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.

Qualidade de vida, apoio social e depressão em idosos: relação com habilidades sociais

Abstract: Current studies suggest that the capacity to socially interact is basic for the elderly in order to reach out and keep social support, and to guarantee a better quality of life. The present study aimed to investigate the social abilities, social support, quality of life and depression of the elderly from Universidade Aberta da Terceira Idade da Universidade do Estado do Rio de Janeiro (UnATI/UERJ), in the contexts of family and asylums. For this research the following tools were used: Social Skills Inventory, Social Support Measurement, WHOQOL-BRIEF and Geriatric Depression Scale-15. Analysis of the data obtained from the instruments above, show that the elderly that live in asylums present a reduced repertoire of social abilities, a diminished social support network and an impaired quality of life. This research offers subsidies for the implantation of Social Skills Training Programs directed for the elderly, enhancing their ability to get social support and, therefore, a better quality of life.

Limitations of extracorporeal shockwave lithotripsy for lower caliceal stones: anatomic insight.

Abstract: In addition to gravity-dependent position, we suppose that other particular anatomic features may be important in the retention of stone debris in lower calices after extracorporeal Shockwave lithotripsy (SWL). We analyzed the inferior-pole collecting system anatomy in 146 three-dimensional polyester resin corrosion endocasts of the pelviocaliceal system. In 74% of the cases, there was an angle of greater than 90° formed between the lower infundibulum and the renal pelvis, and in 26%, the angle was 90° or less. In 60%, there was a lower infundibulum 4 mm or larger in diameter. The inferior pole was drained by multiple calices disposed in two rows in 57% of the cases and by one midline caliceal infundibulum in 43%. We believe that the physician must appreciate these anatomic features when considering SWL to treat calculi located in lower calices.

Studies of azimuthal dihadron correlations in ultra-central PbPb collisions at √sNN = 2.76 TeV

Abstract: Azimuthal dihadron correlations of charged particles have been measured in PbPb collisions at √sNN = 2.76 TeV by the CMS collaboration, using data from the 2011 LHC heavy-ion run. The data set includes a sample of ultra-central (0-0.2% centrality) PbPb events collected using a trigger based on total transverse energy in the hadron forward calorimeters and the total multiplicity of pixel clusters in the silicon pixel tracker. A total of about 1.8 million ultra-central events were recorded, corresponding to an integrated luminosity of 120 μb^( − 1). The observed correlations in ultra-central PbPb events are expected to be particularly sensitive to initial-state fluctuations. The single-particle anisotropy Fourier harmonics, from v_2 to v_6, are extracted as a function of particle transverse momentum. At higher transverse momentum, the v_2 harmonic becomes significantly smaller than the higher-order v_n (n ≥ 3). The p _T-averaged v_2 and v_3 are found to be equal within 2%, while higher-order v_n decrease as n increases. The breakdown of factorization of dihadron correlations into single-particle azimuthal anisotropies is observed. This effect is found to be most prominent in the ultra-central PbPb collisions, where the initial-state fluctuations play a dominant role. A comparison of the factorization data to hydrodynamic predictions with event-by-event fluctuating initial conditions is also presented.