2,642 research outputs found
Cross-national Comparison of Political Participation and Social Contribution: Japan Survey Report - English Edition -
No full text統計数理研究所研究リポート98Principal Investigator：Matsumoto, WataruResearch Cooperator：Yoshino, Ryozo, Maeda, Tadahiko, Hayashi, Fumi, Yamaoka, Kazue, Miwa, Satoshi, Hoshino, Takahiro, Kanamori, Kyoko, Horiwa, Akira, Katano, Yohei, Shibai, Kiyohisa, Nishitate, Takashi, Nikaido, Kosuke, Kato, Takenari, Yamamoto, Hiroshi, Kumazawa, Junko, Aketaki, Son
Analysis of Autonomous Many-Body Particle Models from Geometric Perspective and Its Applications
No full textAutonomous many-body particle systems, such as traffic flow models, pedestrian
flow models, and molecular biology models, are very important targets that appear
in various fields. Since the behavior of these systems is essentially nonlinear and is
rich in variety and flexibility, it is important to grasp the whole picture of the system
not only numerically, but also through theoretical analysis.
For interacting systems of many-body particles, we have been studying
A. the development of analytical methods,
B. the investigation and extension of fundamental models
Cores and pH-dependent Dynamics of Ferredoxin-NADP+ Reductase Revealed by Hydrogen/Deuterium Exchange
No full textThis research was originally published in the Journal of Biological Chemistry. Young-Ho Lee, Kosuke Tamura, Masahiro Maeda, Masaru Hoshino, Kazumasa Sakurai, Satoshi Takahashi, Takahisa Ikegami, Toshiharu Hase, and Yuji Goto. Cores and pH-dependent Dynamics of Ferredoxin-NADP+ Reductase Revealed by Hydrogen/Deuterium Exchange. J. Biol. Chem. 2007; 282, 5959-5967. © the American Society for Biochemistry and Molecular Biolog
Effects of Activin A on the phenotypic properties of human periodontal ligament cells
No full textAbstract not availableHideki Sugii, Hidefumi Maeda, Atsushi Tomokiyo, Naohide Yamamoto, Naohisa Wada, Katsuaki Koori, Daigaku Hasegawa, Sayuri Hamano, Asuka Yuda, Satoshi Monnouchi, Akifumi Akamin
Nitrate Contamination of Groundwater and Soil Management
No full textThe Japanese Government set the environmental quality standard for nitrate (NO3) in groundwater at 10 mg N L1 in 1998, based on a level considered acceptable for avoiding infant methemoglobinemia. In 1998, 6.3% of groundwater in Japan contained NO3 exceeding 10 mg L¡¦, with agriculture regarded to be a primary source of the NO3 (Environmental Agency, Japan, 1999). This paper aims to define the mechanisms of NO3 contamination of groundwater associated with soil management in arable land.
The author gives an overview of the relation between nitrogen (N) fertilization and groundwater contamination. First of all, the utilization efficiency of N fertilizers for outdoor cultivation of vegetables is usually 50% or less (Nishio, 2001; Vance, 2001). Although N fertilizer is essential for crop production, excessive N could leach out of arable soils and eventually cause NO3 contamination of groundwater. However, conversely, excessive N is necessary as insurance in some cases, such as when there is heavy rainfall immediately after fertilization. It should be also noted that some vegetables physiologically require a high content of N in soil even at harvest.
Nitrate leaching from different fertilizers was monitored for 7 years and the data were evaluated using an N and water balance equation (Maeda et al., 2003). Excessive N from chemical fertilizers caused substantial NO3 leaching, while compost application was promising to achieve high yields and low N leaching during a few years but led to the same level of NO3 leaching as that in the plots subjected to chemical fertilizer application over longer periods of time. Thus, it is of importance to predict the N mineralization rates both for manure and for soil under natural conditions. Experimental results of this kind can provide full information on N dynamics in fields for policy decisions or regulations to reduce NO3 leaching while maintaining crop yields. Likewise, we must consider other influencing factors such as soil types, climatic conditions, and cropping systems for this purpose
On the Pursuit of Static and Coherent Weaving
No full textAspect-oriented programming (AOP) has been shown to be a useful
model for software development. Special care must be taken
when we try to adapt AOP to strongly typed functional languages
which come with features like type inference mechanism, polymorphic
types, higher-order functions and type-scoped pointcuts.
