Results 191 to 200 of about 561,321 (391)

Room‐Temperature Surface Exciton Polaritons in Colloidal J‐Aggregate Flakes

open access: yesAdvanced Optical Materials, EarlyView.
Colloidal J‐aggregate flakes, synthesized via electrostatic assembly of cyanine molecules and a polyelectrolyte, exhibit robust excitonic properties and support surface exciton polaritons at room temperature. Their strong scattering and tunable optical response introduce a versatile, solution‐processable platform for advanced photonic and quantum ...
Carla Estévez‐Varela   +8 more
wiley   +1 more source

Arquitectura eclesiástica en León en el Alto- medievo. Una lectura a través de los mate- riales y los documentos

open access: yesArqueología y Territorio Medieval, 2017
El siguiente trabajo se centra en el estudio de un conjunto de edificios religiosos situados en el norte de la Península Ibérica. Estas iglesias tienen unas características constructivas y escultóricas afines, una cronología que comprende los siglos
Marta Rielo Ricón
doaj  

Mercosul, competitividade e educação [PDF]

open access: yesEstudos Avançados, 1998
Piletti, Nelson, Praxedes, Walter
openaire   +5 more sources

Tailoring Chiral Gold Nanorods via Single‐Step Seed‐to‐Au(III) Ratio and Unlocking their Potential in Refractive Index Sensing

open access: yesAdvanced Optical Materials, EarlyView.
A single‐step tunable chiral growth of Au NRs with controllable circular dichrosim (CD) response is reported, and the application of narrow CD response for biosensing with superior Figures of Merit (FoM = RIS/linewidth) over conventional extinction‐based approach in sensitivity is demonstrated.
Carlos Fernández‐Lodeiro   +11 more
wiley   +1 more source

Una mirada a la competitividad

open access: yesDictamen Libre, 2017
Los países han abierto sus fronteras y generaron políticas aperturistas, cuya situación nos crea grandes expectativas para la evolución del mundo de los negocios: dando oportunidad a las empresas de re direccionarse para la conquista de nuevos mercados, por lo que se ven en la necesidad de atender los retos de la competitividad, no solo como una moda ...
openaire   +3 more sources

Local p‐ and n‐Type Doping of an Oxide Semiconductor via Electric‐Field‐Driven Defect Migration

open access: yesAdvanced Science, EarlyView.
Local acceptor and donor doping is achieved in a semiconducting oxide by controlled splitting of oxygen interstitial‐vacancy pairs under applied d.c. voltage. The separated oxygen defects are demonstrated to form interstitial‐rich (p‐type) and vacancy‐rich (n‐type) regions, comparable to dipolar npn‐junctions, enabling transient functionalization ...
Jiali He   +14 more
wiley   +1 more source

Competitividad: ¿Nuevo paradigma económico?

open access: yesFórum Empresarial, 2005
La competitividad se constituye hoy día como el “nuevo” paradigma que permite triunfar en el mercado global. De ser así, es inevitable preguntarse, si acaso, en tiempos pasados no se requería ser competitivo para tener éxito en el comercio internacional. Reconociendo la discusión en torno al tema y su densidad teórico-conceptual, en el presente trabajo
openaire   +4 more sources

Peptide Electrostatic Modulation Directs Human Neural Cell Fate

open access: yesAdvanced Science, EarlyView.
This study explores the effect of charge on the bioactivity of peptide‐based supramolecular materials. The design of a peptide library with varying charges that self‐assemble into supramolecular fibers is presented, demonstrating how the surface charge of these fibers, used as artificial extracellular matrices, influences the fate of human neural ...
Laura Perez‐Chirinos   +10 more
wiley   +1 more source

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