Inhibitory action of YJA20379, a new proton pump inhibitor on Helicobacter pylori growth and urease

The use of an episiotomy for vaginal delivery is a controversial topic in modern obstetrics. If one is done, however, correct technique of perineal trauma repair is important. The usual episiotomy has traditionally been closed with interrupted suture. The use of a less reactive material, e.g. polyglycolic acid (Dexon), seem to be suitable for subcutaneous skin closure and beneficial in terms of acute postpartum discomfort and healing. The comparison of healing and patient comfort parameters between interrupted and subcutis polyglycolic acid suture used for episiotomy repair after delivery was done. Patients had follow-up during hospital stay, and two months after delivery a self administered questionnaire was sent to all women who participated, enquiring about perineal pain, resumption of sexual intercourse and cosmetics of suture line. Of 52 patients who had repair with interrupted suture, 21 were lost to follow-up. Of 65 gravidas who had repair with subcutis suture, 23 were lost to follow-up. At the 3rd day postpartum examination, patients with subcutis sutures had significantly better healing. An inflammatory process was present in 2 of 52 patients with interrupted sutures comparable with 1 of 65 in the subcutis group, and a gaping wound in 0 of 52 and 1 of 65, respectively. Recovery of function, measured by resumption of sexual activity by 8 weeks, was demonstrated in 5 of 31 patients with interrupted sutures versus 24 of 42 patients who had subcutis sutures. Episiotomy repair with subcutis polyglycolic acid (Dexon) offers significant advantages over traditional interrupted suture, both in terms of wound healing and resumption of sexual activity.     

Preparation of NiO-ZrO2/SO 4 -2 catalyst and its catalytic activity for ethylene dimerization

NiO-ZrO₂/SO ₄ ^-2 catalysts were prepared by coprecipitation from the solution of nickel chloride -zirconium oxychloride mixture followed by treating with H₂SO₄ NiO-ZrO₂ alone without SO ₄ ^-2 was inactive as a catalyst for ethylene dimerization, but NiO-ZrO₂/SO ₄ ^-2 was found to be very active even at room temperature. The high catalytic activity of NiO-ZrO₂/SO ₄ ^-2 was closely correlated with the increase of acid strength by the inductive effect of sulfate ion adsorbed on NiO-ZrO₂. The decrease of catalytic activity above 150‡C of evacuation temperature was explained in terms of the structural change of catalyst from amorphous phase to crystalline, and the sintering.     

Effect of TiO2 on the Viscosity and Slag Structure in Blast Furnace Type Slags

TiO₂ additions up to 10 mass% behaved as a basic oxide and lowered the viscosity in the CaO–SiO₂–17 mass% Al₂O₃–10 mass% MgO‐based slags by depolymerizing the silicate network structure. Raman spectroscopy revealed the sum of NBO/Si 1 and 3 decreased while the sum of NBO/Si 2 and 4 increased with TiO₂ content. Unlike the silicate structures, the aluminate structures seems to be relatively unaffected by TiO₂ additions according to the FTIR results. 5 mass% TiO₂ significantly decreased the viscosity compared to the TiO₂ free slags, but beyond 5 mass% TiO₂ meaningful changes in the viscosity was not observed. From the comparison of the viscosity at constant TiO₂ of 5 and 10 mass% and varying CaO/SiO₂ ratio, increasing the CaO/SiO₂ ratio was more effective in decreasing the viscosity than TiO₂ additions.     

Application of GPS to monitoring of wind‐induced responses of high‐rise buildings

A new monitoring system using GPS is introduced to measure wind‐induced responses of high‐rise buildings. In this paper, wind‐induced responses of a long‐period structure include relative lateral displacements, acceleration records, and torsional displacements at the top of a building. After comparing responses of a test model measured by GPS with responses obtained by the most commonly used laser displacement meters and accelerometers, the wind‐induced responses of a 66‐story high‐rise building subject to the yellow dust storm were measured by the GPS‐based monitoring system. Based on the field measurement, it is concluded that the complete motion history of a high‐rise building can be monitored by GPS. Copyright © 2007 John Wiley & Sons, Ltd.