292 research outputs found

    Cognitive Development and Adaptive Skills of Children in Institutions of Russian Federation

    Get PDF
    In present study we examine cognitive development and adaptive skills of children raised in institutions (called Baby Homes) in Russian Federation. Previously it was shown that children in institutions leg behind their age peers in physical and motor development, show deficits in cognitive and language development. However, during the last few years important changes have been introduced in the institutional care system in Russian Federation and there is a dearth of research on cognitive development of children in Baby Homes after the changes have been implemented. The purpose of the current study was to examine cognitive development and adaptive skills of children residing in modern baby homes. We examined 59 children in the age range from 35 to 59 months: 38 children living in baby homes (M = 45,42, SD = 7.04; 17 girls, 21 boys) and 21 children living in biological families (M = 44,90, SD = 7,76; 13 girls, 8 boys). To evaluate cognitive development of children we used three non-verbal scales of the Mullen Scales of Early Learning and the Vineland Behavior Adaptive Scales to obtain information about children’s adaptive skills. Results show that children in baby homes show significantly lower scores on all the scales of cognitive development and adaptive skills in comparison with children in biological families. These results demonstrate the necessity of future changes in the institutional care system in order to improve the environment for children in institutions, nurturing their development

    Adaptive diving in the structure of adaptive tourism as a method for rehabilitation of persons with CP

    Get PDF
    Cerebral palsy (CP) is a common and disabling disease leading to severe disability which requires complex specific methods of correction. The article examines an adaptive diving as new direction of adaptive tourism and an effective method of physical and psychological rehabilitation of persons with CP.Детский церебральный паралич (ДЦП) является распространенным и приводящим к тяжелой инвалидности неврологическим заболеванием, для коррекции которого зачастую необходимы комплексные специфические методы реабилитации. В статье рассматривается парадайвинг как новое направление в структуре адаптивного туризма в качестве эффективного метода физической и психологической реабилитации лиц с ДЦП

    КЛИНИКО-ЭКСПЕРИМЕНАЛЬНЫЕ ИССЛЕДОВАНИЯ ИММУНОМОДУЛИРУЮЩЕГО ЭФФЕКТА АМИСУЛЬПРИДА

    Get PDF
    Study of immunomodulatory effect of atypical antipsychotic amisulpride has revealed a positive clinical effect after 6-week therapy of schizophrenic patients regarding both positive and negative symptoms. A decrease in activity of humoral immunity factors (В lymphocytes, immunoglobulins, HLA-DR+-cells) identified among schizophrenic patients in the process of amisulpride therapy can be attributed to a positive effect optimizing the ratio Th1/Th2. Amisulpride when used under experimental conditions produced a suppression of IgM-immune response in mice of the C57BL/6J strain. This effect was more expressed in animals with aggressive behavior pattern. Изучение иммуномодулирующего эффекта атипичного антипсихотика амисульприда в клинике продемонстрировало положительный клинический эффект в динамике 6-недельной терапии больных шизофренией в отношении как позитивной, так и негативной симптоматики. Установленное снижение активности факторов гуморального иммунитета (В лимфоцитов, иммуноглобулинов, клеток HLA-DR+) у больных шизофренией в процессе терапии амисульпридом можно отнести к благоприятному эффекту, оптимизирующему соотношение Т лимфоцитов-хелперов Tх1/Tх2. Использование амисульприда в экспериментальных условиях привело к угнетению IgM-иммунного ответа у мышей линии С57BL/6J, наиболее выраженное при проявлении у них агрессивного типа поведения.

    Quartz accelerator of charged particles

    Get PDF
    Results of first experiments with piezoelectric accelerator built on quartz crystals as piezoelectric elements are presented. Accelerating voltage in such quartz accelerator is produced at compression in vacuum of quartz crystals along polar axis. The construction of the quartz accelerator and results of measurements the spectra of X-ray radiation which is produced by electrons accelerated in such accelerator are described. Accelerating voltage in quartz accelerator observed in the experiment is discussed.Представлено результати перших експериментів з п'єзоелектричним прискорювачем, побудованим на кристалах кварцу в якості п'єзоелементів. Прискорювальна напруга в такому кварцовому прискорювачі створюється при стисненні у вакуумі кристалів кварцу уздовж полярної осі. Описанi конструкція кварцового прискорювача і результати вимірювань спектрів рентгенівського випромінювання, яке виробляється електронами, прискореними в такому прискорювачі. Обговорюється прискорююча напруга в кварцовому прискорювачі, що спостерігається в експерименті.Представлены результаты первых экспериментов с пьезоэлектрическим ускорителем, построенным на кристаллах кварца в качестве пьезоэлементов. Ускоряющее напряжение в таком кварцевом ускорителе создается при сжатии в вакууме кристаллов кварца вдоль полярной оси. Описаны конструкция кварцевого ускорителя и результаты измерений спектров рентгеновского излучения, которое производится электронами, ускоренными в таком ускорителе. Обсуждается ускоряющее напряжение в кварцевом ускорителе, наблюдаемое в эксперименте

    Search for a W' boson decaying to a bottom quark and a top quark in pp collisions at sqrt(s) = 7 TeV

