Results 61 to 70 of about 1,188,396 (290)
Advanced Science, EarlyView.This study presents sulfate‐directed silver dendrites (s‐AgDs) as oxidation‐resistant SERS substrates with long‐term stability, reproducibility, and sub‐picomolar sensitivity. Sulfate ions guide anisotropic growth and protect the surface, enabling improved performance over 7 months under ambient conditions.
Aradhana Dwivedi +6 more
wiley +1 more source
Tariffs and the Plano Real In Brazil [PDF]
CEPAL Review, 1998 This article analyses the economic rationale of Brazil's tariff policy during the first two years of the Plano Real. To this end, a study is made of the changes made in import duties for all the products traded. The tariff reform process in Brazil was begun in 1988, after the old Tariff Act had been in effect for thirty years, and represented a marked ...
openaire +1 more source
El plànol geomètric d'Elx del 1849 [PDF]
, 1991 Este artículo estudia un extraordinario documento conservado en el Archivo Histórico Municipal de Elche: el plano geométrico de la ciudad a escala 1/1.250, y el borrador previo que sirvió para el delineado final.
Jaén i Urban, Gaspar
core +1 more source
Focusing by Plano-Concave lens using Negative Refraction
, 2005 We demonstrate focusing of a plane microwave by a plano-concave lens fabricated from a photonic crystal (PhC) having negative refractive index and left-handed electromagnetic properties.
Lu, W. T. +3 more
core +1 more source
Smart Optogenetics for Real‐Time Automated Control of Cardiac Electrical Activity
Advanced Science, EarlyView.We are able to stop dangerous heart‐rhythm spirals before they fully form. Within about 100 ms, it pinpoints the spiral's tiny central tip (≈0.9 mm) using light‐based sensing and machine learning, then shines targeted light to shut it down. This fast, precise, closed‐loop approach detects, targets, and terminates arrhythmias in real time.
Shanliang Deng +15 more
wiley +1 more source
Tomás soler y Ferrer, arquitecto de la Bailía General del Real Patrimonio de Cataluña [PDF]
, 2014 Tomàs Soler i Ferrer és conegut, sobretot, com a autor del plànol del Rec Comtal (1836), previ a la urbanització del pla de Barcelona. Aquest plànol culmina una carrera al servei de la Batllia General del Reial Patrimoni, on ja havia treballat el seu ...
Rodríguez Olivares, Mª Luz
core
Research Design, as Independent of Methods [PDF]
, 2010 Objectives •Readers of this chapter should be in a better position to: •Understand the process of research design •Place their own and others work within a full cycle or programme of ongoing research •Understand why good research almost always ...
Gorard, Stephen
core +1 more source
Selective Ion‐Blocking Strategy for Stabilizing Perovskite Tandem Solar Cells
Advanced Energy Materials, EarlyView.A selective ion‐blocking Li─T interlayer is introduced at LiF‐passivated perovskite interfaces to suppress fluorine diffusion while preserving the beneficial interfacial passivation of LiF. This ion‐blocking strategy markedly improves the long‐term operational stability of both single‐junction and monolithic all‐perovskite tandem cells under continuous
Sunwoo Kim +15 more
wiley +1 more source
Plano real - Direito adquirido - reajuste salarial
Revista de Direito Administrativo, 1995 .
openaire +1 more source
What moves stock prices? an approach on the influence of news on stock market [PDF]
, 2012 Esta pesquisa analisou os dias de negociação da Bolsa de Valores de São Paulo, entre 1990 a 2011, e selecionou as maiores altas e as maiores baixas. A fonte inspiradora foi o trabalho de Cutler et al. (1989).
Carvalho, Claudilene Chaves de +2 more
core