Results 1 to 10 of about 2,127 (119)

Indagación sobre la degradación de plásticos con estudiantes de secundaria

open access: yesEducación Química, 2021
La contaminación por plásticos supone un reto social y educativo con una necesidad urgente de respuesta. La práctica científica de indagación se muestra como un enfoque adecuado para afrontar este problema en la educación secundaria al permitir ...
Mª del Mar López-Fernández   +1 more
doaj   +1 more source

Análisis geológico multidisciplinar de la Unidad Arenas de Trigueros (Formación Arcillas de Gibraleón, S.O. de España)

open access: yesEstudios Geologicos, 2023
Este trabajo define las principales características sedimentológicas, paleontológicas y geoquímicas de la Unidad Arenas de Trigueros, depositada durante el Messiniense en un contexto global de bajada de nivel del mar. Esta unidad se diferencia del resto
Verónica Romero   +12 more
doaj   +1 more source

Evolució de les competències científiques en les carreres de Bioquímica i Biotecnologia de la Universitat Nacional del Litoral, Argentina. Un estudi longitudinal

open access: yesEnseñanza de las Ciencias, 2015
Aquest estudi està fonamentat en el marc de les proves PISA 2006 (OCDE, 2008), sobre competència científica. En la present tesi es va indagar en quina mesurada una mostra d'alumnes de les carreres de Bioquímica i Biotecnologia de la Universitat Nacional ...
Claudia Beatriz Falicoff
doaj   +1 more source

Using a Cooperative Educational Game to Promote Pro-Environmental Engagement in Future Teachers

open access: yesEducation Sciences, 2021
This paper explores the value of cooperative games in enhancing knowledge and generating pro-environmental engagement in students. For this, an educational board game related to global change was developed, validated, and subsequently evaluated using ...
Mercedes Vázquez-Vílchez   +3 more
doaj   +1 more source

Fatty acid determination from microalgal biomass

open access: yesGrasas y Aceites, 1993
Long chain polyunsaturated fatty acids are focusing the interest of researchers as long as analytical techniques are being improved. The Lepage and Roy direct transesterification method is being widely used to measure fatty acid content of microalgae ...
J. L. García Sánchez   +4 more
doaj   +1 more source

Immunomodulation carried out by dietary fatty acids in experimental animals and humans

open access: yesGrasas y Aceites, 2000
Several studies have reported that fatty acids act as modulatory agents of immune response of experimental animals and humans. In this paper, we do and overview of the performed studies by using of unsaturated fatty acids and their influence on several ...
M. A. de Pablo Martínez   +4 more
doaj   +1 more source

Identification and characterization of a new family of long satellite DNA, specific of true toads (Anura, Amphibia, Bufonidae)

open access: yesScientific Reports, 2022
Amphibians have some of the most variable genome sizes among vertebrates. Genome size variation has been attributed to repetitive and noncoding DNA, including satellite repeats, transposable elements, introns, and nuclear insertions of viral and ...
Katerina Guzmán   +5 more
doaj   +1 more source

SUMMARY Macronutrient study for PUFAs production from tiie marine microalga Isochrysis galbana

open access: yesGrasas y Aceites, 1994
Marine microalgae are presented as alternative sources for polyunsaturated fatty acids production. A macronutrient optimization method for culture media commonly used for Isochrysis galbana growth is discussed. This microalga has been reported as a good
J. L. García Sánchez   +4 more
doaj   +1 more source

Antibacterial and antibiofilm effects of essential oil components, EDTA and HLE disinfectant solution on Enterococcus, Pseudomonas and Staphylococcus sp. multiresistant strains isolated along the meat production chain

open access: yesFrontiers in Microbiology, 2022
The spread of multidrug resistant (MDR) bacteria and resistance genes along the food chain and the environment has become a global, but silent pandemic.
Natacha Caballero Gómez   +4 more
doaj   +1 more source

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