Institution
Universidade Federal de Santa Catarina
Education•Florianópolis, Brazil•
About: Universidade Federal de Santa Catarina is a education organization based out in Florianópolis, Brazil. It is known for research contribution in the topics: Population & Context (language use). The organization has 28408 authors who have published 55433 publications receiving 714461 citations.
Papers published on a yearly basis
Papers
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TL;DR: Dementia risk is associated with loneliness and having fewer close relationships in later life, and efforts to enhance older peoples’ relationship quality may be relevant to dementia risk.
Abstract: Objectives:
Social relationships are important for the maintenance of cognitive function at older ages, with both objective features of social networks and perceived social connections (loneliness) being relevant. There is limited evidence about how different aspects of social experience predict diagnosed dementia.
Methods:
The sample comprised 6,677 dementia-free individuals at baseline (2004) from the English Longitudinal Study of Ageing. Baseline information on loneliness, number of close relationships, marital status, and social isolation (contact with family and friends and participation in organizations) was analyzed in relation to incident dementia over an average
6.25 years using Cox regression, controlling for potential confounding factors.
Results:
Two hundred twenty participants developed dementia during follow-up. In multivariable analyses, dementia risk was positively related to greater loneliness (hazard ratio 1.40, 95% confidence interval 1.09–1.80, p = .008), and inversely associated with number of close relationships (p < .001) and being married (p
= .018). Sensitivity analyses testing for reverse causality and different criteria for iagnosing dementia confirmed the robustness of these findings. There was no association
with social isolation.
Discussion:
Dementia risk is associated with loneliness and having fewer close relationships in later life. The underlying mechanisms remain to be elucidated, but efforts to enhance older peoples’ relationship quality may be relevant to dementia risk.
143 citations
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01 Nov 2012TL;DR: In this paper, the effect of two different plasticizers, glycerol and sorbitol, and different concentrations of starch and gelatin on the barrier (water vapor permeability) and physical properties (opacity and thickness) of the obtained bioplastics samples were investigated.
Abstract: The interest in the development of edible and biodegradable films has increased because it is every day more evident that non-degradable materials are doing much damage to the environment. In this research, bioplastics were based on blends of manioc starch (native and modified) and gelatin in different proportions, added of glycerol or sorbitol, which were used as plasticizers. The objective was to study the effect of two different plasticizers, glycerol and sorbitol, and different concentrations of starch and gelatin on the barrier (water vapor permeability – WVP), mechanical (tensile strength and elongation at break), physicochemical (solubility in water and in acid) and physical properties (opacity and thickness) of the obtained bioplastics samples. As a result, all of them showed transparency and resistance to tensile strength, as well as increasing in thickness values and in the WVP, as the gelatin content increased in the formulations. Finally, all results for tensile strength and elongation at break obtained for those samples plasticized with sorbitol were better than those plasticized with glycerol.
143 citations
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Federal University of Rio de Janeiro1, Rio de Janeiro State University2, Oswaldo Cruz Foundation3, Brazilian Institute of Geography and Statistics4, Sao Paulo State University5, Federal University of Pará6, Universidade Federal de Goiás7, State University of Feira de Santana8, Universidade Federal do Rio Grande do Sul9, Federal University of Amazonas10, Universidade Federal de Minas Gerais11, Universidade Federal do Amapá12, Universidade Federal do Espírito Santo13, University of São Paulo14, Universidade Federal de Santa Catarina15, Federal University of Rio Grande do Norte16, Universidade Federal de Mato Grosso17, State University of Campinas18, Federal University of Bahia19, Pontifícia Universidade Católica do Paraná20, Federal University of Pernambuco21, University of Brasília22, Universidade Federal de Rondônia23, Federal University of Piauí24, Universidade Federal do Acre25, Federal University of Maranhão26, Federal University of Ceará27, Universidade Federal de Sergipe28, Federal University of Paraíba29, Federal University of Alagoas30, Federal University of Roraima31
TL;DR: The study findings will be instrumental to the development of public policies aiming at the prevention of obesity, atherosclerotic diseases and diabetes in an adolescent population.
