Results 11 to 20 of about 1,087,326 (199)

A protocol to study bacteriophage adaptation to new hosts

open access: yesSTAR Protocols, 2021
Summary: A general protocol for the experimental assessment of bacteriophage adaptation to new hosts is described. We use as a model system the lytic phage T7 and an engineered E. coli strain modified to hamper the recruitment of a known proviral factor.
Raquel Luzon-Hidalgo   +4 more
doaj   +1 more source

Time crystal dynamics in a weakly modulated stochastic time delayed system

open access: yesScientific Reports, 2022
Time crystal oscillations in interacting, periodically driven many-particle systems are highly regular oscillations that persist for long periods of time, are robust to perturbations, and whose frequency differs from the frequency of the driving signal ...
Jordi Tiana-Alsina, Cristina Masoller
doaj   +1 more source

Artificial Intelligence-Driven Inverse Design of Singlet Fission Candidates in the Acene family. [PDF]

open access: yesAdv Sci (Weinh)
In this work, we describe an AI‐driven inverse design platform predicting S1 and T1 energies across acenes with high accuracy. Using Hammett σ constants as descriptors and RNN models coupled with optimization algorithms, it efficiently explores ≈1014 structures, uncovering novel SF candidates from benzene to pentacene. Freely accessible at https://alba.
Uceda RG   +9 more
europepmc   +2 more sources

Evidence for a role of phenotypic mutations in virus adaptation

open access: yesiScience, 2021
Summary: Viruses interact extensively with the host molecular machinery, but the underlying mechanisms are poorly understood. Bacteriophage T7 recruits the small protein thioredoxin of the Escherichia coli host as an essential processivity factor for the
Raquel Luzon-Hidalgo   +5 more
doaj   +1 more source

Propagação de ondas aplicadas ao mapeamento geológico: formulação acústica

open access: yesRevista Brasileira de Ensino de Física, 2021
O conceito de onda é recorrente nas ciências pura e aplicada, servindo de base para compreender desde terremotos, passando pelas telecomunicações e eletromagnetismo, até a difração de nêutrons, e.g., para citar um caso quântico.
Leandro Di Bartolo
doaj   +1 more source

Alfabetização Científica e a Contextualização do conhecimento: um estudo da Física aplicada ao trânsito

open access: yes, 2020
Apresentamos os resultados de um estudo com egressos do Ensino Médio que buscou investigar o nível de alfabetização científica e a capacidade de interpretar situações do trânsito à luz da Física.
P. Vizzotto, Luiz Fernando Mackedanz
semanticscholar   +1 more source

Experimental and Numerical Study of Locking of Low-Frequency Fluctuations of a Semiconductor Laser with Optical Feedback

open access: yesPhotonics, 2022
We study the output of a semiconductor laser with optical feedback operated in the low-frequency fluctuations (LFFs) regime and subject to weak sinusoidal current modulation.
Jordi Tiana-Alsina, Cristina Masoller
doaj   +1 more source

Educação física especial aplicada ao autismo no Brasil: avanços recentes e perspectivas de atuação

open access: yesBrazilian Journal of Health Review, 2020
The objective is to contextualize the care in physical education (PE) for people with autism and then describe a type of specialized service that has been performed.
Paulo Augusto Costa Chereguini   +2 more
semanticscholar   +1 more source

Current-driven skyrmion motion along disordered magnetic tracks

open access: yesAIP Advances, 2017
The motion of skyrmions along ferromagnetic strips driven by current pulses is theoretically analyzed by means of micromagnetic simulations. Analytical expressions describing the skyrmion dynamics during and after the current pulse are obtained from an ...
Victor Raposo   +2 more
doaj   +1 more source

A GAMIFICAÇÃO APLICADA À FORMAÇÃO INICIAL DE PROFESSORES DE FÍSICA EM TRÊS OPÇÕES METODOLÓGICAS

open access: yes, 2020
Este artigo trata do conceito e da pratica da gamificacao na formacao inicial docente, particularmente aplicada no curso de Licenciatura em Fisica.
André Coelho da Silva, Ivan Fortunato
semanticscholar   +1 more source

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