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37 results on '"Universidad Autonoma de San Luis Potosi [México] (UASLP)"'

1. Analytic eigenvalue perturbation theory for dynamical systems analysis

Author

Jie Chen, Silviu Niculescu, César Fernando Méndez Barrios, Xiang Chen, Department of Electrical Engineering [Riverside], University of California [Riverside] (UCR), University of California-University of California, Laboratoire des signaux et systèmes (L2S), CentraleSupélec-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Dynamical Interconnected Systems in COmplex Environments (DISCO), Inria Saclay - Ile de France, Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria)-Laboratoire des signaux et systèmes (L2S), CentraleSupélec-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-CentraleSupélec-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Facultad de Ingeniería (UASLP), Universidad Autonoma de San Luis Potosi [México] (UASLP), University of California [Riverside] (UC Riverside), and University of California (UC)-University of California (UC)

Subjects
[SPI]Engineering Sciences [physics], ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2021

2. Current vortices in aromatic carbon molecules

Author

Carmen Herrmann, Fabrice Mortessagne, Yenni P. Ortiz, Thomas Stegmann, Ulrich Kuhl, Thomas H. Seligman, Francois Leyvraz, Michael Deffner, J. A. Franco-Villafañe, Laboratorio de Cuernavaca del Instituto de Fısica, Universidad Nacional Autonoma de Mexico, Partenaires INRAE, Universidad Autonoma de San Luis Potosi [México] (UASLP), University of Hamburg, Institut de Physique de Nice (INPHYNI), Centre National de la Recherche Scientifique (CNRS)-Université Côte d'Azur (UCA)-Université Nice Sophia Antipolis (... - 2019) (UNS), and COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)

Subjects
Physics, Anthracene, Condensed Matter - Mesoscale and Nanoscale Physics, FOS: Physical sciences, Non-equilibrium thermodynamics, 02 engineering and technology, Electron, Ring (chemistry), 021001 nanoscience & nanotechnology, 01 natural sciences, Molecular physics, Vortex, Magnetic field, chemistry.chemical_compound, chemistry, Mesoscale and Nanoscale Physics (cond-mat.mes-hall), 0103 physical sciences, Molecule, Density functional theory, Current (fluid), 010306 general physics, 0210 nano-technology, Maxima, ComputingMilieux_MISCELLANEOUS, [PHYS.COND.CM-MSQHE]Physics [physics]/Condensed Matter [cond-mat]/Mesoscopic Systems and Quantum Hall Effect [cond-mat.mes-hall]
Abstract

The local current flow through three small aromatic carbon molecules, namely benzene, naphthalene and anthracene, is studied. Applying density functional theory and the non-equilibrium Green’s function method for transport, we demonstrate that pronounced current vortices exist at certain electron energies for these molecules. The intensity of these circular currents, which appear not only at the anti-resonances of the transmission but also in vicinity of its maxima, can exceed the total current flowing through the molecular junction and generate considerable magnetic fields. The π electron system of the molecular junctions is emulated experimentally by a network of macroscopic microwave resonators. The local current flows in these experiments confirm the existence of current vortices as a robust property of ring structures. The circular currents can be understood in terms of a simple nearest-neighbor tight-binding Hückel model. Current vortices are caused by the interplay of the complex eigenstates of the open system which have energies close-by the considered electron energy. Degeneracies, as observed in benzene and anthracene, can thus generate strong circular currents, but also non-degenerate systems like naphthalene exhibit current vortices. Small imperfections and perturbations can couple otherwise uncoupled states and induce circular currents.

Published
2020

3. Infrared unipolar XBn and XBp superlattice photodetectors

Author

Ulisses Zavala-Moran, Rodolphe Alchaar, Jean-Philippe Perez, Jean-Baptiste Rodriguez, Bouschet, M., Compean-Jasso, V. H., Francisco de Anda, Philippe Christol, Universidad Autonoma de San Luis Potosi [México] (UASLP), Institut d’Electronique et des Systèmes (IES), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Composants à Nanostructure pour le moyen infrarouge (NANOMIR), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), and LYNRED (Veurey-Voroize)

Subjects
[SPI.NANO]Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics, ComputingMilieux_MISCELLANEOUS, [SPI.TRON]Engineering Sciences [physics]/Electronics
Abstract

International audience

Published
2020

4. Precise surface gravities of δ Scuti stars from asteroseismology

Author

Mário J. P. F. G. Monteiro, J. Nieto, S. Barceló Forteza, A. Moya, Juan Carlos Suárez, A. García Hernández, Daniel R. Reese, Zhao Guo, J. Pascual-Granado, Susana Martín-Ruiz, R. Garrido, Institut Cavanilles de Biodiversitat i Biologia Evolutiva (ICBiBE), Universitat de València (UV), Departamento de Fitopatologia, University of Brasilia, Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), Laboratoire d'études spatiales et d'instrumentation en astrophysique (LESIA), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Instituto de Astrofisica de Canarias (IAC), Instituto de Investigacion en Comunicacion Optica (IICO), and Universidad Autonoma de San Luis Potosi [México] (UASLP)

Subjects
[PHYS]Physics [physics], Physics, 010504 meteorology & atmospheric sciences, Binary number, Astronomy, Astronomy and Astrophysics, Observable, Astrophysics, Light curve, 01 natural sciences, Asteroseismology, Stars, Photometry (astronomy), Astrophysics - Solar and Stellar Astrophysics, Space and Planetary Science, Planet, 0103 physical sciences, Content (measure theory), Astrophysics::Solar and Stellar Astrophysics, Astrophysics::Earth and Planetary Astrophysics, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], 010303 astronomy & astrophysics, ComputingMilieux_MISCELLANEOUS, Astrophysics::Galaxy Astrophysics, 0105 earth and related environmental sciences
Abstract

The work reported here demonstrates that it is possible to accurately determine surface gravities of $\delta$ Sct stars using the frequency content from high precision photometry and a measurement of the parallax. Using a sample of 10 eclipsing binary systems with a $\delta$ Sct component and the unique $\delta$ Sct star discovered with a transiting planet, WASP-33, we were able to refine the $\Delta\nu-\bar\rho$ relation. Using this relation and parallaxes, we obtained independent values for the masses and radii, allowing us to calculate the surface gravities without any constraints from spectroscopic or binary analysis. A remarkably good agreement was found between our results and those published, extracted from the analysis of the radial velocities and light curves of the systems. This reinforces the potential of $\Delta\nu$ as a valuable observable for $\delta$ Sct stars and settles the degeneracy problem for the $\log g$ determination through spectroscopy., Comment: 5 pages, 2 figures, 1 table

Published
2017

5. The 2019 Surface Acoustic Waves Roadmap

Author

P. Rovillain, Dirk Volkmer, Hubert J. Krenner, Andrew Cleland, Laura Thevenard, Christopher Bäuerle, Manuel S. Brugger, Jean Yves Duquesne, Tristan Meunier, Achim Wixforth, Alexander Reiner, Hailin Wang, Jonathan M. Cooper, E. A. Cerda-Méndez, Martin Wiklund, Gerhard Fischerauer, Florian Rehfeldt, Dmytro Denysenko, Yong Qing Fu, Emeline D.S. Nysten, Christoph Westerhausen, M. J. A. Schuetz, Max Marangolo, Marcelo Wu, Per Delsing, C. J. B. Ford, Henrik Bruus, Catherine Gourdon, Julien Reboud, Werner Dipl Phys Ruile, Geza Giedke, Kartik Srinivasan, Johannes Knörzer, J. Ignacio Cirac, Matthias Weiß, Krishna C. Balram, Ben Paschke, Paulo V. Santos, Geoff R. Nash, Chalmers University of Technology [Göteborg], University of Chicago, Harvard University [Cambridge], Max-Planck-Institut für Quantenoptik (MPQ), Max-Planck-Gesellschaft, Donostia International Physics Center (DIPC), University of the Basque Country/Euskal Herriko Unibertsitatea (UPV/EHU), National Institute of Standards and Technology [Gaithersburg] (NIST), Circuits électroniques quantiques Alpes (QuantECA ), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Cavendish Laboratory, University of Cambridge [UK] (CAM), Paul-Drude-Institut für Festkörperelektronik (PDI), Universidad Autonoma de San Luis Potosi [México] (UASLP), University of Oregon [Eugene], University of Augsburg [Augsburg], University of Exeter, Institut des Nanosciences de Paris (INSP), Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Photons, Magnons et Technologies Quantiques (INSP-E11), Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Acoustique pour les nanosciences (INSP-E3), Croissance et propriétés de systèmes hybrides en couches minces (INSP-E8), Universität Bayreuth, Technical University of Denmark [Lyngby] (DTU), Royal Institute of Technology [Stockholm] (KTH ), University of Glasgow, University of Northumbria at Newcastle [United Kingdom], University of Göttingen, University of Göttigen, Knörzer, J [0000-0002-7318-3018], Giedke, G [0000-0002-9676-5686], Cirac, JI [0000-0003-3359-1743], Baüerle, C [0000-0001-7393-0346], Ford, CJB [0000-0002-4557-3721], Santos, PV [0000-0002-0218-8030], Cerda-Méndez, E [0000-0002-6479-6664], Wang, H [0000-0001-7614-2003], Krenner, HJ [0000-0002-0696-456X], Nash, GR [0000-0002-5321-4163], Thevenard, L [0000-0002-4723-2955], Gourdon, C [0000-0001-9901-1399], Marangolo, M [0000-0001-6211-8168], Duquesne, JY [0000-0001-9156-8758], Fischerauer, G [0000-0003-2000-4730], Reboud, J [0000-0002-6879-8405], Cooper, JM [0000-0002-2358-1050], Fu, YQ [0000-0001-9797-4036], Rehfeldt, F [0000-0001-9086-3835], Westerhausen, C [0000-0001-7103-7060], and Apollo - University of Cambridge Repository

Subjects
Acoustics and Ultrasonics, Computer science, H600, Microfluidics, quantum acoustics, 02 engineering and technology, phononics, 01 natural sciences, QETLabs, 0103 physical sciences, Wireless, ddc:530, 010306 general physics, Quantum, ComputingMilieux_MISCELLANEOUS, business.industry, Surface acoustic wave, Ranging, Acoustic wave, surface acoustic waves, 021001 nanoscience & nanotechnology, Condensed Matter Physics, Engineering physics, Surfaces, Coatings and Films, Electronic, Optical and Magnetic Materials, [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], Radio frequency, 0210 nano-technology, business, Quantum acoustics
Abstract

Today, surface acoustic waves (SAWs) and bulk acoustic waves are already two of the very few phononic technologies of industrial relevance and can been found in a myriad of devices employing these nanoscale earthquakes on a chip. Acoustic radio frequency filters, for instance, are integral parts of wireless devices. SAWs in particular find applications in life sciences and microfluidics for sensing and mixing of tiny amounts of liquids. In addition to this continuously growing number of applications, SAWs are ideally suited to probe and control elementary excitations in condensed matter at the limit of single quantum excitations. Even collective excitations, classical or quantum are nowadays coherently interfaced by SAWs. This wide, highly diverse, interdisciplinary and continuously expanding spectrum literally unites advanced sensing and manipulation applications. Remarkably, SAW technology is inherently multiscale and spans from single atomic or nanoscopic units up even to the millimeter scale. The aim of this Roadmap is to present a snapshot of the present state of surface acoustic wave science and technology in 2019 and provide an opinion on the challenges and opportunities that the future holds from a group of renown experts, covering the interdisciplinary key areas, ranging from fundamental quantum effects to practical applications of acoustic devices in life science.

