Various types of waves are produced when a harmonic force is applied to a semi-infinite half space elastic medium. In particular, surface waves are perturbations with transverse and longitudinal components of displacement that propagate in the boundary region at the surface of the elastic solid. Shear wave speed estimation is the standard for characterizing elastic properties of tissue in elast...

OBJECTIVES Limited data are available regarding the predictive value of electrocardiographic T wave inversion in lead aVL for mid-segment left anterior descending (MLAD) lesions among patients with acute coronary syndrome (ACS). SETTING Retrospective single-centre study, using a prospectively-collected coronary angiography database from January 2012 to December 2013. PARTICIPANTS We include...

In this paper, a problem on Rayleigh surface wave in an isotropic micropolar elastic solid half-space with impedance boundary conditions is investigated. It is assumed that the normal force traction, shear force traction and shear couple traction vary linearly with the normal displacement component, tangential displacement component and microrotation component multiplied by the frequency, where...

The asymptotic behaviour, with respect to the large order, of radii starlikeness two types normalised Bessel functions is considered. We derive complete expansions for and provide recurrence relations coefficients these expansions. proofs rely on notion Rayleigh sums inversion. techniques employed in paper could be useful treat similar problems where inversion involved.

BACKGROUND The 12-lead electrocardiogram (ECG) has relatively poor specificity for identifying acute pulmonary embolism (APE). The aim of this study was to investigate ECG abnormalities according to 2 different criteria and their usefulness for assessing changes in APE. METHODS AND RESULTS Fifty-two APE patients underwent ECG examinations in the acute and chronic phases. ECG abnormalities wer...

Long-wave models obtained in the process of asymptotic homogenisation of structures with a characteristic length scale are known to be non-unique. The term nonuniqueness is used here in the sense that various homogenisation strategies may lead to distinct governing equations that usually, for a given order of the governing equation, approximate the original problem with the same asymptotic accu...