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First Application of Optically Active trans-1,2-Bis(2- aminophenyl)cyclopentane for Asymmetric Reaction: Enantioselective N-Acetylation of Secondary Alkyl Amines

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Chinese Chemical Letters 2001年第1期12卷 1-4页

作者： Yang, Jin Song kondo, kazuhiro Murakami, Yasuoki Dept. of Chem. of Med. Nat. Products School of Pharmacy W. China Univ. of Medical Sciences Chengdu 610041 China School of Pharmaceutical Sciences Toho University Funabashi Chiba 274 Miyama 2-2-1 Japan

First application of optically active trans-1,2-Bis(2-aminophenyl)cyclopentane 2 for asymmetric reaction, enantioselective N-acetylation of secondary alkyl amines, is described. This acetylation with tetraacetylated 3... 详细信息

关键词： First Application of Optically Active trans-1,2-Bis Enantioselective N-Acetylation of Secondary Alkyl Amines

Self-Restoration Properties of VWP Networks by Spare Wavelength Optimization

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光学学报 2003年第S1期23卷 751-752页

作者： Yu Sasaki Kiyoshi Nakagawa Katsumi Takano kazuhiro kondo Graduate School of Science and Engineering Yamagata University 4-3-16 Jonan Yonezawa Yamagata 992-8510 JapanGraduate School of Science and Engineering Yamagata University 4-3-16 Jonan Yonezawa Yamagata 992-8510 JapanGraduate School of Science and Engineering Yamagata University 4-3-16 Jonan Yonezawa Yamagata 992-8510 JapanGraduate School of Science and Engineering Yamagata University 4-3-16 Jonan Yonezawa Yamagata 992-8510 Japan

The self-restoration properties in VWP networks are investigated with optimization about spare wavelength by simulations. Rapid restoration can be achieved by selection of rerouting path with long delay and no delay-l... 详细信息

关键词： of VWP work in et it link by

Stage IV malignant transformation of mature cystic teratoma palliatively treated with concurrent chemoradiotherapy:A case report

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World Journal of Clinical Cases 2025年第1期13卷 56-61页

作者： Saori kondo Takashi Suzuki Kanato Yoshiike Sakura Yamanaka Kenta Sonehara Hiroshi Nabeshima Osamu Oguchi Department of Obstetrics and Gynecology Saku Central Hospital Advanced Care CenterSaku City 385-0051NaganoJapan

BACKGROUND Malignant transformation(MT)of mature cystic teratoma(MCT)has a poor prognosis,especially in advanced *** chemoradiotherapy(CCRT)has an inhibitory effect on *** SUMMARY Herein,we present a case in which CCRT had a reduction effect preoperatively.A 73-year-old woman with pyelonephritis was referred to our *** tomography revealed right hydronephrosis and a 6-cm pelvic *** ultrasound-guided fine-needle biopsy(EUS-FNB)revealed squamous cell *** patient was diagnosed with MT of *** to her poor general con-dition and renal malfunction,we selected CCRT,expecting fewer adverse *** CCRT,her performance status improved,and the tumor size was reduced;surgery was *** months postoperatively,the patient developed dis-semination and lymph node *** chemotherapy was *** died 18 months after treatment *** EUS-FNB was useful in the diagnosis of MT of MCT;CCRT suppressed the disea-se and improved quality of life.

关键词： Mature cystic teratoma Malignant transformation Squamous cell carcinoma Concurrent chemoradiotherapy Endoscopic ultrasound-guided fine-needle biopsy Case report

Adjuvant surgery for advanced extrahepatic cholangiocarcinoma

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World Journal of Gastroenterology 2013年第40期19卷 6934-6938页

作者： Yukio Oshiro kazuhiro Takahashi Ryoko Sasaki Tadashi kondo Shingo Sakashita Nobuhiro Ohkohchi Department of Surgery Division of Gastroenterological and Hepatobiliary Surgeryand Organ TransplantationUniversity of TsukubaTsukuba 305-8575Japan Department of Pathology Faculty of MedicineUniversity of TsukubaTsukuba 305-8575Japan

Patients with StageⅣcholangiocarcinoma are currently not considered to be surgical candidates and are typically offered systemic ***,several novel systemic chemotherapy regimens have allowed an initially unresectable cholangiocarcinoma to be *** aim of this article is to present the usefulness of adjuvant surgery in a case of advanced cholangiocarcinoma that was successfully treated with gemcitabine.A 72-year-old man was diagnosed with distal cholangiocarcinoma with liver metastases(cT2N0M1,StageⅣ).He underwent metal stent placement in the duodenum to alleviate *** 18courses of chemotherapy using gemcitabine without severe drug toxicities,a computed tomography scan showed that the liver metastases in S6 and S7 had *** patient underwent subtotal stomachpreserving pancreaticoduodenectomy and lymph node *** pathological stage was pT2N0M0,StageⅠ*** patient underwent 6 cycles of adjuvant chemotherapy using *** patient is alive and well 6 years and 9 mo after the diagnosis.

