INTRODUCTION Cardiopulmonary exercise testing (CPET), the gold standard of cardiopulmonary evaluation, is used to determine VO2 levels at different aerobic exercise training intensities; however, it may not be feasible to conduct CPET in all clinical settings. AIMS To compare the heart rate reserve (HRR) and percent of 220-age methods for prescribing cycle ergometry exercise intensity using h...

The mineral content of bone can be determined by measuring the absorption by bone of a monochromatic, low-energy photon beam which originates in a radioactive source (iodine-125 at 27.3 kev or americium 241 at 59.6 kev). The intensity of the beam transmitted by the bone is measured by counting with a scintillation detector. Since the photon source and detector are well collimated, errors result...

Positioning of users in cellular systems is an area attracting large interest and the number of applications for the location information is growing rapidly. Large-scale deployment of such applications will require methods for positioning that are simple enough to be used in mobile phones. In this paper, we evaluate the location accuracy for some different algorithms in a microcellular environm...

Learning more about intimate partner violence (IPV), perpetrators could aid the development of more effective treatments. The prevalence of adulthood animal abuse (AAA) perpetration and its association with IPV perpetration, antisociality, and alcohol use in 307 men arrested for domestic violence were examined. Forty-one percent (n = 125) of the men committed at least one act of animal abuse si...

Geometric mean blood lead was 120 μg/L (95% CI: 115 -125), with a higher concentration in men than in women (127 vs 114 μg/L, p=0.01). Sixty-three percent of children aged less than 6 years old presented blood lead levels above the 100 μg threshold. In the adult population, occupations with a potential risk of exposure to gasoline (car mechanics or garage owners, taxi drivers, conveyors and gas...

Staphylococcus aureus was found in 96% of the rectal swabs from 133 sheep and in 80% of the swabs from 125 goats. Seventy-seven percent of the isolates from both hosts exhibited the fibrinolytic and growth characteristics of human biotype A on human plasma and crystal violet agar, respectively, but 99% of these isolates resembled S. aureus of animal origin in their other properties. Only 21% of...

INTRODUCTION This paper aimed to study the ability of the "ovarian crescent sign" to predict the nature of adnexal masses and to validate the "ovarian crescent" as an ultrasonographical marker for malignancy. METHODS A prospective study was carried out in 60 consenting women with an undiagnosed adnexal mass, attending the gynaecology service and requiring operative intervention. An ovarian cr...

BACKGROUND The role of medical treatment for patients with bleeding peptic ulcers is uncertain. METHODS We conducted a double-blind, placebo-controlled trial in 220 patients with duodenal, gastric, or stomal ulcers and signs of recent bleeding, as confirmed by endoscopy. In 26 patients the ulcers showed arterial spurting, in 34 there was active oozing, in 35 there were nonbleeding, visible ve...

Sao Paulo Med J. 2007;125(4):226-30. O R IG IN A L A R T IC L E Rozany Mucha Dufl oth

O R IG IN A L A R T IC L E Alexandre Rodrigues Guerzoni Érika Cristina Pavarino-Bertelli Moacir Fernandes de Godoy