ПАТОГЕНЕТИЧЕСКИЕ АСПЕКТЫ ВЗАИМОСВЯЗИ ИНФЕКЦИОННЫХ ЗАБОЛЕВАНИЙ РОТОВОЙ ПОЛОСТИ С РАЗВИТИЕМ И ПРОГРЕССИРОВАНИЕМ АТЕРОСКЛЕРОЗА И ВОЗМОЖНОСТИ ИХ КОМПЛЕКСНОЙ ПРОФИЛАКТИКИ

The article contains the modern literature data about impact of various infectious agents on the development and progression of atherosclerotic disease. The data are demonstrated the role of various infectious diseases, including periodontal diseases, in the development of biological degradation and destabilization of atherosclerotic plaques. The article questions of organization of primary prevention of cardiovascular disease based on the screening assessment by stomatologist the oral sanitary status. Necessary to carry out sanitation of chronic infection foci of the mouth on the basis of existing children’s health centers. The children’s health centers have a set of dental equipment, with which can perform a screening diagnosis of dental caries, periodontal diseases, non-carious lesions, diseases of the mucous membranes, and conduct preventive oral sanitation. The duties of dental hygienists is teaching children of different age groups to the rules of oral care, demonstration of skills, brushing teeth, information about the importance of prevention of dental caries and periodontal disease, as it is not only important for the preservation of the teeth, but also may prevent the development of ardiovasculardisease adulthood.В статье приводится обзор современной литературы о влиянии различных инфекционных агентов на развитие и прогрессирование атеросклероза. В частности, приводятся данные о роли некоторых возбудителей заболеваний периодонта в деструкции и дестабилизации капсулы атеросклеротических бляшек. Рассматриваются вопросы организации первичной профилактики сердечно-сосудистых заболеваний, основанной на скрининговой оценке гигиенического состояния полости рта и своевременной санации очагов инфекции на базе действующих детских центров здоровья. Детские центры здоровья оснащены комплектом стоматологического оборудования, что позволяет в режиме скринингового тестирования осуществлять диагностику кариеса зубов, болезней пародонта, некариозных поражений, болезней слизистой оболочки и проводить превентивную санацию ротовой полости. В обязанности стоматолога-гигиениста входит обучение детей разных возрастных групп правилам ухода за полостью рта, демонстрация навыков чистки зубов, информирование о важности профилактики кариеса зубов и заболеваний пародонта, так как это имеет не только важное значение для сохранения зубов, но и может предотвратить развитие сердечно-сосудистых заболеваний во взрослом возрасте

Синтез и свойства комплекса рения c n-бутанолом и i-бутанолом

First rhenium oxobutoxoderivatives with n-BuOH and i-BuOH have been obtained by electrochemical method. The decomposition rhenium complex with n-BuOH at 412°С in oxidizing atmosphere results in obtaining oxides of Re(VI) and Re(IV) in the condensed phase.Электрохимическим методом получены комплексы рения с n-бутанолом и i-бутанолом. Разложение комплекса с n-BuOH в окислительной атмосфере при 412°С приводит к получению в конденсированной фазе оксидов Re(VI) и Re(IV)

Precise measurement of the top quark mass in the dilepton channel at D0

We measure the top quark mass (mt) in ppbar collisions at a center of mass energy of 1.96 TeV using dilepton ttbar->W+bW-bbar->l+nubl-nubarbbar events, where l denotes an electron, a muon, or a tau that decays leptonically. The data correspond to an integrated luminosity of 5.4 fb-1 collected with the D0 detector at the Fermilab Tevatron Collider. We obtain mt = 174.0 +- 1.8(stat) +- 2.4(syst) GeV, which is in agreement with the current world average mt = 173.3 +- 1.1 GeV. This is currently the most precise measurement of mt in the dilepton channel.Comment: 7 pages, 4 figure

Double parton interactions in photon+3 jet events in ppbar collisions sqrt{s}=1.96 TeV

