Generalization
Mostrando 1-12 de 481 artigos, teses e dissertações.
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1. Dynamic Systems with Fractional Derivatives Applied to Interagent Populations Problems
ABSTRACT The present work has as main objective to investigate the use of fractional calculus in the modeling of epidemic outbreaks of interacting populations. In particular, we propose a generalization of the SIR model with fractional derivatives to describe the dynamics of the COVID-19 epidemic outbreak in two cities with interacting populations. In specia
Trends in Computational and Applied Mathematics. Publicado em: 2022
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2. Electromagnetic Transients in Multiconductor Transmission Lines
Abstract The theory of multiconductor transmission lines is based on the principle of superposition. According to this principle, any electric or magnetic field can be represented as the sum of individual electric or magnetic fields. This theory is used to analyze and design electrical systems involving multiple conductors. In this work, the procedures for a
Journal of Microwaves, Optoelectronics and Electromagnetic Applications. Publicado em: 2022
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3. Rapid Recognizing the Producing Area of a Tobacco Leaf Using Near-Infrared Technology and a Multi-Layer Extreme Learning Machine Algorithm
A novel recognition method was put forward to identify the producing areas of the flue-cured tobacco leaves rapidly and non-destructively by using a near-infrared (NIR) spectrometer and a multi-layer-extreme learning machine (ML-ELM) algorithm. In contrast to traditional linear discriminant analysis (LDA) and extreme learning machine (ELM) algorithms, the ac
Journal of the Brazilian Chemical Society. Publicado em: 2022
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4. Population neuroscience: challenges and opportunities for psychiatric research in low- and middle-income countries
Objective: Population neuroscience is an emerging field that combines epidemiology and neuroscience to study how genes and the environment shape typical and atypical brain functioning. The objective of this study was to review key studies on population neuroscience from low- and middle-income countries (LMICs) and to identify potential gaps vis-à-vis studi
Braz. J. Psychiatry. Publicado em: 2020-08
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5. A UNIFIED FORMULA FOR HYDROCARBONS WITH APPLICATIONS TO FUNCTIONAL GROUPS
Was supposed a numerical relationship between atoms of Hydrogen and Carbon in a hydrocarbon, assumption valid for all types of chains. In the proposed equation, variables such as number and types of carbon bonds are present, as well as the possible cycles. It was shown that the equation reduces to the known “general formulas” when applied to the type of
Quím. Nova. Publicado em: 20/07/2020
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6. Validation of white oat yield estimation models using vegetation indices
ABSTRACT The use of remote sensing in agriculture presents some practical applications in crop production forecast. In this context, studies with remote sensing are scarce for crops such as white oats, which may indicate the capacity of using this technique in the crop. The aim of this study was to evaluate the accuracy in validation of white oat biomass and
Bragantia. Publicado em: 2020-06
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7. Descriptores del Desarrollo de la Mirada Profesional en el Contexto de la Generalización de Patrones
Abstract The objective of this research is to generate descriptors of the development of the competence of professional looking into children's mathematical thinking for prospective teachers (PPT) in the context of pattern generalization. To this end, future teachers were asked to describe the answers of Elementary education students to one problem of the pa
Bolema. Publicado em: 02/12/2019
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8. Teaching a Child with Cochlear Implant to Read Words with Orthographic Difficulties
Resumo Considerando os efeitos do ensino de leitura sobre a precisão da fala de crianças com deficiência auditiva e implante coclear apresentados na literatura, o objetivo deste estudo foi verificar os efeitos do Módulo 2 do ALEPP® sobre a precisão da fala em leitura de palavras com dificuldades ortográficas a uma criança usuária de implante coclear
Trends Psychol.. Publicado em: 28/11/2019
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9. Dementia screening in Brazil: a systematic review of normative data for the mini-mental state examination
The Mini-Mental State Examination (MMSE) is the most widely used instrument for the screening of older adults with suspected cognitive impairment; the MMSE has been translated and validated in numerous languages and countries. The cultural and sociodemographic characteristics of the sample can influence performance on the test; therefore, applying the MMSE i
Clinics. Publicado em: 07/11/2019
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10. The Age of Migration Crisis
Resumo: O artigo analisa as transformações históricas na formulação de políticas migratórias entre os séculos XIX e XXI, sintetizando a emergência de uma “era da crise migratória”. A primeira seção discute por que a migração internacional constitui um problema para as concepções políticas dos Estados nacionais. A segunda seção enfatiza
Tempo. Publicado em: 21/10/2019
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11. Democratization and Intelligence and Internal Security Agencies: A Comparative Analysis of the Cases of Brazil and Portugal (1974-2014)
The development of intelligence and internal security institutions in Portugal and Brazil were directly influenced by the ways in which both countries transitioned to democracy and by the nature of their political regimes prior to the mid-1970s. This article compares these processes, highlighting how Brazilian and Portuguese intelligence and public security
Bras. Political Sci. Rev.. Publicado em: 17/10/2019
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12. Body dysmorphic disorder in patients attending a dermatology clinic in Nigeria: sociodemographic and clinical correlates
Abstract: Background: Body dysmorphic disorder is a relatively common psychiatric disorder in the context of dermatology and cosmetic and plastic surgery but is underdiagnosed and underreported in Africa. Objective: To evaluate the prevalence of body dysmorphic disorder and symptoms of anxiety/depression and determine their sociodemographic and clinical co
An. Bras. Dermatol.. Publicado em: 17/10/2019