Results 31 to 40 of about 468,737 (182)

The N‐prime graph and the Subgroup Isomorphism Problem

open access: yesJournal of the London Mathematical Society, Volume 113, Issue 6, June 2026.
Abstract We introduce a directed graph related to a group G$G$, which we call the N‐prime graph ΓN(G)$\Gamma _{\rm {N}}(G)$ of G$G$ and is a refinement of the classical Gruenberg–Kegel graph. The vertices of ΓN(G)$\Gamma _{\rm {N}}(G)$ are the primes p$p$ such that G$G$ has an element of order p$p$, and, for distinct vertices p$p$ and q$q$, the arc q→p$
Emanuele Pacifici   +2 more
wiley   +1 more source

BIEN: A biodiversity informatics ecosystem advancing open and reproducible workflows for plant observation, plot and trait data

open access: yesMethods in Ecology and Evolution, Volume 17, Issue 5, Page 1556-1584, May 2026.
Abstract The rapid expansion of biodiversity data presents new opportunities to understand and forecast biosphere dynamics. However, disparate and dispersed data, taxonomic and geographic inconsistencies, pervasive quality issues, and a lack of reproducable workflows hinder synthesis, introduce biases and limit accurate assessment of biodiversity ...
Brian J. Enquist   +38 more
wiley   +1 more source

Estudios métricos aplicados a la producción científica de la Universidad de las Ciencias Informáticas en el período 2020-2021 en la base de datos Scopus

open access: yesSerie Científica de la Universidad de las Ciencias Informáticas, 2023
En el presente trabajo se tiene como objetivo conocer la producción científica de la universidad de las ciencias informáticas en el periodo 2020 -2021 mediante estudios métricos para elevar a largo y mediano plazo indicadores que contribuyan a insertar a
Jorge Dayán Aguiar Cedeño   +3 more
doaj  

Optimized Parallel Reduction for Regular and Irregular Segments on GPU

open access: yesConcurrency and Computation: Practice and Experience, Volume 38, Issue 8, April 2026.
ABSTRACT Reduction is an operation that combines all the elements of a collection by applying a binary operation, such as sum, maximum, or minimum, to all the elements to obtain a single resulting value. This paper investigates implementation strategies for both segmented and non‐segmented reduction on GPUs.
Michel B. Cordeiro, Wagner M. Nunan Zola
wiley   +1 more source

Homogeneous Observer‐Based Affine Formation Tracking

open access: yesInternational Journal of Robust and Nonlinear Control, Volume 36, Issue 5, Page 2692-2704, 25 March 2026.
ABSTRACT This article addresses the control of mobile agents, termed followers, to track a time‐varying affine formation specified by a set of leaders. We present a distributed hierarchical method composed of a homogeneous high‐order sliding mode observer and a tracking controller. The observer estimates the followers' target trajectories from neighbor
Rodrigo Aldana‐López   +3 more
wiley   +1 more source

De la extracción al modelado del conocimiento en un Sistema Basado en el Conocimiento. Un enfoque desde el agrupamiento conceptual lógico combinatorio (From the extraction to knowledge modeling in a Knowledge Based System. A logical combinatorial conceptual grouping approach)

open access: yesGECONTEC: Revista Internacional de Gestión del Conocimiento y la Tecnología, 2017
Elucidar y reproducir conocimiento es la tarea central en la construcción de los sistemas basados en el conocimiento; el sujeto de esta acción es el ingeniero de conocimiento.
Yunia Reyes González   +3 more
doaj   +2 more sources

Propane Dehydrogenation Over Reduced CeO2 and CeZrO2

open access: yesChemCatChem, Volume 18, Issue 6, 27 March 2026.
Ceria, a non‐noble metal oxide considered inactive for propane dehydrogenation, is transformed into an active catalyst via a deep, bulk‐level reduction pre‐treatment that generates new active sites and unlocks alternative low‐energy pathways for this process.
Benjamín Bohigues   +6 more
wiley   +1 more source

Efficient Scheduling Algorithms for Multicore Cyclic Executives With Precedence and Exclusion Relations

open access: yesConcurrency and Computation: Practice and Experience, Volume 38, Issue 5, March 2026.
ABSTRACT Cyclic executives (CEs) offer the advantage of ensuring complete determinism with minimal runtime overhead, often making them the preferred choice for safety‐critical real‐time systems. However, generating CEs for multicore processors while addressing task precedence and exclusion relations presents significant challenges.
Bruno Nogueira   +4 more
wiley   +1 more source

Alasmedigen v1.1: sistema informático de genética médica

open access: yesRevista Cubana de Informática Médica, 2014
En el año 2008, se crea alasMEDIGEN: Sistema Informático de Genética Médica, el cual tiene como objetivo recoger los datos obtenidos por los diferentes estudios genéticos que se llevan a cabo en el Centro Nacional de Genética Médica; cuenta con siete ...
Dayana Joseph Smarth   +4 more
doaj   +2 more sources

Phonon Scattering by Local Off‐Centering in Diamond‐Like Cu2−XAgxIn2Se4 Chalcopyrites: High Carrier Mobility and Ultralow Thermal Conductivity

open access: yesSmall Structures, Volume 7, Issue 2, February 2026.
Local Ag substitution in diamond‐like Cu2‐xAgxIn2Se4 induces dynamic off‐centering distortions that strongly scatter phonons while preserving high carrier mobility. The resulting interplay between alloy disorder and band structure yields ultralow lattice thermal conductivity and promising thermoelectric performance in this sustainable, tellurium‐free ...
Irene Caro‐Campos   +10 more
wiley   +1 more source

Home - About - Disclaimer - Privacy