Published
2019

6. Sequencing and analysis of globally obtained human parainfluenza viruses 1 and 3 genomes

Author

Martha I. Nelson, Neha Gupta, Paolo Amedeo, Kelly J. Henrickson, Christopher D. Town, Samuel Cordey, Daniel E. Noyola, Cristina Videla, Susmita Shrivastava, Tuckweng Kok, Astrid Vabret, Rebecca A. Halpin, Michael E. Bose, Nadia Fedorova, Hernan Lorenzi, Marietjie Venter, Amelia Buys, Jie He, Jayati Bera, Medical College of Wisconsin [Milwaukee] (MCW), J. Craig Venter Institute, Fogarty International Center, National Institutes of Health [Bethesda] (NIH), Universidad Autonoma de San Luis Potosi [México] (UASLP), Centro de Educación Médica e Investigaciones Clínicas (CEMIC), University of South Australia [Adelaide], National Institute for Communicable Diseases [Johannesburg] (NICD), University of Pretoria [South Africa], Groupe de Recherche sur l'Adaptation Microbienne (GRAM 2.0), Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Normandie Université (NU)-Université de Caen Normandie (UNICAEN), Normandie Université (NU), Service de Virologie [CHU Caen], CHU Caen, Normandie Université (NU)-Tumorothèque de Caen Basse-Normandie (TCBN)-Normandie Université (NU)-Tumorothèque de Caen Basse-Normandie (TCBN), and Geneva University Hospital (HUG)

Subjects
RNA viruses, 0301 basic medicine, medicine.disease_cause, Genome, Database and Informatics Methods, Influenza A virus, Genome Evolution, Phylogeny, Pathology and laboratory medicine, ComputingMilieux_MISCELLANEOUS, Data Management, ddc:616, Recombination, Genetic, Genetics, Multidisciplinary, High-Throughput Nucleotide Sequencing, Phylogenetic Analysis, Genomics, Medical microbiology, 3. Good health, Phylogenetics, Human Parainfluenza Virus, Viruses, [SDV.MP.VIR]Life Sciences [q-bio]/Microbiology and Parasitology/Virology, Evolutionary Rate, Medicine, Pathogens, Sequence Analysis, Research Article, Computer and Information Sciences, Evolutionary Processes, Bioinformatics, Sequence analysis, Science, 030106 microbiology, Genome, Viral, Biology, Research and Analysis Methods, Microbiology, Molecular Evolution, Virus, Evolution, Molecular, 03 medical and health sciences, Sequence Motif Analysis, medicine, Humans, Influenza viruses, Evolutionary Systematics, Parainfluenza Virus 1, Human/genetics, Selection, Genetic, Taxonomy, Medicine and health sciences, Evolutionary Biology, Sequence Assembly Tools, Organisms, Viral pathogens, Biology and Life Sciences, Computational Biology, Sequence Analysis, DNA, Ion semiconductor sequencing, Genome Analysis, [SDV.MP.BAC]Life Sciences [q-bio]/Microbiology and Parasitology/Bacteriology, Genomics/methods, Parainfluenza Virus 1, Human, Parainfluenza Virus 3, Human, Microbial pathogens, 030104 developmental biology, Parainfluenza Virus 3, Human/genetics, Sequence Alignment, Orthomyxoviruses
Abstract

Human Parainfluenza viruses (HPIV) type 1 and 3 are important causes of respiratory tract infections in young children globally. HPIV infections do not confer complete protective immunity so reinfections occur throughout life. Since no effective vaccine is available for the two virus subtypes, comprehensive understanding of HPIV-1 and HPIV-3 genetic and epidemic features is important for diagnosis, prevention, and treatment of HPIV-1 and HPIV-3 infections. Relatively few whole genome sequences are available for both HPIV-1 and HPIV-3 viruses, so our study sought to provide whole genome sequences from multiple countries to further the understanding of the global diversity of HPIV at a whole-genome level. We collected HPIV-1 and HPIV-3 samples and isolates from Argentina, Australia, France, Mexico, South Africa, Switzerland, and USA from the years 2003-2011 and sequenced the genomes of 40 HPIV-1 and 75 HPIV-3 viruses with Sanger and next-generation sequencing with the Ion Torrent, Illumina, and 454 platforms. Phylogenetic analysis showed that the HPIV-1 genome is evolving at an estimated rate of 4.97 × 10-4 mutations/site/year (95% highest posterior density 4.55 × 10-4 to 5.38 × 10-4) and the HPIV-3 genome is evolving at a similar rate (3.59 × 10-4 mutations/site/year, 95% highest posterior density 3.26 × 10-4 to 3.94 × 10-4). There were multiple genetically distinct lineages of both HPIV-1 and 3 circulating on a global scale. Further surveillance and whole-genome sequencing are greatly needed to better understand the spatial dynamics of these important respiratory viruses in humans.

Published
2019

7. Time-delay Control of a Multi-Rotor VTOL Multi-Agent System Towards Transport Operations

Author

Juan Escareno, Jose J. Castillo-Zamora, F. Mendez-Barrios, Islam Boussaada, Ouiddad Labbani-Igbida, J. U. Alvarez-Munoz, Institut Polytechnique des Sciences Avancées (IPSA), Laboratoire des signaux et systèmes (L2S), Université Paris-Sud - Paris 11 (UP11)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), Systèmes et Réseaux Intelligents (XLIM-SRI), XLIM (XLIM), Université de Limoges (UNILIM)-Centre National de la Recherche Scientifique (CNRS)-Université de Limoges (UNILIM)-Centre National de la Recherche Scientifique (CNRS), Universidad Autonoma de San Luis Potosi [México] (UASLP), CentraleSupélec-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Université de Limoges (UNILIM)-Centre National de la Recherche Scientifique (CNRS), Dynamical Interconnected Systems in COmplex Environments (DISCO), Inria Saclay - Ile de France, Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria)-Laboratoire des signaux et systèmes (L2S), and CentraleSupélec-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-CentraleSupélec-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)

Subjects
0209 industrial biotechnology, Computer science, Rotor (electric), Multi-agent system, 020208 electrical & electronic engineering, PID controller, 02 engineering and technology, Systems modeling, law.invention, [SPI.AUTO]Engineering Sciences [physics]/Automatic, [SPI]Engineering Sciences [physics], 020901 industrial engineering & automation, Control theory, law, 0202 electrical engineering, electronic engineering, information engineering, Robot, Quaternion, Parametrization, ComputingMilieux_MISCELLANEOUS
Abstract

The present work deals with a consensus control for a multi-agent system composed by a mini Vertical Take-off and Landing (VTOL) rotorcrafts by means of a controller based on time-delay parametrization. The VTOL system modeling is presented using the quaternion parametrization to develop the attitude-stabilizing law of the aerial robots. The vehicle position dynamics are extended to the multi-agent case where a time-delayed PID control is designed in order to achieve general consensus in terms of formation control of the system. Finally, a detailed simulation study is presented to validate the effectiveness of the proposed control strategy, where it also considered a collective interaction.

Published
2019

8. A Comparative Stability Analysis of Underactuated Versus Fully-Actuated Rotorcrafts Having Time-Delay Feedback

Author

Juan Escareno, H. Mendez-Azua, O. Labbani, J. Coronado, César-Fernando Méndez-Barrios, J. Lopez-Hernandez, V. Ramirez-Rivera, Universidad Autonoma de San Luis Potosi [México] (UASLP), Systèmes et Réseaux Intelligents (XLIM-SRI), XLIM (XLIM), Université de Limoges (UNILIM)-Centre National de la Recherche Scientifique (CNRS)-Université de Limoges (UNILIM)-Centre National de la Recherche Scientifique (CNRS), Centro de Investigación Científica de Yucatán, Facultad de Ciencas [Mexico] (UASLP), and Universidad Jesuita de Guadalajara (ITESO)

Subjects
Coupling, 020301 aerospace & aeronautics, 0209 industrial biotechnology, Underactuation, Computer science, Stability charts, 02 engineering and technology, Numerical models, Translation (geometry), Stability (probability), [SPI.AUTO]Engineering Sciences [physics]/Automatic, Computer Science::Robotics, 020901 industrial engineering & automation, 0203 mechanical engineering, Control theory, Control system, Robot, ComputingMilieux_MISCELLANEOUS
Abstract

The actual paper provides a detailed comparative study of two rotorcraft configurations in terms of their stability with time-delay in the control loop of the system. These configurations correspond to the tilt-rotor (fully-actuated) and fixed-rotor (underactuated) rotorcraft. Such analysis considers the coupling between translation (slow dynamics) and rotational (fast dynamics) motions as a delayed system. Thus, a set of stability charts are presented to illustrate the stability profile for each configuration. We have carried out numerical models that captures essential dynamics of such aerial robots.

Published
2019

9. Non-holonomic flight Modeling and Control of a Tilt-rotor MAV

Author

César-Fernando Méndez-Barrios, D. Nieto-Hernandez, H. Mendez-Azua, Juan Escareno, L.A. Torres, V. Ramirez-Rivera, Universidad Autonoma de San Luis Potosi [México] (UASLP), Systèmes et Réseaux Intelligents (XLIM-SRI), XLIM (XLIM), Université de Limoges (UNILIM)-Centre National de la Recherche Scientifique (CNRS)-Université de Limoges (UNILIM)-Centre National de la Recherche Scientifique (CNRS), Centro de Investigación Científica de Yucatán, Universidad Iberoamericana de León, León, Guanajuato, Mexico, and Universidad Jesuita de Guadalajara (ITESO)

Subjects
0209 industrial biotechnology, Vector control, Computer science, Holonomic, Rotor (electric), Thrust, 02 engineering and technology, Tracking (particle physics), law.invention, [SPI.AUTO]Engineering Sciences [physics]/Automatic, Computer Science::Robotics, 020901 industrial engineering & automation, Tilt (optics), Control theory, law, 0202 electrical engineering, electronic engineering, information engineering, Trajectory, Robot, 020201 artificial intelligence & image processing, ComputingMilieux_MISCELLANEOUS
Abstract

The main goal of this paper is to introduce a new non-holonomic model and control of a tilt-rotor aerial robot for interactive operations via a 1DOF robotic manipulator. The modeling is derived by means of the Euler-Lagrange formulation, providing couplings between the robotic manipulator and the rotorcraft. The aerial robot is fully actuated and features thrust vector control, having a more flexible aerial profile. In terms of control, the Immersion and Invariance (I&I) control technique is applied in order to achieve the control objective (trajectory tracking). Finally, preliminary simulation results were conducted to evaluate and validate the control strategy for an interactive tilt-rotor micro aerial vehicle (MAV).

Published
2019

10. Weierstrass approach to asymptotic behavior characterization of critical imaginary roots for retarded differential equations

Author

Jie Chen, Alejandro Martínez-González, Liliana Félix, César-Fernando Méndez-Barrios, Silviu-Iulian Niculescu, Dynamical Interconnected Systems in COmplex Environments (DISCO), Laboratoire des signaux et systèmes (L2S), Université Paris-Sud - Paris 11 (UP11)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS)-Inria Saclay - Ile de France, Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria), Facultad de Ingeniería (UASLP), Universidad Autonoma de San Luis Potosi [México] (UASLP), Université Paris-Sud - Paris 11 (UP11)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), City University of Hong Kong [Hong Kong] (CUHK), and Research Grants Council, University Grants Committee (11260016111613) | CentraleSupelec | COPOCyT

Subjects
0209 industrial biotechnology, Control and Optimization, Newton Diagram, Differential equation, Applied Mathematics, Retarded Systems, 010102 general mathematics, Mathematical analysis, Subject (philosophy), 02 engineering and technology, Characterization (mathematics), 01 natural sciences, [SPI.AUTO]Engineering Sciences [physics]/Automatic, 020901 industrial engineering & automation, 0101 mathematics, Weierstrass polynomial, The Imaginary, ComputingMilieux_MISCELLANEOUS, Mathematics, AMS: 93C02
Abstract

This paper focuses on the analysis of the behavior of characteristic roots of time-delay systems, when the delay is subject to small parameter variations. The analysis is performed by means of the ...

