Results 51 to 60 of about 4,334 (266)

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

High Charge Carrier Mobility in Non‐Conjugated 3D Covalent Organic Frameworks

open access: yesAdvanced Materials, EarlyView.
A non‐conjugated 3D COF constructed via boronate ester linkages from tetraphenylene and pyrene‐based monomers is reported, which exhibits a high charge carrier mobility of 14 ± 1 cm2 V−1 s−1. ABSTRACT π‐Conjugation, π–π stacking, and long‐range order play a central role in determining charge transport efficiency in organic materials.
Joaquín Almarza   +11 more
wiley   +1 more source

Automobile insurance in Brazil: market concentration and demand

open access: yesRevista Contabilidade & Finanças, 2019
This paper studies two aspects of the automobile insurance market in Brazil: first, it determines the degree of competition among insurance companies, and second, it estimates and analyzes the demand for automobile insurance.
Vivileine Maria Peres   +2 more
doaj   +1 more source

Gapless Superconductivity From Extremely Dilute Magnetic Disorder in 2H‐NbSe2‐xSx

open access: yesAdvanced Materials, EarlyView.
We demonstrate that 2H‐NbSe2‐xSx hosts gapless superconductivity at unexpectedly low magnetic impurity concentrations. Combining STM, Bogoliubovde Gennes simulations, DFT, and quasiparticle interference, we comprehensively study the development of gapless behavior and show that SeS substitution reshapes the band structure, enhances nesting, and drives ...
Jose Antonio Moreno   +16 more
wiley   +1 more source

Nanographene‐Based van der Waals Organic Framework With Permanent Porosity

open access: yesAngewandte Chemie, EarlyView.
Unlocking record‐breaking porosity in a supramolecular organic framework (SOF). Through the strategic design of a C3‐symmetric nanographene, a robust supramolecular framework is achieved via exclusively weak van der Waals forces. This metal‐free scaffold reaches a benchmark BET surface area of 1108 m2 g−1 –the highest to date for this class–combining ...
Arturo Oró   +5 more
wiley   +2 more sources

Cadeia produtiva avícola de corte de Moçambique: caracterização e competitividade Cutting poultry production chain from Mozambique: characterization and competitiveness

open access: yesRevista de Ciências Agrárias, 2011
O trabalho caracteriza a competitividade da cadeia produtiva avícola de corte de Moçambique, a partir das estratégias empresariais e do desempenho econômico das empresas. A atividade avícola desempenha importante papel na segurança alimentar e na geração
Quintília da Conceição Nicolau   +2 more
doaj  

A perceção dos stakeholders sobre o desenvolvimento turístico: o caso da ilha de São Miguel, Açores

open access: yesPASOS Revista de Turismo y Patrimonio Cultural, 2019
O turismo na Região Autónoma dos Açores, e em especial na Ilha de São Miguel, tem sofrido nos últimos anos um aumento significativo que se repercute inevitavelmente em impactos económicos, socioculturais e ambientais.
Fabiana Moniz, João Simão
doaj   +1 more source

Signatures of Edge States in Antiferromagnetic Van der Waals Josephson Junctions

open access: yesAdvanced Materials, EarlyView.
ABSTRACT The combination of superconductivity and magnetic textures leads to unconventional superconducting phenomena, including new correlated and topological phases. Van der Waals (vdW) materials emerge as a versatile platform for exploring the interplay between these two competing orders.
Celia González‐Sánchez   +10 more
wiley   +1 more source

Origens, evolução e tendências da indústria de máquinas agrícolas

open access: yesRevista de Economia e Sociologia Rural, 2013
O presente trabalho contribui com o estudo da gênese e da evolução histórica da indústria de máquinas e implementos agrícolas, destacando o papel de algumas empresas e como suas estratégias moldaram a estrutura produtiva e de mercado atuais, um ...
Carlos Eduardo de Freitas Vian   +3 more
doaj   +1 more source

A Soft, Flexible Implant for Wireless Photothermal–Pyroelectric Neurostimulation

open access: yesAdvanced Science, EarlyView.
A replication strategy is used to enlarge the exposed surface area of barium titanate within flexible films with embedded carbon nanotubes, enabling efficient photothermal‐pyroelectric stimulation. Polar crystalline nanosheets show superior performance in guiding neural progenitor cells toward neuronal differentiation.
Jiang Wu   +7 more
wiley   +1 more source

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