Results 41 to 50 of about 298,282 (294)

Spin‐Split Edge States in Metal‐Supported Graphene Nanoislands Obtained by CVD

Advanced Materials, EarlyView.
Combining STM measurements and ab‐initio calculations, we show that zig‐zag edges in graphene nanoislands grown on Ni(111) by CVD retrieve their spin‐polarized edge states after intercalation of a few monolayers of Au. ABSTRACT Spin‐split states localized on zigzag edges have been predicted for different free‐standing graphene nanostructures.
Michele Gastaldo, Masoud Mansouri, Carlos Garcia‐Fernandez, Daniel Sánchez‐Portal, Aran Garcia‐Lekue, Gustavo Ceballos, Aitor Mugarza   +6 more
wiley   +1 more source

Fragmento de armadura romana – lorica squamata – recolhida na baixa de Lisboa: Rua da Vitória / Rua dos Correeiros

Conimbriga
Em 2021, foi recolhida na baixa de Lisboa parte significativa de uma armadura de escamas, romana (lorica squamata), em liga de cobre. Trata-se de uma peça rara, identificada pela primeira vez em Portugal.
Paulo Rebelo, Márcio Beatriz, Guilherme Cardoso   +2 more
doaj   +1 more source

Entity Profiling to Identify Actor Involvement in Topics of Social Media Content

IJCCS (Indonesian Journal of Computing and Cybernetics Systems), 2020
The efficiency of using social media affected modern society's nature and communication; they are more interested in talking through social media than meeting in the real world.
Puji Winar Cahyo, Muhammad Habibi
doaj   +1 more source

DFT screened-exchange approach for investigating electronical properties of graphene-related materials

, 2010
We present ab initio calculations of the bandstructure of graphene and of short zigzag graphene nanoribbons by the screened-exchange-LDA method (sX-LDA) within the framework of density functional theory (DFT). The inclusion of non-local electron-electron
Gillen, Roland, Robertson, John
core   +1 more source

Polyimide‐Linked Hexaazatriphenylene‐Based Porous Organic Polymer with Multiple Redox‐Active Sites as a High‐Capacity Organic Cathode for Lithium‐Ion Batteries

Advanced Materials, EarlyView.
A high‐capacity polyimide‐linked porous organic polymer (HAT‐PTO) incorporating numerous redox‐active centers is synthesized via a hydrothermal reaction, delivering a high theoretical capacity of 484 mAh g−1. In situ hybridization with carboxyl‐functionalized multiwalled carbon nanotubes enhances conductivity and stability, achieving 397 mAh g−1 at C ...
Arindam Mal, Jonathan Caroni, Asia Patriarchi, Olivera Luzanin, Rafael Ramos, Jan Bitenc, Manuel Melle‐Franco, Manuel Souto   +7 more
wiley   +1 more source

Strategies to enhance the competitiveness of semi-intensive aquaculture systems in costal earth ponds: the organic aquaculture approach

Frontiers in Marine Science, 2014
Earthen ponds are the main production system for European seabass (Dicentrarchus labrax) and gilthead seabream (Sparus aurata) in Portugal and in Southern Spain.
Manuel Sardinha, Sofia Engrola, Paulo Gray   +2 more
doaj   +1 more source

Polymorph‐Specific Electronic Transduction in WO3 during Molecular Sensing

Advanced Materials, EarlyView.
Metal‐oxide polymorphs with similar surface chemistry can nevertheless exhibit distinct sensing properties. In γ‐ and ε‐WO3, analyte adsorption appears comparable; yet, only ε‐WO3 induces a pronounced lattice electronic perturbation that accommodates charge in sub‐conduction band minimum states.
Matteo D'Andria, Meng Yin, Stefan Neuhauser, Vlasis G. Mavrantzas, Ying Chen, Ken Suzuki, Andreas T. Güntner   +6 more
wiley   +1 more source

Avaliação do perfil de susceptibilidade aos antimicrobianos de microrganismos isolados em urinas na região do Vale do Sousa e Tâmega.

Acta Médica Portuguesa, 2010
The urinary tract is one of the more common sites of bacterial infections, especially in women. Urinary infection can be defined as an infection of urinary tract structures which occurs, generally, as a consequence of the presence or colonization by ...
Filipe Martins, João Vitorino, Ana Abreu   +2 more
doaj   +1 more source

Implementation of the LDA+U method using the full potential linearized augmented plane wave basis

, 1999
We provide a straightforward and efficient procedure to combine LDA+U total energy functional with the full potential linearized augmented plane wave method. A detailed derivation of the LDA+U Kohn-Sham type equations is presented for the augmented plane
A. B. Shick, A. B. Shick, A. I. Liechtenstein, A. I. Liechtenstein, A. I. Liechtenstein, B. J. Beaudry, B. N. Harmon, D. J. Singh, E. Wimmer, H. J. Monkhorst, H. Sawada, I. V. Solovyev, J. P. Perdew, K. Terakura, M. Heinemann, O. Eriksson, S. L. Dudarev, S. Massida, V. I. Anisimov, W. E. Pickett   +19 more
core   +1 more source

Stable Protein‐Based G‐Quadruplex‐Derived Supramolecular Bioinks as Tunable ECM‐Mimetic Constructs Assembled by Combining Non‐Covalent and Covalent Strategies

Advanced Materials, EarlyView.
Harnessing the synergistic interplay of supramolecular self‐assembly, under macromolecular crowding conditions, and enzymatic‐mediated covalent crosslinking toward a stable protein‐based G‐quadruplex‐derived supramolecular bioink. This bioinspired strategy enables the biofabrication of complex and tunable ECM‐mimetic constructs, providing a platform ...
Vera Sousa, Rita Sobreiro‐Almeida, Bart W. L. van den Bersselaar, E. W. Meijer, Ghislaine Vantomme, João Borges, João F. Mano   +6 more
wiley   +1 more source