Results 71 to 80 of about 2,857,029 (351)

Phenotypic evolution in microalgae: a dramatic morphological shift in Dictyosphaerium chlorelloides (Chlorophyta) after exposure to TNT [PDF]

open access: yes, 2006
Phenotypic evolution in microalgae: a dramatic morphological shift in Dictyosphaerium chlorelloides (Chlorophyta) after exposure to TNT. The occurrence of rapid morphological evolution in the microalga Dictyosphaerium chlorelloides (Chlorophyta) was ...
Costas, Eduardo   +3 more
core   +3 more sources

Efectos del cambio climático: Una mirada al Campo

open access: yesRevista Ciência Agrícola, 2018
El cambio climático afecta de manera sensible al sector agropecuario, lo cual genera conflictos sociales, pérdidas económicas y pone en riesgo la seguridad alimentaria de la población; tal como se ha podido evidenciar durante los periodos de lluvias ...
Luis Enrique Arteaga N.   +1 more
semanticscholar   +1 more source

Participatory fuzzy cognitive modelling reveals leverage points for agroecological adoption in the Central Valleys of Oaxaca

open access: yesPeople and Nature, EarlyView.
Abstract Global institutions are increasingly calling for an agroecological transition of our food systems to promote sustainable farmer livelihoods, safeguard agrobiodiversity and foster socio‐ecological resilience to a changing climate. Yet adoption remains limited, and there is a paucity of research examining how local conditions enable and ...
Gabriela Marie Garcia   +5 more
wiley   +1 more source

The visible and invisible drivers of biocultural loss in the Amazon

open access: yesPeople and Nature, EarlyView.
Abstract The Amazon is rapidly approaching an ecological tipping point driven by deforestation, forest degradation and global climate change. These are visible issues that receive increasing political and public attention. However, the accelerating biocultural loss in the Amazon, including the extinction of Indigenous languages, the disruption of ...
Torsten Krause   +5 more
wiley   +1 more source

Bárbaros e infieles: Proyectos educativos para indígenas en la Patagonia Norte (1890-1945)

open access: yesHistoria Social y de la Educación, 2018
La presencia indígena es una de las grandes ausencias de la historiografía de la educación. A partir del silencio y la invisibilización estas poblaciones quedaron en los márgenes de los relatos sobre la construcción del sistema educativo. Sin embargo, al
Agustin Assaneo   +1 more
doaj   +1 more source

Push-Button Democracy [PDF]

open access: yesARQ, 2023
Bajo el atractivo no convencional de cultivos hidropónicos y una selva flotante, la propuesta de Cedric Price para las orillas del río Clyde en Glasgow (1970) se basa en su noción de “infraestructura de diseño”.
Manuel Rodrigo De la O Cabrera
doaj  

Epistemic opacity in Antarctic science: Unknowing the last frontier

open access: yesPeople and Nature, EarlyView.
Abstract Antarctica is facing intensifying pressures from climate change, industrial fishing, tourism and renewed geopolitical competition, even as scientific activity on the continent reaches unprecedented levels. We argue that this proliferation of research often fails to deliver the integrated, policy‐relevant knowledge needed for precautionary ...
Virginia Morandini, Álvaro Soutullo
wiley   +1 more source

Factores generadores de cambio en los poblados del valle central de Puebla

open access: yesAcademia XXII, 2015
Las ciudades estudiadas en este trabajo son: Amozoc, Tepeaca, Acatzingo, Quecholac, Tecamachalco, Chalchicomula y Tehuacán. Fueron fundadas en el siglo XVI y tuvie- ron relevancia en la estructura de comunicación y comercio de la Nueva España y del ...
Juan Manuel Márquez Murad
doaj   +1 more source

Cambio social y cambio tecnológico

open access: yesRevista Ciencias y Humanidades
In this text we had try to address some relevant dimensions in the relation between science, technology and society. As a central point, the article is focused on technological change, his original context conditions, different modalities and the dependence relation that is founded between central and peripheral countries in terms of transfer and ...
openaire   +4 more sources

El carbono orgánico del suelo y su papel frente al cambio climático

open access: yes, 2018
espanolEl cambio climatico es un problema ambiental al que debe hacer frente la sociedad mundial, sin embargo, hay alternativas para mitigar dicho fenomeno y en ese contexto, el suelo puede jugar un papel importante.
H. Orjuela
semanticscholar   +1 more source

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