著者
野田 剛広 新毛 豪 清水 潤三 畠野 尚典 堂野 恵三
出版者
日本胆道学会
雑誌
胆道 (ISSN:09140077)
巻号頁・発行日
vol.30, no.4, pp.682-688, 2016-10-31 (Released:2016-11-10)
参考文献数
29

急性胆嚢炎に対する診療ガイドラインにおいては,発症後72時間以内の早期手術が推奨されているが,72時間以上経過した症例に対する手術成績は不明である.今回我々は,72時間以上経過した症例に対する緊急腹腔鏡下胆嚢摘出術の手術手技と治療成績について検討した.2005-2014年の間に急性胆嚢炎と診断し,緊急腹腔鏡下胆嚢摘出術を施行した233例を対象とした.発症後72時間以内の早期群(n=193)と72時間以降の後期群(n=40)に分類し解析を行った.平均手術時間は,早期群83分,後期群87分と差を認めなかったが,平均出血量は,早期群69mlに対し,後期群140mlと増加を認めた(p=0.0084).術後合併症,開腹移行率,術後在院日数は差を認めなかった.発症後72時間以上経過した急性胆嚢炎に対する緊急腹腔鏡下胆嚢摘出術は,安全に施行可能であり許容可能と思われた.
著者
小林 宏光 佐藤 方彦
出版者
Japan Society of Physiological Anthropology
雑誌
The Annals of physiological anthropology (ISSN:02878429)
巻号頁・発行日
vol.11, no.1, pp.45-49, 1992-01-01 (Released:2008-02-08)
参考文献数
7
被引用文献数
38 53

The present study was desigend to examine the effects of illuminance and color tempera-ture of room lighting. Four male students volunteered as subjects. Each of them performed a calculation task for 95 minutes under nine different lighting environments consisting of a combination of three levels of illuminance (320lx, 1000lx and 2000lx) and three levels of color temperature (3000°K, 5000°K and 7500°K). Three types of fluorescent lamps were used as a light source to vary the color temperature. Blood pr.essure, critical flicker frequency (CFF) and accommodation time of eye movements were measured every 30 minutes during the task. The accommodation time was significantly influenced by the illuminance level and both the relaxation time and contraction time were prolonged under 2000lx. The diastolic blood pressure was significantly affected by the color temperature level and increased under 7500°K. As for the CFF, the interaction between illuminance and color temperature was significant. These results mean that not only the illuminance but also color temperature produces physio-logical effects. The present study may be the first to recognize the effect of color temperature on the blood pressure
著者
西野 友年 Roman Krcmar Andrej Gendiar
出版者
一般社団法人 日本物理学会
雑誌
日本物理学会講演概要集 72.1 (ISSN:21890803)
巻号頁・発行日
pp.2755, 2017 (Released:2018-04-19)

正方格子上の6状態クロック模型の BKT 転移を、角転送行列繰り込み群により数値的に観察し、臨界現象をエンタングルメント・エントロピーから解析した。得られた、エンタングルメント・エントロピーのグラフは、「天の香具山」を彷彿とさせる、のどかな曲線であった。主観はともかくとして、定量解析により、BKT 転移を外挿により推定した。

1 0 0 0 土木技術

出版者
土木技術社
巻号頁・発行日
1946
著者
望月 公廣
出版者
公益社団法人 東京地学協会
雑誌
地学雑誌 (ISSN:0022135X)
巻号頁・発行日
vol.126, no.2, pp.207-221, 2017-04-25 (Released:2017-06-12)
参考文献数
39
被引用文献数
2 3

Seismicity accompanying subduction of one plate under the other is active in subduction zones. This seismicity is not uniformly distributed along strike; aseismic regions may be identified in a band of active seismicity. Such an uneven distribution may be attributed to the heterogeneity of frictional properties along the plate interface. Variations in the physical properties of the top-most layer over the subducting plate and rough topography along the plate interface are considered to be factors determining frictional properties. Recent active-source seismic surveys have revealed characteristics of the plate interface in detail and provide an understanding of how regional seismicity and slip distributions of major earthquakes are controlled. Seismicity around the northern limit of the 2011 Tohoku-oki earthquake shows a good correlation with seismic reflectivity along the plate interface, and suggests that the water content and/or the amount of clay minerals in a thin layer over the top of the subducting plate is a major factor. A subducting seamount was identified from a seismic survey around the southern limit of the 2011 Tohoku-oki earthquake off Ibaraki Prefecture. Repeating M 7 earthquakes share the same source at the subduction front of the seamount, while the source area of the largest aftershock of the 2011 Tohoku-oki earthquake lies next to it. The fault slip of these earthquakes, once initiated at the base of the seamount, did not propagate over the seamount. The same relationship between fault slip and subducted seamount is identified for a large slow slip at the Hikurangi margin. Physical or structural properties controlling seismicity or fault slip along the plate interface appear to be characteristics of the subducting plate. The importance of geophysical surveys of the incoming plate can now be further emphasized to provide a better understanding of seismicity along the plate interface.