Scattering of Glueballs and Mesons in Compact QEDQED in 2+12+1 Dimensions

We study glueball and meson scattering in compact $QED_{2+1}$ gauge theory in a Hamiltonian formulation and on a momentum lattice. We compute ground state energy and mass, and introduce a compact lattice momentum operator for the computation of dispersion relations. Using a non-perturbative time-dependent method we compute scattering cross sections for glueballs and mesons. We compare our results with strong coupling perturbation theory.Comment: figures not included (hard copy only), LAVAL-PHY-94-05, PARKS-PHY-94-0

Nouvelle technique de récolte du sperme chez le Taureau pour l’Insémination artificielle

Brière J. Nouvelle technique de récolte du sperme chez le Taureau pour l’insémination artificielle. In: Bulletin de l'Académie Vétérinaire de France tome 102 n°4, 1949. pp. 195-196

Construction d'indicateurs synthétiques à partir des données de surveillance épidémiologique des TMS

Introduction : Un programme de surveillance épidémiologique, mis en oeuvre depuis 2002 dans la région des Pays de la Loire, a parmi ses objectifs d\u27estimer l\u27incidence et la prévalence des TMS dans la population générale et celle des travailleurs, d\u27évaluer les niveaux d\u27exposition aux facteurs de risque professionnels et la proportion de cas attribuables au travail, selon le sexe, l\u27âge et les caractéristiques professionnelles. Ce programme a largement contribué à mieux décrire la morbidité liée aux TMS, description jusqu\u27alors essentiellement basée sur les statistiques de reconnaissance en maladie professionnelle. Des travaux sont engagés pour construire des indicateurs synthétiques, couvrant les aspects suivants : impact sur la santé (fréquence des TMS, fractions de risque attribuables au travail) ; exposition aux facteurs de risque ; réparation (reconnaissance en maladie professionnelle, indemnisation). Ces indicateurs se placent au coeur d\u27une réfl exion sur la manière dont on peut synthétiser de façon compréhensible et fi able les résultats issus de l\u27épidémiologie afin que les acteurs de la prévention des risques professionnels (pouvoirs publics, partenaires sociaux, professionnels de la santé au travail, entreprises et employeurs, caisses d\u27assurance maladie...) puissent se les approprier. Méthode : Les fractions de risque de syndrome du canal carpien (SCC) attribuables au travail pour une catégorie professionnelle représentent la proportion des cas observés dans l\u27ensemble de la population qui serait évitée si cette catégorie professionnelle ne présentait pas un excès de risque par rapport aux autres. Leurs fourchettes ont été estimées pour la France métropolitaine en utilisant les intervalles de confiance des risques relatifs observés dans l\u27étude conduite dans le Maine-et-Loire portant sur 1 168 patients pour lesquels un diagnostic électromyographique de SCC a été porté entre 2002 et 2004. Les indicateurs d\u27exposition au risque de TMS sont issus, quant à eux, des données d\u27un échantillon de 3 710 salariés tirés au sort par les 83 médecins du travail des Pays de la Loire participant au programme de surveillance. Des scores ont été construits pour décrire la fréquence des expositions à plusieurs facteurs de risque, biomécaniques et psychosociaux, de TMS. Résultats : À titre d\u27exemple, quelques résultats sont présentés dans ce résumé. Les fractions de risque attribuable au travail en France sont pour le SCC comprises entre 16 % et 33 % pour les femmes employées, entre 8 % et 16 % pour les ouvrières, entre 30 % et 56 % pour les ouvriers. Parmi les salariés de la région des Pays de la Loire, 24 % des femmes et 19 % des hommes sont exposés à la fois à au moins une posture extrême plus de 2 heures par jour et à une répétitivité élevée plus de 4 heures par jour, et 20 % des femmes et 17 % des hommes sont exposés à la fois à ces deux facteurs et à un travail en force plus de 2 heures par jour. Discussion : Ces indicateurs peuvent aider les entreprises à prioriser, mettre en oeuvre et évaluer les actions de prévention. Pour améliorer leur fiabilité et les rendre plus utiles, il est nécessaire de vérifi er avec d\u27autres données la validité des estimations utilisées, de produire ces indicateurs à un niveau plus détaillé des secteurs économiques et des professions, de les produire périodiquement, d\u27en produire pour d\u27autres TMS tels que le syndrome de la coiffe des rotateurs et la hernie discale lombaire qui, comme le SCC, peuvent être considérés comme des traceurs épidémiologiques des TMS du membre supérieur et des lombalgies

