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Heterogeneity in supraglacial debris thickness and its role in glacier mass changes of the Mount Gongga

Science China Earth Sciences 2016年第1期59卷 170-184页

作者： ZHANG Yong hirabayashi yukiko FUJITA Koji LIU Shi Yin LIU Qiao State Key Laboratory of Cryospheric Sciences Cold and Arid Regions Environmental and Engineering Research InstituteChinese Academy of Sciences Institute of Engineering Innovation The University of Tokyo Graduate School of Environmental Studies Nagoya University Institute of Mountain Hazards and Environment Chinese Academy of Sciences

In the Tibetan Plateau, many glaciers have extensive covers of supraglacial debris in their ablation zones, which affects glacier response to climate change by altering ice melting and spatial patterns of mass loss. Insufficient debris thickness data make it difficult to analyze regional debris-cover effects. Maritime glaciers of the Mount Gongga have been characterized by a substantial reduction in glacier area and ice mass in recent decades. The thermal property of the debris layer estimated from remotely sensed data reveals that debris-covered glaciers are dominant in this region, on which the proportion of debris cover to total glacier area varies from 1.74% to 53.0%. Using a physically-based debris-cover effect assessment model, we found that although the presence of supraglacial debris has a significant insulating effect on heavily debris-covered glaciers, il accelerates ice melting on -10.2% of total ablation zone and produces rapid wastage of -25% of the debris-covered glaciers, leading to the similar mass losses between the debris-covered and debris-free glaciers. Widespread debris cover also facilitates the development of active terminus regions. Regional differences in debris-cover effects are apparent, highlighting the im- portance of debris cover for understanding glacier mass changes in the Tibetan Plateau and other mountain ranges around the world.

关键词： Debris-cover effect Ice melting Maritime glacier Glacier status Mount Gongga

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Synchronous pancreatic solid pseudopapillary neoplasm and intraductal papillary mucinous neoplasm

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World Journal of Gastroenterology 2013年第21期19卷 3358-3363页

作者： Kenichi hirabayashi Giuseppe Zamboni Hiroyuki Ito Masami Ogawa Yoshiaki Kawaguchi Tomohiro Yamashita Toshio Nakagohri Naoya Nakamura Department of Pathology Tokai University School of MedicineIsehara 259-1193Japan Department of Pathology Ospedale Sacro Cuore Don Calabria37024 Negrar VeronaItaly Department of Pathology University of Verona37134 Negrar VeronaItaly Department of Gastroenterology Tokai University School of MedicineIsehara 259-1193Japan Department of Radiology Tokai University School of MedicineIsehara 259-1193Japan Department of Gastroenterological Surgery Tokai University School of MedicineIsehara 259-1193Japan

Solid pseudopapillary neoplasm (SPN) is a rare and low-grade malignant pancreatic neoplasm composed of poorly cohesive monomorphic neoplastic cells forming solid and pseudopapillary structures with frequent hemorrhagic-cystic degeneration. Intraductal papillary mucinous neoplasm (IPMN) is a pancreatic exocrine tumor composed of intraductal papillary growth of mucin containing neoplastic cells in the main pancreatic duct or its major branches. In the case presented here, a 53-year-old, Japanese man was found to have multiple cystic lesions and dilatation of the main pancreatic duct in the neck of the pancreas. Histological examination revealed a main-duct and branch-duct type IPMN, of the gastric-type, involving the neck of the pancreas, associated with a 0.5 cm SPN in the caudal side of the IPMN. We diagnosed this case as synchronous SPN and IPMN. As far as we know, only one other case of synchronous SPN and IPMN has been reported. Both the present case and the previously reported case showed abnormal nuclear expression of β-catenin in SPN, whereas IPMN showed no abnormal nuclear expression. These results suggest that β-catenin abnormality is not a common pathogenetic factor of synchronous SPN and IPMN.

