26 results on '"M. Yusa"'
Search Results
2. Effects of using LED supplementary lighting to improve photosynthesis on growth and yield of strawberry forcing culture
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Y. Honma, Y. Isigami, Wataru Sugeno, M. Yusa, Y. Iwasaki, S. Hikosaka, T. Yoneda, N. Goto, E. Goto, and H. Suzuki
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0106 biological sciences ,Greenhouse ,04 agricultural and veterinary sciences ,Horticulture ,Photosynthesis ,01 natural sciences ,law.invention ,LED lamp ,Dry weight ,law ,Yield (wine) ,040103 agronomy & agriculture ,0401 agriculture, forestry, and fisheries ,Environmental science ,Dry matter ,Cultivar ,010606 plant biology & botany ,Light-emitting diode - Abstract
Most strawberry fruits in Japan are produced under forced-production culture, using June-bearing cultivars. Strawberry plants are transplanted in a heated greenhouse in autumn and the normal harvest period is from late November to June. Insufficient solar radiation for fruit loading during the winter sometimes causes a decline in growth and yield. Therefore, we investigated the effects of supplementing natural light with artificial lights using light-emitting diodes (LEDs). The experiment was conducted in a greenhouse (2400 m(2) in area) located in Yamamoto town, Miyagi prefecture, Japan (37.961°N, 140.877°E). Strawberry plants were transplanted in an elevated bed. We ran two experiments: experiment 1 was on light quality [photosynthetic photon flux density (PPFD) ratio of red light to blue light], while experiment 2 examined various lamp positions relative to the plants. In experiment 1, strawberry plants were exposed to three different qualities of light (red-to-blue ratios of 2:1, 3:1, and 4:1) with LED lamps (peak blue wavelength 450 nm, peak red wavelength 660 nm, SFL 120 BR-ERx). In experiment 2, LED lamps of two light qualities (red-to-blue ratios of 3:1 and 4:1) were installed in three different positions (above, in the middle, and at the bottom of treatment containers). Yields increased in almost all supplementary-light treatments relative to controls in both experiments. In experiment 1, the yield was higher when the PPFD ratio was 3:1 or 4:1 than when it was when 2:1. In experiment 2, strawberry yield increased by about 10% relative to the control, but no significant difference was observed among light positions or light quality. In addition, no increase in total dry weight was observed as a result of supplemental lighting, but the fruit distribution ratio (fruit dry matter/total dry matter) increased. It is possible that morphological changes caused by supplemental LED lighting led to the increase in fruit yield.
- Published
- 2018
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3. Development of three-dimensional shape measurement technology for strawberries
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N. Goto, M. Yusa, M. Takahashi, Osamu Koike, Hiroki Umeda, Wataru Sugeno, Y. Honma, Shiori Takayama, H. Kano, and Y. Iwasaki
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Temperature control ,Growth data ,fungi ,010401 analytical chemistry ,food and beverages ,Greenhouse ,020206 networking & telecommunications ,Growth control ,02 engineering and technology ,Agricultural engineering ,Horticulture ,Fragaria ,01 natural sciences ,0104 chemical sciences ,Layered structure ,Three dimensional shape ,Environmental measurement ,0202 electrical engineering, electronic engineering, information engineering ,Environmental science - Abstract
Temperature control, fertilization management, and long-day treatments are performed to achieve optimal strawberry (Fragaria × ananassa Duch.) growth control. To date, the efficiency of the control of these parameters relies on visual assessment by the producers who evaluate the plants' status, or on growth surveys performed weekly. Therefore, to perform stable advanced production control, even for less-experienced producers, it is necessary to monitor the growth data of the plant continuously. In this study, we acquired strawberry growth data such as plant height and leaf area using Kinect for Windows v1, a three-dimensional shape measurement instrument, and examined whether it could be used for cultivation management. Kinect accurately measured the height of the strawberry plant. The leaf area measured using Kinect was smaller than the actual measured value. Kinect and environmental measurement equipment that were set up in a large-scale horticultural facility detected variations in growth of strawberry plants and environment data. At each measured location, there was a difference in the amount of solar radiation, and differences in plant height and the layered structure of the leaf area were detected. The results indicate that Kinect can acquire information regarding strawberry growth that are necessary for environmental control over time and may detect variation in strawberry growth due to environmental differences in the greenhouse.
