Results 51 to 60 of about 100,185 (222)

Conceptos y propiedades de probabilidaden libros de textoespañoles de educación primaria

open access: yesAvances de Investigación en Educación Matemática, 2014
En este artículo se analiza la presentación de conceptos y propiedades asociados a cuatro significados de la probabilidad en dos series de libros de texto españoles de educación primaria.
Emilse Gómez Torres   +2 more
doaj   +1 more source

An experimental approach to assess the combined effects of multiple stressors on a large vertebrate species

open access: yesConservation Biology, Volume 40, Issue 4, August 2026.
Abstract The design of experiments to investigate the combined effects of multiple stressors requires exposing target organisms to multiple combinations of stressor doses. Concurrent manipulation of stressors is often infeasible with wildlife, but long‐lasting health effects allow individual health to be used as an integrator of prior stressor exposure.
Enrico Pirotta   +24 more
wiley   +1 more source

Centering geospatial data uncertainty and the potential for injustice in pastoralist rangeland conservation prioritization

open access: yesConservation Biology, Volume 40, Issue 4, August 2026.
Abstract Procedural, distributional, recognitional, and epistemic justice aspects of conservation interventions are well documented in contexts where pastoralism is a key livelihood and way of life. Geospatial analyses and representations of wildlife conservation and restoration that are increasingly applied in pastoralist rangeland socioecological ...
Ryan R. Unks
wiley   +1 more source

Improving the use of expert opinion in disease risk analysis for conservation translocations

open access: yesConservation Biology, Volume 40, Issue 4, August 2026.
Abstract Conservation translocations are subject to considerable uncertainty and risk, of which disease is one of the most recognized. To address disease risks, several protocols for qualitative disease risk analysis (qDRA) exist and are used for responsible conservation translocation planning.
John G. Ewen   +13 more
wiley   +1 more source

Osteometría de falanges proximales de camélidos sudamericanos modernos. Variabilidad, estándares métricos y su importancia como conjunto comparativo para la interpretación de restos hallados en contextos arqueológicos

open access: yesRevista del Museo de Antropologia, 2009
Las medidas obtenidas a partir de huesos del esqueleto apendicular de camélidos sudamericanos han sido utilizadas en los últimos años como insumo básico para interpretar distintos aspectos relacionados con su asignación especifica, manejo de rebaños y ...
Andrés D. Izeta   +2 more
doaj  

Melanism in salamanders: effects of insularity, sex and size on dorsal colouration in Salamandra salamandra

open access: yesJournal of Zoology, Volume 329, Issue 4, Page 340-352, August 2026.
In this study we tested the effects of insularity on amphibian colouration using the fire salamander as a model system. Although increased melanism was not a consistent pattern across all islands, salamanders from one island exhibited higher proportions of black pigmentation than mainland populations, while insular populations overall showed reduced ...
L. Alarcón‐Ríos   +2 more
wiley   +1 more source

Estructura espacio­temporal de la variabilidad intraestacional en el trópico [PDF]

open access: yes, 2006
La variabilidad intraestacional es un modo importante y coherente de oscilación del sistema climático. La variabilidad de la precipitación en la escala intraestacional es particularmente importante en el trópico y en especial en la cuenca del Océano ...
Webster, Peter John   +3 more
core  

Comportamiento meiótico de diferentes especies de lulo, Solanum sp

open access: yesActa Agronómica, 2010
Se realizó un análisis del comportamiento meiótico de las especies de lulo S. hirtum, S. quitoense y S. sessiliflorum, siguiendo la metodología convencional para los estudios de microsporogénesis.
Nancy Maricela Pareja Ordóñez   +3 more
doaj  

Home‐Based Versus In‐Hospital Care in Pediatrics: A Systematic Review of Cost‐Effectiveness Studies

open access: yesWorld Medical &Health Policy, Volume 18, Issue 2, June 2026.
ABSTRACT Home‐based care has emerged as a potential alternative to traditional hospital‐based care for children and adolescents worldwide. This systematic review aimed to systematically gather and critically assess the available evidence on the cost‐effectiveness of home‐based versus in‐hospital care for pediatric populations globally.
Luís Carlos Lopes‐Júnior   +8 more
wiley   +1 more source

Análisis económico del sector bananero y su relación con El Niño Oscilación del Sur (ENOS) en la provincia de El Oro (2001-2014)

open access: yesRevista Tecnológica, 2016
Resumen. La producción y exportación de banano en el Ecuador se inició en 1948, El Oro es la segunda provincia más productiva, ésta actividad agrícola es una de las principales fuentes de divisas para el país.
Kennedy Vinicio Cabrera Verzosa   +3 more
doaj  

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