BOA: Framework for Automated Builds

Managing large-scale software products is a complex software engineering task. The automation of the software development, release and distribution process is most beneficial in the large collaborations, where the big number of developers, multiple platforms and distributed environment are typical factors. This paper describes Build and Output Analyzer framework and its components that have been developed in CMS to facilitate software maintenance and improve software quality. The system allows to generate, control and analyze various types of automated software builds and tests, such as regular rebuilds of the development code, software integration for releases and installation of the existing versions.Comment: 3 pages, 2 figure

CMS Software Distribution on the LCG and OSG Grids

The efficient exploitation of worldwide distributed storage and computing resources available in the grids require a robust, transparent and fast deployment of experiment specific software. The approach followed by the CMS experiment at CERN in order to enable Monte-Carlo simulations, data analysis and software development in an international collaboration is presented. The current status and future improvement plans are described.Comment: 4 pages, 1 figure, latex with hyperref

Current issues of corporate integrated reporting development in Russia

The subject of the author's research is the genesis of integrated corporate reporting as an innovative model of business reporting. The article discusses the problems of theoretical and methodological nature associated with the process of forming integrated corporate reporting at the present stage. The authors studied the composition of integrated reporting for the main industry sectors, and it is concluded that it is practically no different from reporting in the field of sustainable development. As a research tool for processing and systematizing information, the methods of classification, grouping, comparative analysis, synthesis, aggregation, comparison of alternatives are used. One of the reasons for the current situation, according to the authors, is the lack of appropriate methodological and accounting and analytical support for the preparation of corporate integrated reporting that meets modern requirements and high quality standards of the generated reports, which, according to the authors, should be based on the idea of disclosing the use of capital and conditions of added value creation.peer-reviewe

Использование дражированных семян для посева цикория корневого

Relevance. When using precision seeders, seeds that are uniform in weight and size are needed. The maximum uniformity of the seeds can be achieved by by pelleting. Thanks to the coating, small chicory seeds increase their size by 8 times or more. In this case, the composition of the shell can include various plant protection products against pathogens, growth stimulants, micronutrient fertilizers. It is advisable to seed the seeds with their initial germination of at least 95%.Material and methods. The article presents the results of a study conducted at the Rostov Vegetable Experimental Station for chicory – a branch of the Federal State Budgetary Scientific Institution Federal Scientific Vegetable Center, where seeds with fillers were used for sowing root chicory: Maxim fungicide, treater Prestige, Isabion – liquid organic and mineral fertilizer, Agrogel.Results. As a result, a positive effect of pelleting on the sowing quality of seeds was revealed (germination energy and field germination are higher than in the control, 2% and 0.6%, respectively, and laboratory germination at the control level), effectiveness against root rot during the growing season and during winter storage time, increase in crop root crops yield by more than 30% and ensuring net profit in comparison with the control by 21.4 thousand rubles / ha. At the same time, the level of profitability is increasing by 26%. Актуальность. При использовании сеялок точного высева необходимы семена, однородные по массе и размеру. Максимальной однородности семян можно добиться при помощи дражирования. Благодаря нанесению оболочки мелкие семена цикория увеличивают свой размер в 8 раз и более. При этом в состав оболочки можно включать различные средства защиты растений от патогенов, стимуляторы роста, микроудобрения. Семена целесообразно дражировать при исходной их всхожести не ниже 95%. Инкрустатор-дражиратор ИД-10 в комплексе машин по предпосевной подготовке семян позволяет создавать многослойные оболочки на поверхности семян, не уступающие по качеству зарубежным аналогам. Большое значение имеет разработка приёмов защиты растений путём предпосевного дражирования семян с включением в состав оболочки препаратов, включающих в свой состав инсектициды, фунгициды и стимуляторы роста нового поколения.Материал и методы. В статье приведены результаты исследования, проведённого на Ростовской овощной опытной станции по цикорию – филиале ФГБНУ ФНЦО, где использовали для посева корневого цикория семена с наполнителями: фунгицид Максим – препарат контактного действия, предназначен для защиты культур от болезней, вызываемых различными видами грибов, протравливатель Престиж – обладает инсектицидным и фунгицидным действием, а также способствует более быстрому развитию растений, Изабион – жидкое органо-минеральное удобрение, Агрогель – инертный полимерный сильно набухающий при добавлении жидкости.Результаты. В результате исследований выявлено положительное влияние дражирования на посевные качества семян (энергия прорастания и полевая всхожесть выше, чем на контроле, соответственно на 2% и 0,6%, а лабораторная всхожесть на уровне контроля), эффективность против корневых гнилей в период вегетации и во время зимнего хранения, увеличение урожайности корнеплодов культуры более, чем на 30% и обеспечение чистой прибыли по сравнению с контролем на 21,4 тыс.руб/га. При этом уровень рентабельности увеличивается на 26%.

