Results 71 to 80 of about 96,525 (309)

On clique graphs and clique regular graphs

open access: yesDiscrete Mathematics
If $Γ$ is a graph for which every edge is in exactly one clique of order $ω$, then one can form a new graph with vertex set equal to these cliques. This is a generalization of the line graph of $Γ$. We discover many general results and classifications related to these clique graph that will be useful to researchers studying these objects. In particular,
Robert R. Petro, Connor M. Phillips
openaire   +2 more sources

On the approximability of the maximum induced matching problem [PDF]

open access: yes, 2005
In this paper we consider the approximability of the maximum induced matching problem (MIM). We give an approximation algorithm with asymptotic performance ratio <i>d</i>-1 for MIM in <i>d</i>-regular graphs, for each <i>d ...
Zito, Michele   +12 more
core   +1 more source

Dual PI3K/AKT and CDK4/6 inhibition reveals selective sensitivity in an SHH medulloblastoma stem cell model

open access: yesMolecular Oncology, EarlyView.
Targeted therapy was evaluated in SHH medulloblastoma using neuroepithelial stem cell (NES) and tumor‐derived NES‐like (tNES) models in 2D monolayers and 3D spheroids. PI3K, AKT, and CDK4/6 inhibitors had minimal effects in NES but markedly reduced viability and growth and induced apoptosis in tNES cells, revealing distinct therapeutic vulnerabilities.
Monika Lukoseviciute   +4 more
wiley   +1 more source

Edge-regular graphs with regular cliques [PDF]

open access: yesEuropean Journal of Combinatorics, 2018
We exhibit infinitely many examples of edge-regular graphs that have regular cliques and that are not strongly regular. This answers a question of Neumaier from 1981.
Gary R. W. Greaves, Jack H. Koolen
openaire   +3 more sources

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

One note on the number of pairwise non-isomorphic connected regular graphs

open access: yesMathematics Open
In this paper, we give an explicit expression for the number of pairwise non-isomorphic connected regular graphs as well as odd graphs on n vertices, where [Formula: see text] is a positive integer.
Hailin Liu, Liping Zhong, Huixian Xu
doaj   +1 more source

Construction of Cospectral Integral Regular Graphs

open access: yesDiscussiones Mathematicae Graph Theory, 2017
Graphs G and H are called cospectral if they have the same characteristic polynomial. If eigenvalues are integral, then corresponding graphs are called integral graph.
Bapat Ravindra B., Karimi Masoud
doaj   +1 more source

Distance regular graphs of diameter 3 and strongly regular graphs

open access: yesDiscrete Mathematics, 1984
In a paper by \textit{N. L. Biggs} [Ann. Discrete Math. 15, 69-80 (1982; Zbl 0506.05057)], two parameter sets for distance regular graphs that are antipodal covers of a complete graph were mentioned for which the existence of a corresponding graph was unknown.
openaire   +3 more sources

Decomposing random regular graphs into stars

open access: yes, 2023
We study k-star decompositions, that is, partitions of the edge set into disjoint stars with k edges, in the uniformly random d-regular graph model Gn,d.
Delcourt, Michelle   +4 more
core  

Deciphering transcriptional plasticity in pancreatic ductal adenocarcinoma reveals alterations in sensory neuron innervation

open access: yesMolecular Oncology, EarlyView.
Pancreatic sensory neurons innervating healthy and PDAC tissue were retrogradely labeled and profiled by single‐cell RNA sequencing. Tumor‐associated innervation showed a dominant neurofilament‐positive subtype, altered mitochondrial gene signatures, and reduced non‐peptidergic neurons.
Elena Genova   +14 more
wiley   +1 more source

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