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Sergi Vela, Martin Verot, Emmanuel Fromager, Vincent Robert
The present paper reports the application of a computational framework, based on the quantum master equation, the Fermi's golden Rule, and conventional wavefunction-based methods, to describe electron transport through a spin crossover molecular junction (Fe(bapbpy) (NCS)2, 1, bapbpy = N-(6-(6-(Pyridin-2-ylamino)pyridin-2-yl)pyridin-2-yl)-pyridin-2-amine). This scheme is an alternative to the standard approaches based on the relative position and nature of the frontier orbitals, as it evaluates the junction's Green's function by means of accurate state energies and wavefunctions...
February 14, 2017: Journal of Chemical Physics
B Fromage, M Hatti
UNLABELLED: In palliative care, people with advanced or terminal phase cancer represent a significant proportion of patients. Persuaded that the pain and suffering they experience will never disappear from their daily life, patients are exposed to successive fracture triggered by psychosocial/physical factors. Furthermore, the difficulty in palliative care is that the pain is also a subjective phenomenon. However, the only information available to indicate pain remains the quantitative assessment of the patient or the observation of his/her behaviour...
December 2015: L'Encéphale
A Taupin, D Labbé, E Babin, G Fromager
INTRODUCTION: Recovering a certain degree of mimicry after sacrifice of the facial nerve is a clinically recognized finding. The authors report a case of hemifacial reanimation suggesting a phenomenon of neurotization from muscle-to-nerve. CLINICAL CASE: A woman benefited from a parotidectomy with sacrifice of the left facial nerve indicated for recurrent tumor in the gland. The distal branches of the facial nerve, isolated at the time of resection, were buried in the masseter muscle underneath...
December 2016: Annales de Chirurgie Plastique et Esthétique
G La Ruche, Y Le Strat, M Fromage, B Berçot, A Goubard, B de Barbeyrac, P Sednaoui, E Cambau, F Lot
Surveillance of sexually transmitted diseases in France is based on voluntary networks of laboratories and clinicians. Despite the importance of incidence data in improving knowledge about the national context and in international comparisons, such data were not previously available. During nationwide quality control of laboratories, mandatory for all laboratories, we conducted a survey in June 2013 to estimate the incidence rates of gonococcal and chlamydial infections for 2012 and to estimate the proportion of diagnoses performed (coverage) by the country's two laboratory-based sentinel networks for these diseases...
2015: Euro Surveillance: Bulletin Européen sur les Maladies Transmissibles, European Communicable Disease Bulletin
Julie Pilliod, Sébastien Moutton, Julie Lavie, Elise Maurat, Christophe Hubert, Nadège Bellance, Mathieu Anheim, Sylvie Forlani, Fanny Mochel, Karine N'Guyen, Christel Thauvin-Robinet, Christophe Verny, Dan Milea, Gaëtan Lesca, Michel Koenig, Diana Rodriguez, Nada Houcinat, Julien Van-Gils, Christelle M Durand, Agnès Guichet, Magalie Barth, Dominique Bonneau, Philippe Convers, Elisabeth Maillart, Lucie Guyant-Marechal, Didier Hannequin, Guillaume Fromager, Alexandra Afenjar, Sandra Chantot-Bastaraud, Stéphanie Valence, Perrine Charles, Patrick Berquin, Caroline Rooryck, Julie Bouron, Alexis Brice, Didier Lacombe, Rodrigue Rossignol, Giovanni Stevanin, Giovanni Benard, Lydie Burglen, Alexandra Durr, Cyril Goizet, Isabelle Coupry
OBJECTIVE: Autosomal recessive spastic ataxia of Charlevoix-Saguenay (ARSACS) is caused by mutations in the SACS gene. SACS encodes sacsin, a protein whose function remains unknown, despite the description of numerous protein domains and the recent focus on its potential role in the regulation of mitochondrial physiology. This study aimed to identify new mutations in a large population of ataxic patients and to functionally analyze their cellular effects in the mitochondrial compartment...
December 2015: Annals of Neurology
Olivier Allais, Fabrice Etilé, Sébastien Lecocq
The public-health community views mandatory Front-of-Pack (FOP) nutrition labels and nutritional taxes as promising tools to control the growth of food-related chronic diseases. This paper uses household scanner data to propose an ex-ante evaluation and comparison of these two policy options for the fromage blanc and dessert yogurt market. In most markets, labelling is voluntary and firms display fat labels only on the FOP of low-fat products to target consumers who do not want to eat fat. We here separately identify consumer preferences for fat and for FOP fat labels by exploiting an exogenous difference in legal labelling requirements between these two product categories...
