Doping effect on the evolution of the pairing symmetry in n-type superconductor near antiferromagnetic phase boundary

We present the investigation results of the in-plane \{rho}(T) resistivity tensor at the temperature range 0.4-40 K in magnetic fields up to 90kOe (H||c, J||ab) for electron-doped Nd{2-x}Ce{x}CuO{4+{\delta}} with different degree of disorder near antiferromagnetic - superconducting phase boundary. We have experimentally found that for optimally doped compound both the upper critical field slope and the critical temperature decrease with increasing of the disorder parameter (d-wave pairing) while in the case of the underdoped system the critical temperature remains constant and (dHc2/dT)|Tc increases with increasing of the disorder (s-wave pairing). These features suggest a possible implementation of the complex mixture state as the (s+id)-pairing.Comment: 9 pages, 2 figure

Hall Resistivity Correlations in Disordered Electron-Doped Nd 2 - xCe xCuO 4 + δ Films

The resistivity tensor correlations ρx y(B) ∼ [ρxx(B)]β for the mixed state magnetic field dependencies of the resistivity tensor of electron-doped Nd 2 - xCe xCuO 4 + δ/SrTiO3 single-crystal films near the antiferromagnetic–superconducting phase transition and with varying degree of disorder (δ) were studied. The decrease of β from 1.2 ± 0.2 at x = 0.14 to 0.6 ± 0.1 at x = 0.15 points out on the evidence of the change from the anisotropic s-wave to the d-wave pairing symmetry in the external magnetic field at the transition from underdoped to optimally doped region. Peculiarities of the power law dependence of the vortex motion in the mixed state can be connected with some features of the non-stoichiometric disorder in layered electron-doped superconductors. © 2017, Springer Science+Business Media New York

Resistivity tensor correlations in the mixed state of electron-doped superconductor Nd2-xCexCuO4+δ

The magnetic-field dependencies of the longitudinal and Hall resistance of the electron-doped compounds Nd2-xCexCuO4+δ in underdoped region with x = 0.14 and with varying degrees of disorder (δ) were investigated. It was established experimentally that the correlation between the longitudinal electrical resistivity and the Hall resistivity can be analyzed on the basis of scaling relationships: ρxy(B) ∼ [ρxx(B)]β. For the totality of the investigated single-crystal films of Nd2-xCexCuO4+δ/SrTiO3 the values of β from 0.8 to 1.55 is found. The observed feature in the electron-doped two-dimensional systems can be associated both with a displaying of anisotropic s - wave or d - wave pairing symmetry and with a pinning due to an essential degree of disorder in the samples under study. © 2016 Published by Elsevier B.V

Management effectiveness of students socialization as a development imperative of cultures dialogue and civilizations partnership

© 2016, Econjournals. All rights reserved.The relevance of the study is conditioned by the ways’ search to prevent the civilizations’ clash and to settle local inter-civilizational conflicts. In the context of globalization the world is increasingly integrated into a single wholeness which is constantly faced with the necessity of cultural pluralism in problems’ solving of contemporaneity. At the end of the twentieth century, with the initiative of the United Nations the idea of an “Alliance of civilizations” appeared aimed at eliminating of the gap between Muslim and Christian communities. The society demanded from research universities training of professionals, which are not only competitive in the labor market, but also possess civil position, ready to self-realization and construction of their own life in the flux of social transformations. The article is aimed at clarifying of the management peculiarities of National Research University students’ socialization as a development imperative of the cultures’ dialogue and civilizations’ partnership. The leading method is the method of action research, allowing to obtain new knowledge about the interaction processes of socialization, cultures’ dialogue and civilizations’ partnership and to develop the management mechanism of National Research University students’ socialization as a development imperative of the cultures’ dialogue and civilizations’ partnership. The article reveals the essence of socialization, cultures’ dialogue and civilizations’ partnership; gives the characteristic of professional education as agent of socialization; clarifies universal mechanisms of socialization (traditional, institutional, stylized, interpersonal, reflexive); determines pedagogical principles (dialectic inclusion of national culture in national and world culture system, multicultural identity and self-actualization of personality, axiological, multiculturalism) of management of National Research University students’ socialization as a development imperative of the cultures’ dialogue and civilizations’ partnership; clarifies pedagogical tools (content and technology) and pedagogical conditions (inclusion in the educational content of the educational material that provides the dialectical relationship between national identity of the learners with the development of social and moral norms of behavior; formation of the system of cultural imperatives; the formation of an integrated poly-cultural worldview in all agents of socialization) of management effectiveness in National Research University students’ socialization as a development imperative of the cultures’ dialogue and civilizations’ partnership; presents the developed management mechanism in the socialization of students of National Research University as a development imperative of the dialogue of cultures and partnership of civilizations. The paper submissions can be useful for teachers of research universities; specialists of centers of qualification improvement and personnel retraining the selection and structuring of the content for the training of scientific and pedagogical staff of research universities

