Results 11 to 20 of about 7,274 (228)

Extended Double Covers and Homomorphism Bounds of Signed Graphs

open access: yes, 2023
International audienceA signed graph (G, σ) is a graph G together with an assignment σ : E(G) → {+, −}. The notion of homomorphisms of signed graphs is a relatively new development which allows to strengthen the connection between the theories of minors ...
Xu, Rongxing   +5 more
core   +2 more sources

Weighted Model Counting with Twin-Width [PDF]

open access: yes, 2022
Bonnet et al. (FOCS 2020) introduced the graph invariant twin-width and showed that many NP-hard problems are tractable for graphs of bounded twin-width, generalizing similar results for other width measures, including treewidth and clique-width. In this
Simonov, Kirill   +4 more
core   +3 more sources

The replacements of signed graphs and Kauffman brackets of link families

open access: yes, 2007
Let G be a signed graph. Let 6 be the graph obtained from G by replacing each edge e of G by a chain or a sheaf. In this paper we first establish a relation between the Q-polynomial of (G) over cap [L.H.
Zhang,F, Jin,X, 张福基
core   +3 more sources

Quantum Grid States and Hybrid Graphs

open access: yes, 2022
Using the signed laplacian matrix, and weighted and hybrid graphs, we present additional ways to interpret graphs as grid states. Hybrid graphs offer the most general interpretation. Existing graphical methods that characterize entanglement properties of
Wagner, Thomas   +3 more
core   +1 more source

Weighted Modulo Orientations of Graphs

open access: yes, 2020
This dissertation focuses on the subject of nowhere-zero flow problems on graphs. Tutte\u27s 5-Flow Conjecture (1954) states that every bridgeless graph admits a nowhere-zero 5-flow, and Tutte\u27s 3-Flow Conjecture (1972) states that every 4-edge ...
Liu, Jianbing
core   +1 more source

Tau acetylation at K331 has limited impact on tau pathology in vivo

open access: yesFEBS Letters, EarlyView.
We mapped tau post‐translational modifications in humanized MAPT knock‐in mice and in amyloid‐bearing double knock‐in mice. Acetylation within the repeat domain, particularly around K331, showed modest increases under amyloid pathology. To test functional relevance, we generated MAPTK331Q knock‐in mice.
Shoko Hashimoto   +3 more
wiley   +1 more source

A dichromatic polynomial for weighted graphs and link polynomials

open access: yes, 1989
A dichromatic polynomial for weighted graphs is presented. The Kauffman bracket of a signed graph, an invariant inspired by the Jones polynomial of a link in three-space, is shown to be essentially an evaluation of this dichromatic polynomial, as are the
Lorenzo Traldi
core   +1 more source

The Kuramoto model on oriented and signed graphs

open access: yes, 2020
Many real-world systems of coupled agents exhibit directed interactions, meaning that the influence of an agent on another is not reciprocal. Furthermore, interactions usually do not have an identical amplitude and/or sign.
Jacquod, Philippe   +2 more
core   +1 more source

Hyperosmotic stress induces PARP1‐mediated HPF1‐dependent mono(ADP‐ribosyl)ation

open access: yesFEBS Letters, EarlyView.
Sorbitol‐induced hyperosmotic stress rapidly induces reversible mono(ADP‐ribosyl)ation (MARylation) on PARP1 without the signs of genotoxic signaling. We show that PARP1 autoMARylation is HPF1 dependent and forms hydroxylamine‐resistant O‐glycosidic linkages.
Anna Georgina Kopasz   +11 more
wiley   +1 more source

Establishment of a humanized patient‐derived xenograft mouse model of high‐grade serous ovarian cancer for preclinical evaluation of combination immunotherapy

open access: yesMolecular Oncology, EarlyView.
We have established a humanized orthotopic patient‐derived xenograft (Hu‐oPDX) mouse model of high‐grade serous ovarian cancer (HGSOC) that recapitulates human tumor–immune interactions. Using combined anti‐PD‐L1/anti‐CD73 immunotherapy, we demonstrate the model's improved biological relevance and enhanced translational value for preclinical ...
Luka Tandaric   +10 more
wiley   +1 more source

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