Results 51 to 60 of about 299,939 (228)

Evaluación de las deformaciones por fluencia del hormigón autocompactante [PDF]

open access: yes, 2008
La fluencia es una característica importante del hormigón para la evaluación de su comportamiento a largo plazo. El objetivo de este trabajo ha sido el estudiar la fluencia del hormigón autocompactante en comparación con el hormigón convencional, con el ...
Agranati Landsberger, Galit   +1 more
core   +1 more source

The potential influence of genome‐wide adaptive divergence on conservation translocation outcome in an isolated greater sage‐grouse population

open access: yesConservation Biology, Volume 38, Issue 4, August 2024.
Abstract Conservation translocations are an important conservation tool commonly employed to augment declining or reestablish extirpated populations. One goal of augmentation is to increase genetic diversity and reduce the risk of inbreeding depression (i.e., genetic rescue).
Shawna J. Zimmerman   +5 more
wiley   +1 more source

En El Perú se Pueden Modelar y Predecir los Rendimientos Accionarios?

open access: yesPensamiento Crítico, 2007
Las redes neuronales artificiales (RNA) se han convertido en un importante instrumento para modelar y predecir los rendimientos accionarios y por ende para evaluar la eficiencia del mercado de capitales (HEM).
Jorge Barrera Herrera
doaj   +1 more source

Sustainability analysis through a model design in the Caroní river basin at then Venezuelan Guiana [PDF]

open access: yes, 2008
En este trabajo se evalúa la sostenibilidad de la cuenca del río Caroní ubicada en la Guayana venezolana, utilizando indicadores e índices que den cuenta de la intervención causada por la minería artesanal a pequeña escala.
Paolini Ruiz, Jorge
core   +1 more source

Effects of perceptions of forest change and intergroup competition on community‐based conservation behaviors

open access: yesConservation Biology, Volume 38, Issue 4, August 2024.
Abstract Approximately one quarter of the earth's population directly harvests natural resources to meet their daily needs. These individuals are disproportionately required to alter their behaviors in response to increasing climatic variability and global biodiversity loss.
Matt Clark   +4 more
wiley   +1 more source

Modelos estadísticos y evaluación: tres estudios en educación [PDF]

open access: yes
The educational system in Spain is undergoing a reorganization. At present, high-school graduates who want to enroll at a public university must take a set of examinations Pruebas de Aptitud para el Acceso a la Universidad (PAAU).
Anna Cuxart
core  

Constraste de hipótesis: clásico vs bayesiano [PDF]

open access: yes, 2010
La estadística bayesiana es una alternativa a la estadística clásica para la solución de problemas típicos estadísticos como son: estimación, contraste de hipótesis y predicción.
Alamilla, Norma, Jiménez, José
core  

A data‐driven approach to multiple‐stressor impact assessment for a marine protected area

open access: yesConservation Biology, Volume 38, Issue 2, April 2024.
Abstract The coastal environment is not managed in a way that considers the impact of cumulative threats, despite being subject to threats from all realms (marine, land, and atmosphere). Relationships between threats and species are often nonlinear; thus, current (linear) approaches to estimating the impact of threats may be misleading.
Laura L. Griffiths   +8 more
wiley   +1 more source

Una aplicación del teorema de Fieller

open access: yesRevista Colombiana de Estadística, 1981
El teorema de Fieller da límites fiduciarios para la razón de dos variables distribuidas normalmente. Este teorema se aplica en el problema de estimación de parametros de la función y(t)= k(e-at - e-l^*), importante en farmacocinética.
Knolle Helmut
doaj  

Utilização de diagramas causais em epidemiologia: um exemplo de aplicação em situação de confusão

open access: yesCadernos de Saúde Pública, 2016
Resumo: Apesar do crescente reconhecimento de seu potencial, os diagramas causais ainda são pouco utilizados na investigação epidemiológica. Uma das possíveis razões é que muitos programas de investigação envolvem temas sobre o qual há certo grau de ...
Taísa Rodrigues Cortes   +2 more
doaj   +1 more source

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