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The structural modifications of the infrared (IR) bands induced by the CuO and MnO2 addition in the recycled Pb-PbO2 host matrix are due to the bending modes of Pb-O-Pb linkages, the decrease of in...

Predictions for the Higgs masses are a distinctive feature of supersymmetric extensions of the Standard Model, where they play a crucial role in constraining the parameter space. The discovery of a Higgs boson and the remarkably precise measurement of its mass at the LHC have spurred new efforts aimed at improving the accuracy of the theoretical predictions for the Higgs masses in supersymmetric models. The “Precision SUSY Higgs Mass Calculation Initiative” (KUTS) was launched in 2014 to provide a forum for discussions between the different groups involved in these efforts. This report aims to present a comprehensive overview of the current status of Higgs-mass calculations in supersymmetric models, to document the many advances that were achieved in recent years and were discussed during the KUTS meetings, and to outline the prospects for future improvements in these calculations., Funded by SCOAP3., The work of S.H. has been supported in part by the MEINCOP (Spain) under contract FPA2016-78022-P and under contract PID2019-110058GB-C21, in part by the Spanish Agencia Estatal de Investigación (AEI), in part by the EU Fondo Europeo de Desarrollo Regional (FEDER) through the project FPA2016-78645-P, in part by the “Spanish Red Consolider MultiDark” FPA2017-90566-REDC, and in part by the AEI through the grant IFT Centro de Excelencia Severo Ochoa SEV-2016-0597.

In this paper we compute the $$ \mathcal{O}\left({\alpha}_s{\alpha}_t\right) $$ threshold corrections to the running strong coupling constant, the top-Yukawa coupling and the top-quark mass within the MSSM. These parameters present a non-decoupling behaviour with the supersymmetry scale M SUSY . Our numerical analysis shows that the mixed QCD-Yukawa corrections can amount to few GeV for the running top-quark mass and range at the percent level for the top-Yukawa coupling.

In this talk we report on two recent high precision calculations within the minimal supersymmetric extension of the Standard Model. In the first part of the talk we present the computation of the light CP-even Higgs boson mass with three-loop accuracy, taking into account the next-to-next-to-leading order effects from supersymmetric Quantum Chromodynamics. Furthermore, we discuss a consistent evolution of the strong coupling constant α s from M Z to the GUT scale, involving three-loop running and two-loop decoupling. For both observables the numerical results amount to corrections of the same order as the current experimental accuracy or that expected at the CERN Large Hadron Collider (LHC).

We compute the relation between the pole quark mass and the minimally subtracted quark mass in the framework of QCD applying dimensional reduction as a regularization scheme. Special emphasis is put on the evanescent couplings and the renormalization of the epsilon-scalar mass. As a by-product we obtain the three-loop on-shell renormalization constants Zm(OS) and Z2(OS) in dimensional regularization and thus provide the first independent check of the analytical results computed several years ago., Comment: 22 pages

In this paper we propose a method to compute the running top-Yukawa coupling in supersymmetric models with heavy mass spectrum based on the “running” and “decoupling” procedure. In order to enable this approach we compute the two-loop SUSY-QCD radiative corrections required in the decoupling process. The method has the advantage that large logarithmic corrections are automatically resummed through the Renormalization Group Equations. As phenomenological application we study the effects of this approach on the SUSY-QCD corrections to the prediction of the lightest Higgs boson mass at three-loop accuracy. We observe a significant reduction of the renormalization scale dependence as compared to the direct method, that is based on the conversion relation between the running and pole mass for the top quark. The effect of resummation of large logarithmic contributions consists in an increased prediction for the Higgs boson mass, an observation in agreement with the previous analyses.

We compute the two-loop corrections of O(alpha_s^2) to the Yukawa couplings in the framework of the Minimal Supersymmetric Standard Model (MSSM). The calculation is performed using the effective Lagrangian approach under the approximation of neglecting the Higgs boson mass with respect to the top quark, gluino and all squark flavour masses. As an application we derive the O(alpha_s^2) corrections to the partial decay width of the lightest Higgs boson to a bottom quark pair. We find that the two-loop corrections are sizable for large values of tan_beta and low CP-odd Higgs boson mass. With our calculation of the O(alpha_s^2) corrections the remaining theoretical uncertainties reduce below a few percent.

