1,457 results on '"Chuo University"'
Search Results
2. An Exoskeleton Type 4-DOF Force Feedback Device Using Magnetorheological Fluid Clutches and Artificial Muscles
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Yuki Onozuka, Ryo Suzuki, Yasuyuki Yamada, Taro Nakamura, and Chuo University
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0209 industrial biotechnology ,Computer science ,02 engineering and technology ,Virtual reality ,021001 nanoscience & nanotechnology ,Exoskeleton ,020901 industrial engineering & automation ,Magnetorheological fluid ,Torque ,Artificial muscle ,Haptic perception ,0210 nano-technology ,Actuator ,Simulation ,ComputingMethodologies_COMPUTERGRAPHICS ,Haptic technology - Abstract
Recently, virtual reality (VR) technology has been developed using a head mounted displays (HMD). Users can recognize virtual objects easily in a VR space. However, users cannot obtain haptic perception, such as operating actual objects. There are force feedback devices that can render its perception. General devices are desktop types which restrict the range of motion (ROM) of operators, whereas exoskeleton types achieve ROM like a human. Many force feedback devices using motors and decelerators lead to a loss of backdrivability and can harm the operator by active force. Therefore, we developed an exoskeleton type four degrees of freedom (DOF) force feedback device for the upper limb with magnetorheological fluid clutches and artificial muscles that are backdrivable and safe actuators; we confirmed that the proposed device can render an elastic force.
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- 2018
- Full Text
- View/download PDF
3. Dependences of the Optical Absorption, Ground State Energy Level, and Interfacial Electron Transfer Dynamics on the Size of CdSe Quantum Dots Adsorbed on the (001), (110), and (111) Surfaces of Single Crystal Rutile TiO2
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Department of Engineering Science, The University of Electro-Communications, Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Agency (JST), Bunkoukeiki Co., Department of Applied Chemistry, Chuo University, Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology, Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Agency (JST), Toyoda, Taro, Shen, Qing, Kamiyama, Keita, Katayama, Kenji, Hayase, Shuzi, Department of Engineering Science, The University of Electro-Communications, Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Agency (JST), Bunkoukeiki Co., Department of Applied Chemistry, Chuo University, Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology, Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Agency (JST), Toyoda, Taro, Shen, Qing, Kamiyama, Keita, Katayama, Kenji, and Hayase, Shuzi
- Abstract
type:Journal Article, Quantum dots (QDs) provide an attractive alternative sensitizer to organic dyes. However, there have been few reports on QD-sensitized solar cells (QDSCs) that have photovoltaic conversion efficiencies exceeding those of dye-sensitized solar cells. This is because of the lack of fundamental studies of QDs on conventional nanocrystalline metal oxide electrodes which possess much amount of heterogeneity. An important first step is an investigation of the dependences of the optical absorption, the ground state energy level, and the interfacial electron transfer (IET) on the size of QDs deposited on well characterized single crystal oxides. The present study focuses on a system of CdSe QDs adsorbed on the (001), (110), and (111) surfaces of single crystal rutile-TiO2. The optical absorption spectra, characterized using photoacoustic spectroscopy, were found to be independent of the surface orientation concerning the optical absorption edge. The exponential optical absorption tail (Urbach tail) suggests that the disorder decreases with the increasing size of the QDs and is independent of the surface orientation. The ground state energy levels of the QDs were characterized using photoelectron yield spectroscopy. That on the (001) surface shifts upward, while that on the (110) surface shifts downward with increasing QD size. That on the (111) surface is independent of the QD size, indicating the difference of the influence of the surface orientation on adsorption of the QDs. The IET rate constant and the relaxation component were characterized. The IET rate constant was found to decrease as the size of the QDs increases and depends on the surface orientation, indicating the differences in the decrease of the free energy change and lower coupling between the excited state of CdSe QDs and the Ti 3d orbitals in rutile-TiO2. The relaxation component increases with increasing QD size and depends on the surface orientation, correlating with the density of states in the conductio, source:DOI:10.1021/acs.jpcc.7b09371
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- 2018
4. Slow hot carrier cooling in cesium lead iodide perovskites
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Department of Engineering Science, Faculty of Informatics and Engineering, The University of Electro-Communications, Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology, Fonctions Optiques pour les Technologies de l'information, Department of Electrical and Electronic Engineering, Miyazaki University, Department of Electrical and Electronic Engineering, Faculty of Science and Engineering, Ritsumeikan University, Department of Applied Chemistry, Faculty of Science and Engineering, Chuo University, Shen, Qing, Ripolles, Teresa S., Even, Jacky, Ogomi, Yuhei, Nishinaka, Koji, Izuishi, Takuya, Nakazawa, Naoki, Zhang, Yaohong, Ding, Chao, Liu, Feng, Toyoda, Taro, Yoshino, Kenji, Minemoto, Takashi, Katayama, Kenji, Hayase, Shuzi, Department of Engineering Science, Faculty of Informatics and Engineering, The University of Electro-Communications, Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology, Fonctions Optiques pour les Technologies de l'information, Department of Electrical and Electronic Engineering, Miyazaki University, Department of Electrical and Electronic Engineering, Faculty of Science and Engineering, Ritsumeikan University, Department of Applied Chemistry, Faculty of Science and Engineering, Chuo University, Shen, Qing, Ripolles, Teresa S., Even, Jacky, Ogomi, Yuhei, Nishinaka, Koji, Izuishi, Takuya, Nakazawa, Naoki, Zhang, Yaohong, Ding, Chao, Liu, Feng, Toyoda, Taro, Yoshino, Kenji, Minemoto, Takashi, Katayama, Kenji, and Hayase, Shuzi
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type:Journal Article, Lead halide perovskites are attracting a great deal of interest for optoelectronic applications such as solar cells, LEDs, and lasers because of their unique properties. In solar cells, heat dissipation by hot carriers results in a major energy loss channel responsible for the Shockley–Queisser efficiency limit. Hot carrier solar cells offer the possibility to overcome this limit and achieve energy conversion efficiency as high as 66% by extracting hot carriers. Therefore, fundamental studies on hot carrier relaxation dynamics in lead halide perovskites are important. Here, we elucidated the hot carrier cooling dynamics in all-inorganic cesium lead iodide (CsPbI3) perovskite using transient absorption spectroscopy. We observe that the hot carrier cooling rate in CsPbI3 decreases as the fluence of the pump light increases and the cooling is as slow as a few 10 ps when the photoexcited carrier density is 7 × 1018 cm−3, which is attributed to phonon bottleneck for high photoexcited carrier densities. Our findings suggest that CsPbI3 has a potential for hot carrier solar cell applications., source:https://doi.org/10.1063/1.4991993
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- 2018
5. Ligand-dependent exciton dynamics and photovoltaic properties of PbS quantum dot heterojunction solar cells
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Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Centre for Advanced Materials (SICAM), Nanjing Tech University, Faculty of Informatics and Engineering, The University of Electro-Communications, Faculty of Life Science and Systems Engineering, Kyushu Institute of Technology, CREST, Japan Science and Technology Agency (JST), Faculty of Informatics and Engineering, The University of Electro-Communications, Faculty of Informatics and Engineering, The University of Electro-Communications, CREST, Japan Science and Technology Agency (JST), Department of Applied Chemistry, Chuo University, Chang, Jin, Ogomi, Yuhei, Ding, Chao, Zhang, Yao Hong, Toyoda, Taro, Hayase, Shuzi, Katayama, Kenji, Shen, Qing, Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Centre for Advanced Materials (SICAM), Nanjing Tech University, Faculty of Informatics and Engineering, The University of Electro-Communications, Faculty of Life Science and Systems Engineering, Kyushu Institute of Technology, CREST, Japan Science and Technology Agency (JST), Faculty of Informatics and Engineering, The University of Electro-Communications, Faculty of Informatics and Engineering, The University of Electro-Communications, CREST, Japan Science and Technology Agency (JST), Department of Applied Chemistry, Chuo University, Chang, Jin, Ogomi, Yuhei, Ding, Chao, Zhang, Yao Hong, Toyoda, Taro, Hayase, Shuzi, Katayama, Kenji, and Shen, Qing
- Abstract
type:Journal Article, The surface chemistry of colloidal quantum dots (QDs) plays an important role in determining the photoelectric properties of QD films and the corresponding quantum dot heterojunction solar cells (QDHSCs). To investigate the effects of the ligand structure on the photovoltaic performance and exciton dynamics of QDHSCs, PbS QDHSCs were fabricated by the solid state ligand exchange method with mercaptoalkanoic acid as the cross-linking ligand. Temperature-dependent photoluminescence and ultrafast transient absorption spectra show that the electronic coupling and charge transfer rate within QD ensembles were monotonically enhanced as the ligand length decreased. However, in practical QDHSCs, the second shortest ligand 3-mercaptopropionic acid (MPA) showed higher power conversion efficiency than the shortest ligand thioglycolic acid (TGA). This could be attributed to the difference in their surface trap states, supported by thermally stimulated current measurements. Moreover, compared with the non-conjugated ligand MPA, the conjugated ligand 4-mercaptobenzoic acid (MBA) introduces less trap states and has a similar charge transfer rate in QD ensembles, but has poor photovoltaic properties. This unexpected result could be contributed by the QD–ligand orbital mixing, leading to the charge transfer from QDs to ligands instead of charge transfer between adjacent QDs. This work highlights the significant effects of ligand structures on the photovoltaic properties and exciton dynamics of QDHSCs, which would shed light on the further development of QD-based photoelectric devices.
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- 2018
6. Das Zeitalter der Internationalisierung und die Wiederbelebung der regional vorhandenen historischen Materialien :Der Fall von Tsutomu Takeshima und der Stadt Chichibu in Mori ^Ogai: Die
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Masashi, Kaneda and Chuo University
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- 2013
7. 中国人日本語学習者にみる発話末韻律の知覚 : イントネーションとリズムの聴取実験
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YABE,Hiroko, NISHINUMA,Yukihiro, HAYASHI,Akiko, YABE,Hiroko(International Student Exchange Center, Tokyo Gakugei University), NISHINUMA,Yukihiro(LPL, CNRS), and HAYASHI,Akiko(Chuo University)
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Chinese ,韻律知覚 ,リズム ,Japanese ,日本語母語話者 ,ピッチ ,第二言語学習者 ,perception of rhythm ,L2 prosody ,ETYP:教育関連論文 ,perception of pitch - Published
- 2010
8. Discourse Analysis of Utterance by Advanced- and Superior-LevelJapanese Non-native Speakers and Japanese Native Speakers Basedon ACTFL-OPI Criteria
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Chikako, OGIWARA, Mariko, SAITO, Masako, MASUDA, Yukiyo, YONEDA, Tokumi, ITO, Waseda University, International Education Center, Bunka Women'sUniversity, Chuo University, International Center, Osaka University International Student Center, and Iwatani College of Business
- Abstract
本研究は、上・超級日本語学習者の発話の特徴を明らかにすることを目指し、ACTFL (全米外国語教育協会)から日本語の OPI テスト(口頭面接テスト)のテスター認定を受けた試験官が行なったものである。OPI テストの録音テープから、超級、上級の上・中・下の各々の典型的なものを選んで分析対象とし、母語話者とも比較した。まず、話題の種類と述べ方から発話内容領域という概念を設け、それを3つの領域---I.身近な具体的事実を直接的に言う、II.個人的一般的関心事の具体的事実を詳述する、III.抽象的内容を論じる--- に分けた。各被験者の発話について、この発話内容領域を軸として、試験官の要求への対応・発話の構成・談話の形・文法能力(語彙の広がり、誤用、言い直し、接続表現)を分析した結果、上・超級話者の各レベルの発話の特徴を具体的に示した。また、上級から超級への移行の過程が明らかになった。全分析項目において、なだらかな発達がみられるわけではなく、発話の構成・抽象的表現の使用・言い直し・接続表現・誤用などの項目では、上級と超級で大きい違いがみられた。また、発話内容領域によっても、レベル差が大きく現れる項目が異なっていた。これらの結果から、いくつかの分析項目では、ACTFL-OPI の基準で示されているレベル変化とは異なる、大きく変化する段階があることも分かった。さらに今回行なった母語話者との比較から、超級話者のほうが母語話者より論理的に話したり、和語を多く使用することが認められた。, This research was conducted by a group of Japanese-language Oral Proficiency Interview (OPI) testers certified by the American Council on the Teaching of Foreign Languages (ACTFL). The purpose of the research is to clarify major characteristics of advanced- and superior-level non-native speakers. This research began by selecting tapes that represent typical lower advanced, middle advanced, upper advanced, and superior speech for detailed analysis. Tapes of Japanese native speakers were also selected and included for comparison. This article first categorizes the topics or themes of conversation into three fields: (1) predictable, familiar topics; (2) topics of personal general interest; and (3) wide range of general-interest topics. Second, in relation to these categorized content fields, this research explains the discourse structure, the rate of success in structuring an extended discourse and a paragraph, the variety of conjunctions, kango, and wago used,idiomatic expressions and onomatopoeic words used, and the number and the types of self-corrections. The result of this research shows a clear picture of major characteristics of advanced and superior-level speakers. It also suggests the feature of the progress from advanced to superior levels. Distinct difference was observed between advanced and superior level speakers in discourse structure, usage of abstract expressions, self-corrections, usage of conjunctions, and grammatical mistakes. In case of accomplishments of the tasks and the text types in treating the second field theme, clear difference was observed between advanced-low and advanced-mid speakers. Whereas in case of the text types in treating the third field theme, there was a clear distinction between advanced-mid and advanced-high speakers. The above results suggest the existence of some other levels than the one described in OPI criteria.
