655 research outputs found
Constrained superfields in dynamical background
No full text© 2022, The Author(s).We study the nonlinear realization of supersymmetry in a dynamical/cosmological background in which derivative terms like kinetic terms are finite. Starting from linearly realized theories, we integrate out heavy modes without neglecting derivative terms to obtain algebraic constraints on superfields. Thanks to the supersymmetry breaking contribution by the kinetic energy, the validity of constrained superfields can be extended to cosmological regimes and phenomena such as reheating after inflation, kinetic-energy domination, and the kinetic and standard misalignment of axion.11Nsciescopu
Swampland constraints on no-boundary quantum cosmology
No full text© 2020, The Author(s).The Hartle-Hawking no-boundary proposal describes the quantum creation of the universe. To have a non-negligible probability to obtain a classical expanding universe, eternal inflation is required, which is severely constrained by Swampland conjectures such as the refined de Sitter conjecture and the distance conjecture. We discuss this issue in detail and demonstrate the incompatibility. We show that the dimensionless parameters in the refined de Sitter conjecture should be bounded from above by a positive power of the scalar potential to realize the classical expanding universe. In other words, the probability of the classical expanding universe is extremely small under the Swampland conjectures unless the parameters are much smaller than unity. If they are order unity, on the other hand, the saddle-point solution itself ceases to exist implying a genuinely quantum universe11Nsciescopu
The Acceptance of Western Piano Music in Japan and the Career of Takahiro Sonoda
No full textTHE ACCEPTANCE OF WESTERN PIANO MUSIC IN JAPAN AND THE CAREER OF TAKAHIRO SONODABy: Mari IidaMajor Professor: Dr. Edward Gates, D.M.Western music was almost completely unknown until 1853 when Japan opened the country to the world. However, recently, young Japanese pianists have become very active in the field of international piano competitions. And Western classical-music concerts flourish in Japan to this day. It is obvious that Western music is rooted firmly in Japan. The author considers that there is a need of a succinct account that traces the progress of acceptance and popularization of Western music in Japan.The purpose of this study is twofold; to reveal how Japanese people, who had no Western music tradition, reached this high level of understanding of Western music, especially Western classical piano music; and to provide a focus on the career of Takahiro Sonoda, the first internationally recognized Japanese concert pianist. It observes the process of acceptance and popularization together with concurrent social and political phenomena and deals with many figures and events that the author found significant and worthy of documentation.Part one of the study, entitled "The Period of Acceptance," is devoted to a historical background related to pianists and teachers before 1928. It describes the drastic Westernization by the newly established Meiji government, which included adoption of Western music as a part of a national compulsory education curriculum. This government-led Western music education planted the seed of Western music in Japan.Part two, entitled "The Period of Challenge," concerns musical events from 1928 to today and focuses on a biographical survey of Sonoda. It is a history of the challenge of closing the musical gap between Japan and the West. The performance techniques of Japanese musicians were advanced by the rise of musical media, the immigration of European musicians, the diversification of school music programs, and the success of domestic piano mass production.The author found that the accomplishment of Western music acceptance and popularization was a natural outcome of the trajectory that began with the Meiji restoration and the opening of Japan to the West. Sonoda's achievement represents the last stage of 150 years of challenge and progress by Japanese pianists
4次元可解ソリトンに対応する部分多様体の極小性について
No full textIn our previous study, the author and Tamaru proved that a left invariant Riemannian metric on a three-dimensional simply-connected solvable Lie group is a solvsoliton if and only if the corresponding sub manifold is minimal. In this paper, we study the minimality of the corresponding sub manifolds to solvsolitons on four-dimensional cases. In four-dimensional nilpotent cases, we prove that a left-invariant Riemannian metric is a nilsoliton if and only if the corresponding sub manifold is minimal. On the other hand, there exists a four-dimensional simply-connected solvable Lie group so that the above correspondence does not hold. More precisely, there exists a solvsoliton whose corresponding sub manifold is not minimal, and a left-invariant Riemannian metric which is not solvsoliton and whose corresponding sub manifold is minimal.広島大学(Hiroshima University)博士(理学)Sciencedoctora
Helicobacter pylori感染に伴う慢性胃炎粘膜におけるTP53遺伝子変異の蓄積
