著者
南川 久人 藤原 海 栗本 遼 安田 孝宏 原田 英美子 畑 直樹
出版者
日本実験力学会
雑誌
実験力学 (ISSN:13464930)
巻号頁・発行日
vol.16, no.1, pp.77-83, 2016-04-11 (Released:2016-04-11)
参考文献数
17
被引用文献数
1

Effects of microbubbles on germination and growth in deep flow technique of spinach (Spinacia oleracea) were investigated. In the germination experiment, four experiment plots; (1) underwater germination with microbubble water plot (MB plot), (2) underwater germination with aerated water plot (Aeration plot), (3) underwater germination with water plot (Water plot), (4) germination on wet cotton plot (Control plot), were used. Two hundred individuals were germinated for each plot. Germination rate of MB plot after 7 days was about twice as high as that of Aeration plot and Control plot. In the growth experiment, three experiment plots; (1) tenth solution concentration water with microbubble plot (MB plot), (2) tenth solution concentration water plot (Aeration plot), (3) full solution concentration water plot (Control plot), were used. Twelve individuals were grown for each plot. Leaves weight of MB plot was as much as that of Control plot. In contrast, plant physiological disorders appeared in all plants of Aeration plot. Multi-element determination revealed that K concentration of Aeration plot was lower than that of the others plots. These results indicate that microbubbles contribute to the plants absorbing the nutrient from roots.
著者
山田 泰之 風間 祐人
出版者
一般社団法人 日本機械学会
雑誌
ロボティクス・メカトロニクス講演会講演概要集 2021 (ISSN:24243124)
巻号頁・発行日
pp.2A1-D08, 2021 (Released:2021-12-25)

During overhead work, workers need to keep raising up upper limb weights. In that working posture, it is necessary to keep the arm with its own weight of approximately 2 to 4 kg. It is considered to be a cause of fatigue of arms and back. Therefore, in this research, we attempted to reduce the fatigue of the upward work by the weight compensation mechanism that balances the elastic force of the spring and their arms weight. It can compensate for their arms weight by the force of the spring in various postures of the arm at the time of work by using lightweight and highly accurate weight compensation mechanism authors developed. Furthermore, a horizontal multi-linkage mechanism that follows the movement of the shoulder and arm of a human is used. In this way, it is completely pure mechanical and simple structure without a motor and battery, and it can be expected effective in all upward works. The mechanism of self-weight compensation and the degree of freedom and parameters of the link mechanism were studied. For practical use, we discussed how to achieve both a simple structure, work movement followability, and mass productivity.
著者
黒瀬 大介 古屋 成人 Djeddour D. H. Evans H. C. 對馬 誠也 土屋 健一
出版者
九州病害虫研究会
雑誌
九州病害虫研究会報 (ISSN:03856410)
巻号頁・発行日
vol.59, pp.31-37, 2013-11-29 (Released:2015-10-14)
参考文献数
22
被引用文献数
3 3

Fallopia japonica(Japanese knotweed, Polygonaceae), native to Japan, has been a serious invasive perennial weed in North America and large parts of Europe, especially in the UK, where there is an urgent need for a classical biological control strategy. Surveys have confirmed the presence of specialized plant pathogens in the native range of Japan. The results of the surveys showed that three fungal diseases of two rusts and a leaf-spot disease were predominantly common and widespread in the field. These rusts were identified as Puccinia polygoni-amphibii var. tovariae and Aecidium polygoni-cuspidati. Furthermore, a leaf-spot fungus morphologically identified as Mycosphaerella polygoni-cuspidati is also distributed widely in Japan. In the field, P. polygoni-amphibii var. tovariae and M. polygonicuspidati were confirmed to have severe infectivity to F. japonica. Thus, it is suggested that these two pathogens have high potential to become classical biological control agents for F. japonica.
著者
神名 麻智 木村 直人 山下 康貴 柳田 高志 松村 幸彦
出版者
The Japan Petroleum Institute
雑誌
Journal of the Japan Petroleum Institute (ISSN:13468804)
巻号頁・発行日
vol.56, no.5, pp.326-330, 2013 (Released:2013-11-01)
参考文献数
15
被引用文献数
6 6

