Results 101 to 110 of about 495,534 (295)

Predicting Atomic Charges in MOFs by Topological Charge Equilibration

open access: yesAdvanced Functional Materials, EarlyView.
An atomic charge prediction method is presented that is able to accurately reproduce ab‐initio‐derived reference charges for a large number of metal–organic frameworks. Based on a topological charge equilibration scheme, static charges that fulfill overall neutrality are quickly generated.
Babak Farhadi Jahromi   +2 more
wiley   +1 more source

Infrared Nanocrystals for Space Application: Hardness to Irradiations

open access: yesAdvanced Functional Materials, EarlyView.
This article investigates infrared HgTe nanocrystals under X‐ray and ion irradiation, revealing remarkable radiation hardness. It uncovers distinct degradation mechanisms and shows that the nanomaterial outperforms integrated electronics. The results position colloidal nanocrystals as promising candidates for resilient space and harsh‐environment ...
Alexandre Neyret   +22 more
wiley   +1 more source

Capítulos da agroecologia postos em prática

open access: yesSustentabilidade em Debate, 2014
O livro nos faz refletir sobre dinâmicas relacionadas a mercados e políticas públicas para a agroecologia, indo muito além dos discursos que geralmente marcam o debate no campo agroecológico. É acima de tudo uma excelente síntese sobre a Rede Ecovida de
Cláudia de Souza
doaj  

Ferroelectricity in Antiferromagnetic Wurtzite Nitrides

open access: yesAdvanced Functional Materials, EarlyView.
We establish MnSiN2${\rm MnSiN}_2$ and MnGeN2${\rm MnGeN}_2$ as aristotypes of a new multiferroic wurtzite family that simultaneously exhibits ferroelectricity and antiferromagnetism with altermagnetic spin splitting. By strategically substituting alkaline‐earth metals, we predict new materials with coexisting switchable polarization, spin texture, and
Steven M. Baksa   +3 more
wiley   +1 more source

A value at risk analysis of cedit default swaps [PDF]

open access: yes
We investigate the risk of holding credit default swaps(CDS) in the trading book and compare the Value at Risk (VaR) of a CDS position to the VaR for investing in the respective firm’s equity using a sample of CDS – stock price pairs for 86 actively ...
Raunig, Burkhard, Scheicher, Martin
core  

Investigation of thin film solar cells on CdS/CdTe base with different back contacts [PDF]

open access: yes, 2010
The peculiarities of photo-electric processes in thin film CdS/CdTe solar cells (SC) with different back electrodes (Cu/Au, ITO, Cu/ITO) havebeen studied. As it was established by capacitance – voltage (C-V) characteristics, the potential barrier heights
Khrypunov, G.   +4 more
core  

Magnetic Force Microscopy Signatures of Higher‐Order Skyrmions and Antiskyrmions

open access: yesAdvanced Functional Materials, EarlyView.
Magnetic force microscopy operated under vacuum conditions enables the qualitative identification of higher‐order skyrmions and antiskyrmions in Co/Ni multilayers at room temperature. Distinct stray‐field contrast signatures arise from vertical Bloch lines and complex domain‐wall configurations.
Sabri Koraltan   +8 more
wiley   +1 more source

Ilhas:

open access: yesSustentabilidade em Debate, 2015
Steven Roger Fischer. Ilhas: de Atlântida a Zanzibar. São Paulo: Editora Unesp, 2014. 432p. [Tradução de Claudia Freire]. ISBN 978-85-393-0550-6. Preço: R$ 65,00. Inclui bibliografia, imagens e índice remissivo.
Marilia Teresinha de Sousa Machado
doaj  

Covalent Organic Frameworks for Photocatalytic CO2 Reduction: Metal Integration Principles, Strategies and Functions

open access: yesAdvanced Functional Materials, EarlyView.
Covalent organic frameworks (COFs) with metals have been recognized as versatile platforms for photocatalytic CO2 reduction (CO2PRR). Herein, an overview of metal integration strategies for COFs is systematically summarized. Regulatory mechanisms and structure–activity relationships between metal integration and COF‐based CO2PRR are emphasized.
Jie He   +5 more
wiley   +1 more source

Sociedade cabocla:

open access: yesSustentabilidade em Debate, 2011
ADAMS, Cristina; MURRIETA, Rui; NEVES, Walter (Eds.). Sociedades caboclas amazônicas: modernidade e invisibilidade. São Paulo: Annablume, 2006. 364 p.; 16 X 23 cm. ISBN 85-7419-644-4.
Raquel Caribé Grando
doaj  

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