Results 151 to 160 of about 11,793,694 (293)

Abolición gradual y libertades vigiladas en el Río de la Plata. La política de control de libertos de 1813

open access: yes, 2016
El Reglamento para la educacion y ejercicio de los libertos de 1813 fue redactado el 6 de marzo por la Asamblea Constituyente luego de haber sancionado el 3 de febrero un “Decreto declarando libres a los hijos de las esclavas”.
M. Candioti
semanticscholar   +1 more source

Teachers promoting advocacy through social justice English language education: A collaborative action research study

open access: yesThe Modern Language Journal, EarlyView.
Abstract This article reports on a 2‐year collaborative action research project carried out in 2022–2023, which investigated the intersection of social justice and advocacy in English language teaching. The aim was to describe how English as a foreign language (EFL) teachers working at state secondary schools in two Argentinian cities harnessed their ...
Darío Luis Banegas   +3 more
wiley   +1 more source

Exploring natural sunscreens: UVB protection and antioxidant properties in gadusol‐rich fish roes extracts

open access: yesPhotochemistry and Photobiology, EarlyView.
Gadusol‐rich extracts provide effective UVB protection and antioxidant activity in HaCaT cells and C. elegans, highlighting their potential as natural photochemoprotective agents for pharmaceutical and cosmetic applications. It also demonstrates remarkable in vitro antioxidant capacity and thermal stability over time.
Rocío Isla Naveira   +9 more
wiley   +1 more source

Estimating costs of ecological restoration across degradation scenarios in South Brazilian grasslands

open access: yesRestoration Ecology, EarlyView.
Abstract Introduction Grassland ecosystems are among the most threatened worldwide, and the Campos Sulinos—a region of subtropical grasslands in southern Brazil—experiences degradation driven by multiple factors. This study provides initial cost estimates for different restoration approaches, offering guidance for technical and budgetary planning ...
Thais Michel   +2 more
wiley   +1 more source

Microbial influence on the formation and subsequent changes of vertebrate tracks: field experiments on present‐day coastal sediments

open access: yesSedimentology, EarlyView.
ABSTRACT The presence of microbial mats is often invoked to explain the good preservation of vertebrate tracks, because they can cover and biostabilize such structures. However, microbial influence on the sediment properties when the track is made and on the track characteristics has not been so thoroughly analysed.
Isabel Emma Quijada   +4 more
wiley   +1 more source

Fluctuación anual de la masa corporal, tamaño de gónadas y muda de Guira guira (Aves Cuculiformes: Cuculidae)

open access: yesActa Zoológica Lilloana, 2010
Se describen las relaciones entre masa corporal, tamaño de gónadas y muda postnupcial del Pirincho Guira guira sobre la base de 92 especímenes (53 machos y 39 hembras), coleccionados en el partido de Magdalena (provincia de Buenos Aires) entre 1991 y ...
Carlos A. Darrieu   +2 more
doaj  

Near‐Synchronous Cambrian Evolution of the Transbrasiliano‐Kandi‐4°50′ Shear Zone in South America and Africa

open access: yesTerra Nova, EarlyView.
ABSTRACT The Transbrasiliano‐Kandi‐4°50′ (TK4) shear zone in western Gondwana crosscuts South America and NW Africa for at least 6000 km. Despite its impressive size, the timing of the main episode of dextral ductile shearing is uncertain. We present detailed in situ multi‐mineral geochronology of mylonites from both Brazil and Algeria supporting that ...
F. A. Caxito   +4 more
wiley   +1 more source

Características clínico-demográficas en adultos con fibrosis quística

open access: yesArgentinian Journal of Respiratory and Physical Therapy
Objetivo: Describir las características demográficas y clínicas de sujetos mayores de 16 años con diagnóstico de FQ que ingresaron al servicio de kinesiología.
Bruno Roberts   +3 more
doaj   +1 more source

Depositional processes and stratigraphic evolution of the Campanian deltaic system of La Anita Formation, Austral-Magallanes Basin, Patagonia, Argentina [PDF]

open access: yes, 2019
Coastal depositional systems are commonly classified in terms of the relative interaction of wave, tide and fluvial processes. The La Anita Formation represents the opportunity to study and better understand coastal sedimentary systems.
Cereceda, Abril   +4 more
core   +2 more sources

Metodología para la evaluación de la calidad de vida urbana

open access: yesBitácora Urbano Territorial, 2010
El trabajo expone aspectos teórico-conceptuales y primeros resultados de un modelo de calidad de vida urbana –CVU–. Considera las interacciones entre los servicios básicos, la infraestructura y los aspectos ambientales, la cobertura y/o área de ...
Carlos Discoli   +6 more
doaj  

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