关键词： Intraductal papillary mucinous neoplasms Solid pseudopapillary neoplasms Pancreatic neoplasms Synchronous neoplasms Pancreas Beta-catenin

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Intussusception due to hematogenous metastasis of hepatocellular carcinoma to the small intestine:A case report

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World Journal of Gastroenterology 2020年第42期26卷 6698-6705页

作者： Taro Mashiko Yoshihito Masuoka Akira Nakano Kota Tsuruya Shunji Hirose Kenichi hirabayashi Tatehiro Kagawa Toshio Nakagohri Department of Gastroenterological Surgery Tokai University School of MedicineIsehara 2591193KanagawaJapan Department of Gastroenterology Tokai University School of MedicineIsehara 2591193KanagawaJapan Department of Pathology Tokai University School of MedicineIsehara 2591193KanagawaJapan

BACKGROUND The commonest sites of extrahepatic metastases from hepatocellular carcinoma(HCC)are the lungs,bones,adrenal glands,and regional lymph *** metastasis to the gastrointestinal(GI)tract is a rare condition in patients with HCC,and the prognosis is usually *** report,herein,an extremely rare case of a patient with intussusception due to hematogenous metastasis of HCC to the ileum and his long-term survival with multidisciplinary *** SUMMARY The patient was a 71-year-old man with a history of chronic hepatitis B,who had undergone three surgeries for *** was treated with sorafenib for peritoneal metastases of *** was admitted to our hospital with chief complaints of abdominal pain and *** contrast-enhanced computed tomography imaging revealed a small intestinal tumor,presenting with intussusception and small bowel *** treatment was started,but due to repeated exacerbation of symptoms,surgery was planned on the 28th d of *** ileal resection without reducing the intussusception and end-to-end anastomosis was *** histological examination,tumor cells were not observed on the serosal surface,but intravascular invasion of tumor cells was *** was positive for immunohistochemical markers,and a diagnosis of hematogenous metastasis of HCC to the ileum was *** remains alive 82 mo after the first *** Prognosis of HCC patients with GI tract metastasis is usually poor,but in some cases,multidisciplinary therapy may prolong survival.

关键词： Hepatocellular carcinoma Hematogenous metastases Extrahepatic metastasis Small intestinal metastasis Intussusception Case report

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Triazole Ureas Covalently Bind to Strigolactone Receptor and Antagonize Strigolactone Responses

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Molecular Plant 2019年第1期12卷 44-58页

作者： Hidemitsu Nakamura Kei hirabayashi Takuya Miyakawa Ko Kikuzato Wenqian Hu Yuqun Xu Kai Jiang Ikuo Takahashi Ruri Niiyama Naoshi Dohmae Masaru Tanokura Tadao Asami Graduate School of Agricultural and Life Sciences The University of Tokyo1-1-1 YayoiBunkyo-kuTokyo 113-8657Japan ar Characterization Unit RIKEN Center for Sustainable Resource ScienceWakoSaitamaJapan Department of Biochemistry Faculty of ScienceKing Abdulaziz UniversityP.O.Box 80203Jeddah 21589Saudi Arabia

Strigolactones,a class of plant hormones with multiple functions,mediate plant-plant and plantmicroorganism communications in the *** this study,we developed potent strigolactone antagonists,which covalently bindto the strigolactone receptor D14,by preparing an array of triazole urea *** yeast two-hybrid and rice-tillering assays,we identified a triazole urea compound KK094 as a potent inhibitor of strigolactone *** chromatography-tandem mass spectrometry analysis and X-ray crystallography revealed that KK094 was hydrolyzed by D14,and that a reaction product of this degradation covalently binds to the Ser residue of the catalytic triad of ***,we identified two triazole urea compounds KK052 and KK073,whose effects on D14-D53/D14-SLR1 complex formation were opposite due to the absence (KK052)or presence (KK073)of a trifluoromethyl group on their phenyl *** results demonstrate that triazole urea compounds are potentially powerful tools for agricultural application and may be useful for the elucidation of the complicated mechanism underlying strigolactone perception.

