Results 81 to 90 of about 1,017,247 (314)

Large‐Scale Genomics Reveals Three‐Source Ancestry and Layered Adaptation to High Altitude in Tibetan Chickens

open access: yesAdvanced Science, EarlyView.
Whole‐genome analysis of 1,054 chickens reveals three ancestral sources (NWC, SYA, and SHF) with distinct temporal entry patterns into the Tibetan Plateau. Route‐specific selection scans, calibrated against a demographic null, suggest complementary functional enrichments—vascular homeostasis (NWC), calcium signaling and cardiac adaptation (SYA), and ...
Zongyi Zhao   +7 more
wiley   +1 more source

Bipartite Unique Neighbour Expanders via Ramanujan Graphs

open access: yesEntropy
We construct an infinite family of bounded-degree bipartite unique neighbour expander graphs with arbitrarily unbalanced sides. Although weaker than the lossless expanders constructed by Capalbo et al., our construction is simpler and may be closer to ...
Ron Asherov, Irit Dinur
doaj   +1 more source

A Phase‐Resolved Geometric Deep Learning Framework Maps Structural Determinants of Disease‐Associated Protein Aggregation and Guides Suppressor Design

open access: yesAdvanced Science, EarlyView.
SKALE 2.0 maps disease‐associated protein aggregation as a phase‐resolved structural process, linking mutation‐induced geometric perturbations to nucleation, elongation, and suppressor design. Across neurodegenerative proteins, the framework reveals cryptic aggregation vulnerabilities, separates phase‐concordant and phase‐switching mutations, and ...
Jia Shen Sio   +6 more
wiley   +1 more source

Hierarchical Representation Learning for Bipartite Graphs

open access: yesInternational Joint Conference on Artificial Intelligence, 2019
Recommender systems on E-Commerce platforms track users' online behaviors and recommend relevant items according to each user’s interests and needs. Bipartite graphs that capture both user/item feature and use-item interactions have been demonstrated to ...
Chong Li   +4 more
semanticscholar   +1 more source

Sharp upper bounds for multiplicative Zagreb indices of bipartite graphs with given diameter [PDF]

open access: yesDiscrete Applied Mathematics, 2017
The first multiplicative Zagreb index of a graph G is the product of the square of every vertex degree, while the second multiplicative Zagreb index is the product of the degree of each edge over all edges.
Chunxiang Wang   +2 more
semanticscholar   +1 more source

The Median Problem on k-Partite Graphs

open access: yesDiscussiones Mathematicae Graph Theory, 2015
In a connected graph G, the status of a vertex is the sum of the distances of that vertex to each of the other vertices in G. The subgraph induced by the vertices of minimum (maximum) status in G is called the median (anti-median) of G.
Pravas Karuvachery, Vijayakumar Ambat
doaj   +1 more source

Cubic planar graphs that cannot be drawn on few lines

open access: yesJournal of Computational Geometry, 2021
For every integer $\ell$, we construct a cubic 3-vertex-connected planar bipartite graph $G$ with $O(\ell^3)$ vertices such that there is no planar straight-line drawing of $G$ whose vertices all lie on $\ell$ lines.
David Eppstein
doaj   +1 more source

Domination in bipartite graphs

open access: yesDiscrete Mathematics, 2009
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Jochen Harant, Dieter Rautenbach
openaire   +2 more sources

On Turán exponents of bipartite graphs [PDF]

open access: yesCombinatorics, probability & computing, 2018
A long-standing conjecture of Erdős and Simonovits asserts that for every rational number $r\in (1,2)$ there exists a bipartite graph H such that $\mathrm{ex}(n,H)=\Theta(n^r)$ .
T. Jiang, Jie Ma, Liana Yepremyan
semanticscholar   +1 more source

TDP‐43 Aggregation: The Healthy‐Toxic Balance of the Prion‐Like Domain

open access: yesAdvanced Science, EarlyView.
TDP‐43 function relies on a delicate balance between reversible phase‐separated states and irreversible aggregation. Under physiological conditions, TDP‐43 forms dynamic droplets and oligomers that support normal cellular functions. In pathological contexts, this balance shifts toward aberrant aggregation, leading to toxic species.
Luca Zangrando   +2 more
wiley   +1 more source

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