    Get PDF
    Results are presented from a search for a W' boson using a dataset corresponding to 5.0 inverse femtobarns of integrated luminosity collected during 2011 by the CMS experiment at the LHC in pp collisions at sqrt(s)=7 TeV. The W' boson is modeled as a heavy W boson, but different scenarios for the couplings to fermions are considered, involving both left-handed and right-handed chiral projections of the fermions, as well as an arbitrary mixture of the two. The search is performed in the decay channel W' to t b, leading to a final state signature with a single lepton (e, mu), missing transverse energy, and jets, at least one of which is tagged as a b-jet. A W' boson that couples to fermions with the same coupling constant as the W, but to the right-handed rather than left-handed chiral projections, is excluded for masses below 1.85 TeV at the 95% confidence level. For the first time using LHC data, constraints on the W' gauge coupling for a set of left- and right-handed coupling combinations have been placed. These results represent a significant improvement over previously published limits.Comment: Submitted to Physics Letters B. Replaced with version publishe

    Search for the standard model Higgs boson decaying into two photons in pp collisions at sqrt(s)=7 TeV

    Get PDF
    A search for a Higgs boson decaying into two photons is described. The analysis is performed using a dataset recorded by the CMS experiment at the LHC from pp collisions at a centre-of-mass energy of 7 TeV, which corresponds to an integrated luminosity of 4.8 inverse femtobarns. Limits are set on the cross section of the standard model Higgs boson decaying to two photons. The expected exclusion limit at 95% confidence level is between 1.4 and 2.4 times the standard model cross section in the mass range between 110 and 150 GeV. The analysis of the data excludes, at 95% confidence level, the standard model Higgs boson decaying into two photons in the mass range 128 to 132 GeV. The largest excess of events above the expected standard model background is observed for a Higgs boson mass hypothesis of 124 GeV with a local significance of 3.1 sigma. The global significance of observing an excess with a local significance greater than 3.1 sigma anywhere in the search range 110-150 GeV is estimated to be 1.8 sigma. More data are required to ascertain the origin of this excess.Comment: Submitted to Physics Letters

    Measurement of the Lambda(b) cross section and the anti-Lambda(b) to Lambda(b) ratio with Lambda(b) to J/Psi Lambda decays in pp collisions at sqrt(s) = 7 TeV

    Get PDF
    The Lambda(b) differential production cross section and the cross section ratio anti-Lambda(b)/Lambda(b) are measured as functions of transverse momentum pt(Lambda(b)) and rapidity abs(y(Lambda(b))) in pp collisions at sqrt(s) = 7 TeV using data collected by the CMS experiment at the LHC. The measurements are based on Lambda(b) decays reconstructed in the exclusive final state J/Psi Lambda, with the subsequent decays J/Psi to an opposite-sign muon pair and Lambda to proton pion, using a data sample corresponding to an integrated luminosity of 1.9 inverse femtobarns. The product of the cross section times the branching ratio for Lambda(b) to J/Psi Lambda versus pt(Lambda(b)) falls faster than that of b mesons. The measured value of the cross section times the branching ratio for pt(Lambda(b)) > 10 GeV and abs(y(Lambda(b))) < 2.0 is 1.06 +/- 0.06 +/- 0.12 nb, and the integrated cross section ratio for anti-Lambda(b)/Lambda(b) is 1.02 +/- 0.07 +/- 0.09, where the uncertainties are statistical and systematic, respectively.Comment: Submitted to Physics Letters

    Search for new physics in events with opposite-sign leptons, jets, and missing transverse energy in pp collisions at sqrt(s) = 7 TeV

    Get PDF
    A search is presented for physics beyond the standard model (BSM) in final states with a pair of opposite-sign isolated leptons accompanied by jets and missing transverse energy. The search uses LHC data recorded at a center-of-mass energy sqrt(s) = 7 TeV with the CMS detector, corresponding to an integrated luminosity of approximately 5 inverse femtobarns. Two complementary search strategies are employed. The first probes models with a specific dilepton production mechanism that leads to a characteristic kinematic edge in the dilepton mass distribution. The second strategy probes models of dilepton production with heavy, colored objects that decay to final states including invisible particles, leading to very large hadronic activity and missing transverse energy. No evidence for an event yield in excess of the standard model expectations is found. Upper limits on the BSM contributions to the signal regions are deduced from the results, which are used to exclude a region of the parameter space of the constrained minimal supersymmetric extension of the standard model. Additional information related to detector efficiencies and response is provided to allow testing specific models of BSM physics not considered in this paper.Comment: Replaced with published version. Added journal reference and DO

    Measurement of isolated photon production in pp and PbPb collisions at sqrt(sNN) = 2.76 TeV

    Get PDF
    Isolated photon production is measured in proton-proton and lead-lead collisions at nucleon-nucleon centre-of-mass energies of 2.76 TeV in the pseudorapidity range |eta|<1.44 and transverse energies ET between 20 and 80 GeV with the CMS detector at the LHC. The measured ET spectra are found to be in good agreement with next-to-leading-order perturbative QCD predictions. The ratio of PbPb to pp isolated photon ET-differential yields, scaled by the number of incoherent nucleon-nucleon collisions, is consistent with unity for all PbPb reaction centralities.Comment: Submitted to Physics Letters

    Measurement of the mass difference between top quark and antiquark in pp collisions at root s=8 TeV

    Get PDF
    Peer reviewe
    corecore