No full textThis dissertation is author version of following the journal article. Takahiro Shimizu, Hiroyuki Marusawa, Yuko Matsumoto, Tadashi Inuzuka, Atsuyuki Ikeda, Yosuke Fujii, Sachiko Minamiguchi, Shin’ichi Miyamoto, Tadayuki Kou, Yoshiharu Sakai, Jean E. Crabtree, Tsutomu Chiba, Accumulation of Somatic Mutations in TP53 in Gastric Epithelium With Helicobacter pylori Infection, Gastroenterology, Volume 147, Issue 2, August 2014, Pages 407-417.e3, ISSN 0016-5085, http://dx.doi.org/10.1053/j.gastro.2014.04.036.京都大学0048新制・課程博士博士(医学)甲第18543号医博第3936号新制||医||1006(附属図書館)31443京都大学大学院医学研究科医学専攻(主査)教授 羽賀 博典, 教授 小川 誠司, 教授 武藤 学学位規則第4条第1項該当Doctor of Medical ScienceKyoto UniversityDFA
モルモットにおけるオゾン曝露による鼻アレルギー様病態増悪作用の濃度依存性
No full text筑波大学University of Tsukuba博士（医学）Doctor of Philosophy in Medical Sciences2003【要旨】Joint author: Takahiro Kobayashithesi
Development of a single-stage mainstream anammox process using a sponge-bed trickling filter
No full textAnaerobic ammonia oxidation to nitrogen gas using nitrite as the electron acceptor (anammox process) is considered a cost-effective solution for nitrogen removal after an anaerobic pre-treatment process. In this study, we conducted a laboratory-scale experiment to develop a single-stage partial nitritation–anammox process in a sponge-based trickling filter (STF) reactor, inoculated with anammox sludge, simulating the treatment of anaerobically pretreated concentrated domestic sewage without mechanical oxygen control. The influent ammonia concentration was 100 mg-N·L−1. The KLa of the STF reactor was higher than those observed for conventional activated sludge processes. The STF reactor performed at 89.8 ± 8.2% and 42.7 ± 16.9% ammonia and TN removal efficiency, respectively, with a nitrogen loading rate of 0.55 ± 0.20 kg-N·m−3·day−1 calculated based on sponge volume. Microbial community analysis of the STF-retained sludge indicated that both autotrophic and heterotrophic nitrogen removal occurred in the reactor.Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Sanitary Engineerin
Non-Gaussian noise and data analysis of laser interferometric gravitational wave detectors
No full textOn shouting “fire!”: regulating decoupled communication in distributed systems
No full textDecoupled communication, which requires no direct association between the producers of information and its consumers—as under the publish/subscribe (P/S) middleware —is often useful for the integration of distributed and heterogeneous applications. But the indefinite, and potentially global, reach of decoupled communication—the very reason for its power—has a dark side, which may complicate the system using it, making it less predictable, more brittle, and less safe. Just think about the effect of shouting “fire” in a packed theatre, particularly, but not only, if it is a false alarm.
It is our thesis that the inherent drawbacks of decoupled communication can be alleviated by decentralized regulation of its use. We show how such regulation can be carried out scalably by means of a distributed control mechanism called Law-Governed Interaction (LGI), and a middleware called Moses that implements this mechanism. And we illustrate the importance of such regulation, and its effectiveness, by considering the treatment of alarms in a large hospital.Technical report DCS-TR-51
A unified framework for exceptions in workflow/process models -- an approach based on persistent objects
No full textThe need for exibility in workows and the problem of unanticipated exceptions are well recognized, and in fact a number of solutions have already been proposed in areas such as computer-supported collaborative work and software process modeling. On the other hand, workow systems frequently maintain forms and other information in databases, and there is also strong evidence for the need to consider exceptions to the constraints imposed by the schema on the data in databases. This paper presents a framework for treating both kinds of exceptions uniformly by applying ideas from programming language exception handling (but where the responsible agents of workows are allowed to handle exceptions on-line) to a situation where most aspects of workows have been rei ed as persistent ob jects in special classes and with special attributes. As a result, only a small number of new constructs need to be introduced, and power is achieved through orthogonality. Unlike most previous work, the framework pays particular attention to the consequences of permitting deviations from the norm to persist, in part by de ning exceptions as violations of constraints and then developing a taxonomy of constraints. Also as a departure from prior e orts, the paper takes the view that the evolution of the schema (workow or data) is a di erent problem from that of individual exceptions, but that a limited form of incremental evolution { providing exception handlers ahead of time { is a useful abstraction mechanism to help organize the details of complex workows.Technical report DCS-TR-35
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