[The organisation of outpatient medical and nursing clinics for the follow-up of patients after hospitalization for a myocardial infarction or heart failure].

Unlabelled: . The organisation of outpatient medical and nursing clinics for the follow-up of patients after hospitalization for a myocardial infarction or heart failure.

Introduction: Guidelines suggest careful monitoring of patients after acute heart failure (AHF) or acute myocardial infarction (AMI).

Spurious Symmetry Enhancement in Linear Spin Wave Theory and Interaction-Induced Topology in Magnons.

Linear spin wave theory (LSWT) is the standard technique to compute the spectra of magnetic excitations in quantum materials. In this Letter, we show that LSWT, even under ordinary circumstances, may fail to implement the symmetries of the underlying ordered magnetic Hamiltonian leading to spurious degeneracies. In common with pseudo-Goldstone modes in cases of quantum order by disorder these degeneracies tend to be lifted by magnon-magnon interactions.

Identifying and Constructing Complex Magnon Band Topology.

Magnetically ordered materials tend to support bands of coherent propagating spin wave, or magnon, excitations. Topologically protected surface states of magnons offer a new path toward coherent spin transport for spintronics applications. In this work we explore the variety of topological magnon band structures and provide insight into how to efficiently identify topological magnon bands in materials.

Magnon Interference Tunneling Spectroscopy as a Probe of 2D Magnetism.

Probing two-dimensional single-layer quantum magnets remains a significant challenge. In this Letter, we propose exploiting tunneling spectroscopy in the presence of magnetic impurities to obtain information about the magnon dispersion relations in analogy to quasiparticle interference in nonmagnetic materials. We show that this technique can be used to establish the dispersion relations even for frustrated magnets, where the presence of an impurity generally leads to a nontrivial spin texture.

Transthoracic bioimpedance and brain natriuretic peptide assessment for prognostic stratification of outpatients with chronic systolic heart failure.

Background: In patients with chronic heart failure, physical evaluation and clinical judgment may be inadequate for prognostic stratification.

Hypothesis: Information obtained with simple bedside tests would be helpful in patient management.

Methods: We report on 142 outpatients with systolic heart failure seen at our heart failure unit from 2007 to 2010 (ages 69.