Results 21 to 30 of about 2,248 (205)
Ruralidade: definições e tipologias
Gestão e Desenvolvimento, 1996 O termo rural tem significados diferentes para diferentes pessoas. Desde uma paisagem bucólica até zonas remotas, atrasadas e com tradições ancestrais, passando por lugares onde se produzem alimentos e matérias-primas para o sector secundário, tudo cabe ...
Francisco José Lopes de Sousa Diniz
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Resolving the Structural Duality of Graphene Grain Boundaries
Advanced Materials, EarlyView.Cantilever ncAFM resolves the atomic structure of grain boundaries in graphene, revealing coexisting stable and metastable types. Both contain pentagon/heptagon defects, but metastable GBs show irregular geometries. Modeling shows metastable GBs form under compression, exhibiting vertical corrugation, while stable GBs are flat.
Haojie Guo +11 more
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Mix Sustentável, 2019 Matérias-primas são fundamentais para fabricação de artefatos diversos. Porém, a crescente demanda por recursos naturais finitos para extrair matérias-primas contribui significativamente para a degradação ambiental. A substituição de materiais sintéticos
Rodrigo Barbosa de Araújo +2 more
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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 +12 more
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Directional Flow of Confined Polaritons in CrSBr
Advanced Materials, EarlyView.CrSBr, a layered magnetic semiconductor, naturally channels self‐hybridized excitonpolaritons into highly directional flow. Its intrinsic optical anisotropy, high refractive index, and strong lightmatter coupling enable long‐range guided modes along the a‐axis, with propagation lengths set by their excitonphoton admixture.
Pratap Chandra Adak +10 more
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COFs on MOFs: Layer‐by‐Layer Synthesis of MOF@COF Nanoparticles with Synergistic Adsorption
Advanced Materials, EarlyView.A layer‐by‐layer strategy enables the growth of crystalline covalent organic framework (COF) shells on metal–organic framework nanoparticles, creating core–shell structures with tunable porosity. Ordered interstitial mesopores are formed during shell growth, which are connected with the COF's intrinsic micropores, thereby enhancing water sorption. This
Ana Guillem‐Navajas +11 more
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Eutectozymes as Soft Hybrid Materials for Advanced Biocatalysis
Advanced 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
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Panorama Económico, 2016 Los Fondos Soberanos de Inversión (FSI) son inversores institucionales en manos de Estados que han experimentado un crecimiento sustancial durante los últimos años.
Juan Manuel Ramírez-Cendrero +1 more
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GeografaresNas interações espaciais, as ferrovias são estratégicas na (re)organização dos fluxos de cargas, que demandam as ligações e interseções da infraestrutura e da prestação de serviços de transporte na movimentação de produtos minerais no território ...
Narciso Ferreira dos Santos Neto +2 more
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Revista del Museo de Antropologia, 2020 En este aporte se presentan resultados de estudios experimentales, petrográficos y de difracción de rayos X (DRX) tendientes a determinar el origen de las materias primas utilizadas por los alfareros de El Sunchal (Anfama, Tucumán) durante el primer ...
Francisco Franco
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