Тенденції розвитку інфекційних захворювань, визначення їх ризику та прогнозу

To conduct analysis of epizootic situation on infectious diseases during 2016 in Ukraine and the world. It revealed the presence of 37 infectious diseases (African swine fever, Bluetongue, Foot and mouth disease, Lumpy skin disease, Newcastle disease, Classical swine fever, Avian influenza, Sheep pox and goat, Epizootic hemorrhagic disease, Peste des petits ruminants, Covering disease, Middle East respiratory syndrome coronavirus, Anthrax, Venezuelan Equina Encephalomyelitis, Infectious anemіya horses, Bovine spongiform encephalopathy, Rabbit Viral Hemorrhagic Disease, Monkeypox, African horse sickness, Rift valley fever, Myxomatosis, Hemorrhagic septicemia, Camelpox, Eastern equine sleeping sickness, Paratuberculosis, Heartwater disease, Avian Infectious Bronchitis, Infectious bovine rhinotracheites, West Nile fever, Scrapie in sheep, Porcine Reproductive and Respiratory Syndrome, European foulbrood, Rabies, Arthritis-encephalitis of goats, Aujeszky’s disease, Tuberculosis, Brucellosis), that infected animals of different species (pigs, cattle, small cattle, birds, camels, horses, monkeys, bees, rabbits, dogs) in 97 countries. The authors argue, what diseases are at unequal stages of development of epizootic process (initial stage, evolution stage, the stage of fading) and therefore characterized by a different number of foci. The share of these four diseases accounted 91.7% of all outbreaks (Bluetongue – 37.6%, African swine fever – 19.6%, Lumpy Skin Disease – 18.06%, Avian influenza – 16.5%). These diseases have been identified as topical, most dangerous for animals on the territory of Ukraine. To defined predominance causative agents of these diseases in the space or on animals. Implemented risk analysis and prediction for short time while using a set of relevant indicators, which proved to be effective. Report on risk and forecast the authors carried out in information weekly and monthly serials.Проведен анализ эпизоотической ситуации по инфекционных заболеваниях за 2016 год в мире и в Украине. Выявлено наличие 37 инфекционных заболеваний (африканская чума свиней, блутанг, ящур, нодулярный дерматит, болезнь Ньюкасла, классическая чума свиней, грипп птиц, оспа овец и коз, эпизоотическая геморрагическая болезнь, чума мелких жвачных, случная болезнь, коронавирус ближневосточного респираторного синдрома, сибирская язва, венесуэльский энцефаломиелит лошадей, инфекционная анемия лошадей, губкообразная энцефалопатия КРС, геморрагическая болезнь кроликов, оспа обезьян, африканская чума лошадей, лихорадка долины Рифт, миксоматоз кроликов, геморрагическая септицемия, оспа верблюдов, восточный энцефаломиелит лошадей, паратуберкульоз, инфекционный гидроперикардит, инфекционный бронхит птиц, инфекционный ринотрахеит КРС, лихорадка Западного Нила, скрепи, репродуктивно-респираторный синдром свиней, европейский гнилец пчел, бешенство, артрит/энцефалит коз, болезнь Ауески, туберкулез КРС, бруцелез), которые поражали животных разных видов (свиней, КРС,МРС, птиц, верблюдов, лошадей, обезьян, пчел, кроликов, собак) в 97 странах мира. Авторы утверждают, что заболевания находились на неодинаковых стадиях развития эпизоотического процесса (начальная стадия, стадия развития, стадия угасання), а потому характеризовались разным количеством очагов. Так, наиболее распространенными оказались блутанг (2803 очага), африканская чума свиней (1459 очагов), нодулярный дерматит (1348), грипп птиц (1232 очага). На долю этих четырех заболеваний приходится 91,7% всех вспышек (по блутангу – 37,6%, по африканской чуме свиней – 19,6%, по нодулярному дерматиту – 18,06%, по гриппу птиц – 16,5%). Указанные заболевания были обозначены как актуальне, наиболее опасные для животных на территории Украины, и им было уделено особенное внимание. Определено доминирование возбудителей этих заболеваний в пространстве или на животных. Расчитаны риск и прогноз на краткий срок при использовании набора соответствующих показателей, которые оказались эффективными. Сообщение о риске и прогнозе авторы осуществляли в информационных еженедельниках и ежемесячниках.Здійснено аналіз епізоотичної ситуації щодо інфекційних захворювань за 2016 рік у світі та в Україні. Встановлено наявність 37 інфекційних захворювань (африканська чума свиней, блутанг, ящур, нодулярний дерматит, хвороба Ньюкасла, класична чума свиней, грип птахів, віспа овець і кіз, бруцельоз, епізоотична геморагічна хвороба, чума дрібних жуйних, парувальна хвороба, коронавірус близькосхідного респіраторного синдрому, сибірка, венесуельський енцефаломієліт коней, інфекційна анемія коней, губчатоподібна енцефалопатія ВРХ, геморагічна хвороба кролів, віспа мавп, африканська чума коней, лихоманка долини Ріфт, міксоматоз кролів, геморагічна септицемія, віспа верблюдів, східний енцефаломієліт коней, паратуберкульоз, інфекційний гідроперикардит, інфекційний бронхіт птиці, інфекційний ринотрахеїт ВРХ, лихоманка Західного Нілу, скрепі, репродуктивно-респіраторний синдром свиней, європейський гнилець бджіл, сказ, артрит/енцефаліт кіз, хвороба Ауєскі, туберкульоз ВРХ), які уражували тварин різних видів (свиней, ВРХ, ДРХ, птицю, верблюдів, коней, мавп, бджіл, кролів, собак) у 97 країнах світу. Автори стверджують, що різні захворювання перебували на неоднакових стадіях розвитку епізоотичного процесу (початкова стадія, стадія розвитку, стадія затухання), а тому характеризувались різною кількістю вогнищ. Так, найбільшого розповсюдження набули блутанг (2803 вогнищ), африканська чума свиней (1459 вогнищ), нодулярний дерматит (1348 вогнищ), грип птахів (1232 вогнища). На ці чотири захворювання припадає 91,7% всіх спалахів (блутангу – 37,6%, африканської чуми свиней – 19,6%, нодулярного дерматиту – 18,06%, грипу птахів – 16,5%). Вказані захворювання були позначені як актуальні, найбільш небезпечні для тварин на території України, і їм була приділена особлива увага. Визначено домінування збудників цих захворювань у просторі чи на тваринах. Розраховано ризик та прогноз на короткий строк з використанням набору відповідних показників, які виявилися ефективними. Повідомлення про ризик та прогноз автори здійснювали в інформаційних щотижневиках та щомісячниках