CROSSREACTIVE ANTIBODIES AND MEMORY T CELLS TO HUMAN AND ZOONOTIC INFLUENZA A VIRUSES IN VOLUNTEERS

There exists a real hazard of transferring zoonotic influenza A viruses, either swine, or avian, into human population. In such case, severity of such pandemics depends on the pathogen-specific immunity in the population. Virtual absence of such immunity in humans was declared in the literature. In this work, we assessed systemic, local, and T-cell immunity to potentially pandemic H3N2sw, H5N1, H5N2, H7N3, H7N9 and H2N2 influenza A viruses in a group of healthy adults of different age. Our results indicate that these subjects develop the following immune reactions: (i) local (i.e., nasal IgA) and cellular (CD4+ and CD8v memory T cells) heterosubtypic immunity, in absence of detectable virus-specific serum antibodies to avian influenza A viruses; (ii) Local immune responses (as nasal IgA) to human A (H2N2) virus which circulated in 1957-1968 were detected both in subjects who could be primed at that time, but also in subjects born after 1968; (iii) full-scale systemic and local immunity to potentially pandemic А (H3N2sw) swine virus was found in the group. Conclusion. In order of proper epidemiological forecasts and planning appropriate preventive measures for potentially pandemic Influenza A viruses, a regular monitoring of collective immunity should be performed using different adaptive markers. In this respect, any conclusion based on molecular analysis only could lead to considerable mistakes, and should be accomplished by the mentioned immunological studies

The epidemiology of traumatic event exposure worldwide: results from the World Mental Health Survey Consortium

Background: Considerable research has documented that exposure to traumatic events has negative effects on physical and mental health. Much less research has examined the predictors of traumatic event exposure. Increased understanding of risk factors for exposure to traumatic events could be of considerable value in targeting preventive interventions and anticipating service needs. Method: General population surveys in 24 countries with a combined sample of 68 894 adult respondents across six continents assessed exposure to 29 traumatic event types. Differences in prevalence were examined with cross-tabulations. Exploratory factor analysis was conducted to determine whether traumatic event types clustered into interpretable factors. Survival analysis was carried out to examine associations of sociodemographic characteristics and prior traumatic events with subsequent exposure. Results: Over 70% of respondents reported a traumatic event; 30.5% were exposed to four or more. Five types – witnessing death or serious injury, the unexpected death of a loved one, being mugged, being in a life-threatening automobile accident, and experiencing a life-threatening illness or injury – accounted for over half of all exposures. Exposure varied by country, sociodemographics and history of prior traumatic events. Being married was the most consistent protective factor. Exposure to interpersonal violence had the strongest associations with subsequent traumatic events. Conclusions: Given the near ubiquity of exposure, limited resources may best be dedicated to those that are more likely to be further exposed such as victims of interpersonal violence. Identifying mechanisms that account for the associations of prior interpersonal violence with subsequent trauma is critical to develop interventions to prevent revictimization

Search for chargino-neutralino production with mass splittings near the electroweak scale in three-lepton final states in √s=13 TeV pp collisions with the ATLAS detector

A search for supersymmetry through the pair production of electroweakinos with mass splittings near the electroweak scale and decaying via on-shell W and Z bosons is presented for a three-lepton final state. The analyzed proton-proton collision data taken at a center-of-mass energy of √s=13  TeV were collected between 2015 and 2018 by the ATLAS experiment at the Large Hadron Collider, corresponding to an integrated luminosity of 139  fb−1. A search, emulating the recursive jigsaw reconstruction technique with easily reproducible laboratory-frame variables, is performed. The two excesses observed in the 2015–2016 data recursive jigsaw analysis in the low-mass three-lepton phase space are reproduced. Results with the full data set are in agreement with the Standard Model expectations. They are interpreted to set exclusion limits at the 95% confidence level on simplified models of chargino-neutralino pair production for masses up to 345 GeV

Measurement of the cross-section and charge asymmetry of WW bosons produced in proton-proton collisions at s=8\sqrt{s}=8 TeV with the ATLAS detector

This paper presents measurements of the $W^+ \rightarrow \mu^+\nu$ and $W^- \rightarrow \mu^-\nu$ cross-sections and the associated charge asymmetry as a function of the absolute pseudorapidity of the decay muon. The data were collected in proton--proton collisions at a centre-of-mass energy of 8 TeV with the ATLAS experiment at the LHC and correspond to a total integrated luminosity of 20.2~\mbox{fb^{-1}}. The precision of the cross-section measurements varies between 0.8% to 1.5% as a function of the pseudorapidity, excluding the 1.9% uncertainty on the integrated luminosity. The charge asymmetry is measured with an uncertainty between 0.002 and 0.003. The results are compared with predictions based on next-to-next-to-leading-order calculations with various parton distribution functions and have the sensitivity to discriminate between them.Comment: 38 pages in total, author list starting page 22, 5 figures, 4 tables, submitted to EPJC. All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/STDM-2017-13