Abstract: The Study of Cardiovascular Risk in Adolescents (Portuguese acronym, “ERICA”) is a multicenter, school-based country-wide cross-sectional study funded by the Brazilian Ministry of Health, which aims at estimating the prevalence of cardiovascular risk factors, including those included in the definition of the metabolic syndrome, in a random sample of adolescents aged 12 to 17 years in Brazilian cities with more than 100,000 inhabitants. Approximately 85,000 students were assessed in public and private schools. Brazil is a continental country with a heterogeneous population of 190 million living in its five main geographic regions (North, Northeast, Midwest, South and Southeast). ERICA is a pioneering study that will assess the prevalence rates of cardiovascular risk factors in Brazilian adolescents using a sample with national and regional representativeness. This paper describes the rationale, design and procedures of ERICA.
143 citations
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TL;DR: For a shape-regular family of meshes consisting of parallelepipeds, the symmetric formulation of the interior penalty discontinuous Galerkin finite element method for the numerical solution of the biharmonic equation with Dirichlet boundary conditions in a bounded polyhedral domain is considered.
Abstract: We consider the symmetric formulation of the interior penalty discontinuous Galerkin finite element method for the numerical solution of the biharmonic equation with Dirichlet boundary conditions in a bounded polyhedral domain in $$\mathbb{R}^d, d \geqslant 2$$ . For a shape-regular family of meshes consisting of parallelepipeds, we derive hp-version a priori bounds on the global error measured in the L2 norm and in broken Sobolev norms. Using these, we obtain hp-version bounds on the error in linear functionals of the solution. The bounds are optimal with respect to the mesh size h and suboptimal with respect to the degree of the piecewise polynomial approximation p. The theoretical results are confirmed by numerical experiments, and some practical applications in Poisson---Kirchhoff thin plate theory are presented.
143 citations
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TL;DR: In this paper, a supercritical fluid extraction (SFE) method was used to obtain oranges pomace extract using CO 2 and CO 2 with co-solvent in order to evaluate the high pressure method in terms of process yield, extract composition and biological activity.
Abstract: The objective of this study was to obtain orange ( Citrus sinensis L. Osbeck) pomace extract using supercritical fluid extraction (SFE) with CO 2 and with CO 2 and co-solvent. In order to evaluate the high pressure method in terms of process yield, extract composition and biological activity, low pressure methods were also applied to obtain orange extracts, such as ultrasound (UE) and soxhlet (SOX), with different organic solvents, and hydrodistillation (HD). The SFE conditions were temperatures of 313.15 K and 323.15 K and pressures from 100 to 300 bar. The SFE kinetics and mathematical modeling of the overall extraction curves (OEC) were also investigated. The antioxidant potential of the extracts was evaluated by the DPPH method, by the Folin–Ciocalteau method and by the β-carotene/linoleic acid bleaching method. The antimicrobial activity of the extracts was also studied. The main compounds identified were l -limonene, palmitic and oleic acids, n-butyl benzenesulfonamide and β-sitosterol.
143 citations
Authors
Showing all 28762 results
Name | H-index | Papers | Citations |
---|---|---|---|
Richard Vidal | 113 | 685 | 61464 |
Carlos A. Peres | 101 | 434 | 33582 |
Pedro J. J. Alvarez | 89 | 378 | 34837 |
Hans J. Herrmann | 87 | 999 | 30760 |
Elson Longo | 86 | 1454 | 40494 |
Anthony H. Dickenson | 86 | 353 | 24982 |
Kannan Govindan | 83 | 309 | 23633 |
João B. Calixto | 81 | 460 | 23029 |
Walter Herzog | 79 | 672 | 23816 |
Alírio E. Rodrigues | 79 | 832 | 28848 |
Domenico Girelli | 72 | 349 | 23968 |
Larry Davidson | 69 | 459 | 20177 |
Diogo O. Souza | 68 | 534 | 17793 |
David Kirk | 67 | 303 | 14177 |
Felipe Dal-Pizzol | 65 | 380 | 13171 |