著者
上野 貢嗣 末宗 洋 佐伯 清太郎 酒井 浄
出版者
The Pharmaceutical Society of Japan
雑誌
Chemical and Pharmaceutical Bulletin (ISSN:00092363)
巻号頁・発行日
vol.33, no.9, pp.4021-4025, 1985-09-25 (Released:2008-03-31)
参考文献数
13
被引用文献数
10 15

The conversion of naturally abundant (+)-limonen-10-ol (2) into the synthetic intermediate (3) for brefeldin A is described. The cis-3, 4-disubstituted cyclopentanone (4), which was easily obtained from 2 by Rh (I)-catalyzed cyclization reaction via the 4-pentenal derivative, could be converted to the target compound 3 via the appropriate modification of substituents on the five-membered ring.
著者
末宗 洋 岩崎 源司 上野 貢嗣 酒井 浄
出版者
The Pharmaceutical Society of Japan
雑誌
Chemical and Pharmaceutical Bulletin (ISSN:00092363)
巻号頁・発行日
vol.32, no.11, pp.4632-4636, 1984-11-25 (Released:2008-03-31)
参考文献数
9
被引用文献数
2 5

The chemical conversion of (+)-limonene (1) and (-)-perillyl alcohol (10) into 9-substituted p-mentha-1, 8 (10)-diene derivatives is described. The lithiated species of 1 and 10 were easily obtained in good yields, by using sec-butyl lithium in N, N, N', N'-tetramethylethylenediamine. The reaction of the lithiated species (A and B) with various electrophiles was completed within 1-2 h to give 9-substituted p-mentha-1, 8 (10)-diene derivatives. The stereochemistry of the chiral center of the starting material was retained in the products. 9-Hydroxy-p-mentha-1, 8 (10)-diene (8) was also obtained by another short sequence of steps. Oxidation of the phenylthio derivative (7) gave the sulfoxide (9). Treatment of 9 with trimethyl phosphite afforded 8.
著者
上野 貢嗣 末宗 洋 酒井 浄
出版者
The Pharmaceutical Society of Japan
雑誌
Chemical and Pharmaceutical Bulletin (ISSN:00092363)
巻号頁・発行日
vol.32, no.9, pp.3768-3769, 1984-09-25 (Released:2008-03-31)
参考文献数
3
被引用文献数
4 12

The key intermediate (11) for the synthesis of carbacyclin (1) was synthesized by the application of a new method for stereoselective five-membered ring formation using Wilkinson complex.
著者
MORI YASUSHIGE SHIOMI TOSHIYA KATADA NAOKI MINAMIDE HIROSHI IINOYA KOICHI
出版者
公益社団法人 化学工学会
雑誌
Journal of Chemical Engineering of Japan (ISSN:00219592)
巻号頁・発行日
vol.15, no.3, pp.211-216, 1982
被引用文献数
7

The effects of a corona precharger on the performance of a fabric filter were studied experimentally in the air with controlled humidity. Test dusts, fine calcium carbonate and fly ash, were precharged and then introduced to a test fabric. The test fabrics were felt, spun staple and filament woven fabrics.<br> When charged dust is collected on a test fabric at low filtration velocity and low relative humidity, a rugged surface often appears on the charged dust layer, and pressure loss across the loaded test fabric is reduced. This electrostatic effect on pressure loss occurs not only for felt fabric but also for spun staple woven fabric, but does not appear for polyester (Tetron) and glass filament woven fabrics, because of pin-hole formation.<br> On the other hand, the collection efficiency of a fabric filter can always be improved by using a corona precharger. The collection efficiency increases with the charge-to-mass ratio of dust. Even if pin-holes are formed during the filtration, the collection efficiency can be improved using a corona precharger, without substituting a higher-performance fabric.
著者
苅山 靖 図子 浩二
出版者
一般社団法人 日本体育学会
雑誌
体育学研究 (ISSN:04846710)
巻号頁・発行日
vol.60, no.1, pp.137-150, 2015 (Released:2015-06-13)
参考文献数
22
被引用文献数
5 1