- Published
- 2018
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4. Manik angkeran storytelling based on android mobile tap gameplay
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T Herawan, I D G A Pandawana, I M M Yusa, and I N A S Putra
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Structure (mathematical logic) ,History ,Multimedia ,Character (computing) ,Computer science ,media_common.quotation_subject ,ComputingMilieux_PERSONALCOMPUTING ,Display resolution ,Black-box testing ,computer.software_genre ,Computer Science Applications ,Education ,Test (assessment) ,Presentation ,Android (operating system) ,computer ,Storytelling ,media_common - Abstract
This research objective was to structure a presentation of a Balinese popular folk tale as an educational strategy through a mobile game with easy-to-play gameplay. This study had 3 (three) main objectives: (1) building the Manik Angkeran story, which is the famous folk tale circulating in Balinese society, Indonesia; (2) realizing the Manik Angkeran game that highlights Balinese characteristics; (3) implementing easy-to-play gameplay. In developing the original story of Manik Angkeran, the strategies carried out were: (1) building a new story with the main character, Manik Angkeran; (2) highlighting Balinese characteristics in character design, game background, and background music in fighting scenes; (3) chosing tap-mode game considering the simplicity and efficiency. The result of this study was Manik Angkeran Game with Tap Game genre based on Android. The game requires players to tap on the screen to move Manik Angkeran, with a mission to defeat the enemy/monster to collect gold coins (Pis Bolong Mas). Later, these coins can be used to buy building materials, which will be used to build dormitories (Pesraman). The test results using the BlackBox Testing method showed that the functionality of the navigation buttons and the entire functions of the game were running well as desired. For the results of testing the game on several different screen resolutions, showed that the display of this game was able to adjust on different screen resolutions and the image display remains sharp. This game was also capable to run on a minimum Android device v.3.0 HoneyComb, until the latest version at this time is v.9.0 Pie. Research disclosure starts with the Introduction, which reveals the background and purpose of the study. Furthermore, the discussion swooped over to the research method used. The process of pre-production, production to post-production was he model or technique used in making games. The results revealed the evaluation of the black box to test the readiness of the system.
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- 2021
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5. Designing augmented reality sibi sign language as a learning media
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P W Aditama, P S U Putra, I M M Yusa, and I N T A Putra
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History ,Computer Science Applications ,Education - Abstract
Sign language is language used by deaf people to exchange information. Indonesia has two sign languages used in its application, namely SIBI and BISINDO. SIBI is an adaptation of the American Sign Language which is currently being applied in a special school (SLB) environment. To provide support in learning SIBI sign language in technological advances, the design of Augmented Reality to introduce the letters SIBI will help in the learning process. The black box test results showed all the features and functions of the application can run well. In observing the response time when scanning markers using the Xiaomi PocoF1 marker on the letters SIBI, it had an average time of 6.05 seconds. Observation of the scan distance of the SIBI letter, the average scan distance of the marker can be scanned at a distance of 5 cm to 50 cm.
- Published
- 2021
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6. The Digital Twin Technology: A Scoping Review of Characterization and Implementation Through Business IT Perspectives
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Hein Ko Ko Htet, Indrianawati Usman, and M. Yusak Anshori
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Digital twin ,characterization ,implementation ,application ,scoping review ,Business ,HF5001-6182 - Abstract
Digital twin is a revolutionizing technology. It involves sophisticated models such as real-time data, history data, simulation, machine learning, sensor updates which can reflect almost every detail of the physical objects, procedures, and services. Digital twin technology would be replicated the physical world into a virtual world in the future. Digital twin technology is considered state-of-the-art, but full implementation has yet to occur due to technical challenges and delays. The researchers have to create all the unique and specialized components of the thing or system and collect and combine a massive amount of diverse data. Since, many researchers and employees from some industries such as architecture, health care and engineering are still not completely understood about the technologies and tools used in digital twin technology. This paper illustrates scoping reviews of the characterization, implementation processes of digital twin in business information technology within 5 years period from 2018 to 2022. Furthermore, Digital Twin current applications in three different territories are also outlined in this paper. The purpose of the paper is to understand systematically about the digital twin technology process in different fields.
