Institution
Utsunomiya University
Education•Utsunomiya, Japan•
About: Utsunomiya University is a education organization based out in Utsunomiya, Japan. It is known for research contribution in the topics: Laser & Holography. The organization has 4139 authors who have published 6812 publications receiving 91975 citations. The organization is also known as: Utsunomiya daigaku.
Topics: Laser, Holography, Polarization (waves), Plasma, Dielectric
Papers published on a yearly basis
Papers
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University of Minnesota1, Smithsonian Tropical Research Institute2, Paul Sabatier University3, University of Toronto4, Princeton University5, University of Peradeniya6, Louisiana State University7, Wildlife Conservation Society8, University of Georgia9, Osaka City University10, Forest Research Institute Malaysia11, Nanyang Technological University12, Organization for Tropical Studies13, Utsunomiya University14, Indian Institute of Science15, Tunghai University16, University of Puerto Rico, Río Piedras17, Pontificia Universidad Católica del Ecuador18, University of California, San Diego19, University of Buea20, Florida State University21, University of Missouri–St. Louis22, Thammasat University23, Oregon State University24
TL;DR: There are no universal scaling relationships of growth or mortality with size among trees in tropical forests, and a set of alternative predictions were developed that retained some assumptions of metabolic ecology while also considering how availability of a key limiting resource, light, changes with tree size.
Abstract: The theory of metabolic ecology predicts specific relationships among tree stem diameter, biomass, height, growth and mortality. As demographic rates are important to estimates of carbon fluxes in forests, this theory might offer important insights into the global carbon budget, and deserves careful assessment. We assembled data from 10 oldgrowth tropical forests encompassing censuses of 367 ha and > 1.7 million trees to test the theory’s predictions. We also developed a set of alternative predictions that retained some assumptions of metabolic ecology while also considering how availability of a key limiting resource, light, changes with tree size. Our results show that there are no universal scaling relationships of growth or mortality with size among trees in tropical forests. Observed patterns were consistent with our alternative model in the one site where we had the data necessary to evaluate it, and were inconsistent with the predictions of metabolic ecology in all forests.
317 citations
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TL;DR: The most successful teacher induction programs reported in this article include opportunities for experts and neophytes to learn together in a supportive environment promoting time for collaboration, reflection and acculturation into the profession of teaching.
Abstract: How does one become an effective teacher? What can be done to stem high attrition rates among beginning teachers? While many teachers are left to ‘sink or swim’ in their first year—learning by trial and error, there remain a number of outstanding examples of collaboration and collegiality in teacher induction programs. Analysis of the most exemplary teacher induction programs from Australia, Britain, Canada, France, Germany, Japan, New Zealand and the United States revealed common attributes and exceptional features. The most successful teacher induction programs reported here include opportunities for experts and neophytes to learn together in a supportive environment promoting time for collaboration, reflection and acculturation into the profession of teaching. Furthermore, several practices unique to specific regions were highlighted. These included extended internship programs, specially trained mentors, comprehensive inservice training and reduced teaching assignments for beginning teachers with an e...
302 citations
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TL;DR: The simulation of the laser-plasma interaction revealed the existence of ultrahigh-gradient wake fields excited due to self-modulation of the lasers pulse and its electron acceleration, consistent with the experimental results.
Abstract: A laser pulse with a power of $\ensuremath{\sim}3$ TW and a duration of 1 ps has been focused onto a gas. Ultrahigh-gradient electron acceleration has been observed in the laser-produced plasma with a density of $\ensuremath{\sim}{10}^{19}$ c${\mathrm{m}}^{\char21{}3}$ when injecting 1 MeV $/c$ electrons. The simulation of the laser-plasma interaction revealed the existence of ultrahigh-gradient wake fields excited due to self-modulation of the laser pulse and its electron acceleration, consistent with the experimental results.
291 citations
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TL;DR: Distinct reductions in shoot P levels were observed in plants grown under N deficiency, except for tomato, in which shoot P level was increased by N starvation, suggesting that the P status of the shoot regulates SL exudation.
Abstract: Plants exude strigolactones (SLs) to attract symbiotic arbuscular mycorrhizal fungi in the rhizosphere. Previous studies have demonstrated that phosphorus (P) deficiency, but not nitrogen (N) deficiency, significantly promotes SL exudation in red clover, while in sorghum not only P deficiency but also N deficiency enhances SL exudation. There are differences between plant species in SL exudation under P- and N-deficient conditions, which may possibly be related to differences between legumes and non-legumes. To investigate this possibility in detail, the effects of N and P deficiencies on SL exudation were examined in Fabaceae (alfalfa and Chinese milk vetch), Asteraceae (marigold and lettuce), Solanaceae (tomato), and Poaceae (wheat) plants. In alfalfa as expected, and unexpectedly in tomato, only P deficiency promoted SL exudation. In contrast, in Chinese milk vetch, a leguminous plant, and in the other non-leguminous plants examined, N deficiency as well as P deficiency enhanced SL exudation. Distinct reductions in shoot P levels were observed in plants grown under N deficiency, except for tomato, in which shoot P level was increased by N starvation, suggesting that the P status of the shoot regulates SL exudation. There seems to be a correlation between shoot P levels and SL exudation across the species/families investigated.
280 citations
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TL;DR: In this paper, the effect of surface modification with 3-aminopropyltriethoxysilane (APTES) and n-propyltriethyltrihexilanes (PTES) on photo-catalytic activity and UV-shielding ability of fine TiO2 particles were investigated.
270 citations
Authors
Showing all 4148 results
Name | H-index | Papers | Citations |
---|---|---|---|
Kazuhito Hashimoto | 120 | 781 | 61195 |
Yoshinori Yamamoto | 85 | 950 | 28130 |
S. Uehara | 78 | 602 | 23493 |
Minghua Liu | 74 | 679 | 20727 |
Akira Fujishima | 70 | 299 | 69335 |
Satoshi Hasegawa | 69 | 708 | 22153 |
Donald A. Tryk | 67 | 240 | 25469 |
Hiromu Suzuki | 65 | 250 | 15241 |
Kunio Arai | 64 | 293 | 15022 |
Kazuo Suzuki | 63 | 507 | 17786 |
Jin Wang | 60 | 196 | 10435 |
James B. Reid | 60 | 246 | 11773 |
Richard L. Smith | 59 | 302 | 11420 |
Isao Kubo | 58 | 303 | 11291 |
Takao Yokota | 57 | 245 | 11813 |