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139篇 您的检索式:作者名="Ryutaro"
    题名 作者 年代 出处 被引量
1Production of global land cover data-GLCNMO显示文摘Global land cover is one of the fundamental contents of Digital Earth.The Global Mapping project coordinated by the International Steering Committee for Global Mapping has produced a 1-km global land cover datasetGlobal Land Cover by National Mapping Organizations.It has 20 land cover classes defined using the Land Cover Classification System.Of them,14 classes were derived using supervised classification.The remaining six were classified independently:urban,tree open,mangrove,wetland,snow/ice,andwater.Primary source data of this land cover mapping were eight periods of 16-day composite 7-band 1-km MODIS data of 2003.Training data for supervised classification were collected using Landsat images,MODIS NDVI seasonal change patterns,Google Earth,Virtual Earth,existing regional maps,and expert’s comments.The overall accuracy is 76.5%and the overall accuracy with the weight of the mapped area coverage is 81.2%.The data are available from the Global Mapping project website(http://gffzzdeb47a470fc54296hkouno6pbcpfb6vuk.ffgz.tsg.suse.edu.cn/).TheMODISdata used,land cover training data,and a list of existing regional maps are also available from the CEReS website.This mapping attempt demonstrates that training/validation data accumulation from different mapping projects must be promoted to support future global land cover mapping.Ryutaro Tateishi Bayaer Uriyangqai Hussam Al-Bilbisi Mohamed Aboel Ghar Javzandulam Tsend-Ayush Toshiyuki Kobayashi Alimujiang Kasimu Nguyen Thanh Hoan Adel Shalaby Bayan Alsaaideh Tsevenge Enkhzaya Gegentana Hiroshi P.Sato 2011International Journal of Digital Earth2011,4,1:11
2Prunus genetics and applications after de novo genome sequencing:achievements and prospects显示文摘Prior to the availability of whole-genome sequences,our understanding of the structural and functional aspects of Prunus tree genomes was limited mostly to molecular genetic mapping of important traits and development of EST resources.With public release of the peach genome and others that followed,significant advances in our knowledge of Prunus genomes and the genetic underpinnings of important traits ensued.In this review,we highlight key achievements in Prunus genetics and breeding driven by the availability of these whole-genome sequences.Within the structural and evolutionary contexts,we summarize:(1)the current status of Prunus whole-genome sequences;(2)preliminary and ongoing work on the sequence structure and diversity of the genomes;(3)the analyses of Prunus genome evolution driven by natural and man-made selection;and(4)provide insight into haploblocking genomes as a means to define genome-scale patterns of evolution that can be leveraged for trait selection in pedigree-based Prunus tree breeding programs worldwide.Functionally,we summarize recent and ongoing work that leverages whole-genome sequences to identify and characterize genes controlling 22 agronomically important Prunus traits.These include phenology,fruit quality,allergens,disease resistance,tree architecture,and self-incompatibility.Translationally,we explore the application of sequence-based marker-assisted breeding technologies and other sequence-guided biotechnological approaches for Prunus crop improvement.Finally,we present the current status of publically available Prunus genomics and genetics data housed mainly in the Genome Database for Rosaceae(GDR)and its updated functionalities for future bioinformatics-based Prunus genetics and genomics inquiry.Maria JoséAranzana Véronique Decroocq Elisabeth Dirlewanger Iban Eduardo Zhong Shan Gao Ksenija Gasic Amy Iezzoni Sook Jung Cameron Peace Humberto Prieto Ryutaro Tao Ignazio Verde Albert G.Abbott Pere Arús 2019Horticulture Research2019,6,1:8