草や木に代表されるリグノセルロース系バイオマスから効率よくエネルギーを生産することは,今後のエネルギー生産において非常に重要な課題である。リグノセルロース系バイオマスからエタノールを生産する過程の一つである水熱前処理はその処理過程で,後の処理段階である発酵を阻害する物質類を生成する。これらの発酵阻害物質は酵母の増殖,発酵に影響を及ぼすことが知られているが,定量的な整理は行われておらず,反応器の設計には困難が生じている。本研究では4種類の発酵阻害物質について酵母増殖に与える影響を実験的に確認,Monod式にフィッティングさせ,発酵阻害物質のMonod式のパラメーターに及ぼす影響を確認した。
著者
Kazunari ARAI Masayo HOSOKAWA Mika KUNISHIMA
出版者
Japan Society of Kansei Engineering
雑誌
International Symposium on Affective Science and Engineering (ISSN:24335428)
巻号頁・発行日
pp.1-4, 2022 (Released:2022-05-31)
参考文献数
5

Our research is to recognize the tea leaves opening stage the Deep Learning image analysis. Since the quality of tea depends on the stage of the growth, it is therefore important to predict the leaf opening period. Relative amounts of amino acid and theanine has significant effect on the quality of tea. High quality plucked tea leaves contain the maximum level of theanine. However, over time theanine changes to catechin an astringent ingredient in the sunlight. This means the content of the “Umami” ingredients is reduced. The hypothesis in this study is Umami’s level changes over time can be predicted by image analysis. Image analysis is performed using the Continuous Wavelet Decomposition (CWD), and the Deep Learning (DCGAN, PCA, SAE, and LSTM) as methods. We combine these in certain order and use them in analysis. The advantage of with combine 5 methods grades “fuzzy” tea photo images, difficult to classify accurately, than with one single method, as spectrum analysis, AKAZE and so on. By developing an iPhone application that feed back the analysis predict the optimal picking time, it can contribute to the tea quality prediction of large tea farm a large-scale.
著者
高田 晴子 高田 幹夫 金山 愛
出版者
Japan Society of Health Evaluation and Promotion
雑誌
総合健診 (ISSN:13470086)
巻号頁・発行日
vol.32, no.6, pp.504-512, 2005-11-10 (Released:2010-09-09)
参考文献数
12
被引用文献数
13 10

加速度脈波測定システム (APG) を用いて, 1) 自律神経機能評価の異なった指標である心拍変動係数 (CVaa%) と心拍変動周波数解析 (MEM法) の低周波領域と高周波領域のパワー比 (LF/HF) の関係性を明らかにすること, 2) 安静時および日常活動時のLF/HFの標準範囲を得ること, 3) 心拍変動周波数解析パラメータのサーカディアンリズムの存在の検討である。対象および方法: 1) 21歳女性1名を対象に62日間起床直後にAPG2分間と基礎体温を記録した。2) 健常男性30~59歳の193名について午後時間に運動前と運動後のAPGを2分間測定した。統計的解析: 1) 起床時のCVaa%, LF, HF, Total Power, LF%, HF%, LF/HFの62日間の平均を算出した。各パラメータと基礎体温との相関関係およびサーカディアンリズムを観察した。2) 上記の各パラメータについて, 加齢差および運動の影響を統計的に検討した。CVaa%と脈拍数に相関するパラメータを調べた。結果: 1) 起床直後のLF/HFは1.4±0.9であった。また, 基礎体温と有意な相関関係を示したのはTotal Power, HF, LFであった。これらは二相性のサーカディアンリズムを持ち, 基礎体温とは逆の関係を示した。2) 運動前も後もLF, HF, Total Power, HF%, LF%について有意な加齢差はなかった。運動前LF/HFも有意な加齢差はなかったが, 運動後LF/HFは高齢者の方が有意に小さかった。運動前に比べて, 運動後のTotal Powerは有意な変化がなかった。運動後のHF, HF%は有意に減少した。運動後のLF%およびLF/HFは有意に増加した。なお, 運動前のLF/HFの95%信頼区間は2.0~2.6, 運動後は4.3~5.7であった。CVaa%と有意に相関したのはTotal Power, LF, HFであり, LF%, HF%, LF/HFとは有意な相関はなかった。結論: 1) LF/HFは非常に安静な状態では2.0より小さく, 日常の安静時では2~3, 副交感神経活動が抑制または交感神経活動の興奮状態では4.0以上の値が目安となる。2) CVaa%は自律神経活動を反映するが, LF/HFとは関係がなく自律神経バランスを反映するわけではない。3) 若い女性の自律神経活動は基礎体温と逆の二相性のサーカディアンリズムを持つ。
著者
照屋 寛善 宮城 重二 平良 一彦
出版者
The Japanese Society of Health and Human Ecology
雑誌
民族衛生 (ISSN:03689395)
巻号頁・発行日
vol.48, no.3, pp.108-115, 1982 (Released:2011-02-25)
参考文献数
9

