Results 21 to 30 of about 790,041 (168)
Effect of the oxygen minimum zone on the second chlorophyll maximum
Ciencias Marinas, 2009 Field data collected during June 2005 were used to determine the relationship between the second fluorescence maximum (FMax), the top of the oxygen minimum zone (OMZ), and physical processes (coastal currents, eddies, and upwelling) in the northern ...
J Cepeda-Morales +4 more
doaj +1 more source
Fast estimation of local magnitudes from non-standard Wood-Anderson, short period, seismograms
Geofísica Internacional, 2003 Se presenta un método para la evaluación rápida de magnitudes locales a partir de sismogramas (analógicos o digitales) distintos de los Wood-Anderson estándar.
F. A. Nava +5 more
doaj +1 more source
Mitochondrial variability of dolphinfish Coryphaena hippurus populations in the Pacific Ocean
Ciencias Marinas, 2006 Patterns of genetic structure among marine populations involve a variety of dispersal mechanisms and spatial scales. Pelagic species, such as the dolphinfish Coryphaena hippurus, epitomize the open and continuous nature of the marine environment due to ...
A Rocha-Olivares +4 more
doaj +1 more source
Microzooplankton grazing impact on the phytoplankton community at a coastal upwelling
Ciencias Marinas, 2017 Experiments were carried out at a coastal upwelling site (ENSENADA station) off northern Baja California (México) during autumn 2015 (OCT-15) and spring 2016 (APR-16) to estimate phytoplankton daily growth (µo) and mortality (m) rates and to assess ...
Lorena Linacre +4 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 +12 more
core +3 more sources
Ciencias 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
Reformas en educación científica [PDF]
, 2004 Se presentan algunas características de las reformas educativas en ciencia, matemática y tecnología que se llevan a cabo en Latinoamérica. Se discute como estas reformas intentan reconstruir el contenido científico, matemático y tecnológico pero en el ...
Cajas, Fernando
core
Advanced Materials, EarlyView.In this work, low bandgap (≈1.55 eV) semitransparent perovskite solar cells (ST‐PSCs) having thin (thickness < ≈100 nm) perovskite layers and transparent conductive oxide‐based rear electrodes are fabricated using vacuum‐deposition methods. Two different ST‐PSCs demonstrated a high light utilization efficiency value of 4.2 (PCE: 9.26% and AVT: 45.3 ...
Abhyuday Paliwal +9 more
wiley +1 more source
La Acadèmia d’Educació Física de Catalunya. Un intento para legitimar un espacio institucional y doctrinal de la educación física en la II República [PDF]
, 2013 Durante la II República española (1931-1939), en Catalunya se proyectaron algunas de las principales instituciones de la educación física y del deporte que continúan presentes. Esta institucionalización vino espoleada por la Acadèmia d’Educació Física de
Torrebadella i Flix, Xavier
core +4 more sources
Ciencias 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