New precise determination of the \tau lepton mass at KEDR detector

The status of the experiment on the precise $\tau$ lepton mass measurement running at the VEPP-4M collider with the KEDR detector is reported. The mass value is evaluated from the $\tau^+\tau^-$ cross section behaviour around the production threshold. The preliminary result based on 6.7 pb$^{-1}$ of data is $m_{\tau}=1776.80^{+0.25}_{-0.23} \pm 0.15$ MeV. Using 0.8 pb$^{-1}$ of data collected at the $\psi'$ peak the preliminary result is also obtained: $\Gamma_{ee}B_{\tau\tau}(\psi') = 7.2 \pm 2.1$ eV.Comment: 6 pages, 8 figures; The 9th International Workshop on Tau-Lepton Physics, Tau0

Measurement of \Gamma_{ee}(J/\psi)*Br(J/\psi->e^+e^-) and \Gamma_{ee}(J/\psi)*Br(J/\psi->\mu^+\mu^-)

The products of the electron width of the J/\psi meson and the branching fraction of its decays to the lepton pairs were measured using data from the KEDR experiment at the VEPP-4M electron-positron collider. The results are \Gamma_{ee}(J/\psi)*Br(J/\psi->e^+e^-)=(0.3323\pm0.0064\pm0.0048) keV, \Gamma_{ee}(J/\psi)*Br(J/\psi->\mu^+\mu^-)=(0.3318\pm0.0052\pm0.0063) keV. Their combinations \Gamma_{ee}\times(\Gamma_{ee}+\Gamma_{\mu\mu})/\Gamma=(0.6641\pm0.0082\pm0.0100) keV, \Gamma_{ee}/\Gamma_{\mu\mu}=1.002\pm0.021\pm0.013 can be used to improve theaccuracy of the leptonic and full widths and test leptonic universality. Assuming e\mu universality and using the world average value of the lepton branching fraction, we also determine the leptonic \Gamma_{ll}=5.59\pm0.12 keV and total \Gamma=94.1\pm2.7 keV widths of the J/\psi meson.Comment: 7 pages, 6 figure

New precision measurement of the J/ψJ/\psi- and ψ′\psi' -meson masses

A new high precision measurement of the $J/\psi$- and $\psi'$-meson masses has been performed at the VEPP-4M collider using the KEDR detector. The resonant depolarization method has been employed for the absolute calibration of the beam energy. The following mass values have been obtained: $M_{J/\psi} = 3096.917 \pm 0.010 \pm 0.007$ MeV, $M_{\psi'} = 3686.111 \pm 0.025 \pm 0.009$ MeV. The relative measurement accuracy has reached $4. 10^{-6}$ for $J/\psi$ and $7. 10^{-6}$ for $\psi'$, approximately 3 times better than in the previous precise experiments.Comment: 12 pages, 4 tables, 10 figure

Measurement of the polarisation of W bosons produced with large transverse momentum in pp collisions at sqrt(s) = 7 TeV with the ATLAS experiment

This paper describes an analysis of the angular distribution of W->enu and W->munu decays, using data from pp collisions at sqrt(s) = 7 TeV recorded with the ATLAS detector at the LHC in 2010, corresponding to an integrated luminosity of about 35 pb^-1. Using the decay lepton transverse momentum and the missing transverse energy, the W decay angular distribution projected onto the transverse plane is obtained and analysed in terms of helicity fractions f0, fL and fR over two ranges of W transverse momentum (ptw): 35 < ptw < 50 GeV and ptw > 50 GeV. Good agreement is found with theoretical predictions. For ptw > 50 GeV, the values of f0 and fL-fR, averaged over charge and lepton flavour, are measured to be : f0 = 0.127 +/- 0.030 +/- 0.108 and fL-fR = 0.252 +/- 0.017 +/- 0.030, where the first uncertainties are statistical, and the second include all systematic effects.Comment: 19 pages plus author list (34 pages total), 9 figures, 11 tables, revised author list, matches European Journal of Physics C versio