- Published
- 2001
9. Migration mechanism in defect metal hydrides containing superabundant vacancies
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Chuo University, The University of Tokyo, Universität Leipzig, Sugimoto, Hidehiko, Fukai, Yuh, Chuo University, The University of Tokyo, Universität Leipzig, Sugimoto, Hidehiko, and Fukai, Yuh
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- 2015
10. Bayesian estimation of discrete choice models : labor supply of multiple household members
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Faculty of Commerce Chuo University, Matsuno, Kazuhiko, Faculty of Commerce Chuo University, and Matsuno, Kazuhiko
- Abstract
The aim of this paper is to estimate models for labor supply probabilityof household members by using Bayesian procedures. Our modelsdescribe the labor supply behavior of multiple household members. Particularly,we deal with the behavior of households with one, two or threenon-principal earners (a wife and/or children). The related literaturemainly studies the labor supply of one non-principal earner. The modelsare of discrete choice or qualitative response type to yield a laborsupply probability that non-principal earners accept an employment opportunity.We apply Bayesian estimation methods to the models and carry outempirical tests of the models using Japanese data.Douglas law of labor supply shows that the labor participation rateof wives are negatively correlated with husband's income. This law hasbeen reconfirmed by empirical analyses of household-level surveys.Although the analyses are limited to a case of one non-principal earner,it may be possible to say that the labor supply of multiple non-principalearners is also negatively correlated with husband's income.The situation is, however, complicated when we consider householdswith multiple household members. In fact, it is difficult to define laboruparticipation rate at a household level when the household has multiplenon-principal earners. We may define the rate as a ratio of number ofparticipants to that of non-principal earners within a household. We needa theoretical basis for the definition. We need a model to describe thelabor supply behavior of households with multiple non-principal earners.For this purpose we provide a general discrete choice model. Three modelsfor labor supply are derived from it.In applications of Bayesian methods, a difficult problem is how toformulate prior distributions. The diffuse or uniform prior distributionis usually employed. In this study we take up Bayesian methods for estimatingone model to incorporate the information obtained in the priorestimation of other models. We al
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- 1992
11. 水泳運動が児童の身体に及ぼす影響について
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Shibata, Yoshiharu, Yoshimura, Yutaka, Irisawa, Masanori, Iwami, Tetsuo, Shibata, Yoshiharu(Department of Health and Physical Education, Tokyo Gakugei University), Yoshimura, Yutaka(Chuo University), Irisawa, Masanori(Graduate student of Tokyo Gakugei University), and Iwami, Tetsuo(Graduate student of Tokyo Gakugei University)
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- 1987
12. Formulation of a quantal response model and its application to the labor supply of married females facing multiple employment opportinities
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Faculty of Commerce Chuo University, Matsuno, Kazuhiko, Faculty of Commerce Chuo University, and Matsuno, Kazuhiko
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We set forth a model for the labor supply of wives.Based on the income-leisure preference theory, the model describesthe behavior of wives to whom multiple employment opportunitiesare open. It is assumed that each of the employment opportunitiesoffered to the wives has a fixed wage rate and fixed working hours.The model is thus discrete as one of multiple options is chosen.The analysis shows that the model is an ordered quantal responsemodel where the choice set autonomously changes itself. The modelis tested using cross-section observation., This-paper is a revised and extended version of theauthor's paper presented at the Fifth InternationalSymposium on Forecasting, 1985.
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- 1988
13. Machine tool calibration: Measurement, modeling, and compensation of machine tool errors
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Wei Gao, Soichi Ibaraki, M. Alkan Donmez, Daisuke Kono, J.R.R. Mayer, Yuan-Liu Chen, Károly Szipka, Andreas Archenti, Jean-Marc Linares, Norikazu Suzuki, Tohoku University [Sendai], Hiroshima University, National Institute of Standards and Technology [Boulder] (NIST), Kyoto University, École Polytechnique de Montréal (EPM), Zhejiang University, Royal Institute of Technology [Stockholm] (KTH ), Institut des Sciences du Mouvement Etienne Jules Marey (ISM), Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS), and Chuo University (Chuo University)
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Measurement ,Machine tool ,Mechanical Engineering ,Uncertainty ,calibration ,Industrial and Manufacturing Engineering ,[SPI.MECA.GEME]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Mechanical engineering [physics.class-ph] ,machine learning ,[INFO.INFO-LG]Computer Science [cs]/Machine Learning [cs.LG] ,error separation ,Calibration ,Machine learning ,machine tool ,measurement ,Self-calibration ,uncertainty - Abstract
International audience; Advanced technologies for the calibration of machine tool are presented. Geometric, kinematic, thermally-induced and load-induced errors are classified into errors within one-axis as intra-axis errors, errors between axes as inter-axis errors, and as volumetric errors. As the major technological elements of machine tool calibration, the measurement methods, mathematical models and compensation approaches of the machine tool errors are addressed. The criteria for selecting a combination of the technological elements for machine tool calibration from the point of view of accuracy, complexity, and cost are provided. Recent applications of artificial intelligence and machine learning in machine tool calibration are introduced. Remarks are also made on future trends in machine tool calibration.
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- 2023
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14. Quasi-point versus point nodes in Sr2RuO4, the case of a flat tight binding γ sheet
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Pedro L. Contreras E., D. Osorio, S. Tsuchiya, Universidad de Los Andes [Venezuela] (ULA), University of Pavia, Department of Physics, Chuo University, and Chuo University (Chuo University)
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Wigner distribution probabilities ,FOS: Physical sciences ,General Physics and Astronomy ,non-magnetic disorder ,Computational material design PACS numbers: 34.80.Bm ,Education ,Superconductivity (cond-mat.supr-con) ,Point nodes ,Triplet reversal time broken state ,γ sheet ,Elastic scattering crosssection ,Quasi-point nodes ,[PHYS]Physics [physics] ,Flat bands ,Condensed Matter - Superconductivity ,Disordered Systems and Neural Networks (cond-mat.dis-nn) ,Computational Physics (physics.comp-ph) ,Condensed Matter - Disordered Systems and Neural Networks ,74.62.Dh ,72.10.-d ,Tiny gap ,74.70.-b ,Sr2RuO4 ,72.80.Ng ,Physics - Computational Physics ,Unconventional superconductivity ,74.20.-z ,74.70.Dd - Abstract
We perform a numerical study of the unitary regime as a function of disorder concentration in the imaginary part of the elastic scattering cross-section for the compound $Sr_2RuO_4$ in the flat band non-disperse limit. By using a self-consistent tight-binding (TB) method, we find a couple of families of Wigner probabilistic functions that help to explain macroscopically the distribution between Fermion dressed quasiparticles and Cooper pairs, and also the position of nodes in the order parameter for $Sr_2RuO_4$. Therefore, we are able to show that a TB model for the $\gamma$ sheet numerically shows 4 point nodes in a flat $\gamma$ sheet limit or 4 quasi-point nodes for strong dispersion $\gamma$ sheet limit in the reduced phase scattering space (RPS)., Comment: 19 pages, 4 figures, 44 references
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- 2021
15. Gambierol blocks a K$^+$ current fraction and affects action potential duration and the firing rate in rat fetal chromaffin cells
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Molgó, Jordi, Bournaud, Roland, Schlumberger, Sébastien, Sasaki, Makoto, Fuwa, Haruhiko, Benoit, Evelyne, Service d'Ingénierie Moléculaire pour la Santé (ex SIMOPRO) (SIMoS), Médicaments et Technologies pour la Santé (MTS), Université Paris-Saclay-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université Paris-Saclay-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), SIMOPRO, Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Laboratoire de neurobiologie cellulaire et moléculaire (NBCM), Centre National de la Recherche Scientifique (CNRS), Department of Biomolecular Sciences, Graduate School of Life Sciences, Tohoku University [Sendai], Chuo University (Chuo University), This study was supported in part by the project ALERTOX-NET (EAPA_317/2016), funded by the Interreg Atlantic program, and in part by the CNRS., The International Society for the Study of Harmful Algae (ISSHA), Band Schmidt C.J., and Rodríguez Gómez C.F.
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Gambierol ,marine biotoxin ,[SDV.TOX]Life Sciences [q-bio]/Toxicology ,[SDV.NEU]Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC] ,potassium channels - Abstract
The dinoflagellate genus Gambierdiscus, particularly Gambierdiscus toxicus is known to produce numerous ladder polycyclic ether compounds, including gambierol, characterized by a transfused octacyclic polyether core, as well as the identified ciguatoxins responsible for ciguatera poisoning. Gambierol inhibits voltage-gated K+ (KV) channels in various mammalian excitable and nonexcitable cells, and motor nerve terminals of the neuromuscular junction. In the present study, we investigated the action of gambierol on outward K+ currents of cultured rat fetal adrenal medulla chromaffin cells using the whole-cell configuration voltage-clamp method. The pharmacological dissection of the outward K+ current, using selective K+ channel inhibitors, revealed that gambierol reduced just a small fraction of the total outward current without affecting calcium-activated K+ currents that were sensitive to apamin and iberiotoxin, and ATP-sensitive K+ currents sensitive to glibenclamide. Cultured fetal chromaffin cells were excitable and generated either evoked (upon direct electric stimulation) or spontaneous action potentials. These action potentials were sensitive to tetrodotoxin that blocks voltage-gated Na+ (NaV) channels. Gambierol neither affected the rising phase nor the overshoot of action potentials but significantly prolonged their repolarizing phase and increased the firing rate of action potentials during sustained current depolarization, as determined using current-clamp recordings. Our results highlight the effects of gambierol on KV channels and on the electrical properties of rat fetal chromaffin cells. It is likely that gambierol may cross the placental barrier as ciguatoxins do. Further studies are needed to determine whether such actions may have deleterious effects on fetuses.
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- 2021
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16. The critical role of urease in yogurt fermentation with various combinations of Streptococcus thermophilus and Lactobacillus delbrueckii ssp. bulgaricus
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M. Hosokawa, E. Maguin, Y. Sasaki, H. Horiuchi, R. Yamauchi, Meiji University, MICrobiologie de l'ALImentation au Service de la Santé (MICALIS), Institut National de la Recherche Agronomique (INRA)-AgroParisTech, Meiji Co ltd, Partenaires INRAE, and Chuo University (Chuo University)
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Streptococcus thermophilus ,Urease ,Protocooperation ,[SDV]Life Sciences [q-bio] ,ved/biology.organism_classification_rank.species ,Economic shortage ,yogurt fermentation ,protocooperation ,Ammonia nitrogen ,03 medical and health sciences ,Lactobacillus ,Genetics ,Animals ,Food science ,030304 developmental biology ,urease ,2. Zero hunger ,Lactobacillus delbrueckii ,0303 health sciences ,biology ,Strain (chemistry) ,Chemistry ,ved/biology ,0402 animal and dairy science ,food and beverages ,04 agricultural and veterinary sciences ,Yogurt ,equipment and supplies ,biology.organism_classification ,040201 dairy & animal science ,Fermentation ,Mutation ,biology.protein ,Animal Science and Zoology ,Food Science - Abstract
International audience; The protocooperation between Streptococcus thermophilus and Lactobacillus delbrueckii ssp. bulgaricus relies on metabolite exchanges that accelerate acidification during yogurt fermentation. Conflicting results have been obtained in terms of the effect of the Strep. thermophilus urease and the NH3 and CO2 that it generates on the rate of acidification in yogurt fermentation. It is difficult to perform a systematic study of the effects of urease on protocooperation because it is necessary to distinguish among the direct, indirect, and strain-specific effects resulting from the combination of the strains of both species. To evaluate the direct effects of urease on protocooperation, we generated 3 urease-deficient mutants (Delta ureC) of fast- and slow-acidifying Strep. thermophilus strains and observed the effects of NH3 or CO2 supplementation on acidification by the Delta ureC strains. Further, we examined 5 combinations of 3 urease-deficient Delta ureC strains with 2 CO2-responsive or CO2 -unresponsive strains of L. bulgaricus. Urease deficiency induced a shortage of ammonia nitrogen and CO2 for the fast- and slow-acidifying Strep. thermophilus and for the CO2-responsive L. bulgaricus, respectively. Notably, the shortage of ammonia nitrogen had more severe effects than that of CO2 on yogurt fermentation, even if coculture with L. bulgaricus masked the effect of urease deficiency. Our work established (1) that urease deficiency inhibits the fermentative acceleration of protocooperation regardless of the Strep. thermophilus and L. bulgaricus strain combinations, and (2) that urease is an essential factor for effective yogurt acidification.
