The cohorting of patients with dedicated staff, combined with implementation of focused active surveillance, effectively terminated the epidemic spread of CRKP. Cohorting reduced cross-infection within the hospital, and active surveillance allowed for earlier detection of carrier status. Both interventions should be considered in attempts to contain a hospital epidemic.
This study suggests that propofol should be considered for induction of anesthesia in patients, particularly those with asthma, who require timely intubation.
Abstract. -We investigate a model of a single resonant level coupled to the edge of a quantum wire in the Luttinger liquid phase or to the middle of a chiral Luttinger liquid via both tunneling and a contact interaction. Utilizing the Yuval-Anderson approach, we map this model onto a classical 1D Coulomb gas in which all the details of both the interactions in the lead and the levellead interaction enter only through the corresponding Fermi-edge singularity exponent, which we explicitly evaluate using the Bethe ansatz solution for a particular model of the lead. Thus the population, dynamical capacitance and level entropy are universal in the sense of being equal for models with interactions differing in magnitude and even in sign. We demonstrate this to hold quantitatively using density matrix renormalization group calculations. Since the Coulomb gas description is of the single channel Kondo type, we infer that the universality we found implies that Luttinger liquid physics has no qualitative effect on these properties, in contrast with perturbative results.Introduction. -Understanding the properties of strongly correlated systems has been one of the main fields of investigation in condensed matter physics in recent years. An important class of such problems is that of quantum impurities, i.e., systems with a finite number of degrees of freedom coupled to reservoirs of noninteracting particles, the best known examples of which are the Kondo and Anderson models [1] and the spinboson model [2]. Another important type, for which non Fermi liquid physics is well established, is that of one dimensional electronic systems. When no symmetry is spontaneously broken, the low energy physics of those systems is described by the Luttinger liquid (LL) theory, where the quasiparticles are bosonic modes of density (or, in a dual description, phase) fluctuations [3]. It is then natural to try to bring these two themes together, by studying quantum impurities coupled to LLs: from the quantum impurity perspective, the reservoir now has a non-trivial physics of its own; from the LL point of view, this gives a way to probe the intricate physics of the electrons which are coupled to the impurity (and not the relatively simple behavior of the weakly-interacting bosons). Besides these fundamental motivations, quantum impurities (e.g.,
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