Results 91 to 100 of about 2,927,072 (293)

As ciências no Brasil

Revista de História, 1956
AS CIÊNCIAS NO BRASIL. Edição Melhoramentos, São Paulo, s-d. 2 vols. 412+400 pp. (Primeiro Parágrafo do Artigo) Este trabalho, organizado e publicado pelo Prof. Fernando de Azevedo, sob auspícios da Instituição Larragoiti e por iniciativa de seu diretor, o Prof.
openaire   +5 more sources

Influence of Layering and Curie Temperature Uncertainty on the Performance of Multilayer Active Magnetic Regenerators

Advanced Functional Materials, EarlyView.
This study examines how manufacturing uncertainties in Curie temperatures (1.5–2°C) affect multilayer active magnetic regenerators (AMR). While increasing the number of magnetocaloric layers boosts cooling power, performance degrades due to temperature variations.
Urban Tomc, Guilherme F. Peixer, Christian R. H. Bahl, Kaspar K. Nielsen, Jaime A. Lozano, Jader R. Barbosa, A. Kitanovski   +6 more
wiley   +1 more source

How much time does a measurement take?

, 2013
We consider the problem of measurement using the Lindblad equation, which allows the introduction of time in the interaction between the measured system and the measurement apparatus.
A. Peres, B.S. Witt de, C. Cohen-Tannoudji, C.A. Brasil, C.A. Brasil, Carlos Alexandre Brasil, D.N. Klyshko, D.T. Pegg, E.J. Squires, G. Lindblad, H. Everett III, H.P. Breuer, I. Percival, J. Combes, J. Neumann von, J.A. Wheeler, L. A. de Castro, M. Bauer, R. Alicki, R. D. J. Napolitano, R. Handel van, R. Zwanzig, S. Nakajima   +22 more
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Ionic Metal Poly(heptazine Imides) and Single‐Atoms Interplay: Engineered Stability and Performance for Photocatalysis, Photoelectrocatalysis and Organic Synthesis

Advanced Functional Materials, EarlyView.
Poly(heptazine) imides (PHIs), a crystalline carbon nitride subclass, intercalate metals to deliver high stability, tunable electronics, and efficient charge separation. These features enable solar‐driven applications such as hydrogen evolution, CO₂ reduction, and organic synthesis.
Gabriel A. A. Diab, Izadora F. Reis, Chong Wang, Diandra Barreto, Oleksandr Savateev, Ivo F. Teixeira, Pablo Jiménez‐Calvo   +6 more
wiley   +1 more source

Copper‐based Materials for Photo and Electrocatalytic Process: Advancing Renewable Energy and Environmental Applications

Advanced Functional Materials, EarlyView.
Cu‐based catalysts as a cornerstone in advancing sustainable energy technologies are fully reviewed in this manuscript, highlighting their potential in photo‐ and electrocatalysis. It includes metallic copper, copper oxides, copper sulfides, copper halide perovskites, copper‐based metal–organic frameworks (MOFs), and covalent organic frameworks (COFs),
Jéssica C. de Almeida, Yanjie Wang, Thais A. Rodrigues, Paulo H. H. Nunes, Vagner R. de Mendonça, Paulo H. E. Falsetti, Leticia V. Savazi, Tao He, Alexandra V. Bardakova, Aida V. Rudakova, Jie Tian, Alexei V. Emeline, Osmando F. Lopes, Antonio Otavio T. Patrocínio, Jia Hong Pan, Caue Ribeiro, Detlef W. Bahnemann   +16 more
wiley   +1 more source

Shakespeare no Brasil

Revista de História, 1964
No dia 23 de abril de 1964 completaram-se quatrocentos anos que William Shakespeare, o maior gênio da Literatura Inglêsa — e um dos maiores de todos os tempos e de tôdas as nações — nasceu.
openaire   +4 more sources

MnI‐Functionalized Covalent Organic Framework as Efficient Electrocatalyst for CO2 Reduction in a Catholyte‐Free Zero‐Gap Electrolyzer

Advanced Functional Materials, EarlyView.
This work demonstrates the successful integration of a phenanthroline‐based 2D COF with MnI catalytic sites into a catholyte‐free membrane‐electrode‐assembly cell for CO2 electroreduction. The crystalline COF actively suppresses Mn⁰–Mn⁰ dimerization, achieving a turnover frequency of 617 h⁻¹ at 2.8 V (full‐cell potential), and enabling stable operation.
Laura Spies, Marcos Eduardo G. Carmo, Gonçalves J. Marrenjo, Stephan Reuther, Patrick Ganswindt, Antonio Otavio T. Patrocinio, Thomas Bein, Osmando F. Lopes, Jenny Schneider   +8 more
wiley   +1 more source

Os novos papéis da biblioteca universitária brasileira

Revista Ibero-Americana de Ciência da Informação, 2016
A pesquisa pretendeu identificar quais são as novas tendências das bibliotecas universitárias brasileiras no século XXI, visando a identificar os novos papéis dessas instituições no cenário das universidades brasileiras nos próximos dez anos.
Fabiene Castelo Branco Diógenes
doaj  

Cinema & History: conflict, interaction and resistance in Recife's (Pernambuco, Brazil) movie theaters in the 1920s

Revista de Estudios Brasileños, 2018
Since the late nineteenth century, new forms of entertainment have become popular in cities. New entertainments (such as cinema), which were conceived for the population of urban centers, assumed a different form of participation, where the spectator's ...
Sylvia COSTA COUCEIRO
doaj   +1 more source

Preconceitos do Brasil (Text) [PDF]

This text in Portuguese and its English translation accompanies the illustrated podcast in Portuguese 'Preconceitos do Brasil' created by James Letts, a student of Spanish and Latin American Studies at the School of Languages and Area Studies ...
Letts, James
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