Results 71 to 80 of about 39,054 (263)

VISÕES DE CONTEXTUALIZAÇÃO DE PROFESSORES DE QUÍMICA NA ELABORAÇÃO DE SEUS PRÓPRIOS MATERIAIS DIDÁTICOS

Ensaio Pesquisa em Educação em Ciências
Este trabalho procurou investigar, numa ação de formação continuada, os entendimentos a respeito da contextualização no ensino de Química de um grupo de professores antes, durante e após discussões e reflexões de outros enfoques de contextualização, e ...
Erivanildo Lopes da Silva, Maria Eunice Ribeiro Marcondes   +1 more
doaj   +1 more source

Optical Signature of Moiré Superlattices Formed by Twisted SrTiO3 Membranes

Advanced Functional Materials, EarlyView.
We discover optical signatures from bonded interfaces in twisted SrTiO3 moiré superlattices, including low‐frequency Raman vibrational modes and strong second‐harmonic generation, consistent with strong interlayer coupling inferred from cross‐sectional electron microscopy and ab initio calculations. ABSTRACT Moiré superlattices formed at the interfaces
T. A. M. Ragib Shahriar, Fumikazu Murakami, Xing He, Konnor Koons, Xinyan Li, Bumseop Kim, Shihan Qin, Varun Harbola, Jochen Mannhart, Yimo Han, Ruijuan Xu, Shengxi Huang, Andrew M. Rappe, Hanyu Zhu   +13 more
wiley   +1 more source

Life-Cycle Thinking in Inquiry-Based Sustainability Education – Effects on Students’ Attitudes towards Chemistry and Environmental Literacy

Center for Educational Policy Studies Journal, 2013
The aim of the present study is to improve the quality of students’ environmental literacy and sustainability education in chemistry teaching by combining the socio-scientific issue of life-cycle thinking with inquiry-based learning approaches. This case
Marianne Juntunen, Maija Aksela
doaj   +1 more source

Embedded Ferroelectric Nanoclusters Can Drive Polarization Reversal in a Non‐Ferroelectric Polar Film via the Proximity Effect

Advanced Functional Materials, EarlyView.
Ferroelectric nanoclusters create local internal fields in a normally non‐switchable polar film because of polarization mismatch at their interfaces. That field opposes polarization in the regions with larger polarization and reinforces polarization in the regions with smaller polarization.
Anna N. Morozovska, Eugene A. Eliseev, Sergei V. Kalinin, Long‐Qing Chen, Dean R. Evans, Venkatraman Gopalan   +5 more
wiley   +1 more source

Education of organic chemistry at the grammar school - problem parts of subject

SHS Web of Conferences, 2017
In teaching of chemistry, every teacher can enumerate some topics of the chemistry curriculum, which are hard to understand or to memorize for grammar school students. These topics were defined as a problematic parts of subject.
Tvarohová Eliška, Hybelbauerová Simona   +1 more
doaj   +1 more source

An Aspect of Science and Non-science Specialist Teachers’ Perceptions of Chemistry Diagrams

Sakarya University Journal of Education, 2017
In the present study, what attracts the attention of science and non-science specialist teachers think in chemistry diagrams are explored. The data were gathered from 50 (25 female, 25 male) teachers of primary and secondary schools in Turkey.
Ünsal Umdu Topsakal, John Oversby
doaj   +1 more source

Si‐Doped Nanocrystalline Diamond as Highly Sensitive Luminescence Thermometer for the Physiological Temperature Range

Advanced Functional Materials, EarlyView.
In this work, diamonds with negative charged silicon‐vacancy (SiV−) centers have been designed for use as thermometers in biomedical applications. Multiparametric analysis of the emission characteristics of the SiV− centers provides extraordinary sensitivity for temperature detection in the physiological temperature range.
María Gragera, Iván Carrillo‐Berdugo, Josue Millán, Paulius Pobedinskas, Antonio Freire, Ken Haenen, Javier Navas   +6 more
wiley   +1 more source

A Thermodynamic Model of Antiferroelectics and Its Application to Electric Field Induced Antiferroelectric‐Ferroelectric Transition in PbZrO3

Advanced Functional Materials, EarlyView.
A thermodynamic model that incorporates ferroelectric, antiferroelectric, and antiferrodistortive orders of PbZrO3${\rm PbZrO}_3$ is established and parameterized based on experimental measurements and first‐principles calculations. We derive a Clapeyron‐like equation for describing the temperature‐dependence of critical electric fields for the ...
Zhiyang Wang, Guodong Zhao, Aiden Ross, Long‐Qing Chen   +3 more
wiley   +1 more source

Introduction of Formative Assessment Classroom Techniques (FACTs) to School Chemistry Teaching: Teachers' Attitudes, Beliefs, and Experiences. [PDF]

J Chem Educ, 2023
Babinčáková M, Ganajová M, Bernard P.   +2 more
europepmc   +1 more source

Bridging Polymer Brushes and Coatings Through Ultra‐Thick Growth by Surface‐Initiated Photoiniferter Polymerization

Advanced Functional Materials, EarlyView.
Surface‐initiated photoiniferter‐mediated polymerization (SI‐PIMP) enables the controlled growth of UHMW polymer brushes with multi‐micrometer thicknesses, bridging conventional brushes and bulk‐like coatings. UHMW brushes are synthesized through a controlled/living process; they provide low friction and enhanced wear resistance under aqueous ...
Elena Avanzini, Emanuele Grigolon, Lily E. Diodati, Matteo Savio, Megan E. Lott, Kaden C. Stevens, Francesca Lorandi, Brent S. Sumerlin, Edmondo M. Benetti   +8 more
wiley   +1 more source