Results 41 to 50 of about 622 (259)
Molecular Oncology, EarlyView.Circulating microRNAs as biomarkers of cachexia and sex‐specific cancer in senior dogs. In 25 client‐owned dogs, four circulating miRNAs (miR‐15a, miR‐15b, miR‐16, miR‐140) were downregulated in cachexia, with miR‐16 the strongest individual biomarker (AUC = 0.899).
Soon‐Seok Park +6 more
wiley +1 more source
Perfect matchings and perfect squares
Journal of Combinatorial Theory, Series A, 1994 The author investigates (perfect) matchings of a large class of graphs with 4-fold rotational symmetry. It is proved by mostly combinatorial arguments that the number of such matchings is always a square or double a square. This result has an interesting application to tilings by dominoes.
openaire +3 more sources
Small RNA pathways in mammalian oocytes
FEBS Open Bio, EarlyView.Three distinct small RNA pathways operate in mammalian oocytes: RNAi interference (RNAi), the microRNA (miRNA) pathway, and the PIWI‐associated RNA (piRNA) pathway. These pathways use small RNAs to guide sequence‐specific repression and contribute to oocyte biology by targeting genes and mobile elements or appear insignificant since different ...
Petr Svoboda, Josef Pasulka
wiley +1 more source
The cost of perfection for matchings in graphs
Discrete Applied Mathematics, 2016 Perfect matchings and maximum weight matchings are two fundamental combinatorial structures. We consider the ratio between the maximum weight of a perfect matching and the maximum weight of a general matching. Motivated by the computer graphics application in triangle meshes, where we seek to convert a triangulation into a quadrangulation by merging ...
Emilio Vital Brazil +3 more
openaire +3 more sources
Heterotropic regulation and negative homotropic cooperativity
FEBS Open Bio, EarlyView.We identified a structural module common to some proteins that couple negative cooperativity with heterotropic regulation, two features that rarely coexist. These proteins are ring‐like and present an ordered asymmetry whereby noncontacting subunits are symmetric, and their tertiary structure differs from that of contacting subunits.
Veronica Morea +5 more
wiley +1 more source
Determinants and perfect matchings
Journal of Combinatorial Theory, Series A, 2013 15 pages, terminology improved, exposition tightened, "deranged matchings" example ...
openaire +4 more sources
A Workflow to Accelerate Microstructure‐Sensitive Fatigue Life Predictions
Advanced Engineering Materials, EarlyView.This study introduces a workflow to accelerate predictions of microstructure‐sensitive fatigue life. Results from frameworks with varying levels of simplification are benchmarked against published reference results. The analysis reveals a trade‐off between accuracy and model complexity, offering researchers a practical guide for selecting the optimal ...
Luca Loiodice +2 more
wiley +1 more source
Core Index of Perfect Matching Polytope for a 2-Connected Cubic Graph
Discussiones Mathematicae Graph Theory, 2018 For a 2-connected cubic graph G, the perfect matching polytope P(G) of G contains a special point xc=(13,13,…,13)$x^c = \left( {{1 \over 3},{1 \over 3}, \ldots ,{1 \over 3}} \right)$ . The core index ϕ(P(G)) of the polytope P(G) is the minimum number of
Wang Xiumei, Lin Yixun
doaj +1 more source
A bound on the number of perfect matchings in Klee-graphs [PDF]
Discrete Mathematics & Theoretical Computer Science, 2013 Combinatorics
Marek Cygan +2 more
doaj +1 more source
A short proof of the toughness of Delaunay triangulations
Journal of Computational Geometry, 2021 We present a self-contained short proof of the seminal result of Dillencourt (SoCG 1987 and DCG 1990) that Delaunay triangulations, of planar point sets in general position, are 1-tough.
Ahmad Biniaz
doaj +1 more source