关键词： strigolactone covalent antagonist triazole urea crystal structure

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Spinous process plate fixation for cervical spinal fusion after spinal trauma:two case reports

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2013年第9期14卷 855-858页

作者： Hiroki hirabayashi Jun TAKAHASHI Hiroyuki HASHIDATE Nobuhide OGIHARA Keijiro MUKAIYAMA Shugo KURAISHI Masayuki SHIMIZU Hiroyuki NAKAGAWA Renzo MATSUE Hiroyuki KATO Department of Orthopedic Surgery Shinshu University School of Medicine

Posterior cervical fixation with various forms of instrumentation has been used for reconstruction in cases of traumatic disorders and degenerative or tumor-related dysfunction of the cervical spine. Recently, posterior plate and rod techniques using lateral mass screws or pedicle screws have been reported to show excellent fusion rates (Xu et al.,2010).

关键词：病例报告脊柱融合脊髓损伤颈椎椎弓根螺钉钢板功能障碍外伤性

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乙酸丁酯反应精馏过程模拟设计(英文)

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计算机与应用化学 2007年第12期24卷 1585-1589页

作者：李春山 Daisuke hirabayashi Kenzi Suzuki 名古屋大学EcoTopia科学研究所

反应精馏偶合了反应和精馏两种单元操作,通过精馏促进反应,可以提高反应转化率和收率,为可逆反应的化工过程生产提供了新的设计途径。基于严格热力学分析计算,利用计算机模拟和优化手段。提出了乙酸丁酯反应精馏、分离纯化的生产流程。... 详细信息

反应精馏偶合了反应和精馏两种单元操作,通过精馏促进反应,可以提高反应转化率和收率,为可逆反应的化工过程生产提供了新的设计途径。基于严格热力学分析计算,利用计算机模拟和优化手段。提出了乙酸丁酯反应精馏、分离纯化的生产流程。采用UNIQUAC方程表征乙酸-正丁醇-乙酸丁酯-水四元非理想体系的汽液平衡,首先,根据实验数据回归了热力学模型中的交互作用参数,并预测了体系中5个共沸物组成,模型的计算结果与实际数据吻合。基于平衡级模型,提出了由平衡反应器、反应精馏塔、倾析器和纯化塔构成的可行流程,对提出的设计流程进行了模拟、优化,得到了操作工艺参数。模拟结果对工业过程的设计和改造具有一定的指导意义。

关键词：乙酸丁酯反应精馏热力学设计

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GELATION MECHANISM OF THE FIBROIN SOLUTION

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苏州大学学报（工科版） 1995年第S3期20卷 15-19页

作者： Zuglul Haider Ayub Mitsuo Arai Kiyoshl hirabayashi Deparment of Molecular Biotechnology Faculty of TechnologyTokyo university of Agriculture and Technology NakamachiKogancishi Tokyo 184 JapanDeparment of Molecular BiotechnologyFaculty of TechnologyTokyo university of Agriculture and Technology NakamachiKogancishi Tokyo 184 JapanDeparment of Molecular BiotechnologyFaculty of TechnologyTokyo university of Agriculture and Technology NakamachiKogancishi Tokyo 184 Japan

Aqueous fibroin turned into a gel when it is left alone for few *** gelation periodcan be reduced by controlling some parameters such as concentration and pH of the fibroinsolution,storage temperature *** in physical properties of fibroin gel and molecu-lar structure of the gel were studied under different ***1ation mechanism andstructure of the gel were studied with circular dichroism,eiectron microscopy,x- raydiffraction and infrared *** was found that the beta oriented conformation isrequired for the gelation of aqueous fibroin and the gelation is irreversible in nature.

关键词：针尖出口刀口

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FEASIBILITY STUDY OF IN-SODIUM IMAGING TECHNIQUE EMPLOYING GAMMA-RAY EMISSION

FEASIBILITY STUDY OF IN-SODIUM IMAGING TECHNIQUE EMPLOYING G...