3Factors influencing subjective symptoms in dry eye disease显示文摘AIM: To retrospectively investigate the association between dry eye symptoms and clinical or in vivo confocal microscopy parameters in patients with dry eye disease(DED), and to compare these parameters between eyes with DED and normal subjects.METHODS: This retrospective, cross-sectional, controlled study comprised 25 consecutive patients with non-Sj?gren dry eye disease and age-and sex-matched 25 healthy subjects. Each patient underwent a complete examination of the ocular surface in the following order: tear osmolarity measurements, InflammaDry test, tear break-up time, corneal fluorescein staining, Schirmer I test, subjective symptoms questionnaire using the dry eye-related qualityof-life score(DEQS), and in vivo confocal microscopy analysis of the central cornea. Beck depression inventory(BDI) as depressive scale and history of medications and smoking were also evaluated. Stepwise multiple regression analysis was used to assess the factors affecting the DEQS.RESULTS: In univariate analysis, DEQS was associated with tear break-up time(ρ=-0.48, P=0.01), oral medications, such as hypotensive drug(ρ=0.56, P=0.004) and antidepressant(ρ=0.57, P=0.003), and BDI(ρ=0.61, P=0.001) in patients with DED. In multiple regression analysis, explanatory variables relevant to the DEQS were the anti-depressant medications(P=0.04, partial regression coefficient B=21.04) and BDI(P=0.02, B=0.76, adjusted R2=0.54) in these patients. CONCLUSION: Our study shows a significant association between depression and dry eye symptoms. It suggests that dry eye symptoms associate with higher depressive symptoms and its medications, although our patients were not followed longitudinally.Hidenaga Kobashi Kazutaka Kamiya Takehiko Sambe Ryutaro Nakagawa 2018International Journal of Ophthalmology(English edition)2018,11,12:6
4Preharvest long-term exposure to UV-B radiation promotes fruit ripening and modifies stage-specific anthocyanin metabolism in highbush blueberry显示文摘Ultraviolet-B(UV-B)light(280–315 nm)is an important environmental signal that regulates plant development and photomorphogenesis,while also affecting the flavonoid pathway,including anthocyanin biosynthesis.Regarding the effects of UV-B radiation on fruits,the effects of a short-term or postharvest irradiation on fruit quality have been well-documented,but the effects of a long-term preharvest UV-B irradiation on fruit growth and coloration remain unclear.Thus,in this study,we investigated the effects of a long-term treatment involving an environmentally relevant UV-B dose on highbush blueberry(Vaccinium corymbosum)fruit.The preharvest UV-B treatment quickly promoted fruit growth and sugar accumulation,which is not commonly observed in other fruit tree species.The UV-B exposure also accelerated fruit ripening and coloration.The dual-luciferase assay proved that in blueberries,expression of VcUFGT encoding anthocyanin biosynthesis key enzyme,is positively and negatively regulated by VcMYBA1 and VcMYBC2,respectively.Throughout the fruit development stage,the UV-B treatment up-regulated VcMYBPA1 expression,which increased VcUFGT expression via VcMYBA1.In the green fruit stage,the UV-B treatment increased HY5 encoding UV receptor,which up-regulates VcMYBPA1 and down-regulates VcMYBC2,thereby promotes the accumulation of anthocyanins.On the other hand,excessive anthocyanin synthesis was inhibited by increased VcMYBC2 levels in mature fruits when exposed to UV-B light through HY5-independent pathway.In conclusion,anthocyanin-related MYB activators and repressor may coordinately balance the accumulation of anthocyanins in blueberry fruits,with UV-B treatments possibly influencing their effects in a stage-specific manner.The potential utility of preharvest UV-B treatments for improving blueberry fruit quality is discussed herein.Taishan Li Hisayo Yamane Ryutaro Tao 2021Horticulture Research2021,8,1:6
5Multi-criteria technique for mapping of debris-covered and clean-ice glaciers in the Shaksgam valley using Landsat TM and ASTER GDEM显示文摘Glaciers in the Shaksgam valley provide important fresh water resources to neighbourhood livelihood. Repeated creation of the glacier inventories is important to assess glacier–climate interactions and to predict future runoff from glacierized catchments. For this study, we applied a multi-criteria technique to map the glaciers of the Shaksgam valley of China, using Landsat Thematic Mapper(Landsat TM)(2009) and Advanced Spaceborne Thermal Emission and Reflection Radiometer Global Digital Elevation Model version two(ASTER GDEM V2) data. The geomorphometric parameters slope, plan, and