We have tried to classify the health/medical services administration in Okinawa after World War II into five periods and to describe the trends of major communicable diseases and causes of death for each period. First period (1945-49, the period under the administration of the U.S. Military Government (USMG)): In those days, the major activities of health/medical services for Okinawa Civilians were first, supplying food and second, controlling acute communicable diseases; especially, malaria which was very prevalent. USMG executed an aggressive sanitation program which included DDT spraying. Second period (1950-51, the period during which the USMG administration turned control over to a civil administration): Acute communicable diseases were eradicated by the aggressive sanitation control, but chronic communicable diseases - leprosy, tuberculosis, venereal disease and others became more prevalent. USMG issued many ordinances to affect "control of communicable diseases". USMG especially showed deep concern for controlling venereal disease and established district health centers and began free treatment for venereal disease in these centers. Third period (1952-64, the period of full-scale construction of U.S. Military bases): Markets, crowded houses, slums, so-called red-light districts and other similarly difficult living situations developed around U.S. Military bases with the full-scale construction of the bases, and chronic communicable diseases, especially, tuberculosis were very prevalent in the 1950's and 1960's. However in the 1960's the death rate due to tuberculosis decreased gradually as did the rates for gastroenteritis and pneumonia or bronchitis. On the other hand, the death rate due to adult diseases such as cerebrovascular disease, cancer, heart disease and others increased year by year. Fourth period (1965-71, the period of a great increase in financial and technological aid from the Government of Japan to Okinawa): The period started from the time when the late Prime Minister Mr. Sato made a speech on his visit to Okinawa in 1965 that a medical school should be established in University of the Ryukyus. From that time the financial and technological aid from the Government of Japan to Okinawa was substantial. A vaccination program to fight tuberculosis for health personnel, families of tuberculosis patients, students of the first and second year of junior high school was established in 1966, and consequently the morbidity rate due to tuberculosis decreased year after year. Fifth period (1972-, the period after Japanese laws were applied). After the application of Japanese laws, the condition of health/medical services in Okinawa improved considerably. The mortality and morbidity rates due to adult diseases increased significantly as the rates for communicable diseases declined.
著者
SOICHIRO KUSAKA TSUTOMU SAITO ERIKO ISHIMARU YASUHIRO YAMADA
出版者
The Anthropological Society of Nippon
雑誌
Anthropological Science (ISSN:09187960)
巻号頁・発行日
pp.2202191, (Released:2022-05-19)
被引用文献数
1

Many human skeletal remains of the Late–Final Jomon period have been found in shell-mounds on the Atsumi peninsula in Aichi Prefecture, Japan. Several types of burials have been found, such as mass burial and bone-gathering burials arranged like a square board (banjo-shuseki burial). In this study, strontium isotope analysis was performed to reveal the meanings of banjo-shuseki burials. The materials included 22 samples of tooth enamel and bones from the Hobi shell-mound, and 30 samples from the Ikawazu shell-mound. The concentration of calcium and strontium was measured, as were the strontium isotope ratios. The results indicated that the tooth enamel from the banjo-shuseki burial exhibited higher strontium isotope ratios than those of tooth enamel from the single burial in Hobi. The tooth enamel from the banjo-shuseki burial and a mass burial in Ikawazu included some individuals with higher strontium isotope ratios. These ratios were higher than the range of the values of human bone samples, modern plants around the sites, and the enamel of terrestrial animals, indicating the possibility that these people grew up in a different place to the sites where they were buried. The individuals in the banjo-shuseki burials may include immigrants who grew up in other areas or their diets incorporated food from other areas.
著者
鈴木 舞衣 薬袋 奈美子
出版者
公益社団法人 日本都市計画学会
雑誌
都市計画報告集 (ISSN:24364460)
巻号頁・発行日
vol.21, no.1, pp.84-89, 2022-06-08 (Released:2022-06-08)
参考文献数
6

