Results 51 to 60 of about 41,174 (195)
Angewandte Chemie, EarlyView.Imine‐linked 2D covalent organic frameworks incorporating delocalized trioxotriangulene (TOT) neutral radicals were synthesized through complementary routes. Direct incorporation of an amine‐functionalized TOT radical yields a highly crystalline, porous framework (TOT‐COF‐H) with intrinsic semiconducting behavior (σRT = 1.2 × 10−4 S cm−1) and a narrow ...
Paula Escamilla +8 more
wiley +2 more sources
A agência de Alfred Gell: exúvias e efeitos no mundo das artes
PROA: Revista de Antropologia e Arte, 2019 RESENHA: Gell, Alfred. Arte e agência. São Paulo: Ubu, 2018 A publicação de Arte e agência, de Alfred Gell, 20 anos após o lançamento de sua edição original em inglês, é motivo de celebração.
Mylene Mizrahi
doaj
Advanced Science, EarlyView.This study demonstrates, for the first time, the use of a large‐format high‐pressure press to modify synthesized Li2SrSiO4:Eu2+,Cs+ phosphors after its preparation. The pressure treatment results in the formation of new materials with distinctive optical properties, opening pathways for the development of advanced LED devices and high‐performance ...
Przemysław Woźny +9 more
wiley +1 more source
Iterative Synthesis of Pyrene–Coronene Molecular Graphene Nanoribbons
Angewandte Chemie, EarlyView.An iterative approach delivers a new family of undoped, cove‐edged graphene nanoribbons with lengths up to 9.1 nm that exhibit both molar absorptivity and fluorescence brightness values on the order of 105 M−1 cm−1 and an intrinsic charge‐carrier mobility of 475 ± 32 cm2 V−1 s−1.
Miguel A. Medel +6 more
wiley +2 more sources
Electrolyte–Framework Matching in High‐Voltage TEMPO‐COF Cathodes for Lithium Batteries
Advanced Science, EarlyView.TEMPO‐functionalized covalent organic frameworks are investigated as high‐voltage cathodes for lithium batteries. Screening five electrolyte anions identifies lithium difluoro(oxalato)borate (LiDFOB) as the optimal electrolyte, balancing capacity, rate capability, and cycling stability, while buckypaper electrodes achieve high mass loading (40 mg cm−2)
Marilyn Esclance DMello +5 more
wiley +1 more source
Defect‐Guided Assembly of Aperiodic and Flexible Metal–Organic Frameworks From Pre‐Formed Cages
Angewandte Chemie, EarlyView.A cage‐directed strategy is used to program topologically correlated defects and induce aperiodicity in HKUST‐1‐type MOFs. A missing carboxylate group in the linker drives the formation of Cu‐vacancy domains, while Rh(II) cages spatially confine these defects.
Francisco Sánchez‐Férez +12 more
wiley +2 more sources
Masculinidade hegemônica: repensando o conceito Hegemonic masculinity: rethinking the concept
Revista Estudos Feministas, 2013 O conceito de masculinidade hegemônica tem influenciado os estudos de gênero em vários campos acadêmicos, mas ao mesmo tempo tem atraído um sério criticismo.
Robert W. Connell +1 more
doaj
IntextoA plataformização tem reconfigurado as relações afetivo-sexuais e as subjetividades por meio de aplicativos como o Grindr. Embora o aplicativo facilite conexões entre homens, seu uso frequentemente reflete violências discursivas e a reprodução de ...
Ettore Stefani de Medeiros
doaj +1 more source
Direct Observation of Vortex Liquid Droplets in the Iron Pnictide Superconductor CaKFe4As4 at 0.5Tc
Advanced Science, EarlyView.Vortex matter in the iron‐based superconductor CaKFe4As4${\rm CaKFe}_4{\rm As}_4$ is visualized at the nanoscale, revealing the unexpected emergence of vortex‐liquid droplets far below the critical temperature. These localized fluctuating regions coexist with a vortex solid, demonstrating that dissipation‐related dynamics arise well before macroscopic ...
Óscar Bou Marqués +9 more
wiley +1 more source
Continuous‐Flow Microfluidic Synthesis Enhances C2+ Selectivity for Cu2O Catalysts
Advanced Science, EarlyView.Microfluidic devices are used to prepare Cu2O nanoparticles under laminar flow conditions, which exhibit enhanced selectivity in the CO2‐to‐C2+ reaction due to their nanoporosity and high defect concentration. Cu2O prepared using standard solution methods displays decreased CO2‐to‐C2+ selectivity due to the absence of similar properties. Altogether, we
Carlota Casas +16 more
wiley +1 more source