011
In multiple time-scale (singularly perturbed) dynamical systems, canards are counterintuitive solutions that evolve along both attracting and repelling invariant manifolds.
Desroches, MF, M Desroches, M R Jeffrey, Jeffrey, MR   +3 more
core   +1 more source

Assessment of Invariant Moments of Fornix in Brain Structural MR Images to Differentiate Mild Cognitive Impairment from Alzheimer’s Disease

Current Directions in Biomedical Engineering
Alzheimer’s disease (AD) is a progressive neurodegenerative brain disorder that primarily affects elderly individuals. Mild cognitive impairment (MCI) represents an intermediate stage between normal cognitive functioning and the onset of AD.
Ali Ahsan, Agastinose Ronickom Jac Fredo, Swaminathan Ramakrishnan   +2 more
doaj   +1 more source