A5021629128- Nuclear physics research studies
- Nuclear Physics and Applications
- Fish Ecology and Management Studies
- Atomic and Subatomic Physics Research
- Fish Biology and Ecology Studies
- Marine and fisheries research
- Animal health and immunology
- Innovation Diffusion and Forecasting
- Particle accelerators and beam dynamics
- Quantum, superfluid, helium dynamics
- Neutrino Physics Research
- Water Systems and Optimization
- Ruminant Nutrition and Digestive Physiology
- Innovation Policy and R&D
- Cancer, Hypoxia, and Metabolism
- Crystallography and Radiation Phenomena
- Autoimmune Bullous Skin Diseases
- Molecular Biology Techniques and Applications
- Quantum-Dot Cellular Automata
- Lipid metabolism and disorders
- Monoclonal and Polyclonal Antibodies Research
- Irrigation Practices and Water Management
- Astronomical and nuclear sciences
- Liver Disease Diagnosis and Treatment
- RNA modifications and cancer
The University of Tokyo
1970-2025
Tokyo Institute of Technology
2001-2003
Higashi Nagoya National Hospital
1999
RIKEN
1996
Akita University
1992-1995
Tokyo University of Science
1970
Diadromous fishes exhibit latitudinal clines of ocean dependency at inter- and intra-species levels. A pattern dependence high latitudes river low is explained by relative aquatic productivity. Such productivity may induce geographical variations in life-history diversity within migratory phenotypes. We hypothesized that the lifetime a regional salmonid would display cline increased higher latitudes. Freshwater growth rate decreased with latitudes, whereas marine was independent latitude....
Abstract Anadromous migration of salmonid fish has been extensively studied, primarily focusing on the dichotomous framework anadromy and residency. However, there remains a limited understanding intermediate migratory behaviors within anadromous framework. Our study aimed to classify lifetime patterns white-spotted charr Salvelinus leucomaenis among populations using otolith annuli Sr:Ca ratios. Initially, histories were divided into two stages: “virgin sea-run stage” “veteran stage”. The...
We report on the first production and identification of two neutron-rich nuclei $^{31}\mathrm{Ne}$ $^{37}\mathrm{Mg}$. They were produced in projectile fragmentation an 80A MeV $^{50}\mathrm{Ti}$ beam a $^{181}\mathrm{Ta}$ target, efficiently analyzed identified through fragment separator RIPS at RIKEN, by measuring magnetic rigidity, time flight, energy loss, total kinetic energy. The particle stability new isotopes is discussed comparison with various mass predictions. \textcopyright{}...
Abstract Understanding the habitat requirements of fishes throughout their life cycle is essential for effective conservation. Despite growing need to conserve anguillid eels, current understanding ontogenetic shifts during riverine stages remains limited, particularly Japanese eel Anguilla japonica and Indo‐Pacific marmorata . Here, changes in use these two species were investigated southern Japan rivers, where they coexist. Eels classified into total length (TL) classes at 10 cm intervals,...
The electric quadrupole moment Q for the ground state of ${}^{17}\mathrm{B}$ was determined by $\ensuremath{\beta}$-NMR method applied to spin-polarized projectile fragments. From measured coupling constant, $|{eqQ/h(}^{17}\mathrm{B}\mathrm{in}\mathrm{}\mathrm{Mg})|=137.4\ifmmode\pm\else\textpm\fi{}4.5\mathrm{kHz},$ in a Mg single crystal stopper deduced as $|{Q(}^{17}\mathrm{B})|=38.6\ifmmode\pm\else\textpm\fi{}1.5\mathrm{mb}.$ As case previous ${}^{15}\mathrm{B}$ result, obtained is very...
Although starvation poses a serious risk of death, it is common phenomenon among anadromous salmonids that fast after returning to the river following oceanic feeding migration. To address effects geographic environmental factors on their feeding, we examined patterns and condition sea-run migrants white-spotted char ( Salvelinus leucomaenis) in rivers with latitudinal variation from 38°N 46°N along Sea Japan. The showed significant trend: were observed feed at lower latitudes higher...
Views Icon Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Twitter Facebook Reddit LinkedIn Tools Reprints and Permissions Cite Search Site Citation T. Teranishi, S. Sakaguchi, Uesaka, H. Yamaguchi, Kubono, Hashimoto, Hayakawa, Y. Kurihara, D. N. Bihn, Kahl, Wakabayashi, L. Khiem, P. V. Cuong, Watanabe, A. Goto; Resonant scattering experiments with radioactive nuclear beams - Recent results future plans. AIP Conference Proceedings 19 April 2013; 1525 (1):...
低乳脂肪症候群では，乳脂率の低下が認められるが，臨床徴候を伴わないことが多く，その発見と改善が困難とされている．乳脂率の低下にはさまざまな要因が考えられ，第一胃内発酵環境の変化を伴う栄養的要因の他，品種間差，季節変動等が報告されている．管内一酪農場において，平成28 年度バルク乳中の乳脂率は，夏期に3.20%，冬期に3.35% と低値を示した．さらに平成29 年1 月の牛群検定において，乳脂率3.2% 未満の搾乳牛割合が33% であったことから，当該牛群を低乳脂肪症候群多発牛群と診断した．またバルク乳中の乳糖率は，夏期に変動を認めなかったものの，冬期に上昇を認めた．生産情報における冬期乳糖率の上昇，飼料分析結果における濃厚飼料給与割合の高値，ならびに農場モニタリングでの反芻個体割合の減少および糞便消化性スコア4 以上を示す個体を多数認めたことから，低乳脂肪症候群の要因として亜急性ルーメンアシドーシスの関与を疑い，農場の改善指導を行った．その結果，平成29 年度の夏期のバルク乳中乳脂率は3.60% 以上に改善した．また，改善指導によって牛群検定の個体乳脂率は3.29 ±...