Results 41 to 50 of about 116,373 (163)

When Infrastructure Pushes Residents Out: High‐Speed Rail and Tourism Outflows

open access: yesJournal of Regional Science, EarlyView.
ABSTRACT This paper examines the impact of high‐speed rail (HSR) connectivity on both inbound and outbound tourism inflows. Leveraging the opening of a new HSR line connecting a northern Spanish region with mainland Spain, we employ a triple difference‐in‐differences design combined with inverse probability weighting (IPW) to evaluate the causal effect
David Boto‐García   +2 more
wiley   +1 more source

Los mapas conceptuales, las TIC y el e-learning

open access: yesRevista Iberoamericana de Educación, 2007
A principio de los años 60 las computadoras habían comenzado a extenderse por las universidades, sobre todo en Estados Unidos y su uso empezó a ser parte integrante de la formación de los estudiantes universitarios en algunas carreras.
Lydia Rosa Ríos Rodríguez   +4 more
doaj  

José Martí between two chronicles : editorial pressure and the relative autonomy of the modernista writer [PDF]

open access: yes, 2014
La producción de José Martí como cronista en los Estados Unidos para los diarios latinoamericanos El Partido Liberal, de México, y La Nación, de Argentina, estaba sujeta a diversas políticas editoriales.
Fridman, Federico
core  

Geophysical investigation of the Santa Marta impact structure—Piauí State, Brazil

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract The Santa Marta impact structure in northeastern Brazil, recognized as a partially preserved complex crater, was investigated through an integrated geophysical study employing magnetotelluric (MT) and gravity methods. Our research provides constraints on the crater's subsurface architecture.
Elienara Vasconcelos   +5 more
wiley   +1 more source

Una propuesta didáctica para el aprendizaje de la Física

open access: yesRevista Iberoamericana de Educación, 2006
Hoy en día se produce un gran impacto de la ciencia y la tecnología en la producción y la vida de las personas, provocando la necesidad apremiante de una formación científica masiva (UNESCO, 1993), lo que conduce a que el encargo social de la escuela ...
Guillermo Bernaza Rodríguez   +2 more
doaj  

Civilization and barbarism : two interpretations of the lettered role in the view of the modernizing project in Latin America : Sarmiento and Martí [PDF]

open access: yes, 2007
Se analizan las concepciones de Domingo Faustino Sarmiento y José Martí acerca del rol letrado en el programa modernizador de América Latina durante la segunda mitad del siglo XIX.
Olalla, Marcos
core  

Under the Cuban Flag: Notions of indigeneity at the end of the nineteenth century [PDF]

open access: yes, 2008
The chapter discusses how narratives of national sovereignty, personal freedom, and pro-indigenous movements were appropriated and deployed, for the benefit of the U.S.
Hulme, P
core   +1 more source

Bioconversion of carotenoids into high‐value crocins using a marine sponge carotenoid cleavage dioxygenase

open access: yesNew Phytologist, Volume 250, Issue 5, Page 3230-3246, June 2026.
Summary Carotenoids and apocarotenoids are widespread specialized metabolites, yet animals, including sponges, lack the ability to synthesize carotenoids de novo and must obtain them from dietary or microbial sources. The roles of carotenoid cleavage dioxygenases (CCDs) in marine animals remain largely unexplored. A CCD from the marine sponge Suberites
Elena Moreno‐Giménez   +11 more
wiley   +1 more source

Advances in Wine Yeast Autolysis: Biochemical and Molecular Mechanisms, and the Release of Organic Compounds in White and Sparkling Wines—An Updated Review

open access: yesComprehensive Reviews in Food Science and Food Safety, Volume 25, Issue 3, May 2026.
ABSTRACT Wine yeasts play a central role in alcoholic fermentation and significantly contribute to the sensory attributes of wines through cellular autolysis during lees aging (sur lie), especially in white wines. This process releases organic compounds that alter the wine's chemical and sensory profile.
José Ricardo Machado dos Santos   +1 more
wiley   +1 more source

The Almirall Project: a portal of 19 th century culture and thinking [PDF]

open access: yes, 2011
The Ateneu Barcelonès is a civil, private cultural association that has been a part of Spanish society and culture since 1860, having been founded with the aim of promoting dialogue and disseminating knowledge about the country's artistic, historical and
Alcaraz-Martínez, Rubén   +4 more
core  

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