- Published
- 2023
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7. PELATIHAN PENGOLAHAN TEPUNG AMPAS KELAPA MENJADI BISKUIT DI DESA ADAT PENGLIPURAN, KABUPATEN BANGLI
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I W. R. Widarta, I K. Suter, N M. Yusa, A.A. I.S. Wiadnyani, NN. Puspa wati, and K. A. Nocianitri
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lcsh:A ,lcsh:General Works - Abstract
Penglipuran village located on Bangli sub-district in Bangli regency. Coconut is one of agricultural commoditiesin this village. Rural community in Penglipuran village are inexperienced how to make cookies by coconut-byproduct. The aim of these activities was to introduce cookies production by coconut-by product to increase theadded.value The Community Service was carried out by 2 methods, namely: first, information and discussionwith rural community about cookies. Second, cookies production training. There are 20 partisipant in this activity,including delegation of female farmer groups. They have given positif response for these valuable activity.
- Published
- 2013
8. Abstracts of Posters Presentations
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T. E. Bureau, G. S. Khush, S. R. Wessler, A. S. Reddy, F. Cordesse, M. Delseny, A. Kanno, K. Hattori, A. Hirai, Y. Sano, R. Sano, H. -Y. Hirano, T. Ishii, T. Terachi, N. Mori, K. Tsunewaki, J. P. Gustafson, C. L. Mclntyre, J. E. Dillé, Jinshui Yang, Koulin Ge, Yunzhu Wang, C. C. Tan, Shanbao Chen, Xiaolan Duan, Changsheng Yan, Guandang Xing, Yan Zhang, B. Wang, H. G. Zheng, Q. F. Xu, J. Z. Wang, D. D. Li, S. T. Li, Z. T. Zhang, O. Panaud, G. Magpantay, E. Galinato, D. Mahapatra, L. A. Sitch, S. Yoshimura, A. Yoshimura, N. Iwata, A. Saito, N. Kishimoto, M. Kawase, M. Nakagahra, M. Yano, N. Mitsukawa, K. Tanaka, E. C. Cocking, S. L. Kothari, H. Zhang, P. T. Lynch, P. S. Eyles, E. L. Rech, M. R. Davey, I. H. Slamet, R. P. Finch, K. -I. Mori, T. Kinoshita, A. Tanaka, S. Tano, A. B. Mendoza, Y. Futsuhara, Y. Takeoka, Wang Zixuan, E. Guiderdoni, P. B. Kavi Kishor, G. M. Reddy, N. R. Yadav, D. R. Sharma, J. B. Chowdhury, Jiadao Wu, Zhongxiang Huang, Zuling Liu, Leya Zheng, Jianbo Yan, Yan Chen, K. Fukui, K. Iijima, H. Fukuoka, Y. Kageyama, K. Yamamoto, G. Takeda, I. Imuta, F. Kikuchi, I. Watanabe, M. Yusa, O. Kamijima, H. Kitano, Y. Nagato, S. Kikuchi, H. Satoh, I. Takamure, S. Oba, M. Ichii, Shui Shan Li, H. Hasegawa, A. Matsuzaki, T. Takano, T. Kato, D. A. Vaughan, K. K. Jena, D. S. Multani, A. Ghesquiere, P. Barbier, A. Ishihama, A. A. Flores-Nimedez, K. Dörffling, B. S. Vergara, T. Nagamine, K. Watanabe, T. Nishimura, T. Ogawa, R. E. Tabien, T. Yamamoto, G. A. Busto, R. Ikeda, C. Hamamatsu, Y. -I. Sato, H. Morishima, J. Abadassi, J. C. Glaszmann, J. L. Notteghem, B. Courtois, O. Mohamad, M. Z. Abdullah, O. Othman, K. Hadzim, J. Mahmud, O. Ramli, J. L. Minocha, J. S. Sidhu, R. K. Gupta, H. Sano, S. Youssefian, I. Kamada, M. Itoh, M. T. Mei, Q. F. Zuo, Y. G. Lu, H. Deng, T. C. Yang, T. Tanisaka, H. Yamagata, B. Mishra, J. P. Tilquin, J. P. Chapeaux, J. F. Detry, Yi-Shin Chen, Chia-Yi Aes, Bui Chi Buu, Thai Thi Hanh, Minghong Gu, Aiqing You, Xuebiao Pan, Zu-bai Qi, Ye-Tong Cai, Bao-jian Li, T. Nomura, K. Yonezawa, T. Sato, N. Watanabe, R. B. Austin, C. L. Morgan, Y. Okumoto, Y. Shimamoto, Shih-Cheng Lin, K. Hinata, M. Oka, M. P. Pandey, D. V. Seshu, M. Akbar, Moo Young Eun, Yong Gu Cho, Yong Kwon Kim, Tae Young Chung, Gun-Sik Chung, Sae-Jun Yang, Byeong-Geun Oh, G. L. Shrestha, S. Mallik, A. M. Aguilar, G. Kochert, and I. Nakamura
- Published
- 2008
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9. [Evaluation of clinical utility of 111In-DTPA-IgG scintigraphy in the detection of inflammation/infection--a report of multicenter phase III clinical trials]
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A, Kubo, K, Tobe, K, Suzuki, K, Itoh, K, Endo, K, Uno, Y, Mashima, S, Maruoka, N, Tonami, H, Sakahara, N, Otsuka, K, Masuda, C, Miyazaki, M, Yusa, H, Gotoh, and K, Shimada
- Subjects
Inflammation ,Male ,Immunoglobulin G ,Indium Radioisotopes ,Humans ,Female ,Middle Aged ,Pentetic Acid ,Radiopharmaceuticals ,Infections ,Radionuclide Imaging ,Sensitivity and Specificity ,Aged - Abstract