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- 2019
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17. Important questions to progress science and sustainable management of anguillid eels
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Claude Belpaire, Gaël Simon, Robert Schabetsberger, Kazuki Yokouchi, Elisabeth Faliex, John M. Casselman, Håkan Westerberg, Hendrik Dörner, David Righton, Martin Castonguay, Alan Walker, Elsa Amilhat, Niklas Sjöberg, Michael J. Miller, Matthew Gollock, Kieran McCarthy, Adam T. Piper, Céline Hanzen, Nobuto Fukuda, Eric Feunteun, Don Jellyman, Kristen Steele, Kenzo Kaifu, Thomas C. Pratt, Reinhold Hanel, Estibaliz Diaz, Katsumi Tsukamoto, Kim Aarestrup, Hiromi Shiraishi, Pierre Sasal, Centre for Environment, Fisheries and Aquaculture Science [Lowestoft] (CEFAS), University of East Anglia [Norwich] (UEA), Zoological Society of London - ZSL (UNITED KINGDOM), Danmarks Tekniske Universitet = Technical University of Denmark (DTU), Centre de Formation et de Recherche sur les Environnements Méditérranéens (CEFREM), Université de Perpignan Via Domitia (UPVD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Research Institute for Nature and Forest (INBO), Queen's University [Kingston, Canada], Pêches et Oceans Canada, AZTI - Tecnalia, European Commission - Joint Research Centre [Ispra] (JRC), Biologie des Organismes et Ecosystèmes Aquatiques (BOREA), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA), Japan Fisheries Research and Education Agency (FRA), Thünen Institute, University of KwaZulu-Natal [Durban, Afrique du Sud] (UKZN), National Institute of Water and Atmosphere [Hamilton] (NIWA), Chuo University (Chuo University), National University of Ireland [Galway] (NUI Galway), The University of Tokyo (UTokyo), NOAA Great Lakes Environmental Research Laboratory (GLERL), National Oceanic and Atmospheric Administration (NOAA), Centre de recherches insulaires et observatoire de l'environnement (CRIOBE), Université de Perpignan Via Domitia (UPVD)-École Pratique des Hautes Études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), University of Salzburg, Swedish University of Agricultural Sciences (SLU), University College of London [London] (UCL), Laboratoire d'Excellence CORAIL (LabEX CORAIL), Université des Antilles (UA)-Institut d'écologie et environnement-Université de la Nouvelle-Calédonie (UNC)-Université de la Polynésie Française (UPF)-Université de La Réunion (UR)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-École pratique des hautes études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École des hautes études en sciences sociales (EHESS)-Université des Antilles et de la Guyane (UAG)-Institut de Recherche pour le Développement (IRD), Université de Perpignan Via Domitia (UPVD)-École pratique des hautes études (EPHE), Technical University of Denmark [Lyngby] (DTU), Université de Perpignan Via Domitia (UPVD)-Centre National de la Recherche Scientifique (CNRS), Institut Maurice -Lamontagne, Ministère des Pêches et des Océans, Thünen Institute of Fisheries Ecology, and University of KwaZulu-Natal (UKZN)
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0106 biological sciences ,Lifecycle ,Human life ,Ecology (disciplines) ,[SDV]Life Sciences [q-bio] ,Climate change ,global management ,Conservation ,Management, Monitoring, Policy and Law ,Aquatic Science ,Oceanography ,01 natural sciences ,SDG 3 - Good Health and Well-being ,Global management ,SDG 13 - Climate Action ,Carrying capacity ,14. Life underwater ,impacts ,Population status ,Environmental planning ,Ecology, Evolution, Behavior and Systematics ,ComputingMilieux_MISCELLANEOUS ,010604 marine biology & hydrobiology ,conservation ,04 agricultural and veterinary sciences ,lifecycle ,Adaptive management ,Habitat ,Sustainable management ,Impacts ,Fish and Aquacultural Science ,040102 fisheries ,0401 agriculture, forestry, and fisheries - Abstract
International audience; Anguillid eels are found globally in fresh, transitional and saline waters and have played an important role in human life for centuries. The population status of several species is now of significant concern. The threats to populations include direct exploitation at different life stages, blockages to migratory routes by dams and other structures, changes in river basin management that impact habitat carrying capacity and suitability, pollution, climate change, diseases and parasites. While much has been done to understand eel biology and ecology, a major challenge is to identify the key research and management questions so that effective and targeted studies can be designed to inform conservation, management and policy. We gathered 30 experts in the field of eel biology and management to review the current state of knowledge for anguillid eel species and to identify the main topics for research. The identified research topics fell into three themes: (a) Lifecycle and Biology; (b) Impacts and (c) Management. Although tropical anguillid eels are by far the least well understood, significant knowledge gaps exist for all species. Considerable progress has been made in the last 20 years, but the status of many species remains of great concern, particularly for northern temperate species. Without improved engagement and coordination at the regional, national and international level, the situation is unlikely to improve. Further, adaptive management mechanisms to respond to developments in science, policy and our knowledge of potential threats are required to ensure the future of these important and enigmatic species.
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- 2021
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18. Olympic Games and tourism : an ex ante analysis of arrival intentions - The cases of Tokyo 2020 and Paris 2024
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Delaplace, Marie, Moussi-Beylie, Florian, Schaffar, Alexandra, Takayuki, Arima, Minami, Soichiro, Tetsuo, Akyama, Beyrand, Nicolas, LAB'URBA (LAB'URBA), Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Université Gustave Eiffel, Université Paris-Est (UPE), Université de Toulon (UTLN), Yokohama City University (YCU), Policy Research Institute for Land, Infrastructure, Transport and Tourism, Chuo University (Chuo University), and Labo, Lab'Urba
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[SHS.ARCHI]Humanities and Social Sciences/Architecture, space management ,[SHS.ARCHI] Humanities and Social Sciences/Architecture, space management ,ComputingMilieux_MISCELLANEOUS - Abstract
International audience
- Published
- 2021
19. Gambierol Blocks a K+ Current Fraction without Affecting Catecholamine Release in Rat Fetal Adrenomedullary Cultured Chromaffin Cells
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Evelyne Benoit, Sébastien Schlumberger, Jordi Molgó, Makoto Sasaki, Haruhiko Fuwa, Roland Bournaud, Service d'Ingénierie Moléculaire pour la Santé (ex SIMOPRO) (SIMoS), Médicaments et Technologies pour la Santé (MTS), Université Paris-Saclay-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université Paris-Saclay-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Institut des Sciences du Vivant Frédéric JOLIOT (JOLIOT), Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Laboratoire de neurobiologie cellulaire et moléculaire (NBCM), Centre National de la Recherche Scientifique (CNRS), Tohoku University [Sendai], and Chuo University (Chuo University)
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fetal adrenomedullary chromaffin cell ,gambierol ,potassium currents ,calcium-activated K+ channels ,ATP-sensitive K+ channels ,catecholamine release ,ATP-sensitive K$^+$ channels ,[SDV.TOX]Life Sciences [q-bio]/Toxicology ,[SDV.NEU.NB]Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC]/Neurobiology ,Health, Toxicology and Mutagenesis ,Toxicology - Abstract
International audience; Gambierol inhibits voltage-gated K+ (KV) channels in various excitable and non-excitable cells. The purpose of this work was to study the effects of gambierol on single rat fetal (F19–F20) adrenomedullary cultured chromaffin cells. These excitable cells have different types of KV channels and release catecholamines. Perforated whole-cell voltage-clamp recordings revealed that gambierol (100 nM) blocked only a fraction of the total outward K$^+$ current and slowed the kinetics of K$^+$ current activation. The use of selective channel blockers disclosed that gambierol did not affect calcium-activated K$^+$ (KCa) and ATP-sensitive K$^+$ (KATP) channels. The gambierol concentration necessary to inhibit 50% of the K$^+$ current-component sensitive to the polyether (IC50) was 5.8 nM. Simultaneous whole-cell current-clamp and single-cell amperometry recordings revealed that gambierol did not modify the membrane potential following 11s depolarizing current-steps, in both quiescent and active cells displaying repetitive firing of action potentials, and it did not increase the number of exocytotic catecholamine release events, with respect to controls. The subsequent addition of apamin and iberiotoxin, which selectively block the KCa channels, both depolarized the membrane and enhanced by 2.7 and 3.5-fold the exocytotic event frequency in quiescent and active cells, respectively. These results highlight the important modulatory role played by KCa channels in the control of exocytosis from fetal (F19–F20) adrenomedullary chromaffin cells.
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- 2022
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20. Evaluation of eight nonlinear crystals for phase-matched Terahertz second-order difference-frequency generation at room temperature
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Jean-François Roux, Patricia Segonds, Dominique Lupinski, Kevin T. Zawilski, Zhang Xinyuan, Benoît Boulanger, Hiroaki Minamide, Jean-Louis Coutaz, Ichiro Shoji, Hiromasa Ito, Cyril Bernerd, Emilie Hérault, Jérôme Debray, Peter G. Schunemann, Zhanggui Hu, Jiyang Wang, Optique et Matériaux (OPTIMA), Institut Néel (NEEL), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), Cristaux Massifs (CrisMass), Institut de Microélectronique, Electromagnétisme et Photonique - Laboratoire d'Hyperfréquences et Caractérisation (IMEP-LAHC), Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Department of Information and System Engineering [Tokyo], Chuo University (Chuo University), RIKEN Center for Advanced Photonics [Wako] (RIKEN RAP), RIKEN - Institute of Physical and Chemical Research [Japon] (RIKEN), Cristal Laser SA, BAE Systems, Inc., Tianjin University (TJU), and Shandong University
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Materials science ,business.industry ,Terahertz radiation ,Phase (waves) ,02 engineering and technology ,021001 nanoscience & nanotechnology ,01 natural sciences ,Electronic, Optical and Magnetic Materials ,Terahertz spectroscopy and technology ,Coherence length ,010309 optics ,Wavelength ,0103 physical sciences ,[SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic ,Optoelectronics ,0210 nano-technology ,business ,Spectroscopy ,Absorption (electromagnetic radiation) ,Refractive index ,ComputingMilieux_MISCELLANEOUS - Abstract
Using terahertz time-domain spectroscopy, we report the principal values of absorption coefficients and refractive indices as a function of wavelength between 0.5 and 2.0 THz of eight attractive nonlinear crystals: YCOB, BNA, LBO, CSP, AGS, CdSe, ZnO and GaP. From these data, we calculated the coherence length and phase-matching conditions associated to the emission of a THz wave from a second-order difference-frequency generation.
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- 2020
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21. Probing Molecules next to Surfaces
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Benoît Darquié, Isabelle Maurin, T. Mashimo, Daniel Bloch, J. Lukusa Mudiayi, Athanasios Laliotis, Laboratoire de Physique des Lasers (LPL), Université Paris 13 (UP13)-Centre National de la Recherche Scientifique (CNRS), Chuo University (Chuo University), Laliotis, Athanasios, Department of Physics, Chuo University, (T Mashimo) séjour finacé par programme franco-japonais Sakura), and Bloch, Daniel
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[PHYS.PHYS.PHYS-OPTICS] Physics [physics]/Physics [physics]/Optics [physics.optics] ,0301 basic medicine ,Materials science ,02 engineering and technology ,Molecular physics ,[PHYS.PHYS.PHYS-AO-PH] Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] ,[PHYS] Physics [physics] ,03 medical and health sciences ,[PHYS.QPHY]Physics [physics]/Quantum Physics [quant-ph] ,HITRAN ,Atom ,Molecule ,molecules ,[PHYS.PHYS.PHYS-ATOM-PH] Physics [physics]/Physics [physics]/Atomic Physics [physics.atom-ph] ,Spectroscopy ,[PHYS.QPHY] Physics [physics]/Quantum Physics [quant-ph] ,ComputingMilieux_MISCELLANEOUS ,Photonic crystal ,[PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] ,[PHYS]Physics [physics] ,[PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics] ,[PHYS.PHYS.PHYS-ATOM-PH]Physics [physics]/Physics [physics]/Atomic Physics [physics.atom-ph] ,Resolution (electron density) ,molecule-surface interactions ,021001 nanoscience & nanotechnology ,Chirality (electromagnetism) ,sub-Doppler resolution ,030104 developmental biology ,Excited state ,molecular spectroscopy ,ComputingMethodologies_GENERAL ,0210 nano-technology ,SF6 ,selective reflection - Abstract
Selective reflection spectroscopy at normal incidence provides signals with sub-Doppler resolution, linear with optical intensity. Frequency modulated (FM) selective reflection probes atomic vapours at distances comparable to the excitation wavelength (∼λ/2π) and is used extensively to probe the Casimir-Polder interactions between an excited state atom and a macroscopic surface. Extending selective reflection spectroscopy to molecular gases allows probing a thin layer of molecular gas next to a surface. This is a very attractive prospect that allows envisaging high-resolution molecular spectroscopy and molecular frequency references in a compact and miniaturised apparatus, such as a thin cell [1] or a photonic crystal [2]. Additionally, it paves the way for spectroscopic probing of the Casimir-Polder interaction with molecules. The molecule-surface interaction has been the object of extensive theoretical investigations, focusing on the effects of molecular orientation and chirality. However, experimental tests are few and comparison with theoretical predictions has been challenging [3].
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- 2019
22. Aggregate fluctuations and the distribution of firm growth rates
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Le Li, Giulio Bottazzi, Angelo Secchi, Scuola Universitaria Superiore Sant'Anna [Pisa] (SSSUP), Chuo University (Chuo University), Paris School of Economics (PSE), École des Ponts ParisTech (ENPC)-École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris 1 Panthéon-Sorbonne (UP1)-Centre National de la Recherche Scientifique (CNRS)-École des hautes études en sciences sociales (EHESS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Paris Jourdan Sciences Economiques (PJSE), Université Paris 1 Panthéon-Sorbonne (UP1)-École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École des hautes études en sciences sociales (EHESS)-École des Ponts ParisTech (ENPC)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Scuela Superiore Sant'Anna di Pisa, and Université Panthéon-Sorbonne (UP1)-École normale supérieure - Paris (ENS Paris)-Institut National de la Recherche Agronomique (INRA)-École des hautes études en sciences sociales (EHESS)-École des Ponts ParisTech (ENPC)-Centre National de la Recherche Scientifique (CNRS)
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Economics and Econometrics ,Sample average ,Aggregate growth ,Central tendency ,media_common.quotation_subject ,05 social sciences ,Firm growth rates asymmetry and volatility ,Aggregate economic fluctuations and business cycles ,Regression analysis ,Aggregation of non-normal variables ,[SHS.ECO]Humanities and Social Sciences/Economics and Finance ,Asymmetry ,8. Economic growth ,0502 economics and business ,Predictive power ,Econometrics ,050207 economics ,Volatility (finance) ,Scaling ,050203 business & management ,media_common ,Mathematics - Abstract
International audience; We propose an aggregate growth index that explicitly accounts for fat tails in the firm size distribution and for the negative scaling relation between the size of the firm and the volatility of its growth rates. Using Compustat data on US publicly traded company, we show that the new index tracks aggregate fluctuations much better than simpler measures of central tendency of the dynamics of firms, like the growth rates sample average, confirming that the statistical properties characterizing the micro-economic dynamics of firms are relevant for the dynamics of the aggregate. To better characterize the origins of aggregate fluctuations, we decompose the index in two parts, describing, respectively, the modal (typical) value of log growth rates and the tilt (asymmetry) of their distribution. Regression analysis shows that models based on this decomposition, despite their simplicity, possess a remarkable explanatory and predictive power with respect to the aggregate growth.
