Results 71 to 80 of about 898 (301)

Do jornalismo transnacional aos experimentos em blockchain no combate à desinformação

open access: yesEstudos Avançados
RESUMO A desinformação mina valores da cultura democrática, como a livre circulação do diverso e do contraditório, expressas no jornalismo pelo exercício do direito à informação. Este estudo contextualiza e lança perspectivas sobre como sociabilidades de
Magaly Prado, Ben Hur Demeneck
doaj   +1 more source

Editorial: Big Tech, Big Winners, and Big Debt

open access: yesBrock Education Journal, 2021
Editorial: Big Tech, Big Winners, and Big Debt.
openaire   +3 more sources

COVID-19 Meets Big Tech [PDF]

open access: yesComputer, 2020
In summary, there are various effects of COVID-19 on big tech that clearly cannot be lumped together as a single category. The pandemic has led to a heavy cut in discretionary expenditure, which has hit businesses such as Twitter and Facebook severely. Firms with more diversified offerings maintained a stronger cushion against losses.
openaire   +1 more source

Rapid Fabrication of Self‐Propelled and Steerable Magnetic Microcatheters for Precision Medicine

open access: yesAdvanced Materials, EarlyView.
A rapid Joule heating fabrication method for the production of self‐propelling, adaptive microcatheters, with tunable stiffness and integrated microfluidic channels is presented. Demonstrated through three microrobotic designs, including a steerable guiding catheter, an untethered wave‐crawling TubeBot, and a distal‐end propelled microcatheter, it was ...
Zhi Chen   +5 more
wiley   +1 more source

Tensões entre as Big techs e o Estado brasileiro: uma análise sobre o descumprimento de decisões judiciais pelo Telegram e pelo X/Twitter e sobre a interferência no processo legislativo pelo Google [PDF]

open access: yes
Acesso livreThis monograph aims to understand the phenomenon of big tech, that is, big technology companies, in their relationship with the Brazilian state, especially in relation to the constant change in the media and news consumption via the ...
Silva, Lucas Lima
core  

Artificial Intelligence‐Assisted Workflow for Transmission Electron Microscopy: From Data Analysis Automation to Materials Knowledge Unveiling

open access: yesAdvanced Materials, EarlyView.
AI‐Assisted Workflow for (Scanning) Transmission Electron Microscopy: From Data Analysis Automation to Materials Knowledge Unveiling. Abstract (Scanning) transmission electron microscopy ((S)TEM) has significantly advanced materials science but faces challenges in correlating precise atomic structure information with the functional properties of ...
Marc Botifoll   +19 more
wiley   +1 more source

Counterintuitive Fluorescence Blue Shift in Symmetry Breaking Dicationic Bis(indolium) with Two‐Photon Absorption Properties for NIR Living Cell Imaging

open access: yesAdvanced Materials, EarlyView.
Highly water‐soluble dicationic bis(indolium) dyes have been prepared, showing excellent two‐photon absorption and light emission. Their fluorescence behavior discloses an unusual increasing blue shift with increasing solvent polarity, which, in parallel, is beneficial for enhanced detection in biological media.
Carlos Benitez‐Martin   +5 more
wiley   +1 more source

Polymorph‐Specific Electronic Transduction in WO3 during Molecular Sensing

open access: yesAdvanced Materials, EarlyView.
Metal‐oxide polymorphs with similar surface chemistry can nevertheless exhibit distinct sensing properties. In γ‐ and ε‐WO3, analyte adsorption appears comparable; yet, only ε‐WO3 induces a pronounced lattice electronic perturbation that accommodates charge in sub‐conduction band minimum states.
Matteo D'Andria   +6 more
wiley   +1 more source

Desafios das big techs para o estado democrático de direito

open access: yes
Esta pesquisa busca analisar como as Big Techs exercem o poder na esfera econômica, mas também na política. O estudo explora como o exercício reiterado desse poder tem colidido com valores democráticos e os interesses dos estados nacionais na era digital.
Meneghetti, Tarcisio Vilton   +1 more
core   +1 more source

Topology and Material Optimization in Ultra‐Soft Magneto‐Active Structures: Making Advantage of Residual Anisotropies

open access: yesAdvanced Materials, EarlyView.
Residual magnetization induces pronounced mechanical anisotropy in ultra‐soft magnetorheological elastomers, shaping deformation and actuation even without external magnetic fields. This study introduces a computational‐experimental framework integrating magneto‐mechanical coupling into topology optimization for designing soft magnetic actuators with ...
Carlos Perez‐Garcia   +3 more
wiley   +1 more source

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