This is the report of phase III study to evaluate the safety and utility of 111In-DTPA-IgG in patients with strongly suspected inflammation/infection. One hundred and forty five patients with suspected sites of inflammation/infection were enrolled in the study. Only a few adverse experiences in one patient were reported, which were interpreted as having a possible relationship to the agent. A total of 171 suspected sites (12 in head and neck, 39 in thorax, 44 in abdomen and pelvis, 62 in musculoskeletal system, and 14 in other regions) were evaluated by investigators at each institute. Out of 171 sites, 18 were determined to be unevaluable, and 12 false negative and 5 false positive cases were observed. Overall sensitivity and specificity was 89.8% and 85.7%, respectively, and the agent proved to be effective in detecting lesions anywhere throughout the body. The analysis of data from this Phase III study indicates that 111In-DTPA-IgG is well-tolerated in patients and effective in determining focal sites of inflammation/infection although the physiological accumulation in some tissues such as the sinus or liver and possible excretion into the gastrointestinal tract may make it difficult to localize lesions.
- Published
- 1997
10. [Ligation of the crura penis: surgical treatment for venous impotence]
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M, Tamura, Y, Kawanishi, A, Furukawa, A, Numata, M, Yusa, and A, Imagawa
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Adult ,Male ,Erectile Dysfunction ,Penile Erection ,Humans ,Middle Aged ,Aged ,Penis ,Veins - Abstract
Recently it has become clear that venous impotents account for a high percentage of all impotents. In venous impotents a decrease in outflow resistance is seen. We have aggressively performed operations on venous impotents to produce artificial outflow resistance. In this study, we performed ligations of the crura penis in 6 venous impotents. Five patients recovered from erectile dysfunction and 1 patient showed papaverine-induced full erection. There were few severe complications and the duration of operation was very short. This operation is thought to be a simple and effective treatment for venous impotence.
- Published
- 1990
11. Is the denatured state of protein homogeneous in terms of the time scale of conformational interconversion
- Author
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Yasuo Noda, M. Yusa, Hideki Tachibana, and Shin-ichi Segawa
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Crystallography ,Materials science ,Scale (ratio) ,Homogeneous ,Chemical physics ,State (functional analysis) - Published
- 2005
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12. An Examination of Exposure Dose Reduction by the Additional Filtration of CT
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R. Itoh, T. Murakami, M. Takano, M. Yusa, Kenji Suzuki, S. Seino, T. Katakura, and T. Yusa
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law ,Chemistry ,business.industry ,Dose reduction ,General Medicine ,Nuclear medicine ,business ,Filtration ,law.invention - Published
- 1997
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13. Compaction of flocculated material
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C. Igarashi and M. Yusa
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Plunger ,Flocculation ,Environmental Engineering ,Materials science ,Chromatography ,Ecological Modeling ,Compaction ,Pollution ,Cylinder (engine) ,law.invention ,Chemical engineering ,law ,Pellet ,Sewage sludge treatment ,Coaxial ,Suspension (vehicle) ,Waste Management and Disposal ,Water Science and Technology ,Civil and Structural Engineering - Abstract
The device used in the experiment consists of a flat-bottomed graduated cylinder and a coaxial plunger. A suspension flocculated with chemicals is sedimented after being mechanically worked within the graduate, and the supernatant water is removed with a pipette. The plunger is thrust into the sludge at a constant speed. The sludge is not only compressed but also flows into the annular gap between the plunger and the graduate, resulting in liberation of water. The liberated water is accumulated on the sludge in the annular gap. The “sludge bulkiness” β is used to describe the volumetric proportion of sludge and solids in it. The sludge bulkiness values before and after the “plunger test” are denoted as β i and β f , respectively. The values of β i and β j have been explored as a function of the time of the mechanical working. As a result, there is a definite time lag between the maximum value of β i and the minimum value of β f . The minimum value of β j is obtained when the sludge consists of “pelleted flocs”.
