Results 61 to 70 of about 9,183 (118)
Shape‐Changing Multiphase Microparticles from Complex Liquid Crystal Emulsions
Liquid crystalline network (LCN) microparticles are prepared from single, double (Janus), and triple emulsions through a simple and scalable bulk‐emulsification strategy. Under heating, the particles exhibit robust, reversible, large‐amplitude deformations that depend both on the morphology and the liquid crystals director field configuration.
Marco Turriani +3 more
wiley +1 more source
Abstract We present a new empirical vertical E×B $\mathbf{E}\times \mathbf{B}$ drift model developed using ground‐based magnetometer, radar, and satellite data over equatorial latitude regions. We first implement an algorithm relating magnetometer derived equatorial electrojet (EEJ) and vertical ion plasma drift (equivalent to vertical E×B $\mathbf{E ...
John Bosco Habarulema +9 more
wiley +1 more source
O presente artigo é um recorte de uma pesquisa mais ampla, desenvolvida no decorrer do curso de extensão em Astronomia “Diário do Céu – Introdução à Astronomia para Professores da Educação Básica”.
A. Prado, R. Nardi
semanticscholar +1 more source
Abstract The Ediacaran–Cambrian (∼635–539 Ma) geomagnetic field is characterized by unusually high reversal rates and markedly weakened field strength. Estimates of these reversal frequencies can reveal key aspects of deep Earth dynamics and their potential influence on surface environments and early complex life.
J. W. L. Afonso +12 more
wiley +1 more source
In a metaphorical reference to the classical “black-body’s question” in the 19th century Physics, I problematize, in this essay, the reality of black people in the areas of Physics and Astronomy in contemporary Brazil, undertaking a theoretical-critical ...
A. Alves-Brito
semanticscholar +1 more source
PANORAMA DE PESQUISAS EM ENSINO DE ASTRONOMIA NOS ANOS INICIAIS: UM OLHAR PARA TESES E DISSERTAÇÕES
O objetivo deste trabalho foi identificar o que revelam as pesquisas produzidas entre 2008 e 2018 sobre ensino de astronomia nos anos iniciais do Ensino Fundamental a partir de uma revisao bibliografica na Biblioteca Digital Brasileira de Teses e ...
Mayara Hilgert Pacheco +1 more
semanticscholar +1 more source
APRENDIZAGEM SIGNIFICATIVA, OBJETOS DE APRENDIZAGEM E O ENSINO DE ASTRONOMIA
Esse artigo aborda o uso dos objetos de aprendizagem no ensino de Astronomia, em busca de promover uma aprendizagem significativa, dado que na maioria das vezes seu ensino ocorre de forma estanque e sem conexao com a realidade.
M. R. Voelzke, J. Macêdo
semanticscholar +1 more source
[Reviewing Flammarion below the Equator]. [PDF]
Vergara M.
europepmc +1 more source
Perspective: can interfacial defects enhance graphene's reactivity for gas-surface reactions under ultra-high vacuum? [PDF]
Seif A +8 more
europepmc +1 more source
Brazil is already experiencing the brutal impacts of climate change. [PDF]
Lorenz C +6 more
europepmc +1 more source