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- 2019
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- View/download PDF
23. Parameterized Complexity of Safe Set
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Michael Lampis, Ioannis Katsikarelis, Tesshu Hanaka, Rémy Belmonte, Yota Otachi, Hirotaka Ono, autre, AUTRES, Chuo University (Chuo University), Laboratoire d'analyse et modélisation de systèmes pour l'aide à la décision (LAMSADE), Université Paris Dauphine-PSL, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Department of Mathematical Informatics, The University of Tokyo (UTokyo), Kumamoto Gakuen University, Gakuen University, University of Electro-Communications [Tokyo] (UEC), and Nagoya University
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FOS: Computer and information sciences ,General Computer Science ,0211 other engineering and technologies ,Vertex cover ,Parameterized complexity ,Pathwidth ,0102 computer and information sciences ,02 engineering and technology ,Computational Complexity (cs.CC) ,01 natural sciences ,Theoretical Computer Science ,Vulnerability parameter ,Combinatorics ,Set (abstract data type) ,Polynomial kernel ,Clique-width ,0202 electrical engineering, electronic engineering, information engineering ,[INFO]Computer Science [cs] ,ComputingMilieux_MISCELLANEOUS ,Mathematics ,Connected component ,021103 operations research ,Safe set ,Double exponential function ,020206 networking & telecommunications ,Graph ,Computer Science Applications ,Computer Science - Computational Complexity ,Computational Theory and Mathematics ,010201 computation theory & mathematics ,020201 artificial intelligence & image processing ,Geometry and Topology - Abstract
In this paper we study the problem of finding a small safe set S in a graph G, i.e. a non-empty set of vertices such that no connected component of G[S] is adjacent to a larger component in \(G - S\). We enhance our understanding of the problem from the viewpoint of parameterized complexity by showing that (1) the problem is W[2]-hard when parameterized by the pathwidth \(\mathsf {pw}\) and cannot be solved in time \(n^{o(\mathsf {pw})}\) unless the ETH is false, (2) it admits no polynomial kernel parameterized by the vertex cover number \(\mathsf {vc}\) unless \(\mathrm {PH} = \varSigma ^{\mathrm {p}}_{3}\), but (3) it is fixed-parameter tractable (FPT) when parameterized by the neighborhood diversity \(\mathsf {nd}\), and (4) it can be solved in time \(n^{f(\mathsf {cw})}\) for some double exponential function f where \(\mathsf {cw}\) is the clique-width. We also present (5) a faster FPT algorithm when parameterized by solution size.
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- 2019
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24. Optically controlled nano-etching through nearly-forbidden transitions enhanced by the surface structure
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TOJO, S., Mashimo, T., Abe, M., YATSUI, T., Yamaguchi, M., Tsuboi, T., Nobusada, K., Stehlin, F., Soppera, O., Bloch, D., Bloch, Daniel, Department of Physics, Chuo University, Chuo University (Chuo University), The University of Tokyo (UTokyo), Laboratoire de Physique des Lasers (LPL), Université Paris 13 (UP13)-Centre National de la Recherche Scientifique (CNRS), National Institute for Materials Science (NIMS), Institute for Molecular Sciences, National Institutes of Natural Sciences, Institut de Science des Matériaux de Mulhouse (IS2M), Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Matériaux et nanosciences d'Alsace (FMNGE), Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Réseau nanophotonique et optique, Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA), and Projet bilateral France-Japon Sakura
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[PHYS.PHYS.PHYS-OPTICS] Physics [physics]/Physics [physics]/Optics [physics.optics] ,[PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics] ,[PHYS.PHYS.PHYS-ATOM-PH]Physics [physics]/Physics [physics]/Atomic Physics [physics.atom-ph] ,photodissoictaion ,nano-etching ,[SPI.GPROC] Engineering Sciences [physics]/Chemical and Process Engineering ,magnetic optical transition ,[SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering ,ComputingMethodologies_GENERAL ,[PHYS.PHYS.PHYS-ATOM-PH] Physics [physics]/Physics [physics]/Atomic Physics [physics.atom-ph] ,ComputingMilieux_MISCELLANEOUS ,forbidden transition - Abstract
poster; International audience
- Published
- 2019
25. Independent Set Reconfiguration Parameterized by Modular-Width
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Yota Otachi, Michael Lampis, Tesshu Hanaka, Rémy Belmonte, Hirotaka Ono, autre, AUTRES, Chuo University (Chuo University), Laboratoire d'analyse et modélisation de systèmes pour l'aide à la décision (LAMSADE), Université Paris Dauphine-PSL, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Department of Mathematical Informatics, The University of Tokyo (UTokyo), Kumamoto Gakuen University, Gakuen University, University of Electro-Communications [Tokyo] (UEC), and Nagoya University
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FOS: Computer and information sciences ,General Computer Science ,Open problem ,Independent set ,Parameterized complexity ,0102 computer and information sciences ,02 engineering and technology ,01 natural sciences ,Computer Science - Data Structures and Algorithms ,0202 electrical engineering, electronic engineering, information engineering ,Bandwidth (computing) ,[INFO]Computer Science [cs] ,Data Structures and Algorithms (cs.DS) ,ComputingMilieux_MISCELLANEOUS ,Mathematics ,Discrete mathematics ,business.industry ,Applied Mathematics ,Control reconfiguration ,Modular design ,Modular-width ,Computer Science Applications ,010201 computation theory & mathematics ,Bounded function ,Theory of computation ,Reconfiguration ,020201 artificial intelligence & image processing ,business - Abstract
Independent Set Reconfiguration is one of the most well-studied problems in the setting of combinatorial reconfiguration. It is known that the problem is PSPACE-complete even for graphs of bounded bandwidth. This fact rules out the tractability of parameterizations by most well-studied structural parameters as most of them generalize bandwidth. In this paper, we study the parameterization by modular-width, which is not comparable with bandwidth. We show that the problem parameterized by modular-width is fixed-parameter tractable under all previously studied rules TAR, TJ, and TS. The result under TAR resolves an open problem posed by Bonsma [WG 2014, JGT 2016]., Comment: 14 pages, 1 figure, WG 2019
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- 2019
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26. Nearly-forbidden optical Transitions, Nanooptics, opals
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Bloch, D., LEITE, J.R. RIOS, Klimov, V.V., Ducloy, M., YATSUI, T., TOJO, S., Soppera, O., Moufarej, E., Laliotis, A., Zabkov, I., Laboratoire de Physique des Lasers (LPL), Université Paris 13 (UP13)-Centre National de la Recherche Scientifique (CNRS), Université Fédérale de Pernambuco, P. N. Lebedev Physical Institute of the Russian Academy of Sciences [Moscow] (LPI RAS), Russian Academy of Sciences [Moscow] (RAS), The University of Tokyo (UTokyo), Department of Physics, Chuo University, Chuo University (Chuo University), Institut de Science des Matériaux de Mulhouse (IS2M), Centre National de la Recherche Scientifique (CNRS)-Matériaux et nanosciences d'Alsace (FMNGE), Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Réseau nanophotonique et optique, Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA), Branch of Quantum Radio physics, Frequency Standard Laboratory, and Russian Academy of Sciences [Moscow] (RAS)-Russian Academy of Sciences [Moscow] (RAS)
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[PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics] ,[PHYS.PHYS.PHYS-ATOM-PH]Physics [physics]/Physics [physics]/Atomic Physics [physics.atom-ph] - Abstract
presentation orale 20 mn par D Bloch; International audience
- Published
- 2018
27. Excitation enhancement in optical forbidden transitions near nano structure
- Author
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Tojo, Satoshi, Mashimo, Taro, Abe, Masashi, Bloch, Daniel, Chuo University (Chuo University), Laboratoire de Physique des Lasers (LPL), Université Paris 13 (UP13)-Centre National de la Recherche Scientifique (CNRS), PHC Sakura Frace Japon 38603TH, and Bloch, Daniel
- Subjects
[PHYS.PHYS.PHYS-OPTICS] Physics [physics]/Physics [physics]/Optics [physics.optics] ,[PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics] ,nanostructure ,[PHYS.PHYS.PHYS-ATOM-PH]Physics [physics]/Physics [physics]/Atomic Physics [physics.atom-ph] ,ComputingMethodologies_GENERAL ,[PHYS.PHYS.PHYS-ATOM-PH] Physics [physics]/Physics [physics]/Atomic Physics [physics.atom-ph] ,ComputingMilieux_MISCELLANEOUS ,forbidden transition - Abstract
poster présenté par S. Tojo; International audience
- Published
- 2018
28. The Maxwell-Boltzmann velocity distribution and other limiting conditions at the boundary of a gas vapor
- Author
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Bloch, Daniel, Todorov, Petko, Carvalho, João Carlos de Aquino, Laliotis, Athanasios, Maurin, Isabelle, Mudiayi, Junior Lukusa, Ducloy, Martial, Villalba, Santiago, Failache, Horacio, Lezama, Arturo, Yatsui, Takashi, Tojo, Satoshi, Soppera, Olivier, Bloch, Daniel, Laboratoire de Physique des Lasers (LPL), Université Paris 13 (UP13)-Centre National de la Recherche Scientifique (CNRS), Instituto de Fisica, Facultad de Ingenieria, Universita de la Republica, The University of Tokyo (UTokyo), Department of Physics, Chuo University, Chuo University (Chuo University), Photomatériaux pour l'Optique et les Nanotechnologies (PHOTON LRC 7228), Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA)), BNSF Grant (Bulgaria) No. DMU 02/17ECOS U14-01 +LIA franco uruguayenSakura 38603TH, Université de SDtuttgart _ I, and Gerhardt and R Low
- Subjects
[PHYS.PHYS.PHYS-CLASS-PH]Physics [physics]/Physics [physics]/Classical Physics [physics.class-ph] ,[PHYS.PHYS.PHYS-ATOM-PH]Physics [physics]/Physics [physics]/Atomic Physics [physics.atom-ph] ,[PHYS.PHYS.PHYS-GEN-PH] Physics [physics]/Physics [physics]/General Physics [physics.gen-ph] ,[PHYS.PHYS.PHYS-CLASS-PH] Physics [physics]/Physics [physics]/Classical Physics [physics.class-ph] ,[PHYS.PHYS.PHYS-ATOM-PH] Physics [physics]/Physics [physics]/Atomic Physics [physics.atom-ph] ,[PHYS.PHYS.PHYS-GEN-PH]Physics [physics]/Physics [physics]/General Physics [physics.gen-ph] - Abstract
Communication orale 30 mn présentée par D Blochaudience de la conférence : environ 90 participants; International audience
- Published
- 2018
29. Parameterized Orientable Deletion
- Author
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Tesshu Hanaka, Florian Sikora, Ioannis Katsikarelis, Yota Otachi, Michael Lampis, Chuo University (Chuo University), Laboratoire d'analyse et modélisation de systèmes pour l'aide à la décision (LAMSADE), Université Paris Dauphine-PSL, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Kumamoto Gakuen University, Gakuen University, autre, and AUTRES
- Subjects
[INFO.INFO-CC]Computer Science [cs]/Computational Complexity [cs.CC] ,FOS: Computer and information sciences ,General Computer Science ,Computer science ,Treewidth ,[INFO.INFO-DS]Computer Science [cs]/Data Structures and Algorithms [cs.DS] ,Parameterized complexity ,0102 computer and information sciences ,02 engineering and technology ,[INFO.INFO-DM]Computer Science [cs]/Discrete Mathematics [cs.DM] ,Computational Complexity (cs.CC) ,01 natural sciences ,Computer Science - Data Structures and Algorithms ,0202 electrical engineering, electronic engineering, information engineering ,FOS: Mathematics ,Mathematics - Combinatorics ,[INFO]Computer Science [cs] ,Data Structures and Algorithms (cs.DS) ,ComputingMilieux_MISCELLANEOUS ,Discrete mathematics ,Graph orientations ,000 Computer science, knowledge, general works ,Applied Mathematics ,Digraph ,FPT algorithms ,Graph ,Computer Science Applications ,Computer Science - Computational Complexity ,010201 computation theory & mathematics ,Theory of computation ,Computer Science ,SETH ,020201 artificial intelligence & image processing ,Combinatorics (math.CO) ,MathematicsofComputing_DISCRETEMATHEMATICS - Abstract
A graph is $d$-orientable if its edges can be oriented so that the maximum in-degree of the resulting digraph is at most $d$. $d$-orientability is a well-studied concept with close connections to fundamental graph-theoretic notions and applications as a load balancing problem. In this paper we consider the d-ORIENTABLE DELETION problem: given a graph $G=(V,E)$, delete the minimum number of vertices to make $G$ $d$-orientable. We contribute a number of results that improve the state of the art on this problem. Specifically: - We show that the problem is W[2]-hard and $\log n$-inapproximable with respect to $k$, the number of deleted vertices. This closes the gap in the problem's approximability. - We completely characterize the parameterized complexity of the problem on chordal graphs: it is FPT parameterized by $d+k$, but W-hard for each of the parameters $d,k$ separately. - We show that, under the SETH, for all $d,\epsilon$, the problem does not admit a $(d+2-\epsilon)^{tw}$, algorithm where $tw$ is the graph's treewidth, resolving as a special case an open problem on the complexity of PSEUDOFOREST DELETION. - We show that the problem is W-hard parameterized by the input graph's clique-width. Complementing this, we provide an algorithm running in time $d^{O(d\cdot cw)}$, showing that the problem is FPT by $d+cw$, and improving the previously best known algorithm for this case.
