178 research outputs found

    Structure of the nucleon in chiral perturbation theory

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    We discuss a renormalization scheme for relativistic baryon chiral perturbation theory which provides a simple and consistent power counting for renormalized diagrams. The method involves finite subtractions of dimensionally regularized diagrams beyond the standard modified minimal subtraction scheme of chiral perturbation theory to remove contributions violating the power counting. This is achieved by a suitable renormalization of the parameters of the most general effective Lagrangian. As applications we discuss the mass of the nucleon, the σ\sigma term, and the scalar and electromagnetic form factors.Comment: Invited talk given by S. Scherer at the Fourth International Conference on Perspectives in Hadronic Physics, Trieste, Italy, 12 -16 May 2003, 8 pages, 7 figure

    Application of Finite Element Method for Eigenvalue Problem

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    15KJ00003571915論文Articledepartmental bulletin pape

    雰囲気を用いた楽曲検索システムの提案

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    指導教員:新美 礼彦thesi

    Incidence of apoptotic cells after vitrification in canine ovarian tissues

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    application/pdfAlthough vitrification and follicular survival subsequent to xenotransplantation of canine ovarian tissues have been reported, the degree of cryoinjury after the vitrification has not yet been fully examined. Since cryoinjury after vitrification of ovaries has been reported in bovine and humans, this study evaluated canine ovarian tissues after vitrification by immunohistochemistry and TUNEL assay. Ovaries were collected from immature bitches. The ovarian tissue cubes were pretreated with 1 M DMSO. Subsequently, DAP 213 solution (2 M DMSO, 1 M acetamide, 3 M propylene glycol) was added. The cryotubes containing the ovarian tissues were placed on ice for 5 min, then plunged directly into liquid nitrogen. After warming with 0.25 M sucrose, cryopreserved ovarian tissues were fixed and subsequently stained with hematoxylin-eosin, proliferation cell nuclear antigen (PCNA) antibody, or active caspase-3 (AC-3) antibody, and evaluated by the TUNEL assay. There were no differences in the numbers of primordial, primary, secondary and antral follicles/mm2 between the fresh and vitrified-warmed ovarian tissues. Percentages of PCNA and AC-3 antibody positive cells were similar regardless of the developmental stage of the follicles and experimental group. A few TUNEL positive cells were detected in both experimental groups. These results suggest that vitrification with DAP213 does not induce cryoinjury in ovarian tissues from immature bitches. c 2016 Japan Society for Ova Research.journal articl

    A Design Window Search Using Nonlinear Dynamic Simulation for Polymer Micro-machined Transmission in Insect-inspired Flapping wing Nano Air Vehicles

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    The novelty of this study is the proposition of a design window (DW) search using the nonlinear dynamic simulation, and the finding of the DWs of the polymer micro transmission that satisfies the nonlinear and unsteady design requirements conflicting with each other simultaneously. Here, the DW is defined as an existing area of satisfactory solutions in a design parameter space, which is defined as the flapping frequency equivalent to small flies and the mass of the micro wing supported by the transmission design. Since this micro transmission is the key component of the flapping wing nano air vehicle (FWNAVs) which has a 2.5-D structure and is fabricated using polymer micromachining so proposed DWs will contribute to further miniaturizing FWNAVs.2021 6th International Conference on Robotics and Automation Engineering (ICRAE), November 19-22, 2021, Guangzhou, Chinajournal articl

    Historiarum libri 8. Recogniti & illustrati

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