著者
新稲 法子
出版者
懐徳堂記念会
雑誌
懐徳 (ISSN:02884941)
巻号頁・発行日
no.89, pp.44-58, 2021-01
著者
曽田 武史 矢倉 千昭 高畑 哲郎 岡 真一郎 田原 弘幸
出版者
理学療法科学学会
雑誌
理学療法科学 (ISSN:13411667)
巻号頁・発行日
vol.23, no.4, pp.515-519, 2008 (Released:2008-10-09)
参考文献数
23

[目的]本研究では,背臥位から腹臥位,続いて立位に姿勢変化させたときの血圧レベルの変動について調査した。[対象と方法]健常成人54名(男性27名,女性27名,平均年齢22.0±2.7歳)を対象に各姿勢における収縮期血圧(SBP),拡張期血圧(DBP)および脈拍数(PR)を測定した。[結果]腹臥位は背臥位や立位に比べてSBPが有意に低下し,背臥位に比べてPRが有意に増加した。立位は背臥位や腹臥位に比べて有意にDBPは上昇し,PRも増加した。[結語]本研究の結果から,背臥位から腹臥位への姿勢変化における短時間の血圧レベルの変動は,背臥位から立位への姿勢変化に比べてDBPやPRの変動が少なく,SBPが低下する可能性があることが示された。
著者
木村 修一 Shuichi KIMURA
出版者
昭和女子大学近代文化研究所
雑誌
学苑 (ISSN:13480103)
巻号頁・発行日
no.830, pp.1-10, 2009-12

It is well-known that the liquid component of blood can be an important marker for assessing health conditions. But the cellular components of blood also convey to us various other information. This paper explains the knowledge obtained from the author's experiments examining blood cells, and how this knowledge elucidates regulational functions of aging. For example, from the facts that: 1. the life span of germfree mice was longer than that of conventional mice, 2. the life span of normal mice with restricted diet(60%)was longer than that of non-restricted normal mice, and that, as the author's experiment revealed, 3. the length and life of their small intestinal epithelial cells were also greater than those of each control group, the author surmises that small intestinal epithelial cells might be a marker for detecting the situation of the regulation of aging. Experiments designed to measure the life span of red blood cells lead the author to find that the number of T-cells in mice on restricted diets increased and immune responses were accelerated. And finally, the author explains experiments examining platelets of laboratory mice to determine the function of EPA(Eicosapentaenoic acid)in the blood coagulation system.
著者
吉田 平太郎
出版者
Japan Society of Corrosion Engineering
雑誌
防食技術 (ISSN:00109355)
巻号頁・発行日
vol.33, no.7, pp.409-416, 1984
著者
渡辺 興亜
出版者
公益社団法人 日本雪氷学会
雑誌
雪氷 (ISSN:03731006)
巻号頁・発行日
vol.62, no.3, pp.279-285, 2000-05-15
参考文献数
11

南極氷床内陸部および日本列島の積雪域における広域雪氷観測を通じて, いかにして雪氷化学観測の方法が確立していったかを筆者の個人的経験を回想しつつ述べた.
著者
百島 則幸
出版者
富山大学水素同位体科学研究センター
雑誌
富山大学水素同位体科学研究センター研究報告 (ISSN:13463675)
巻号頁・発行日
vol.20, pp.1-10, 2000
被引用文献数
1

Environmental tritium was first observed in a helium fraction at a liquid air production facility in Germany in 1949. During the 1950s and early 1960s, huge amounts of artificial tritium were released into the atmosphere by nuclear testing. The environmental tritium level increased to more than 200 times the natural tritium level. Since the signing of a test ban treaty in 1963, the environmental tritium level has decreased, and analysis of recent Japanese rain samples has shown that the environmental tritium level is close to that before the nuclear testing. Tritium released from nuclear bombs into the atmosphere has been used as a global-scale tracer in studies on water mass movement in the ocean, groundwater flow and atmospheric air mass movement. Useful and valuable results have been obtained in those studies. In the atmosphere, tritium exists in three different chemical forms: hydrogen (HT), water vapor (HTO) and hydrocarbons (CH3T). The concentration of HT the highest, followed by those of CH3T and HTO. The most interesting feature of these chemical species is their significantly different specific activities. HT has 106 TU, CH3T has 104 TU and HTO has 10 TU, suggesting that HT and CH3T have been released from nuclear facilities. Vegetation is sensitively responds to a change in environmental HTO level by rapid exchange of water molecules between leaf water and atmospheric water vapor. HTO vapor released into the air slowly contaminates soil water. A nuclear fusion facility is planed to use a large quantity of tritium that is comparable to natural tritium on the earth, indicating the necessity to maintain tritium in a nuclear fusion facility and the necessity to carefully monitor the environmental tritium level.
著者
木村 修一 Shuichi KIMURA
雑誌
學苑 = GAKUEN (ISSN:13480103)
巻号頁・発行日
vol.830, pp.1-10, 2009-12-01