September 2015: Journal of Health Economics
Abdelhalim Bencheikh, Michael Fromager, Kamel Aït Ameur
In recent years, considerable attention has been devoted to laser beams with specific intensity profile, i.e., non-Gaussian. In this work, we present a novel technique to generate high-radial-order Laguerre-Gaussian beams LG(p0) based on the use of a binary phase diffractive optical element (BPDOE). The latter is a phase plate made up of annular zones introducing alternatively a phase shift equal to 0 or π modeled on positions which do not coincide with the position of the zeros of the desired LG(p0) beam...
July 20, 2014: Applied Optics
Thomas Godin, Michael Fromager, Emmanuel Cagniot, Marc Brunel, Kamel Aït-Ameur
We propose a new device that is able to perform highly sensitive wavefront measurements based on the use of continuous position sensitive detectors and without resorting to any reconstruction process. We demonstrate experimentally its ability to measure small wavefront distortions through the characterization of pump-induced refractive index changes in laser material. In addition, it is shown using computer-generated holograms that this device can detect phase discontinuities as well as improve the quality of sharp phase variations measurements...
December 1, 2013: Applied Optics
Erik Donovan Hedegård, Frank Heiden, Stefan Knecht, Emmanuel Fromager, Hans Jørgen Aagaard Jensen
Charge transfer excitations can be described within Time-Dependent Density Functional Theory (TD-DFT), not only by means of the Coulomb Attenuated Method (CAM) but also with a combination of wave function theory and TD-DFT based on range separation. The latter approach enables a rigorous formulation of multi-determinantal TD-DFT schemes where excitation classes, which are absent in conventional TD-DFT spectra (like for example double excitations), can be addressed. This paper investigates the combination of both the long-range Multi-Configuration Self-Consistent Field (MCSCF) and Second Order Polarization Propagator Approximation (SOPPA) ansätze with a short-range DFT (srDFT) description...
November 14, 2013: Journal of Chemical Physics
Alexandrina Stoyanova, Andrew M Teale, Julien Toulouse, Trygve Helgaker, Emmanuel Fromager
The alternative separation of exchange and correlation energies proposed by Toulouse et al. [Theor. Chem. Acc. 114, 305 (2005)] is explored in the context of multi-configuration range-separated density-functional theory. The new decomposition of the short-range exchange-correlation energy relies on the auxiliary long-range interacting wavefunction rather than the Kohn-Sham (KS) determinant. The advantage, relative to the traditional KS decomposition, is that the wavefunction part of the energy is now computed with the regular (fully interacting) Hamiltonian...
October 7, 2013: Journal of Chemical Physics
Gaël Nicolas, Cyril Pottier, Camille Charbonnier, Lucie Guyant-Maréchal, Isabelle Le Ber, Jérémie Pariente, Pierre Labauge, Xavier Ayrignac, Luc Defebvre, David Maltête, Olivier Martinaud, Romain Lefaucheur, Olivier Guillin, David Wallon, Boris Chaumette, Philippe Rondepierre, Nathalie Derache, Guillaume Fromager, Stéphane Schaeffer, Pierre Krystkowiak, Christophe Verny, Snejana Jurici, Mathilde Sauvée, Marc Vérin, Thibaud Lebouvier, Olivier Rouaud, Christel Thauvin-Robinet, Stéphane Rousseau, Anne Rovelet-Lecrux, Thierry Frebourg, Dominique Campion, Didier Hannequin
Idiopathic basal ganglia calcification is characterized by mineral deposits in the brain, an autosomal dominant pattern of inheritance in most cases and genetic heterogeneity. The first causal genes, SLC20A2 and PDGFRB, have recently been reported. Diagnosing idiopathic basal ganglia calcification necessitates the exclusion of other causes, including calcification related to normal ageing, for which no normative data exist. Our objectives were to diagnose accurately and then describe the clinical and radiological characteristics of idiopathic basal ganglia calcification...
November 2013: Brain: a Journal of Neurology
Boualem Boubaha, Darryl Naidoo, Thomas Godin, Michael Fromager, Andrew Forbes, Kamel Aït-Ameur
In this paper, we explore theoretically and experimentally the laser beam shaping ability resulting from the coaxial superposition of two coherent Gaussian beams (GBs). This technique is classified under interferometric laser beam shaping techniques contrasting with the usual ones based on diffraction. The experimental setup does not involve the use of some two-wave interferometer but uses a spatial light modulator for the generation of the necessary interference term. This allows one to avoid the thermal drift occurring in interferometers and gives a total flexibility of the key parameter setting the beam transformation...
