Results 61 to 70 of about 23,933 (167)

El Análisis Didáctico. Una posibilidad de Transformar las Prácticas en Física: El caso del Movimiento

open access: yesRevista Científica, 2019
Se plantean como objeto central el Diseño de Unidades Didácticas para los Programas de Curso Cinemática y Dinámica y el Problema del Movimiento: Una propuesta para formación de profesores en la Licenciatura Matemáticas y Física, como parte del proyecto ...
Alexandra Castro Hidalgo   +2 more
doaj  

Wild or Introduced? Investigating the Genetic Landscape of Cacao Populations in South America

open access: yesEcology and Evolution, Volume 15, Issue 7, July 2025.
Cacao populations span a continuum from wild to domesticated forms, shaped by complex patterns of human influence and selection. Using RAD‐sequencing, we show that native Upper Amazonian populations harbor the highest genetic diversity, while the Guiana group likely represents an isolated wild lineage and Amelonado shows clear signals of artificial ...
Matheus Colli‐Silva   +3 more
wiley   +1 more source

Illegal trade of crocodylians in Colombia: Spatiotemporal dynamics and implications on conservation efforts

open access: yesConservation Science and Practice, Volume 7, Issue 7, July 2025.
Crocodylian conservation effectiveness has been limited by illegal trade as well as changes in control and trade policies. We assessed spatiotemporal dynamics of illegal crocodylian trade in Colombia from 2010 to 2022 based on data collected by regional and district environmental authorities and discussed its implications on conservation efforts ...
Edison D. Bonilla‐Liberato   +4 more
wiley   +1 more source

Climate Disasters, Armed Conflict, and Forced Displacement: A 23‐Year Spatial Analysis in Colombia

open access: yesSocial Science Quarterly, Volume 106, Issue 4, July 2025.
ABSTRACT Objective This study examines the spatial dynamics of climate disasters, violence, and internal displacement in Colombia. Methods We combine data on disasters, displacement, and conflict violence at the municipal level for all years between 1998 and 2021.
Juan David Gelvez, Leo Bauer
wiley   +1 more source

Estudio del desempeño mecánico de una mezcla asfáltica natural, proveniente de la mina de Pavas, en el departamento del Caquetá [PDF]

open access: yes, 2019
Trabajo de InvestigaciónEl presente trabajo de investigación se fundamenta en la identificación de las características físico mecánicas de una mezcla de asfalto natural extraída tal como sale de la mina Las Pavas, ubicada en la parte norte del ...
Cruz-Chala, Diego Enrique   +1 more
core  

Spatiotemporal assessment of benthic macroinvertebrate communities in the Bermejo River Basin in the Ecuadorian Amazonia

open access: yesLimnology and Oceanography Letters, Volume 10, Issue 3, Page 371-380, June 2025.
Abstract The Cofán communities rely on the Cofán Bermejo Ecological Reserve for their survival and cultural practices. Due to the rugged and inaccessible topography of the reserve in the Northern Ecuadorian Amazon region, limited biomonitoring and ecological characterization studies of the ecosystem health have been conducted.
Federico Sinche Chele   +8 more
wiley   +1 more source

Análisis de la ruta para atención a victimas incluida en el programa presidencial de acción integral contra minas antipersonal paicma en el departamento de Caquetá 2007 - 2010 [PDF]

open access: yes, 2013
La ruta de atención a víctimas es el instrumento que ha implementado el gobierno nacional a través del Programa Presidencial de Acción Integral contra las Minas Antipersonal PAICMA, para la protección de derechos y prestación de asistencia médica a las ...
Cañas Olejua, Henny Milena   +1 more
core  

A novel combination of in vitro propagation and hydroponic culture for hybrid cacao (Theobroma cacao) plants

open access: yesApplications in Plant Sciences, Volume 13, Issue 3, May-June 2025.
Abstract Premise Currently, there is a lack of controlled cultivation methods for cacao (Theobroma cacao), a plant species with high commercial value. One major concern is the tendency of cacao plants to accumulate high concentrations of cadmium (Cd), a heavy metal with high toxicity to living organisms.
Luis David Vera Pinargote   +2 more
wiley   +1 more source

Stratégies de diversification et développement alternatif à la culture de la coca en Amazonie colombienne (Caqueta) : analyse du cas colombien dans la sous-région [PDF]

open access: yes, 2008
L'objectif de cet article est de montrer dans la problématique globale des cultures illicites des contreforts andins en zone amazonienne, les efforts originaux entrepris en Colombie amazonienne, dans le Caqueta, entre 1998 et 2005, pour mener une ...
Penot, Eric, Rivano, Franck
core  

BioTIME 2.0: Expanding and Improving a Database of Biodiversity Time Series

open access: yesGlobal Ecology and Biogeography, Volume 34, Issue 5, May 2025.
ABSTRACT Motivation Here, we make available a second version of the BioTIME database, which compiles records of abundance estimates for species in sample events of ecological assemblages through time. The updated version expands version 1.0 of the database by doubling the number of studies and includes substantial additional curation to the taxonomic ...
Maria Dornelas   +484 more
wiley   +1 more source

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