Results 21 to 30 of about 22,927 (153)

Páramo Ecosystems in Ecuador’s Southern Region: Conservation State and Restoration

open access: yesAgronomy, 2020
The páramo is home to a significant proportion of global biodiversity and provides essential services for the development of life for millions of people in Ecuador.
Víctor J. García   +5 more
doaj   +1 more source

Effect of the Andean Geography and Climate on the Specialized Metabolism of Its Vegetation: The Subtribe Espeletiinae (Asteraceae) as a Case Example

open access: yesMetabolites, 2021
The Andean mountains are ‘center stage’ to some of the most spectacular examples of plant diversifications, where geographic isolation and past climatic fluctuations have played a major role.
Guillermo F. Padilla-González   +2 more
doaj   +1 more source

El páramo: aula abierta para el aprendizaje de las ciencias naturales

open access: yesEducación y Ciencia, 2013
En Suramérica, entidades y agrupaciones de personas han buscado mejorar las condiciones ambientales y sociales de los ecosistemas de páramos a partir del Proyecto “Páramo Andino”, mediante la construcción de alianzas a lo largo del corredor ecológico ...
Inés Andrea Sanabria Totaitive   +1 more
doaj   +1 more source

Mapeo semiautomático de áreas quemadas en Chimborazo-Ecuador utilizando medias compuestas de dNBR con umbrales ajustados

open access: yesRevista de Teledetección, 2023
En este trabajo se implementó una metodología semiautomática para la delimitación de áreas quemadas en la provincia de Chimborazo en Ecuador, durante el periodo 2018-2021 utilizando la base de datos de incendios forestales suministrada por el Programa ...
César Cisneros-Vaca   +3 more
doaj   +1 more source

Effects of land use on soil CO2 flux in the Paramo de Guerrero, Colombia

open access: yesAgronomía Colombiana, 2016
The Andean paramo is an important global carbon sink and has a fundamental ecological function of capture, regulation and supply of water resources. The soil CO2 efflux is a natural process through which the carbon is released into the atmosphere by ...
Diego Peña-Quemba   +2 more
doaj   +1 more source

Novedades del orden Pucciniales sobre la familia Asteraceae en páramos de Antioquia (Colombia)

open access: yesCaldasia, 2018
Se presentan los Pucciniales colectados sobre la familia Asteraceae en el Páramo del Sol, Páramo Serranía las Baldías, Páramo de Sonsón y Páramo de Santa Inés, ubicados en el departamento de Antioquia (Colombia).
Katherin Maritza Vanegas-B   +1 more
doaj   +1 more source

Anatomy and variation in the paraphyletic Mosasaurus lemonnieri assemblage from the Craie phosphatée de ciply, Belgium

open access: yesThe Anatomical Record, EarlyView.
Abstract Nineteenth century excavations of the Ciply‐Malogne Phosphatic Chalk Formation in Hainaut, Belgium, yielded over 50 partial mosasaur skeletons, the majority of which were referred to the species Mosasaurus lemonnieri Dollo, 1889. In the years since, this taxon has experienced a complicated taxonomic history, and its exceptional hypodigm has ...
Henry S. Sharpe   +3 more
wiley   +1 more source

Mulheres que habitavam Comala: personagens femininas em Pedro Páramo [PDF]

open access: yes, 2011
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Comunicação e Expressão, Programa de Pós-Graduação em Literatura, Florianópolis, 2011Este trabalho realiza uma análise das personagens femininas do romance Pedro Páramo, de Juan ...
Bezerra, Mara Gonzalez
core  

Análisis y evaluación de riesgos de arsénico en las fuentes de agua de las ciudades de Cuenca y Azogues, Ecuador

open access: yesMaskana, 2021
El arsénico (As) es un elemento tóxico presente en el medio ambiente que representa una amenaza para la salud de los consumidores. Para identificar el contenido de arsénico en ríos, páramos y pozos de la ciudad de Cuenca, y en ríos de la ciudad de ...
Guillermina Pauta-Calle   +4 more
doaj   +1 more source

A biomimetic ducted nipple reveals gestational age‐dependent deficits in suction generation in a neonatal pig model

open access: yesThe Anatomical Record, EarlyView.
Abstract All infant mammals must suckle in order to effectively acquire milk from a nipple. Yet, not all infants are able to do so. Preterm infants in particular face significant feeding challenges, often failing to establish successful breastfeeding due to complex neurophysiologic challenges.
Max Sarmet   +9 more
wiley   +1 more source

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