Observation of a new chi_b state in radiative transitions to Upsilon(1S) and Upsilon(2S) at ATLAS

The chi_b(nP) quarkonium states are produced in proton-proton collisions at the Large Hadron Collider (LHC) at sqrt(s) = 7 TeV and recorded by the ATLAS detector. Using a data sample corresponding to an integrated luminosity of 4.4 fb^-1, these states are reconstructed through their radiative decays to Upsilon(1S,2S) with Upsilon->mu+mu-. In addition to the mass peaks corresponding to the decay modes chi_b(1P,2P)->Upsilon(1S)gamma, a new structure centered at a mass of 10.530+/-0.005 (stat.)+/-0.009 (syst.) GeV is also observed, in both the Upsilon(1S)gamma and Upsilon(2S)gamma decay modes. This is interpreted as the chi_b(3P) system.Comment: 5 pages plus author list (18 pages total), 2 figures, 1 table, corrected author list, matches final version in Physical Review Letter

Search for displaced vertices arising from decays of new heavy particles in 7 TeV pp collisions at ATLAS

We present the results of a search for new, heavy particles that decay at a significant distance from their production point into a final state containing charged hadrons in association with a high-momentum muon. The search is conducted in a pp-collision data sample with a center-of-mass energy of 7 TeV and an integrated luminosity of 33 pb^-1 collected in 2010 by the ATLAS detector operating at the Large Hadron Collider. Production of such particles is expected in various scenarios of physics beyond the standard model. We observe no signal and place limits on the production cross-section of supersymmetric particles in an R-parity-violating scenario as a function of the neutralino lifetime. Limits are presented for different squark and neutralino masses, enabling extension of the limits to a variety of other models.Comment: 8 pages plus author list (20 pages total), 8 figures, 1 table, final version to appear in Physics Letters

Measurement of the inclusive isolated prompt photon cross-section in pp collisions at sqrt(s)= 7 TeV using 35 pb-1 of ATLAS data

A measurement of the differential cross-section for the inclusive production of isolated prompt photons in pp collisions at a center-of-mass energy sqrt(s) = 7 TeV is presented. The measurement covers the pseudorapidity ranges |eta|<1.37 and 1.52<=|eta|<2.37 in the transverse energy range 45<=E_T<400GeV. The results are based on an integrated luminosity of 35 pb-1, collected with the ATLAS detector at the LHC. The yields of the signal photons are measured using a data-driven technique, based on the observed distribution of the hadronic energy in a narrow cone around the photon candidate and the photon selection criteria. The results are compared with next-to-leading order perturbative QCD calculations and found to be in good agreement over four orders of magnitude in cross-section.Comment: 7 pages plus author list (18 pages total), 2 figures, 4 tables, final version published in Physics Letters

Search for direct production of charginos and neutralinos in events with three leptons and missing transverse momentum in √s = 7 TeV pp collisions with the ATLAS detector

A search for the direct production of charginos and neutralinos in final states with three electrons or muons and missing transverse momentum is presented. The analysis is based on 4.7 fb−1 of proton–proton collision data delivered by the Large Hadron Collider and recorded with the ATLAS detector. Observations are consistent with Standard Model expectations in three signal regions that are either depleted or enriched in Z-boson decays. Upper limits at 95% confidence level are set in R-parity conserving phenomenological minimal supersymmetric models and in simplified models, significantly extending previous results

Jet size dependence of single jet suppression in lead-lead collisions at sqrt(s(NN)) = 2.76 TeV with the ATLAS detector at the LHC

Measurements of inclusive jet suppression in heavy ion collisions at the LHC provide direct sensitivity to the physics of jet quenching. In a sample of lead-lead collisions at sqrt(s) = 2.76 TeV corresponding to an integrated luminosity of approximately 7 inverse microbarns, ATLAS has measured jets with a calorimeter over the pseudorapidity interval |eta| < 2.1 and over the transverse momentum range 38 < pT < 210 GeV. Jets were reconstructed using the anti-kt algorithm with values for the distance parameter that determines the nominal jet radius of R = 0.2, 0.3, 0.4 and 0.5. The centrality dependence of the jet yield is characterized by the jet "central-to-peripheral ratio," Rcp. Jet production is found to be suppressed by approximately a factor of two in the 10% most central collisions relative to peripheral collisions. Rcp varies smoothly with centrality as characterized by the number of participating nucleons. The observed suppression is only weakly dependent on jet radius and transverse momentum. These results provide the first direct measurement of inclusive jet suppression in heavy ion collisions and complement previous measurements of dijet transverse energy imbalance at the LHC.Comment: 15 pages plus author list (30 pages total), 8 figures, 2 tables, submitted to Physics Letters B. All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/HION-2011-02