Sao Paulo Med J. 2007;125(6):322-8. O R IG IN A L A R T IC L E Lais Helena Camacho Navarro José Reinaldo Cerqueira Braz

Sao Paulo Med J. 2007;125(5):275-80. O R IG IN A L A R T IC L E Rodrigo Augusto Fernandes Estevão Afonso Celso Pinto Nazário Edmund Chada Baracat Effect of oral contraceptive with and without associated estriol on ultrasound measurements of breast fi broadenoma: randomized clinical trial Mastology Sector, Department of Gynecology, Universidade Federal de São Paulo — Escola Paulista de Medicina ...

Sao Paulo Med J. 2007;125(5):281-5. O R IG IN A L A R T IC L E Maria Regina Cavariani Silvares Kunie Iabuki Rabello Coelho

The development of a rotary microactuator supported on encapsulated microball bearings and driven by electro-pneumatic actuation is reported. The encapsulated bearing provides full support to an encased rotor, while an electro-pneumatic thrust balance is used to minimize rotor normal load. By minimizing normal load, bearing friction is reduced leading to increased speed and performance. Experim...

Influence of formation of surface nano/ultrafine structure using deep rolling on plasma nitriding and tribological properties of the AISI 316L stainless steel was investigated. Initially, the deep rolling process was carried out on the bar-shaped specimens at 15 cycles with 0.2 mm/s longitudinal rate and 22.4 rpm bar rotation. Then, plasma nitriding treatment was applied on the as-received...

The leaching of chalcopyrite under different redox potentials was studied with a potential controlling device based on microcontroller technology. test carried out in 500 mL flask 4 g pure and 200 sulfuric acid. additional total Fe concentration 0.1 mol/kg, the initial pH 0.7. Chalcopyrite tests 400 mV 600 (vs. Ag/AgCl, same below) controlled 350 mV, 450 were at temperature 60 °C stirring speed...

OBJECTIVE The objective of this study was to compare the effects of chemopreventive agents on natural fluorescence emission of ovarian cells in a cell culture and in a primate model as a feasibility trial to monitor drug activity. METHODS Fluorescence emission spectra were collected from normal (NOE) and immortalized ovarian surface epithelial cells at 290, 360, and 450 nm excitation. Redox p...

objective(s): carotenoids which are naturally synthesized by fungi such as yeasts can act as an antioxidant which is closely related to their ability to decrease the risk of a variety of degenerative diseases. in recent years, the increase of demand for carotenoids obtained from natural sources has promoted major efforts to improve carotenoid production from biological sources such as pigmented...