- Published
- 2018
- Full Text
- View/download PDF
30. Optically controlled magnetic-field etching on the nano-scale
- Author
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TOJO, S., Mashimo, T., Abe, M., YATSUI, T., Yamaguchi, M., Tsuboi, T., Nobusada, K., Stehlin, F., Soppera, O., Bloch, D., Department of Physics, Chuo University, Chuo University (Chuo University), The University of Tokyo (UTokyo), Institute for Molecular Sciences, National Institutes of Natural Sciences, Institut de Science des Matériaux de Mulhouse (IS2M), Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS), Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Matériaux et nanosciences d'Alsace (FMNGE), Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Réseau nanophotonique et optique, Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA), Laboratoire de Physique des Lasers (LPL), and Université Paris 13 (UP13)-Centre National de la Recherche Scientifique (CNRS)
- Subjects
[PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics] ,[PHYS.PHYS.PHYS-ATOM-PH]Physics [physics]/Physics [physics]/Atomic Physics [physics.atom-ph] ,[PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci] ,ComputingMilieux_MISCELLANEOUS - Abstract
National audience
- Published
- 2017
31. Value Creation in Management Accounting and Strategic Management
- Author
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Satoshi Sugahara, Nabyla Daidj, Sumitaka Ushio, Télécom SudParis & Institut Mines-Télécom Business School, Médiathèque, Innovation, entrepreneurship, management series. Diverse and global perspectives on value creation, Kwansei Gakuin University, Département Systèmes d'Information (DSI), Télécom Ecole de Management (TEM)-Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom Business School (IMT-BS), Institut Mines-Télécom [Paris] (IMT), Laboratoire en Innovation, Technologies, Economie et Management (EA 7363) (LITEM), Université d'Évry-Val-d'Essonne (UEVE)-Télécom Ecole de Management (TEM), Chuo University (Chuo University), LITEM-NPR, and Département Systèmes d'Information (IMT-BS - DSI)
- Subjects
[SHS.GESTION]Humanities and Social Sciences/Business administration ,[SHS.GESTION] Humanities and Social Sciences/Business administration - Abstract
International audience; This book explores two combined approaches (strategy and accounting) from a cross-disciplinary perspective in order to improve knowledge of value creation in various contexts. Existing studies on this topic have generally adopted a purely account-based or strategy-oriented approach to address this issue. However, this book draws upon a number of well-defined theoretical and empirical backgrounds and methodologies. Since the 1980s, many changes have occurred and companies have increasingly focused their strategies on value creation. Consequently, new strategic directions have emerged, especially for managerial accounting. Management accounting and alignment with strategy could thus improve performance. This book encourages further thought and reflection on these issues which should be pursued in the future as firms face new challenges associated with the acceleration of digital transformation.
- Published
- 2017
- Full Text
- View/download PDF
32. Spectroscopic study on optically controlled magnetic-field etching on the nano-scale
- Author
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TOJO, S., Mashimo, T., Abe, M., YATSUI, T., Yamaguchi, M., Tsuboi, T., Nobusada, K., Stehlin, F., Soppera, O., Bloch, D., Department of Physics, Chuo University, Chuo University (Chuo University), The University of Tokyo (UTokyo), Institute for Molecular Sciences, National Institutes of Natural Sciences, Institut de Science des Matériaux de Mulhouse (IS2M), Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique des Lasers (LPL), Université Paris 13 (UP13)-Centre National de la Recherche Scientifique (CNRS), and Bloch, Daniel
- Subjects
[PHYS.PHYS.PHYS-OPTICS] Physics [physics]/Physics [physics]/Optics [physics.optics] ,[PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics] ,magnetic transition ,[PHYS.PHYS]Physics [physics]/Physics [physics] ,[PHYS.PHYS.PHYS-ATOM-PH]Physics [physics]/Physics [physics]/Atomic Physics [physics.atom-ph] ,[SPI.NANO] Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics ,[SPI.MAT] Engineering Sciences [physics]/Materials ,ZrO2 reaction ,[PHYS.COND.CM-MS] Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci] ,[PHYS.PHYS.PHYS-CHEM-PH] Physics [physics]/Physics [physics]/Chemical Physics [physics.chem-ph] ,[SPI.MAT]Engineering Sciences [physics]/Materials ,nano-etching ,surface smoothing ,[PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci] ,[PHYS.PHYS] Physics [physics]/Physics [physics] ,ComputingMethodologies_GENERAL ,[PHYS.PHYS.PHYS-CHEM-PH]Physics [physics]/Physics [physics]/Chemical Physics [physics.chem-ph] ,[PHYS.PHYS.PHYS-ATOM-PH] Physics [physics]/Physics [physics]/Atomic Physics [physics.atom-ph] ,[SPI.NANO]Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics ,ComputingMilieux_MISCELLANEOUS - Abstract
poster présenté par S Tojo; International audience
- Published
- 2017
33. Excitation enhancement in electric multipole transitions near a nanoedge
- Author
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Daniel Bloch, Satoshi Tojo, Kosuke Shibata, Department of Physics, Chuo University, Chuo University (Chuo University), Laboratoire de Physique des Lasers (LPL), Université Paris 13 (UP13)-Centre National de la Recherche Scientifique (CNRS), and Bloch, Daniel
- Subjects
[PHYS.PHYS.PHYS-OPTICS] Physics [physics]/Physics [physics]/Optics [physics.optics] ,Electromagnetic field ,[SPI.OPTI] Engineering Sciences [physics]/Optics / Photonic ,[SPI.NANO] Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics ,Near and far field ,02 engineering and technology ,01 natural sciences ,7. Clean energy ,Electric field ,0103 physical sciences ,Atom ,Physics::Atomic Physics ,[PHYS.PHYS.PHYS-ATOM-PH] Physics [physics]/Physics [physics]/Atomic Physics [physics.atom-ph] ,[SPI.NANO]Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics ,010306 general physics ,oscillator strength ,Physics ,[PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics] ,[PHYS.PHYS.PHYS-ATOM-PH]Physics [physics]/Physics [physics]/Atomic Physics [physics.atom-ph] ,021001 nanoscience & nanotechnology ,Magnetic quantum number ,Atomic and Molecular Physics, and Optics ,Magnetic field ,Optics at surfaces ,[SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic ,Atomic physics ,0210 nano-technology ,Multipole expansion ,Excitation - Abstract
We investigate enhancement of electric multipole excitations of atoms in the vicinity of an object with a nanoscale edge resulted from a large electromagnetic field gradient. We calculate the excitation efficiencies of a Rb atom around a nanoedge and find the excitations are enhanced by several orders of magnitude. The efficiencies with the change in the magnetic quantum number resolved are also examined. Each resolved efficiency shows rotationally symmetric spatial distribution, with continuous modification in shape from the far field to the near field. Furthermore, we estimate photon emission rates accompanied with multipole excitations in alkali (Rb and Cs) atoms and discuss the possibility to observe the enhancement in the multi-pole excitation in cold atoms.
- Published
- 2017
34. Nanogravure douce induite par la composante magnétique du champ lumineux
- Author
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Yatsui, Takashi, Tsuboi, Toshiki, Yamaguchi, Maiku, Nobusada, Katsuyuki, Tojo, Satoshi, Stehlin, Fabrice, Soppera, Olivier, Bloch, Daniel, The University of Tokyo (UTokyo), Institute for Molecular Sciences, National Institutes of Natural Sciences, Department of Physics, Chuo University, Chuo University (Chuo University), Institut de Science des Matériaux de Mulhouse (IS2M), Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Matériaux et nanosciences d'Alsace (FMNGE), Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Réseau nanophotonique et optique, Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA), Laboratoire de Physique des Lasers (LPL), Université Paris 13 (UP13)-Centre National de la Recherche Scientifique (CNRS), Société Française d'Optique, and Bloch, Daniel
- Subjects
[PHYS.PHYS.PHYS-OPTICS] Physics [physics]/Physics [physics]/Optics [physics.optics] ,[CHIM.MATE] Chemical Sciences/Material chemistry ,[PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics] ,nanostructuration ,dipolaire magnétique ,gravure chimique ,ComputingMethodologies_GENERAL ,[CHIM.MATE]Chemical Sciences/Material chemistry ,ComputingMilieux_MISCELLANEOUS - Abstract
poster; National audience
- Published
- 2016
35. A new constraint on the lyα fraction of uv very bright galaxies at redshift 7
- Author
-
Naoki Yasuda, K. Sekiguchi, Yoshiaki Naito, James Dunlop, Kazuhiro Shimasaku, Yuki Okura, Junko Furusawa, Johan P. U. Fynbo, Hisanori Furusawa, Yoshiaki Taniguchi, Toru Yamada, Olivier Le Fevre, Masaru Kajisawa, Masami Ouchi, Tadafumi Takata, Nobunari Kashikawa, Fumiaki Nakata, Masakazu A. R. Kobayashi, NAOJ, National Astronomical Observatories Japan, University of Edinburgh, National Astronomical Observatory of Japan (NAOJ), Faculty of Science and Engineering [Waseda], Waseda University, Department of Civil Engineering, Chuo University (Chuo University), Laboratoire d'Astrophysique de Marseille (LAM), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Aix Marseille Université (AMU)-Centre National d'Études Spatiales [Toulouse] (CNES), European Project: 267117,EC:FP7:ERC,ERC-2010-AdG_20100224,DARK(2011), Waseda University [Tokyo, Japan], and Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)
- Subjects
Physics ,010308 nuclear & particles physics ,Cosmology: observations ,Galaxies: high-redshift ,Galaxies: evolution ,Astronomy and Astrophysics ,Astrophysics ,Astrophysics - Astrophysics of Galaxies ,01 natural sciences ,Redshift ,Galaxy ,Reionization ,Space and Planetary Science ,Dark ages ,0103 physical sciences ,Dark Ages ,Alpha decay ,Spectroscopy ,[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] ,010303 astronomy & astrophysics ,Equivalent width ,Astrophysics - Cosmology and Nongalactic Astrophysics ,Line (formation) ,First stars - Abstract
We study the extent to which very bright (-23.0 < MUV < -21.75) Lyman-break selected galaxies at redshifts z~7 display detectable Lya emission. To explore this issue, we have obtained follow-up optical spectroscopy of 9 z~7 galaxies from a parent sample of 24 z~7 galaxy candidates selected from the 1.65 sq.deg COSMOS-UltraVISTA and SXDS-UDS survey fields using the latest near-infrared public survey data, and new ultra-deep Subaru z'-band imaging (which we also present and describe in this paper). Our spectroscopy has yielded only one possible detection of Lya at z=7.168 with a rest-frame equivalent width EW_0 = 3.7 (+1.7/-1.1) Angstrom. The relative weakness of this line, combined with our failure to detect Lya emission from the other spectroscopic targets allows us to place a new upper limit on the prevalence of strong Lya emission at these redshifts. For conservative calculation and to facilitate comparison with previous studies at lower redshifts, we derive a 1-sigma upper limit on the fraction of UV bright galaxies at z~7 that display EW_0 > 50 Angstrom, which we estimate to be < 0.23. This result may indicate a weak trend where the fraction of strong Lya emitters ceases to rise, and possibly falls between z~6 and z~7. Our results also leave open the possibility that strong Lya may still be more prevalent in the brightest galaxies in the reionization era than their fainter counterparts. A larger spectroscopic sample of galaxies is required to derive a more reliable constraint on the neutral hydrogen fraction at z~7 based on the Lya fraction in the bright galaxies., Comment: 20 pages, 7 figures, accepted for publication in ApJ
- Published
- 2016
- Full Text
- View/download PDF
36. Simulating orographic rainfall with a limited-area, non-hydrostatic atmospheric model under idealized forcing
- Author
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Srikantha Herath, Assela Pathirana, Tadashi Yamada, EGU, Publication, United Nations University, United Nations University (UNU), and Chuo University (Chuo University)
- Subjects
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean, Atmosphere ,Atmospheric Science ,geography ,geography.geographical_feature_category ,[SDU.OCEAN] Sciences of the Universe [physics]/Ocean, Atmosphere ,Orography ,Atmospheric model ,Wind direction ,Atmospheric sciences ,lcsh:QC1-999 ,Wind speed ,lcsh:Chemistry ,Atmosphere ,Prevailing winds ,lcsh:QD1-999 ,Ridge ,Sea breeze ,Climatology ,lcsh:Physics ,Geology - Abstract
A modified version of an operational 3-dimensional, non-hydrostatic, limited-area atmospheric model (MM5) was used to perform high-resolution, idealized simulations of the interaction of an infinitely long single ridge with a steady, lateral large-scale wind field. The effect of different mountain ridge dimensions, wind speeds and patterns and moisture profiles on the quantity and distribution of orographic rainfall was investigated. The simulations demonstrated a number of commonly observed mountain flow features like formation of cap clouds, foehn wall, convective break-out associated with mountain topography, interaction of downslope winds with sea breeze, and different stages of cumulus development. It was found that the rainfall maxima associated with the mountain always occur upstream of the ridge peak. Changing mountain dimensions, wind speeds and patterns and moisture profile had clear effects on amount and pattern of accumulated rainfall. Low wind speeds resulted the maximum accumulated rainfall to occur considerable distance upstream of ridge peak. Reversal of wind directions in upper atmosphere caused rainfall to be largely restricted to the wind-side of the peak. The observed rainfall patterns are explained by the different flow patterns observed in the model output.
