Gdp
Mostrando 1-12 de 1158 artigos, teses e dissertações.
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1. Autonomic and cardiorespiratory responses to the active tilt test in individuals with Parkinson disease: cross-sectional study
Resumo Antecedentes A doença de Parkinson (DP) está frequentemente associada a disfunções autonômicas. Porém, dados sobre a influência da DP nas respostas autonômicas às mudanças posturais são limitados. Objetivos Analisar e comparar as respostas autonômicas, avaliadas por métodos lineares e não lineares de variabilidade da frequência cardí
Arquivos de Neuro-Psiquiatria. Publicado em: 2022
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2. Global shocks in emerging economies: An empirical investigation
Resumo Shocks in commodity prices are viewed as a major driver of emerging economies’ business cycle. We show this is not the case for Brazil, Chile, Colombia, and Peru when a structural vector autoregressive model accounts for macro-finance linkages at world and domestic levels. The presence of a global financial variable modifies established results as i
Revista Brasileira de Economia. Publicado em: 2022
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3. Synthesis and Molecular Modeling Study of Two Bromo-Dimethoxybenzaldehydes
This work describes the synthesis, molecular structure, and packaging of the compounds 6-bromo-2,3-dimethoxybenzaldehyde (6-BRB) and 5-bromo-2,3-dimethoxybenzaldehyde (5 BRB). Characterization in the solid-state was carried out by X-ray diffraction, and the analysis of the interactions was described by the Hirshfeld surface, which helps in understanding the
Journal of the Brazilian Chemical Society. Publicado em: 2022
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4. A Theoretical Antioxidant Mechanism for Cytoprotective Effect of p-Acetamide-Salicylate Derivatives against Free Radical Initiator AAPH in Human Erythrocytes
The molecular mechanism of cytoprotective effect on human erythrocytes of aminophenol and salicylates associated derivatives was related to their antioxidant capacity. The oxidative hemolysis induced by water-soluble free-radical initiator 2,2’-azobis-(2-amidine-propane)-dihydrochloride (AAPH) was inhibited by drug candidates named benzaminophen (BZL), sal
J. Braz. Chem. Soc.. Publicado em: 2021-07
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5. Synthesis, Spectroscopic Characterization, DFT Calculations and Preliminary Antifungal Activity of New Piperine Derivatives
Four new piperine derivatives, PC1-PC4, were synthesized, and their structures were fully characterized by infrared (IR) and 1H and 13C nuclear magnetic resonance (NMR) spectroscopies. Quantum chemical calculations were performed using density functional theory (DFT) with the B3LYP-D3/6-31G(d,p) and 6-311+G(2d,p) basis sets. Electronic properties, such as th
J. Braz. Chem. Soc.. Publicado em: 2021-03
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6. A paralisia facial unilateral é realmente causada pelo SARS-CoV-2?
RESUMO Introdução: A doença de Parkinson (DP) produz alterações autonômicas, que indicam menor modulação parassimpática e variabilidade global, mas que devem ser investigadas quanto aos métodos geométricos. Objetivo: Investigar a modulação autonômica em indivíduos com DP, por meio de índices de variabilidade da frequência cardíaca (VFC) o
Arq. Neuro-Psiquiatr.. Publicado em: 2021-02
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7. Efeito da doença de Parkinson na modulação autonômica: análise por meio de índices geométricos
RESUMO Introdução: A doença de Parkinson (DP) produz alterações autonômicas, que indicam menor modulação parassimpática e variabilidade global, mas que devem ser investigadas quanto aos métodos geométricos. Objetivo: Investigar a modulação autonômica em indivíduos com DP, por meio de índices de variabilidade da frequência cardíaca (VFC) o
Arq. Neuro-Psiquiatr.. Publicado em: 2021-02
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8. A Note on the Effect of Decomposing Credit for Explaining Brazilian Cross-State GDP Growth
Resumo Este artigo agrega à literatura sobre sistema financeiro e desenvolvimento ao propor um exercício empírico que visa entender os canais através dos quais as variáveis de crédito são capazes de promover o crescimento econômico. Estima-se uma um painel em diferença de uma versão ampliada da modelagem de crescimento a la Barro. Mensura-se assim,
Rev. Bras. Econ.. Publicado em: 2020-06
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9. THEORETICAL CALCULATIONS ABOUT THE THERMAL STABILITY AND DETONATION CHARACTER OF NITRAMINO-SUBSTITUTED PYRROLE
A series of nitramino-derivatives of pyrrole were designed through introducing the nitramino group into pyrrole ring to look for high-energy-density compounds. The molecular stabilities are explored thoroughly based on the calculated heats of formation, bond dissociation energy, and bond order at the B3PW91/6-311+G(d,p) level. The results indicated that the
Quím. Nova. Publicado em: 2020-03
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10. Mapeamento da produção científica da Indústria 4.0 no contexto dos BRICS: reflexões e interfaces
Resumo Este artigo analisa o perfil atual da produção científica sobre a Indústria 4.0 do grupo de países emergentes formado por Brasil, Rússia, Índia, China e África do Sul (BRICS), constante nos periódicos de impacto. A Indústria 4.0 incorpora nove inovações tecnológicas que se relacionam, direta e indiretamente, com a evolução da Ciência e
Cad. EBAPE.BR. Publicado em: 20/01/2020
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11. Acid-Catalyzed Z-E Isomerization of γ-Alkylidenebutenolides: An Experimental and DFT Study
The Z-E isomerization of γ-alkylidenebutenolide analogues to natural nostoclides and other natural butenolides was investigated using 1H nuclear magnetic resonance (NMR) and high performance liquid chromatography (HPLC) data as well as density functional theory (DFT) calculations at the wB97x-D/6-31G(d,p) level, including solvent effects with the polarizabl
J. Braz. Chem. Soc.. Publicado em: 2020-01
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12. Retrospective cost-utility and budget impact assessments of Hypericum perforatum in contrast with Fluoxetine treatment for depression in Karachi, Pakistan
In this study we have compared two different types of therapies i.e. herbal and allopathic system of therapies for Depression and studied them from the social perspectives. The Hypericum perforatum is compared with Fluoxetine [HCL] in terms of cost-utility and financial savings thereby evaluating its influence on annual expenditure of depressive patients tha
Braz. J. Pharm. Sci.. Publicado em: 20/12/2019