Results 41 to 50 of about 232,732 (288)

Resolving the Structural Duality of Graphene Grain Boundaries

open access: yesAdvanced 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
wiley   +1 more source

Review of The Morphosyntax of Portuguese and Spanish in Latin America, by Mary A. Kato and Francisco Ordóñez (Eds.). New York: Oxford University Press

open access: yesJournal of Portuguese Linguistics, 2017
This volume, part of the series Oxford Studies in Comparative Syntax, contains fourteen chapters, in addition to a foreword by the editors. It is devoted to the formal analysis of different aspects of American varieties of Portuguese and Spanish, while ...
Aroldo Leal de Andrade
doaj   +2 more sources

Reconsidering Economic Relations and Political Citizenship in the New Iberia of the New Europe: Some Lessons from the Fifteenth Anniversary of the Accession of Portugal and Spain to the European Union. CES Working Paper, no. 94, 2003 [PDF]

open access: yes, 2003
The purpose of this paper is to use the fifteenth anniversary of the accession of Portugal and Spain to the European Union as an opportunity to reflect on what has happened to both countries since 1986.
Manuel, Paul Christopher.   +1 more
core  

POM‐Based Water Splitting Catalyst Under Acid Conditions Driven by Its Assembly on Carbon Nanotubes

open access: yesAdvanced Materials, EarlyView.
A newly‐engineered POM‐based electrocatalyst incorporating non‐innocent counter cations exhibits fast kinetics for either the OER or HER under strongly acidic conditions (1 m H2SO4), depending on whether it is assembled on carbon nanotubes (1@CNT) or physically mixed with them (1/CNT). In water‐splitting tests using a two‐electrode setup, these systems
Eugenia P. Quirós‐Díez   +8 more
wiley   +1 more source

Annotated world bibliography of host fruits of Bactrocera latifrons (Hendel) (Diptera: Tephritidae) [PDF]

open access: yes, 2013
Bactrocera latifrons (Hendel) (Diptera: Tephritidae) infests fruits and vegetables of a number of different plant species, with host plants primarily found in the plant families Solanaceae and Cucurbitaceae. Although B.
Liquido, Nicanor J., McQuate, Grant T.
core  

Molecular characterisation of congenital myasthenic syndromes in Southern Brazil [PDF]

open access: yes, 1989
Objective To perform genetic testing of patients with congenital myasthenic syndromes (CMS) from the Southern Brazilian state of Parana. Patients and methods Twenty-five CMS patients from 18 independent families were included in the study.
Abicht, A.   +12 more
core   +1 more source

Resolving Complex Multiscale Structure of Magneto‐ and Electroactive Polymer Composites With an Ionic Liquid

open access: yesAdvanced Materials, EarlyView.
Multiscale ionic liquid segregation into nano‐sized domains in the unconfined amorphous polymer phase and into micron‐sized pores enables a coupled magneto‐ and electroactive responses. ABSTRACT A multiscale understanding of the structure of ionogels – nanoparticle‐free polymer composites incorporating ionic liquids – is essential for enhancing their ...
Andrey Shibaev   +16 more
wiley   +1 more source

Engineering Education in Iberian America [PDF]

open access: yes, 2011
The large Continent of America has in its territory besides overseas regions, dependencies and colonies 35 sovereign countries, 25 in North America and 12 in South America.
Brito, Claudio da Rocha   +4 more
core   +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

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