The present study attempted to develop a training model using the rebound jump (RJ) for improving stiffness during bounding (BD), focusing on joint kinetics. 17 male track and field athletes (sprinters, jumpers, and decathletes) performed the BD and RJ. Video images of their jumping motions in the sagittal plane (300 Hz) and their ground reaction force data (1,000 Hz) were recorded. Stiffness was calculated using the spring-mass model, and the joint extension and plantar flexion torques during the first half of the take-off phase and negative torque power of the 3 lower joints (ankle, knee, hip) were calculated. The foot angle at the moment of touchdown during BD was also calculated. The results were as follows: 1.  During BD and RJ, stiffness was correlated with the ankle joint torque during the first half of the take-off phase and the negative torque power about the ankle joint. 2.  The foot angle at the moment of touchdown during BD was correlated with stiffness, contact time, ankle joint torque during the first half of the take-off phase, and negative torque power of the ankle joint. 3.  Ankle joint torque and negative torque power about the ankle joint during the first half of the take-off phase in BD were correlated with those during RJ.   These results suggest that stiffness during BD and RJ are affected by ankle joint kinetics. On the basis of these results, previous studies and sports training principles, plyometric training using the RJ may be useful for improving the stiffness in BD via ankle joint kinetics.
著者
苅山 靖 図子 浩二
出版者
一般社団法人 日本体育学会
雑誌
体育学研究 (ISSN:04846710)
巻号頁・発行日
vol.61, no.2, pp.449-460, 2016 (Released:2016-12-14)
参考文献数
19
被引用文献数
2

In the present study, we aimed to (1) clarify the relationship between stiffness and take-off leg motion during bounding and (2) append the information gathered from the study to a hierarchical training model (Kariyama and Zushi 2013, 2015). Seventeen male track and field athletes (sprinters, jumpers, and decathletes) performed bounding. Jumping motions in the sagittal plane (300 Hz) and ground reaction force data (1,000 Hz) were recorded. Stiffness was calculated using the spring-mass model, and the kinematic and kinetic variables of both the take-off leg and swing leg were calculated. We found correlations between stiffness and the following parameters: vertical ground reaction force impulse during the late phase (r=−0.488), distance between the center of gravity of the body (CG) and the toe at touch down (r=−0.760), hip-toe distance at touch down and at toe off (r=−0.568 and −0.472, respectively), range of flexion at the hip joint angle (r=−0.517), range of extension at the knee joint angle (r=−0.484), negative joint work and relative work at the hip joint (r=−0.462 and −0.511, respectively), positive joint work and relative work at the knee joint (r=−0.619 and −0.534, respectively), swing-leg angle at touch down (r=−0.755), and swing-leg vertical impulse during the late phase (r=−0.535). The results we obtained suggest that take-off motion in bounding is affected by stiffness characteristics, although jump distance is not affected by stiffness (Kariyama and Zushi 2013, 2015). Previous studies (Kariyama and Zushi 2013, 2015) indicated that stiffness in bounding is affected by stiffness in rebound jumping. On the basis of our results and those of previous studies, take-off motion correlated with stiffness in bounding could be affected by rebound jump stiffness. Therefore, an understanding of the characteristics of stiffness in rebound jumping is important for training that changes the above-mentioned take-off motion in bounding.
著者
中島 俊樹
出版者
大阪大学
雑誌
奨励研究(A)
巻号頁・発行日
1994

