A new 5a, 8a - epidioxy sterol named Axinysasterol (1) with a known compound (6R, 7S)-7-amino-7, 8-dihydro-a-bisaboIene hydrochloride (2) was isolated from the Okinawa marine sponge Axinyssa sp. The structure of Axinysasterol (1) deduced as 5a, 8a-epidioxyergosta - 6,22,25-trien-3B-ol on the basis of chemical and spectral evidence.

Our aim was to study the scan protocol of 16 DAS (Data Acquisition System) multidetector-row CT (MDCT) and to ascertain whether we could reduce radiation exposure and scanning time, while maintaing image quality in the Virtual endoscopy (VE).We made a mimic gastrointestinal tract and examined the result by changing a scan protocol of 16 DAS MDCT.We found that a reduction of radiation exposure and scanning time depended on slice width, angle of the table, rotation time, table speed, mAs/slice and resolution.The study confirmed that it was possible to use the scan protocol of MDCT with a radiographic dose of 40% and scanning time of 50%, without changing image quality in the VE.
Radiation ; amsonic acid ; Protocols documentation ; Endoscopy ; Accident due to exposure to weather conditions

Aim:The usefulness of high-density barium, which was made to 150w/v% (MIX150), was examined to obtain better radiographs of the intestines. Methods: “MIX150” was compared with existing pharmaceutical “BAM100” to evaluate x-ray images (barium adhesion, dryness evaluation). MIX150 was used in 232 patients (mean age 56 years), while BAM 100 in 210 patients (mean age 55 years). Results: In terms of adhesion, MIX150 was excellent in the the cecum significantly and in dryness evaluation, in the entire region of the colon. Conclusion: High-density barium (150w/v%) was useful for enhancing the quality of radiographic images.
physical density ; Euphoric mood ; Roentgen Rays ; Barium ; Lower case vee