- Published
- 2005
- Full Text
- View/download PDF
37. Marine invertebrates and noise
- Author
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Solé Carbonell, Marta, Kaifu, Kenzo, Mooney, T. Aran, Nedelec, Sophie L., Olivier, Fréderic, Radford, Andrew N., Vazzana, Mirella, Wale, Matthew A., Semmens, Jayson M., Simpson, Stephen D., Buscaino, Giuseppa, Hawkins, Anthony D., Aguilar de Soto, Natacha, Akamatsu, Tom, Chauvaud, Laurent, Day, Ryan D., Fitzgibbon, Quinn, McCauley, Robert D., André, Michel, Technical University of Catalonia [Barcelona] (UPC), Faculty of Law, Chuo University, Woods Hole Oceanographic Institution (WHOI), School of Biological Sciences [Bristol], University of Bristol [Bristol], Biologie des Organismes et Ecosystèmes Aquatiques (BOREA), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA), Università degli studi di Palermo - University of Palermo, Edinburgh Napier University, University of Tasmania [Hobart, Australia] (UTAS), Institute for the Study of the Anthropic Impacts and the Sustainability in the Marine Environment (IAS), National Research Council of Italy | Consiglio Nazionale delle Ricerche (CNR), Bioacoustics, Kincraig, University of La Laguna, Department of geography, The Sasakawa Peace Foundation (SPF), Centre National de la Recherche Scientifique (CNRS), Laboratoire des Sciences de l'Environnement Marin (LEMAR) (LEMAR), Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Institut Universitaire Européen de la Mer (IUEM), Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), CMST Curtin University, TECHNICAL UNIVERSITY OF CATALONIA ESP, Partenaires IRSTEA, Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA), Centre Tecnològic de Vilanova i la Geltrú, and Universitat Politècnica de Catalunya. LAB - Laboratori d'Aplicacions Bioacústiques
- Subjects
Desenvolupament humà i sostenible::Medi ambient [Àrees temàtiques de la UPC] ,Acústica submarina ,noise effects ,[SDV.EE]Life Sciences [q-bio]/Ecology, environment ,Global and Planetary Change ,marine invertebrates ,Física::Acústica [Àrees temàtiques de la UPC] ,sound detection ,marine noise pollution ,Ocean Engineering ,Marine pollution ,Aquatic Science ,Oceanography ,sound detectionnoise effects ,Contaminació acústica ,sound production ,Noise pollution ,particle motion ,statocyst ,sound pressure ,Water Science and Technology - Abstract
Within the set of risk factors that compromise the conservation of marine biodiversity, one of the least understood concerns is the noise produced by human operations at sea and from land. Many aspects of how noise and other forms of energy may impact the natural balance of the oceans are still unstudied. Substantial attention has been devoted in the last decades to determine the sensitivity to noise of marine mammals—especially cetaceans and pinnipeds—and fish because they are known to possess hearing organs. Recent studies have revealed that a wide diversity of invertebrates are also sensitive to sounds, especially via sensory organs whose original function is to allow maintaining equilibrium in the water column and to sense gravity. Marine invertebrates not only represent the largest proportion of marine biomass and are indicators of ocean health but many species also have important socio-economic values. This review presents the current scientific knowledge on invertebrate bioacoustics (sound production, reception, sensitivity), as well as on how marine invertebrates are affected by anthropogenic noises. It also critically revisits the literature to identify gaps that will frame future research investigating the tolerance to noise of marine ecosystems.
- Published
- 2023
- Full Text
- View/download PDF
38. Angle-dependent enhanced excitation of atomic multipole transitions near nanostructure
- Author
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Tojo, Satoshi, Shibata, Kosuke, Bloch, Daniel, Bloch, Daniel, Department of Physics, Chuo University, Chuo University (Chuo University), Laboratoire de Physique des Lasers (LPL), Université Paris 13 (UP13)-Centre National de la Recherche Scientifique (CNRS), and JapanSociety for the Promotion of ScienceMatsuo FoundationResearch Foundation for Opto-Science and Technology.
- Subjects
[PHYS.PHYS.PHYS-OPTICS] Physics [physics]/Physics [physics]/Optics [physics.optics] ,[PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics] ,[PHYS.PHYS.PHYS-ATOM-PH]Physics [physics]/Physics [physics]/Atomic Physics [physics.atom-ph] ,nanostructure ,Physics::Atomic Physics ,[PHYS.PHYS.PHYS-ATOM-PH] Physics [physics]/Physics [physics]/Atomic Physics [physics.atom-ph] ,multipole transition ,forbidden transition - Abstract
Communication orale présentée par S Tojo; International audience; We investigate electric multipole transitions of atomsin the vicinity ofa nano-structure. We calculate excitation efficiencies of electric dipole forbidden, electric quadrupole, 5 2S1/2–5 2D5/2transition in rubidium with scaleandangle dependences of a scattered electric field generatedby a nanostructure. Due to strong field gradientsdepending on both scales and angles, the excitation efficiencies of the electric quadrupole transition reach 5 orders of magnitudelarger than thatin free space regime.
- Published
- 2015
39. Slow hot carrier cooling in cesium lead iodide perovskites
- Author
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Koji Nishinaka, Shuzi Hayase, Chao Ding, Yaohong Zhang, Takashi Minemoto, Teresa S. Ripolles, Feng Liu, Kenji Yoshino, Naoki Nakazawa, Yuhei Ogomi, Takuya Izuishi, Qing Shen, Kenji Katayama, Jacky Even, Taro Toyoda, The University of Electro-Communications [Tokyo], Kyushu Institute of Technology, Institut des Fonctions Optiques pour les Technologies de l'informatiON (Institut FOTON), Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-École Nationale Supérieure des Sciences Appliquées et de Technologie (ENSSAT)-Centre National de la Recherche Scientifique (CNRS)-IMT Atlantique Bretagne-Pays de la Loire (IMT Atlantique), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), Miyazaki University, Ritsumeikan University, Chuo University (Chuo University), Kyushu Institute of Technology (Kyutech), Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), and Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-École Nationale Supérieure des Sciences Appliquées et de Technologie (ENSSAT)-Centre National de la Recherche Scientifique (CNRS)
- Subjects
Physics and Astronomy (miscellaneous) ,Chemistry ,Phonon ,business.industry ,Energy conversion efficiency ,Halide ,02 engineering and technology ,010402 general chemistry ,021001 nanoscience & nanotechnology ,7. Clean energy ,01 natural sciences ,Fluence ,0104 chemical sciences ,law.invention ,law ,Solar cell ,Ultrafast laser spectroscopy ,[CHIM]Chemical Sciences ,Optoelectronics ,[PHYS.COND]Physics [physics]/Condensed Matter [cond-mat] ,0210 nano-technology ,business ,Light-emitting diode ,Perovskite (structure) - Abstract
International audience; Lead halide perovskites are attracting a great deal of interest for optoelectronic applications such as solar cells, LEDs, and lasers because of their unique properties. In solar cells, heat dissipation by hot carriers results in a major energy loss channel responsible for the Shockley–Queisser efficiency limit. Hot carrier solar cells offer the possibility to overcome this limit and achieve energy conversion efficiency as high as 66% by extracting hot carriers. Therefore, fundamental studies on hot carrier relaxation dynamics in lead halide perovskites are important. Here, we elucidated the hot carrier cooling dynamics in all-inorganic cesium lead iodide (CsPbI3) perovskite using transient absorption spectroscopy. We observe that the hot carrier cooling rate in CsPbI3 decreases as the fluence of the pump light increases and the cooling is as slow as a few 10 ps when the photoexcited carrier density is 7 × 1018 cm−3, which is attributed to phonon bottleneck for high photoexcited carrier densities. Our findings suggest that CsPbI3 has a potential for hot carrier solar cell applications.
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- 2017
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40. Evaluation of polarization and structure dependence of dressed photon etching
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Tsuboi, T., Yatsui, Takashi, Banno, I., Nobusada, K., Stehlin, F., Soppera, Olivier, Kawazoe, T., Bloch, Daniel, Tojo, Satoshi, Ohtsu, Motoishi, The University of Tokyo (UTokyo), Japan Science and Technology Agency, JST/ALCA, Yamanashi University, Institute for Molecular Sciences, National Institutes of Natural Sciences, Institut de Science des Matériaux de Mulhouse (IS2M), Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique des Lasers (LPL), Université Paris 13 (UP13)-Centre National de la Recherche Scientifique (CNRS), Department of Physics, Chuo University, Chuo University (Chuo University), and Bloch, Daniel
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[PHYS.PHYS.PHYS-OPTICS] Physics [physics]/Physics [physics]/Optics [physics.optics] ,stomatognathic diseases ,superflat surface ,[PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics] ,[PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci] ,dressed photon ,etching ,[PHYS.COND.CM-MS] Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci] - Abstract
oral presentation; National audience
- Published
- 2014
41. Cartographier un faisceau focalisé au delà de l'approximation paraxiale avec des transitions quasi-interdites : transfert du moment orbital, superchiralité
- Author
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Bloch, Daniel, Klimov, Vasily, Ducloy, Martial, Chaves de Souza Segundo, Pedro, Tojo, Satoshi, Rios Leite, Jose Roberto, Laboratoire de Physique des Lasers (LPL), Université Paris 13 (UP13)-Centre National de la Recherche Scientifique (CNRS), P. N. Lebedev Physical Institute of the Russian Academy of Sciences [Moscow] (LPI RAS), Russian Academy of Sciences [Moscow] (RAS), Universidade Federal de Campina Grande [Campina Grande] (UFCG), Department of Physics, Chuo University, Chuo University (Chuo University), Departamento de Fisica,Centro de Ciencias Exatas e da Natureza, Universidade Federal de Pernambuco [Recife] (UFPE), CAPES-COFECUB Ph 740/12, PICS CNRS Russie #5813, and Bloch, Daniel
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[PHYS.PHYS.PHYS-OPTICS] Physics [physics]/Physics [physics]/Optics [physics.optics] ,[PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics] ,forbidden transitions ,[PHYS.PHYS.PHYS-ATOM-PH]Physics [physics]/Physics [physics]/Atomic Physics [physics.atom-ph] ,[PHYS.QPHY]Physics [physics]/Quantum Physics [quant-ph] ,Laguerre-Gauss ,[PHYS.PHYS.PHYS-ATOM-PH] Physics [physics]/Physics [physics]/Atomic Physics [physics.atom-ph] ,mapping ,superchirality ,[PHYS.QPHY] Physics [physics]/Quantum Physics [quant-ph] - Abstract
conférence donnée par Daniel Bloch; National audience
- Published
- 2014
42. Accounting for the Promotion of Overcoming Population Decline and Vitalizing Local Economy in Japan
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Noriko, Ichikawa, Ono Masayoshi, Maruyama Yoshihisa, Yoshida Tomoya, 研究ノート, Research Notes, 駿河台大学, 千葉経済大学, 中央大学, Surugadai University, Chiba Keizai University, and Chuo University
- Published
- 2022
43. The Quantum Group Dual of the First-Row Subcategory for the Generic Virasoro VOA
- Author
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Shinji Koshida, Kalle Kytölä, Chuo University, Department of Mathematics and Systems Analysis, Aalto-yliopisto, and Aalto University
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17B69, 17B37, 81T40 ,Subcategory ,Pure mathematics ,Quantum group ,Duality (mathematics) ,FOS: Physical sciences ,Statistical and Nonlinear Physics ,Mathematical Physics (math-ph) ,Dual (category theory) ,Vertex operator algebra ,Mathematics::Quantum Algebra ,Mathematics - Quantum Algebra ,FOS: Mathematics ,Quantum Algebra (math.QA) ,Fusion rules ,Representation Theory (math.RT) ,Central charge ,Mathematics - Representation Theory ,Mathematical Physics ,Associative property ,Mathematics - Abstract
In several examples it has been observed that a module category of a vertex operator algebra (VOA) is equivalent to a category of representations of some quantum group. The present article is concerned with developing such a duality in the case of the Virasoro VOA at generic central charge; arguably the most rudimentary of all VOAs, yet structurally complicated. We do not address the category of all modules of the generic Virasoro VOA, but we consider the infinitely many modules from the first row of the Kac table. Building on an explicit quantum group method of Coulomb gas integrals, we give a new proof of the fusion rules, we prove the analyticity of compositions of intertwining operators, and we show that the conformal blocks are fully determined by the quantum group method. Crucially, we prove the associativity of the intertwining operators among the first-row modules, and find that the associativity is governed by the $6j$-symbols of the quantum group. Our results constitute a concrete duality between a VOA and a quantum group, and they will serve as the key tools to establish the equivalence of the first-row subcategory of modules of the generic Virasoro VOA and the category of (type-1) finite-dimensional representations of $\mathcal{U}_{q}(\mathfrak{sl}_{2})$., Comment: 79 pages. Accepted for publication in Communications in Mathematical Physics
- Published
- 2021
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44. A generalization of the carries process
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Takahiko Fujita, Taizo Sadahiro, Fumihiko Nakano, Faculty of Science and Engineering [Chuo], Chuo University (Chuo University), Department of Mathematics [Gakushuin], Gakushuin University, Department of Information Science [Tsuda], Tsuda College, and Louis J. Billera and Isabella Novik
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General Computer Science ,Shuffling ,Distribution (number theory) ,Generalization ,Eulerian number ,Computer Science::Computational Geometry ,[INFO.INFO-DM]Computer Science [cs]/Discrete Mathematics [cs.DM] ,Representation theory ,Carries process ,Theoretical Computer Science ,Connection (mathematics) ,Combinatorics ,[MATH.MATH-CO] Mathematics [math]/Combinatorics [math.CO] ,symbols.namesake ,[INFO.INFO-DM] Computer Science [cs]/Discrete Mathematics [cs.DM] ,Negative base ,Riffle shuffle ,[MATH.MATH-CO]Mathematics [math]/Combinatorics [math.CO] ,symbols ,Discrete Mathematics and Combinatorics ,Eigenvalues and eigenvectors ,Mathematics - Abstract
We consider a carries process which is a generalization of that by Holte in the sense that (i) we take various digit sets, and (ii) we also consider negative base. Our results are : (i) eigenvalues and eigenvectors of the transition probability matrices, and their connection to combinatorics and representation theory, (ii) an application to the computation of the distribution of the sum of i.i.d. uniform r.v.'s on [0,1], (iii) a relation to riffle shuffle.