Des indicateurs en santé travail - Les troubles musculo-squelettiques du membre supérieur en France

France has sought to develop a series of indicators intended to monitor health trends at the national level. Since its creation in 1998, the Department of Occupational Health (DST) of the French Institute of Public Health Surveillance (InVS) has worked to develop monitoring programs, with the goal of producing such data regularly and thus improving our knowledge of occupational health risks. The data sources have expanded over time. In 2009, the DST established a program for the regular production of indicators intended to report the national workplace health situation and its trends over time. These indicators come from various sources and will be published regularly on the InVS website: www.invs.sante.fr. This third report covers musculoskeletal diseases of the upper limbs. This document summarizes data about their frequency in terms of prevalence and incidence, as well as about the frequency of exposures to the principal known risk factors, according to sex, age, occupational categories, and broad activity sectors. It also provides information about the proportion of these musculoskeletal diseases that are attributable to work, according to occupational categories and broad activity sectors, and about the scale of their under-reporting generally and as compensable occupational diseases. Finally, some questions enable us to put the results presented into perspective

Self-organization with equilibration: a model for the intermediate phase in rigidity percolation

Recent experimental results for covalent glasses suggest the existence of an intermediate phase attributed to the self-organization of the glass network resulting from the tendency to minimize its internal stress. However, the exact nature of this experimentally measured phase remains unclear. We modify a previously proposed model of self-organization by generating a uniform sampling of stress-free networks. In our model, studied on a diluted triangular lattice, an unusual intermediate phase appears, in which both rigid and floppy networks have a chance to occur, a result also observed in a related model on a Bethe lattice by Barre et al. [Phys. Rev. Lett. 94, 208701 (2005)]. Our results for the bond-configurational entropy of self-organized networks, which turns out to be only about 2% lower than that of random networks, suggest that a self-organized intermediate phase could be common in systems near the rigidity percolation threshold.Comment: 9 pages, 6 figure

Self-organized criticality in the intermediate phase of rigidity percolation

Experimental results for covalent glasses have highlighted the existence of a new self-organized phase due to the tendency of glass networks to minimize internal stress. Recently, we have shown that an equilibrated self-organized two-dimensional lattice-based model also possesses an intermediate phase in which a percolating rigid cluster exists with a probability between zero and one, depending on the average coordination of the network. In this paper, we study the properties of this intermediate phase in more detail. We find that microscopic perturbations, such as the addition or removal of a single bond, can affect the rigidity of macroscopic regions of the network, in particular, creating or destroying percolation. This, together with a power-law distribution of rigid cluster sizes, suggests that the system is maintained in a critical state on the rigid/floppy boundary throughout the intermediate phase, a behavior similar to self-organized criticality, but, remarkably, in a thermodynamically equilibrated state. The distinction between percolating and non-percolating networks appears physically meaningless, even though the percolating cluster, when it exists, takes up a finite fraction of the network. We point out both similarities and differences between the intermediate phase and the critical point of ordinary percolation models without self-organization. Our results are consistent with an interpretation of recent experiments on the pressure dependence of Raman frequencies in chalcogenide glasses in terms of network homogeneity.Comment: 20 pages, 18 figure

Diffuse large B-cell lymphoma of Waldeyer's ring has distinct clinicopathologic features: a GELA study

Background Diffuse large B-cell lymphomas (DLBCLs) arising in specific extranodal sites have peculiar clinicopathologic features. Patients and methods We analyzed a cohort of 187 primary Waldeyer's ring (WR) DLBCLs retrieved from GELA protocols using anthracyclin-based polychemotherapy. Results Most patients (92%) had stage I-II disease. A germinal center B-cell-like (GCB) immunophenotype was observed in 61%, and BCL2 expression in 55%, of WR DLBCLs. BCL2, BCL6, IRF4 and MYC breakpoints were observed in, respectively, 3 of 42 (7%), 9 of 36 (25%), 2 of 26 (8%) and 4 of 40 (10%) contributive cases. A variable follicular pattern was evidenced in 30 of 68 (44%) large biopsy specimens. The 5-year progression-free survival (PFS) and the overall survival (OS) of 153 WR DLBCL patients with survival information were 69.5% and 77.8%, respectively. The GCB immunophenotype correlated with a better OS (P=0.0015), while BCL2 expression predicted a worse OS (P=0.037), an effect overcome by the GCB/non-GCB classification. Compared with matched nodal DLBCLs, WR DLBCLs with no age-adjusted international prognostic index factor disclosed a better 5-year PFS rate (77.5% versus 70.7%; P=0.03). Conclusions WR DLBCLs display distinct clinicopathologic features compared with conventional DLBCLs, with usual localized-stage disease, common follicular features and a high frequency of GCB immunophenotype contrasting with a low rate of BCL2 rearrangements. In addition, they seem to be associated with a better outcome than their nodal counterpar