1990年頃京都大学数理解析研究所の柏原氏により発見された結晶基底の理論と、1991年にロシアの数理物理学者フレンケルとレシェティヒンにより発見されたq-頂点作用素の理論は量子群、格子模型、共形場理論などに特に大きな影響を及ぼした。申請者は、結晶基底を記述するために柏原氏により導入された柏原代数に対しq-頂点作用素の類似物を定義しその2点関数が、いわゆる量子R行列と一致することを示した。申請者の目的としては、2点関数のみならず、Nが2より大きい場合にN点関数の具体的な記述を与えるということがあった。申請者は、まず、柏原代数に対するq-頂点作用素の双対的な描写として現れる、変形された量子群の結晶基底の構造をリー環sl_2の場合に明らかにした。そこでは、変形された量子群の結晶基底が、道空間表示としうものを用いて、最も単純な2次元アファイン結晶のテンソル積のアファイン化の無限直和の形で表されることを示した。これは、フレンケルとレシェティヒンのq-頂点作用素の理論を用いて、京都大学の神保氏らによって解析されたXXZ模型の場合の結晶基底による描写のある種の極限に相当することが分かった。これらをもとにして、N点関数の具体的な記述に対しては、R行列の積に関係したものであるという予想が立つが、これは今後の大きな課題である。R行列の解析は、現在なお世界中の多くの研究者達が追求する大きなテーマであり、量子R行列が柏原代数に付随したq-頂点作用素と深い関係をもつということは、量子R行列に新しい解釈を与えたと言え、他のR行列の解析に役立つものと期待できる。
著者
池原 研
出版者
Tokyo Geographical Society
雑誌
地学雑誌 (ISSN:0022135X)
巻号頁・発行日
vol.107, no.2, pp.234-257, 1998-04-25 (Released:2009-11-12)
参考文献数
134
被引用文献数
1 1

Marginal seas, such are located as Bering Sea, Okhotsk Sea, Japan Sea, East China Sea, South China Sea and Indonesian seas, locate along the western rim of the Pacific. They have only a small area but are regions of high biological productivity, and thus expected to play an important role on global environment. Each of them has an unique characteristics on bathymetry, water exchange between the adjacent marginal seas and/or open ocean, primary productivity and volumes of fresh water input and terrigeneous material supply. Because they connect each other and to the open ocean through the shallow straits, characteristics of water masses flowed into the marginal seas were highly influenced by global sea level fluctuations. Furthermore, climatic change affected the volume of terrigenous supply to the seas. Therefore, paleoenvironments of the marginal seas largely changed with long-term sea level changes and short-term climatic changes. Recent studies on paleoceanography of the Japan Sea and the South China Sea suggest the importance of Asian monsoon to control the oceanic environments of the marginal seas. Hemipelagic sediments with higher sedimentation rates in the marginal seas recorded paleoceanographic changes in high resolution. Multidisciplinary studies for large-diameter long piston cores from the East Asian marginal seas may provide good information for global climate changes in the late Quaternary.
出版者
日経BP社
雑誌
日経ニューメディア (ISSN:02885026)
巻号頁・発行日
no.1483, pp.15-16, 2015-10-05

スマホやタブレットも、ある程度の水準まで普及したかと思われる段階にあるが、今はMVNOを手掛ける事業者も急増しており、いわゆる「格安スマホ」が大変な存在感を示すに至った。 今ではガラケーと呼ばれる携帯電話機すら、その機能をくまなく使いこなせて…
著者
櫻井 純理 SAKURAI Junri
出版者
京都女子大学現代社会学部
雑誌
現代社会研究 (ISSN:18842623)
巻号頁・発行日
vol.11, pp.147-163, 2008-12

