Results 31 to 40 of about 1,271 (183)

Un procedimiento para la simulación de modelos lineales en tiempo continuo con previsión perfecta e histéresis

open access: yesEstudios Económicos, 1998
Se presenta un procedimiento para la simulación de: modelos lineales, en tiempo continuo, con previsión perfecta e histéresis. El procedimiento, que constituye la base del algoritmo LPFH, parte de una generalización de la forma estructural estándar ...
Carlos Graziani, Andrés Almansa
doaj   +1 more source

Effects of landscape context on avian specialist response to increased surface temperature in protected areas

open access: yesConservation Biology, Volume 40, Issue 3, June 2026.
Abstract Human development is a driver of global change and a major threat to biodiversity. Protected areas maintain and support biodiversity, but outside stressors, such as climate change and land use change, can negatively influence natural resources within protected areas.
Leah J. Rudge   +2 more
wiley   +1 more source

“Humanizar”: aprendizajes sobre alteridad, salud y futuro en una experiencia de investigación compartida

open access: yesThe Journal of Latin American and Caribbean Anthropology, Volume 31, Issue 2, June 2026.
ABSTRACT The visit to Bogotá of a fééeneminaa (Muinane) friend, Célimo Nejedeka Jifichíu, and in particular, his work in researching and transmitting traditional health knowledge, offer the pretext to navigate the relationship between elements that at first glance seem distant from each other: indigenous imaginaries about otherness, their visions of ...
Giovanna Micarelli
wiley   +1 more source

Longitudinal maternal hemodynamics in high‐risk pregnancies with different subtypes of pre‐eclampsia

open access: yesUltrasound in Obstetrics &Gynecology, Volume 67, Issue 5, Page 623-634, May 2026.
ABSTRACT Objective To evaluate maternal cardiac adaptation during pregnancy by comparing longitudinal hemodynamic profiles between women identified as high risk for preterm pre‐eclampsia (PE) who subsequently developed preterm PE, term PE or remained unaffected, as well as low‐risk women.
J. Lin   +10 more
wiley   +1 more source

Algunas cuestiones abiertas relativas al crecimiento biológico

open access: yesArbor: Ciencia, Pensamiento y Cultura, 2010
En este trabajo revisamos brevemente las propiedades de las superficies que crecen de forma radial y su conexión con el crecimiento biológico. Nos vamos a concentrar en modelos simplificados que resultan de la abstracción de sólo considerar el ...
Carlos Escudero
doaj   +1 more source

Algoritmo greedy para la predicción del índice de servicio de pavimento basado en agrupación y regresión lineal

open access: yesInvestigación e Innovación en Ingenierías, 2020
Objetivo: proponer un algoritmo CLR (Clusterwise Linear Regression) que realiza agrupamiento divisivo de muestras de segmentos de pavimentos utilizando modelos de regresión lineal y define automáticamente el número de agrupaciones con el fin de predecir
Francisco Javier Anacona-Campo   +2 more
doaj   +1 more source

Functional traits predict changes in floral phenology under climate change in a highly diverse Mediterranean community

open access: yesFunctional Ecology, Volume 40, Issue 5, Page 1270-1285, May 2026.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Plants are shifting their flowering phenology in response to climate change, but trends differ between species and communities. Functional traits can largely explain how different species respond to climate change by shifting their phenology, and can therefore help ...
Daniel Pareja‐Bonilla   +3 more
wiley   +1 more source

Distancia entre modelos lineales normales

open access: yesQüestiió: quaderns d'estadística i investigació operativa, 1986
In this paper, starting from the Shannon's entropy functional we have defined and obtained algebraic expressions of distances between univariate and multivariate normal linear models of equal variance. We have explicitly obtained algebraic expressions of the estimators of such distances which have been used to design test of hypothesis between two or ...
Ríos, Martín   +1 more
openaire   +2 more sources

Unraveling the Phenology of the Liana Marcgravia longifolia: Temporal Patterns and Climatic Cues

open access: yesBiotropica, Volume 58, Issue 2, March 2026.
We monitored the reproductive phenology of the Amazonian liana Marcgravia longifolia J. F. Macbr (Marcgraviaceae) for 84 consecutive months in the Peruvian Amazon to quantify the timing, synchrony, and seasonality of flowering and ripe fruiting. Flower presence peaked in August with intermediate synchrony, while ripe fruit presence peaked in November ...
Alessandro Mainardi   +5 more
wiley   +1 more source

Acotación del error de modelos de redes neuronales aplicados al pronóstico de series de tiempo

open access: yesRevista UIS Ingenierías, 2011
Las redes neuronales artificiales son una importante técnica en el pronóstico de series de tiempo no lineales. Sin embargo,el entrenamiento de las redes neuronales es una tarea difícil, a causa de la presencia de muchos puntos óptimos localesy a la ...
Juan David Velasquez-H.
doaj  

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