The light CP even Higgs boson mass, Mh, is calculated to three-loop accuracy within the Minimal Supersymmetric Standard Model (MSSM). The result is expressed in terms of DRbar parameters and implemented in the computer program H3m. The calculation is based on the proper approximations and their combination in various regions of the parameter space. The three-loop effects to Mh are typically of the order of a few hundred MeV and opposite in sign to the two-loop corrections. The remaining theory uncertainty due to higher order perturbative corrections is estimated to be less than 1 GeV., Comment: 39 pages, 13 figures. v2: minor changes, typos fixed

In this talk we report on the computation of the light CP‐even Higgs boson mass with three‐loop accuracy, taking into account the next‐to‐next‐to‐leading order effects from supersymmetric Quantum Chromodynamics. We find that the numerical results amount to corrections of the same order of magnitude as the experimental accuracy expected at the CERN Large Hadron Collider (LHC).

We compute the exact two‐loop matching coefficient for the bottom‐quark mass mb, within the Minimal Supersymmetric Standard Model (MSSM), taking into account O(αs2) contributions from the Supersymmetric Quantum Chromodynamics (SQCD). We find that the three‐loop order corrections to the running bottom‐quark mass exceed the uncertainty due to the current experimental accuracy. They can reach up to 30% from the tree‐level mb, for models with large values of tan β and relatively light SUSY mass scale.

Within the minimal supersymmetric extension of the Standard Model, the mass of the light CP-even Higgs boson is computed to three-loop accuracy, taking into account the next-to-next-to-leading order effects from supersymmetric Quantum Chromodynamics. We consider two different scenarios for the mass hierarchies of the supersymmetric spectrum. Our numerical results amount to corrections of about 500 MeV which is of the same order as the experimental accuracy expected at the CERN Large Hadron Collider (LHC)., Comment: 5 pages, quadratic logarithm in analytical results has changed, effect on numerics negligible, reference added

A consistent evolution of the strong coupling constant ${\ensuremath{\alpha}}_{s}$ from ${M}_{Z}$ to the grand unified theory (GUT) scale is presented, involving three-loop running and two-loop decoupling. The two-loop transition from the $\overline{\mathrm{MS}}$- to the $\overline{\mathrm{DR}}$-scheme is properly taken into account. In the second part of the paper, the bottom quark mass in the $\overline{\mathrm{DR}}$-scheme at the electroweak/supersymmetry (SUSY) scale is evaluated with four-loop accuracy. We find that the three-loop effects are comparable to the experimental uncertainty both for ${\ensuremath{\alpha}}_{s}$ and ${m}_{b}$.

Streptococcus pyogenes or group A streptococcus is an uncommon cause of bacterial meningitis. The purpose of this report is to describe two cases of Streptococcus pyogenes meningitis observed in Bangui, Central African Republic. The first case occurred in a 44-year-old woman who also presented pyodermitis. The second case involved a 34-year-old woman who also presented chronic middle ear infection and AIDS. Both strains of Streptococcus pyogenes were classified as biotype group 5 and showed resistance to tetracycline. They were also T-nontypable and of the emm 117 genotype and 117.1 subtype. Pulsed-field gel electrophoresis confirmed that both strains originated from the same clone.

Within the framework of QCD we compute renormalization constants for the strong coupling and the quark masses to four-loop order. We apply the DR-bar scheme and put special emphasis on the additional couplings which have to be taken into account. This concerns the epsilon-scalar--quark Yukawa coupling as well as the vertex containing four epsilon-scalars. For a supersymmetric Yang Mills theory, we find, in contrast to a previous claim, that the evanescent Yukawa coupling equals the strong coupling constant through three loops as required by supersymmetry., Comment: 15 pages, fixed typo in Eq. (18)

When relating the strong coupling ${\ensuremath{\alpha}}_{s}$, measured at the scale of the $Z$ boson mass, to its numerical value at some higher energy, for example, the scale of grand unification, it is important to include higher order corrections both in the running of ${\ensuremath{\alpha}}_{s}$ and the decoupling of the heavy particles. We compute the two-loop matching coefficients for ${\ensuremath{\alpha}}_{s}$ within the minimal supersymmetric standard model which are necessary for a consistent three-loop evolution of the strong coupling constant. Different scenarios for the hierarchy of the supersymmetric scales are considered and the numerical effects are discussed. We find that the three-loop effects can be as large as and sometimes even larger than the uncertainty induced by the current experimental accuracy of ${\ensuremath{\alpha}}_{s}({M}_{Z})$.

