Results 51 to 60 of about 2,100,212 (183)

Sistemas de tuberías y fittings, de polipropileno para la conducción de agua potable en edificación [PDF]

open access: yes, 2008
Tesis (Ingeniero Constructor)El siguiente trabajo de título tiene como objetivo dar a conocer un producto confiable capaz de transportar agua potable, soportando altas temperaturas y presiones, eliminando así filtraciones.
Larrea Quezada, Miguel Angel
core  

Anthropogenic or Natural Dispersal: Case of the Spiny‐Tailed Iguanas (Ctenosaura) on Clarion Island, Mexico

open access: yesEcology and Evolution, Volume 15, Issue 10, October 2025.
Species can colonize oceanic islands by both natural and human‐assisted dispersal and human‐caused species introductions have had catastrophic effects on ecosystems around the world. The Spiny‐tailed Iguanas inhabiting Clarion Island were previously considered introduced. Molecular data and analyses support iguanas' arrival on Clarion Island by natural
Daniel G. Mulcahy   +5 more
wiley   +1 more source

The Rise of the Far Right Party in France

open access: yesRevista Maracanan, 2017
It has been more than forty years since the French National Front is recognized for being enticed in mammoth polemics while sitting on a secondary position within French politics.
Gustavo Granado
doaj   +1 more source

¿Oficios de tinieblas? Castellanos y Glantz frente al machismo nacional del culturalismo mexicanista [PDF]

open access: yes, 2015
Tomando como punto de partida el entrecruce entre nacionalismo y género, este artículo busca redimensionar las escrituras de Rosario Castellanos y Margo Glantz como dos instancias que trastocan, niegan o deconstruyen la historiografía machista ...
Zabalgoitia Herrera, Mauricio
core   +1 more source

Livelihood resilience: The role of social‐ecological filters in a Globally Important Agricultural Heritage System of southern Chile

open access: yesPeople and Nature, Volume 7, Issue 8, Page 1889-1904, August 2025.
Abstract The global agrifood system faces significant threats due to rapid and interconnected social‐ecological changes, including climate change, land‐use shifts, demographic changes and emerging diseases. Small‐scale farmers are among the most vulnerable groups to these changes due to their direct dependence on their environment.
Julián Caviedes   +7 more
wiley   +1 more source

Leopoldo Múnera Ruiz. Rupturas y continuidades (poder y movimiento popular en Colombia, 1968 – 1988)

open access: yesHistoria y Espacio, 2000
La reseña que hace el Profesor Lenin Flórez sobre la obra del autor: Leopoldo Múnera, va encaminada a mostrar cuál fue la relevancia del Frente Nacional, y su respectivo significado para la historia presente de nuestro país.
Lenin Flórez
doaj   +1 more source

Momento económico (5) [PDF]

open access: yes, 1984
En este número. Abril de 1984 Temas de hoy, 2/ El paro cívico nacional, Fabio Barbosa y Ana Luisa González, 3/ La construcción de un proyecto de masas: la Asamblea Nacional Obrera, Campesina y Popular, Gustavo Ldpez Pardo, 6/ El descontento entre ...
Del Valle Rivera, María del Carmen   +6 more
core  

Mutational load and adaptive variation are shaped by climate and species range dynamics in Vitis arizonica

open access: yesNew Phytologist, Volume 247, Issue 2, Page 998-1014, July 2025.
Summary Genetic load can reduce fitness and hinder adaptation. While its genetic underpinnings are well established, the influence of environmental variation on genetic load is less well characterized, as is the relationship between genetic load and putatively adaptive genetic variation.
Christopher J. Fiscus   +3 more
wiley   +1 more source

Poesía niuyorriqueña y narco-cultura: La vida en los márgenes [PDF]

open access: yes, 2014
El mundo de las drogas ocupa un lugar central en la poética desarrollada por la primera generación literaria de puertorriqueños diaspóricos. De enorme potencial contestatario , estas manifestaciones culturales se constituyeron como verdaderos nichos ...
López, Alejo
core   +1 more source

Racial and ethnic disparities in obstetric anal sphincter injury: cross‐sectional study in the USA

open access: yesUltrasound in Obstetrics &Gynecology, Volume 65, Issue 6, Page 778-789, June 2025.
ABSTRACT Objectives Racial disparities in obstetric anal sphincter injury (OASI) are poorly understood; their investigation by parity, obstetric history and mode of delivery may provide insight into which individuals are at the greatest risk for OASI. We aimed to quantify the association of race and ethnicity with OASI, stratified by parity, obstetric ...
M. Rajasingham   +5 more
wiley   +1 more source

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