1,308 research outputs found

    Influence of ? Irradiation on Concrete Strength

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    Aging of concrete due to gamma irradiation. Strength of concrete are in a good correspondency with already known results.

    ТЕОРЕТИЧНІ АСПЕКТИ ОЦІНЮВАННЯ РЕЗУЛЬТАТИВНОСТІ УПРАВЛІННЯ КАПІТАЛОМ ПІДПРИЄМСТВА

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    The determining vector of the transformation of the company capital management system is the search and integration of the latest business management tools that are oriented at achieving the planned results, and have the potential for increased efficiency and effectiveness of management actions in relation to capital and the enterprise’s activity as a whole. In view of this, the research and improvement of the conceptual provisions for performance assessment of company capital management becomes relevant. The purpose of the article is to improve the theoretical basis of performance assessment of company capital management from the point of essence’s clarification of the main concepts, principles and technology of the process. On the basis of generalization and critical analysis of theoretical knowledge of company capital management and the effectiveness of this process, there is an author definition of following concepts of “company capital”, “company capital management system”, “process of company capital management”, “the effectiveness of company capital management” in the article. There are revealed the principles, the observance of which ensure the adequacy of the object, criteria, procedures and tools for performance assessment of the company capital management in certain requirements of the subjects of assessment. It is proposed the referent model of performance assessment of company the capital management for practical use and it was determined the prospects of further scientific researches.На основании обобщения и критического анализа вопросов теории управления капиталом предпринимательских структур и результативности этого процесса обоснованы концептуальные положения оценки результативности управления капиталом предприятия. Изложена авторская точка зрения относительно трактовки капитала предприятия, системы и процесса управления им, сути и содержания понятия «результативность управления капиталом предприятия», моделирования процесса оценки результативности управленческих действий. Определены принципы, соблюдение которых обеспечивает повышение объективности результатов оценки управления капиталом и их практическую значимость для своевременной корректировки управленческих действий.На підставі узагальнення і критичного аналізу теоретичних знань з управління капіталом підприємницьких структур і результативності цього процесу обґрунтовано концептуальні положення оцінювання результативності управління капіталом підприємства. Наведена авторська точка зору щодо трактування капіталу підприємства, системи і процесу управління ним, суті та змістовності поняття «результативність управління капіталом підприємства», моделювання процесу оцінювання результативності управлінських дій. Визначено принципи, що забезпечують підвищення об’єктивності результатів оцінювання та їхню практичну значущість для своєчасного коригування управлінських дій щодо капіталу підприємства

    К ВОПРОСУ О ЩАДИМОСТИ В ХИРУРГИИ ОТОСКЛЕРОЗА

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    The article deals with optimization of the current technical methods in operations on the osteosclerotic stapes aimed at minimization of any trauma in the inner ear and at maximal possible safety for the sound-conducting structures - the factors that guarantee the functional results of the surgery.Статья посвящена оптимизации технических приемов современных способов операций на стремени при отосклерозе с целью как минимизации травматичности внутреннего уха, так и максимально возможной сохранности звукопроводящих структур среднего уха, что во многом и определят функциональный результат операции

    Changing Preferences for Survival After Hospitalization With Advanced Heart Failure

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    ObjectivesThis study was designed to analyze how patient preferences for survival versus quality-of-life change after hospitalization with advanced heart failure (HF).BackgroundAlthough patient-centered care is a priority, little is known about preferences to trade length of life for quality among hospitalized patients with advanced HF, and it is not known how those preferences change after hospitalization.MethodsThe time trade-off utility, symptom scores, and 6-min walk distance were measured in 287 patients in the ESCAPE (Evaluation Study of Congestive Heart Failure and Pulmonary Artery Catheter Effectiveness) trial at hospitalization and again during 6 months after therapy to relieve congestion.ResultsWillingness to trade was bimodal. At baseline, the median trade for better quality was 3 months' survival time, with a modest relation to symptom severity. Preference for survival time was stable for most patients, but increase after discharge occurred in 98 of 145 (68%) patients initially willing to trade survival time, and was more common with symptom improvement and after therapy guided by pulmonary artery catheters (p = 0.034). Adjusting days alive after hospital discharge for patients' survival preference reduced overall days by 24%, with the largest reduction among patients dying early after discharge (p = 0.0015).ConclusionsPreferences remain in favor of survival for many patients despite advanced HF symptoms, but increase further after hospitalization. The bimodal distribution and the stability of patient preference limit utility as a trial end point, but support its relevance in design of care for an individual patient