外遊びは子どもにとって健やかな成長や幸福度の向上のために必要な生活行為の一つである。しかし、現代の子どもたちは外で遊ばない傾向にある。加えて、子どもの遊び空間は特に都市部において公園に限定化されており、自由に遊べる空間が不足している。 本研究では、子どもの外遊びの状況を把握するとともに、外遊びを妨げる要因の一つとして地域住民の外遊びに対する迷惑意識に着目し、調査を行った。その結果、地域住民は外遊びで発生する騒音に不満を持っていること、住宅が密集している狭い道路で特に苦情が発生していることが明らかになった。子どもたちは外遊びがルールやマナーによって規制されていると感じており、自由に遊べないことに不満を抱いていることがわかった。また、地域によっては路上で遊ぶことを好む子どももおり、郊外に住む子どもは都心に住む子どもに比べて路上で遊ぶ傾向があることがわかった。
著者
荒木 厚 井藤 英喜
出版者
一般社団法人 日本老年医学会
雑誌
日本老年医学会雑誌 (ISSN:03009173)
巻号頁・発行日
vol.55, no.1, pp.1-12, 2018-01-25 (Released:2018-03-05)
参考文献数
71
被引用文献数
2 4

「高齢者糖尿病の診療向上のための日本糖尿病学会と日本老年医学会の合同委員会」によって作成された「高齢者糖尿病ガイドライン2017」のエッセンスを紹介し,解説を加えた.高齢者糖尿病では認知機能や身体機能の障害がおこりやすく,それらの評価を含む高齢者総合機能評価を行うことが大切である.高齢者糖尿病の血糖コントロール目標(HbA1c値)は認知機能,ADL,併発疾患,重症低血糖のリスクなどに基づいて設定する.食事療法は過栄養だけでなく,低栄養,サルコペニアなどを考慮して行い,タンパク質やビタミンなどを十分に摂取する.運動療法は身体活動量を増やし,有酸素運動だけでなく,レジスタンス運動やバランス運動を行うことが望まれる.薬物療法は低血糖および他の有害事象を防ぐため,個々の心身機能や病態に十分配慮して行い,低血糖やシックデイの対策を行う.アドヒアランス低下や多剤併用にも注意する.今後,認知機能の簡易な評価法の開発,介護施設入所者の糖尿病のエビデンスの集積,および大規模なレジストリー研究などを行うことが,ガイドラインのさらなる発展のために必要である.
著者
堀江 秀樹 安藤 聡 齊藤 猛夫
出版者
公益社団法人 日本食品科学工学会
雑誌
日本食品科学工学会誌 (ISSN:1341027X)
巻号頁・発行日
vol.60, no.11, pp.661-664, 2013-11-15 (Released:2013-12-31)
参考文献数
13
被引用文献数
4 8

γ-アミノ酪酸(GABA)にはストレス緩和効果が期待されている.ナス8品種果実のGABA含量を比較したところ,品種間の差は大きいものではなく,平均値は果実100gあたり24mgであった.60℃で加熱すれば,果実中のGABA含量が増加し,グルタミン酸塩を外部から補って加熱することにより,GABA含量を倍増することができた.GABAを含む野菜として,ナスの消費喚起が期待される.
著者
中原 誠 都留 正人 上田 治 田路 明子
出版者
一般社団法人 日本超音波検査学会
雑誌
超音波検査技術 (ISSN:18814506)
巻号頁・発行日
vol.27, no.7, pp.477-482, 2002-12-01 (Released:2007-09-09)
参考文献数
28

