Results 1 to 10 of about 76,616 (112)

La conjunción y interclausular: Significados pragmáticos y estructura sintáctica

open access: yesCuadernos de la ALFAL, 2023
En este trabajo pretendemos abordar ciertos aspectos pragmáticos y sintácticos de la conjunción y en contextos de coordinación interclausular. A partir de Grice (1975, 1981), la tradición pragmática suele aceptar que las propiedades semánticas de y son ...
Juan José Cegarra Bacigalupo   +1 more
doaj   +6 more sources

Diabetes acts on mortality in hemodialysis patients predicted by asymmetric dimethylarginine and inflammation

open access: yesNefrología (English Edition), 2022
Background: The mortality rate of diabetic patients on dialysis is higher than that of non-diabetic patients. Asymmetric dimethylarginine and inflammation are strong predictors of death in hemodialysis.
Mauro Sergio Martins Marrocos   +5 more
doaj   +3 more sources

Hipoacusia sensorineural asimétrica en el diagnóstico de schwannoma vestibular

open access: yesRevista de Investigación e Innovación en Ciencias de la Salud, 2022
Introducción: se ha descrito que los pacientes con hipoacusia asimétrica cursan en un 2% con lesiones retrococleares. La conducta de escrutinio se ha basado en la audiometría.
Heloisa Coutinho de Toledo   +1 more
doaj   +1 more source

Triterpene Derivatives as Potential Inhibitors of the RBD Spike Protein from SARS-CoV-2: An In Silico Approach

open access: yesMolecules, 2023
The appearance of a new coronavirus, SARS-CoV-2, in 2019 kicked off an international public health emergency. Although rapid progress in vaccination has reduced the number of deaths, the development of alternative treatments to overcome the disease is ...
Mayra Avelar   +3 more
doaj   +1 more source

Asymmetric Organocatalyzed Phospha‐Michael Addition for the Direct Synthesis of Biologically Active Chromenylphosphonates

open access: yesAdvanced Synthesis &Catalysis, Volume 365, Issue 19, Page 3234-3240, October 13, 2023., 2023
Abstract The potential of phosphites as nucleophiles for the asymmetric synthesis of chiral chromene derivatives has been overlooked in the literature. Herein, we report a promising approach via asymmetric organocatalyzed phospha‐Michael addition to iminochromenes, using a bifunctional squaramide, which gives access to chromenylphosphonates, an ...
Eugenia Marqués‐López   +4 more
wiley   +1 more source

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

Variante de la anatomía de los músculos papilares como causa de insuficiencia mitral. Un caso de válvula mitral asimétrica en paracaídas-like

open access: yesRevista de la Facultad de Ciencias Médicas de Córdoba, 2021
Introducción: La válvula mitral en paracaídas-like es una anomalía congénita caracterizada por una disposición asimétrica de los músculos papilares, siendo las pruebas de imagen cardiaca son el procedimiento de elección tanto para el diagnóstico ...
Jorge Miguel Briceño Revillo   +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

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

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