1990年代半ば以降、グローバル競争の激化や株主構造の変化などの影響を受け、柔軟に活用しうる有期雇用の非正規雇用者を増加させるという雇用戦略が、多くの企業で推進されてきた。その結果、職業キャリアの観点から見れば、長期にわたって企業に定着し(え)ないキャリア展開がより一般的になりつつある。労働者が所属企業に依存せず、より自律的な職業キャリア形成を行うためには、職業能力形成を支援する重層的な支えが必要になるだろう。本稿では、そのようなキャリア形成支援政策の新たな主体の一つとして、労働組合に注目する。分析の対象は、電機連合が実施している「電機産業職業アカデミー」などのキャリア形成支援政策である。この取り組みでは、キャリア開発推進者の育成、組合員に対するキャリア相談窓口の開設、教育訓練コースの産業内相互開放などが始められている。単位組織におけるキャリア開発推進者の活動促進、個別組合員への浸透などに課題を残すが、特に企業主導のキャリア形成支援策の対象外とされてきた非正規従業員や、教育訓練基盤の弱い中小企業従業員に対して、産別組合がキャリア形成支援を展開することには大きな意義がある。Since mid-1990s, traditional employment practices of Japanese companies, such as long-term employment and seniority system, have been reexamined and the ratio of non-regular workers has been rising. This trend means occupational career of workers has become more and more "boundaryless," that is, not bounded in a single company or a single job. Under such an environment, it is crucial for workers to develop their own vocational capabilities more autonomously. This urges the need for career development support systems (including vocational education and training programs), since resources and information of an individual worker are limited. This paper examines, as a case study, career development programs funded and operated by an industrial union. It is a significant attempt, though there are some problems that should be solved.
著者
藤林 献明 坂口 将太 苅山 靖 図子 浩二
出版者
一般社団法人 日本体育学会
雑誌
体育学研究 (ISSN:04846710)
巻号頁・発行日
vol.59, no.1, pp.175-188, 2014 (Released:2014-06-13)
参考文献数
15
被引用文献数
4

The present study was conducted to examine the most effective takeoff movement for the Rebound Long Jump Test (RLJ test) under high-speed conditions. This test is designed to evaluate the ability to perform the ballistic stretch-shortening cycle movement for unilateral horizontal jump events on the basis of the RLJ index (RLJ index (m/s)=Jumping distance (JD (m))/Contact time (CT (s)). Subjects jump from a 0.1-m-high step to the ground after an approach run (falling jump), followed by jumping without interruption for as far as possible (propulsive jump). Eleven male college track-and-field athletes performed the RLJ test, and the RLJ index was calculated. On the basis of the average value of the RLJ index, the athletes were assigned to an upper level group (RLJ index>mean value) or a lower level group (RLJ index<mean value), and the takeoff movement of upper level group was considered the effective takeoff movement. The results suggested that it was important to minimize the rotation angle of the body, and to use a faster rotation velocity. This was achieved by 1) increasing the movement distance and velocity in the direction of the forward movement of the swing leg in the air, 2) minimizing the rotation angle of the foot and shank segment, and increasing that of the thigh segment during the initial phase, and 3) accelerating the rotation angle of the thigh segment again and swinging the swing-leg forward and up during the latter phase. These results suggest that the RLJ test and RLJ index provide a measure of the takeoff movement technique in terms of pre-rotation moment, the mechanism of rotation of the lower limb segment, and the swing moment of the swing leg.
著者
Michiko Ichinohe Mitsuru Motoyoshi Mizuki Inaba Yasuki Uchida Mari Kaneko Reiko Matsuike Noriyoshi Shimizu
出版者
Nihon University School of Dentistry
雑誌
Journal of Oral Science (ISSN:13434934)
巻号頁・発行日
pp.17-0377, (Released:2018-10-26)
参考文献数
35
被引用文献数
19

This study investigated the stability of mini-screws placed in the median palate. The study included 25 patients (7 males, 18 females; mean age, 23.4 ± 5.6 years; age range, 15.0-34.5 years) who had mini-screws placed during orthodontic treatment at Nihon University School of Dentistry Dental Hospital. Mini-screws (diameter, 2.0 mm; length, 9.0 mm) were placed in the median palatal region; the first screw was inserted mesiodistally at the distal contact of the maxillary first molar, and the second screw was placed 6-9 mm mesial to the first screw. Immediately after placement, the placement sites were carefully examined with cone-beam computed tomography and a Periotest device. Screw stability was not related to perforation of the nasal cavity, patient age, or patient sex. The success rate was significantly higher in patients with screw-suture distances of 1.5-2.7 mm than in those with distances of 0-1.4 mm. Moreover, mini-screws could be stabilized when palatal cortical bone thickness was ≥1.5 mm. The success rate was significantly higher in the group with insertion depths of ≥4.5 mm. These results indicate that primary stability of mini-screws requires sufficient cortical bone thickness, insertion depth, and screw-suture distance.