- Published
- 1984
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14. Studies on the Treatment of Slurry
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H. Sakamoto, J. Shimoiizaka, M. Yusa, K. Sudo, and K. Nakamura
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Embryology ,Materials science ,Slurry ,Cell Biology ,Anatomy ,Pulp and paper industry ,Developmental Biology - Abstract
本研究は, 容易に沈降濃縮できない泥漿を対象とし, これに少量の高分子凝集剤を添加し機械的回転を与えて肉眼的には認められない程度の微細なペレット状凝集粒子を作ることによりろ過特性の改善をしようとするものである。本研究によりろ過速度が増大すると共に, ケーキの湿分も低下することが明らかになった。
- Published
- 1971
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15. Pengaruh Kompetensi, Motivasi, Kepemimpinan, dan Lingkungan Kerja Terhadap Manajemen Stres dan Kinerja Karyawan pada Dinas
- Author
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Udisubakti Ciptomulyono, M. Yusak Anshori, and Aldo Fodyansa
- Subjects
competence ,motivation ,leadership ,work environment ,stress management ,employee performance ,Business ,HF5001-6182 - Abstract
This research conducted by background of “X” Agency East Java Province as one of the biggest agencies with the highest number of employees in East Java and has a very broad work scope because it is a merged from some sub agencies before. Various social issues of East Java governance in 2015 became the main task of “X” Agency East Java Province to be completed. In order to fulfill their roles, responsibilities, and functions as the government agencies that serve people, all employees in “X” Agency East Java Province are required to be able to have optimal performance. This study aimed to analyze factors that can affect the performance of employees so can provide feedback to “X” Agency East Java Province in terms of corrective measures to be taken in the future in order to always have optimal performance. This study used partial least squares analysis through SmartPLS 3.0 program. Independent variables analyzed in this study were competence, motivation, leadership, and work environment towards dependent variable thus stress management and employee performance. Random sampling taken at 160 employees of “X” Agency East Java Province. Data collection process conducted by questionnaires distribution. The result showed that only competence and work environment has a significant effects on stress management, while stress management itself and competence also have a significant effects on employee performance. Other variables that is motivation and leadership does not have a significant effects on the dependent variable stress management and employee performance. Suggestion for improvement are given to the “X” Agency East Java Province at the end of the study in order to further improve their performance.
- Published
- 2017
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16. Implementasi Lean Manufacturing Car Body Studi Kasus di PT Inka (Persero)
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Raden Denny Herwindo, Udisubakti Ciptomulyono, and M. Yusak Anshori
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Lean manufacturing ,VSM ,RCA ,root cause analysis ,value stream mapping ,waste ,Business ,HF5001-6182 - Abstract
Means of rail transport in developing countries became major commodities integrated transportation solutions, rail transport is efficient for the number of mass transit. It opens the market potential procurement of railway facilities by PT INKA, both in the domestic market or abroad. As a make to order-based manufacturing started in 2008 with a lot of project exports to developing countries, such as Bangladesh, Malaysia and Singapore. PT INKA export market opportunities potentially enough ahead to 2020, but delays in delivery schedule of the train is the main problem is always the case in recent years. Methods of lean manufacturing focuses on identifying and eliminating activities that do not have added value, the first step was the elaboration of a method VSM (value stream mapping) as tools to determine mapping the entire process of production, then weighted 7 waste via a questionnaire and the results of the ranking of waste are translated through the method of RCA (root cause analysis) and then do an analysis matrix mapping tools with value stream analysis tools (VALSAT) and there is a value added value ratio of 60.17% of the 84 activities of production and the total cycle time 29,905 minutes. As a tool to mitigate the improvement of waste carried out the translation of failure mode and effect analysis (FMEA) and of design improvements value stream mapping - future state map can raise the value added ratio to 67.16% consists of 74 processes and production activities 26 795 minutes total cycle time. So this research can increase the productivity and know the activities that do not add value (Non Value Added) in line car body processes and eliminating waste (Waste) as one of the causes of train delays in delivery.
