Institution
University of Bordeaux
Education•Bordeaux, France•
About: University of Bordeaux is a education organization based out in Bordeaux, France. It is known for research contribution in the topics: Population & Laser. The organization has 28811 authors who have published 55536 publications receiving 1619635 citations. The organization is also known as: UB.
Topics: Population, Laser, Context (language use), Raman spectroscopy, Medicine
Papers published on a yearly basis
Papers
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TL;DR: Several recently developed detection techniques opened studies of individual metal nanoparticles (1-100 nm in diameter) in the optical far field hold great potential for nanoscience and for single-molecule labelling in biological assays and live cells.
Abstract: Several recently developed detection techniques opened studies of individual metal nanoparticles (1-100 nm in diameter) in the optical far field. Eliminating averaging over the broad size and shape distributions produced by even the best of current synthesis methods, these studies hold great promise for gaining a deeper insight into many of the properties of metal nanoparticles, notably electronic and vibrational relaxation. All methods are based on detection of a scattered wave emitted either by the particle itself, or by its close environment. Direct absorption and interference techniques rely on the particle's scattering and have similar limits in signal-to-noise ratio. The photothermal method uses a photo-induced change in the refractive index of the environment as an additional step to scatter a wave with a different wavelength. This leads to a considerable improvement in signal-to-background ratio, and thus to a much higher sensitivity. We briefly discuss and compare these various techniques, review the new results they generated so far, and conclude on their great potential for nanoscience and for single-molecule labelling in biological assays and live cells.
319 citations
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26 Aug 1996TL;DR: It is shown that every formula of MSOL which does not distinguish between bisimilar models is equivalent to a formula of the propositional Μ-calculus, which implies that every logic over transition systems invariant under bisimulation and translatable into MSOL can be also translated into the Μ -calculus.
Abstract: Monadic second order logic (MSOL) over transition systems is considered. It is shown that every formula of MSOL which does not distinguish between bisimilar models is equivalent to a formula of the propositional Μ-calculus. This expressive completeness result implies that every logic over transition systems invariant under bisimulation and translatable into MSOL can be also translated into the Μ-calculus. This gives a precise meaning to the statement that most propositional logics of programs can be translated into the Μ-calculus.
319 citations
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TL;DR: In this article, the authors analyzed 50 months of Fermi Large Area Telescope (LAT) data between 100 MeV and 500 GeV above 10 deg in Galactic latitude to derive the spectrum and morphology of two large structures in the gamma-ray sky extending to 55 deg below the Galactic center.
Abstract: The Fermi bubbles are two large structures in the gamma-ray sky extending to 55 deg above and below the Galactic center. We analyze 50 months of Fermi Large Area Telescope data between 100 MeV and 500 GeV above 10 deg in Galactic latitude to derive the spectrum and morphology of the Fermi bubbles. We thoroughly explore the systematic uncertainties that arise when modeling the Galactic diffuse emission through two separate approaches. The gamma-ray spectrum is well described by either a log parabola or a power law with an exponential cutoff. We exclude a simple power law with more than 7 sigma significance. The power law with an exponential cutoff has an index of 1.90+/-0.2 and a cutoff energy of 110+/- 50 GeV. We find that the gamma-ray luminosity of the bubbles is 4.4(+)2.4(-0.9 ) 10(exp 37) erg s-1. We confirm a significant enhancement of gamma-ray emission in the south-eastern part of the bubbles, but we do not find significant evidence for a jet. No significant variation of the spectrum across the bubbles is detected. The width of the boundary of the bubbles is estimated to be 3.4(+)3.7(-)2.6 deg. Both inverse Compton (IC) models and hadronic models including IC emission from secondary leptons t the gamma-ray data well. In the IC scenario, the synchrotron emission from the same population of electrons can also explain the WMAP and Planck microwave haze with a magnetic field between 5 and 20 micro-G.
318 citations
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TL;DR: A database of census counts of organic-walled dinoflagellate cyst (dinocyst) assemblages has been developed from the analyses of surface sediment samples collected at middle to high latitudes of the Northern Hemisphere after standardisation of taxonomy and laboratory procedures as discussed by the authors.
318 citations
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TL;DR: The results indicate that sustained NMDA-receptor blocking could be a fruitful therapy for improving postoperative morphine effectiveness and that sustained ketamine pretreatment had no analgesic effect per se at the dose used herein.
Abstract: Perioperative opioids increase postoperative pain and morphine requirement, suggesting acute opioid tolerance. Furthermore, opioids elicit N-methyl-d-aspartate (NMDA)-dependent pain hypersensitivity. We investigated postfentanyl morphine analgesic effects and the consequences of NMDA-receptor antago
318 citations
Authors
Showing all 28995 results
Name | H-index | Papers | Citations |
---|---|---|---|
Nicholas G. Martin | 192 | 1770 | 161952 |
George F. Koob | 171 | 935 | 112521 |
Daniel J. Jacob | 162 | 656 | 76530 |
Arthur W. Toga | 159 | 1184 | 109343 |
James M. Tour | 143 | 859 | 91364 |
Floyd E. Bloom | 139 | 616 | 72641 |
Herbert Y. Meltzer | 137 | 1148 | 81371 |
Jean-Marie Tarascon | 136 | 853 | 137673 |
Stanley Nattel | 132 | 778 | 65700 |
Michel Haïssaguerre | 117 | 757 | 62284 |
Liquan Chen | 111 | 689 | 44229 |
Marion Leboyer | 110 | 773 | 50767 |
Jean-François Dartigues | 106 | 631 | 46682 |
Alexa S. Beiser | 106 | 366 | 47457 |
Robert Dantzer | 105 | 497 | 46554 |