The aim of this study was to develop a new simple method for measuring the vaporized volume and to evaluate the outcome of high-power potassium-titanyl-phosphate (KTP) photoselective laser vaporization. A total of 65 patients, with a mean age of 67.7 yr (range 53 to 85), were included in the primary analysis. The vaporized volume was calculated as the pre-operative volume minus the immediate po...

Three unique diastereoisomers of 2,3,4,5-tetrafluorohexane have been prepared, compounds intermediate between hexane and perfluorohexane in their degree of fluorination, and they show very different conformational behaviour and physical properties.

BACKGROUND Perfluorocarbon (PFC) liquids are known to improve gas exchange and pulmonary function in various models of acute respiratory failure. Vaporization has been recently reported as a new method of delivering PFC to the lung. Our aim was to study the effect of PFC vapor on the ventilation/perfusion (VA/Q) matching and relative pulmonary blood flow (Qrel) distribution. METHODS In nine s...

Liquid-encapsulated lysozyme microspheres were successfully synthesized using a sonochemical method. The encapsulation of four different liquids, namely, sunflower oil, tetradecane, dodecane and perfluorohexane on the formation, stability and morphology of the lysozyme microspheres was studied. Among the four different liquids used for encapsulation, perfluorohexane-filled microspheres were fou...

M in ne ap ol is , M N 5 54 47 VAPORIZED PERACETIC ACID (VPA) STERILIZATION Peracetic Acid as a Biocide REVOXTM sterilization technology uses a room temperature vapor composed of three active compounds; hydrogen peroxide (H2O2), acetic acid and peracetic acid (PAA). PAA is formed by the reaction of acetic acid and H2O2 with the addition of a catalyst; these compounds exist in equilibrium and th...

Large solute translational energy leads to homogeneous line broadening in transient spectra due to the increased frequency of perturbing interactions with the solvent cage. Furthermore small solute rotation has been shown to be relatively unhindered in perfluorocarbon (PFC) solutions, leading to the observation of significant P and R rotational band structure in the absorption spectrum. Indeed ...

Toxic trace metallic elements such as arsenic, beryllium, cadmium, chromium, cobalt, lead, manganese, mercury, nickel, and selenium are usually contained in coal in various forms and trace amounts. These metals will either stay in the ash or be vaporized during high temperature combustion. Portions of the vaporized metals may eventually be emitted from a combustion system in the form of metal f...

Femtosecond laser vaporization-based mass spectrometry can be used to measure protein conformation in vitro at atmospheric pressure. Cytochrome c and lysozyme are vaporized from the condensed phase into the gas phase intact when exposed to an intense (10(13) W/cm(2)), nonresonant (800 nm), ultrafast (75 fs) laser pulse. Electrospray postionization time-of-flight mass spectrometry reveals that t...

Recent experiments have been conducted at NRL which were designed to evaluate the chemical reactivity of exploding conductor fuses and to relate the chemical process to fuse electrical performance. In these experiments, metallic fuses including aluminum wire and foils, lithium-aluminum alloy wire, and copper wire were vaporized in distilled water. Additionally, less precise tests were conducted...