profile curvature were generated from ASTER GDEM. Then they were organized in similar surface groups using cluster analysis. For accurate mapping of supraglacial debris area, clustering results were combined with a thermal mask generated from the Landsat TM thermal band. The debris-free glaciers were identified using the band ratio(TM band 4/TM band 5) technique. Final vector maps of the glaciers were created using overlay tools in a geographic information system(GIS).Accuracy of the generated glacier outlines was assessed through comparison with glacier outlines based on the Second Chinese Glacier Inventory(SCGI) data and glacier outlines created from high-resolution Google Earth? images of 2009. Glacier areas derived using the proposed approach were 3% less than in the reference datasets. Furthermore, final glacier maps show satisfactory mapping results, but identification of the debris-cover glacier terminus(covered by thick debris layer) is still problematic. Therefore, manual editing was necessary to improve the final glacier maps.Alifu HAIRETI Ryutaro TATEISHI Bayan ALSAAIDEH Saeid GHARECHELOU 2016Journal of Mountain Science2016,13,4:5
6Color Correction for Multi-view Video Using Energy Minimization of View Networks显示文摘Systems using numerous cameras are emerging in many fields due to their ease of production and reduced cost,and one of the fields where they are expected to be used more actively in the near future is in image-based rendering(IBR).Color correction between views is necessary to use multi-view systems in IBR to make audiences feel comfortable when views are switched or when a free viewpoint video is displayed.Color correction usually involves two steps:the first is to adjust camera parameters such as gain,brightness,and aperture before capture,and the second is to modify captured videos through image processing.This paper deals with the latter,which does not need a color pattern board.The proposed method uses scale invariant feature transform(SIFT) to detect correspondences,treats RGB channels independently,calculates lookup tables with an energy-minimization approach,and corrects captured video with these tables.The experimental results reveal that this approach works well.Kenji Yamamoto Ryutaro Oi 2008International Journal of Automation and computing2008,5,3:4
7Farinose fiavonoids are associated with high freezing tolerance in fairy primrose (Primula malacoides) plants显示文摘The deposition of surface(farinose)fiavonoids on aerial parts of some Primula species is a well-documented but poorly understood phenomenon.Here,we show thatfiavonoid deposition on the leaves and winter buds may contribute strongly to preventing freezing damage in these plants.The ice nucleation temperature of fairy primrose(Primula malacoides)leaves covered with naturalfiavone was approximately 6°C lower compared to those that had theirfiavone artificially removed.Additionally,farinosefiavonoids on the leaves reduced subsequent electrolyte leakage(EL)from the cells exposed to freezing temperatures.Interestingly,exogenous application offiavone at4 mg/g fresh weight to P.malacoides leaves,which had the originalfiavone mechanically removed,restored freezing tolerance,and diminished EL from the cells to pretreatment values.Our results suggest that farinosefiavonoids may function as mediators of freezing tolerance in P.malacoides,and exogenous application offiavone could be used to reduce freezing damage during sudden but predictable frost events in other plant species.Ryutaro Isshiki Ivan Galis Shigemi Tanakamaru 2014Journal of Integrative Plant Biology2014,56,2:3
8Evaluating urban expansion and land use change in Shijiazhuang, China, by using GIS and remote sensing显示文摘Jieying Xiao Yanjun Shen Jingfeng Ge Ryutaro Tateishi Changyuan Tang Yanqing Liang Zhiying Huang 2005Landscape and Urban Planning2005,,1:3
