Results 131 to 140 of about 101,128 (285)

The Chromatic Number of Product Graphs [PDF]

open access: yes, 2013
This main goal of this paper is to answer the following question: for which graph products can the chromatic number of the product graph be written as a function of the chromatic numbers of the original two products. We approach this\ud question first by
Anderson, Kaelyn
core  

Uniqueness of Bipartite Factors in Prime Factorizations Over the Direct Product of Graphs [PDF]

open access: yes, 2013
While it has been known for some time that connected non-bipartite graphs have unique prime factorizations over the direct product, the same cannot be said of bipartite graphs.
Puffenberger, Owen, Owen Puffenberger
core   +2 more sources

Maximum Independent Sets in Direct Products of Cycles or Trees with Arbitrary Graphs

open access: yesDiscussiones Mathematicae Graph Theory, 2015
The direct product of graphs G = (V (G),E(G)) and H = (V (H),E(H)) is the graph, denoted as G×H, with vertex set V (G×H) = V (G)×V (H), where vertices (x1, y1) and (x2, y2) are adjacent in G × H if x1x2 ∈ E(G) and y1y2 ∈ E(H). Let n be odd and m even. We
Paj Tjaša, Špacapan Simon
doaj   +1 more source

The impact of foreign direct investments on key macroeconomic variables in the Republic of Serbia and the countries of the region [PDF]

open access: yesMegatrend Revija
Macroeconomic variables, as an indicator of the economic situation in a country, are the subject of increasing interest and they can significantly make it easier for us to understand the economic policy that a country is leading.
Kovinić Nikola
doaj   +1 more source

The Automorphism Group of the Wreath Product of Directed Graphs

open access: yesEuropean Journal of Combinatorics, 1980
We give necessary and sufficient conditions for the automorphism group of the wreath product of directed graphs to be the wreath product of their respective automorphism groups. This gives a generalization of a theorem of Sabidussi.
openaire   +2 more sources

Translating whole‐genome doubling into precision medicine in cancer

open access: yesMolecular Oncology, EarlyView.
Whole‐genome doubling creates a WGD‐positive tumor state characterized by persistent chromosomal instability, karyotypic diversification, and cellular stress. These same biological pressures drive aggressive tumor evolution while exposing therapeutic vulnerabilities, providing a rationale for WGD‐informed precision medicine. Whole‐genome doubling (WGD)
Sejung Lee, Junghyeok Lim, Jinhyuk Bhin
wiley   +1 more source

Single‐cell DNA methylation profiling: Technologies, computation, and applications in precision oncology

open access: yesMolecular Oncology, EarlyView.
Single‐cell DNA methylation (scDNAme) profiling maps epimutational clonal evolution, revealing mechanisms of malignancy and therapeutic resistance across diverse cancer types. By providing a high‐resolution landscape of intratumoral heterogeneity, these technologies empower precise patient stratification, guide the development of enhanced ...
Ik Soo Kim
wiley   +1 more source

Dominating direct products of graphs [PDF]

open access: yes, 2008
An upper bound for the domination number of the direct product of graphsis proved. It in particular implies that for any graphs G and H, fl(G * H) <=3 fl(G)fl(H).
Bostjan Bresar , Sandi Klavzar, et al.
core  

Interferon beta drives therapy resistance in a patient‐derived model of high‐grade serous ovarian cancer

open access: yesMolecular Oncology, EarlyView.
Interferon type 1 (IFN‐1) production and signaling is associated with the acquisition of therapy resistance, following chronic DNA damage, via Interferon‐related DNA damage resistance signature (IRDS) gene expression. An alternative, DNA damage‐independent role of sustained IFN‐1 mediated resistance was identified and characterized by the emergence of ...
Ashlyn Conant   +11 more
wiley   +1 more source

CEACAM1 participation in breast cancer progression

open access: yesMolecular Oncology, EarlyView.
In invasive breast cancer (BC), CEACAM1 shifts from an apical to a uniform membranous/cytoplasmic pattern, or is lost, as tumors dedifferentiate, inversely tracking the Ki‐67 proliferative index. In MCF‐7 cells, only CEACAM1‐4L suppresses proliferation, repressing cell cycle and growth factor genes.
Mykola Lyndin   +3 more
wiley   +1 more source

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