关键词： Extrahepatic cholangiocarcinoma Adjuvant surgery Conversion surgery Chemotherapy Gemcitabine

A divide & conquer approach to liveness model checking under fairness & anti-fairness assumptions

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Frontiers of Computer Science 2019年第1期13卷 51-72页

作者： kazuhiro OGATA School of Information Science Japan Advanced Institute of Science and Technology (JAIST) 1-1 AsahidaiNomiIshikawa 923-1292Japan

This paper proposes an approach to making livehess model checking problems under fairness *** proposed method divides such a problem into smaller ones that can be *** is not superior to existing tools dedicated to model checking liveness properties under fairness assumptions in terms of model checking performance but has the following positive aspects:1)the approach can be used to model check liveness properties under anti-fairness assumptions as well as fairness assumptions,2)the approach can help humans better understand the reason why they need to use fairness and/or anti-fairness assumptions,and 3)the approach makes it possible to use existing linear temporal logic model checkers to model check liveness properties under fairness and/or anti-fairness assumptions.

关键词： anti-fairness fairness liveness property Maude model checking

Molecular Integral for the Double Electron-Repulsion Potential： A Closed Form Underived for Forty Years

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Chinese Physics Letters 2005年第12期22卷 3052-3053页

作者： kazuhiro Ishida Department of Chemistry and Frontier Research Centre for Computational Sciences Faculty of ScienceTokyo University of Science Shinjuku-ku Tokyo 162-8601 Japan

A closed form of the title integral formula over the Gaussian-type orbitals is derived for the first time. The present closed form is analytical as the multiple hyper-geometric function of five variables.

关键词： 3-BODY INTERACTION INTEGRALS MATHEMATICAL METHODS SHELL ATOMS IONS

Positively Expansive Differentiable Maps

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Acta Mathematica Sinica,English Series 2010年第10期26卷 1839-1846页

作者： kazuhiro SAKAI Department of Mathematics Utsunomiya University

We study the space of positively expansive differentiable maps of a compact connected C ∞ Riemannian manifold without boundary. It is proved that （i） the C1-interior of the set of positively expansive differentiable maps coincides with the set of expanding maps, and （ii） Cl-generically, a differentiable map is positively expansive if and only if it is expanding.

关键词： Positively expansive maps expanding marts

New microsome-associated HT-family proteins from Nicotiana respond to pollination and define an HT/NOD-24 protein family

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Molecular Plant 2008年第4期1卷 634-644页

作者： Katsuhiko kondo Bruce McClure Department of Biochemistry Interdisciplinary Plant Group and the Christopher S. Bond Life Sciences Center University of Missouri MI USA

HT-family proteins have been identified in Nicotiana, Solanum, and Petunia. HT-B-type proteins are implicated in S-RNase-based self-incompatibility, but the functions of other family members are unknown. Screening for cDNA sequences with an expression pattern similar to HT-B in Nicotiana alata revealed a new group of small HT-family proteins, designated HT-M. HT-M proteins resemble HT-B in several respects： their pistil-specific expression pattern is indistinguishable from HT-B, they pellet with a microsome fraction, and their abundance decreases after pollination. Unlike HT-B, there is no S-specificity to this response, and RNAi experiments show that HT-M proteins are not necessary for self-incompatibility. Identification of a third group of pistil-specific HT-family proteins helps better define the characteristics of the family and allowed identification of putative new family members. By searching the databases with only the most conserved HT- family sequence elements, the signal sequence and cysteine motifs, we identified nodulin-24-1ike proteins and several small glycine-rich proteins as putative HT-family members. Like HT-M and HT-B, nodulin-24 is membrane associated. We propose that the conserved features in HT-family proteins are important for targeting or modification and refer to the broader family that includes both HT- and nodulin-24-1ike proteins as the HT/NOD-24-family.

关键词： New microsome-associated HT-family pollination an HT/NOD-24 protein family

Strategies to enhance hydrogen storage performances in bulk Mg-based hydrides

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Journal of Materials Science & Technology 2023年第22期153卷 139-158页

作者： Xin F.Tan Manjin Kim kazuhiro Yasuda kazuhiro Nogita School of Mechanical and Mining Engineering The University of QueenslandSt.LuciaQLD 4072Australia Department of Applied Quantum Physics and Nuclear Engineering Kyushu UniversityFukuoka 819-0395Japan John de Laeter Centre Curtin UniversityGPO Box U1987PerthWA 6845Australia

Bulk Mg-based hydrogen storage materials have the potential to provide a low-cost solution to diversify energy storage and *** to nano powders which require handling and processing under hydrogen or an inert gas atmosphere,bulk Mg-based alloys are safer and are more oxidation *** methods and existing infrastructures can be used to process and handle these ***,bulk Mg alloys have smaller specific surface areas,resulting in slower hydrogen sorp-tion kinetics,higher equilibrium temperatures,and enthalpies of hydride *** work reviews the effects of the additions of a list of alloying elements and the use of innovative processing meth-ods,e.g.,rapid solidification and severe plastic deformation processes,to overcome these *** challenges,advantages,and weaknesses of each method and future perspectives for the development of Mg-based hydrogen storage materials are discussed.

关键词： Hydrogen storage Metal hydrides Mg alloys Mg hydrides