Results 51 to 60 of about 11,796 (253)

Tumor‐Derived Alpha‐1 Antitrypsin Promotes Liver Metastasis of Colorectal Cancer Through the Neutrophil Extracellular Traps–CCDC25 Pathway

open access: yesAdvanced Science, EarlyView.
ABSTRACT Liver metastasis is a leading cause of mortality in colorectal cancer (CRC), where the inflammatory tumor microenvironment, specifically neutrophil infiltration, significantly promotes metastatic colonization. This study reveals a pro‐metastatic role for alpha‐1 antitrypsin (A1AT) in CRC liver metastasis via a dual mechanism involving ...
Qian Fei   +11 more
wiley   +1 more source

The Geodetic Hull Number is Hard for Chordal Graphs

open access: yes, 2017
We show the hardness of the geodetic hull number for chordal ...
Bessy, Stéphane   +3 more
core   +1 more source

Chordal multipartite graphs and chordal colorings

open access: yesDiscrete Mathematics, 2007
A graph is defined to be chordal colorable if it admits a proper vertex-coloring such that each minimal separator induces a subgraph in which two vertices are adjacent if and only if they are differently colored. All chordal graphs and all chordal bipartite graphs are chordal colorable. All chordal colorable graphs are weakly chordal.
openaire   +1 more source

Decoding Spatial Heterogeneity and Multi‐Omics Regulation with Hierarchical Graph Learning

open access: yesAdvanced Science, EarlyView.
ABSTRACT Recent advances in spatial multi‐omics technologies have enabled the simultaneous profiling of multiple molecular layers within the same tissue slice, providing unprecedented opportunities to investigate tissue spatial organization. However, most existing computational methods identify spatial domains in a purely data‐driven manner, rarely ...
Jiazhou Chen   +6 more
wiley   +1 more source

Choice Numbers of Chordal, Chordless, and Some Non-Chordal Graphs

open access: yesMathematics
We prove that chordal graphs are chromatic-choosable and present a decomposition theorem to help estimate the choice numbers for certain classes of chordless and non-chordal graphs.
Julian Allagan   +3 more
doaj   +1 more source

On the multipacking number of grid graphs [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2019
In 2001, Erwin introduced broadcast domination in graphs. It is a variant of classical domination where selected vertices may have different domination powers. The minimum cost of a dominating broadcast in a graph $G$ is denoted $\gamma_b(G)$.
Laurent Beaudou, Richard C. Brewster
doaj   +1 more source

The regularity of binomial edge ideals of graphs [PDF]

open access: yes, 2013
We prove two recent conjectures on some upper bounds for the Castelnuovo-Mumford regularity of the binomial edge ideals of some different classes of graphs.
Dariush Kiani, Saeedi Madani, Sara
core  

Equistable chordal graphs

open access: yesDiscrete Applied Mathematics, 2003
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Uri N. Peled, Udi Rotics
openaire   +1 more source

G6PC Downregulation Promotes Renal Calcium Oxalate Stone Formation via Lactate‐Induced SNAIL1 K206 Lactylation and Epithelial‐Mesenchymal Transition

open access: yesAdvanced Science, EarlyView.
In renal calcium oxalate stone formation, G6PC downregulation leads to lactate accumulation. This lactate mediates CBP/p300‐dependent lactylation of SNAIL1 at K206, promoting its nuclear translocation. Nuclear SNAIL1 activates the TGF‐β/SMAD3 pathway, driving epithelial‐mesenchymal transition and fibrosis, which ultimately facilitates crystal ...
Kai Liu   +16 more
wiley   +1 more source

Efficient (j, k)-Dominating Functions

open access: yesDiscussiones Mathematicae Graph Theory, 2023
For positive integers j and k, an efficient (j, k)-dominating function of a graph G = (V, E) is a function f : V → {0, 1, 2, . . ., j} such that the sum of function values in the closed neighbourhood of every vertex equals k. The relationship between the
Klostermeyer William F.   +3 more
doaj   +1 more source

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