We calculate the cross section of J/psi plus prompt-photon inclusive production in gamma gamma collisions at next-to-leading order within the factorization formalism of nonrelativistic quantum chromodynamics (NRQCD) focusing on direct photoproduction. Apart from direct J/psi production, we also include the feed-down from directly-produced chi_{cJ} and psi' mesons. We discuss the analytical calculation, in particular the treatment of the various types of singularities and the NRQCD operator renormalization, in some detail. We present theoretical predictions for the future e^+e^- linear collider TESLA, taking into account both brems- and beamstrahlung., Comment: 31 pages, 9 figures

An outbreak of infection with vancomycin‐resistant Enterococcus faecium occurred at Hotel‐Dieu Hospital (Clermont‐Ferrand, France). A case‐control study was performed in the infectious diseases and hematology units of the hospital. Urinary catheter use (odds ratio [OR], 12 [95% confidence interval {CI}, 1.5‐90]; \documentclass{aastex} \usepackage{amsbsy} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{bm} \usepackage{mathrsfs} \usepackage{pifont} \usepackage{stmaryrd} \usepackage{textcomp} \usepackage{portland,xspace} \usepackage{amsmath,amsxtra} \usepackage[OT2,OT1]{fontenc} \newcommand\cyr{ \renewcommand\rmdefault{wncyr} \renewcommand\sfdefault{wncyss} \renewcommand\encodingdefault{OT2} \normalfont \selectfont} \DeclareTextFontCommand{\textcyr}{\cyr} \pagestyle{empty} \DeclareMathSizes{10}{9}{7}{6} \begin{document} \landscape $P< .02$ \end{document} ), prior exposure to a third‐generation cephalosporin (OR, 22 [95% CI, 3‐152]; \documentclass{aastex} \usepackage{amsbsy} \usepackage{amsfonts} \usep...

In this paper, we report on the calculation of the cross section of J/\Psi plus jet inclusive production in direct two-photon collisions at next-to-leading order within the factorization formalism of nonrelativistic quantum chromodynamics (NRQCD). Theoretical predictions for the future e^+e^- linear collider TESLA are also presented., Comment: 5 pages, 2 figures, talk given at the 7th DESY Workshop on Elementary Particle Theory: Loops and Legs in Quantum Field Theory, Zinnowitz, Germany, 25-30 April, 2004: added references for section 1

The need to rapidly identify streptococci responsible for acute infectious diseases has led to the development of agglutination techniques that are able to identify streptococcal group antigens (A, B, C, D, F, and G) directly from primoculture colonies on blood agar. The Prolex agglutination tests (Pro-Lab Diagnostics, Richmond Hill, Ontario, Canada), distributed in France by i2a, have been used for the determination of group antigens of 166 isolates of streptococci and enterococci previously identified in the National Reference Center for Streptococci. The results obtained with the Prolex reagents have permitted to correctly identify all pyogenic beta-hemolytic streptococci (23 Streptococcus pyogenes, 21 Streptococcus agalactiae, 33 Streptococcus dysgalactiae subsp. equisimilis including 6 group C and 27 group G, and 5 Streptococcus porcinus including 4 group B). Four differences between unexpected agglutinations (A or F) and species identifications have been obtained. These differences were observed for four non-hemolytic isolates of Streptococcus mutans, Streptococcus gordonii, Streptococcus infantarius, and Streptococcus suis. The anti-D reagent has been of value as a marker for isolates of enterococci. Thus, these results confirm the abilities of these agglutination tests for the grouping of beta-hemolytic streptococci. Moreover, the use of Prolex has the advantage to be rapid because of the non-enzymatic but chemical extraction of streptococcal antigens.

We calculate the cross section of J/psi plus jet inclusive production in gamma gamma collisions at next-to-leading order within the factorization formalism of nonrelativistic quantum chromodynamics (NRQCD) focusing on direct photoproduction. Apart from direct J/psi production, we also include the feed-down from directly-produced chi_{cJ} and psi' mesons. We discuss the analytical calculation, in particular the treatment of the various types of singularities and the NRQCD operator renormalization, in some detail. We present theoretical predictions for the future e^+e^- linear collider TESLA, taking into account both brems- and beamstrahlung., 43 pages, 11 figures

In a previous study, it was shown that an intramuscular administration of amino acid PADRE-ELDKWA sequence induced a mucosal immune response to a conserved epitope of human immunodeficiency virus in mice. In the same model, here it is shown that this method can be used with a selected peptide from the M protein of group A streptococci. The PADRE-ASREAK sequence was injected in mice by the intramuscular route. Antibodies against M protein were detected in extracts of mucosal tissues and in serum. The repertoire isotypes of serum immunoglobulin G (IgG) and mucosal IgA and IgG antibodies varied, according to the dose of injected peptide. The highest mucosal IgA antibody response was obtained with 0.01 micro g of antigen per injection, whereas the systemic IgG antibody response increased with 10 micro g of antigen. Mucosal antibody production against streptococci was confirmed by immunofluorescence analysis. These results provide evidence that this novel approach of mucosal vaccination may be of advantage for bacterial systems and suggest a new field of investigation based on synthetic peptide analogues.