Search for the standard model Higgs boson in the H to ZZ to 2l 2nu channel in pp collisions at sqrt(s) = 7 TeV

A search for the standard model Higgs boson in the H to ZZ to 2l 2nu decay channel, where l = e or mu, in pp collisions at a center-of-mass energy of 7 TeV is presented. The data were collected at the LHC, with the CMS detector, and correspond to an integrated luminosity of 4.6 inverse femtobarns. No significant excess is observed above the background expectation, and upper limits are set on the Higgs boson production cross section. The presence of the standard model Higgs boson with a mass in the 270-440 GeV range is excluded at 95% confidence level.Comment: Submitted to JHE

Azimuthal anisotropy of charged particles at high transverse momenta in PbPb collisions at sqrt(s[NN]) = 2.76 TeV

The azimuthal anisotropy of charged particles in PbPb collisions at nucleon-nucleon center-of-mass energy of 2.76 TeV is measured with the CMS detector at the LHC over an extended transverse momentum (pt) range up to approximately 60 GeV. The data cover both the low-pt region associated with hydrodynamic flow phenomena and the high-pt region where the anisotropies may reflect the path-length dependence of parton energy loss in the created medium. The anisotropy parameter (v2) of the particles is extracted by correlating charged tracks with respect to the event-plane reconstructed by using the energy deposited in forward-angle calorimeters. For the six bins of collision centrality studied, spanning the range of 0-60% most-central events, the observed v2 values are found to first increase with pt, reaching a maximum around pt = 3 GeV, and then to gradually decrease to almost zero, with the decline persisting up to at least pt = 40 GeV over the full centrality range measured.Comment: Replaced with published version. Added journal reference and DO

Compressed representation of a partially defined integer function over multiple arguments

In OLAP (OnLine Analitical Processing) data are analysed in an n-dimensional cube. The cube may be represented as a partially defined function over n arguments. Considering that often the function is not defined everywhere, we ask: is there a known way of representing the function or the points in which it is defined, in a more compact manner than the trivial one

Measurement of the t t-bar production cross section in the dilepton channel in pp collisions at sqrt(s) = 7 TeV

The t t-bar production cross section (sigma[t t-bar]) is measured in proton-proton collisions at sqrt(s) = 7 TeV in data collected by the CMS experiment, corresponding to an integrated luminosity of 2.3 inverse femtobarns. The measurement is performed in events with two leptons (electrons or muons) in the final state, at least two jets identified as jets originating from b quarks, and the presence of an imbalance in transverse momentum. The measured value of sigma[t t-bar] for a top-quark mass of 172.5 GeV is 161.9 +/- 2.5 (stat.) +5.1/-5.0 (syst.) +/- 3.6(lumi.) pb, consistent with the prediction of the standard model.Comment: Replaced with published version. Included journal reference and DO

Performance of CMS muon reconstruction in pp collision events at sqrt(s) = 7 TeV

The performance of muon reconstruction, identification, and triggering in CMS has been studied using 40 inverse picobarns of data collected in pp collisions at sqrt(s) = 7 TeV at the LHC in 2010. A few benchmark sets of selection criteria covering a wide range of physics analysis needs have been examined. For all considered selections, the efficiency to reconstruct and identify a muon with a transverse momentum pT larger than a few GeV is above 95% over the whole region of pseudorapidity covered by the CMS muon system, abs(eta) < 2.4, while the probability to misidentify a hadron as a muon is well below 1%. The efficiency to trigger on single muons with pT above a few GeV is higher than 90% over the full eta range, and typically substantially better. The overall momentum scale is measured to a precision of 0.2% with muons from Z decays. The transverse momentum resolution varies from 1% to 6% depending on pseudorapidity for muons with pT below 100 GeV and, using cosmic rays, it is shown to be better than 10% in the central region up to pT = 1 TeV. Observed distributions of all quantities are well reproduced by the Monte Carlo simulation.Comment: Replaced with published version. Added journal reference and DO