Results 21 to 30 of about 80,398 (187)

Describing posterior distributions of variance components: Problems and the use of null distributions to aid interpretation

open access: yesMethods in Ecology and Evolution, Volume 14, Issue 10, Page 2557-2574, October 2023., 2023
Abstract Assessing the biological relevance of variance components estimated using Markov chain Monte Carlo (MCMC)‐based mixed‐effects models is not straightforward. Variance estimates are constrained to be greater than zero and their posterior distributions are often asymmetric.
Joel L. Pick   +10 more
wiley   +1 more source

New Organocatalytic Asymmetric Synthesis of Highly Substituted Chiral 2-Oxospiro-[indole-3,4′- (1′,4′-dihydropyridine)] Derivatives

open access: yesMolecules, 2015
Herein, we report our preliminary results concerning the first promising asymmetric synthesis of highly functionalized 2-oxospiro-[indole-3,4′-(1′,4′-dihydropyridine)] via the reaction of an enamine with isatylidene malononitrile derivatives in the ...
Fernando Auria-Luna   +4 more
doaj   +1 more source

The influence of equine hoof conformation on the initiation and progression of laminitis

open access: yesEquine Veterinary Journal, Volume 55, Issue 5, Page 862-871, September 2023., 2023
Abstract Background The health and performance of horses are significantly affected by diseases associated with the hoof. Laminitis is a critical hoof disease that causes pain and, potentially, severe hoof and bone pathology. Objective To generate an equine hoof finite element (FE) model to investigate the impact of normal and toe‐in hoof conformations
Naeim Akbari Shahkhosravi   +3 more
wiley   +1 more source

Sistema de auriculares en teleoperadores: estudio en una central de llamadas del sur de España

open access: yesMedicina y Seguridad del Trabajo, 2020
Resumen Introducción: El personal teleoperador de las centrales de llamadas telefónicas, está sometido a ruido ambiental y al nivel sonoro de los auriculares con el posible desarrollo de pérdida auditiva.
Concepción Flores Muñoz   +2 more
doaj   +1 more source

Enantioselective C−P Bond Formation through C(sp3)−H Functionalization

open access: yesAdvanced Synthesis &Catalysis, Volume 365, Issue 13, Page 2152-2158, July 4, 2023., 2023
Abstract An enantioselective C−P bond formation has been developed through a C(sp3)−H activation in an oxidation step followed by an organocatalyzed hydrophosphonylation protocol. The asymmetric organocatalytic Pudovik reaction has been achieved following a one‐pot strategy, starting from different benzylic and allylic alcohols and dibenzyl phosphite ...
Sandra Ardevines   +6 more
wiley   +1 more source

First Organocatalytic Asymmetric Synthesis of 1-Benzamido-1,4-Dihydropyridine Derivatives

open access: yesMolecules, 2018
Preliminary results concerning the first asymmetric synthesis of highly functionalized 1-benzamido-1,4-dihydropyridine derivatives via the reaction of hydrazones with alkylidenemalononitriles in the presence of β-isocupreidine catalyst are reported.
Fernando Auria-Luna   +2 more
doaj   +1 more source

Crecimiento económico, información asimétrica en mercados financieros y microcréditos

open access: yesEconomía, Sociedad y Territorio, 2007
Se presenta un artículo teórico respecto a la relación existente entre desarrollo de instituciones financieras, reducción de la información asimétrica y su impacto en el crecimiento económico.
HORACIO ESQUIVEL-MARTÍNEZ   +1 more
doaj   +3 more sources

Comportamiento mecánico ante la sobrexpansión de stents de cromo-cobalto comparados con stents de acero inoxidable, implantados en la aorta abdominal de conejos hipercolesterolémicos [PDF]

open access: yes, 2018
Introducción: La fisiopatología de la disfunción diastólica del ventrículo izquierdo incluye alteraciones de la relajación ventricular, rigidez elástica pasiva o una combinación de ambos mecanismos.
Berrocal, Daniel   +5 more
core   +1 more source

Logística militar en los conflictos del siglo XXI. El espacio y los retos ofrecidos por la guerra asimétrica

open access: yesRevista Científica General José María Córdova, 2011
La guerra asimétrica se presenta como la innovación característica de la mayoría de conflictos del sistema internacional posterior a la Guerra Fría, incrementados por el sistema internacional anti terrorista posterior al 11 de septiembre.
Juan Ricardo Sánchez Hurtado   +3 more
doaj   +1 more source

Fine-scale population structure and asymmetrical dispersal in an obligate salt-marsh passerine, the Saltmarsh Sparrow (Ammodramus Caudacutus) [PDF]

open access: yes, 2012
Understanding the spatial scale of gene flow can yield valuable insight into the ecology of an organism and guide conservation strategies. Fine-scale genetic structure is uncommon in migratory passerines because of their high vagility and presumed high ...
Babbitt, Kimberly J.   +3 more
core   +2 more sources

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