scispace - formally typeset
Search or ask a question
Institution

Universidade de Pernambuco

EducationRecife, Brazil
About: Universidade de Pernambuco is a education organization based out in Recife, Brazil. It is known for research contribution in the topics: Population & Artificial neural network. The organization has 6147 authors who have published 6948 publications receiving 73648 citations.


Papers
More filters
Journal ArticleDOI
TL;DR: It was concluded total acid etching followed by application of One Step bonding agent cannot be recommended as adequate procedures and in this clinical condition the cavity walls should be lined with a biocompatible dental material, such as Vitrebond or Dycal.

117 citations

Journal ArticleDOI
TL;DR: The percentage of adolescents exposed to health risk behaviors was high, especially when simultaneous exposure to different behaviors was considered, and these results can contribute to developing health promotion campaigns for the school setting that are specifically aimed at the risk subgroups identified.
Abstract: OBJETIVO:Determinar a prevalencia de comportamentos de risco a saude e analisar fatores associados a exposicao a esses comportamentos em adolescentes do Estado de Santa Catarina, Brasil METODO: Adolescentes escolares de 240 turmas do ensino medio da rede publica estadual responderam a um questionario para a coleta de informacoes demograficas (sexo, idade, regiao de residencia e periodo de estudo), socioeconomicas (trabalho e renda familiar mensal) e de comportamentos de risco a saude (niveis insuficientes de atividade fisica, baixo consumo de frutas/verduras, tabagismo, consumo abusivo de bebidas alcoolicas, consumo de drogas ilicitas, envolvimento em brigas e nao utilizar preservativos regularmente nas relacoes sexuais) RESULTADOS: Foram considerados validos os questionarios de 5 028 adolescentes (2 984 do sexo feminino e 2 044 do sexo masculino), com idade entre 15 e 19 anos (media = 17,0; desvio padrao = 1,12) Os comportamentos de risco mais prevalentes na amostra foram niveis insuficientes de atividade fisica (36,5%), baixo consumo de frutas/verduras (46,5%) e nao utilizar preservativos regularmente nas relacoes sexuais (38,3%) Aproximadamente sete em cada 10 adolescentes (64,7%) estavam expostos a dois ou mais comportamentos de risco de forma simultânea Os seguintes subgrupos de risco foram identificados: adolescentes do sexo masculino, adolescentes de 18 a 19 anos de idade, que residem em area urbana, que estudam no periodo noturno e que tem maior renda familiar CONCLUSOES: A proporcao de adolescentes expostos a comportamentos de risco a saude foi elevada, principalmente ao se considerar a exposicao simultânea a diferentes comportamentos Os resultados encontrados podem contribuir para o desenvolvimento de programas de promocao da saude no ambiente escolar, direcionados principalmente aos subgrupos de risco

117 citations

Journal ArticleDOI
TL;DR: In microcephaly at birth, except for polymicrogyria, all patients showed abnormalities described in the literature, and in postnatal microCEphaly, the only abnormalities not seen were a simplified gyral pattern and calcifications outside the cortico-subcortical junction.
Abstract: BACKGROUND AND PURPOSE: Although microcephaly is the most prominent feature of congenital Zika syndrome, a spectrum with less severe cases is starting to be recognized Our aim was to review neuroimaging of infants to detect cases without microcephaly and compare them with those with microcephaly MATERIALS AND METHODS: We retrospectively evaluated all neuroimaging (MR imaging/CT) of infants 1 year of age or younger Patients with congenital Zika syndrome were divided into those with microcephaly at birth, postnatal microcephaly, and without microcephaly Neuroimaging was compared among groups RESULTS: Among 77 infants, 246% had congenital Zika syndrome (117% microcephaly at birth, 91% postnatal microcephaly, 39% without microcephaly) The postnatal microcephaly and without microcephaly groups showed statistically similar imaging findings The microcephaly at birth compared with the group without microcephaly showed statistically significant differences for the following: reduced brain volume, calcifications outside the cortico-subcortical junctions, corpus callosum abnormalities, moderate-to-severe ventriculomegaly, an enlarged extra-axial space, an enlarged cisterna magna (all absent in those without microcephaly), and polymicrogyria (the only malformation present without microcephaly) There was a trend toward pachygyria (absent in groups without microcephaly) The group with microcephaly at birth compared with the group with postnatal microcephaly showed significant differences for simplified gyral pattern, calcifications outside the cortico-subcortical junctions, corpus callosum abnormalities, moderate-to-severe ventriculomegaly, and an enlarged extra-axial space CONCLUSIONS: In microcephaly at birth, except for polymicrogyria, all patients showed abnormalities described in the literature In postnatal microcephaly, the only abnormalities not seen were a simplified gyral pattern and calcifications outside the cortico-subcortical junction Infants with normocephaly presented with asymmetric frontal polymicrogyria, calcifications in the cortico-subcortical junction, mild ventriculomegaly, and delayed myelination

116 citations

Journal ArticleDOI
TL;DR: In this article, the authors reviewed the most recently published works on plasmonic nanofluids that exclusively present its preparation methods, thermophysical properties, and applications in solar collectors.

115 citations

Proceedings ArticleDOI
14 Mar 2016
TL;DR: This paper mined popular software repositories hosted on GitHub to investigate how common casual contributions are, and what are their characteristics, and found that both casual contributors and project maintainers believe that casual contributions have more benefits than drawbacks.
Abstract: Source code hosting websites (code forges) have recently changed to more social environments, and the contribution process evolved to the so-called pull-based development model. Due to the facilities brought by this evolution, Open Source Software (OSS) projects are now facing a high exposure, leading to an increasing number of contributors. However, not all these contributors want to have a long-term engagement with the project. In fact, popular projects are known to have a restricted set of core developers who drive the project, but now these projects count on a broad set of "not that involved" developers, which are responsible for a long tail of small contributions. In this paper, we shed the light on this important but overlooked set of developers: the casual contributors (also known as drive-by commits). First, we mined popular software repositories hosted on GitHub to investigate how common casual contributions are, and what are their characteristics. Second, we conducted two surveys with (1) the casual contributors and (2) the project maintainers aimed at understanding what motivates casual contributors and how they are perceived. Our results showed that although casual contributors are rather common (48.98% of the whole population of contributors in the projects analyzed), they are responsible for only 1.73% of the total number of commits. We also found that casual contributions are far from being trivial: even though a significant proportion of them are fixing typos and grammar issues (28.64%), we found several of them that have fixed bugs (30.20%), added new features (18.75%), and refactored code (8.85%). Still, we found that both casual contributors and project maintainers believe that casual contributions have more benefits than drawbacks. As a casual contributor said: "every bit helps".

113 citations


Network Information
Related Institutions (5)
University of São Paulo
272.3K papers, 5.1M citations

91% related

Universidade Federal de Minas Gerais
75.6K papers, 1.2M citations

90% related

Federal University of São Paulo
49.3K papers, 935.5K citations

90% related

Federal University of Rio de Janeiro
89.1K papers, 1.5M citations

90% related

Universidade Federal de Santa Catarina
55.4K papers, 714.4K citations

90% related

Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
202314
202261
2021840
2020823
2019571
2018547