Results 101 to 110 of about 7,701,665 (338)

One‐Step Synthesis of Size‐Controlled Copper Oxide Nanoparticles on Laser‐Induced Graphene Sensor for L‐Cysteine Detection

open access: yesAdvanced Electronic Materials, EarlyView.
Oxygen plasma treatment enhances polyimide hydrophilicity and promotes uniform anchoring of copper ion precursors. A one‐step laser process then generates CuO‐decorated nanoparticles on laser‐induced graphene (LIG) electrodes, enabling controlled nanoparticle growth via precursor concentration tuning.
Gustavo Miguel Sousa   +6 more
wiley   +1 more source

A simple model for inflation targeting in Brazil

open access: yesEconomia Aplicada, 2002
Based on a 6 equation model by Haldane and Battini (1999), we estimated a Phillips and an IS equations for Brazil after the Real Plan, in order to study the transmission mechanism of the monetary policy.
Paulo Springer de Freitas   +1 more
doaj  

Organizações e reivindicações indígenas no Brasil central

open access: yesLes Cahiers ALHIM, 2019
The present work is located in the Center-West region of Brazil and seeks to discuss the reality of the Guarani people and their effective participation in indigenous organizations created since the 1980s and pushed with the approval of the new Federal Constitution (1988).
Antonio H.  Aguilera  Urquiza   +2 more
openaire   +1 more source

Conservadorismo e independência no Banco Central do Brasil

open access: yesRevista Economia & Tecnologia, 2011
O Banco Central do Brasil é sistematicamente criticado por suas decisões sobre a taxa básica de juros (SELIC), acusado de ser excessivamente preocupado ou muito leniente com a inflação. Caso o Banco Central estivesse tendo um viés sistemático em suas decisões, a taxa de inflação deveria estar muito mais alta ou muito mais baixa do que a observada, a ...
openaire   +2 more sources

Cuarteto de guitarras de Brasil (Brasil)

open access: yes, 2014
Concierto interpretado por el Cuarteto de Guitarras de Brasil. Ganador del Premio Grammy Latino del 2011 en la categoría de "mejor álbum clásico", el Cuarteto de Guitarras de Brasil se ha posicionado como uno de los principales grupos de guitarra del ...
Cuarteto de guitarras de Brasil - Cuarteto de guitarras (Brasil)
core  

Modulation of Local Environment for Selective Bicarbonate Conversion to Multi‐Carbon Products

open access: yesAdvanced Energy Materials, EarlyView.
Highly porous Cu electrode partially coated with an ionomer/carbon composite enables efficient conversion of bicarbonate to multi‐carbon products. By regulating the local reaction microenvironment, this strategy overcomes selectivity and reaction‐rate limitations, achieving Faradaic efficiencies of 43% for ethylene and 60% for total multi‐carbon ...
Tai Nguyen   +15 more
wiley   +1 more source

Credit channel without the LM curve

open access: yesEconomia Aplicada, 2001
This paper extends Bernanke and Blinder (1988)'s macroeconomic model of credit channel to an environment where the monetary authority has control over a short-term interest rate.
Victorio Y. T. Chu, Marcio I. Nakane
doaj  

Central Africa [cartographic material].

open access: yes, 2000
Map of Central Africa showing international boundaries, water features and main cities.; "802693AI (R02414) 4-00"; Relief shown by shading.; Also available online http://nla.gov.au/nla.map ...
United States. Central Intelligence Agency.
core  

Keeping Pace or Falling Behind? The Depth of Latin American Trade Agreements

open access: yesApplied Economic Perspectives and Policy, EarlyView.
ABSTRACT This article examines whether Latin American countries are keeping pace with global trends in trade agreement depth or falling behind. Using 681 agreements (1970–2019), we develop the Depth Index of Trade Agreements (DITA) to weight provisions endogenously through factor analysis based on co‐occurrence patterns.
Raphael Gomes da Silva   +2 more
wiley   +1 more source

Governança cooperativa: as funções de fiscalização e controle em cooperativas de crédito no Brasil

open access: yesRevista de Contabilidade e Organizações, 2008
O objetivo do artigo é analisar as funções de fiscalização e controle nas cooperativas de crédito como elementos necessários às boas práticas de governança nessas organizações, e propor instrumentos e condições para que, sem impactos significativos em ...
Maria de Fátima Cavalcanti Tosini   +1 more
doaj  

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