Low-grade metamorphic hydrous minerals and carbonates occur in various settings on Mars Martian meteorites. We present constraints the stability of prehnite, zeolites, serpentine, by modeling influence H2O-CO2 fluids during low-grade metamorphism crust using compositions a basalt an ultramafic cumulate. In basaltic with 5 wt% fluid, our models predict prehnite less oxidized, CO2-poor conditions...

OBJECTIVE To identify and classify the radiographic patterns of megaesophagus in Chagas disease, as seen on esophagograms and chest X-rays. MATERIALS AND METHODS This was a prospective study of 35 patients diagnosed with esophageal disease via manometry. The changes found on esophagograms were stratified according to Rezende's classification, divided into four categories (grades I through IV)...

Unsteady slip-flow of second grade non-Newtonian electrically conducting fluid over an oscillating sheet has been considered and solved numerically. A second-order slip velocity model is used to predict the flow characteristic past the wall. With the assumption of infinite length in x-direction, velocity of the fluid can be assumed as a function of y and t, hence, with proper variable change pa...

OBJECTIVE To evaluate the effect of electromagnetic (EM) navigation system on ventriculoperitoneal (VP) shunt failure rate through comparing the result of standard shunt placement. METHODS All patients undergoing VP shunt from October 2007 to September 2010 were included in this retrospective study. The first group received shunt surgery using EM navigation. The second group had catheters ins...