- Published
- 2017
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17. Pengaruh Motivasi Intrinsik dan Ekstrinsik Terhadap Kinerja Karyawan Divisi Network Operations PT XYZ Surabaya
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Moh. Abdul Ghofur, Bambang Syairudin, and M. Yusak Anshori
- Subjects
daily work reports ,intrinsic motivation ,extrinsic motivation ,employee performance ,Business ,HF5001-6182 - Abstract
There are five telecommunications operators in Indonesia, including Telkomsel, Indosat Ooredoo, XL Axiata, Tri (3), and Smart Telecom compete to bring the latest 4G technologies as part of corporate strategy into the forefront of mobile communications services. PT XYZ is a multinational company engaged in the field of telecommunications services. The management of PT XYZ Surabaya targeting employee reporting can be increased up to 100%. This study aims to determine how much influence the intrinsic and extrinsic motivation on employee performance PT XYZ Surabaya with SEM-PLS method. The results of this study are extrinsic motivation variable that is most dominant supervision directly affects the performance of employees. Besides the variable performance of employees able to be explained by 0.655 or 65.5% by variable intrinsic motivation and extrinsic motivation, while 34.5% is explained by other variables.
- Published
- 2017
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18. Pengaruh Lingkungan, Fasilitas, dan Insentif Terhadap Motivasi dan Kinerja Karyawan PT PAL Indonesia Divisi Rekayasa Umum
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Shintya Vira Istiqfari, Bambang Syairudin, and M. Yusak Anshori
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environment, facilities ,incentives ,motivation ,and performance ,Business ,HF5001-6182 - Abstract
PT PAL Indonesia is one of the largest company engaged in the maritime field, the existence of competition at national and international very tight then the company should always have a good strategy in the field of technology and human resources, so in this study focused on the performance of employees in the engineering division general. The study is aim to determine the effect of environment, facilities, incentives and motivation to employees performance in PT PAL Indonesia general engineering division. Using the technique of analysis Structural Equation Modelling (SEM) - Partial Least Square (PLS). The result of this study is performance variable explained by environmental, facilities, incentives and motivation only 64,4%, while 35,6% explained by other variables, significant effect on the environment of motivation with the value of t statistic 3,412, significant effect on environment of performance variable with the value of t statistic 1,97, and significant effect on motivation of performance variable with the value of t statistic 1,82.
- Published
- 2017
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19. Resistivity and Physical characteristic of Meranti's Peat.
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M Yusa, S Sutikno, D Lita, S Ari, Evelyn, D Fadli, and P Dian
- Published
- 2019
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20. Impact of uterine displacement on T 2 -weighted image quality in the female pelvic MRI.
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Ishikawa H, Monma M, Ishimori Y, Saotome K, Ishii S, Sekino H, Yamakuni R, Kakamu T, Oura D, Takahashi Y, Seino S, Yusa M, and Ito H
- Abstract
Despite the importance of T
2 -weighted image in clinical practice, artifacts can significantly degrade image quality and affect diagnosis. This study quantitatively analyzed uterine displacement and surveyed the relationship between the image quality of fast-spin-echo-T2 -weighted image of the female pelvis and quantitative value of uterine displacement. Overall, 147 women (mean age, 46.0 ± 12.8 years; age range, 22-84 years) who had undergone pelvic magnetic resonance imaging examination using a 3 T- magnetic resonance imaging scanner were included. Two radiologists performed a visual assessment of the fast-spin-echo-T2 -weighted image in the sagittal plane in terms of ghosts and motion blur, and classified the image quality into the following three groups: poor, moderate, and excellent. Uterine displacement on half-Fourier acquisition single-shot turbo spin-echo-cine images was calculated, and the maximum amplitude of uterine displacement and summation of uterine displacement were calculated from the displacement map images. The Kruskal-Wallis and Steel-Dwass tests were performed to compare the maximum amplitude of uterine displacement and summation of uterine displacement among the three groups. Poor, moderate, and excellent image qualities were observed in 48, 71, and 28 patients, respectively. The quality of fast-spin-echo-T2 -weighted images degraded statistically significantly with P < 0.01 as the maximum amplitude of uterine displacement increased. The summation of uterine displacement in the poor and moderate groups had greater statistical significance with P < 0.01 than that in the excellent group., Competing Interests: Declarations. Conflicts of interest: The authors have no potential conflicts of interest to declare. Ethics approval: This was a cross-sectional retrospective study. The study protocol was approved by the Institutional Ethics Committee (file number: REC2023-067). Considering data anonymization and retrospective study design, the requirement for written informed consent was waived. All procedures involving human participants adhered to the ethical standards of the institutional and/or national research committee and the 1964 Helsinki Declaration and its subsequent amendments or comparable ethical standards., (© 2024. The Author(s), under exclusive licence to Japanese Society of Radiological Technology and Japan Society of Medical Physics.)- Published
- 2024
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21. Facile Synthesis of Kwakhurin, a Marker Compound of Pueraria mirifica and Its Quantitative NMR Analysis for Standardization as a Reagent.
