4,570 research outputs found

    A note on the (1, 1,..., 1) monopole metric

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    Recently K. Lee, E.J. Weinberg and P. Yi in CU-TP-739, hep-th/9602167, calculated the asymptotic metric on the moduli space of (1, 1, ..., 1) BPS monopoles and conjectured that it was globally exact. I lend support to this conjecture by showing that the metric on the corresponding space of Nahm data is the same as the metric they calculate.Comment: 12 pages, latex, no figures, uses amsmath, amsthm, amsfont

    Development and use of an extensometer for determining the mechanical compliance of crack toughness test specimens

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    Extensometer for determining mechanical compliance of crack toughness test specimen

    Measurement of neutron spectra in liquid hydrogen final report

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    Neutron spectrum measurement in liquid hydrogen and wate

    Gamma and neutron dose measurements for a thermal tungsten nuclear rocket critical experiment

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    Measurements of gamma and neutron dose distributions in core of thermal tungsten nuclear rocket experimen

    The molecular cloning and characterisation of cDNA coding for the alpha subunit of the acetylcholine receptor

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    The published version of this article is available at Oxford Journals in Nucleic Acids Research at http://nar.oxfordjournals.org/content/10/19/5809.full.pdf+htmlA rare cDNA coding for most of the α subunit of the Torpedo nicotinic acetylcholine receptor has been cloned into bacteria. The use of a mismatched oligonucleotide primer of reverse transcriptase facilitated the design of an efficient, specific probe for recombinant bacteria. DNA sequence analysis has enabled the elucidation of a large part of the polypeptide primary sequence which is discussed in relation to its acetylcholine binding activity and the location of receptor within the plasma membrane. When used as a radioactive probe, the cloned cDNA binds specifically to a single Torpedo mRNA species of about 2350 nucleotides in length but fails to show significant cross-hybridisation with a subunit mRNA extracted from cat muscle

    Hall Effect in the mixed state of moderately clean superconductors

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    The Hall conductivity in the mixed state of a clean (l≫ξ0l \gg \xi_0) type-II s-wave superconductor is determined from a microscopic calculation within a quasiclassical approximation. We find that below the superconducting transition the contribution to the transverse conductivity due to dynamical fluctuations of the order parameter is compensated by the modification of the quasiparticle contribution. In this regime the nonlinear behaviour of the Hall angle is governed by the change in the effective quasiparticle scattering rate due to the reduction in the density of states at the Fermi level. The connection with experimental results is discussed
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