Sample Entropy
Mostrando 1-12 de 24 artigos, teses e dissertações.
-
1. Cinética de secagem e propriedades termodinâmicas da polpa de patauá (Oenocarpus bataua Mart.)
Resumo O patauá é uma fruta amazônica que, devido às suas propriedades sensoriais e nutricionais atrativas, tem despertado o interesse da comunidade científica. Entretanto, o elevado conteúdo de umidade confere alta perecibilidade ao produto fresco. Assim, objetivou-se estudar a cinética de secagem convectiva e determinar as propriedades termodinâmic
Braz. J. Food Technol.. Publicado em: 25/11/2019
-
2. Respostas autonômicas de recém-nascidos prematuros ao posicionamento do corpo e ruídos ambientais na unidade de terapia intensiva neonatal
RESUMO Objetivo: Avaliar as respostas fisiológicas e do sistema nervoso autônomo de recém-nascidos prematuros ao posicionamento do corpo e ruídos ambientais na unidade de terapia intensiva neonatal. Métodos: Este foi um estudo quasi-experimental. O sistema nervoso autônomo de recém-nascidos foi avaliado com base na variabilidade da frequência card�
Rev. bras. ter. intensiva. Publicado em: 14/10/2019
-
3. Recurrence Plots: a New Tool for Quantification of Cardiac Autonomic Nervous System Recovery after Transplant
Abstract Objective: To evaluate a possible evolutionary post-heart transplant return of autonomic function using quantitative and qualitative information from recurrence plots. Methods: Using electrocardiography, 102 RR tachograms of 45 patients (64.4% male) who underwent heart transplantation and that were available in the database were analyzed at differ
Braz. J. Cardiovasc. Surg.. Publicado em: 2017-08
-
4. CREDIT SCORING MODELING WITH STATE-DEPENDENT SAMPLE SELECTION: A COMPARISON STUDY WITH THE USUAL LOGISTIC MODELING
Statistical methods have been widely employed to assess the capabilities of credit scoring classification models in order to reduce the risk of wrong decisions when granting credit facilities to clients. The predictive quality of a classification model can be evaluated based on measures such as sensitivity, specificity, predictive values, accuracy, correlati
Pesqui. Oper.. Publicado em: 2015-04
-
5. Epidemiologia dos subtipos de depressão: análise de classes latentes dos sintomas depressivos em uma amostra populacional da região Metropolitana de São Paulo / Epidemiology of subtypes of depression: latent class analysis of depressive symptoms in a population-based sample of São Paulo Metropolitan Area
Introduction. Depression is a heterogeneous clinical syndrome characterized by distinct symptom profiles. However, few studies have investigated depressive subtypes in the community and their sociodemographic and clinical correlates, differentiating them on the presentation according to gender. Methods. Data comes from the São Paulo Megacity Mental Health S
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 31/08/2012
-
6. Scientific production of entropy and information theory in Brazilian journals
This article aims at giving an overview of the scientific production about Entropy and Information Theory in national periodical publications in Qualis/CAPES. This article is a descriptive research and a bibliometric study with a quantitative approach. Its sample is composed of 31 articles from periodic publications from different areas, such as: Accounting,
JISTEM J.Inf.Syst. Technol. Manag.. Publicado em: 2012-08
-
7. Differentiated risk models in portfolio optimization: a comparative analysis of the degree of diversification and performance in the São Paulo Stock Exchange (BOVESPA)
Faced with so many risk modeling alternatives in portfolio optimization, several questions arise regarding their legitimacy, utility and applicability. In particular, a question arises involving the adherence of the alternative models with regard to the basic presupposition of Markowitz's classical model, with regard to the concept of diversification as a me
Pesqui. Oper.. Publicado em: 28/06/2012
-
8. Comparison of diversity indices applied to macrophyte incidence-based data
In this work, a recently proposed diversity index based on Patil and Taillie parametric diversity measure (or Tsallis entropy), Sq*, was applied to samples (presence-absence data) of macrophytes from the Itaipu Reservoir, Brazil. This new index was the value of the family of indices Sq for a specific evenness of a sample. Results demonstrated that the Shanno
Brazilian Archives of Biology and Technology. Publicado em: 2012-04
-
9. Variáveis urbanas na estruturação de assembleia de aves
Spatial organization of a city and the way how infrastructure is organized to attend human population needs, imposes different effects on the organization of assemblies. This study evaluated how the characteristics of an urban environment and the different intensities of urbanization act in avifauna organization. We verified the responses related to traditio
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
-
10. Caracterização da conectividade entre regiões cerebrais via entropia aproximada e causalidade de Granger. / Brain connectivity characterization via approximate entropy and Granger causality.
Essa dissertação apresenta o desenvolvimento métodos para caracterização da conectividade entre séries temporais neurofisiológicas. Utilizam-se metodologias provenientes da Teoria da Informação Entropias Aproximada e Amostral para representar a complexidade da série no tempo, o que permite inferir como sua variabilidade se transfere a outras sequê
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 02/08/2011
-
11. Ecologia e modelagem da distribuição dos sítios de nidificação do jacaré-açu (Melanosuchus niger) em uma área de várzea da Amazônia Central, Brasil
The black caiman, Melanosuchus niger, is primarily an Amazonian species, its largest populations are associated mainly with interior várzea areas, but its nesting ecology related with these hydrologic dynamic environments is still poorly understood. The objectives of this study were related to the generation of information on the nesting ecology of this spe
Publicado em: 2009
-
12. Sistemas para manipulação quantica em estado solido / Towards an implementation of quantum manipulation in solid states
This thesis proposes and implements a system for quantum information processing, focusing primarily on the associated instrumentation. The basic physical aspects for computation, such as the associated energy and Shannon s entropy, were revisited. InAs:GaAs quantum dots were elected as the physical system of choice for this implementation; in particular, the
Publicado em: 2008