Institution
Rio de Janeiro State University
Education•Rio de Janeiro, Brazil•
About: Rio de Janeiro State University is a education organization based out in Rio de Janeiro, Brazil. It is known for research contribution in the topics: Population & Large Hadron Collider. The organization has 16631 authors who have published 30919 publications receiving 465753 citations. The organization is also known as: UERJ & Rio de Janeiro State University.
Topics: Population, Large Hadron Collider, Standard Model, Higgs boson, Lepton
Papers published on a yearly basis
Papers
More filters
••
TL;DR: Treatment for APS pregnant patients should be low molecular weight heparin (LMWH) and low dose aspirin (LDA) and the dosage, and frequency of LMWH depends on different situations, including the body weight and past history.
Abstract: Antiphospholipid Syndrome (APS) has been widely recognized as a risk factor for the recurrence of both thrombosis and pregnancy losses; however the optimal treatment of patients is debatable. The aim of this paper was to establish a consensus among experts on the treatment of APS in pregnancy. A questionnaire that described possible different clinical situations was sent to the International Advisory Board of the 10th International Congress on Antiphospholipid Antibodies. Sixteen experts from different medical branches and different geographic areas sent their replies. The consensus was that treatment for APS pregnant patients should be low molecular weight heparin (LMWH) and low dose aspirin (LDA). The dosage, and frequency of LMWH depends on different situations, including the body weight and past history. Patients with previous thromboses usually receive two injections per day. Warfarin can also be used from 14 to 34 weeks, for patients with previous stroke or severe arterial thromboses. The use of intravenous immunoglobulin (IVIG) seems to be restricted to patients with pregnancy losses despite conventional treatment. The experts usually advised barrier methods of contraception, intrauterine device (if the patient is not taking corticosteroids) or progestins. Oral contraception with oestrogens was usually avoided.
123 citations
••
TL;DR: The vascular relationships to the ureteropelvic junction in 146, 3-dimensional endocasts of the kidney collecting system together with the intrarenal arteries and veins are analyzed to help endourologists perform endopyelotomy safely and efficiently with a reduced risk of vascular complications.
123 citations
••
TL;DR: In this article, the anomalous like-sign dimuon charge asymmetry for semileptonic b-hadron decays in 9.0 fb(-1) of p (p) over bar collisions recorded with the D0 detector at a center-of-mass energy of root s = 1.96 TeV at the Fermilab Tevatron collider.
Abstract: We present an updated measurement of the anomalous like-sign dimuon charge asymmetry A(sl)(b) for semileptonic b-hadron decays in 9.0 fb(-1) of p (p) over bar collisions recorded with the D0 detector at a center-of-mass energy of root s = 1.96 TeV at the Fermilab Tevatron collider. We obtain A(sl)(b) = (-0.787 +/- 0.172(stat) +/- 0.093(syst)%. This result differs by 3.9 standard deviations from the prediction of the standard model and provides evidence for anomalously large CP violation in semileptonic neutral B decay. The dependence of the asymmetry on the muon impact parameter is consistent with the hypothesis that it originates from semileptonic b-hadron decays.
123 citations
••
TL;DR: The study population was stratified into 32 geographical strata and a sample of 1,251 schools was selected with probability proportional to size, and the design sampling weights were calculated by the product of the reciprocals of the inclusion probabilities in each sampling stage.
Abstract: The Study of Cardiovascular Risk in Adolescents (ERICA) aims to estimate the prevalence of cardiovascular risk factors and metabolic syndrome in adolescents (12-17 years) enrolled in public and private schools of the 273 municipalities with over 100,000 inhabitants in Brazil. The study population was stratified into 32 geographical strata (27 capitals and five sets with other municipalities in each macro-region of the country) and a sample of 1,251 schools was selected with probability proportional to size. In each school three combinations of shift (morning and afternoon) and grade were selected, and within each of these combinations, one class was selected. All eligible students in the selected classes were included in the study. The design sampling weights were calculated by the product of the reciprocals of the inclusion probabilities in each sampling stage, and were later calibrated considering the projections of the numbers of adolescents enrolled in schools located in the geographical strata by sex and age.
122 citations
••
TL;DR: In this paper, it was shown that Zwanziger's action with the inclusion of the local composite operator is renormalizable to all orders of perturbation theory, obeying the renormalization group equations.
Abstract: The local composite operator ${A}_{\ensuremath{\mu}}^{2}$ is added to the Zwanziger action, which implements the restriction to the Gribov region $\ensuremath{\Omega}$ in Euclidean Yang-Mills theories in the Landau gauge. We prove that Zwanziger's action with the inclusion of the operator ${A}_{\ensuremath{\mu}}^{2}$ is renormalizable to all orders of perturbation theory, obeying the renormalization group equations. This allows us to study the dimension two gluon condensate $⟨{A}_{\ensuremath{\mu}}^{2}⟩$ by the local composite operator formalism when the restriction to the Gribov region $\ensuremath{\Omega}$ is taken into account. The resulting effective action is evaluated at one-loop order in the $\overline{\mathrm{MS}}$ scheme. We obtain explicit values for the Gribov parameter and for the mass parameter due to $⟨{A}_{\ensuremath{\mu}}^{2}⟩$, but the expansion parameter turns out to be rather large. Furthermore, an optimization of the perturbative expansion in order to reduce the dependence on the renormalization scheme is performed. The properties of the vacuum energy, with or without the inclusion of the condensate $⟨{A}_{\ensuremath{\mu}}^{2}⟩$, are investigated. In particular, it is shown that in the original Gribov-Zwanziger formulation, i.e. without the inclusion of the operator ${A}_{\ensuremath{\mu}}^{2}$, the resulting vacuum energy is always positive at one-loop order, independently from the choice of the renormalization scheme and scale. In the presence of $⟨{A}_{\ensuremath{\mu}}^{2}⟩$, we are unable to come to a definite conclusion at the order considered. In the $\overline{\mathrm{MS}}$ scheme, we still find a positive vacuum energy, again with a relatively large expansion parameter, but there are renormalization schemes in which the vacuum energy is negative, albeit the dependence on the scheme itself appears to be strong. Concerning the behavior of the gluon and ghost propagators, we recover the well-known consequences of the restriction to the Gribov region, and this in the presence of $⟨{A}_{\ensuremath{\mu}}^{2}⟩$, i.e. an infrared suppression of the gluon propagator and an enhancement of the ghost propagator. Such a behavior is in qualitative agreement with the results obtained from the studies of the Schwinger-Dyson equations and from lattice simulations.
122 citations
Authors
Showing all 16818 results
Name | H-index | Papers | Citations |
---|---|---|---|
Hyun-Chul Kim | 176 | 4076 | 183227 |
Maria Elena Pol | 139 | 1414 | 99240 |
Wagner Carvalho | 135 | 1395 | 94184 |
Alberto Santoro | 135 | 1576 | 100629 |
Andre Sznajder | 134 | 1464 | 98242 |
Luiz Mundim | 133 | 1413 | 89792 |
Helio Nogima | 132 | 1274 | 84368 |
D. De Jesus Damiao | 128 | 1162 | 82707 |
Magdalena Malek | 128 | 598 | 67486 |
Sudha Ahuja | 127 | 1016 | 75739 |
Helena Malbouisson | 125 | 1151 | 82692 |
Jose Chinellato | 123 | 1116 | 64267 |
Flavia De Almeida Dias | 120 | 590 | 59083 |
Gilvan Alves | 119 | 829 | 69382 |
C. De Oliveira Martins | 119 | 880 | 66744 |