It is well-known that the liquid component of blood can be an important marker for assessing health conditions. But the cellular components of blood also convey to us various other information. This paper explains the knowledge obtained from the author's experiments examining blood cells, and how this knowledge elucidates regulational functions of aging. For example, from the facts that: 1. the life span of germfree mice was longer than that of conventional mice, 2. the life span of normal mice with restricted diet(60%)was longer than that of non-restricted normal mice, and that, as the author's experiment revealed, 3. the length and life of their small intestinal epithelial cells were also greater than those of each control group, the author surmises that small intestinal epithelial cells might be a marker for detecting the situation of the regulation of aging. Experiments designed to measure the life span of red blood cells lead the author to find that the number of T-cells in mice on restricted diets increased and immune responses were accelerated. And finally, the author explains experiments examining platelets of laboratory mice to determine the function of EPA(Eicosapentaenoic acid)in the blood coagulation system.
著者
林 謙三
出版者
奈良学芸大学
雑誌
奈良学芸大学紀要 (ISSN:0369321X)
巻号頁・発行日
vol.3, no.3, pp.1-32, 1954-03-25
著者
河原 淳
出版者
森林野生動物研究会
雑誌
森林野生動物研究会誌 (ISSN:09168265)
巻号頁・発行日
vol.31, pp.11-18, 2005-12-25 (Released:2017-10-03)

I collected 7 individual of Sorex minutissimus hawkeri in the wetland of in Kiritappu Hamanaka-cho and in the sand area Kenbokuki Island. The capture record in Kenbokki is since S. m. hawkeri was already caught in Hichirippi, Hamanaka in 1985. S. m. hawkeri was captured until now was Wetland and a forest, this time they were caught in the sand area for the first time. The captures of this species were also recorded in Kunashiri, and Etorofu islands near Hokkaido. However the capture was no record in such a small island as Kenbokuki Island. S. m. hawkeri was observed eating beach fleas in a cage.
著者
河原 淳
出版者
森林野生動物研究会
雑誌
森林野生動物研究会誌 (ISSN:09168265)
巻号頁・発行日
vol.31, pp.19-24, 2005
被引用文献数
1

Sorex minutissimus hawkeri of 9 individuals was caught in August, 2004 and September, 2004 on Kenbokki Island of Hokkaido. Nine individuals were caught, and among those, five individuals were alive and were caught. S.m. hawkeri was caught in the range from the position of 5 m to 15 m from the coastline. S.m. hawkeri made space between grass and was resting there. S.m. hawkeri rose and fell frequently to the grass upper part. Moreover, S.m. hawkeri might not move for tens of seconds to several minutes, where it is the grass upper part and the head is hung down downward.
著者
鈴木 正己 武内 次夫
出版者
公益社団法人 日本分析化学会
雑誌
分析化学 (ISSN:05251931)
巻号頁・発行日
vol.9, no.2, pp.179-181, 1960
被引用文献数
2

吸光光度法によるウラン中のコバルトの定量方法として,R.W.Baneはコバルト・チオシアン酸錯塩とテトラフェニルアルソニウムクロライドとの反応生成物をクロロホルムで抽出する方法を応用し,J.M.Chiltonはコバルト,ニッケルおよび銅の三者をジエチルジチオカルバミン酸ナトリウムで定量している.前者の方法は微量物の定量には感度が十分でないし,また特殊の試薬を用いるのが欠点である.後者の方法では三元素の量的関係が重要であり,またコバルトの感度がニッケルおよび銅にくらべて低いため,コバルトの量が少ないと定量が困難である.<BR>ニトロソR塩はコバルトの定量試薬としてもっとも感度のよいもので,微量コバルトの定量にしばしば用いられているが,この種の方法により金属ウラン中の微量コバルトの定量をおこなった報告がみられないので,著者らはニトロソR塩を用いる核燃料金属ウラン中の微量コバルトの定量方法を研究した.<BR>ウラン中の微量コバルトを定量する場合,多量のウラン共存のためおよびウラン中の共存不純物たとえば鉄などのため直接この試薬を利用することはうまくいかなかった.したがってウランからコバルトを有機錯化合物として適当な有機溶媒で抽出し,分離濃縮してニトロソR塩で微量コバルトの定量をおこなった.分離濃縮の手段としてジチゾン,ジエチルジチオカルバミン酸ナトリウムなどを用いる抽出が考えられるが,試薬の調製,抽出の際のpH範囲などを考慮してジエチルジチオカルバミン酸ナトリウムが好適とおもわれた.したがって,この実験ではコバルトをジエチルジチオカルバミン酸錯化合物として分離したのち,抽出液中のコバルトをニトロソR錯化合物として定量する方法を検討した.その結果試料1gを使用したとき0.5ppm程度のコバルトの定量ができるようになった.