Results 81 to 90 of about 2,588,475 (274)

Análisis del aprendizaje, emociones y percepciones de maestros en formación inicial al jugar con Conoce a tus polinizadores

Revista Eureka sobre Enseñanza y Divulgación de las Ciencias
La biodiversidad y, en particular, los polinizadores se encuentran gravemente amenazados debido al cambio climático. Los estudiantes, como agentes activos de nuestra sociedad, deben ser conocedores de dichos problemas socio-científicos logrando así un ...
María del Mar López-Fernández, Verónica Torres-Blanco   +1 more
doaj   +1 more source

Chitin‐Chitosan Cryogels for the Reversible Sequestration and Recovery of Heavy Metals From Wastewater

Advanced Materials Technologies, EarlyView.
Chitin‐chitosan cryogels with degrees of N‐acetylation from 12.2% to 71.4% are fabricated by dissolution, coagulation and lyophilization for the sequestration of heavy metals from water. Colorimetry and differential pulse voltammetry showed controlled adsorption and desorption capacities for As5+, Co2+ and Cu2+, making this material attractive for ...
Marta García‐Castrillo, Maialen Uribarrena, Jorge Sáiz, Guillermo Copello, Erlantz Lizundia   +4 more
wiley   +1 more source

Didáctica de las ciencias experimentales I

, 2005
ESP
Sánchez Blanco, Gaspar, Bernal Martínez, José Mariano, García-Estañ Candela, Remedios, Guzmán Martínez-Valls, Diego, Valcárcel Pérez, María Victoria   +4 more
openaire   +1 more source

Algunas contribuciones de la mujer a las ciencias experimentales

Enseñanza de las Ciencias. Revista de investigación y experiencias didácticas, 1996
Contributions of women to Science in the past have been scarce, but relevant in several cultures. Nevertheless, these contributions have been further obscured by subsequent male writers. Even in recent publications there is a strong tendency to neglect the role of women in Science.
openaire   +5 more sources

Hybridization of Gap Plasmons and Grating‐Coupled Surface Plasmon Polaritons in Metal Nanoparticle Cluster Arrays on a Mirror

Advanced Optical Materials, EarlyView.
Here we use a template‐assisted self‐assembly approach of metal colloids onto metal films to produce hybrid plasmonic metasurfaces that integrate nanoparticle‐on‐mirror cavities with periodic metal colloid arrays. The resulting coupling between gap plasmons and grating‐coupled surface plasmon polaritons enables programmable hybrid modes with tailored ...
Afroditi Koutsogianni, Xiaoyu Qi, Jose Mendoza‐Carreño, Pedro Moronta, Maria Isabel Alonso, David B. Amabilino, Agustín Mihi   +6 more
wiley   +1 more source

Aberrations‐Corrected Ratiometric Parameters and PLQYs for Upconversion Thermometry in Hexagonal NaYF4:Yb3+,Er3+ and NaYF4:Yb3+,Tm3+ in Micro and Nanoscale Phosphors Using Novel Integrating Sphere Setup

Advanced Optical Materials, EarlyView.
Each optical system introduces aberrations in the reading of photoluminescence, which makes the signal dependant on the lab equipment. Here, a calibrated system is used to obtain the PLQYs and ratiometric parameters of popular upconverters to be used in thermometry.
Adilet Zhakeyev, Feng Li, Daniel Biner, Karl W. Krämer, Guanying Chen, Jose Marques‐Hueso   +5 more
wiley   +1 more source

Didáctica de las ciencias experimentales II

, 2005
ESP
Banet Hernández, Enrique, Jaén García, Mercedes, Pro Bueno, Antonio José de   +2 more
openaire   +1 more source

Crossover From Excitonic to Bulk Emission in Metal Halide Perovskite Nanocomposites

Advanced Optical Materials, EarlyView.
A transition from excitonic to free‐charge recombination is uncovered in perovskite nanocomposites as a function of nanostructure size using PLQY(R, F) mapping as a function of excitation fluence (F) and repetition rate (R). These findings demonstrate that PLQY(R, F) mapping serves as a powerful and non‐invasive tool to extract quantitative information
Miriam Minguez‐Avellan, Alexandr Marunchenko, Víctor Sagra‐Rodríguez, Rafael Abargues, Pablo P. Boix, Ivan G. Scheblykin   +5 more
wiley   +1 more source

Cyclodextrin‐Functionalized Light‐Driven Cu2O Micromotors for Simultaneous Capture and Degradation of Bisphenol A

Advanced Robotics Research, EarlyView.
Fuel‐free Cu2O‐based micromotors functionalized with β‐cyclodextrin actively remove bisphenol A from water under visible light. The cyclodextrin shell captures BPA and enhances micromotor motility, leading to faster degradation and higher overall removal than nonfunctionalized Cu2O and Cu2O@Au.
Luisa Natalia Cordoba Urresti, Rebeca Ferrer Campos, Yufen Chen, Katherine Villa   +3 more
wiley   +1 more source

Dog invasions in protected areas: A case study using camera trapping, citizen science and artificial intelligence

Global Ecology and Conservation
Domestic dogs, Canis familiaris, wandering into natural habitats poses a grave threat to wildlife, increasing predation pressure and disease risk and disrupting the ecological balance within ecosystems.
Santiago Gutiérrez-Zapata, Simone Santoro, Manuel Emilio Gegundez-Arias, Nuria Selva, Javier Calzada   +4 more
doaj   +1 more source