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第十三届国际核工程大会

作者： Masahiko Ohtaka Masaru hirabayashi Kuniaki Ara Japan Nuclear Cycle Development Institute Japan Nuclear Cycle Development Institute Japan Nuclear Cycle Development Institute

＜正＞ An innovative monitoring technique was proposed for checking a deformation or a displacement of in-sodium objects in primary cooling system of sodium-cooled fast breeder reactor. The principle of this technique is as follows. The technique is based on emission computed tomography employing gamma-ray emitted from radioisotopes of sodium （22Na,24Na） in the primary cooling systems. The gamma-ray energies ranging from 0.511 to 2.754 MeV were emitted from these radioisotopes. The emitted gamma-rays are

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Genomics of plant speciation

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Plant Communications 2023年第5期4卷 112-133页

作者： Dan G.Bock Zhe Cai Cassandra Elphinstone Eric Gonza lez-Segovia Kaede hirabayashi Kaichi Huang Graeme L.Keais Amy Kim Gregory L.Owens Loren H.Rieseberg Department of Botany and Biodiversity Research Centre University of British ColumbiaVancouverBCCanada Department of Biology University of VictoriaVictoriaBCCanada

Studies of plants have been instrumental for revealing how new species *** several decades,botanical research has complemented and,in some cases,challenged concepts on speciation developed via the study of other organisms while also revealing additional ways in which species can ***,the ability to sequence genomes at an unprecedented pace and scale has allowed biologists to settle decades-long debates and tackle other emerging challenges in speciation ***,we review these recent genome-enabled developments in plant *** discuss complications related to identification of reproductive isolation(RI)loci using analyses of the landscape of genomic divergence and highlight the important role that structural variants have in speciation,as increasingly revealed by new sequencing ***,we review how genomics has advanced what we know of some routes to new species formation,like hybridization or whole-genome duplication,while casting doubt on others,like population bottlenecks and genetic *** genomics can fast-track identification of genes and mutations that confer RI,we emphasize that follow-up molecular and field experiments remain ***,genomics has clarified the outsized role of ancient variants rather than new mutations,particularly early during *** conclude by highlighting promising avenues of future *** include expanding what we know so far about the role of epigenetic and structural changes during speciation,broadening the scope and taxonomic breadth of plant speciation genomics studies,and synthesizing information from extensive genomic data that have already been generated by the plant speciation community.

关键词： genomic islands of speciation structural variation hybrid speciation polyploid speciation reproductive isolation standing genetic variation

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Evaluation of Degradation of PET Film by Partial Discharge Method

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Materials Sciences and Applications 2014年第1期5卷 33-38页

作者： Akinori Iguchi Hideo hirabayashi Takahiro Hayashi Kazushi Yamada Hiroyuki Nishimura Kyoto Institute of Technology Kyoto Japan Shinwa Sangyo Co. Ltd. Osaka Japan Kyoto Institute of Technology Kyoto Japan

Recently, the industry and productions have been rapidly developed by the advancement of science and technology. On the other hand, the dwindling natural resources and the global warming increasingly pose a severe problem to our life in near future. Indeed, solar photovoltaic (PV) has been attractive as one of the alternative energy resource to oil. However, some problems such as the reduction of electromotive force and the degradation of back-sheet influence the properties of the long-term life of the PV panel system. In this research, we used the high- and low-molecular-weight PET film in order to evaluate the effect of molecular weight for the hydrolysis of PET under the acceleration degradation test. As results, the mechanical properties of PET film were decreased with increasing the acceleration degradation time. In addition, it was found that the dielectric breakdown strength of PET film indicated the similar tendency with the mechanical properties. Accordingly, the non-destructive analytical technique, i.e. the partial discharge measurement makes it easy to evaluate the degradation of PET film without any damage or cut out for the film.

关键词： PET Film Back-Sheet Partial Discharge Measurement Degradation

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