Results 51 to 60 of about 2,349,990 (309)

Hashish in Brazil [PDF]

open access: yesThe Journal of Nervous and Mental Disease, 1920
n ...
openaire   +1 more source

New challenges for women workers in Brazil facing the wave of Industry 4.0 technologies

open access: yes, 2022
This paper aims to understand how women’s work tends to be particularly affected by the new wave of Industry 4.0 technologies in Brazil and how public policies could actuate to reduce work gender inequalities throughout this process.
Garcia, Mariana Hansen   +1 more
core   +1 more source

An Experimental High‐Throughput Approach for the Screening of Hard Magnet Materials

open access: yesAdvanced Engineering Materials, EarlyView.
An entire workflow for the high‐throughput characterization and analysis of compositionally graded magnetic films is presented. Characterization protocols, data management tools and data analysis approaches are illustrated with test case Sm(Fe, V)12 based films.
William Rigaut   +16 more
wiley   +1 more source

Ridehailing and alcohol-involved traffic fatalities in the United States: The average and heterogeneous association of uber.

open access: yesPLoS ONE, 2020
Ridehailing services such as Uber have been promoted as viable interventions for curbing alcohol-involved driving fatalities. However, evidence of ridehailing's impact has been mixed, with some studies finding no association but others finding either an ...
Noli Brazil, David Kirk
doaj   +1 more source

Crisis in Brazil [PDF]

open access: yesScience, 2018
Earlier this month, Brazil's National Museum—the oldest, largest, and arguably the most important historical and scientific museum in Latin America—was consumed by fire, stoked by a neglected and degraded infrastructure. It has been a tragic reminder to Brazil and to the rest of the world of how important it is for societies to support the institutions
openaire   +2 more sources

Grain Refinement During Severe Plastic Deformation and Similitude of Subgrain Formation: A Molecular Dynamics Study

open access: yesAdvanced Engineering Materials, EarlyView.
Molecular dynamics is used to investigate structure refinement during severe plastic deformation. The results show similitude with experimental data. Molecular dynamics simulations of severe plastic deformation of monocrystalline and polycrystalline samples by multiaxial compression of aluminum are carried out.
Roberto B. Figueiredo
wiley   +1 more source

Ultrasensitive Anti‐Stokes Luminescence Thermometry in Transition Metal Dichalcogenide Monolayers

open access: yesAdvanced Functional Materials, EarlyView.
We demonstrate a highly sensitive nanothermometer using anti‐Stokes photoluminescence, also known as photoluminescence upconversion (UPL), in monolayer tungsten disulfide. A strong resonantly enhanced UPL is observed, confirming the central role of optical phonons in the PL upconversion mechanism.
Sharada Nagarkar   +6 more
wiley   +1 more source

Terra e trabalho no sul de Mato Grosso – considerações sobre superação do escravismo, luta pela terra, economia pastoril e advento do trabalho livre - séculos 19 e 20

open access: yesHistória: Debates e Tendências, 2007
Leis foram formuladas para redefinir políticas de terras e de mão-de-obra, abrangentes para todas as províncias do Império brasileiro a partir de 1850.
Maria do Carmo Brazil
doaj   +1 more source

Eutectozymes as Soft Hybrid Materials for Advanced Biocatalysis

open access: yesAdvanced Materials, EarlyView.
Eutectozymes are sustainable hybrid materials that embed a GOx–HRP cascade within hydrophobic eutectogels featuring a dual supramolecular–covalent network. This architecture preserves native enzyme structure and stability, enables efficient heterogeneous biocatalysis in aqueous media, and positions eutectogels as robust platforms for next‐generation ...
Manuel Eduardo Martinez Cartagena   +10 more
wiley   +1 more source

Os caminhos cruzados entre ética e metafísica no conceito de responsabilidade

open access: yesCadernos Cajuína
RESUMO: O presente artigo, em verdade um pré-projeto de doutorado, procura entender o status da Responsabilidade no âmbito ético metafísico da obra de Hans Jonas, em específico O Princípio Responsabilidade.
Luciano Gomes Brazil
doaj   +3 more sources

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