Young (or Parametrized) measures have been introduced in optimal control theory by L. C. Young [39] to study non convex variational problems for which there were no classical solution, and to provide an effective notion of generalized solution for problems in Calculus of Variations. Starting with the works of Tartar [35] on hyperbolic conservation laws, Young measures have been an important too...

Young African-American men have altered macrovascular and microvascular function. In this cross-sectional study, we tested the hypothesis that vascular dysfunction in young African-American men would contribute to greater central blood pressure (BP) compared with young white men. Fifty-five young (23 yr), healthy men (25 African-American and 30 white) underwent measures of vascular structure an...

We address the partial wetting of liquid drops on ultrathin solid sheets resting on a deformable foundation. Considering the membrane limit of sheets that can relax compression through wrinkling at negligible energetic cost, we revisit the classical theory for the contact of liquid drops on solids. Our calculations and experiments show that the liquid-solid-vapor contact angle is modified from ...

Studies of the physical characteristics of large arteries (Roy, 1880; Bramwell, 1924; Hallock and Benson 1937) have shown that the aorta is more elastic in the young than in the elderly. As age advances the great vessels dilate while their distensibility diminishes and the range of pressure over which the wall is approximately elastic is reduced. These changes are the result of the tension in t...

We study the instability to necking of an initially cylindrical filament of soft glassy material subject to extensional stretching. By numerical simulation of the soft glassy rheology model and a simplified fluidity model, and by analytical predictions within a highly generic toy description, we show that the mode of instability is set by the age of the sample relative to the inverse of the app...

A variational discrete element method is applied to simulate quasi-static crack propagation. Cracks are considered propagate between the mesh cells through facets. The elastic behaviour parametrized by continuous mechanical parameters (Young modulus and Poisson ratio). energetic cracking criterion coupled a kinking guide process. Two-dimensional numerical examples presented illustrate robustnes...

background: common carotid arterial stiffness can be assessed during carotid arterial ultrasonography, but its association with brachial stiffness, a well-defined cardiovascular risk factor, has not been clarified. the aim of this study was to examine the relationship between common carotid artery and brachial artery stiffness. methods: the static pressure-strain elastic modulus of the common c...

A theoretical study of structural, electronic, elastic and optical properties of zinc-blende BeS under hydrostatic pressure is presented using ab-initio plane wave pseudopotential density functional theory method within the local density approximation (LDA) and generalized gradient approximation (GGA) .The dependencies of the elastic constants, the bulk modulus, young modulus and energy gaps on...

Objectives: While it has been suggested that resistance training may have a beneficial effect on psychological health in young people, evidence supporting this assertion is limited. The primary aim of this study was to explore the effect of free weights and elastic tubing resistance training on physical selfperception in adolescents. Design: Randomized controlled trial. Method: Participants (N1...