August 10, 2013: Applied Optics
C Borie-Swinburne, A Sola-Gazagnes, C Gonfroy-Leymarie, J Boillot, C Boitard, E Larger
BACKGROUND: In flexible insulin therapy, determination of the prandial insulin dose only takes into account the carbohydrate content of the evening meal, and not the protein content. Protein can, however, contribute to gluconeogenesis. We compared the glycaemic effect of a standard evening meal with that of a test evening meal enriched in protein. METHODS: The present study was conducted in 28 C-peptide negative patients with type 1 diabetes. Two evening meals that were similar in content, except that one was enriched by the addition of 300 g of 0%-fat fromage frais, were taken on two consecutive days...
December 2013: Journal of Human Nutrition and Dietetics: the Official Journal of the British Dietetic Association
Emmanuel Fromager, Stefan Knecht, Hans Jørgen Aa Jensen
Multi-configuration range-separated density-functional theory is extended to the time-dependent regime. An exact variational formulation is derived. The approximation, which consists in combining a long-range Multi-Configuration-Self-Consistent Field (MCSCF) treatment with an adiabatic short-range density-functional (DFT) description, is then considered. The resulting time-dependent multi-configuration short-range DFT (TD-MC-srDFT) model is applied to the calculation of singlet excitation energies in H2, Be, and ferrocene, considering both short-range local density (srLDA) and generalized gradient (srGGA) approximations...
February 28, 2013: Journal of Chemical Physics
Luciana de Souza Menezes, Jefferson Novaes, José Fernandes-Filho
OBJECTIVE: Identifying and comparinge the physical qualities of Brazilian athletes and practitioners of rhythmic gymnastics. METHODS: 125 Brazilian athletes and rhythmic gymnasts practitioners of Rhythmic Gymnastics fromaged 7 to 25 years- old were evaluated. They were divided into the following categories: Different competitive levels (international, national and regional) and pre- and post- menarche practitioners. The protocols used were: Burpee (coordination), Sargent jJump test, and gGoniometry (flexibility)...
March 2012: Revista de Salud Pública
Emmanuel Fromager
A two-parameter extension of the density-scaled double hybrid approach of Sharkas et al. [J. Chem. Phys. 134, 064113 (2011)] is presented. It is based on the explicit treatment of a fraction of multideterminantal exact exchange. The connection with conventional double hybrids is made when neglecting density scaling in the correlation functional as well as second-order corrections to the density. In this context, the fraction a(c) of second-order Møller-Plesset (MP2) correlation energy is not necessarily equal to the square of the fraction a(x) of Hartree-Fock exchange...
December 28, 2011: Journal of Chemical Physics
Alexia Papageorgiou, Susan Miles, Michelle Fromage, Julie Kemmy, Sam J Leinster
BACKGROUND: Good communication is a crucial element of good clinical care, and it is important to provide appropriate consultation skills teaching in undergraduate medical training to ensure that doctors have the necessary skills to communicate effectively with patients and other key stakeholders. This article aims to provide research evidence of the acceptability of a longitudinal consultation skills strand in an undergraduate medical course, as assessed by a cross-sectional evaluation of students' perceptions of their teaching and learning experiences...
August 8, 2011: BMC Medical Education
Emmanuel Cagniot, Michael Fromager, Thomas Godin, Nicolas Passilly, Kamel Aït-Ameur
A promising technique has been proposed recently [Opt. Commun. 284, 1331 (2011), Opt. Commun. 284, 4107 (2011)] for breaking the diffraction limit of light. This technique consists of transforming a symmetrical Laguerre-Gaussian LG(p)⁰ beam into a near-Gaussian beam at the focal plane of a thin converging lens thanks to a binary diffractive optical element (DOE) having a transmittance alternatively equal to -1 or +1, transversely. The effect of the DOE is to convert the alternately out-of-phase rings of the LG(p)⁰ beam into a unified phase front...
August 1, 2011: Journal of the Optical Society of America. A, Optics, Image Science, and Vision
Emmanuel Fromager, Hans Jørgen Aa Jensen
Range-separated density-functional theory combines wave function theory for the long-range part of the two-electron interaction with density-functional theory for the short-range part. When describing the long-range interaction with non-variational methods, such as perturbation or coupled-cluster theories, self-consistency effects are introduced in the density functional part, which for an exact solution requires iterations. They are generally assumed to be small but no detailed study has been performed so far...
July 21, 2011: Journal of Chemical Physics
Thomas Godin, Michael Fromager, Emmanuel Cagniot, Richard Moncorgé, Kamel Aït-Ameur
A new and efficient technique for measuring weak optical nonlinearities is reported. Like Z scan, its implementation is basic, both experimentally and theoretically, but leads to an improved sensitivity of λ/5.10⁴, which represents, to date, one of the highest observed enhancements. With this technique, which is based upon the use of a position sensitive detector, nonlinear properties are deduced by monitoring the barycentric position of a truncated pump-probe laser beam as the sample is moved along the optical axis...
April 15, 2011: Optics Letters
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