Successful management of placenta percreta by cesarean hysterectomy with transverse uterine fundal incision

Placenta accreta presents one of the highest risks to pregnancy, and its more severe variant, placenta percreta, is particularly risky. The incidence of both conditions is increasing. Placenta percreta requires a cesarean hysterectomy for management, but the challenges associated with this surgery often result in severe obstetric hemorrhaging and high rates of maternal morbidity. Several recent obstetric studies have reported on the usefulness of the transverse uterine fundal incision for the management of placenta accreta and its variants. However, these reports included only a few cases of placenta percreta. Here we present a case of placenta percreta covering the anterior uterine wall that was successfully managed using a transverse fundal incision, which avoided incising the placenta at delivery and thus reduced maternal blood loss. After delivery, the patient underwent a total abdominal hysterectomy without the need for a blood transfusion. We conclude that a transverse uterine fundal incision can be very useful for the management of placenta percreta of the anterior uterine wall

<Original>Fire Endurance of Surface Densified Wood of Albizzia falcata Treated with Fire Retardant

この論文は国立情報学研究所の学術雑誌公開支援事業により電子化されました。Bending strength and creep behavior under fire of solid wood, laminated veneer lumber (LVL) and glued-laminated timber of albizzia (Albizzia falcata Backer) coated with fire retardant and hot pressed (surface densified) at several temperatures were evaluated. Chemical used was trimethylolmelamine mixed with phosphoric acid coated at the amount of 100g/m^2. Results showed that the fire endurance (time to creep rupture) of surface densified albizzia treated with the chemicals was improved, compared to that of untreated ones. Temperature of hot pressing of 160℃ resulted in the longest time to creep rupture. Bending strength of woods was not affected when pressed at the temperature below 200℃

<Original>Removal of Mercury from Aqueous Solutions of Mercuric Chloride Using Wood Powder Carbonized at High Temperature

この論文は国立情報学研究所の学術雑誌公開支援事業により電子化されました。Japanese cedar (Cryptomeria japonica D. Don) wood powder was carbonized at varying temperatures from 400° to 2,400℃ and used to remove mercury from 5 ppm mercuric chloride solutions. The removal efficiency of the carbonized wood materials changed depending on the carbonization temperature. The carbonization temperatures that provided wood powder with high removal capacity ranged from 600° to 1,400℃. Low removal of mercury from the aqueous solutions was observed for carbonization temperatures below 400° and above 1,600℃. The specific surface area of the carbonized wood materials was highly correlated with the capacity to remove mercury

<Note>Metal Distribution in the Laguna Lake Water System and Adsorption of Some Metals by Carbonized Wood Powder

この論文は国立情報学研究所の学術雑誌公開支援事業により電子化されました。The metal distribution in the Laguna lake water system was assessed using water samples taken from the surface, middle and bottom portions of the lake at five designated sampling points. Trial purification of the wastewater was conducted using raw and carbonized wood powder from wood wastes of Acacia mangium. Beneficial and dangerously toxic metals were present in all the water samples. Sodium (Na) was the most dominant alkali metal followed by potassium (K), magnesium (Mg) and calcium (Ca). Toxic metals such as arsenic (As), cadmium (Cd), cobalt (Co), chromium (Cr), copper (Cu), lead (Pb), iron (Fe), mercury (Hg), zinc (Zn), etc., were found but each concentration was below the water quality criteria set by the National Pollution Control Commission of the Philippines. Adsorption tests showed that wood waste from Acacia mangium could be a potential purification material in treating Laguna lake water samples, and especially raw and carbonized wood powder of this species could be used as material in adsorbing heavy metals like Zn and Cu

High-Resolution Tactile Sensor Using the Movement of a Reflected Image

In recent years, many tactile sensors have been developed with the advancement in robotics. For example, there are sensors that mea-sure the contact state or force distribution. They are very useful, but the resolution of the measurement is still inferior as compared to that of a human. Thus, we propose a new type of optical tactile sensor that can detect surface deformation with high precision by using the principle of optical lever. We construct a tactile sensor that utilizes the resolution of a camera to the maximum by using transparent silicone rubber as a deformable mirror surface and tak-ing advantage of the reflection image

Elucidation of the Relationship between CD Cotton Effects and the Absolute Configuration of Sixteen Stereoisomers of Spiroheterocyclic-Lactams

As part of research to search for antitumor agents in fungi originating from marine organisms, cephalimysins E&ndash;L were isolated from a culture broth of Aspergillus fumigatus that was separated from the marine fish Mugil cephalus. One- and two-dimensional nuclear magnetic resonance spectra revealed their planar structures, which are diastereomers of each other. Their absolute stereostructures were established by epimerization at C-8 with acidic methanol, nuclear Overhauser effect spectroscopy (NOESY), and circular dichroism (CD) spectroscopy. These demonstrated the detailed relationships between absolute configuration and CD Cotton effects. Additionally, in the growth inhibition assay against P388, HL-60, L1210, and KB cell lines, some of the fungal metabolites or reaction products exhibited moderate activities