Published
2019

11. Gene Expression Changes and Community Turnover Differentially Shape the Global Ocean Metatranscriptome

Author

Guillem Salazar, Lucas Paoli, Adriana Alberti, Jaime Huerta-Cepas, Hans-Joachim Ruscheweyh, Miguelangel Cuenca, Christopher M. Field, Luis Pedro Coelho, Corinne Cruaud, Stefan Engelen, Ann C. Gregory, Karine Labadie, Claudie Marec, Eric Pelletier, Marta Royo-Llonch, Simon Roux, Pablo Sánchez, Hideya Uehara, Ahmed A. Zayed, Georg Zeller, Margaux Carmichael, Céline Dimier, Joannie Ferland, Stefanie Kandels, Marc Picheral, Sergey Pisarev, Julie Poulain, Silvia G. Acinas, Marcel Babin, Peer Bork, Chris Bowler, Colomban de Vargas, Lionel Guidi, Pascal Hingamp, Daniele Iudicone, Lee Karp-Boss, Eric Karsenti, Hiroyuki Ogata, Stephane Pesant, Sabrina Speich, Matthew B. Sullivan, Patrick Wincker, Shinichi Sunagawa, Emmanuel Boss, Guy Cochrane, Michael Follows, Gabriel Gorsky, Nigel Grimsley, Olivier Jaillon, Stefanie Kandels-Lewis, Fabrice Not, Nicole Poulton, Jeroen Raes, Christian Sardet, Lars Stemmann, European Commission, Ministerio de Economía y Competitividad (España), Institut de Biologie François JACOB (JACOB), 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 d'océanographie de Villefranche (LOV), Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de la Mer de Villefranche (IMEV), Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Takuvik Joint International Laboratory ULAVAL-CNRS, Université Laval [Québec] (ULaval)-Centre National de la Recherche Scientifique (CNRS), Adaptation et diversité en milieu marin (AD2M), Station biologique de Roscoff (SBR), Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Instituto de Fisica [Mexico] (UASLP), Universidad Autonoma de San Luis Potosi [México] (UASLP), Institute of Microbiology and Swiss Institute of Bioinformatics, CNS, Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Center for Genomic Regulation (CRG-UPF), CIBER de Epidemiología y Salud Pública (CIBERESP), Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology in Zürich [Zürich] (ETH Zürich), European Molecular Biology Laboratory [Heidelberg] (EMBL), Bayer Cropscience, Immunobiologie Cellulaire et Moléculaire des Infections Parasitaires, Université Pierre et Marie Curie - Paris 6 (UPMC)-IFR113-Institut National de la Santé et de la Recherche Médicale (INSERM), Laboratoire d'Océanographie Physique et Spatiale (LOPS), Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS), Ohio State University [Columbus] (OSU), Institut de Chimie de Clermont-Ferrand - Clermont Auvergne (ICCF), Sigma CLERMONT (Sigma CLERMONT)-Université Clermont Auvergne (UCA)-Centre National de la Recherche Scientifique (CNRS), European Molecular Biology Laboratory [Grenoble] (EMBL), Station biologique de Roscoff [Roscoff] (SBR), Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Takuvik Joint ULaval/CNRS Laboratory, Centre National de la Recherche Scientifique (CNRS)-Laval University [Québec], Institut de biologie de l'ENS Paris (UMR 8197/1024) (IBENS), Département de Biologie - ENS Paris, École normale supérieure - Paris (ENS Paris)-École normale supérieure - Paris (ENS Paris)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Institut de Génomique d'Evry (IG), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-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)-Université Paris-Saclay, Institute of Marine Sciences / Institut de Ciències del Mar [Barcelona] (ICM), Consejo Superior de Investigaciones Científicas [Spain] (CSIC), University of Maine, European Molecular Biology Laboratory European Bioinformatics Institute, Centre National de la Recherche Scientifique (CNRS)-Station biologique de Roscoff (SBR), Department of Earth, Atmospheric and Planetary Sciences [MIT, Cambridge] (EAPS), Massachusetts Institute of Technology (MIT), Observatoire océanologique de Villefranche-sur-mer (OOVM), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Biologie intégrative des organismes marins (BIOM), Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Observatoire océanologique de Banyuls (OOB), Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Institut méditerranéen d'océanologie (MIO), Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS), Sezione Ecologia Marina Integrata, Stazione Zoologica Anton Dohrn (SZN), Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Information génomique et structurale (IGS), Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS), Center for Marine Environmental Sciences [Bremen] (MARUM), Universität Bremen, Bigelow Laboratory for Ocean Sciences, Department of Bioscience Engineering, Vrije Universiteit Brussel (VUB), Laboratoire de Biologie du Développement de Villefranche sur mer (LBDV), Institut de la Mer de Villefranche (IMEV), Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU), Laboratoire de physique des océans (LPO), Genoscope - Centre national de séquençage [Evry] (GENOSCOPE), Université Paris-Saclay-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS), Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology [Zürich] (ETH Zürich), Université Paris-Saclay, Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS), Centro de Investigaciones Biológicas (CSIC), Consejo Superior de Investigaciones Científicas [Madrid] (CSIC), Kyoto University, Adaptation et diversité en milieu marin (ADMM), Institut national des sciences de l'Univers (INSU - CNRS)-Station biologique de Roscoff (SBR), Kyoto University [Kyoto], Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de la Mer de Villefranche (IMEV), and Centre National de la Recherche Scientifique (CNRS)-Université Laval [Québec] (ULaval)

Subjects
ASSEMBLY PROCESSES, Effects of global warming on oceans, DIVERSITY, microbial ecology, global ocean microbiome, CARBON, 0302 clinical medicine, biogeochemistry, Gene expression, ComputingMilieux_MISCELLANEOUS, 0303 health sciences, CLIMATE-CHANGE, Geography, Microbiota, Temperature, CYANOBACTERIA, [SDV.BIBS]Life Sciences [q-bio]/Quantitative Methods [q-bio.QM], GENOME, BACTERIA, community turnover, Life Sciences & Biomedicine, Biochemistry & Molecular Biology, SURFACE, Oceans and Seas, Tara Oceans, Biology, Article, metagenome, General Biochemistry, Genetics and Molecular Biology, ocean warming, 03 medical and health sciences, eco-systems biology, Microbial ecology, [SDV.BBM.GTP]Life Sciences [q-bio]/Biochemistry, Molecular Biology/Genomics [q-bio.GN], metatranscriptome, Seawater, RNA, Messenger, 14. Life underwater, Gene, [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography, 030304 developmental biology, Science & Technology, Biogeochemistry, Molecular Sequence Annotation, Cell Biology, Environmental variation, Gene Expression Regulation, Cardiovascular and Metabolic Diseases, 13. Climate action, Metagenomics, Evolutionary biology, BIODIVERSITY, sense organs, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, Transcriptome, 030217 neurology & neurosurgery, gene expression change, BIOGEOGRAPHY
Abstract

This article is contribution number 94 of Tara Oceans.-- 37 pages, 20 figures, 1 table, supplementary information https://doi.org/10.1016/j.cell.2019.10.014.-- All raw reads are available through ENA at https://www.ebi.ac.uk/ena using the identifiers listed in https://doi.org/10.5281/zenodo.3473199. Processed data are accessible at https://www.ebi.ac.uk/biostudies/studies/S-BSST297, and additional information is provided in https://doi.org/10.5281/zenodo.3473199 and at the companion website: https://www.ocean-microbiome.org. Scripts used in this manuscript are available through a Github repository at https://github.com/SushiLab/omrgc_v2_scripts, Ocean microbial communities strongly influence the biogeochemistry, food webs, and climate of our planet. Despite recent advances in understanding their taxonomic and genomic compositions, little is known about how their transcriptomes vary globally. Here, we present a dataset of 187 metatranscriptomes and 370 metagenomes from 126 globally distributed sampling stations and establish a resource of 47 million genes to study community-level transcriptomes across depth layers from pole-to-pole. We examine gene expression changes and community turnover as the underlying mechanisms shaping community transcriptomes along these axes of environmental variation and show how their individual contributions differ for multiple biogeochemically relevant processes. Furthermore, we find the relative contribution of gene expression changes to be significantly lower in polar than in non-polar waters and hypothesize that in polar regions, alterations in community activity in response to ocean warming will be driven more strongly by changes in organismal composition than by gene regulatory mechanisms, Tara Oceans (that includes both the Tara Oceans and Tara Oceans Polar Circle expeditions) would not exist without the leadership of the Tara Expeditions Foundation and the continuous support of 23 institutes (https://oceans.taraexpeditions.org). We further thank the commitment of the following sponsors: CNRS (in particular Groupement de Recherche GDR3280 and the Research Federation for the study of Global Ocean Systems Ecology and Evolution, FR2022/Tara Oceans-GOSEE); European Molecular Biology Laboratory (EMBL); Genoscope/CEA; the French Ministry of Research; the French Government “Investissements d’Avenir” programmes OCEANOMICS (ANR-11-BTBR-0008), FRANCE GENOMIQUE (ANR-10-INBS-09-08), MEMO LIFE (ANR-10-LABX-54), and PSL∗ Research University (ANR-11-IDEX-0001-02); Gordon and Betty Moore Foundation (award 3790); the US National Science Foundation (OCE#1536989 and OCE#1829831 to M.B.S.); the European Union’s Horizon 2020 research and innovation programme (grant agreement 686070); and the Ohio Supercomputer and the EMBL and ETH Zürich HPC facilities for computational support. Funding for the collection and processing of the TARA data set was provided by NASA Ocean Biology and Biogeochemistry program under grants NNX11AQ14G, NNX09AU43G, NNX13AE58G, and NNX15AC08G to the University of Maine and Canada Excellence Research Chair on Remote sensing of Canada’s new Arctic frontier Canada Foundation for Innovation. C.B. acknowledges funding from the European Research Council (ERC) under the European Union's Horizon 2020 research and innovation program (grant agreement 835067). S.G.A. thanks the Spanish Ministry of Economy and Competitiveness (CTM2017-87736-R). S. Sunagawa. is supported by the ETH and the Helmut Horten Foundation and by funding from the Swiss National Foundation (205321_184955)

Published
2019
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12. Some Remarks on the Asymptotic Behavior for Quasipolynomials with Two Delays

Author

Alejandro Martínez-González, Silviu-Iulian Niculescu, Jie Chen, César-Fernando Méndez-Barrios, Facultad de Ingeniería (UASLP), Universidad Autonoma de San Luis Potosi [México] (UASLP), Dynamical Interconnected Systems in COmplex Environments (DISCO), Laboratoire des signaux et systèmes (L2S), Université Paris-Sud - Paris 11 (UP11)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS)-Inria Saclay - Ile de France, Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria), Université Paris-Sud - Paris 11 (UP11)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), and City University of Hong Kong [Hong Kong] (CUHK)

Subjects
0209 industrial biotechnology, Polynomial, Newton Diagram, 010102 general mathematics, 02 engineering and technology, Quasi-polynomial, 01 natural sciences, Stability (probability), Weierstrass Polynomial, [SPI.AUTO]Engineering Sciences [physics]/Automatic, 020901 industrial engineering & automation, Control and Systems Engineering, ComputingMethodologies_SYMBOLICANDALGEBRAICMANIPULATION, Applied mathematics, 0101 mathematics, Retarded systems, ComputingMilieux_MISCELLANEOUS, Mathematics
Abstract

This paper proposes an analytical method to characterize the behavior of critical multiple roots for quasi-polynomials with two delays. The proposed approach is based on the Weierstrass polynomial, that is employed as a tool to analyze the stability behavior of such characteristic roots with respect to small variations on the delay parameters. A numerical example illustrates the proposed results.