We investigate the inclusive production of prompt J/psi mesons in polarized hadron-hadron, photon-hadron, and photon-photon collisions in the factorization formalism of nonrelativistic quantum chromodynamics (NRQCD) providing all contributing partonic cross sections in analytic form. In the case of photoproduction, we also include the resolved-photon contributions. We present numerical results appropriate for BNL RHIC-Spin, the approved SLAC fixed-target experiment E161, and the e^+e^- and gamma gamma modes of TESLA. Specifically, we assess the feasibility to access the spin-dependent parton distributions in the polarized proton and photon. We also point out that preliminary data on J/psi inclusive production taken by the PHENIX Collaboration in unpolarized proton-proton collisions at RHIC tends to favor the NRQCD factorization hypothesis, while it significantly overshoots the theoretical prediction of the color-singlet model at large values of transverse momentum., 34 pages (Latex), 5 figures (Postscript), typos fixed, matches journal version

We present theoretical predictions for the transverse-momentum distribution of $J/\ensuremath{\psi}$ mesons promptly produced in $\ensuremath{\gamma}\ensuremath{\gamma}$ collisions within the factorization formalism of nonrelativistic quantum chromodynamics, including the contributions from both direct and resolved photons, and we perform a conservative error analysis. The fraction of $J/\ensuremath{\psi}$ mesons from decays of bottom-flavored hadrons is estimated to be negligibly small. New data taken by the DELPHI Collaboration at LEP2 nicely confirm these predictions, while they disfavor those obtained within the traditional color-singlet model.

Introduction Les infections fongiques a la suite de transplantations d’organes solides peuvent etre associees a des complications severes chez le receveur. Les consequences d’une contamination du liquide de conservation (LC) par Candida spp. ont ete decrites dans les suites d’une transplantation renale avec des cas d’anevrysme de l’artere du greffon. L’objectif de cette etude etait de determiner l’incidence et les consequences cliniques d’une contamination du LC par Candida spp. au decours d’une transplantation hepatique (TH). Materiel et methodes Etude retrospective incluant tous les patients transplantes hepatiques de 6 centres francais de TH entre janvier 2008 et decembre 2013. Les suites post-operatoires et le devenir des receveurs apres transplantation ont ete colliges. Resultats Dans cette etude, 2107 patients ont ete inclus et 28 avaient une contamination du LC du greffon hepatique a Candida (1,33 %). Candida albicans etait le Candida le plus frequemment retrouve ( n = 18, 64 % des cas). Un traitement antifongique etait administre chez 22 patients avec une duree de traitement allant de 7 a 37 jours. Huit patients (28,6 %) avaient developpe une complication en rapport avec la contamination fongique avec des anevrysmes de l’artere hepatique ( n = 6) ou une peritonite a Candida ( n = 2). Parmi ces 8 patients, 6 avaient recu un traitement antifongique. La mortalite a un an, des patients ayant developpe une complication liee a la contamination, etait de 62,5 %. Discussion L’incidence des contaminations du LC a Candida est faible en TH mais les consequences peuvent etre graves. Dans ce contexte, une surveillance angiographique de l’artere hepatique semble necessaire dans les suites d’une TH mais devra etre evaluee dans une etude a large echelle.

We study the production of a J/psi meson in association with one or two jets in gamma gamma collisions concentrating on the direct-photon contribution, which is expected to be dominant for large J/psi-meson transverse momentum and/or large dijet invariant mass. We work at leading order in the factorization formalism of nonrelativistic QCD and include all relevant colour-octet processes. We present distributions in J/psi-meson transverse momentum and rapidity appropriate for CERN LEP2, a future e^+e^- linear collider, and a possible gamma gamma collider mode of the latter. In the case of the e^+e^- linear collider, we assume the beamstrahlung spectrum appropriate for DESY TESLA., Comment: 25 pages (Latex), 12 figures (Postscript). Version to appear in Nucl. Phys. B

