59 research outputs found

    Low Temperature Properties of Anisotropic Superconductors with Kondo Impurities

    Full text link
    We present a self-consistent theory of superconductors in the presence of Kondo impurities, using large-NN slave-boson methods to treat the impurity dynamics. The technique is tested on the s-wave case and shown to give good results compared to other methods for TK>TcT_K > T_c. We calculate low temperature thermodynamic and transport properties for various superconducting states, including isotropic s-wave and representative anisotropic model states with line and point nodes on the Fermi surface.Comment: 21 pages, RevTeX 3.0, 12 figures available upon request, UF preprin

    The major histocompatibility complex-restricted antigen receptor on T cells: the genetics of expression of an allotype.

    No full text
    The monoclonal antibody KJ16-133 binds an allelic determinant expressed on the antigen-specific, major histocompatibility complex (MHC)-restricted receptors on approximately 20% of T cells in most mouse strains. The locus controlling the presence or absence of the determinant mapped 9.8 +/- 2.2 centimorgans f}irom the Igk/Ly-2 locus on chromosome 6 in mice, and may be the beta-chain locus. Other genetic loci were identified that controlled the frequency of cells that expressed the allele in positive mice. One of these was the MHC itself, which may control expression of the beta-chain allele by controlling T cell repertoire. The identity of the other, as yet unmapped locus is unknown. KJ16-133 was used to show that T cell receptor gene products are expressed in a manner consistent with allelic exclusion

    Utility of the routine chest X-ray after over-wire venous catheter changes.

    No full text
    The Seldinger technique is commonly used to change central venous access catheters in the Intensive Care Unit. These catheters are routinely being changed to prevent septic complications. Some of these changes are performed by an over-wire technique. To assess the utility of postprocedural chest X-rays on critically ill patients after an over-wire catheter change, we followed 68 patients after they had 80 catheter changes. This study assesses catheter position by use of a postprocedural X-ray. During the study, we found no misplaced catheters and minimum symptomatology in 80 patients. The trauma/critical care fellows performing the procedures rated them as easy in 97.5 percent of the changes. The conclusion of the study is that, if the catheter change is technically easy and the patient has no symptoms, a postprocedural X-ray is not necessary
    corecore