Results 71 to 80 of about 2,564,184 (334)

Perturbative dynamics of thin-shell wormholes beyond general relativity: An alternative approach [PDF]

, 2017
Recent studies relating the approximations for the equations-of-state for thin shells and their consequent perturbative evolution are extended to thin-shell wormholes in theories beyond general relativity and more than four spacetime dimensions.
Rubín de Celis, Emilio, Simeone, Claudio Mauricio, Tomasini, Cecilia   +2 more
core   +2 more sources

Self‐Cooling Molecular Spin Qudits

Advanced Materials, EarlyView.
A material made of [GdEr] molecular dimers can encode a qudit and perform as a magnetic refrigerant. Microwave resonant pulses coherently manipulate its 16 spin states, while direct demagnetization measurements cool the material and a device down to temperatures below 1 K.
Elías Palacios, David Aguilà, David Gracia, Diamatoula Maniaki, Leoní A. Barrios, Alessandro Chiesa, Jesús I. Martínez, Valentin Novikov, Olivier Roubeau, Stefano Carretta, Marco Evangelisti, Guillem Aromí, Fernando Luis   +12 more
wiley   +1 more source

Hierarchical bioglass scaffolds: Introducing the "milky way" for templated bioceramics [PDF]

, 2015
Free standing hierarchical bioglass scaffolds were prepared by the ISISA (ice-segregation-induced self-assembly) method. Commercial low-cost precursors such as Ludox® HS-40 and cow milk were employed as the source of SiO2 and biominerals (Ca(ii), P(v ...
Jobbagy, Matias, Minaberry, Yanina Susana, Onna, Diego Ariel   +2 more
core   +1 more source

A Functional 2D Carbon Allotrope Combining Nanoporous Graphene and Biphenylene Segments

Advanced Materials, EarlyView.
The synthesis of a novel nanoporous graphene (NPG) is reported with biphenylene segments via thermal fusion of 12‐armchair porous graphene nanoribbons grown on gold surfaces. Characterization using STM, AFM, and DFT reveals low‐defect semiconducting behaviour and tunable band gaps.
Paula Angulo‐Portugal, Martin Irizar, Longfeng Huang, Mamun Sarker, Mustafa A. Ashoush, Zakaria M. Abd El‐Fattah, Johannes Barth, Frederik Schiller, Afaf El‐Sayed, Fei Gao, Dimas G. de Oteyza, Alexander Sinitskii, Aran Garcia‐Lekue, Martina Corso, Ignacio Piquero‐Zulaica   +14 more
wiley   +1 more source

Pseudo Justino y la recepción de la Física aristotélica en la antigüedad tardía

Tópicos, 2013
This paper is focused on the critical discussion that Ps. Justinus (an Aristotelian author of the fifth century AD) addresses to some basic principles of Aristotle's philosophy of nature. Ps.
Marcelo D. Boeri
doaj   +1 more source

The Thermal Statistics of Quasi-Probabilities' Analogs in Phase Space [PDF]

, 2015
We focus attention upon the thermal statistics of the classical analogs of quasi-probabilities (QP) in phase space for the important case of quadratic Hamiltonians. We consider the three more important OPs: Wigner's, P -, and Husimi's.
Pennini, Flavia Catalina, Plastino, Ángel Luis, Rocca, Mario Carlos   +2 more
core   +2 more sources

Transporte mucociliar e sua relação com o nível de atividade física na vida diária em fumadores saudáveis e não fumadores

Revista Portuguesa de Pneumologia, 2012
ResumoObjetivosInvestigar a relação entre o transporte mucociliar e a atividade física na vida diária (AFVD) em fumadores e não fumadores.MétodosCinquenta e dois fumadores foram submetidos à avaliação do transporte mucociliar (Tempo de Trânsito de Sacarina, TTS), dos níveis de monóxido de carbono no ar expirado, da função pulmonar e do histórico ...
M. Proença, F. Pitta, D. Kovelis, L.C. Mantoani, K.C. Furlanetto, J. Zabatiero, D. Ramos, E.M.C. Ramos   +7 more
openaire   +2 more sources

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

Advanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades, Pedro Hidalgo, David Maestre, Ruth Martínez‐Casado, Emilio Nogales, Beatriz Rodríguez, G. Cristian Vásquez, Bianchi Méndez   +7 more
wiley   +1 more source

Practice of physical activity, prosocial behavior and self-concept in adolescents: connections in school contexts [PDF]

, 2018
Introducción. La investigación tiene dos objetivos: (1) establecer diferencias entre variables internas (autoconcepto y prosocialidad) y externas (frecuencia de actividad física) que rodean al adolescente en el contexto escolar, según condiciones ...
GonzálezHernández, Juan, Martínez-Martínez, Francisco D.   +1 more
core   +2 more sources

Caracterização física e química de frutos de cultivares de amoreira do gênero Morus

Boletim de Indústria Animal, 2012
O trabalho teve como objetivo a avaliação das características físicas e químicas de frutos de cultivares de amoreira (Morus spp.). O experimento foi conduzido em Marília, São Paulo, onde foram avaliados frutos de dez cultivares de amoreira, sendo elas IZ 1/1, IZ 1/2, IZ 1/3, IZ 1/12, IZ 2/1, IZ 3/1, IZ 4/1 e IZ 15/1, além de Korin e Miura.
Fumiko Okamoto, Maria Cecília de Arruda Palharini, Anelisa de Aquino Vidal, Claudio Hagime Funai, Fernanda de Paiva Badiz Furlaneto, Adriana Novais Martins, Elisangela Marques Jerônimo   +6 more
openaire   +3 more sources