We report the discovery of a new class of low frequency quasi–periodic variations of the X–ray flux in the X-ray bursters 4U1608-52 and 4U1636-536. We report also the occasional detection of similar QPO in Aql X-1. The QPOs, associated with the flux variations at the level of percents, are observed at the frequency of 7–9 ·10−3 Hz. While usually relative amplitude of flux variations is increasi...

OBJECTIVES To determine the relative usefulness of different criteria for the separation of pleural transudates from exudates. DESIGN Prospective evaluation of patients referred for thoracentesis. SETTING Community teaching hospital. PATIENTS Three hundred fifty-one consecutive patients with pleural effusions referred for thoracentesis. Fifty-four of these patients were excluded from the ...

The aim of this study was to describe the incidence distribution of colorectal cancer in Fortaleza, Ceará State, and Porto Alegre, Rio Grande do Sul State, Brazil, and the time trend in the disease from 1990 to 1999. Mean annual age-adjusted incidence rates and estimated annual percent change were calculated by gender, using population-based cancer registries. EAPC showed an increase in the rat...

The shelf-life of conventional surimi and isolated proteins that modified by acidic pH (2.5) and by using alkali pH (11) from silver carp (Hypophthalmichthys molitrix) was studied during months of storage at -18±2 °C. For conventional surimi, three washing steps were used. In the third stage of washing, 0.2% NaCl was used to withdraw more water. The result showed that isolated protein by alkali...

to study the possible use of phytase and yeast (saccharomyces cervisiae) in corn-soy bean meal base diet with different levels of available phosphorous in arbor acers broiler chicks, an experiment was conducted with 264 day old chicks of an average weight of 44.6 grams each. a completely randomized design of 6 treatments and 4 replications (11 chicks per replicate) for periods of starter, growe...

The emulsion stability of different pumpkin O/W emulsions was investigated. Preparation were performed with oil phase between 10 and 40 percent, water soybean protein isolate. To determine properties methods used. Density, viscosity, centrifugation tests spectroscopic measurements for their investigations. stored two weeks to kinetic. Influence the presented connected them.