    Results from the Survey of Antibiotic Resistance (SOAR) 2014–16 in Ukraine and the Slovak Republic

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    S. pneumoniae isolates collected in Ukraine (n"100) showed susceptibility 97% fratesor amoxicillin, amoxicillin/clavulanic acid, penicillin [intravenous (iv) non-meningitis] and fluoroquinolones, between 83% and 86% for oral penicillin, macrolides and cefaclor, and 75% for trimethoprim/sulfamethoxazole. Susceptibility was substantially lower in the Slovak Republic (n"95). All isolates were susceptible to ratesthe fluoroquinolones, but susceptibility to penicillin, amoxicillin, amoxicillin/clavulanic acid, cefuroxime and trimethoprim/sulfamethoxazole varied between 61% and 64%, with only 44% of isolates susceptible to the macrolides. Susceptibility of H. influenzaewasmorehomogeneous,with susceptibilitytoamoxicillin/clavulanic acid,ceftriaxone,cefuroxime, azithromycin and the fluoroquinolones seen in .90% of isolates by CLSI criteria in both countries. Much greater variability was seen across breakpoints, especially for azithromycin, cefaclor and cefuroxime. The b-lactamase rate was 5.1% (5/98) in the Slovak Republic and 7.3% (7/96) in Ukraine, but the Slovak Republic also had a relativelyhighrateofb-lactamase-negative-ampicillin-resistant(BLNAR)isolates(7.1%;7/98)

    Single hadron response measurement and calorimeter jet energy scale uncertainty with the ATLAS detector at the LHC

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    The uncertainty on the calorimeter energy response to jets of particles is derived for the ATLAS experiment at the Large Hadron Collider (LHC). First, the calorimeter response to single isolated charged hadrons is measured and compared to the Monte Carlo simulation using proton-proton collisions at centre-of-mass energies of sqrt(s) = 900 GeV and 7 TeV collected during 2009 and 2010. Then, using the decay of K_s and Lambda particles, the calorimeter response to specific types of particles (positively and negatively charged pions, protons, and anti-protons) is measured and compared to the Monte Carlo predictions. Finally, the jet energy scale uncertainty is determined by propagating the response uncertainty for single charged and neutral particles to jets. The response uncertainty is 2-5% for central isolated hadrons and 1-3% for the final calorimeter jet energy scale.Comment: 24 pages plus author list (36 pages total), 23 figures, 1 table, submitted to European Physical Journal

    Hunt for new phenomena using large jet multiplicities and missing transverse momentum with ATLAS in 4.7 fb−1 of s√=7TeV proton-proton collisions

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    Results are presented of a search for new particles decaying to large numbers of jets in association with missing transverse momentum, using 4.7 fb−1 of pp collision data at s√=7TeV collected by the ATLAS experiment at the Large Hadron Collider in 2011. The event selection requires missing transverse momentum, no isolated electrons or muons, and from ≥6 to ≥9 jets. No evidence is found for physics beyond the Standard Model. The results are interpreted in the context of a MSUGRA/CMSSM supersymmetric model, where, for large universal scalar mass m 0, gluino masses smaller than 840 GeV are excluded at the 95% confidence level, extending previously published limits. Within a simplified model containing only a gluino octet and a neutralino, gluino masses smaller than 870 GeV are similarly excluded for neutralino masses below 100 GeV

    Expected Performance of the ATLAS Experiment - Detector, Trigger and Physics

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    A detailed study is presented of the expected performance of the ATLAS detector. The reconstruction of tracks, leptons, photons, missing energy and jets is investigated, together with the performance of b-tagging and the trigger. The physics potential for a variety of interesting physics processes, within the Standard Model and beyond, is examined. The study comprises a series of notes based on simulations of the detector and physics processes, with particular emphasis given to the data expected from the first years of operation of the LHC at CERN
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