Rio de Janeiro State University

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.

Association between periodontitis and low birth weight: a case-control study.

Abstract: Objective: To verify a possible association between periodontitis and low-birth-weight babies. Material and Methods: One hundred and fifty-one mothers were examined. The case group included 76 mothers (mean age 25.6 years), whose babies at birth weighed 2500 g and with a GA > 37 weeks, were the control group. Data from the mothers and the babies were collected from the Hospital registration records and during an interview with the mother. The periodontal examination included measurements of probing pocket depth (PPD) and clinical attachment loss (CAL) in six sites from all existing teeth, except for third molars. Mothers with periodontitis had at least four sites with PPD≥4 and CAL ≥ 3 mm, while healthy mothers had PPD ≥ 3 mm and CAL ≥ I mm. Results: The median number of sites with PPD ≥ 4 and CAL ≥ 3 mm was eight in the case group, and four in the control group. The significant associations with low birth weight (LBW) babies were periodontitis (odds ratio (OR) = 3.48, 95% confidence interval (CI): 1.17; 10.36), arterial hypertension (OR = 9.65, 95% CI: 2.22; 41.91), haemorrhage during pregnancy (OR = 10.88, 95% CI: 1.95; 60.53), number of prenatal examinations (OR = 0.10, 95% CI: 0.02; 0.43) and genitourinary infection (OR = 3.21, 95% CI: 1.25; 8.20). Conclusion: Periodontitis was considered a risk indicator for LBW in this sample, similar to other risk factors already recognized by obstetricians.

J/ψ and ψ (2S) production in pp collisions at √s = 7 TeV

Abstract: A measurement of the J/psi and psi(2S) production cross sections in pp collisions at sqrt(s)=7 TeV with the CMS experiment at the LHC is presented. The data sample corresponds to an integrated luminosity of 37 inverse picobarns. Using a fit to the invariant mass and decay length distributions, production cross sections have been measured separately for prompt and non-prompt charmonium states, as a function of the meson transverse momentum in several rapidity ranges. In addition, cross sections restricted to the acceptance of the CMS detector are given, which are not affected by the polarization of the charmonium states. The ratio of the differential production cross sections of the two states, where systematic uncertainties largely cancel, is also determined. The branching fraction of the inclusive B to psi(2S) X decay is extracted from the ratio of the non-prompt cross sections to be: BR(B to psi(2S) X) = (3.08 +/- 0.12(stat.+syst.) +/- 0.13(theor.) +/- 0.42(BR[PDG])) 10^-3