Published
2018

13. Modeling and Control of an Interactive Tilt-rotor MAV for In-contact Cracks-sensing Operations

Author

Islam Boussaada, Silviu-Iulian Niculescu, Juan Escareno, César-Fernando Méndez-Barrios, Emilio J. González-Galván, D. Nieto-Hernandez, J. U. Alvarez-Munoz, Facultad de Ingeniería (UASLP), Universidad Autonoma de San Luis Potosi [México] (UASLP), Institut Polytechnique des Sciences Avancées (IPSA), Informatique, Biologie Intégrative et Systèmes Complexes (IBISC), Université d'Évry-Val-d'Essonne (UEVE), Laboratoire des signaux et systèmes (L2S), Université Paris-Sud - Paris 11 (UP11)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), Dynamical Interconnected Systems in COmplex Environments (DISCO), Université Paris-Sud - Paris 11 (UP11)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS)-Inria Saclay - Ile de France, and Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria)

Subjects
0209 industrial biotechnology, Observer (quantum physics), Nonlinear Control Systems, Computer science, Rotor (electric), 020208 electrical & electronic engineering, Robot manipulator, Autonomous Monitoring Operation, 02 engineering and technology, Aerial interactivity, Invariant (physics), Disturbance Observers, law.invention, [SPI.AUTO]Engineering Sciences [physics]/Automatic, Computer Science::Robotics, Formalism (philosophy of mathematics), 020901 industrial engineering & automation, Control and Systems Engineering, law, Control theory, 0202 electrical engineering, electronic engineering, information engineering, ComputingMilieux_MISCELLANEOUS
Abstract

This paper presents the dynamical model of an interactive Tilt-rotor MAV with friction forces as a disturbance. Such a model is derived by means of the Euler-Lagrange formalism and considers the effects of the friction at the 1DOF robotic manipulator (modeled as a mass-spring-damper system). In order to guarantee the closed-loop system stability, both control scheme and observer are designed following the Immersion and Invariance approach, where the main goal of the controller is to achieve a tracking task. Finally, some numerical examples have been considered in order to evaluate and validate the control strategy and the observer for an interactive tilt-rotor micro aerial vehicle (MAV).

Published
2018

14. Phenolic compounds accumulation in wild and domesticated Cladodes from Opuntia spp. and its benefits in cardiovascular diseases

Author

Anne Négre Salvayre, Ana P. Barba de la Rosa, María del Socorro Santos Díaz, Françoise Guéraud, Institut National de la Santé et de la Recherche Médicale (INSERM), Prévention et promotion de la cancérogénèse par les aliments (ToxAlim-PPCA), ToxAlim (ToxAlim), Institut National de la Recherche Agronomique (INRA)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Ecole Nationale Vétérinaire de Toulouse (ENVT), Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Ecole d'Ingénieurs de Purpan (INPT - EI Purpan), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National de la Recherche Agronomique (INRA)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées, Universidad Autonoma de San Luis Potosi [México] (UASLP), Instituto Potosino de Investigación Cientifica y Tecnológica (IPICYT), and ANR-10-INTB-1702,BIOPUNTIA,Opuntia spp comme source de nouveaux composés à visée pharmaceutique. Caractérisation de composés bioactifs et de leur évolution lors de la domestication.(2010)

Subjects
0106 biological sciences, 0303 health sciences, [SDV]Life Sciences [q-bio], Biology, biology.organism_classification, 01 natural sciences, 3. Good health, 03 medical and health sciences, Botany, Cladodes, Domestication, ComputingMilieux_MISCELLANEOUS, 030304 developmental biology, 010606 plant biology & botany
Abstract

International audience

Published
2018

15. Cortical and subcortical brain morphometry differences between patients with autism spectrum disorders (ASD) and healthy individuals across the lifespan:results from the ENIGMA-ASD working group

Author

Sarah Durston, Ilan Dinstein, Paul M. Thompson, Mara Parellada, Clodagh M. Murphy, Ilaria Gori, Mauricio Moller Martinho, Shlomi Haar, Louise Gallagher, Fengfeng Zhou, Devon Shook, Neda Jahanshad, Jackie Fitzgerald, Geraldo F. Busatto, Kirsten O'Hearn, Declan Murphy, Christine Ecker, Adriana Di Martino, Jane McGrath, Gregory L. Wallace, Evdokia Anagnostou, Celso Arango, Christine Deruelle, Eileen Daly, Katya Rubia, Christine M. Freitag, Pedro G.P. Rosa, Michela Tosetti, Jan K. Buitelaar, Bob Oranje, Margot J. Taylor, Marlene Behrmann, Maria Jalbrzikowski, Damien A. Fair, Daan van Rooij, Jennifer Fedor, Filippo Muratori, Beatriz Luna, Guillaume Auzias, Joost Janssen, Alessandra Retico, Liesbeth Hoekstra, Jason Lerch, Sara Calderoni, Fabio Luis Souza Duran, Donders Center for Cognitive Neuroimaging, Donders Centre for Cognitive Neuroimaging, Radboud university [Nijmegen]-Radboud university [Nijmegen], Human Genetics Center, The University of Texas Health Science Center at Houston (UTHealth), Psychiatry Department, Adolescent Unit, Hospital General Universitario Gregorio Marañón, Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM, Institut de Neurosciences de la Timone (INT), Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS), University of São Paulo (USP), NYU Langone Medical Center, University Medical Center [Utrecht], Institute of Psychiatry, Psychology & Neuroscience, King's College London, King‘s College London, Oregon Health and Science University [Portland] (OHSU), Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, Goethe-Universität Frankfurt am Main, Division of Mental Health and Addiction, Oslo University Hospital [Oslo], David Geffen School of Medicine [Los Angeles], University of California [Los Angeles] (UCLA), University of California-University of California, The Hospital for sick children [Toronto] (SickKids), Instituto de Fisica (IF), Universidad Autonoma de San Luis Potosi [México] (UASLP), IRCCS Fondazione Stella Maris [Pisa], Natbrainlab, Department of Forensic and Neurodevelopmental Sciences, Institute of psychiatry-King‘s College London, University of Pittsburgh School of Medicine, Pennsylvania Commonwealth System of Higher Education (PCSHE), Instituto Superior Técnico, Universidade Técnica de Lisboa, Child Psychiatry, Laboratory of Neuro Imaging [Los Angeles] (LONI), Stella Maris, IRCCS, Department of Chemistry, University of Western Ontario, Western University, Department of Psychiatry, Radboud University Medical Center [Nijmegen], Radboud University [Nijmegen]-Radboud University [Nijmegen], Universidade de São Paulo = University of São Paulo (USP), and University of California (UC)-University of California (UC)

Subjects
Male, 0301 basic medicine, Autism Spectrum Disorder, Autism, [SDV]Life Sciences [q-bio], Audiology, 0302 clinical medicine, Reference Values, Child, ComputingMilieux_MISCELLANEOUS, Cerebral Cortex, Lifespan, Age Factors, ENIGMA, Healthy subjects, Brain, Middle Aged, Magnetic Resonance Imaging, Psychiatry and Mental health, Autism spectrum disorder, Child, Preschool, Healthy individuals, Female, Psychology, Adult, medicine.medical_specialty, Adolescent, behavioral disciplines and activities, Article, 150 000 MR Techniques in Brain Function, Young Adult, 03 medical and health sciences, Neuroimaging, Neuroimaging genetics, AUTISMO, Image Interpretation, Computer-Assisted, Healthy control, mental disorders, medicine, Humans, Brain Morphology, Neurodevelopmental disorders Donders Center for Medical Neuroscience [Radboudumc 7], Brain morphometry, medicine.disease, 030104 developmental biology, Case-Control Studies, Neuroscience, 030217 neurology & neurosurgery
Abstract

Objective:Neuroimaging studies show structural differences in both cortical and subcortical brain regions in children and adults with autism spectrum disorder (ASD) compared with healthy subjects. Findings are inconsistent, however, and it is unclear how differences develop across the lifespan. The authors investigated brain morphometry differences between individuals with ASD and healthy subjects, cross-sectionally across the lifespan, in a large multinational sample from the Enhancing Neuroimaging Genetics Through Meta-Analysis (ENIGMA) ASD working group.Method:The sample comprised 1,571 patients with ASD and 1,651 healthy control subjects (age range, 2–64 years) from 49 participating sites. MRI scans were preprocessed at individual sites with a harmonized protocol based on a validated automated-segmentation software program. Mega-analyses were used to test for case-control differences in subcortical volumes, cortical thickness, and surface area. Development of brain morphometry over the lifespan was modeled using a fractional polynomial approach.Results:The case-control mega-analysis demonstrated that ASD was associated with smaller subcortical volumes of the pallidum, putamen, amygdala, and nucleus accumbens (effect sizes [Cohen’s d], 0.13 to –0.13), as well as increased cortical thickness in the frontal cortex and decreased thickness in the temporal cortex (effect sizes, −0.21 to 0.20). Analyses of age effects indicate that the development of cortical thickness is altered in ASD, with the largest differences occurring around adolescence. No age-by-ASD interactions were observed in the subcortical partitions.Conclusions:The ENIGMA ASD working group provides the largest study of brain morphometry differences in ASD to date, using a well-established, validated, publicly available analysis pipeline. ASD patients showed altered morphometry in the cognitive and affective parts of the striatum, frontal cortex, and temporal cortex. Complex developmental trajectories were observed for the different regions, with a developmental peak around adolescence. These findings suggest an interplay in the abnormal development of the striatal, frontal, and temporal regions in ASD across the lifespan.

Published
2017

16. Sampling decomposition and asymptotic zeros behaviour of sampled-data SISO systems. An eigenvalue-based approach

Author

Liliana Félix, César-Fernando Méndez-Barrios, Silviu-Iulian Niculescu, Universidad Autonoma de San Luis Potosi [México] (UASLP), Dynamical Interconnected Systems in COmplex Environments (DISCO), Laboratoire des signaux et systèmes (L2S), Université Paris-Sud - Paris 11 (UP11)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS)-Inria Saclay - Ile de France, Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria), Université Paris-Sud - Paris 11 (UP11)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), Institut de Systématique, Evolution, Biodiversité (ISYEB ), Muséum national d'Histoire naturelle (MNHN)-École pratique des hautes études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS), Muséum national d'Histoire naturelle (MNHN)-Université Pierre et Marie Curie - Paris 6 (UPMC)-École Pratique des Hautes Études (EPHE), and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)

Subjects
0209 industrial biotechnology, Mathematical optimization, Control and Optimization, Applied Mathematics, 010102 general mathematics, Sampling (statistics), 02 engineering and technology, 01 natural sciences, [SPI.AUTO]Engineering Sciences [physics]/Automatic, 020901 industrial engineering & automation, Control and Systems Engineering, [INFO.INFO-AU]Computer Science [cs]/Automatic Control Engineering, Decomposition (computer science), Applied mathematics, 0101 mathematics, ComputingMilieux_MISCELLANEOUS, Eigenvalues and eigenvectors, Mathematics
Abstract

International audience

Published
2015

17. Intraradicular dentine silanization by a new silicon-based endodontic sealer

Author

César Gaitán Fonseca, Rosalba Patiño-Herrera, Emmanuelle Perez, Juan Angel Morales Rueda, Frédéric Cuisinier, Laboratoire de Bioingénierie et NanoSciences (LBN), Université Montpellier 1 (UM1)-Université de Montpellier (UM), Instituto de Fisica (IF), and Universidad Autonoma de San Luis Potosi [México] (UASLP)

Subjects
Materials science, Polymers and Plastics, General Chemical Engineering, Root canal, 030206 dentistry, 02 engineering and technology, Quartz crystal microbalance, 021001 nanoscience & nanotechnology, Biomaterials, Contact angle, 03 medical and health sciences, 0302 clinical medicine, medicine.anatomical_structure, stomatognathic system, Polymerization, Silanization, medicine, Dentin, Adhesive, Composite material, Fourier transform infrared spectroscopy, 0210 nano-technology, [SDV.IB.BIO]Life Sciences [q-bio]/Bioengineering/Biomaterials, ComputingMilieux_MISCELLANEOUS
Abstract

We synthesize a new silicon-based endodontic sealer that reacts at room and body temperature. The sealer is initially hydrophilic allowing flowing and filling every accessory tubule of the root canal and turns hydrophobic during polymerization. A hydrophobic surface of dentinal walls could limit fluid penetration by reversing capillary pressure and reducing the space between the intraradicular dentinal wall and the endodontic sealer by covalent bonds. For this purpose, we did a surface treatment on dentinal walls to expose hydroxyl groups usable for silanization by a covalent attachment between the tetraethyl orthosilictate (TEOS) and dentinal wall, transforming dentin walls in a hydrophobic surface; while TEOS also acts as cross-linking of the sealer which ensured a good sealing. The sealer polymerization was followed by Fourier transform infrared spectroscopy (FTIR), Quartz crystal microbalance (QCM-D), water contact angle (WCA) and rheological analysis. Radiopacity, resistance to dislodgment and dimensional alterations are in accordance with international standards (ISO standard 6876/2002). Working and setting time may be manipulated by varying TEOS and catalyst concentration. Zero filtration was obtained in the liquid filtration test.

