19 research outputs found

    CALCULATION OF THE D AND B MESON LIFETIMES AND THE UNITARITY TRIANGLE PARAMETERS

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    Using the expansions of the heavy meson decay widths in the heavy quark mass and QCD sum rules for estimates of corresponding matrix elements,\, we calculate the D±,o,sD^{\pm,o,s} and B±,o,sB^{\pm,o,s} meson lifetimes. The results for D mesons are in a reasonable agreement with the data,\, while it is predicted: [\Gamma (B_d)-\Gamma (B^\pm)]/\Gamma_B\se 4\%\, (and the lifetime difference of the BdB_d and BsB_s mesons is even smaller);\, [\Gamma(B_s^{short})-\Gamma(B_s^{long})]/{\ov \Gamma}(B_s)\se 8\%\,. The role of the weak annihilation and Pauli interference contributions to the lifetime differences is described in detail. In the course of self-consistent calculations the values of many parameters crucial for calculations with charmed and beauty mesons are found. In particular,\, the quark pole masses are: M_c\se 1.65\,GeV,\,\, M_b\se 5.04\,GeV\,, and the decay constants are: f_D(M_c)\se 165\,MeV\,,\,\,f_B(M_b)\se 120\,MeV\,. It is also shown that the nonfactorizable corrections to the BBˉB-{\bar B} mixing are large,\, B_B(M_b)\se (1-18\%)\,. The values of the unitarity triangle parameters are found which are consistent with these results and the data available (except for the NA31 result for the ϵ/ϵ\epsilon ^{\prime}/\epsilon which is too large): |V_{cb}|\se 4.2\cdot 10^{-2}\,,\, |V_{td}|\se 1.3\cdot 10^{-2}\,,\, |V_{ub}/V_{cb}|\se 0.10\,,\, \{\,A\se 0.86\,,\,\,\rho \se -0.40\,,\,\, \eta \se 0.20\,\}.Comment: small improvements in the text and Table 2, Latex, 18 page

    Features and Outcomes of 899 Patients With Drug-Induced Liver Injury: The DILIN Prospective Study

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    The drug-induced liver injury network (DILIN) is conducting a prospective study of patients with DILI in the United States. We present characteristics and subgroup analyses from the first 1257 patients enrolled in the study

    Self-mutilation associated with dissociative disorders

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    p. 081-087The incidence of self-mutilation is high among patients with eating disorders, antisocial personality disorder, and borderline personality disorder. To determine the incidence of self-mutilation among patients with dissociative disorders, the first one hundred consecutive adult dissociative disorder patients who were enrolled in a dissociative disorders clinic were evaluated for self-mutilation. Self-mutilation was a common occurrence among patients with multiple personality disorder (48%), psychogenic amnesia (29%), and dissociative disorder not otherwise specified (23 %). Often the patients were amnesic for the self-mutilation. The occurrence of amnesia or persistent denial of self-injury in anyone who engages in self-mutilation makes it imperative that they be screened carefully for evidence of dissociation. Four case histories are described and illustrated with photographs

    Factitious or malingered multiple personality disorder: eleven cases

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    p. 081-085Of 112 consecutive admissions to a dissociative disorders clinic, 10% of patients with symptoms characteristic of MPD ultimately were discovered to have factitious disorder or were malingering. They were compared with 50 MPD patients previously reported. There were few differences in demographic variables, presenting symptoms, or characteristics of alter personalities between the groups. The use of electroencephalograms and the Minnesota Multiphasic Personality Inventory was not helpful in differentiating the two groups. There was a striking difference, however, between genuine MPD and simulators for the presence of symptoms characteristic of either malingering or factitious disorder. Although some cases of simulated MPD are easy to discern, others may be extremely difficult, even for the experienced clinician. The use of collateral interviews and probing for symptoms common to factitious disorder and malingering are invaluable aids in the differential diagnosis of genuine from simulated MPD

    The cross-cultural occurrence of MPD: additional cases from a recent survey

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    p. 124-128Multiple personality disorder (MPD) has been described as a culture-bound phenomenon, primarily indigenous to the United States. In order to test this hypothesis, we performed an extensive literature search and developed an MPD questionnaire which was mailed to 132 individuals outside of North America. The literature search found case-reports in thirteen other countries in addition to the United States and Canada. Data from the questionnaire revealed the existence of MPD in an additional six countries. Altogether thirty-two new cases of MPD were reported in nine countries and the territory of Puerto Rico. The symptomatology of these new cases was remarkably similar to that of the cases previously reported in North America. Several new cases of DDNOS are described. We conclude that MPD is definitely not a culture-bound phenomenon and that it probably has a worldwide distribution

    Double concerto en la mineur, op. 102 / Johannes Brahms ; Nathan Milstein, vl ; Gregor Piatigorsky, vlc ; RCA Victor Symphony Orchestra ; Fritz Reiner, dir.

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    Titre uniforme : Brahms, Johannes (1833-1897). Compositeur. [Concertos. Violon, violoncelle, orchestre. Op. 102. La mineur]BnF-Partenariats, Collection sonore - BelieveContient une table des matière
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