Epidemic Model
Mostrando 1-12 de 108 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. Numerical Simulations of the SEIR Epidemiological Model with Population Heterogeneity to Assess the Efficiency of Social Isolation in Controlling COVID-19 in Brazil
ABSTRACT On 30 January 2020, the World Health Organization (WHO) officially declared the epidemic of Coronavirus (COVID-19), which is a highly contagious virus that has been causing deaths worldwide. Early treatment was proven to be inefficient and social isolation became the main factor inhibiting the disease, before vaccination. In this article, we evaluat
Trends in Computational and Applied Mathematics. Publicado em: 2022
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3. TRANSEXUAL “WOMANHOOD” AND THE EMERGENCE OF TRANSFEMINISM: RHETORICS OF HIV/AIDS IN THE LIGHT OF THE QUEER THEORY
RESUMO Objetivo: analisar a identidade transexual feminina e a emergência pelo transfeminismo mediante o contexto de vulnerabilidade ao HIV/aids à luz da Teoria Queer. Método: estudo qualitativo, descritivo, exploratório, fundamentado na Teoria Queer, realizado em um Hospital de referência para HIV/aids do estado de Pernambuco, desenvolvido com seis
Texto contexto - enferm.. Publicado em: 15/07/2019
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4. Etiology, occurrence and epidemiology of a begomovirus disease in passionflower in the southwest of Bahia
ABSTRACT: Severe mosaic symptoms, accompanied by yellow spots, abnormally small leaves, fruit malformation and cracking, reduced plant growth, and high levels of whitefly (Bemisia tabaci MEAM1) infestation were observed in passionflower (Passiflora edulis) orchards in southwestern Bahia, Brazil. The aim of this work was to identify the species of begomovirus
Sci. agric. (Piracicaba, Braz.). Publicado em: 2019-07
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5. How many AIDS epidemics can occur in São Paulo city?
ABSTRACT OBJECTIVE An ecological study describring the spatial characteristics of AIDS in São Paulo city between 2001 and 2010 according to the place of residence of reported cases in adults. METHODS The AIDS reported cases (28,146), grouped by sex, were geocodified (25,969) and linked with a census tract database (18,953). Case and population at risk d
Rev. Saúde Pública. Publicado em: 28/05/2018
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6. Risk behavior score: a practical approach for assessing risk among men who have sex with men in Brazil
ABSTRACT HIV/AIDS epidemic is not well controlled, and multiple sexual behavior factors help explain high rates of HIV infection among men who have sex with men (MSM). This article proposes to exam the use of a potential risk behavior score for HIV infection, based on the type and number of sexual partners, and condom use, and their associated factors in a s
Braz J Infect Dis. Publicado em: 2018-03
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7. Mathematical modelling of vector-borne diseases and insecticide resistance evolution
Abstract Background: Vector-borne diseases are important public health issues and, consequently, in silico models that simulate them can be useful. The susceptible-infected-recovered (SIR) model simulates the population dynamics of an epidemic and can be easily adapted to vector-borne diseases, whereas the Hardy-Weinberg model simulates allele frequencies a
J. Venom. Anim. Toxins incl. Trop. Dis. Publicado em: 08/02/2018
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8. High HIV infection prevalence in a group of men who have sex with men
ABSTRACT Brazil is characterized by a concentrated AIDS epidemic, it has a prevalence of less than 1% in the general population. However, there are higher rates in specific populations, especially in men who have sex with men. The study's aim was to analyze the association between sociodemographic characteristics, sexual practices, sexual behaviors and the H
Braz J Infect Dis. Publicado em: 2017-12
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9. Overweight in youth and sleep quality: is there a link?
ABSTRACT Objective Overweight seems to be related to a higher prevalence of sleep disturbances. Decreased sleep duration and altered sleep quality are risk factors for obesity. Our aim was to compare the sleep pattern of overweight children with that of a matched control group and assess the relationship between sleep quality and obesity. Materials and me
Arch. Endocrinol. Metab.. Publicado em: 26/06/2017
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10. Mapping the global geographic potential of Zika virus spread
The Americas are presently experiencing the most serious known outbreak of Zika virus (ZIKV). Here, we present a novel set of analyses using environmental characteristics, vector mosquito distributions, and socioeconomic risk factors to develop the first map to detail global ZIKV transmission risk in multiple dimensions based on ecological niche models. Our
Mem. Inst. Oswaldo Cruz. Publicado em: 2016-09
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11. New concepts in white adipose tissue physiology
Numerous studies address the physiology of adipose tissue (AT). The interest surrounding the physiology of AT is primarily the result of the epidemic outburst of obesity in various contemporary societies. Briefly, the two primary metabolic activities of white AT include lipogenesis and lipolysis. Throughout the last two decades, a new model of AT physiology
Braz J Med Biol Res. Publicado em: 18/02/2014
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12. Virulence variation among epidemic and non-epidemic strains of Saint Louis encephalitis virus circulating in Argentina
Saint Louis encephalitis virus caused an outbreak of febrile illness and encephalitis cases in Córdoba, Argentina, in 2005. During this outbreak, the strain CbaAr-4005 was isolated from Culex quinquefasciatus mosquitoes. We hypothesised that this epidemic variant would be more virulent in a mouse model than two other non-epidemic strains (78V-6507 and CorAn
Mem. Inst. Oswaldo Cruz. Publicado em: 2014-02