Specifically, it is highly desirable that weaving of aspect-oriented
functional programs can be performed statically and coherently. In
[13], we showed a type-directed weaver which resolves all advice
chainings coherently at static time. The novelty of this paper lies in
the extended framework which supports static and coherent weaving
in the presence of polymorphic recursive functions, advising
advice bodies and higher-order advices
Long-Term Results of Proton Therapy for Hepatocellular Carcinoma Using Four-Dimensional Computed Tomography Planning without Fiducial Markers
No full text博士論文 要旨Abstract/本文Full 以下に掲載：Cancers 14(23) pp.5842- 2022. MDPI（Multidisciplinary Digital Publishing Institute）. 共著者：Sayuri Bou, Shigeyuki Takamatsu, Sae Matsumoto, Satoko Asahi, Hitoshi Tatebe, Yoshitaka Sato, Mariko Kawamura, Satoshi Shibata, Tamaki Kondou, Yuji Tameshige, Yoshikazu Maeda, Makoto Sasaki, Kazutaka Yamamoto, Hajime Sunagozaka, Hiroyuki Aoyagi, Hiroyasu Tamamura, Satoshi Kobayashi, Toshifumi Gabat
Long-Term Results of Proton Therapy for Hepatocellular Carcinoma Using Four-Dimensional Computed Tomography Planning without Fiducial Markers
No full text金沢大学博士(医学）博士論文 要旨Abstract/本文Full 以下に掲載：Cancers 14(23) pp.5842- 2022. MDPI（Multidisciplinary Digital Publishing Institute）. 共著者：Sayuri Bou, Shigeyuki Takamatsu, Sae Matsumoto, Satoko Asahi, Hitoshi Tatebe, Yoshitaka Sato, Mariko Kawamura, Satoshi Shibata, Tamaki Kondou, Yuji Tameshige, Yoshikazu Maeda, Makoto Sasaki, Kazutaka Yamamoto, Hajime Sunagozaka, Hiroyuki Aoyagi, Hiroyasu Tamamura, Satoshi Kobayashi, Toshifumi Gabatadoctoral thesi
A Compilation Model for Aspect-Oriented Polymorphically Typed Functional Languages
No full textAbstract. Introducing aspect orientation to a polymorphically typed functional language strengthens the importance of type-scoped advices; i.e., advices with their effects harnessed by type constraints. As types are typically treated as compile time entities, it is highly desirable to be able to perform static weaving to determine at compile time the chaining of type-scoped advices to their associated join points. In this paper, we describe a compilation model, as well as its implementation, that supports static type inference and static weaving of programs in an aspect-oriented polymorphically typed lazy functional language, AspectFun. Wepresent a type-directed weaving scheme that coherently weaves type-scoped advices into the base program at compile time. We state the correctness of the static weaving with respect to the operational semantics of AspectFun. We also demonstrate how control-flow based pointcuts (such as cflowbelow) are compiled away, and highlight several type-directed optimization strategies that can improve the efficiency of woven code.
Discovery of a Difluoroglycine Synthesis Method through Quantum Chemical Calculations
No full textThe systematic exploration of synthetic pathways to afford a desired product through quantum chemical calculations remains a considerable challenge. In 2013, Maeda et al. introduced ‘quantum chemistry aided retrosynthetic analysis’ (QCaRA), which uses quantum chemical calculations to search systematically for decomposition paths of the target product and propose a synthesis method. However, until now, no new reactions suggested by QCaRA have been reported to lead to experimental discoveries. Using a difluoroglycine derivative as a target, this study investigated the ability of QCaRA to suggest various synthetic paths to the target without relying on previous data or the knowledge and experience of chemists. Furthermore, experimental verification of the seemingly most promising path led to the discovery of a synthesis method for the difluoroglycine derivative. The extent of the hands-on expertise of chemists required during the verification process was also evaluated. These insights are expected to advance the applicability of QCaRA to the discovery of viable experimental synthetic routes
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