113,517 research outputs found

    Analyticity and uniqueness for the inverse conductivity problem

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    Consideriamo il problema inverso di determinare il coefficiente di conduttività a=1+μXD,DΩ,μ=costantea=1+\mu_{\mathcal{X\mathit{D}}},D\subset\subset\Omega,\mu=\textrm{costante}, nell'equazione ellittica div(au)=0\left(a\nabla u\right)=0 in Ω\Omega, quando siano assegnati dati al bordo sovradeterminati per una soluzione u non banale. Mostriamo che la nonunicità nella determinazione di D implica che una porzione Γ\Gamma di D\partial\textrm{D} è soluzione di un particolare problema di frontiera libera. Dimostriamo alcune proprietà di analiticità di tale frontiera libera e, in conseguenza, otteniamo alcuni risultati di unicità per il problema inverso della conduttività.We treat the inverse problem of the determination of the conductivity coefficient a=1+μXD,DΩ,μ=costanta=1+\mu_{\mathcal{X\mathit{D}}},D\subset\subset\Omega,\mu=\textrm{costant}, in the elliptic equation div(au)=0\left(a\nabla u\right)=0 in Ω\Omega, when overdetermined boundary data for one nontrivial solution u are assigned. We show that nonuniqueness in the detennination of the domain D would imply that a part Γ\Gamma of D\partial\textrm{D} is a solution of a particular free boundary problem. We prove analyticity properties of such a free boundary and, consequently, we derive uniqueness results for the inverse conductivity problem

    Outlooks of therapy for genital herpes

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    Herpesvirus infections are widespread in humans. Approximately 6–10% of adults suffer from genital herpes and 10–20% of them have recurrent disease. Herpesvirus infections (including asymptomatic and silent forms) were found to have a negative effect on human reproductive health. Herpes simplex virus can infect germ cells, impair spermatogenesis, and play a certain pathogenetic role in the development of infertility. Herpes is a serious medical and social problem. Patients with recurrent herpes often have imbalanced immune responses involving interferons and other cytokines, as well as inhibition of cellular and phagocytic reactions of the organism. Meglumine acridone acetate, an interferon inducer, demonstrated high clinical and immunological efficacy in the treatment and prevention of recurrent herpes. The drug can be combined with other medications and is well tolerated by patients

    author-bios-SRD-19-0063.R1 – Supplemental material for The Network Structure of Police Misconduct

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    Supplemental material, author-bios-SRD-19-0063.R1 for The Network Structure of Police Misconduct by George Wood, Daria Roithmayr and Andrew V. Papachristos in Socius</p

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed

    Variations on the Author

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    “Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship

    Universal Signatures of Fractionalized Quantum Critical Points

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    Breaking Up the Indivisible The famous Millikan oil drop experiment demonstrated that electric charge is quantized and cannot be divided into parts smaller than that of an electron. Decades later, the fractional quantum Hall effect was discovered that could only be explained through the existence of quasi-particles of fractional charge. Now, Isakov et al. (p. 193 ) numerically demonstrate the existence of an even more exotic object, a fractionalized quantum critical point (QCP), in the so-called Kagome lattice of bosons. Quantum Monte Carlo simulations were used to measure the critical exponents and revealed the fractionalization by comparison with a QCP of real bosons. </jats:p

    Plasma Physics Reports V. 31, I. 10

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    Plasma Physics Reports -- October 2005 Volume 31, Issue 10, pp. 803-892 TOKAMAKS Electron Density Modulation in Magnetic Islands in the TUMAN-3M Tokamak V. A. Kornev, L. G. Askinazi, M. I. Vil'dzhyunas, V. E. Golant, N. A. Zhubr, S. V. Krikunov, S. V. Lebedev, V. V. Rozhdestvenskii, and A. S. Tukachinskii pp. 803-808 Full Text: PDF (100 kB) MAGNETIC CONFINEMENT SYSTEMS Plasma and Ion Beam Injection into an FRC M. Anderson, M. Binderbauer, V. Bystritskii, E. Garate, N. Rostoker, Y. Song, A. Van Drie, and I. Isakov pp. 809-817 Full Text: PDF (112 kB) PLASMA OSCILLATIONS AND WAVES Slow Plasma Waves in a Fine-Stratified Periodic Semiconductor Structure A. A. Bulgakov and O. V. Shramkova pp. 818-823 Full Text: PDF (261 kB) DUSTY PLASMA Helical Structures in Complex Plasma II: Collective Interaction V. N. Tsytovich and N. G. Gusein-zade pp. 824-842 Full Text: PDF (1826 kB) PLASMA DYNAMICS Formation of a Micropinch and Generation of Multiply Charged Ions at the Front of a Current-Carrying Plasma Jet E. A. Zverev, V. I. Krasov, I. A. Krinberg, and V. L. Papernyi pp. 843-854 Full Text: PDF (242 kB) PLASMA OPTICS Space-Charge Lens for Focusing Negative Ion Beams by Means of an Additional Electron Ionizer V. P. Goretskii, A. M. Zavalov, and I. A. Soloshenko pp. 855-859 Full Text: PDF (64 kB) NONLINEAR PHENOMENA Inertial Alfvén-Wave-Driven Convective Cells in Low-Density Plasmas O. A. Pokhotelov, O. G. Onishchenko, R. Z. Sagdeev, L. Stenflo, and M. A. Balikhin pp. 860-864 Full Text: PDF (74 kB) SPACE PLASMA Dynamics of a Relativistic Electron Beam in the Vicinity of a Spherical Injecting Body in Space Plasma E. K. Kolesnikov pp. 865-870 Full Text: PDF (72 kB) LOW-TEMPERATURE PLASMA Study of the Dark Phase in the Initial Stage of the Positive Column Formation in an Argon Glow Discharge N. A. Dyatko, Yu. Z. Ionikh, A. V. Meshchanov, and A. P. Napartovich pp. 871-885 Full Text: PDF (199 kB) Long-Lived Plasmoids Generated by Surface Microwave Discharges in Chemically Active Gases N. K. Berezhetskaya, S. I. Gritsinin, V. A. Kop'ev, I. A. Kossyi, and D. van Wie pp. 886-890 Full Text: PDF (368 kB) OBITUARY In Memory of Yakov Borisovich Fainberg (September 7, 1918–March 7, 2005) pp. 891-892 Full Text: PDF (146 kB)Archived web conten
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