Results 61 to 70 of about 9,183 (118)

Shape‐Changing Multiphase Microparticles from Complex Liquid Crystal Emulsions

open access: yesAdvanced Functional Materials, Volume 36, Issue 35, 30 April 2026.
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

A New Global Climatological Model of the Equatorial Ionospheric Vertical E × B Drift: Integrating Ground‐Based Magnetometer, Radar, and Satellite Data Sets

open access: yesEarth and Space Science, Volume 13, Issue 4, April 2026.
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

Formação de professores dos anos iniciais e saberes docentes mobilizados durante um curso de formação em Astronomia

open access: yesRevista Latino-Americana de Educação em Astronomia, 2020
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

High Geomagnetic Reversal Frequency During the Middle to Late Ediacaran (∼570 Ma) Constrained by Integrated Magneto‐ and Cyclostratigraphy

open access: yesJournal of Geophysical Research: Solid Earth, Volume 131, Issue 4, April 2026.
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

OS CORPOS NEGROS: QUESTÕES ÉTNICO-RACIAIS, DE GÊNERO E SUAS INTERSECÇÕES NA FÍSICA E NA ASTRONOMIA BRASILEIRA

open access: yes, 2020
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

open access: yes, 2020
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

open access: yes, 2020
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]

open access: yesHist Cienc Saude Manguinhos, 2023
Vergara M.
europepmc   +1 more source

Perspective: can interfacial defects enhance graphene's reactivity for gas-surface reactions under ultra-high vacuum? [PDF]

open access: yesFront Chem
Seif A   +8 more
europepmc   +1 more source

Brazil is already experiencing the brutal impacts of climate change. [PDF]

open access: yesRev Saude Publica
Lorenz C   +6 more
europepmc   +1 more source

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