Results 111 to 120 of about 24,612 (239)

ON DIVISIBILITY PROPERTIES OF SOME DIFFERENCES OF THE CENTRAL BINOMIAL COEFFICIENTS AND CATALAN NUMBERS

open access: yes, 2014
We discuss divisibility properties of some differences of the central binomial coefficients and Catalan numbers. The main tool is the application of various congruences modulo high prime powers for binomial coefficients combined with some recurrences relevant to these combinatorial quantities.
openaire   +4 more sources

Stable Cuts, NAC‐Colourings and Flexible Realisations of Graphs

open access: yesJournal of Graph Theory, EarlyView.
ABSTRACT A (2‐dimensional) realisation of a graph G $G$ is a pair ( G , p ) $(G,p)$, where p $p$ maps the vertices of G $G$ to R 2 ${{\mathbb{R}}}^{2}$. A realisation is flexible if it can be continuously deformed while keeping the edge lengths fixed, and rigid otherwise.
Katie Clinch   +5 more
wiley   +1 more source

Central binomial coefficients also count (2431,4231,1432,4132)-avoiders

open access: yes, 2015
This short paper is concerned with the enumeration of permutations avoiding the following four patterns: $2431$, $4231$, $1432$ and $4132$. Using a bijective construction, we prove that these permutations are counted by the central binomial coefficients.
openaire   +2 more sources

A two‐stage model for precise identification and Gleason grading of clinically significant prostate cancer: a hybrid approach

open access: yesJournal of Medical Radiation Sciences, Volume 72, Issue 1, Page 93-105, March 2025.
This study developed a two‐stage model using radiomics‐based multiparametric MRI and clinical indicators to help identify and grade clinically significant prostate cancer. The model showed promising levels of diagnostic accuracy and predictive performance.
Yuyan Zou   +10 more
wiley   +1 more source

Geographically weighted negative binomial regression for spatial count data: Methodology and application. [PDF]

open access: yesMethodsX
Saifudin T   +6 more
europepmc   +1 more source

Infinite Product Representation for Central Binomial Coefficients

open access: yes
We introduce an elegant infinite product for central binomial coefficients.
openaire   +4 more sources

Statistical Downscaling of Daily Temperature and Precipitation From Regional Climate Models in Complex Mountain Terrain

open access: yesInternational Journal of Climatology, EarlyView.
The study provides insights for post‐processing climate model output in complex terrain, useful for climate change impact models. We compared different bias adjustment and downscaling techniques from quantile delta mapping to simple lapse rates. We developed a new spatial downscaling method based on principal components analysis, which showed superior ...
Michael Matiu   +4 more
wiley   +1 more source

Are the detection and dimensions of peri‐implant buccal bone defects influenced by different implant materials and their location? An experimental cone‐beam computed tomography study

open access: yesJournal of Periodontology, EarlyView.
Abstract Background The aim of this study is to evaluate the impact of different implant materials and arrangements within the field of view (FOV) and exomass on the diagnostic accuracy and image quality of cone‐beam computed tomography (CBCT) for the detection of peri‐implant buccal bone defects of various sizes. Methods A total of 120 CBCT scans with
Yulan Wang   +5 more
wiley   +1 more source

Association between periodontitis and oral health–related quality of life in patients with systemic conditions: A meta‐analysis

open access: yesJournal of Periodontology, EarlyView.
Abstract Background The objective of this systematic review is to evaluate whether periodontitis is associated with impaired oral health–related quality of life (OHRQoL) in adults with systemic conditions. Methods Five databases were searched to identify observational studies that tested the association between periodontitis (diagnosed by clinical ...
Rafael Vargas Bortolaso   +5 more
wiley   +1 more source

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