Between January 1989 and May 1991, 97 patients were treated with interleukin 2 in the Oncology Department of the Avicenne Hospital (Bobigny, France). IL 2 was given over 5 days by continuous infusion through an implantable port. Ten patients (4 males, 6 females), mean age 46 years (36-67) with various cancers (breast 3, kidney 1, melanoma 1, colorectal 5), developed infection: 4 local infections around the port, 1 phlebitis, 4 septicemias, 1 bacteremia were observed. In 9 cases blood cultures were positive: Staphylococcus aureus 5, Staphylococcus epidermidis 3, Streptococcus G 1. In 5 cases the same pathogen was isolated from the port and from the blood. The mean leucocyte count was 10,627/mm3 at the time of infection. The delay between the beginning of interleukin 2 treatment and the infection was 3 months. The mean dose of IL 2 administered before infection was 456 million IU. In all cases infection was controlled without lethal complication by antibiotics and catheter removal. This high incidence (8 percent) of staphylococcal infection is partly due to the skin toxicity of IL 2 and to depressed neutrophil chemotactic response. Prophylactic antibiotics are warranted during IL 2 intravenous therapy.

Objectifs Evaluer les motifs d’ablation, la frequence des complications des CCI et les criteres de diagnostic cliniques et microbiologiques d’infection. Methodologie Analyse retrospective sur une periode de 1 an (2007) des dossiers cliniques et microbiologiques des patients traites dans notre hopital dont le CCI a ete retire. L’infection sur CCI a ete etablie a partir de donnees cliniques et/ou microbiologiques : culture positive d’au moins un des elements du CCI suivant : chambre, liquide de rincage, extremite du catheter avec un seuil a 10 3 UFC/ml ou bacteriemie liee au CCI. Resultats 152 ablations de CCI ont ete analysees, representant 150 patients (âge = 61 ans ± 12 ans, 99,3 % de cancers) et 49 337 jours de catheterisme (JC). 79 (52 %) CCI ont ete enleves pour infection, 73 (48 %) pour une cause non infectieuse dont fin de traitement 55 (36 %). Parmi les 79 CCI enleves pour infection, 47 (59,5 % -0,95/1 000 JC) patients avaient au moins un critere microbiologique d’infection : 34 avaient une culture positive pour au moins un element de la chambre (seuil 10 3 UFC/ml) dont 19 associees a une bacteriemie ; 13 ont eu une bacteriemie liee au CCI (CCI cultures negatives). 32 (40,5 %) n’avaient aucun critere microbiologique d’infection. Les bacteries retrouvees etaient : enterobacteries ( n = 16), Pseudomonas aeruginosa ( n = 8), A. baumannii ( n = 1), staphylocoque a coagulase negative ( n = 14), S. aureus ( n = 7), streptocoque ( n = 1), E. faecium ( n = 1), levures ( n = 1). Conclusion La moitie des CCI etaient enlevees pour une complication infectieuse. Cette infection etait averee dans 30 % des cas. Une concertation pluridisciplinaire pourrait contribuer a ameliorer la decision d’ablation des CCI.

Objectifs La duree de contagiosite des malades tuberculeux bacilliferes sous traitement est debattue. Les recommandations de 2003 du CHSP mentionnent une duree d’isolement de 2 a 3 semaines. Plusieurs etudes ont montre que 20 a 67 % des malades avaient encore des cultures positives de prelevements respiratoires a J28 de traitement. Nous avons retrospectivement etudie l’evolution des examens microscopiques (EM) et de la culture (C) des prelevements respiratoires de tous les malades tuberculeux bacilliferes (EM+) mis en isolement respiratoire dans un service de maladies infectieuses entre 2004 et 2007. Methodes Des series de 3 prelevements respiratoires (tubages ou crachats) etaient realisees regulierement. L’isolement respiratoire etait leve apres l’obtention de 3 EM negatifs. Resultats 22 malades (hommes 82 %, âge median 40,5 ans, immunodeprimes 23 %, cavernes 50 %) ont ete mis en isolement respiratoire pour un EM+. Une quadritherapie a ete debutee dans un delai median de 3 jours. Une souche etait INHR, aucune n’etait RMP-R. Le suivi sous traitement (duree mediane 41 j) a ete realisee par etude de crachats ( n = 7) ou tubages ( n = 15). 14 malades sont sortis apres 3 EM negatifs, 4 ont ete transferes en sanatorium, 2 sont rentres a domicile et 1 est decede. Parmi les 13 malades evaluables a J21 de traitement, 11 (85 %) etaient EM+ et 9 (70 %) etaient C+. Pour 8 malades, les cultures ont ete negatives avant la levee de l’isolement (EM+ /C-) avec un delai moyen de 26 jours, totalisant 208 journees d’hospitalisation alors qu’ils n’etaient plus contagieux. Conclusion 70 % des malades evaluables a J21 de traitement etaient C+. La levee de l’isolement respiratoire et le retour a domicile des malades EM+ reste problematique.