We have used a sample of photon+3 jets events collected by the D0 experiment with an integrated luminosity of about 1 fb^-1 to determine the fraction of events with double parton scattering (f_DP) in a single ppbar collision at sqrt{s}=1.96 TeV. The DP fraction and effective cross section (sigma_eff), a process-independent scale parameter related to the parton density inside the nucleon, are measured in three intervals of the second (ordered in pT) jet transverse momentum pT_jet2 within the range 15 < pT_jet2 < 30 GeV. In this range, f_DP varies between 0.23 < f_DP < 0.47, while sigma_eff has the average value sigma_eff_ave = 16.4 +- 0.3(stat) +- 2.3(syst) mb.Comment: 15 pages, 13 figure

Evidence for an anomalous like-sign dimuon charge asymmetry

We measure the charge asymmetry A of like-sign dimuon events in 6.1 fb(-1) of p (p) over bar collisions recorded with the D0 detector at a center-of-mass energy root s = 1.96 TeV at the Fermilab Tevatron collider. From A, we extract the like-sign dimuon charge asymmetry in semileptonic b-hadron decays: A(sl)(b) = -0.00957 +/- 0.00251 (stat) +/- 0.00146 (syst). This result differs by 3.2 standard deviations from the standard model prediction A(sl)(b)(SM) = (-2.3(0.6)(+0.5)) x 10(-4) and provides first evidence of anomalous CP violation in the mixing of neutral B mesons

Dependence of the ttˉt\bar{t} production cross section on the transverse momentum of the top quark

We present a measurement of the differential cross section for $t\bar{t}$ events produced in $p\bar{p}$ collisions at $\sqrt{s}=1.96$ TeV as a function of the transverse momentum ($p_T$) of the top quark. The selected events contain a high-$p_T$ lepton ($\ell$), four or more jets, and a large imbalance in $p_T$, and correspond to 1 fb${}^{-1}$ of integrated luminosity recorded with the D0 detector. Each event must have at least one candidate for a $b$ jet. Objects in the event are associated through a constrained kinematic fit to the $t\bar{t}\to WbW\bar{b} \to \ell\nu b q\bar{q}'\bar{b}$ process. Results from next-to-leading-order perturbative QCD calculations agree with the measured differential cross section. Comparisons are also provided to predictions from Monte Carlo event generators using QCD calculations at different levels of precision.Comment: 8 pages, 6 figures, 4 tables, updated to reflect the published versio

Measurement of the t-channel single top quark production cross section

The D0 collaboration reports direct evidence for electroweak production of single top quarks through the t-channel exchange of a virtual W boson. This is the first analysis to isolate an individual single top quark production channel. We select events containing an isolated electron or muon, missing transverse energy, and two, three or four jets from 2.3 fb^-1 of ppbar collisions at the Fermilab Tevatron Collider. One or two of the jets are identified as containing a b hadron. We combine three multivariate techniques optimized for the t-channel process to measure the t- and s-channel cross sections simultaneously. We measure cross sections of 3.14 +0.94 -0.80 pb for the t-channel and 1.05 +-0.81 pb for the s-channel. The measured t-channel result is found to have a significance of 4.8 standard deviations and is consistent with the standard model prediction.Comment: 7 pages, 6 figure

Search for new fermions ("quirks") at the Fermilab Tevatron Collider

We report results of a search for particles with anomalously high ionization in events with a high transverse energy jet and large missing transverse energy in $2.4$ fb$^{-1}$ of integrated luminosity collected by the D0 experiment at the Fermilab Tevatron $p\bar{p}$ collider. Production of such particles (quirks) is expected in scenarios with extra QCD-like {\it SU(N)} sectors, and this study is the first dedicated search for such signatures. We find no evidence of a signal and set a lower mass limit of 107 ~GeV for the mass of a charged quirk with strong dynamics scale $\Lambda$ in the range from 10 keV to 1 MeV.Comment: submitted to Phys. Rev. Letter