CHDM reduced the heat of fusion and melting and glass-transition temperatures of the PET copolymers. Process modeling was performed with mass balances of different functional groups and species. Equations
of mass balances were integrated numerically. Numerical simulation and experimental results were in very good agreement. By modeling, the effects of the reaction temperature and feed molar ratio on the conversion and formation of diethylene glycol were studied. (C) 2009 Wiley Periodicals, Inc. J Appl Polyrn Sci 113: 3520-3532, 2009″
“A 78 year-old woman presented with a history of 15 days of dyspnea and tachypnea at rest. A distended right ventricle with free-wall hypokinesis and displacement of the interventricular septum toward the left ventricle were shown on echocardiography The patient suddenly arrested. She underwent BMS-345541 mw cardiac catheterization and selective pulmonary angiography for suspected pulmonary embolism while undergoing cardiopulmonary resuscitation. With the diagnosis of pulmonary embolism TGF-beta assay confirmed, recombinant tissue plasminogen activator was given immediately in the catheterization room.
This case shows how pulmonary embolism can be diagnosed with pulmonary angiography during cardiopulmonary resuscitation and the life-saving result from rapid thrombolysis with recombinant tissue plasminogen activator.”
“The corrosion inhibition of aluminium in alkaline medium was studied at 30 and 40 degrees C in the presence of polyethylene glycol (PEG) using gravimetric (weight loss) and thermometric techniques. The effect of halides (KCl, KBr, and KI) on the inhibitory action of PEG was also studied. It was found
that PEG acted as inhibitor for aluminium corrosion in the alkaline medium. Inhibition efficiency increased with increasing inhibitor concentration. An increase in temperature led to increase in both the corrosion rate and inhibition efficiency in the absence and presence of inhibitor and halides. Phenomenon of chemical adsorption mechanism is proposed from the values of E(a), Q(ads), and Delta G(ads)degrees obtained. The adsorption www.selleckchem.com/products/gdc-0068.html of PEG on the surface of aluminium was found to obey Flory-Huggins and Temkin adsorption isotherms. The synergism parameter, S, evaluated was found to be greater than unity indicating that the enhanced inhibition efficiency caused by the addition of halides is synergistic in nature. The inhibition efficiency, surface coverage and synergism parameter increased in the order; I(-) > Br(-) > Cl(-) showing that a joint adsorption of PEG and halide ions on aluminium plays a significant role in the adsorption process. (C) 2009 Wiley Periodicals, Inc. J Appl Polym Sci 113: 35333543, 2009″
“Thromboembolic events are an infrequent complication of hormonal treatment for infertility and are generally related to the ovarian hyperstimulation syndrome. The presence of factor V Leiden and a mutation of G20210A prothrombin Mutation are further risk factors for thromboembolic events.