9Cyberknife treatment for advanced or terminal stage hepatocellular carcinoma显示文摘AIM: To investigate the safety and efficacy of the Cyberknife treatment for patients with advanced or terminal stage hepatocellular carcinoma(HCC).METHODS: Patients with HCC with extrahepatic metastasis or vascular or bile duct invasion were enrolled between May 2011 and June 2015. The Cyberknife was used to treat each lesion. Treatment response scores were based on Response Evaluation Criteria in Solid Tumors v1.1. The trends of tumor markers,including alpha fetoprotein(AFP) and proteins induced by vitamin K absence Ⅱ(PIVKA Ⅱ) were assessed. Prognostic factors for tumor response and tumor markers were evaluated with Fisher's exact test and a logistic regression model. Survival was evaluated with the Kaplan-Meier method and multivariate analysis was performed using the Cox proportional hazards model.RESULTS: Sixty-five patients with 95 lesions were enrolled. Based on the Barcelona Clinic Liver Cancer classification,all patients were either in the advanced or terminal stage of the disease. The target lesions were as follows: 52 were bone metastasis; 9,lung metastasis; 7,brain metastasis; 9,portal vein invasion;4,hepatic vein invasion; 4,bile duct invasion; and 10 other lesion types. The response rate and disease control rate were 34% and 53%,respectively. None of the clinical factors correlated significantly with tumor response. Fiducial marker implantation was associated with better control of both AFP(HR = 0.152; 95%CI: 0.026-0.887; P = 0.036) and PIVKA Ⅱ(HR = 0.035; 95%CI: 0.003-0.342; P = 0.004). The median survival time was 9 mo(95%CI: 5-15 mo). Terminal stage disease(HR = 9.809; 95%CI: 2.589-37.17,P < 0.001) and an AFP of more than 400 ng/m L(HR = 2.548; 95%CI: 1.070-6.068,P = 0.035) were associated with worse survival. A radiation dose higher than 30 Gy(HR = 0.274; 95%CI: 0.093-0.7541,P = 0.012) was associated with better survival. In the 52 cases of bone metastasis,36 patients(69%) achieved pain relief. One patient had cerebral bleeding and another patient had an esophageal ulcer after treatment.CONCLUSION: The Cyberknife can be safely administered to patients with advanced or terminal stage HCC. High AFP levels were associated with worse survival,but a higher radiation dose improved the survival.Hiroyuki Kato Hideo Yoshida Hiroyoshi Taniguch Ryutaro Nomura Kengo Sato Ichiro Suzuki Ryo Nakata 2015World Journal of Gastroenterology2015,21,46:3
10Gravitational effects on global hemodynamics in different postures:A closed-loop multiscale mathematical analysis显示文摘We present a novel methodology and strategy to predict pressures and flow rates in the global cardiovascular network in different postures varying from supine to upright. A closed-loop, multiscale mathematical model of the entire cardiovascular system(CVS) is developed through an integration of one-dimensional(1D) modeling of the large systemic arteries and veins, and zero-dimensional(0D) lumped-parameter modeling of the heart, the cardiacpulmonary circulation, the cardiac and venous valves, as well as the microcirculation. A versatile junction model is proposed and incorporated into the 1D model to cope with splitting and/or merging flows across a multibranched junction, which is validated to be capable of estimating both subcritical and supercritical flows while ensuring the mass conservation and total pressure continuity. To model gravitational effects on global hemodynamics during postural change, a robust venous valve model is further established for the 1D venous flows and distributed throughout the entire venous network with consideration of its anatomically realistic numbers and locations. The present integrated model is proven to enable reasonable prediction of pressure and flow rate waveforms associated with cardiopulmonary circulation, systemic circulation in arteries and veins, as well as microcirculation within normal physiological ranges, partic-ularly in mean venous pressures, which well match the in vivo measurements. Applications of the cardiovascular model at different postures demonstrate that gravity exerts remarkable influence on arterial and venous pressures, venous returns and cardiac outputs whereas venous pressures below the heart level show a specific correlation between central venous and hydrostatic pressures in right atrium and veins.Xiancheng Zhang Shigeho Noda Ryutaro Himeno Hao Liu 2017Acta Mechanica Sinica2017,33,3:2
