著者
下澤 楯夫
出版者
一般社団法人 日本生体医工学会
雑誌
BME (ISSN:09137556)
巻号頁・発行日
vol.10, no.11, pp.29-37, 1996-11-10 (Released:2011-09-21)
参考文献数
29
著者
山口 昌樹 金森 貴裕 金丸 正史 水野 康文 吉田 博
出版者
一般社団法人 日本生体医工学会
雑誌
医用電子と生体工学 (ISSN:00213292)
巻号頁・発行日
vol.39, no.3, pp.234-239, 2001 (Released:2011-10-14)
参考文献数
15
被引用文献数
17

It is more than a half-century since Dr. Hans Selye proposed that the reaction to an external stimulus to a human be called a “stress.” However, an index that can quantitatively evaluate the stress has not yet been established. We have focused on the change of α-amylase activity in saliva (salivary amylase) and carried out an in vivo evaluation in six normal subjects to define the levels of mental stress through amylase activity. In this evaluation, the Kraepelin Psychodiagnostic Test was used as a mental stressor for the subjects. In normal subjects, a comparatively quick response was observed by the experiment for stress load, which verified a correlation between mental stress and salivary amylase activity. The sign of gradient calculated from the salivary amylase activity was negative or positive, depending on whether the stress reaction is comfortable. Furthermore, when the salivary amylase activity and salivary total protein were measured, the effect of the salivary flow rate could be estimated. The change of salivary amylase activity was confirmed as being originated from stress. These results suggest that the monitoring of salivary amylase could be used as a noninvasive indicator of stress reaction.
著者
河田 聡 波多野 洋
出版者
一般社団法人 日本生体医工学会
雑誌
BME (ISSN:09137556)
巻号頁・発行日
vol.11, no.5, pp.3-11, 1997-05-10 (Released:2011-09-21)
参考文献数
25
著者
高橋 洋司 田澤 豊
出版者
一般社団法人 日本生体医工学会
雑誌
BME (ISSN:09137556)
巻号頁・発行日
vol.5, no.5, pp.25-40, 1991-05-10 (Released:2011-09-21)
参考文献数
20
著者
石山 陽事
出版者
一般社団法人 日本生体医工学会
雑誌
BME (ISSN:09137556)
巻号頁・発行日
vol.2, no.6, pp.401-407, 1988-06-10 (Released:2011-09-21)
参考文献数
6

多くのMEN器を使用する電磁環境下で, 生体計測中に混入する商用交流雑音をはじめ種々の雑音は計測の信頼性を損う要因となる. ここでは電源および機器相互の干渉などによって発生する雑音源について述べ, かつ具体的な雑音除去対策についても例をあげて解説する.
著者
本間 研一
出版者
一般社団法人 日本生体医工学会
雑誌
BME (ISSN:09137556)
巻号頁・発行日
vol.14, no.11, pp.13-20, 2000-11-10 (Released:2011-09-21)
参考文献数
19
著者
長岡 智明 櫻井 清子 国枝 悦夫 渡辺 聡一 本間 寛之 鈴木 保 河川 光正 酒本 勝之 小川 幸次 此川 公紀 久保田 勝巳 金 鳳洙 多氣 昌生 山中 幸雄 渡辺 敏
出版者
一般社団法人 日本生体医工学会
雑誌
医用電子と生体工学 (ISSN:00213292)
巻号頁・発行日
vol.40, no.4, pp.239-246, 2002 (Released:2011-10-14)
参考文献数
16
被引用文献数
11

We have developed high-resolution voxel models of the whole body from MR images of Japanese adult male and female volunteers. These models can be used for dosimetry simulation of exposure to radiofrequency electromagnetic fields over 1GHz. The MR images were taken by making a series of scans over several days; that is, a subject was scanned in several blocks. Scan parameters were optimized for head and body, respectively, in order to get practical contrast and to save data acquisition time. An implement was used to keep the position and form of the subject. All of the MR images were converted to TIFF format. The continuities between different blocks of the data were corrected to form a whole body. Furthermore, the resolution of the images was changed into 2×2mm. Male and female models were segmented into 51 tissues and organs. This segmentation was performed manually using popular image-processing software. The developed models consisted of isotropic voxels with a side of 2mm. Although the masses of the skin and small-sized tissues and organs of the models deviated from the averaged values for Japanese due to the limitation of spatial resolution, the masses of the other tissues and organs and the morphometric measures were nearly equivalent to those of the average Japanese. The models are the first voxel models of the average Japanese that can be used for the dosimetry of electromagnetic fields over 1GHz. Furthermore, the female model is the first of its kind in the world. The models can also be used for various numerical simulations related to Japanese human bodies in other fields of research.
著者
金井 寛
出版者
一般社団法人 日本生体医工学会
雑誌
BME (ISSN:09137556)
巻号頁・発行日
vol.1, no.10, pp.806-811, 1987-10-10 (Released:2011-09-21)
参考文献数
6

本年5月, 関係者の努力が実って「臨床工学技士法」が成立した. これはクリニカルエンジニアリング (CE) 担当者の国家資格制度を定めたもので, 世界最初の制度として注目される. ここでは本法の概要と, その周辺における問題点について解説したが, 関係者各位の理解を深める一助となれば幸いである.

2 0 0 0 OA 生殖機能と脳

著者
佐久間 康夫
出版者
一般社団法人 日本生体医工学会
雑誌
BME (ISSN:09137556)
巻号頁・発行日
vol.14, no.11, pp.29-36, 2000-11-10 (Released:2011-09-21)
参考文献数
25