Results 41 to 50 of about 1,447,658 (298)

Brain Connectivity and Graph Theory Analysis in Alzheimer’s and Parkinson’s Disease: The Contribution of Electrophysiological Techniques

open access: yesBrain Sciences, 2022
In recent years, applications of the network science to electrophysiological data have increased as electrophysiological techniques are not only relatively low cost, largely available on the territory and non-invasive, but also potential tools for large ...
Francesca Miraglia   +7 more
doaj   +1 more source

Under-Connected and Over-Connected Networks [PDF]

open access: yesSSRN Electronic Journal, 2009
Since the seminal contribution of Jackson & Wolinsky 1996 [A Strategic Model of Social and Economic Networks, JET 71, 44-74] it has been widely acknowledged that the formation of social networks exhibits a general conflict between individual strategic behavior and collective outcome.
Buechel, Berno, Hellmann, Tim
openaire   +6 more sources

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

open access: yesFEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka   +11 more
wiley   +1 more source

Connectivity Properties of Factorization Posets in Generated Groups

open access: yes, 2019
We consider three notions of connectivity and their interactions in partially ordered sets coming from reduced factorizations of an element in a generated group.
Mühle, Henri, Ripoll, Vivien
core   +1 more source

Polynomial iterative algorithms for coloring and analyzing random graphs [PDF]

open access: yes, 2003
We study the graph coloring problem over random graphs of finite average connectivity $c$. Given a number $q$ of available colors, we find that graphs with low connectivity admit almost always a proper coloring whereas graphs with high connectivity are ...
A. Braunstein   +31 more
core   +4 more sources

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

open access: yesFEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li   +2 more
wiley   +1 more source

Distance and the pattern of intra-European trade [PDF]

open access: yes, 1956
Given an undirected graph G = (V, E) and subset of terminals T ⊆ V, the element-connectivity κ ′ G (u, v) of two terminals u, v ∈ T is the maximum number of u-v paths that are pairwise disjoint in both edges and non-terminals V \ T (the paths need not be
A. Frank   +19 more
core   +2 more sources

Transferrin receptor 1‐mediated iron uptake supports thermogenic activation in human cervical‐derived adipocytes

open access: yesFEBS Letters, EarlyView.
In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai   +9 more
wiley   +1 more source

Flexible multi-node simulation of cellular mobile communications: the Vienna 5G System Level Simulator

open access: yesEURASIP Journal on Wireless Communications and Networking, 2018
The investigation and prediction of new trends and technologies for mobile cellular networks is of utmost importance for researchers and network providers to quickly identify promising developments.
Martin Klaus Müller   +8 more
doaj   +1 more source

Linking spontaneous and stimulated spine dynamics

open access: yesCommunications Biology, 2023
Our brains continuously acquire and store memories through synaptic plasticity. However, spontaneous synaptic changes can also occur and pose a challenge for maintaining stable memories.
Maximilian F. Eggl   +4 more
doaj   +1 more source

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