Published
2016

18. Large magnetic anisotropy enhancement in size controlled Ni nanowires electrodeposited into nanoporous alumina templates

Author

Laurent Vila, Gaël Hamoir, Armando Encinas, Hanako Okuno, Y Velázquez-Galván, Stéphanie Pouget, J. De La Torre Medina, Luc Piraux, Universidad Nacional Autónoma de México = National Autonomous University of Mexico (UNAM), Université Catholique de Louvain = Catholic University of Louvain (UCL), Universidad Autonoma de San Luis Potosi [México] (UASLP), Service Général des Rayons X (SGX ), Modélisation et Exploration des Matériaux (MEM), Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut de Recherche Interdisciplinaire de Grenoble (IRIG), 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)-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)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Laboratoire d'Etude des Matériaux par Microscopie Avancée (LEMMA ), SPINtronique et TEchnologie des Composants (SPINTEC), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Universidad Nacional Autónoma de México (UNAM), Institut de Recherche Interdisciplinaire de Grenoble (IRIG), and Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])

Subjects
Materials science, Magnetometer, Nanowire, Bioengineering, 02 engineering and technology, 01 natural sciences, law.invention, Condensed Matter::Materials Science, Magnetization, Nuclear magnetic resonance, law, 0103 physical sciences, General Materials Science, Texture (crystalline), Electrical and Electronic Engineering, Anisotropy, ComputingMilieux_MISCELLANEOUS, 010302 applied physics, [PHYS]Physics [physics], Condensed matter physics, Mechanical Engineering, General Chemistry, 021001 nanoscience & nanotechnology, Ferromagnetic resonance, Magnetic anisotropy, Mechanics of Materials, 0210 nano-technology, Order of magnitude
Abstract

A large enhancement of the magnetic anisotropy of Ni nanowires (NWs) embedded in anodic aluminium oxide porous membranes is obtained as a result of an induced magnetoelastic (ME) anisotropy contribution. This unusual large anisotropy enhancement depends on the diameter of the NWs and exceeds the magnetostatic (MS) contribution. As a consequence, it leads to effective magnetic anisotropy energies as large as 1.4 × 10(6) erg cm(-3), which are of the same order of magnitude and comparable to the MS energies of harder magnetic materials like Co NWs. Specifically, from ferromagnetic resonance experiments, the magnetic anisotropy of the NWs has been observed to increase as its diameter is decreased, leading to values that are about four times larger than the corresponding value when only the MS anisotropy is present. Our results are consistent with the recently proposed growth mechanism of Ni NWs that proceeds via a poly-crystalline stage at the bottom followed by a single-crystalline stage with texture [110] parallel to the axis of the NWs. A strong correlation between reducing the diameter of the NWs with the decrease of the length of the poly-crystalline segment and the enhancement of the effective magnetic anisotropy has been shown. Magnetization curves obtained from alternating gradient magnetometry experiments show that the average ME anisotropy results from the competition between the magnetic anisotropies of both crystalline segments of the NWs. Understanding the influence of size and confinement effects on the magnetic properties of nanocomposites is of prime interest for the development of novel and agile devices.

Published
2016

19. Comparative shotgun proteomic analysis of wild and domesticated Opuntia spp. species shows a metabolic adaptation through domestication

Author

Antonio Reyes-Agüero, Anne Nègre-Salvayre, Ana P. Barba de la Rosa, Michel Rossignol, Carole Pichereaux, Françoise Guéraud, Odile Schiltz, Eric E. Hernández-Domínguez, María del Socorro Santos-Díaz, Marizel Astello-García, Institut de pharmacologie et de biologie structurale (IPBS), Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées, Instituto Potosino de Investigación Cientifica y Tecnológica (IPICYT), Facultad de Ciencias Químicas, Universidad de Concepción [Chile], Instituto de Investigación en Zonas Desérticas, Universidad Autonoma de San Luis Potosi [México] (UASLP), Prévention et promotion de la cancérogénèse par les aliments (ToxAlim-PPCA), ToxAlim (ToxAlim), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Ecole Nationale Vétérinaire de Toulouse (ENVT), Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Ecole d'Ingénieurs de Purpan (INPT - EI Purpan), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National de la Recherche Agronomique (INRA)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National de la Recherche Agronomique (INRA), Institut des Maladies Métaboliques et Cardiovasculaires (I2MC), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National de la Santé et de la Recherche Médicale (INSERM), ilateral Mexico-France Project Collaboration 'Biopuntia' grant no. 142873, Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), Régulations cellulaires: lipidoses et atherosclerose, IFR 31 Louis Bugnard (IFR 31), Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Toulouse [Toulouse]-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Toulouse [Toulouse]-Université Toulouse III - Paul Sabatier (UT3), Université McGill, Institut National de la Recherche Agronomique (INRA)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Ecole Nationale Vétérinaire de Toulouse (ENVT), Université Fédérale Toulouse Midi-Pyrénées-Ecole d'Ingénieurs de Purpan (INPT - EI Purpan), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-CHU Toulouse [Toulouse]-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-CHU Toulouse [Toulouse]-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM), McGill University = Université McGill [Montréal, Canada], Centre National de la Recherche Scientifique (CNRS), Université Fédérale Toulouse Midi-Pyrénées, Fédération de Recherche en Biologie de Toulouse (FR BT), ProdInra, Archive Ouverte, Universidad de Concepción - University of Concepcion [Chile], and Régulations cellulaires: lipidoses et atherosclerose.

Subjects
Proteomics, 0106 biological sciences, 0301 basic medicine, opuntia, Acclimatization, [SDV]Life Sciences [q-bio], Shotgun analysis, Biophysics, Shotgun, 01 natural sciences, Biochemistry, Domestication, 03 medical and health sciences, hplc ms ms, Botany, Cladodes, [SDV.BV]Life Sciences [q-bio]/Vegetal Biology, carbohydrate metabolism, LC-MS/MS, ComputingMilieux_MISCELLANEOUS, 2. Zero hunger, biology, 1C-metabolism, métabolisme glucidique, 15. Life on land, biology.organism_classification, Adaptation, Physiological, Arid, [SDV] Life Sciences [q-bio], Metabolism, 030104 developmental biology, Opuntia spp, Fruit, Proteome, Species richness, RNA-seq, 010606 plant biology & botany
Abstract

The Opuntia genus is widely distributed in America, but the highest richness of wild species are found in Mexico, as well as the most domesticated Opuntia ficus-indica, which is the most domesticated species and an important crop in agricultural economies of arid and semiarid areas worldwide. During domestication process, the Opuntia morphological characteristics were favored, such as less and smaller spines in cladodes and less seeds in fruits, but changes at molecular level are almost unknown. To obtain more insights about the Opuntia molecular changes through domestication, a shotgun proteomic analysis and database-dependent searches by homology was carried out. > 1000 protein species were identified and by using a label-free quantitation method, the Opuntia proteomes were compared in order to identify differentially accumulated proteins among wild and domesticated species. Most of the changes were observed in glucose, secondary, and 1C metabolism, which correlate with the observed protein, fiber and phenolic compounds accumulation in Opuntia cladodes. Regulatory proteins, ribosomal proteins, and proteins related with response to stress were also observed in differential accumulation. These results provide new valuable data that will help to the understanding of the molecular changes of Opuntia species through domestication. Biological significance Opuntia species are well adapted to dry and warm conditions in arid and semiarid regions worldwide, and they are highly productive plants showing considerable promises as an alternative food source. However, there is a gap regarding Opuntia molecular mechanisms that enable them to grow in extreme environmental conditions and how the domestication processes has changed them. In the present study, a shotgun analysis was carried out to characterize the proteomes of five Opuntia species selected by its domestication degree. Our results will help to a better understanding of proteomic features underlying the selection and specialization under evolution and domestication of Opuntia and will provide a platform for basic biology research and gene discovery.

Published
2016

20. Determinants of community structure in the global plankton interactome

Author

Colomban de Vargas, Stéphane Audic, Isabel Ferrera, Gabriel Gorsky, Jean Weissenbach, Guillem Salazar, Johan Decelle, Pablo Sánchez, Marta Royo-Llonch, Patrick Wincker, Francesco d'Ovidio, Jun Wang, Léo Berline, Ana María Cabello, Tara Oceans Coordinators, Marie-José Garet-Delmas, Simon Roux, Silvia G. Acinas, J. Cesar Ignacio-Espinosa, Peer Bork, Fabrice Not, Fabrizio Carcillo, Lars Stemmann, Hiroyuki Ogata, Marc Picheral, Chris Bowler, Céline Dimier, Nicolas Henry, Luc De Meester, Youssef Darzi, Eric Karsenti, Elena Lara, Shinichi Sunagawa, Francisco M. Cornejo-Castillo, Sébastien Colin, Stephane Pesant, Sabrina Speich, Karoline Faust, Marta Sebastián, Samuel Chaffron, Lionel Guidi, Caroline Souffreau, Jeroen Raes, Laurent Coppola, Sarah Searson, Stefanie Kandels-Lewis, Gipsi Lima-Mendez, Flora Vincent, Lucie Bittner, Gianluca Bontempi, Matthew B. Sullivan, Evolution des Protistes et Ecosystèmes Pélagiques (EPEP), Adaptation et diversité en milieu marin (ADMM), Institut national des sciences de l'Univers (INSU - CNRS)-Station biologique de Roscoff (SBR), Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Station biologique de Roscoff (SBR), Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Adaptation et diversité en milieu marin (AD2M), Station biologique de Roscoff [Roscoff] (SBR), Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Station biologique de Roscoff [Roscoff] (SBR), Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS), Institut de biologie de l'ENS Paris (IBENS), Département de Biologie - ENS Paris, École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Rega Institute - VIB Center for the Biology of Disease, Department of Microbiology and Immunology, Bioinformatics and (eco-)systems Biology Laboratory, Louvain, Belgique, Université Catholique de Louvain = Catholic University of Louvain (UCL), Laboratoire d'océanographie de Villefranche (LOV), Observatoire océanologique de Villefranche-sur-mer (OOVM), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Institut méditerranéen d'océanologie (MIO), Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS), Processus de couplage à Petite Echelle, Ecosystèmes et Prédateurs Supérieurs (PEPS), Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN), Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Department of Marine Biology and Oceanography [Barcelone], Institute of Marine Sciences / Institut de Ciències del Mar [Barcelona] (ICM), Consejo Superior de Investigaciones Científicas [Madrid] (CSIC)-Consejo Superior de Investigaciones Científicas [Madrid] (CSIC), Pangea, Instituto de Fisica [Mexico] (UASLP), Universidad Autonoma de San Luis Potosi [México] (UASLP), Universidad de Granada = University of Granada (UGR), European Molecular Biology Laboratory [Heidelberg] (EMBL), Diversité et Interactions au sein du Plancton Océanique (DIPO), Institute for Chemical Research, Kyoto University, Laboratoire de physique des océans (LPO), Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS), Genoscope - Centre national de séquençage [Evry] (GENOSCOPE), 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 de Génomique d'Evry (IG), Université Paris-Saclay-Institut de Biologie François JACOB (JACOB), 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)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), UCL - SST/LIBST - Louvain Institute of Biomolecular Science and Technology, Station biologique de Roscoff (SBR), Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Station biologique de Roscoff (SBR), Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Département de Biologie - ENS Paris, École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-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 Pierre et Marie Curie - Paris 6 (UPMC)-Muséum national d'Histoire naturelle (MNHN)-Institut Pierre-Simon-Laplace (IPSL (FR_636)), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-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 Pierre et Marie Curie - Paris 6 (UPMC)-Muséum national d'Histoire naturelle (MNHN)-Institut Pierre-Simon-Laplace (IPSL (FR_636)), Department of Marine Biology and Oceanography, Universidad de Granada (UGR), Kyoto University [Kyoto], Institut de Biologie François JACOB (JACOB), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, and Institut de biologie de l'ENS Paris (UMR 8197/1024) (IBENS)