- Published
- 2014
45. Community-wide evaluation of methods for predicting the effect of mutations on protein-protein interactions
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Moretti, Rocco, Fleishman, Sarel J, Agius, Rudi, Torchala, Mieczyslaw, Bates, Paul A., Kastritis, Panagiotis L, Rodrigues, João P. G. L. M., Trellet, Mikael, Bonvin, Alexandre M. J. J., Cui, Meng, Rooman, Marianne, Gillis, Dimitri, Dehouck, Yves, Moal, Iain, Romero-Durana, Miguel, Pérez-Cano, Laura, Pallara, Chiara, Jimenez, Brian, Fernández-Recio, Juan, Flores, Samuel C, Pacella, Michael, Praneeth Kilambi, Krishna, Gray, Jeffrey J, Popov, Petr, Grudinin, Sergei, Esquivel-Rodríguez, Juan, Kihara, Daisuke, Zhao, Nan, Korkin, Dmitry, Zhu, Xiaolei, Demerdash, Omar N A, Mitchell, Julie, Kanamori, Eiji, Tsuchiya, Yuko, Nakamura, Haruki, Lee, Hasup, Park, Hahnbeom, Seok, Chaok, Sarmiento, Jamica, Liang, Shide, Teraguchi, Shusuke, Standley, Daron M, Shimoyama, Hiromitsu, Terashi, Genki, Takeda-Shitaka, Mayuko, Iwadate, Mitsuo, Umeyama, Hideaki, Beglov, Dmitri, Hall, David R, Kozakov, Dima, Vajda, Sandor, Pierce, Brian G, Hwang, Howook, Vreven, Thom, Weng, Zhiping, Huang, Yangyu, Li, Haotian, Yang, Xiufeng, Ji, Xiaofeng, Liu, Shiyong, Xiao, Yi, Zacharias, Martin, Qin, Sanbo, Zhou, Huan-Xiang, Huang, Sheng-You, Zou, Xiaoqin, Velankar, Sameer, Janin, Joel, Wodak, Shoshana J, Baker, David, Department of Biochemistry [Washington ], University of Washington [Seattle], Molecular Carcinogenesis [Sutton], Institute of cancer research, Weizmann Institute of Science [Rehovot, Israël], Biomolecular Modelling laboratory [London], Cancer Research UK London Research Institute, Bijvoet Center of Biomolecular Research [Utrecht], Utrecht University [Utrecht], Virginia Commonwealth University (VCU), Département d'Informatique [Bruxelles] (ULB), Faculté des Sciences [Bruxelles] (ULB), Université libre de Bruxelles (ULB)-Université libre de Bruxelles (ULB), Université libre de Bruxelles (ULB), Unite de Bioinformatique genomique et structurale (3BIO-BIO-INFO), Barcelona Supercomputing Center - Centro Nacional de Supercomputacion (BSC - CNS), Department of Cell and Molecular Biology [Uppsala], Uppsala University, Johns Hopkins University (JHU), Algorithms for Modeling and Simulation of Nanosystems (NANO-D), Inria Grenoble - Rhône-Alpes, Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria)-Laboratoire Jean Kuntzmann (LJK), Université Pierre Mendès France - Grenoble 2 (UPMF)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Pierre Mendès France - Grenoble 2 (UPMF)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS), Department of Computer Science [Purdue], Purdue University [West Lafayette], University of Missouri [Columbia] (Mizzou), University of Missouri System, Department of Mathematics [Madison], University of Wisconsin-Madison, Japan Biological Informatics Consortium [Tokyo], Ochanomizu University, Osaka University [Osaka], Seoul National University [Seoul] (SNU), Kitasato University, Chuo University (Chuo University), Department of Biomedical Engineering [Boston], Boston University [Boston] (BU), University of Massachusetts Medical School [Worcester] (UMASS), University of Massachusetts System (UMASS), Huazhong University of Science and Technology [Wuhan] (HUST), Technische Universität Munchen - Université Technique de Munich [Munich, Allemagne] (TUM), Florida State University [Tallahassee] (FSU), European Bioinformatics Institute [Hinxton] (EMBL-EBI), EMBL Heidelberg, Institut de biochimie et biophysique moléculaire et cellulaire (IBBMC), Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS), University of Toronto, and The Hospital for sick children [Toronto] (SickKids)
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binding ,deep mutational scanning ,Mutation ,Protein Interaction Mapping ,yeast display ,hemagglutinin ,[INFO.INFO-BI]Computer Science [cs]/Bioinformatics [q-bio.QM] ,Databases, Protein ,CAPRI ,[SDV.BIBS]Life Sciences [q-bio]/Quantitative Methods [q-bio.QM] ,Algorithms ,Article ,Protein Binding - Abstract
International audience; Community-wide blind prediction experiments such as CAPRI and CASP provide an objective measure of the current state of predictive methodology. Here we describe a community-wide assessment of methods to predict the effects of mutations on protein-protein interactions. Twenty-two groups predicted the effects of comprehensive saturation mutagenesis for two designed influenza hemagglutinin binders and the results were compared with experimental yeast display enrichment data obtained using deep sequencing. The most successful methods explicitly considered the effects of mutation on monomer stability in addition to binding affinity, carried out explicit side-chain sampling and backbone relaxation, evaluated packing, electrostatic, and solvation effects, and correctly identified around a third of the beneficial mutations. Much room for improvement remains for even the best techniques, and large-scale fitness landscapes should continue to provide an excellent test bed for continued evaluation of both existing and new prediction methodologies.
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- 2013
- Full Text
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46. Optically controlled magnetic-field etching on the nano-scale
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Maiku Yamaguchi, Fabrice Stehlin, Katsuyuki Nobusada, Daniel Bloch, Olivier Soppera, Satoshi Tojo, Toshiki Tsuboi, Takashi Yatsui, The University of Tokyo (UTokyo), Institute for Molecular Sciences, National Institutes of Natural Sciences, Department of Physics, Chuo University, Chuo University (Chuo University), Institut de Science des Matériaux de Mulhouse (IS2M), Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique des Lasers (LPL), and Université Paris 13 (UP13)-Centre National de la Recherche Scientifique (CNRS)
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Materials science ,Physics::Instrumentation and Detectors ,Nanophotonics ,02 engineering and technology ,Electron ,7. Clean energy ,01 natural sciences ,Electric field ,0103 physical sciences ,optically controlled magnetic-field interaction ,010306 general physics ,Plasmon ,nano-scale ,[PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics] ,Condensed matter physics ,business.industry ,Nonlinear optics ,021001 nanoscience & nanotechnology ,Polarization (waves) ,Ray ,Atomic and Molecular Physics, and Optics ,Computer Science::Other ,Electronic, Optical and Magnetic Materials ,Magnetic field ,near-field etching ,Optoelectronics ,Original Article ,0210 nano-technology ,business - Abstract
Electric and magnetic fields play an important role in both chemical and physical reactions. However, since the coupling efficiency between magnetic fields and electrons is low in comparison with that between electric fields and electrons in the visible wavelength region, the magnetic field is negligible in photo-induced reactions. Here, we performed photo-etching of ZrO2 nano-stripe structures, and identified an etching-property polarisation dependence. Specifically, the etching rate and etched profiles depend on the structure width. To evaluate this polarisation-dependent etching, we performed numerical calculations using a finite-difference time-domain method. Remarkably, the numerical results revealed that the polarisation-dependent etching properties were determined by the magnetic field distributions, rather than the electric field distributions. As nano-scale structures induce a localised magnetic field, the discovery of this etching dependence on the magnetic field is expected to introduce a new perspective on advanced nano-scale structure fabrication. The magnetic-field polarization of incident light has been found to affect photoetching of zirconium oxide (ZrO2) nanostripes. Takashi Yatsui of the University of Tokyo and co-workers in Japan and France have found that the etching rates and the profiles of etched structures depended on the incident polarization. Numerical calculations revealed that this polarization dependence of the etching properties stemmed from the distribution of the magnetic field rather than that of the electric field. This is a surprising result since the magnetic field is generally ignored in light-induced reactions because it is considered to have negligible interaction with materials due to its low coupling efficiency with the electrons in a material. The inclusion of the magnetic field will provide an extra degree of freedom when fabricating nanostructures for advanced optical and electrical devices.
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- 2016
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47. Electronic structure of Mg-Zn-based compounds
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Yasushi Ishii, Zoltán Dankházi, Esther Belin-Ferré, Department of Physics, Chuo University (Chuo University), Department of Materials Physics, Eötvös Loránd University (ELTE), Laboratoire de Chimie Physique - Matière et Rayonnement (LCPMR), and Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)
- Subjects
Chemistry ,Hexagonal crystal system ,Intermetallic ,Quasicrystal ,02 engineering and technology ,Electronic structure ,Laves phase ,010402 general chemistry ,021001 nanoscience & nanotechnology ,Condensed Matter Physics ,01 natural sciences ,0104 chemical sciences ,3. Good health ,Metal ,Crystallography ,visual_art ,Physical Sciences ,visual_art.visual_art_medium ,Density of states ,0210 nano-technology ,Spectroscopy - Abstract
International audience; We present a comparison between calculated densities of states of the Laves phase MgZn2 and hexagonal Mg28Zn65Y7 and experimental results obtained using both X-ray emission and photoabsorption spectroscopy techniques. We show that there is a general agreement between both sets of data for both alloys. We also point out the two samples retain a metallic character yet, the hexagonal approximant of the Mg-Zn-Y quasicrystals family is less metallic than the Laves phase.
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- 2011
- Full Text
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48. Prosodische Variationen der gleichen Ausdrücke und ihre Interpretation
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Hayashi, Akiko, Nishinuma, Yukihiro, Yabe, Hiroko, Faculty of Letters, Chuo University (Chuo University), Laboratoire Parole et Langage (LPL), Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS), Faculty of Pedagogy, Tokyo Gakugei University, and (1) Grant-in-aid for Selected Research Program, Chuo University, Faculty of letters. (2) Grant-in-aid for Selected Research Program, Tokyo Gakugei University, Faculty of Pedagogy
- Subjects
Perzeptionstransfer ,Japanisch ,prosody ,Perception of intonation and rhythm ,Deutsch ,Dauer ,Japanese ,Prosodische Varianten ,Tonhoehe ,German ,[SCCO.LING]Cognitive science/Linguistics ,[SHS.LANGUE]Humanities and Social Sciences/Linguistics - Abstract
International audience; Für die Realisierung von Sprechhandlungen spielen lexikalische Informationen eine entscheidende Rolle. Jedoch darf die prosodische Seite der Ausdrücke nicht gering geachtet werden, denn die gleichen Ausdrücke können je nach Aussprache unterschiedliche konnotative Bedeutungen haben. Im Japanischen wird häufig darauf hingewiesen, dass die Intonation insbesondere am Ende der Äußerungen die Absicht bzw. Haltung des Sprechers wiederspiegelt. Um sie richtig zu verstehen, wird von den Japanischlernenden gefordert, bestimmte physikalische Veränderungen, wie z.B. Tonhöhe oder Dauer, richtig wahrzunehmen und dem gegebenen Kontext entsprechend zu interpretieren. Im Bereich des Japanischen als Fremdsprache wird die Intonation im Unterricht teilweise intuitiv" behandelt, ohne die genaue Wahrnehmungstendenz der Lernenden zu berücksichtigen, weil sie auch in der Forschung noch ungeklärt ist. In Bezug auf die Wahrnehmung des Wortakzents wurde die Tendenz der Interferenz von der Muttersprache bereits aufgrund empirischer Untersuchungen festgestellt und ausführlich beschrieben (Ayusawa & Nishinuma 1997 u.a.) *.Im Rahmen dieses Beitrags wird die Interferenz der Muttersprache bei Wahrnehmung der Intonation und des Rhythmus der Äußerungen behandelt. Analysiert werden hier die Daten von insgesamt 90 deutschen und japanischen Muttersprachlern. Jeder Teilnehmer antwortete auf 320 Fragen nach der Prosodie, nämlich die Tonhöhe und die Dauer. Die Daten werden statistisch analysiert und unter kontrastiven Gesichtspunkten diskutiert. Dabei werden auch die Ergebnisse von Umfragen berücksichtigt, die anschließend an die Untersuchungen durchgeführt wurde. Es wurde von den japanischen Muttersprachlern erwähnt, dass akustische Variationen der gleichen Ausdrücke bei ihnen unterschiedliche Eindrücke hervorriefen, womit sie auf die zusätzlichen Konnotationen verwiesen.; This study which supports the claim of a prosodic interference between L1 and L2, examines the perception of Japanese rhythm and intonation by German students. Four sentences recorded by 10 female Japanese speakers were presented 4 times through headsets to 45 Japanese and to 42 German students. Listeners were asked to determine whether the last syllable (1) had a rising or a falling intonation and (2) was short or long. Variance analysis reveals (1) a significant difference between the Germman and Japanese subjects in the perception of melodic and rhythm variations ; (2) that some infra-liminal F0 variations were judged differently by the German subjects, possibly due to interactions between sentence types and speech sounds.
