著者
愛場 庸雅 杉本 緑 松田 泰明 杉浦 欣一 中井 義明 中島 俊文
出版者
耳鼻咽喉科臨床学会
雑誌
耳鼻咽喉科臨床 (ISSN:00326313)
巻号頁・発行日
vol.83, no.3, pp.391-395, 1990-03-01 (Released:2011-11-04)
参考文献数
12

The effects of therapeutic irradiation on olfactory function were investigated in 20 patients who received radiation therapy because of a malignant tumor of the nose or paranasal sinuses. The standard olfaction test with a T&T olfactometer and an intravenous olfaction test were given before the radiation therapy, during the period of radiation therapy and 1, 3, 6 and 12 months or more later.Five patients whose olfactory epithelium was outside the radiation field showed no damage to olfactory function. The olfactory function of the other 15 patients whose olfactory epithelium had been exposed to radiation was not obviously changed or damaged at the time of radiation therapy. However, 6 months after irradiation, some patients showed a decline in olfactory function, and after 12 months, 4 of 7 patients showed severe damage to olfactory function.These results suggest that a therapeutic dose of irradiation will not cause severe damage to the olfactory function during the period of radiation therapy, but could cause delayed olfactory disorders in some patients after a few years. These olfactory disorders might be caused by damage to or degeneration of the olfactory epithelium or olfactory nerve.
著者
浅田 拓海 石田 眞二 松田 泰明 亀山 修一
出版者
公益社団法人 日本造園学会
雑誌
ランドスケープ研究(オンライン論文集) (ISSN:1883261X)
巻号頁・発行日
vol.5, pp.33-42, 2012 (Released:2012-04-11)
参考文献数
28
被引用文献数
1

To revitalize local areas and tourism using the landscape resources in community, Scenic Byways have been built since 2007 in Japan. In this study, we analyzed the regional characteristics of sequential road landscape using the image features (fractal dimension, sky share, green share) of photographs taken at 20-m intervals on the Scenic Byways of Hokkaido and Kanto. The structural (urbanization level, vastness level, forest level) and fluctuation (short-term fluctuation of landscape, contrast of nature and urbanization, contrast of land and forest, fluctuation of skyline) characteristics of the sequential landscapes were evaluated from the average values and the power spectrum density of image features, respectively. In comparison of the Scenic Byways of both regions, the Hokkaido route is vast and monotonous, while the Kanto route is forested, urban and fluctuating. In addition, the sequential landscapes were classified into five clusters based on their structural and fluctuation characteristics, and then the features of each cluster were evaluated.