Results 31 to 40 of about 787,046 (217)

Note on the Pelecaniformes, Ciconiiformes, terns (Sterninae) and black skimmers (Rynchopinae) along the Costa Chica of Oaxaca, Mexico

open access: yesCiencias Marinas, 1998
To study the coastal birds of Oaxaca's Costa Chica, we visited this region in the fall of 1995 and the summer and fall of 1996. During these visits we focused on coastal lagoons and barrier beaches, although we also made two sea trips and visited sandy ...
E Mellink, J Luévano, I Zuria
doaj   +1 more source

Evaluación de la revista Comunicar: Revista Científica Iberoamericana de Comunicación y Educación [PDF]

open access: yes, 2008
Se realiza una evaluación de la revista científica Comunica: Revista Científica Iberoamericana de Comunicación y Educación. Para ello se sigue una metodología propuesta que incluyen aspectos formales y gestión editorial así como indicadores de ...
Martinez-Avila, Daniel   +1 more
core   +1 more source

In Situ Amine Formation to Modulate MOF‐Derived PdIn N‐Doped Carbon Catalysts

open access: yesAdvanced Materials, EarlyView.
An amine‐assisted approach converts PdIn‐MOF into PdIn intermetallic nanoparticles embedded in N‐doped carbon. In situ‐generated amines trigger early Pd nucleation, producing smaller PdIn domains than direct pyrolysis. Amine sterics and basicity tune composition and particle size, while solvent and amine co‐determine textural features.
Gonzalo Egea   +9 more
wiley   +1 more source

Effects of seasonal and interannual events on satellite-derived phytoplankton biomass and production in the southernmost part of the California Current System during 2003–2016

open access: yesCiencias Marinas, 2018
We characterized the spatial and temporal variations of sea surface temperature (SST), satellite-derived chlorophyll a (Chlsat) con-centration, and phytoplankton production (PP) along two 300-km long transects in the southernmost part of the California ...
José Carlos Ortiz-Ahumada   +2 more
doaj   +1 more source

La educación científica : percepción de los alumnos al finalizar educación primaria [PDF]

open access: yes, 2013
Este trabajo pretende poner de manifiesto las actitudes de los alumnos al finalizar la Educación Primaria hacia la Ciencia, así como su percepción de cómo trabajaron las ciencias en esta etapa.
López Luengo, Mª Antonia   +3 more
core   +2 more sources

La contribución de la ciencia a la cultura ciudadana [PDF]

open access: yes, 2004
El propósito de este trabajo es analizar las contribuciones de la ciencia a la cultura ciudadana, con objeto de fundamentar las propuestas de alfabetización científica como una componente esencial de la educación, susceptible de favorecer la ...
Gil Pérez, Daniel   +1 more
core   +2 more sources

Horizons and Challenges: An Overview of Strategies for Circular Economy Education in Schools

open access: yesSustainable Development, EarlyView.
ABSTRACT Education is fundamental to preparing future professionals for the transition to a circular economy (CE), and it requires the development of competences from the earliest stages of schooling. Nevertheless, teachers continue to face challenges in integrating the circular economy into classroom practice. This article presents a literature review
Maiara Lais Marcon, Simone Sehnem
wiley   +1 more source

Satellite-derived phytoplankton biomass and production variability in 2 contrasting coastal areas: off southern California and off northern Baja California

open access: yesCiencias Marinas, 2017
In order to compare phytoplankton biomass (satellite-derived chlorophyll, Chlsat) and production (PP), and sea surface temperature (SST) between the regions north and south of the Ensenada Front, time series were generated from satellite imagery for 250-
Uriel Mirabal-Gómez   +2 more
doaj   +1 more source

Educación ciudadana y alfabetización científica: mitos y realidades [PDF]

open access: yes, 2006
La alfabetización científica de la ciudadanía, en opinión de muchos expertos y responsables políticos, constituye hoy día un componente básico de la educación ciudadana. Pero ¿es necesaria, realmente, una formación científica para toda la ciudadanía? ¿Es
Gil Pérez, Daniel   +1 more
core  

Physical origin of the high energy optical response of three-dimensional photonic crystals [PDF]

open access: yes, 2007
The physical origin of the optical response observed in three-dimensional photonic crystals when the photon wavelength is equal or lower than the lattice parameter still remains unsatisfactorily explained and is the subject of an intense and interesting ...
Depine, Ricardo A.   +3 more
core   +2 more sources

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