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Coexistence of cluster and shell-model aspects in nuclear systems

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Frontiers of physics 2018年第6期13卷 89-113页

作者： Yoshiko kanada-En'yo Hisashi Horiuchi Department of Physics Kyoto University Kitashirakawa Oiwake-Cho Kyoto 606-8502 Japan Research Center for Nuclear Physics (RCNP) Osaka University Ibaraki Osaka 567-0047 Japan

We discuss cluster phenomena in light nuclei. As examples of typical cluster structures, we first review cluster structures of 12C, 16O, and 20Ne, and then introduce some topics of cluster phenomena in light neutron-rich nuclei such as Be and C isotopes. A particular attention is paid on coexistence of cluster and shell-model aspects.

关键词： cluster nuclear structure

A new N* resonance as a hadronic molecular state

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Chinese Physics C 2009年第12期33卷 1312-1317页

作者： Daisuke Jido Yoshiko kanada-En’yo Yukawa Institute for Theoretical Physics Kyoto University Kyoto 606-8502 Japan

We report our recent work on a hadronic molecule state of the KKN system with I =1/2 and jR = 1/2＋. We assume that the A（1405） resonance and the scalar mesons, f0（980）, ao（980）, are reproduced as quasi-bound states of KN and KK, respectively. Performing non-relativistic three-body calculations with a variational method for this system, we find a quasibound state of the KIlN system around 1910 MeV below the three-body breakup threshold. This state corresponds to a new baryon resonance of N＊ with JP ： 1/2＋. We find also that this resonance has the cluster structure of the two-body bound states keeping their properties as in the isolated two-particle systems. We also briefly discuss another hadronic molecular state composed by two K and one N, which corresponds to a resonance.

关键词： three-body bound state ∧(1405) resonance kaon-nucleon intera^tion variational calculation

Cluster structures in stable and unstable nuclei

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Nuclear Science and Techniques 2015年第2期26卷 71-74页

作者： Yoshiko kanada-En’yo Masaaki Kimura Fumiharu Kobayashi Tadahiro Suhara Yasutaka Taniguchi Yuta Yoshida Department of Physics Kyoto University Department of Physics Hokkaido University Department of Physics Niigata University Matsue College of Technology Nihon Institute of Medical Science Moroyama-machiIruma-gunSaitama 350-0435Japan

Cluster structures in light unstable nuclei are discussed. The structures of neutron-rich Be isotopes are theoretically investigated and the molecular orbital bond structure and its role in the vanishing of the neutron magic number N = 8 are discussed. The two-body cluster resonances in highly excited states of neutron-rich Li, Be and B isotopes are predicted theoretically.

关键词：团簇结构不稳定原子核铍同位素丰中子分子轨道高激发态理论预测

High-Level Portable Programming Language for Optimized Memory Use of Network Processors

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Communications and Network 2015年第1期7卷 55-69页

作者： Yasusi kanada Central Research Laboratory Hitachi Ltd. Yokohama Japan

Network processors (NPs) are widely used for programmable and high-performance networks;however, the programs for NPs are less portable, the number of NP program developers is small, and the development cost is high. To solve these problems, this paper proposes an open, high-level, and portable programming language called “Phonepl”, which is independent from vendor-specific proprietary hardware and software but can be translated into an NP program with high performance especially in the memory use. A common NP hardware feature is that a whole packet is stored in DRAM, but the header is cached in SRAM. Phonepl has a hardware-independent abstraction of this feature so that it allows programmers mostly unconscious of this hardware feature. To implement the abstraction, four representations of packet data type that cover all the packet operations (including substring, concatenation, input, and output) are introduced. Phonepl have been implemented on Octeon NPs used in plug-ins for a network-virtualization environment called the VNode Infrastructure, and several packet-handling programs were evaluated. As for the evaluation result, the conversion throughput is close to the wire rate, i.e., 10 Gbps, and no packet loss (by cache miss) occurs when the packet size is 256 bytes or larger.