Phase III study of ACVBP versus ACVBP plus rituximab for patients with localized low-risk diffuse large B-cell lymphoma (LNH03-1B)

Background The superiority of a chemotherapy with doxorubicin, cyclophosphamide, vindesine, bleomycin and prednisone (ACVBP) in comparison with cyclophosphamide, doxorubicin, vincristin and prednisone plus radiotherapy for young patients with localized diffuse large B-cell lymphoma (DLBCL) was previously demonstrated. We report the results of a trial which evaluates the role of rituximab combined with ACVBP (R-ACVBP) in these patients. Patients and methods Untreated patients younger than 66 years with stage I or II DLBCL and no adverse prognostic factors of the age-adjusted International Prognostic Index were randomly assigned to receive three cycles of ACVBP plus sequential consolidation with or without the addition of four infusions of rituximab. Results A total of 223 patients were randomly allocated to the study, 110 in the R-ACVBP group and 113 in the ACVBP group. After a median follow-up of 43 months, our 3-year estimate of event-free survival was 93% in the R-ACVBP group and 82% in the ACVBP group (P = 0.0487). Three-year estimate of progression-free survival was increased in the R-ACVBP group (95% versus 83%, P = 0.0205). Overall survival did not differ between the two groups with a 3-year estimates of 98% and 97%, respectively (P = 0.686). Conclusion In young patients with low-risk localized DLBCL, rituximab combined with three cycles of ACVBP plus consolidation is significantly superior to ACVBP plus consolidation alon

Results of the BiPo-1 prototype for radiopurity measurements for the SuperNEMO double beta decay source foils

The development of BiPo detectors is dedicated to the measurement of extremely high radiopurity in $^{208}$Tl and $^{214}$Bi for the SuperNEMO double beta decay source foils. A modular prototype, called BiPo-1, with 0.8 $m^2$ of sensitive surface area, has been running in the Modane Underground Laboratory since February, 2008. The goal of BiPo-1 is to measure the different components of the background and in particular the surface radiopurity of the plastic scintillators that make up the detector. The first phase of data collection has been dedicated to the measurement of the radiopurity in $^{208}$Tl. After more than one year of background measurement, a surface activity of the scintillators of $\mathcal{A}$($^{208}$Tl) $=$ 1.5 $\mu$Bq/m$^2$ is reported here. Given this level of background, a larger BiPo detector having 12 m$^2$ of active surface area, is able to qualify the radiopurity of the SuperNEMO selenium double beta decay foils with the required sensitivity of $\mathcal{A}$($^{208}$Tl) $<$ 2 $\mu$Bq/kg (90% C.L.) with a six month measurement.Comment: 24 pages, submitted to N.I.M.

The eSMAF: a software for the assessment and follow-up of functional autonomy in geriatrics

BACKGROUND: Functional status or disability forms the core of most assessment instruments used to identify mix and level of resources and services needed by older adults who possess common characteristics. The Functional Autonomy Measurement System (SMAF) is a 29-item scale measuring functional ability in five different areas. It has been recommended for use for home care, for allocation of chronic beds, for developing care plans in institutional settings and for epidemiological and evaluative studies. The SMAF can also be used with a case-mix classification system (Iso-SMAF) to allocate resources based on patients' functional autonomy characteristics. The objective of this project was to develop a software version of the SMAF to facilitate the evaluation of the functional status of older adults in health services research and to optimize the clinical decision-making process. RESULTS: The eSMAF was developed over an 24-month period using a modified waterfall software engineering process. Requirements and functional specifications were determined using focus groups of stakeholders. Different versions of the software were iteratively field-tested in clinical and research environments and software adaptations made accordingly. User documentation and online help were created to assist the deployment of the software. The software is available in French or English versions under a 30-day unregistered demonstration license or a free restricted registered academic license. It can be used locally on a Windows-based PC or over a network to input SMAF data into a database, search and aggregate client data according to clinical and/or administrative criteria, and generate summary or detailed reports of selected data sets for print or export to another database. CONCLUSION: In the last year, the software has been successfully deployed in the clinical workflow of different institutions in research and clinical applications. The software performed relatively well in terms of stability and performance. Barriers to implementation included antiquated computer hardware, low computer literacy and access to IT support. Key factors for the deployment of the software included standardization of the workflow, user training and support