Diameter growth and age of jaboticaba trees (Plinia peruviana (Poir.) Govaerts) native from Southwest of Paraná, Brazil, based on growth-rings.

The jaboticaba tree (Plinia peruviana (Poir.) Govaerts) is a native Brazilian species, and its fruits are very popular in Brazil. The purpose of this study was to model the diameter growth, and determine the age of jaboticaba trees in four natural populations in Southwest of Paraná State, Brazil.

Depression among Youth Living with HIV/AIDS.

Depression and human immunodeficiency virus disease are common co-occurring conditions among youth living with human immunodeficiency virus/AIDS. Depression serves as a risk factor for contracting the disease and for nonadherence to medications and adherence to safe sex practices. Although new infections are decreasing nationally, subpopulations of youths continue to have the highest rates of new infections, specifically ethnic and sexual minority youths.

[Sleep characteristics in patients with anxiety crises].

All night sleep EEG recordings were compared in patients with panic attacks, major depression, and normal controls. Total time asleep, total time awake and sleep efficiency were significantly different in normal controls as compared with the other groups. In contrast, REM latency and REM density were significantly different in depressed patients as compared with the other groups.