Pulsed field gel electrophoresis (PFGE) analysis of SmaI restriction patterns was used to type 109 isolates of Staphylococcus aureus collected from broiler farms and hatcheries in Northern Ireland. Forty-seven isolates from clinical conditions in broilers and 62 strains from hatcheries, were examined. The PFGE patterns demonstrated a similarity between 85% of strains from clinical sources and 71% of the hatchery isolates. The association of disease with the predominant strain type and presence of these same strains in the hatchery, indicates that the hatchery is a potential source of the infection for clinical broiler disease.
We propose a feasible and efficient scheme to generate $N$-atom $W$-class
States in spatially separated cavities without using any classical driving
Pulses. We adopt the model in which the couplings between different atoms are
Mediated only by virtual excitations of the cavity and fiber fields, so t...
We calculate the
Ellipticity of a non-barotropic neutron star with (i) a quadrupole
Poloidal-toroidal field, and (ii) a purely poloidal field containing arbitrary
Multipoles, deriving the relation between the ellipticity and the multipole
Amplitudes. We present, as a worked example, a purely poloida...
The kinetic theory of switching processes in crystalline ferroelectric
materials under the influence of a variable external electric field is
formulated. The basic equations are derived and their exact analytical solution
at arbitrary time-dependent external field are obtained. Connection between t...
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