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Tsuji G, Yusa M, Masada S, Yokoo H, Hosoe J, Hakamatsuka T, Demizu Y, and Uchiyama N
- Subjects
- Dietary Supplements standards, Drug Design, Isoflavones chemistry, Isoflavones standards, Plant Roots chemistry, Plant Roots metabolism, Pueraria metabolism, Reference Standards, Isoflavones chemical synthesis, Magnetic Resonance Spectroscopy standards, Pueraria chemistry
- Abstract
The side effects of kwao keur dietary supplements (obtained from the tuberous root of Pueraria mirifica) have recently been reported by the Ministry of Health, Labour and Welfare, Japan. To control the quality of kwao keur products, its ingredients need to be maintained by characteristic marker compounds, such as miroestrol, deoxymiroestrol, and kwakhurin (KWA). In this study, we described the facile synthesis of KWA, a marker compound of P. mirifica. Our revised synthetic method produced KWA with shorter steps and higher yield than the reported method. Furthermore, the absolute purity of KWA was determined by quantitative NMR analysis for standardization as a reagent, and its purity was 92.62 ± 0.12%.
- Published
- 2020
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22. Photoreduction of quinones by thiols sensitized by phthalocyanines.
- Author
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Yusa M and Nagata T
- Abstract
Under the irradiation of red light (690 nm), quinones were converted to hydroquinones by thiols in the presence of metallophthalocyanines. The reaction proceeded via the charge separation between the triplet state of phthalocyanine and the quinone. The product determining step was protonation of the quinone anion radical, as indicated by the fact that the reaction was accelerated by the use of more acidic thiols or addition of an acid.
- Published
- 2017
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23. Glycerol-induced folding of unstructured disulfide-deficient lysozyme into a native-like conformation.
- Author
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Sakamoto K, Hirai K, Kitamura Y, Yamazaki K, Yusa M, Tokunaga N, Doi G, Noda Y, Tachibana H, and Segawa S
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- Animals, Chickens, Deuterium Oxide, Disulfides chemistry, Genetic Variation, Glycerol pharmacology, In Vitro Techniques, Models, Molecular, Muramidase genetics, Nuclear Magnetic Resonance, Biomolecular, Protein Conformation drug effects, Protein Folding drug effects, Recombinant Proteins chemistry, Recombinant Proteins genetics, Muramidase chemistry
- Abstract
2SS[6-127,64-80] variant of lysozyme which has two disulfide bridges, Cys6-Cys127 and Cys64-Cys80, and lacks the other two disulfide bridges, Cys30-Cys115 and Cys76-Cys94, was quite unstructured in water, but a part of the polypeptide chain was gradually frozen into a native-like conformation with increasing glycerol concentration. It was monitored from the protection factors of amide hydrogens against H/D exchange. In solution containing various concentrations of glycerol, H/D exchange reactions were carried out at pH* 3.0 and 4 degrees C. Then, (1)H-(15)N-HSQC spectra of partially deuterated protein were measured in a quenching buffer for H/D exchange (95% DMSO/5% D(2)O mixture at pH* 5.5 adjusted with dichloroacetate). In a solution of 10% glycerol, the protection factors were nearly equal to 10 at most of residues. With increasing glycerol concentration, some selected regions were further protected, and their protection factors reached about a 1000 in 30% glycerol solution. The highly protected residues were included in A-, B-, and C-helices and beta3-strand, and especially centered on Ile 55 and Leu 56. In 2SS[6-127,64-80], long-range interactions were recovered due to the preferential hydration by glycerol in the hydrophobic box of the alpha-domain. Glycerol-induced recovering of the native-like structure is discussed from the viewpoint of molten globules growing with the protein folding. (c) 2009 Wiley Periodicals, Inc. Biopolymers 91: 665-675, 2009.This article was originally published online as an accepted preprint. The "Published Online" date corresponds to the preprint version. You can request a copy of the preprint by emailing the Biopolymers editorial office at biopolymers@wiley.com.