PURPOSE : The purpose was consideration the measurement of pulmonary regurgitant flowvelocity by continuous-wave Doppler echocardiography. MATERIAL AND METHOD : The study population consisted of 51 patients that underwent the cardiac catheteri2ation within 10 days after the Doppler examination. In these patients, for 13 patients of right-sided pressure determination, we did linear regression analysis to differ. ence between pulmonary artery diastolic pressure and right ventricular end-diastolic pressure in the catheterization (PADP-RVEDP) versus the pulmonary artery-to-right ventricular pressure gradient at end-diastolic by continuous-wave Doppler echocardiography that were cornptrted in means of the simplified Bernoulli equation (4V2) from the pulmonary regurgitant flow velocity (PR-PG), and compared. For 46 patients of left-sided pressure determination, we did linear regression analysis to left ventricular end-diastolic pressure in the catheterization (LVEDP) versus PR-PG. Moreover, we were classified angina pectoris (group AP), acute myocardial infarction (group AMI). congestive heart failure (group CHF) in 51 patients. and we considered for significant difference at PR-PG of the groups.RESULT : PADP-RVEDP versus PR-PG had the correlation (y=0.96x+2.2, r=0.88, p<O.0001). LVEDPversus PR-PG had the correlation (y=0.73x-7.0, r=0.83, p<0.0001; x=1.37y+9.6). For difference of PR-PG at the each team, group AP were 3.4±1.0mmHg, group AMI were 6.4±2.5mmHg. and group CHF were 15.1±4.3mmHg, there were significant difference at al: groups. CONCLUSION : The pulmonary artery-to-right ventricular pressure gradient at end-diastolic was able to get noninvasively by continuous-wave Doppler echocardiography, because PADPRVEDP and PR-PG approximated to each other. It seemed that adding lOmmHg to PR-PG were valid at estimation of LVEDP. Normal PR-PG were understood 5mmllg or less, and CHF were high PR-PG. It was useful for diagnosis of CHF that pulmonary regurgitant flow velocity was measured by continuous-wave Doppler echocardiography.
著者
Emiko Kurisaki Masao Sato Sigeyuki Asano Hirobumi Gunji Mamoru Mochizuki Hajime Odajima Haruki Wakasa Hiroshi Satoh Chiho Watanabe Kouichi Hiraiwa
出版者
The Pharmaceutical Society of Japan
雑誌
Journal of Health Science (ISSN:13449702)
巻号頁・発行日
vol.45, no.6, pp.309-317, 1999-12-31 (Released:2008-04-14)
参考文献数
20
被引用文献数
2 1

It has been assumed that "smelter disease" is caused by sulfuric dioxide. A typical episode resulting in "smelter disease" occurred in Fukushima, Japan. Twenty-seven workers became ill and eventually three of them died. The concentration of mercury (Hg) was found to be higher in all tissues and blood of the three victims than in those of normal Japanese, although the concentrations of zinc, cadmium, copper and lead in all tissues examined were within the normal range. The clinical course after the incident and autopsy findings clarified the cause of death to be acute Hg fume poisoning. To determine the histological localization of Hg and metallothionein (MT), Hg staining by the photo-emulsion method and immunostaining using anti-MT antibody were carried out. Numerous Hg granules were observed in the epithelia of the proximal tubules of the renal cortex using the photo-emulsion histochemical method. The liver of victims contained a few Hg granules in the hepatic cellular cytoplasm and sinusoid. Immunostaining of the kidney showed a strong positive reaction with anti-MT in the proximal tubules outside the medulla. The presence of Hg-bound MT in the kidneys of the victims was confirmed by gel chromatography. This is the first evidence of Hg-MT in the tissues of humans with acute Hg fume poisoning. Mercury might induce the synthesis of MT in human tissues. In addition, fractionation of the supernatants on gel chromatography revealed that most of the Hg in the kidney and lung of the patient who had the most severe renal and lung damage and who was the first of the three victims to die was distributed in high molecular weight protein fractions (HMW) and a small portion of Hg was bound to MT. These findings suggest that the amount of synthesized MT in tissues was not sufficient for MT to bind to Hg. The amount of Hg absorbed into tissues may be too large for MT to protect tissues, and thereby Hg may be bound to HMW.