Results 51 to 60 of about 30,749 (306)

Solvent‐Free Thermal Defect Engineering in Molecular Frameworks With Volatile Linkers

open access: yesAdvanced Materials, EarlyView.
Thermal removal of neutral volatile linkers enables precise and solvent‐free generation of metal vacancies in MOFs. This strategy affords redox‐stable, coordinatively unsaturated FeII sites with tunable spin, ligand coordination, and catalytic behavior. The approach offers a general route to design defect‐functional materials through local coordination
Sonia Martínez‐Giménez   +9 more
wiley   +1 more source

Supervisão pedagógica – um alicerce para a construção do saber

open access: yesGestão e Desenvolvimento, 2013
Para ensinar a ensinar é preciso aprender a ensinar e também ao ensinar aprende-se. Todo este processo terá que ter como suporte a supervisão. A supervisão pedagógica, ao contrário do que se possa pensar, não está somente relacionada com a formação ...
Cheila Sá Pereira, Célia Ribeiro
doaj   +1 more source

High Light Utilization and Color Rendering in Vacuum‐Deposited Semitransparent Perovskite Solar Cells

open access: yesAdvanced Materials, EarlyView.
In this work, low bandgap (≈1.55 eV) semitransparent perovskite solar cells (ST‐PSCs) having thin (thickness < ≈100 nm) perovskite layers and transparent conductive oxide‐based rear electrodes are fabricated using vacuum‐deposition methods. Two different ST‐PSCs demonstrated a high light utilization efficiency value of 4.2 (PCE: 9.26% and AVT: 45.3 ...
Abhyuday Paliwal   +9 more
wiley   +1 more source

O papel do BNB/FNE na economia nordestina pós 1990 [PDF]

open access: yes, 2010
O presente trabalho objetiva analisar o papel do crédito vinculado às tentativas de fomentar a modernização da estrutura econômica nordestina. Tal procedimento se sustenta nos financiamentos do BNB, o qual se configura como instituição financiadora do ...
Araujo, Marcelo Augusto Pontes de
core  

Flexoelectrically Induced Polar Topology in Twisted SrTiO3 Membranes

open access: yesAdvanced Materials, EarlyView.
Twisted SrTiO3 bilayers host polar vortices of flexoelectric origin, revealed through combined experiment and theory. By reconstructing polarization from the toroidal moment of strain gradients, the work establishes a 3D chiral state with broken inversion and mirror symmetries.
Isabel Tenreiro   +13 more
wiley   +1 more source

Desindustrialização regional no Brasil [PDF]

open access: yes, 2015
This work aims at analyzing, for an unprecedented perspective, possible evidences of deindustrialization in the Brazilian economy. For that, it analyzes both regional and state data for the period 1985-2010, using indicators of deindustrialization ...
Lima, João Policarpo Rodrigues   +2 more
core  

Padrão espacial do emprego formal no Paraná

open access: yesEconomia & Região, 2016
Este trabalho analisa o perfil espacial da localização do emprego formal no estado do Paraná, no período de 2002 e 2011. Para a análise utilizou-se as medidas de localização para análise dos setores econômicos entre as mesorregiões, dentre elas elegeu-se
Ariana Cericatto da Silva   +2 more
doaj  

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

Inter-regional redistribution through infrastructure investment : tactical or programmatic? [PDF]

open access: yes, 2009
In this paper we analyze the effects of both tactical and programmatic politics on the inter-regional allocation of infrastructure investment. We use a panel of data for the Spanish electoral districts during the period 1964-2004 to estimate an equation ...
Solé Ollé, Albert   +1 more
core  

Electrolyte–Framework Matching in High‐Voltage TEMPO‐COF Cathodes for Lithium Batteries

open access: yesAdvanced 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

Home - About - Disclaimer - Privacy