INTRODUCTION Functional mitral regurgitation (FMR) is a common complication in patients with ischaemic (ICM) or idiopathic dilated cardiomyopathy (DCM), as a consequence of left ventricular (LV) remodelling. The aim of this study was to elucidate the differences in FMR between patients with ICM and DCM utilising conventional and tissue Doppler echocardiography. METHODS We studied 21 patients ...

Analysis of several independent tests of iris recognition performance reveals a fundamental and recurring feature of this technology: the flatness of the ROC or DET curves. Typically the FMR can be changed by a factor of 10,000 to 1 as the threshold is varied over a narrow range, while the corresponding FnMR changes by only a factor of 2 or 3. It is therefore misleading, arbitrary, and contrive...

A frequency-tunable low phase noise magneto-acoustic resonator is developed on the base of a parallel-plate straight-edge bilayer consisting yttrium-iron garnet (YIG) layer grown substrate gallium-gadolinium garnet(GGG). When YIG/GGG sample forms an ideal parallel plate, it supports series high-quality-factor acoustic modes standing along plate thickness. Due to magnetostriction YIG ferromagnet...

It is proposed that ferromagnetic resonance (FMR) of thin-film ferrites can be utilized to simultaneously improve the radiation efficiency and input impedance matching electrically small antennas (ESAs). To validate concept, role FMR in first derived analytically with an ideal ferrite radiator. was concluded Gilbert damping ferrite, determining quality factor FMR, directly impacts on antenna. A...

Generating perfect samples from distributions using Markov chains has a wide range of applications , from statistical physics to approximation algorithms. In perfect sampling algorithms, a sample is drawn exactly from the stationary distribution of a chain, as opposed to methods that run the chain \for a long time" and create samples drawn from a distribution that is close to the stationary dis...

Hybridizing collective spin excitations and a cavity with high cooperativity provides a new research subject in the field of cavity quantum electrodynamics and can also have potential applications to quantum information. Here we report an experimental study of cavity quantum electrodynamics with ferromagnetic magnons in a small yttrium-iron-garnet (YIG) sphere at both cryogenic and room tempera...

Biogenic magnetic minerals produced by magnetotactic bacteria occur ubiquitously in natural aquatic environments. Their identification and characterization are important for interpretation of paleomagnetic and environmental magnetic records. We compare two magnetic methods for their identification and characterization in a diverse set of sedimentary environments: ferromagnetic resonance (FMR) s...

We report mechanical detection of ferromagnetic resonance ~FMR! signals from microscopic Co single layer thin films using a magnetic resonance force microscope ~MRFM!. Variations in the magnetic anisotropy field and the inhomogeneity of were clearly observed in the FMR spectra of microscopic Co thin films 500 and 1000 Å thick and ;403200 mm in lateral extent. This demonstrates the important pot...

Time-resolved scanning Kerr microscopy has been used to perform optically detected, phase-resolved spin–orbit torque ferromagnetic resonance (SOT-FMR) measurements on a microscale CoFeB ellipse at the center of Pt Hall cross subject RF and DC current. polar images revealed localized dynamics with large amplitude weaker edges. Therefore, field swept SOT-FMR spectra were acquired from so-called m...

The field metabolic rate (FMR) of a free-ranging animal can be considered as the sum of its maintenance costs (minimum metabolic rate, MMR) and additional costs associated with thermoregulation, digestion, production and activity. However, the relationships between FMR and BMR and how they relate to behaviour and extrinsic influences is not clear. In seabirds, FMR has been shown to increase dur...