关键词： Network Processors Portability High-Level Language Hardware Independence Memory Usage DRAM SRAM Network Virtualization

Prevalence of Anxiety and Associated Factors among University Students: A Cross-Sectional Study in Japan

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International Journal of Mental Health Promotion 2023年第7期25卷 855-861页

作者： Yoshikiyo kanada Shota Suzumura Soichiro Koyama Kazuya Takeda Kenta Fujimura Takuma Ii Shigeo Tanabe Hiroaki Sakurai Faculty of Rehabilitation School of Health SciencesFujita Health UniversityToyoake4701192Japan Department of Rehabilitation Medicine National Center for Geriatrics and GerontologyObu4748511Japan

Mental health difficulties can impact students’motivation,focus,and ability to communicate with *** attending medical universities are more likely to experience anxiety,depression,and other mood changes for thefirst ***,no study has examined their prevalence among Japanese rehabilitation *** study investigated the prevalence of anxiety among Japanese rehabilitation students and aimed to identify its predictors.A cross-sectional study was conducted among 148first-year physical and occupational therapy students at a private medical university in Japan in June *** on sociodemographic and personal characteristics,such as gender,age,subject major,regular exercise,place of residence,and sleeping hours,were recorded using an original *** included the State-Trait Anxiety Inventory,COVID-19 questionnaire,and Beck Depression Inventory–Second Edition(BDI-II).The results indicated that 83(56%)and 77(52%)students exhibited state anxiety and trait anxiety symptoms,***-four(23%)students experienced mild depressive *** were further determined between gender,subject major,handling of stress,loneliness,satisfaction with life,satisfaction with social connections,anxiety about the future,satisfaction with school life,fulfillment of friendships,and *** variables demonstrated a statistically significant association:handling stress(p<0.05;95%CI 0.409–2.472),satisfaction with life(p<0.01;95%CI 0.500–0.897),anxiety about the future(p<0.01;95%CI 1.397–4.087),and depression(total score of BDI-II,p<0.01;95%CI 1.555–100.742).Our results emphasize that universities must establish a system for early identification and support of anxiety and depression in students.

关键词： Anxiety university students COVID-19 mental health Japan rehabilitation students

神经母细胞瘤患者在接受侵袭性手术或化疗后长期的随访情况:单中心研究

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世界核心医学期刊文摘（儿科学分册） 2005年第2期1卷 46-47页

作者： Kubota M. Yagi M. kanada S. 李丹 Department of Pediatric SurgeryNiigata Univ.Grad.Sch.Med.D. NiigataJapan

背景/目的:在1985年对晚期神经母细胞瘤患者采用全国统一的侵袭性化疗方案之前,日本各个医疗机构使用的治疗方法差别很大。在1985年之前,作者所在机构选择的治疗方案是一种侵袭性的手术切除法。为了更好地了解治疗相关的并发症。

关键词：神经母细胞瘤随访情况侵袭性单中心医疗机构使用群体筛查切除法听力损害单侧肾单侧下肢

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先天性巨结肠病患者术后的粪流率资料

世界核心医学期刊文摘（儿科学分册） 2005年第8期1卷 44-45页

作者： Yagi M. Kubota M. kanada S. 宁亮 Department of Pediatric Surgery Niigata UniversityGrad. Sch. of Med. and Dent. Sci. Niigata- City Niigata 951- 8510 Japan

Purpose: The objective of this study is to evaluate the anorectal function fr om the viewpoint of fecoflowmetry in postoperative patients with Hirschsprung’ s disease (HD). Methods: This study evaluated 23 long- term follow- up patient s who had undergone a radical operation for HD. Their mean age was 11 years. The types of HD included rectosigmoid colon type, 18 cases, and entire colon type, 5 cases. An anorectal manometric study was performed before fecoflowmetry. After normal saline solution was administrated as an imitation stool into the rectal cavity under pressure monitoring, the patients defecated on a fecoflowmeter. Aft er discussing the maximum defecation flow (Flow- max), fecoflow pattern (FFP), tolerance rate (TR), anal canal pressure (AP), and Kelly’s clinical scores (Ke lly- Scores), the significant parameters were i dentified to elucidate the anorectal activity. Results: (1) A close relations hip was observed between the FFP and Kelly- Scores (P = .0027). (2) Flow- max, TR, and AP in patients with good Kelly- Scores were signifi- cantly higher th an those in patients with fair Kelly- Scores (P 45 mL per second, TR >70% , or AP > 30 mmHg was statistically regarded as a borderline level of f ecal continence (P < .002). Conclusions: The Flow- max and FFP are considered t o be useful parameters for postoperative patients with HD.

关键词：先天性巨结肠流率结肠型临床评分直肠乙状结肠功能情况随访情况根治性手术检测仪有效参数