Results 11 to 20 of about 717,821 (221)

Bourdieu en la educación científica: consecuencias para la enseñanza y la investigación [PDF]

, 2012
 A lo largo de las últimas décadas, el desarrollo y la consolidación de un abordaje sociocultural a la educación científica han dado lugar a un creciente interés por referencias de ámbitos como la sociología de la ciencia y la sociología de la educación ...
Lima Junior, Paulo, Ostermann, Fernanda, Pinheiro, Nathan   +2 more
core   +3 more sources

Nutrient input from the Colorado River to the northern Gulf of California is not required to maintain a productive pelagic ecosystem

Ciencias Marinas, 2015
The high phytoplankton production (PP) of the northern Gulf of California (NGC) supports a rich biodiversity and fisheries with high yields. The NGC is the habitat of the vaquita (Phocoena sinus), the cetacean most at risk of extinction in the world ...
Mario Rafael Ramírez-León, Saúl Álvarez-Borrego, Cuauhtémoc Turrent-Thompson, Gilberto Gaxiola-Castro, Gisela Heckel Dziendzielewski   +4 more
doaj   +1 more source

Micromollusk families in 2 contrasting seasons in Bahia de los Angeles, Gulf of California, Mexico

Ciencias Marinas, 2023
Marine mollusks provide important ecosystem services. They create habitats for benthic organisms, filter water, biodeposit organic carbon in the seafloor, and serve as food sources for other organisms. Studies of mollusk diversity require time-consuming
Elena Solana-Arellano, Victoria Díaz-Castañeda, Olga Flores-Uzeta   +2 more
doaj   +1 more source

Genetic connectivity of the endangered brown sea cucumber Isostichopus fuscus in the northern Gulf of California revealed by novel microsatellite markers

Revista Mexicana de Biodiversidad, 2018
Isostichopus fuscus is an economically important sea cucumber that has been highly exploited along its distribution range in the eastern Pacific. The significant population decline is responsible for its listing as endangered in the IUCN Red List ...
José Miguel Ochoa-Chávez, Miguel Ángel Del Río-Portilla, Luis Eduardo Calderón-Aguilera, Axayácatl Rocha-Olivares   +3 more
doaj   +1 more source

Numerical modeling of seasonal and mesoscale hydrography and circulation in the Mexican Central Pacific

Ciencias Marinas, 2012
Based on results from a ROMS numerical model, the dynamics of the Mexican Central Pacific was studied during three years (2003–2005). The model reproduces the mean and seasonal variability of sea surface temperature, as well as mesoscale eddies and ...
DA Pantoja, SG Marinone, A Parés-Sierra, F Gómez-Valdivia   +3 more
doaj   +1 more source

Engineering Peripheral Metal‐Oxide Catalysis: Interparticle Spacing in Cu/ZrO2 Catalysts for Methanol Synthesis by CO2 Hydrogenation

Angewandte Chemie, EarlyView.
The catalytically active periphery around oxide‐supported metal nanoparticles is key in reactions featuring marked metal‐oxide promotional effects. For Cu/ZrO2 CO2 hydrogenation catalysts, a Cu interparticle spacing of ∼15 nm optimizes methanol production rate and selectivity.
Iván López‐Luque, Jannis Hack, Tania Ródenas, Wilson Henao, Bernat Mundet, Prathamesh Patil, Christian M. Pichler, Carlo Marini, Giovanni Agostini, Daniel M. Meier, Gonzalo Prieto   +10 more
wiley   +2 more sources

The Gulf of California is a source of carbon dioxide to the atmosphere

Ciencias Marinas, 2013
Water exchange between the Gulf of California and the Pacific Ocean has a significant vertical component (VCWE). Surface (0–200 m) gulf water flows out into the Pacific Ocean and deep (200–600 m) water flows into the gulf.
Claudia Rodríguez-Ibáñez, Saúl Álvarez-Borrego, SG Marinone, José Rubén Lara-Lara   +3 more
doaj   +1 more source

Annual and semiannual variations of phytoplankton biomass and production in the central Gulf of California estimated from satellite data

Ciencias Marinas, 2013
Surface waters of the Midriff Islands region of the Gulf of California persistently have the lowest temperatures (SST) and the highest nutrient concentrations of all surface waters of the gulf. The purpose of this work was to characterize the annual and
Laura Lucero Álvarez-Molina, Saúl Álvarez-Borrego, José Rubén Lara-Lara, SG Marinone   +3 more
doaj   +1 more source

¿Puede hablarse de consenso constructivista en la educación científica? [PDF]

, 1999
In this paper we analyse some of the criticisms that are being made to the «constructivist paradigm» and their implications on the development of the didactic of the sciences as a theoretical body ...
Carrascosa Alís, Jaime, Dumas Carré, Andrée, Furió, Carles, Gallego Badillo, Rómulo, Gené Duch, Anna, Gil Pérez, Daniel, González, Eduardo, Guisasola Aranzabal, Jenaro, Martínez-Torregrosa, Joaquín, Pessoa de Carvalho, Anna M., Salinas, Julia, Tricárico, Hugo, Valdés, Pablo   +12 more
core   +3 more sources

Temperature, salinity, nutrients and chlorophyll a in coastal waters of the Southern California Bight

Ciencias Marinas, 2001
The seasonal variability of dissolved inorganic nutrients (phosphates, PO–34; nitrates, NO–3; nitrites, NO–2) and chlorophyll a was studied during five surveys in nearshore waters of the southern region of the Southern California Bight (SCB).
TL Espinosa-Carreón, G Gaxiola-Castro, JM Robles-Pacheco, S Nájera-Martínez   +3 more
doaj   +1 more source