Subjects
Abiotic component, Biotic component, Multidisciplinary, Primary producers, Ecology, fungi, Community structure, [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph], 15. Life on land, Biology, Plankton, Interactome, Food chain, 13. Climate action, Abundance (ecology), 14. Life underwater, ComputingMilieux_MISCELLANEOUS
Abstract

Lima-Mendez, Gipsi ... et. al.-- 9 pages, 4 figures, 1 table, supplementary materials www.sciencemag.org/content/348/6237/1262073/suppl/DC1, Species interaction networks are shaped by abiotic and biotic factors. Here, as part of the Tara Oceans project, we studied the photic zone interactome using environmental factors and organismal abundance profiles and found that environmental factors are incomplete predictors of community structure. We found associations across plankton functional types and phylogenetic groups to be nonrandomly distributed on the network and driven by both local and global patterns. We identified interactions among grazers, primary producers, viruses, and (mainly parasitic) symbionts and validated networkgenerated hypotheses using microscopy to confirm symbiotic relationships. We have thus provided a resource to support further research on ocean food webs and integrating biological components into ocean models. © 2015, American Association for the Advancement of Science. All rights reserved, We thank the commitment of the following people and sponsors:Centre National de la Recherche Scientifique (CNRS) (in particular, Groupement de Recherche GDR3280), European Molecular Biology Laboratory (EMBL), Genoscope/CEA, VIB, Stazione Zoologica Anton Dohrn, UNIMIB, Fund for Scientific Research – Flanders (G.L.M., K.F., S.C., and J.R.), Rega Institute (J.R.), KU Leuven(J.R.), The French Ministry of Research, the French Government “Investissements d’Avenir” programmes OCEANOMICS (ANR-11-BTBR-0008), FRANCE GENOMIQUE (ANR-10-INBS-09-08), MEMO LIFE (ANR-10-LABX-54), PSL* Research University (ANR-11-IDEX-0001-02), ANR (projects POSEIDON/ANR-09-BLAN-0348, PHYTBACK/ANR-2010-1709-01, PROMETHEUS/ANR-09-PCSGENM- 217, TARA GIRUS/ANR-09-PCS-GENM-218, European Union FP7 (MicroB3/No.287589, IHMS/HEALTH-F4-2010-261376, ERC Advanced Grant Awards to CB (Diatomite: 294823), Gordon and Betty Moore Foundation grant (3790) to M.B.S., Spanish Ministry of Science and Innovation grant CGL2011-26848/BOS MicroOcean PANGENOMICS to S.G.A., TANIT (CONES 2010-0036) from the Agència de Gestió d´Ajusts Universitaris i Reserca funded to S.G.A., JSPS KAKENHI grant number 26430184 to H.O., FWO, BIO5, Biosphere 2, Agnès b., the Veolia Environment Foundation, Region Bretagne, Lorient Agglomeration, World Courier, Illumina, the EDF Foundation, FRB, the Prince Albert II de Monaco Foundation, Etienne Bourgois, the Tara schooner, and its captain and crew. We are also grateful to the French Ministry of Foreign Affairs for supporting the expedition and to the countries that graciously granted sampling permissions. Tara Oceans would not exist without continuous support from 23 institutes (http://oceans.taraexpeditions.org)

Published
2015

21. Output feedback stabilisation of single-input single-output linear systems with I/O network-induced delays. An eigenvalue-based approach

Author

Mauro Maya-Méndez, Jie Chen, César-Fernando Méndez-Barrios, Silviu-Iulian Niculescu, Facultad de Ciencas [Mexico] (UASLP), Universidad Autonoma de San Luis Potosi [México] (UASLP), Dynamical Interconnected Systems in COmplex Environments (DISCO), Laboratoire des signaux et systèmes (L2S), Université Paris-Sud - Paris 11 (UP11)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS)-Inria Saclay - Ile de France, Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria), Université Paris-Sud - Paris 11 (UP11)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), and City University of Hong Kong [Hong Kong] (CUHK)

Subjects
0209 industrial biotechnology, Work (thermodynamics), Class (set theory), eigenvalue perturbation, 010102 general mathematics, Linear system, Stability (learning theory), 02 engineering and technology, stability, 01 natural sciences, Computer Science Applications, [SPI.AUTO]Engineering Sciences [physics]/Automatic, Set (abstract data type), 020901 industrial engineering & automation, Control and Systems Engineering, Control theory, [INFO.INFO-AU]Computer Science [cs]/Automatic Control Engineering, matrix pencil, 0101 mathematics, Divide-and-conquer eigenvalue algorithm, Eigenvalues and eigenvectors, Eigenvalue perturbation, ComputingMilieux_MISCELLANEOUS, time-delay systems, Mathematics
Abstract

This work addresses the output feedback stabilisation problem for a class of linear single-input single-output systems subject to I/O network delays. More precisely, we are interested in the characterisation of the set of delay and gain parameters guaranteeing the stability of the closed-loop system. To perform such an analysis, we adopt an eigenvalue perturbation based approach. Various illustrative numerical examples complete the presentation.

Published
2014

22. Comparative proteomic analysis of Opuntia spp. in relation with its domestication process

Author

Pichereaux, Carole, Astello-Garcia, Marizel, Santos-Diaz, MS, Reyes-Aguero, Antonio, Guéraud, Françoise, Nègre-Salvayre, Anne, Barba de la Rosa, Ana-Paulina, Rossignol, M, Institut de pharmacologie et de biologie structurale (IPBS), Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées, Instituto Potosino de Investigación Cientifica y Tecnológica (IPICYT), Facultad de Ciencias Químicas, Universidad de Concepción [Chile], Universidad Autonoma de San Luis Potosi [México] (UASLP), Prévention et promotion de la cancérogénèse par les aliments (ToxAlim-PPCA), ToxAlim (ToxAlim), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Ecole Nationale Vétérinaire de Toulouse (ENVT), Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Ecole d'Ingénieurs de Purpan (INPT - EI Purpan), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National de la Recherche Agronomique (INRA)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National de la Recherche Agronomique (INRA), Institut National de la Santé et de la Recherche Médicale (INSERM), and Projet ANR Blanc International BIOPUNTIA

Subjects
[SDV]Life Sciences [q-bio], ComputingMilieux_MISCELLANEOUS
Abstract

National audience

Published
2013

23. Shotgun proteomic analysis of Opuntia spp. reveals adaptation changes through domestication process

Author

Picheraux, Carole, Astello-Garcia, Marizel, Santos-Diaz, MS, Reyes-Aguero, A., Guéraud, Françoise, Nègre-Salvayre, Anne, Barba de la Rosa, A. P., Rossignol, Michel, Centre National de la Recherche Scientifique (CNRS), Instituto Potosino de Investigación Cientifica y Tecnológica (IPICYT), Universidad Autonoma de San Luis Potosi [México] (UASLP), Prévention et promotion de la cancérogénèse par les aliments (ToxAlim-PPCA), ToxAlim (ToxAlim), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Ecole Nationale Vétérinaire de Toulouse (ENVT), Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Ecole d'Ingénieurs de Purpan (INPT - EI Purpan), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National de la Recherche Agronomique (INRA)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National de la Recherche Agronomique (INRA), and Institut National de la Santé et de la Recherche Médicale (INSERM)

Subjects
[SDV]Life Sciences [q-bio], ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2013

24. Root canal hydrophobization by dentinal silanization: Improvement of silicon-based endodontic treatment tightness

Author

Pierre-Yves Collard Dutilleul, Olivier Romieu, Emmanuelle Perez, Vincent Semetey, Bernard Levallois, Frédéric Cuisinier, Amaury Pozos-Guillén, César Gaitán Fonseca, László Zimányi, Laboratoire de Bioingénierie et NanoSciences (LBN), Université Montpellier 1 (UM1)-Université de Montpellier (UM), Universidad Autonoma de San Luis Potosi [México] (UASLP), Immunologie et chimie thérapeutiques (ICT), Cancéropôle du Grand Est-Centre National de la Recherche Scientifique (CNRS), and Instituto de Fisica (IF)

Subjects
Silicon, Materials science, Scanning electron microscope, Biomedical Engineering, 02 engineering and technology, Biomaterials, Contact angle, Root Canal Filling Materials, 03 medical and health sciences, chemistry.chemical_compound, Dental Materials, 0302 clinical medicine, stomatognathic system, Materials Testing, Spectroscopy, Fourier Transform Infrared, Humans, Fourier transform infrared spectroscopy, Composite material, [SDV.IB.BIO]Life Sciences [q-bio]/Bioengineering/Biomaterials, ComputingMilieux_MISCELLANEOUS, 030206 dentistry, Silanes, 021001 nanoscience & nanotechnology, Octadecyltrichlorosilane, Silane, Root Canal Therapy, chemistry, Chemical engineering, Silanization, Sodium hypochlorite, Dentin, Microscopy, Electron, Scanning, Surface modification, [SDV.IB]Life Sciences [q-bio]/Bioengineering, 0210 nano-technology, Hydrophobic and Hydrophilic Interactions
Abstract

A new strategy to improve silicon-based endodontic treatment tightness by dentine hydrophobization is presented in this work: root dentine was silanized to obtain a hydrophobic dentine-sealer interface that limits fluid penetration. This strategy was based on the grafting of aliphatic carbon chains on the dentine through a silanization with the silane end groups [octadecyltrichlorosilane (OTS) and octadecyltriethoxysilane]. Dentine surface was previously pretreated, applying ethylenediaminetetraacetic acid and sodium hypochlorite, to expose hydroxyl groups of collagen for the silane grafting. Collagen fibers exposure after pretreatment was visible with scanning electron microscopy, and Fourier transform infrared (FTIR) spectroscopy showed their correct exposition for the silanization (amide I and II, with 1630, 1580, and 1538 cm⁻¹ peaks corresponding to the vibration of C=O and C--N bonds). The grafting of aliphatic carbon chains was confirmed by FTIR (peaks at 2952 and 2923 cm⁻¹ corresponding to the stretching of C--H bonds) and by the increasing of the water contact angle. The most efficient hydrophobization was obtained with OTS in ethyl acetate, with a water contact angle turning from 51° to 109°. Gas and liquid permeability tests showed an increased seal tightness after silanization: the mean gas and water flows dropped from 2.02 × 10⁻⁸ to 1.62 × 10⁻⁸ mol s⁻¹ and from 10.8 × 10⁻³ to 5.4 × 10⁻³ µL min⁻¹, respectively. These results show clear evidences to turn hydrophilic dentine surface into a hydrophobic surface that may improve endodontic sealing.