11Global mapping of urban built-up areas of year 2014 by combining MODIS multispectral data with VIIRS nighttime light data显示文摘An improved methodology for the extraction and mapping of urban built-up areas at a global scale is presented in this study.The Moderate Resolution Imaging Spectroradiometer(MODIS)-based multispectral data were combined with the Visible Infrared Imager Radiometer Suite(VIIRS)-based nighttime light(NTL)data for robust extraction and mapping of urban built-up areas.The MODIS-based newly proposed Urban Built-up Index(UBI)was combined with NTL data,and the resulting Enhanced UBI(EUBI)was used as a single master image for global extraction of urban built-up areas.Due to higher variation of the EUBI with respect to geographical regions,a region-specific threshold approach was used to extract urban built-up areas.This research provided 500-m-resolution global urban built-up map of year 2014.The resulted map was compared with three existing moderate-resolution global maps and one high-resolution map in the United States.The comparative analysis demonstrated finer details of the urban built-up cover estimated by the resultant map.Ram C.Sharma Ryutaro Tateishi Keitarou Hara Saeid Gharechelou Kotaro Iizuka 2016International Journal of Digital Earth2016,9,10:2
12肝门部胆管癌手术治疗中血管(特别是肝动脉)切除重建的意义显示文摘方法:回顾性收集从1992年4月到2014年3月横滨市立大学医学院附属医院172例肝门部胆管癌手术病人的影像学资料、手术及预后相关资料。将手术病人是否血管重建分成三组:1.VR(-)组:门静脉、肝动脉都未进行切除(74例)。2.VR-(PV)组:只对门静脉切除重建组(54例)。Ryusei Matsuyama Ryutaro Mori Yohei Ota 林杰 刘付宝 2016肝胆外科杂志2016,24,5:2
13辣椒SSR标记的开发和高密度遗传连锁图谱的构建显示文摘为了方便辣椒的标记辅助育种和遗传分析,我们利用辣椒基因组富集文库和公共数据库辣椒的cDNA序列,从中开发了一批非冗余的、具有2~3个碱基基序的SSR(simple sequence repeat)标记。SSR富集文库由三种限制性内切酶(AluI、HaeⅢ、RsaI)和两种生物素标记的寡核苷酸探针b(GA)15和b(CA)15共同构建而成。从6528个克隆开发了1736个基因组SSR标记,从13003个序列中获得了1344个cDNA序列来源的SSR标记。利用自交系K9-11和MZC-180的种内杂交种(K9-11×MZC-180)获得了双单倍体分离群体,并用于遗传作图。将597个标记定位到该连锁图上,其中包括265个新开发的SSR标记。将该遗传图谱命名为KL-DH,它包括12个连锁群,覆盖了2028cM的遗传距离,标记间的平均距离少于4cM。将KL-DH图谱的框架结构与已发表的COSⅡ图谱进行了比较,并利用番茄的基因组序列来整合两个图谱。COSⅡ图谱是由C.frutescens×C.annuum种间杂种的F2分离群体构建而成。本研究所建立的种内杂交KL-DH图谱和种间杂交COSⅡ图谱在图谱长度和标记分布上比较相似,表明KL-DH图谱几乎覆盖了整个辣椒基因组。Toru Sugita Yukari Semi Hiromasa Sawada Yumi Utoyama Yuko Hosomi Eri Yoshimoto Yuki Maehata Hiroyuki Fukuoka Ryutaro Nagata Akio Ohyama 高凌云 孔秋生 2013辣椒杂志2013,,2:2
14Remote sensing and GIS for mapping and monitoring land cover and land-use changes in the Northwestern coastal zone of Egypt显示文摘Adel Shalaby Ryutaro Tateishi 2006Applied Geography2006,,1:2
15Effect of Double Air Injection on Performance Characteristics of CentrifugalCompressor显示文摘In the operation of a centrifugal compressor of turbocharger, instability phenomena such as rotating stall and surge are induced at a lower flow rate close to the maximum pressure ratio. In this study, the compressed air at the exit of centrifugal compressor was re-circulated and injected to the impeller inlet by using two injection nozzles in order to suppress the surge phenomenon. The most effective circumferential position was examined to reduce the flow rate at the surge inception. Moreover, the influences of the injection on the fluctuating property of the flow field before and after the surge inception were investigated by examining the frequency of static pressure fluctuation on the wall surface and visualizing the compressor wall surface by oil-film visualization technique.Toshiyuki Hirano Tatsuya Ogawa Ryutaro Yasui Hoshio Tsujita 2017Journal of Thermal Science2017,26,1:2
16Structure and electrical properties of multilayer PZT films prepared by sol-gel processing显示文摘Miyazawa Kun'ichi Ito Kunio Maeda Ryutaro 2000Ceramics International2000,26,5:1
17Engineering genetic resistance against Insects in Japanese persimmon using the cryIA(c)gene of bacillus thuringiensis显示文摘Ryutaro Tao 1997J Amer Soc Hort Sci1997,122,6:1
18A novel adenovirus expressing human 4–1BB ligand enhances antitumor immunity显示文摘Hiroshi Yoshida Yu Katayose Michiaki Unno Masanori Suzuki Hideaki Kodama Shin-ichi Takemura Ryutaro Asano Hiroki Hayashi Kuniharu Yamamoto Seiki Matsuno Toshio Kudo 2003Cancer Immunology Immunotherapy2003,,2:1
19Growth of lead zirconate titanate thin films by hybrid processing:sol-gel method and pulsed-laser deposition显示文摘Wang Zhan Jie Kokawa Hiroyuki Maeda Ryutaro 2004Journal of Crystal Growth2004,262,14:1
20Interfacial reaction of water ice on polycrystalline vanadium and its effects on thermal desorption of water显示文摘RYUTARO SOUDA 2014Phys Chem Chem Phys2014,34,16:1
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