Results 71 to 80 of about 572,074 (234)

Resonant Domain Wall Dynamics in a Three‐Dimensional Magnetic Nano Double Helix

Advanced Materials, EarlyView.
3D magnetic nanostructures promise exciting possibilities for magnetization dynamics. However, experimental realizations remain scarce. In nanoprinted cobalt double helices, time‐resolved X‐ray microscopy reveals harmonic domain wall dynamics. Simulations identify the mode and additional higher‐frequency resonances, revealing a rich dynamic landscape ...
Pamela Morales‐Fernández, Iason Konstantinos‐Douveas, Claas Abert, Elina Zhakina, Sandra Ruiz‐Gómez, Claudia Fernández‐González, Luke Alexander Turnbull, Sebastian Wintz, Markus König, Simone Finizio, Markus Weigand, Naëmi Leo, Dieter Suess, Aurelio Hierro‐Rodríguez, Amalio Fernández‐Pacheco, Claire Donnelly   +15 more
wiley   +1 more source

Explorando la magnetización de fluidos: un enfoque interactivo con electromagnetismo y simuladores virtuales

Educación Superior
Este estudio presenta un Trabajo Práctico experimental para el aprendizaje del electromagnetismo a través de la magnetización de un fluido, utilizando un electroimán y simuladores virtuales con estudiantes de undécimo grado. La población utilizada fue de
Deyanira Francisca Báez-Obando, Deyvid Francisco Rivera-Rivera, Francis Judith Centeno-Centeno, Cliffor Jerry Herrera-Castrillo   +3 more
doaj   +1 more source

The search for similarities and differences as a teaching strategy remote interactions and the concept of field in Physics

Enseñanza de las Ciencias, 2013
This thesis, developed in the framework of the teaching of Physics, the main objective was to determine to what extent the implementation of a teaching strategy based on the use of analogies, facilitates learning remote interactions and electric field ...
Anahí Catalina Fracaro
doaj   +1 more source

E. coli Extracellular Matrix: A Tunable Composite With Hierarchical Structure

Advanced Materials, EarlyView.
The complex composite‐like mechanical behavior of E. coli biofilm matrix is the result of a synergic contribution of the rigid curli and swelling pEtN‐cellulose, and emerges from specific ratio and assembly conditions. The interactions between the two fibers govern biofilm hydration and characteristic wrinkling patterns, providing crucial insights for ...
Macarena Siri, Agustín Mangiarotti, Anne Seewald, Nikolai Rosenthal, Shahrouz Amini, Emeline Raguin, Peter Fratzl, Cécile M. Bidan   +7 more
wiley   +1 more source

Exciton Radiative Lifetimes in Hexagonal Diamond Ge and SixGe1–x Alloys

Advanced Optical Materials, EarlyView.
Strong room‐temperature photoluminescence reported in hexagonal Ge conflicts with theory predicting a nearly dark band edge. First‐principles calculations of excitonic radiative lifetimes fill a key gap in this debate, showing that pristine hexagonal Ge remains intrinsically weakly emissive, while Si alloying only modestly shortens the lifetime and ...
Michele Re Fiorentin, Michele Amato, Maurizia Palummo   +2 more
wiley   +1 more source

Definición de la flexibilidad del pensamiento desde la enseñanza

Revista Iberoamericana de Educación, 2006
Se analizan y critican definiciones de flexibilidad del pensamiento encontradas en la literatura pedagógica y psicológica. Sobre la base de las críticas realizadas se propone una definición que permite su operacionalización desde las características del ...
Miguel E. Zaldívar Carrillo, Yamilka Sosa Oliva, José López Tuero   +2 more
doaj  

Revealing the Transmission Hologram's Refractive Index Profile Stored in a Photohydrogel: A Structural Characterization

Advanced Optical Materials, EarlyView.
A theoretical model is developed to visualize three‐dimensional refractive index profiles in transmission holographic gratings. In this work, it is applied to photopolymerizable hydrogels, enabling detailed analysis of the internal structure of recorded holograms and their evolution under different degradation conditions.
Belén Nieto‐Rodríguez, Manuel G. Ramírez, José Carlos García‐Vázquez, Tomás Lloret, Inmaculada Pascual   +4 more
wiley   +1 more source

Departamento de Física, Universidad Nacional de Colombia Santafé de Bogotá

, 1997
1. Magister Scientiae Física Caracterización Óptica de Películas Delgadas Semiconductoras midiendo el espectro de Transmitancia; Puntos Cuánticos: Una aproximación por el método l/N; Dosimetría termoluminiscente con LiF en el estudio de las ...
Momento Revista de Física, Revista de Física, Momento   +1 more
core  

A infância na formação universitária do professor de educação física [PDF]

, 2012
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências da Educação, Programa de Pós-Graduação em Educação, Florianópolis, 2009.Esta pesquisa busca analisar o lugar que ocupa a infância, entendida como condição social de Ser ...
Silva, Cecília da
core  

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