conclusions it appears that the patient-caregiver education and follow-up program had a beneficial effect on the caregiver strain index compared to the usual care. results the caregiver strain index decreased significantly in the intervention group after the patient-caregiver education and follow-up (p < 0.001), while the control group’s scores did not change (p = 0.04). background in recent ye...

We hypothesize that application of an unopposed quadriceps force coupled with an impulsive ground reaction force may induce anterior cruciate ligament (ACL) injury. This situation is similar to landing from a jump if only the quadriceps muscle is active; an unlikely but presumably dangerous circumstance. The purpose of this study was to test our hypothesis using in vitro simulation of jump land...

Syntactic foam is increasingly used in engineering applications. This paper studies the dynamic mechanical properties and failure of syntactic foam, with emphasis on influence pre-strain embedded collapsed microballons. The epoxy (ESF) different levels successfully produced using a confinement sleeve technique. initial pre-strained ESF are tested compared from quasi-static to high strain rates ...

While the effect of normal compression on the measured shear material properties of viscoelastic solids has been already acknowledged in rheological studies in the literature, to our knowledge, no systematic study has been conducted to investigate this effect in detail to date. In this study, we perform two sets of experiments to investigate the effect of normal strain and strain rate on the dy...

analysis and prediction of structural response to static or dynamic loading requires prediction of concrete response tovariable load histories. the constitutive equations for the mechanical behavior of concrete capable of seeing damage effects or crack growth procedure under loading/unloading/reloading was developed upon micro-plane framework. the proposed damage formulation has been built on t...

BACKGROUND Strain analysis is feasible using three-dimensional (3D) echocardiography. This approach provides various parameters based on speckle tracking analysis from one full-volume image of the left ventricle; however, evidence for its volume independence is still lacking. METHODS Fifty-eight subjects who were examined by transthoracic echocardiography immediately before and after hemodial...

Abstract The present study evaluates the fatigue and fracture performance of electropolished Nitinol wire apex specimens subjected to a range initial bending crimp/pre-strains determine how behavior may be modified by compressive strains residual stress. Three extrados (tensile) crimp/pre-strain conditions (8, 12, 14.5%) were investigated. Specimens cycled in unidirectional up 10 7 cycles at 37...