6,589 research outputs found
Previdências dos trabalhadores dos setores público e privado e desigualdade no Brasil
O estudo examina um conjunto particular de determinantes institucionais da desigualdade, as políticas previdenciárias. Para isso, avalia a hipótese de que a diferenciação de regras quanto ao limite máximo para o valor dos benefícios nos Regimes Próprios de Previdência dos trabalhadores do setor público e o Regime Geral do setor privado responde por uma parte significativa da regressividade da previdência como um todo e contribui desproporcionalmente para a desigualdade no Brasil. A metodologia usada decompõe os fatores do coeficiente de Gini da distribuição de rendimentos familiares per capita observada na POF 2008/09. Conclui que o Estado reproduz desigualdades preexistentes por meio de direitos previdenciários diferenciados para trabalhadores dos setores público e privado. A diferenciação de regras faz com que a previdência de valores mais altos, recebida por menos de 1% da população, contribua com 4% da desigualdade total.The study examines a particular set of institutional determinants of inequality, the public pensions. It tests the hypothesis that different rules regarding a maximum limit for the value of benefits in the pension subsystem of public and private sector workers make the system as a whole regressive and contribute disproportionately to inequality in Brazil. Using a factor decomposition of the Gini coefficient of the distribution of family per capita income, as measured by POF 2008/09 it concludes that the State reproduces pre-existing inequalities when it differentiates rules for public and private sector workers. Due to this differentiation of rules, the higher value of pensions of less than 1% of the population contributes to 4% of total inequality
Currents issues in cardiorespiratory care of patients with post-polio syndrome
Post-polio syndrome (PPS) is a condition that affects polio survivors years after recovery from an initial acute attack of the poliomyelitis virus. Most often, polio survivors experience a gradual new weakening in muscles that were previously affected by the polio infection. The actual incidence of cardiovascular diseases (CVDs) in individuals suffering from PPS is not known. However, there is a reason to suspect that individuals with PPS might be at increased risk. Method: A search for papers was made in the databases Bireme, Scielo and Pubmed with the following keywords: post polio syndrome, cardiorespiratory and rehabilitation in English, French and Spanish languages. Although we targeted only seek current studies on the topic in question, only the relevant (double-blind, randomized-controlled and consensus articles) were considered. Results and Discussion: Certain features of PPS such as generalized fatigue, generalized and specific muscle weakness, joint and/or muscle pain may result in physical inactivity deconditioning obesity and dyslipidemia. Respiratory difficulties are common and may result in hypoxemia. Conclusion: Only when evaluated and treated promptly, somE patients can obtain the full benefits of the use of respiratory muscles aids as far as quality of life is concerned.Ctr Univ Augusto Motta, Programa Posgrad Ciencias Reabilitacao, Rio De Janeiro, RJ, BrazilUniv Severino Sombra, Fac Med, Vassouras, RJ, BrazilUniv Fed Rio de Janeiro, Inst Psiquiatria, Lab Mapeamento Cerebral & EEG, BR-22290140 Rio De Janeiro, RJ, BrazilUniv Fed Fluminense, Hosp Univ Antonio Pedro, Niteroi, RJ, BrazilInst Fed Educ Ciencia & Tecnol Rio de Janeiro, Curso Fisioterapia, Rio De Janeiro, RJ, BrazilUniv Fed Piaui, Parnaiba, PI, BrazilUniv Fed Sao Paulo, Dept Neurol, Sao Paulo, SP, BrazilUniv Fed Sao Paulo, Dept Neurol, Sao Paulo, SP, BrazilWeb of Scienc
Usability and digital inclusion: standards and guidelines
This article aims at discussing e-government website usability in relation to concerns about
digital inclusion. E-government web design should consider all aspects of usability, including
those that make it more accessible to all. Traditional concerns of social exclusion are being
superseded by fears that lack of digital competence and information literacy may result in dangerous
digital exclusion. Usability is considered as a way to address this exclusion and should
therefore incorporate inclusion and accessibility guidelines. This article makes an explicit link
between usability guidelines and digital inclusion and reports on a survey of local government
web presence in Portugal
Mudanças de renda no Brasil: fatores espaciais, setoriais, educacionais e de status social
First record of the bat Mimon crenulatum (E. Geoffroy, 1801) (Mammalia: Chiroptera) in the state of Rio de Janeiro, Southeastern Brazil
Uso da poda seca e da poda verde para obtenção de duas safras por ciclo vegetativo em três cultivares de videira
Measurement of the t t-bar production cross section in the dilepton channel in pp collisions at sqrt(s) = 7 TeV
The t t-bar production cross section (sigma[t t-bar]) is measured in
proton-proton collisions at sqrt(s) = 7 TeV in data collected by the CMS
experiment, corresponding to an integrated luminosity of 2.3 inverse
femtobarns. The measurement is performed in events with two leptons (electrons
or muons) in the final state, at least two jets identified as jets originating
from b quarks, and the presence of an imbalance in transverse momentum. The
measured value of sigma[t t-bar] for a top-quark mass of 172.5 GeV is 161.9 +/-
2.5 (stat.) +5.1/-5.0 (syst.) +/- 3.6(lumi.) pb, consistent with the prediction
of the standard model.Comment: Replaced with published version. Included journal reference and DO
Combined search for the quarks of a sequential fourth generation
Results are presented from a search for a fourth generation of quarks
produced singly or in pairs in a data set corresponding to an integrated
luminosity of 5 inverse femtobarns recorded by the CMS experiment at the LHC in
2011. A novel strategy has been developed for a combined search for quarks of
the up and down type in decay channels with at least one isolated muon or
electron. Limits on the mass of the fourth-generation quarks and the relevant
Cabibbo-Kobayashi-Maskawa matrix elements are derived in the context of a
simple extension of the standard model with a sequential fourth generation of
fermions. The existence of mass-degenerate fourth-generation quarks with masses
below 685 GeV is excluded at 95% confidence level for minimal off-diagonal
mixing between the third- and the fourth-generation quarks. With a mass
difference of 25 GeV between the quark masses, the obtained limit on the masses
of the fourth-generation quarks shifts by about +/- 20 GeV. These results
significantly reduce the allowed parameter space for a fourth generation of
fermions.Comment: Replaced with published version. Added journal reference and DO
Search for supersymmetry in events with b-quark jets and missing transverse energy in pp collisions at 7 TeV
Results are presented from a search for physics beyond the standard model
based on events with large missing transverse energy, at least three jets, and
at least one, two, or three b-quark jets. The study is performed using a sample
of proton-proton collision data collected at sqrt(s) = 7 TeV with the CMS
detector at the LHC in 2011. The integrated luminosity of the sample is 4.98
inverse femtobarns. The observed number of events is found to be consistent
with the standard model expectation, which is evaluated using control samples
in the data. The results are used to constrain cross sections for the
production of supersymmetric particles decaying to b-quark-enriched final
states in the context of simplified model spectra.Comment: Submitted to Physical Review
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