Published
2013

25. Methods for Debris Flow Hazard and Risk Assessment

Author

Byron Quan Luna, Michel Jaboyedoff, Jean-Philippe Malet, Melanie Kappes, Sami O. Akbas, Jan Blahut, Alexandre Remaître, Theo van Asch, Instituto de Fisica (IF), Universidad Autonoma de San Luis Potosi [México] (UASLP), Università degli Studi di Milano-Bicocca = University of Milano-Bicocca (UNIMIB), University of Wien, Institut de physique du globe de Strasbourg (IPGS), Université de Strasbourg (UNISTRA)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Institut national des sciences de l'Univers (INSU - CNRS)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Faculty of Geosciences, Utrecht University [Utrecht], Quanterra, Lausanne, Switzerland, Quanterra, Institute of Geomatics and Analysis of Risk (IGAR), Université de Lausanne = University of Lausanne (UNIL), European Project: 36273,MOUNTAIN-RISKS, Università degli Studi di Milano-Bicocca [Milano] (UNIMIB), Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS), and Université de Lausanne (UNIL)

Subjects
Hazard (logic), Return period, 010504 meteorology & atmospheric sciences, Human systems engineering, Computer science, 0211 other engineering and technologies, Vulnerability, 02 engineering and technology, 01 natural sciences, Variety (cybernetics), Debris flow, Lead (geology), Risk analysis (engineering), 13. Climate action, [SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology, Risk assessment, ComputingMilieux_MISCELLANEOUS, 021101 geological & geomatics engineering, 0105 earth and related environmental sciences
Abstract

Debris flow events yield a threat to different components of mountainous environments not only as the result of the process evolution but of the interaction with human systems and their coupled vulnerabilities. A variety of models exists for characterising the hazard that the different mass-flow phenomena present. In the case of dynamic run-out models, they are able to forecast the propagation of material after the initial failure and to delineate the zone where the elements at risk will suffer an impact with a certain level of intensity. The results of these models are an appropriate input for vulnerability and risk assessments. An important feature of using run-out models is the possibility to perform forward analyses and forecast changes in hazards. However, still most of the work using these models is based on the calibration of parameters doing a back calculation of past events. Given the number of unknown parameters and the fact that most of the rheological parameters cannot be measured in the laboratory or in the field, it is very difficult to parameterize the run-out models. For this reason the application of run-out models is mostly used for back analysis of past events and very few studies attempts to achieve a forward modelling with the available run-out models. A reason for this is the substantial degree of uncertainty that still characterizes the definition of the run-out model parameters. Since a variety of models exists for simulating mass-flows and for identifying the intensity of the hazardous phenomena, it is important to assess these models, perform a parameterization and reduce their uncertainties. This will enable to improve the understanding to assess the hazard and will provide the link with vulnerability curves that will lead eventually to generate risk curves and quantify the risk.

Published
2013

26. Scattering of dilute thermal atom clouds on optical Weber beams

Author

H. Hattermann, Simon Bernon, Rocío Jáuregui, C. L. Hernández-Cedillo, József Fortágh, Instituto de Fisica [Mexico] (UASLP), Universidad Autonoma de San Luis Potosi [México] (UASLP), Physikalisches Institut [Tübingen], and Eberhard Karls Universität Tübingen = Eberhard Karls University of Tuebingen

Subjects
Electromagnetic field, Physics, Angular momentum, [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], [PHYS.COND.GAS]Physics [physics]/Condensed Matter [cond-mat]/Quantum Gases [cond-mat.quant-gas], Scattering, 01 natural sciences, Atomic and Molecular Physics, and Optics, Symmetry (physics), 010309 optics, [PHYS.QPHY]Physics [physics]/Quantum Physics [quant-ph], Phase space, 0103 physical sciences, Atom, [SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic, Atomic physics, 010306 general physics, Beam (structure), ComputingMilieux_MISCELLANEOUS, Structured light
Abstract

We report the experimental observation and a theoretical description of the scattering of free falling dilute thermal clouds of ${}^{87}$Rb atoms by microscopically structured light beams with parabolic-cylindrical symmetry. These structured beams are known in the literature as Weber beams. High-fidelity Weber beams are generated by means of a spatial light modulator and an annular spatial filtering process, which yields a quasipropagation-invariant electromagnetic field in the region of interaction with the atom cloud. The dynamics of the atomic density profile and the phase space distribution of the scattered atoms is explored. A natural dynamical variable of Weber modes is the product of the angular momentum along the axis of propagation of the beam with a component of linear momentum perpendicular to that axis. To pave the way of the understanding about the transfer of this variable, we study the evolution of the analogous atomic variable.

Published
2013

27. Chemical treatment of the intra-canal dentin surface: a new approach to modify dentin hydrophobicity

Author

Vincent Semetey, Emmanuelle Perez, Héctor Flores, Olivier Romieu, Roel Cruz, Frédéric Cuisinier, Amaury Pozos-Guillén, César Gaitán-Fonseca, Pierre-Yves Collart-Dutilleul, Laboratoire de Bioingénierie et NanoSciences (LBN), Université Montpellier 1 (UM1)-Université de Montpellier (UM), Facultad de Ingeniería (UASLP), and Universidad Autonoma de San Luis Potosi [México] (UASLP)

Subjects
Time Factors, Materials science, Root canal, Smear layer, Dentistry, 02 engineering and technology, Contact angle, 03 medical and health sciences, chemistry.chemical_compound, 0302 clinical medicine, Surface properties, medicine, Dentin, Humans, Tooth Root, [SDV.IB.BIO]Life Sciences [q-bio]/Bioengineering/Biomaterials, General Dentistry, ComputingMilieux_MISCELLANEOUS, Dental Leakage, business.industry, Reproducibility of Results, Chemical modification, Original Articles, 030206 dentistry, Penetration (firestop), Silanes, Octadecyltrichlorosilane, 021001 nanoscience & nanotechnology, Root Canal Therapy, Dentin Permeability, lcsh:RK1-715, medicine.anatomical_structure, chemistry, Smear Layer, lcsh:Dentistry, Silanization, Microscopy, Electron, Scanning, Dental Pulp Cavity, 0210 nano-technology, business, Hydrophobic and Hydrophilic Interactions, Biomedical engineering
Abstract

Objective This study evaluated the hydrophobicity of dentin surfaces that were modified through chemical silanization with octadecyltrichlorosilane (OTS). Material and Methods An in vitro experimental study was performed using 40 human permanent incisors that were divided into the following two groups: non-silanized and silanized. The specimens were pretreated and chemically modified with OTS. After the chemical modification, the dentin hydrophobicity was examined using a water contact angle measurement (WCA). The effectiveness of the modification of hydrophobicity was verified by the fluid permeability test (FPT). Results and Conclusions Statistically significant differences were found in the values of WCA and FPT between the two groups. After silanization, the hydrophobic intraradicular dentin surface exhibited in vitro properties that limit fluid penetration into the sealed root canal. This chemical treatment is a new approach for improving the sealing of the root canal system.

Published
2013

28. Analysis of debris flow behavior with a one dimensional run-out model incorporating entrainment

Author

Jean-Philippe Malet, B. Quan Luna, Alexandre Remaître, C.J. van Westen, Th.W.J. van Asch, Instituto de Fisica (IF), Universidad Autonoma de San Luis Potosi [México] (UASLP), Institut de physique du globe de Strasbourg (IPGS), Institut national des sciences de l'Univers (INSU - CNRS)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Faculty of Geosciences, Utrecht University [Utrecht], Université de Strasbourg (UNISTRA)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), International Institute for Geo-Information Science and Earth Observation (ITC), International Institute for Geo-Information Science and Earth Observation, International Institute for Geo- information Science and Earth Observation (ITC), University of Twente [Netherlands], Department of Earth Systems Analysis, Faculty of Geo-Information Science and Earth Observation, University of Twente, and UT-I-ITC-4DEarth

Subjects
010504 meteorology & atmospheric sciences, Continuum mechanics, Flow (psychology), 0211 other engineering and technologies, Geology, Landslide, Laminar flow, 02 engineering and technology, Geotechnical Engineering and Engineering Geology, 22/4 OA procedure, 01 natural sciences, Debris, Run-out, Debris flow, Environmental science, Geotechnical engineering, [SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology, Entrainment (chronobiology), ComputingMilieux_MISCELLANEOUS, 021101 geological & geomatics engineering, 0105 earth and related environmental sciences
Abstract

Estimating the magnitude and the intensity of rapid landslides like debris flows is fundamental to evaluate quantitatively the hazard in a specific location. Dynamic run-out models are able to characterize the distribution of the material, its intensity and define the zones where the exposed elements will experience an impact. These models can provide valuable inputs for vulnerability and risk calculations. However, most dynamic run-out models assume a constant volume during the motion of the flow, ignoring the important role of material entrained along its path. Consequently, they neglect that the increase of volume can enhance or reduce the mobility of the flow and can significantly influence the size of the potential impact area. Limited work has been done to quantify the entrainment process and only a few have proposed physical explanations for it. One of the reasons is that material entrainment is a complex process and an adequate understanding of the phenomenon is needed to facilitate the development of appropriate dynamic models. A proper erosion mechanism needs to be established in the analyses of debris flows that will improve the results of dynamic modeling and consequently the quantitative evaluation of risk. The objective of this paper is to present and evaluate the performance of a 1D debris flow model with a material entrainment concept based on limit equilibrium considerations and the generation of excess pore water pressure through undrained loading of the in-situ bed material. The debris flow propagation model is based on a one dimensional continuum mechanics approach using a depth-integrated approximation based on the shallow water assumption (Saint–Venant equations). The flow is treated as a laminar one-phase material, in which behavior is controlled by a visco-plastic Coulomb–Bingham rheology. The model parameters are evaluated and the model performance is tested on a debris flow event that occurred in 2003 in the Faucon torrent (Southern French Alps).

Published
2012

29. Origin of the adakite–high-Nb basalt association and its implications for postsubduction magmatism in Baja California, Mexico: Discussion

Author

Alfredo Aguillón-Robles, Carlos Pallares, Thierry Calmus, René C. Maury, Mathieu Benoit, Marcel Bohn, Michel Grégoire, Hervé Bellon, Domaines Océaniques (LDO), Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Observatoire des Sciences de l'Univers-Institut d'écologie et environnement-Centre National de la Recherche Scientifique (CNRS), Université européenne de Bretagne - European University of Brittany (UEB), Estacion Regional del Noroeste, Universidad Nacional Autónoma de México (UNAM), Dynamique terrestre et planétaire (DTP), 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), Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Université Fédérale Toulouse Midi-Pyrénées-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Departamento de Geologia, and Universidad Autonoma de San Luis Potosi [México] (UASLP)

Subjects
Basalt, Fractional crystallization (geology), 010504 meteorology & atmospheric sciences, Subduction, Mantle wedge, [SDE.MCG]Environmental Sciences/Global Changes, Geochemistry, [SDU.STU.PE]Sciences of the Universe [physics]/Earth Sciences/Petrography, Geology, 010502 geochemistry & geophysics, 01 natural sciences, 13. Climate action, Asthenosphere, [SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry, Magmatism, Adakite, Mafic, ComputingMilieux_MISCELLANEOUS, 0105 earth and related environmental sciences
Abstract

Constraining the origin of the adakite–high-Nb basalt (HNB) association in Baja California, Mexico, is critical to a better understanding of global arc magmatism. Currently the preferred explanation for the close spatial and temporal association of the two rock suites is through melting of the basaltic portion of the subducted Farallon-Cocos plate, thus providing support for the slab-melting origin of adakites elsewhere. Moreover, a tectono-magmatic model involving the production of both adakite and HNB from slab melts offers a comprehensive explanation for the origin of the atypical, arc-related, postsubduction magmatism in Baja California. This paper proposes alternative models for the origin of HNB and postsubduction magmatism in Baja California, wherein the unusual geologic setting of western Mexico and westward movement of North America permitted the influx of Pacific asthenosphere beneath the adjacent Gulf of California after the cessation of subduction. Unlike the previous tectono-magmatic model, the new models propose that the asthenosphere provided a direct source for postsubduction tholeiitic and rare alkali magmas that were erupted in Baja California as tholeiites and HNB, respectively. Fractional crystallization of some of the HNB magmas plus assimilation of tholeiitic materials produced Nb-enriched basalts (NEB). The influx of Pacific asthenosphere after the cessation of subduction also provided thermal energy to melt the mafic lower Baja California crust, producing adakite rocks, and the preexist-ing metasomatized mantle wedge, producing bajaites and calc-alkaline magmas.