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- 2009
49. The space infrared telescope for cosmology and astrophysics: SPICA A joint mission between JAXA and ESA
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SWINYARD, Bruce, NAKAGAWA, Takao, MERKEN, Patrick, ROYER, Pierre, SOUVERIJNS, Tim, VANDENBUSSCHE, Bart, WAELKENS, Christoffel, DAVIS, Peter, DI FRANCESCO, James, HALPERN, Mark, HOUDE, Martin, JOHNSTONE, Doug, JONCAS, Gilles, NAYLOR, David, PLUME, Rene, SCOTT, Douglas, ABERGEL, A., BENSAMMAR, S., BRAINE, J., BUAT, V., BURGARELLA, D., CAIS, Ph., DOLE, H., DUBAND, L., ELBAZ, D., GERIN, M., GIARD, M., GOICOECHEA, J., JOBLIN, C., JONES, A., KNEIB, J. P., LAGACHE, Guilaine, MADDEN, S., PONS, R., PAJOT, F., RAMBAUD, D., RAVERA, L., RISTORCELLI, I., RODRIGUEZ, L., VIVES, S., ZAVAGNO, Annie, GEIS, Norbert, KRAUSE, Oliver, LUTZ, Dieter, POGLITSCH, Albrecht, RAAB, Walfried, STEGMAIER, Jutta, STURM, Eckhard, TUFFS, Richard, LEE, Hyung Mok, KOO, Bon-Chul, IM, Myungshin, PAK, Soojong, HAN, Wonyong, PARK, Jang-Hyun, NAM, Uk-Won, JIN, Ho, LEE, Dae-Hee, YUK, In-Soo, LEE, Sungho, AIKAWA, Yuri, ARIMOTO, Nobuo, DOI, Yasuo, ENYA, Keigo, FUKAGAWA, Misato, FURUSHO, Reiko, HASEGAWA, Sunao, HAYASHI, Masahiko, HONDA KANAGAWA, Mitsuhiko, IDA, Shigeru, IMANISHI, MASATOSHI, INUTSUKA, Shu-Ichiro, IZUMIURA, Hideyuki, KAMAYA, Hideyuki, KANEDA, Hidehiro, KASUGA, Toshihiro, KATAZA, Hirokazu, KAWABATA, Koji, KAWADA, Mitsunobu, KAWAKITA, Hideyo, KII, Tsuneo, KODA, Jin, KODAMA, Tadayuki, KOKUBO, Eiichiro, KOMATSU, Keiji, MATSUHARA, Hideo, MATSUMOTO, Toshio, MATSUURA, Shuji, MIYATA, Takashi, MIYATA, Murakam, NAGATA, Hirohisa, NAGATA, Tetsuya, NAKAJIMA, Tadashi, NAOTO, Kobayashi, NISHI, Ryoichi, NODA, Atsushi, OKAMOTO, Atsushi, OKAMOTO, Yoshiko K., OMUKAI, Kazuyuki, ONAKA, Takashi, OOTSUBO, Takafumi, OUCHI, Masami, SAITO, Hirobumi, SATO, Yoichi, SAKO, Shigeyuki, SEKIGUCHI, Tomohiko, SHIBAI, Hiroshi, SUGITA, Hiroyuki, SUGITANI, Koji, SUSA, Hajime, PYO, Tae-Soo, TAMURA, Motohide, UEDA, Yoshihiro, UENO, Munetaka, WADA, Takehiko, WATANABE, Jun'Ichi, YAMADA, Toru, YAMAMURA, Issei, YOSHIDA, Naoki, YOSHIMI, Kitamura, YUI, Yukari, BENEDETTINI, Milena, CERULLI, Riccardo, DI GIORGIO, Anna, MOLINARI, Sergio, ORFEI, Renato, PEZZUTO, Stefano, PIAZZO, Lorenzo, SARACENO, Paolo, SPINOGLIO, Luigi, DE GRAAUW, Thijs, DE KORTE, Piet, HELMICH, Frank, HOEVERS, Henk, HUISMAN, Robert, SHIPMAN, Russell, VAN DER TAK, Floris, VAN DER WERF, Paul, WILD, Wolfgang, ACOSTA-PULIDO, Jose, CERNICHARO, Jose, HERREROS, Jose, MARTIN-PINTADO, Jesus, NAJARRO, Francisco, PEREZ-FOURMON, Ismael, RAMON PARDO, Juan, GOMEZ, Francisca, CASTRO RODRIGUEZ, Nieves, ADE, Peter, BARLOW, Mike, CLEMENTS, David, FERLET, Marc, FRASER, Helen, GRIFFIN, Douglas, GRIFFIN, Matthew, HARGRAVE, Peter, ISAAK, Kate, IVISON, Robert, MANSOUR, Malik, LANIESSE, Jonathan, MAUSKOPF, Phillip, MOROZOV, Dmitry, OLIVER, Seb, ORLANDO, Angiola, PAGE, Mathew, POPESCU, Cristina, SERJEANT, Stephen, SUDIWALA, Rashmi, RIGOPOULOU, Dimitra, WALKER, Ian, WHITE, Glenn, VITI, Serena, WINTER, Berend, BOCK, Jamie, BRADFORD, Matt, HARWIT, Martin, HOLMES, Warren, Institut Méditerranéen d'Ecologie et de Paléoécologie (IMEP), Université Paul Cézanne - Aix-Marseille 3-Centre National de la Recherche Scientifique (CNRS)-Avignon Université (AU)-Université de Provence - Aix-Marseille 1, Institute of Atomic Physics, Université de Roumanie, Groundwater Tracing Unit, Department of Geological Sciences, School of Environmental Sciences [Norwich], University of East Anglia [Norwich] (UEA), Institut de Recherche en Immunologie et en Cancérologie [UdeM-Montréal] (IRIC), Université de Montréal (UdeM), Department of Zoology, University of Otago [Dunedin, Nouvelle-Zélande], Transplantation Biology Group, Imperial College London, Institut d'astrophysique spatiale (IAS), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Observatoire de Paris - Site de Paris (OP), Centre National de la Recherche Scientifique (CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut national des sciences de l'Univers (INSU - CNRS), FORMATION STELLAIRE 2009, Laboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux (L3AB), Université Sciences et Technologies - Bordeaux 1-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Observatoire aquitain des sciences de l'univers (OASU), Université Sciences et Technologies - Bordeaux 1-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Laboratoire d'Astrophysique de Bordeaux [Pessac] (LAB), Université de Bordeaux (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Bordeaux (UB), Laboratoire d'Astrophysique de Marseille (LAM), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - 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Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL), Processus mentaux et activation cérébrale, Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-IFR19-Institut National de la Santé et de la Recherche Médicale (INSERM), IFR des neurosciences de Lyon (IFNL), Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre Hospitalier le Vinatier [Bron]-Hospices Civils de Lyon (HCL)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon, Centre d'étude spatiale des rayonnements (CESR), Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées, British Antarctic Survey (BAS), Natural Environment Research Council (NERC), Department of Radio and Space Science [Göteborg], Chalmers University of Technology [Göteborg], Laboratoire Astrophysique de Toulouse-Tarbes (LATT), Centre National de la Recherche Scientifique (CNRS)-Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Services communs OMP (UMS 831), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée (DAPNIA), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Solar Influences Data Analysis Center [Brussels] (SIDC), Royal Observatory of Belgium [Brussels] (ROB), Propriétés Optiques des Matériaux et Applications (POMA), Centre National de la Recherche Scientifique (CNRS)-Université d'Angers (UA), Franche-Comté Électronique Mécanique, Thermique et Optique - Sciences et Technologies (UMR 6174) (FEMTO-ST), Université de Technologie de Belfort-Montbeliard (UTBM)-Ecole Nationale Supérieure de Mécanique et des Microtechniques (ENSMM)-Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC)-Centre National de la Recherche Scientifique (CNRS), Observatoire Astronomique de Marseille Provence (OAMP), Université de Provence - 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(Adobe Advanced Technology Labs), Adobe Systems Inc., Defence Evaluation and Research Agency (DERA), Ministry of Defence (UK) (MOD)-Propulsion and Performance Department, Centre for Air Transport and the Environment (CATE), Manchester Metropolitan University (MMU), Department of Chemistry, Williams Hall-Kent State University, School of Earth and Atmospheric Sciences [Atlanta], Georgia Institute of Technology [Atlanta], Department of Earth and Planetary Sciences [Kobe], Kobe University, National Institute of Agro-Environmental Sciences (NIAES), Department of Earth System Science and Technology [Fukuoka] (ESST), Kyushu University [Fukuoka], Tokyo Institute of Technology [Tokyo] (TITECH), Department of Information and Communication Engineering, Graduate School of Information Science and Technology-The University of Tokyo (UTokyo), Department of Physics and Earth Sciences, University of the Ryukyus [Okinawa], Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Center for Climate System Research [Kashiwa] (CCSR), The University of Tokyo (UTokyo), School of Humanities [Univ of Toyama], University of Toyama, Department of Mechanical System (Hiroshima University), Hiroshima University, High Temperature Plasma Center [Tokyo], Discrete Optimization Laboratory, Toyohashi University of Technology, Hatakeyama Laboratory, University of Electro-Communications [Tokyo] (UEC)-Tohoku University [Sendai], Institute of Industrial Science (IIS), Institut de génétique et biologie moléculaire et cellulaire (IGBMC), Université Louis Pasteur - 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Paris (ENS-PSL), Université de Lyon-Université de Lyon-Hospices Civils de Lyon (HCL)-Centre Hospitalier le Vinatier [Bron]-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), Université d'Angers (UA)-Centre National de la Recherche Scientifique (CNRS), Université de Technologie de Belfort-Montbeliard (UTBM)-Ecole Nationale Supérieure de Mécanique et des Microtechniques (ENSMM)-Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC), University of California [Santa Cruz] (UC Santa Cruz), University of California (UC)-University of California (UC), Kyushu University, Waseda University [Tokyo, Japan], National Research Council of Italy | Consiglio Nazionale delle Ricerche (CNR), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS-PSL), CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Université Pierre et Marie Curie - Paris 6 (UPMC)-IFR70-Institut National de la Santé et de la Recherche Médicale (INSERM), Institut de Recherche en Immunologie et en Cancérologie (IRIC), Université de Montréal [Montréal], PSL Research University (PSL)-PSL Research University (PSL)-Institut national des sciences de l'Univers (INSU - CNRS), École normale supérieure - Paris (ENS Paris)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université de Cergy Pontoise (UCP), Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS Paris)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS Paris), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), Services communs OMP - UMS 831 (UMS 831), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Toulouse III - Paul Sabatier (UT3), Royal Observatory of Belgium [Brussels], Université de Franche-Comté (UFC)-Centre National de la Recherche Scientifique (CNRS)-Ecole Nationale Supérieure de Mécanique et des Microtechniques (ENSMM)-Université de Technologie de Belfort-Montbeliard (UTBM), Division of Reproductive Biology, Stanford University [Stanford], Okayama University [Okayama], Graduate School of Information Science and Technology-The University of Tokyo, The University of Tokyo, Department of linguistic [Toyama], Consejo Superior de Investigaciones Científicas [Spain] (CSIC)-Consejo Superior de Investigaciones Científicas [Spain] (CSIC), Consejo Superior de Investigaciones Científicas [Spain] (CSIC), École normale supérieure - Paris (ENS Paris)-École normale supérieure - Paris (ENS Paris)-Centre National de la Recherche Scientifique (CNRS), Service de neurologie 1 [CHU Pitié-Salpétrière], Assistance publique - Hôpitaux de Paris (AP-HP) (APHP)-CHU Pitié-Salpêtrière [APHP], Stanford Linear Accelerator Center (SLAC), Astronomy, Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Université Fédérale Toulouse Midi-Pyrénées-Météo-France -Institut de Recherche pour le Développement (IRD)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), The University of Tokyo (UTokyo)-Graduate School of Information Science and Technology, Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-CHU Pitié-Salpêtrière [AP-HP], and Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Sorbonne Université (SU)
- Subjects
[SDU.ASTR.CO]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO] ,Infrared telescope ,UNIVERSE ,Astrophysics ,Spica ,Astrophysics::Cosmology and Extragalactic Astrophysics ,POLYCYCLIC AROMATIC-HYDROCARBON ,7. Clean energy ,01 natural sciences ,Space missions ,Cosmology ,Space exploration ,law.invention ,STAR-FORMATION ,010309 optics ,Telescope ,[PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO] ,Spitzer Space Telescope ,law ,0103 physical sciences ,010303 astronomy & astrophysics ,Astrophysics::Galaxy Astrophysics ,Physics ,Infrared astronomy ,SPECTRUM ,Spacecraft ,[SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph] ,SUBMILLIMETER GALAXIES ,business.industry ,Astrophysics::Instrumentation and Methods for Astrophysics ,Astronomy ,Astronomy and Astrophysics ,MODEL ,SPITZER ,PAHS ,Space and Planetary Science ,Infrared ,Physics::Space Physics ,IR ,Astrophysics::Earth and Planetary Astrophysics ,business ,EMISSION - Abstract
International audience; The Space Infrared telescope for Cosmology and Astrophysics (SPICA) is planned to be the next space astronomy mission observing in the infrared. The mission is planned to be launched in 2017 and will feature a 3.5 m telescope cooled to 30 microns wavelength). We describe the scientific advances that will be made possible by this large increase in sensitivity and give details of the mission, spacecraft and focal plane conceptual design.
- Published
- 2009
- Full Text
- View/download PDF
50. How do non-native speakers perceive Japanese phrase final prosody? An experiment on the perception of pitch and rhythm by Chinese and German subjects
- Author
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Yabe, Hiroko, Nishinuma, Yukihiro, Hayashi, Akiko, Lin, Hong, Leng, Limin, Faculty of Pedagogy, Tokyo Gakugei University, Laboratoire Parole et Langage (LPL), Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS), Faculty of Letters, Chuo University (Chuo University), Laboratorio de Fonética, Universitat de Barcelona (UB), and (1) Grant-in-aid for Selected Research Program, Chuo University, Faculty of letters. (2) Grant-in-aid for Selected Research Program, Tokyo Gakugei University, Faculty of Pedagogy
- Subjects
Chinois ,Chinese ,rythme ,perception de hauteur ,[SCCO.LING]Cognitive science/Linguistics ,prosodie ,Japonais ,Langue seconde ,Japanese ,Allemand ,[SHS.LANGUE]Humanities and Social Sciences/Linguistics ,perception of rhythm ,phrase final prosody ,perception of pitch - Abstract
International audience; This study which supports the claim of a prosodic interference between L1 and L2, examines the perception of pitch and rhythm of Japanese by Chinese and German students. The experiment reported here, used 4 sentences selected from dialogues of role plays recorded by 10 female Tokyo speakers. Stimuli were presented to 45 Japanese and to 77 Chinese students from Beijing. Each stimuli was played 4 times to listeners through headsets. They were asked in two different tasks to determine whether the last syllable was, (1) rising or falling, (2) short or long. Variance analysis reveals a significant difference between subjects for the perception of melodic variation but no interference effect for rhythm.; Afin d'examiner l'interférence prosodique entre L1 - L2, nous avons effectué une expérience de perception sur la hauteur et le rythme du japonais auprès de sujets chinois et allemands. Le corpus de la première partie de l'expérience présentée ici est composé de 4 phrases qui sont extraites des dialogues de jeux de rôle interprétés par 10 locutrices de Tokyo. Il a été soumis à 45 étudiants japonais et 77 étudiants chinois de Pékin. Chaque phrase a été présentée 4 fois. Lors de 2 sessions distinctes deux tâches ont été demandées aux sujets : déterminer si la dernière syllable est (1) montante ou descendante; (2) brève ou longue. L'analyse de variance montre une différence significative entre les sujets pour la perception de la variation mélodique mais aucun effet d'interférence pour le rythme. L'analyse en cours pour les sujets allemands semble fournir des conclusions différentes.
- Published
- 2008
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