- Published
- 2009
- Full Text
- View/download PDF
24. [Improved care of foot ulcer using foot pressure measurement and foot care method sheet].
- Author
-
Tinen T, Iha H, Miyagi C, Yusa M, Taira H, and Matsumoto K
- Subjects
- Aged, Aged, 80 and over, Foot physiopathology, Humans, Patient Care Planning, Biomechanical Phenomena methods, Foot Ulcer etiology, Foot Ulcer therapy, Leprosy complications, Podiatry methods, Pressure
- Abstract
At this sanatorium, the number of foot bottom ulcer patients was 13 and the tenure of the foot bottom ulcer was average 11 years. According to the treatment that was not unified, we thought about the cause of the prolongation. Therefore, we made evaluation and care method sheet ("foot care sheet") of the ulcer for the unification. We used the foot pressure measurement system (F-scan) to 4 patients for the pressure dispersion of the ulcer. We devised the protection law of the ulcer, and an ulcer did not require pressure more than 5 kilos/cm2. We recorded the size of the ulcer, weight of the liquid from ulcer, a photograph to care sheet once a week. I performed ulcer protection law and management with the foot care sheet to 4 patients for average 4 months. As a result, the ulcers of 3 patients out of 4 patients became small.
- Published
- 2008
- Full Text
- View/download PDF
25. [Evaluation of clinical utility of 111In-DTPA-IgG scintigraphy in the detection of inflammation/infection--a report of multicenter phase III clinical trials].
- Author
-
Kubo A, Tobe K, Suzuki K, Itoh K, Endo K, Uno K, Mashima Y, Maruoka S, Tonami N, Sakahara H, Otsuka N, Masuda K, Miyazaki C, Yusa M, Gotoh H, and Shimada K
- Subjects
- Aged, Female, Humans, Male, Middle Aged, Radionuclide Imaging, Sensitivity and Specificity, Immunoglobulin G, Indium Radioisotopes, Infections diagnostic imaging, Inflammation diagnostic imaging, Pentetic Acid analogs & derivatives, Radiopharmaceuticals
- Abstract
This is the report of phase III study to evaluate the safety and utility of 111In-DTPA-IgG in patients with strongly suspected inflammation/infection. One hundred and forty five patients with suspected sites of inflammation/infection were enrolled in the study. Only a few adverse experiences in one patient were reported, which were interpreted as having a possible relationship to the agent. A total of 171 suspected sites (12 in head and neck, 39 in thorax, 44 in abdomen and pelvis, 62 in musculoskeletal system, and 14 in other regions) were evaluated by investigators at each institute. Out of 171 sites, 18 were determined to be unevaluable, and 12 false negative and 5 false positive cases were observed. Overall sensitivity and specificity was 89.8% and 85.7%, respectively, and the agent proved to be effective in detecting lesions anywhere throughout the body. The analysis of data from this Phase III study indicates that 111In-DTPA-IgG is well-tolerated in patients and effective in determining focal sites of inflammation/infection although the physiological accumulation in some tissues such as the sinus or liver and possible excretion into the gastrointestinal tract may make it difficult to localize lesions.
- Published
- 1997
26. [Ligation of the crura penis: surgical treatment for venous impotence].
- Author
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Tamura M, Kawanishi Y, Furukawa A, Numata A, Yusa M, and Imagawa A
- Subjects
- Adult, Aged, Erectile Dysfunction physiopathology, Humans, Male, Middle Aged, Penile Erection, Penis surgery, Veins surgery, Erectile Dysfunction surgery, Penis blood supply
- Abstract
Recently it has become clear that venous impotents account for a high percentage of all impotents. In venous impotents a decrease in outflow resistance is seen. We have aggressively performed operations on venous impotents to produce artificial outflow resistance. In this study, we performed ligations of the crura penis in 6 venous impotents. Five patients recovered from erectile dysfunction and 1 patient showed papaverine-induced full erection. There were few severe complications and the duration of operation was very short. This operation is thought to be a simple and effective treatment for venous impotence.
- Published
- 1990
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