Published
2009

30. Surface passivation of GaInAsSb phodiodes with thioacetamides

Author

André Joullié, Yvan Cuminal, F. Chevrier, G. Ferblantier, Philippe Christol, P. Calas, J. Nieto, A. Salesse, Institut d’Electronique et des Systèmes (IES), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier (ICGM ICMMM), Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Université Montpellier 1 (UM1)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut de Chimie du CNRS (INC), Instituto de Investigacion en Comunicacion Optica (IICO), Universidad Autonoma de San Luis Potosi [México] (UASLP), Micro électronique, Composants, Systèmes, Efficacité Energétique (M@CSEE), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), and Composants à Nanostructure pour le moyen infrarouge (NANOMIR)

Subjects
010302 applied physics, Passivation, Chemistry, Stereochemistry, Analytical chemistry, Heterojunction, 02 engineering and technology, [CHIM.MATE]Chemical Sciences/Material chemistry, 021001 nanoscience & nanotechnology, Condensed Matter Physics, 01 natural sciences, Cutoff frequency, Photodiode, law.invention, chemistry.chemical_compound, law, 0103 physical sciences, Ammonium sulphide, heterojunction mesa photodiodes, Thioacetamide, 0210 nano-technology, PACS, ComputingMilieux_MISCELLANEOUS, Leakage (electronics)
Abstract

AlGaAsSb/GaInAsSb heterojunction mesa photodiodes having 2.2 µm cutoff wavelength, grown by MBE on (p) GaSb substrates, have been passivated using thioacetamide CH4CSNH2 and ammonium sulphide (NH4)2S. Superior characteristics were obtained from devices processed with thioacetamide in acid medium (pH = 2.4). At room temperature the surface leakage currents were suppressed, and the photodiodes showed R0A product as high as 16 Ωcm2 and detectivity D* (2 µm, 0 V) ∼ 1010 cm Hz1/2 W–1. A model explaining sulfuration mechanisms with thioacetamide and (NH4)2S is proposed. (© 2007 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)

Published
2007

31. Anesthésie gazeuse des porcs. Qualités des viandes de porcs étourdis avec différents mélanges gazeux

Author

E. M. Claudia Terlouw, Thierry Astruc, Véronique Deiss, Claude de Oliveira Ferreira, Espinosa L., ProdInra, Migration, Qualité des Produits Animaux (QuaPA), Institut National de la Recherche Agronomique (INRA), Universidad Autonoma de San Luis Potosi [México] (UASLP), Facultad de Ciencias Químicas, and Universidad de Concepción [Chile]

Subjects
[SDV.SA]Life Sciences [q-bio]/Agricultural sciences, [SDV.SA] Life Sciences [q-bio]/Agricultural sciences, [SDV]Life Sciences [q-bio], qualité de la viande, ComputingMilieux_MISCELLANEOUS, anesthésie, porc
Abstract

National audience

Published
2006

32. Anesthésie gazeuse des porcs : variations physiologiques et comportementales et qualités des viandes

Author

Terlouw, Claudia, Astruc, Thierry, Deiss, Véronique, Espinosa, L., Qualité des Produits Animaux (QuaPA), Institut National de la Recherche Agronomique (INRA), and Universidad Autonoma de San Luis Potosi [México] (UASLP)

Subjects
viande, [SDV.IDA]Life Sciences [q-bio]/Food engineering, anesthesie gazeuse, comportement, [SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering, porcin, qualité de la viande, abattage, ComputingMilieux_MISCELLANEOUS
Abstract

National audience

Published
2006

33. 2.3 um Single-mode tunable lasers in cw at RT: design and characterization

Author

Ouvrard, A., Cerutti, L., Angellier, J., Vicet, A., Barat, D., Rouillard, Y., Genty, F., Romanini, D., Cerda, E., Garnache, A., Centre d'Electronique et de Micro-optoélectronique de Montpellier (CEM2), Université Montpellier 2 - Sciences et Techniques (UM2)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Interdisciplinaire de Physique [Saint Martin d’Hères] (LIPhy), Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF), and Universidad Autonoma de San Luis Potosi [México] (UASLP)

Subjects
ComputingMilieux_MISCELLANEOUS, [SPI.TRON]Engineering Sciences [physics]/Electronics
Abstract

International audience

Published
2006

34. Carrier Concentration Control of GaSb/GaInAsSb System

Author

F. Chevrier, André Joullié, Philippe Christol, H. Aït‐Kaci, M. Mebarki, F. de Anda, J. Nieto, Jean-Louis Lazzari, Centre d'Electronique et de Micro-optoélectronique de Montpellier (CEM2), Université Montpellier 2 - Sciences et Techniques (UM2)-Centre National de la Recherche Scientifique (CNRS), Instituto de Investigacion en Comunicacion Optica (IICO), and Universidad Autonoma de San Luis Potosi [México] (UASLP)

Subjects
Materials science, Doping, 0211 other engineering and technologies, Analytical chemistry, chemistry.chemical_element, 02 engineering and technology, 021001 nanoscience & nanotechnology, Epitaxy, Acceptor, Concentration ratio, [SPI.TRON]Engineering Sciences [physics]/Electronics, chemistry, [SPI.NANO]Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics, 0210 nano-technology, Tellurium, Indium, ComputingMilieux_MISCELLANEOUS, 021106 design practice & management, Molecular beam epitaxy, Solid solution
Abstract

The residual carrier concentration of GaSb and GaSb‐lattice matched Ga1−xInxAsySb1−y alloys (x = 0.12–0.26; y = 0.9x) grown by liquid phase epitaxy (LPE) and molecular beam epitaxy (MBE) was studied as a function of growth temperature, V/III ratio and alloy composition. Typical carrier concentrations p ∼ 2–3×1016 cm−3 were obtained for undoped GaSb grown by MBE at 480°C, by LPE from Ga‐rich melt at low temperature (400°C), and by LPE from Sb‐rich melts at ∼600°C. The native acceptor defect responsible of the high p‐type residual doping in GaSb is reduced when the indium concentration is increased, and disappears for indium rich alloys (x = 0.23, 0.26). Tellurium compensation was used for controlled n‐type doping in the (0.05–30)×1017 cm−3 range. A maximum of free carrier concentration was 1.5×1018 cm−3 for LPE layers, 2×1018 cm−3 for MBE layers grown at 1.0 μm/h, 3.5×1018 cm−3 for MBE layers grown at 0.2 μm/h. SIMS measurements showed Te concentrations of more than 1020 at/cm3, suggesting the formation of ternary GaSb1−xTex solid solution.

Published
2006

35. Optimization of InAsSb photodetector for non-cryogenic operation in the mid-infrared range

Author

H. Aït-Kaci, F. Chevrier, Philippe Christol, J. Nieto, A. Salesse, Jean-Baptiste Rodriguez, Pierre Grech, André Joullié, Centre d'Electronique et de Micro-optoélectronique de Montpellier (CEM2), Université Montpellier 2 - Sciences et Techniques (UM2)-Centre National de la Recherche Scientifique (CNRS), Instituto de Investigacion en Comunicacion Optica (IICO), Universidad Autonoma de San Luis Potosi [México] (UASLP), Institut de recherches sur la catalyse et l'environnement de Lyon (IRCELYON), Université Claude Bernard Lyon 1 (UCBL), and Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)

Subjects
Passivation, Mid infrared, Photodetector, 02 engineering and technology, 01 natural sciences, law.invention, Optics, law, 0103 physical sciences, Materials Chemistry, Electrical and Electronic Engineering, [SPI.NANO]Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics, ComputingMilieux_MISCELLANEOUS, Leakage (electronics), 010302 applied physics, Diffusion transport, business.industry, Chemistry, Surfaces and Interfaces, Sulfur passivation, 021001 nanoscience & nanotechnology, Condensed Matter Physics, Surfaces, Coatings and Films, Electronic, Optical and Magnetic Materials, Photodiode, [SPI.TRON]Engineering Sciences [physics]/Electronics, 0210 nano-technology, business, Molecular beam epitaxy
Abstract

We present an InAsSb interband photodetector grown by molecular beam epitaxy on GaSb substrate which operates in the mid-infrared domain (3-5 μm). To achieve uncooled high performance detection, the design of the structure was optimized to reduce the noise-inducing currents due to generation-recombination processes and diffusion currents. The technological procedure was further improved by using alkali sulfur passivation that suppresses surface leakage currents along the mesa edges. As a first result, the room temperature detectivity D* of the InAsSb photodiode, extracted from measurements, is comparable to the commercial HgCdTe device with a detectivity equals to 1 × 10 10 cm Hz 1/2 W -1 at about 3.5 μm.

Published
2005

36. Antioxidant properties of wild and domesticated Opuntia species. Potential interest in atherosclerosis

Author

Anne Nègre-Salvayre, A.P. Barba de la Rosa, Françoise Guéraud, Michel Rossignol, M.S. Santos, Robert Salvayre, Corinne Bernis, UMR 1048, Institut National de la Santé et de la Recherche Médicale (INSERM), Instituto Potosino de Investigación Cientifica y Tecnológica (IPICYT), Universidad Autonoma de San Luis Potosi [México] (UASLP), Prévention et promotion de la cancérogénèse par les aliments (ToxAlim-PPCA), ToxAlim (ToxAlim), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Ecole Nationale Vétérinaire de Toulouse (ENVT), Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Ecole d'Ingénieurs de Purpan (INPT - EI Purpan), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National de la Recherche Agronomique (INRA)-Université Toulouse III - Paul Sabatier (UT3), and Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National de la Recherche Agronomique (INRA)

Subjects
[SDV.OT]Life Sciences [q-bio]/Other [q-bio.OT], Antioxidant, Physiology (medical), medicine.medical_treatment, Botany, medicine, 15. Life on land, Biology, Domestication, Biochemistry, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2012

37. Antimonide-based superlattice infrared barrier photodetectors

Author

Jean-Philippe Perez, F. de Anda, Rodolphe Alchaar, Ulisses Zavala-Moran, Philippe Christol, Jean Rodriguez, Maxime Bouschet, V. Compean, Institut d’Electronique et des Systèmes (IES), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Composants à Nanostructure pour le moyen infrarouge (NANOMIR), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Universidad Autonoma de San Luis Potosi [México] (UASLP), and LYNRED (Veurey-Voroize)

Subjects
Materials science, Infrared, business.industry, Superlattice, Antimonide, Photodetector, Optoelectronics, [SPI.NANO]Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics, business, ComputingMilieux_MISCELLANEOUS, [SPI.TRON]Engineering Sciences [physics]/Electronics
Abstract

International audience

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