SUMMARY Fractures are ubiquitous in Earth’s upper crust and strongly affect its physical properties. Their visibility for elastic waves hinges on their stiffness, a measure of the relation between changes fracture aperture applied stress, which itself significantly increases with increasing stress according to laboratory data. We constrained normal stiffness (and dependence) two fractures inter...

OBJECTIVE The purpose of this study was to assess the incidence, risk factors, and clinical manifestations of spinal cord ischemia (SCI) after thoracic endovascular aortic repair (TEVAR). METHODS A retrospective review of a prospectively collected database was performed for all patients undergoing TEVAR at a single academic institution between July 2002 and June 2010. Preoperative demographic...

IN THIS issue of the Journal Cardiothoracic and Vascular Anesthesia, Dietrich et al. presented an E-Challenge a patient with progressive dyspnea elevated mean transvalvular gradient one year after aortic valve replacement despite normal leaflet motion.1Dietrich M Mankad R. Elevated prosthetic gradients: What to consider when determining etiology.J Cardiothorac Vasc Anesth. 2021; 35: 2223-2227Ab...

One of the bellows producing method is hydroforming process .Whereas some factor of hydroforming process specially internal pressure affects on final characteristics produced bellows such as bursting, wrinkling and wall thickness distribution. In this paper the effect of internal pressure factor in final quality of produced bellows will be investigated. In simulation of process, ABAQUS/Explicit...

Stem cell treatment may positively influence recovery and inflammation after shock by multiple mechanisms, including the paracrine release of protective growth factors. Embryonic stem cells (ESCs) are understudied and may have greater protective power than adult bone marrow stem cells (BMSCs). We hypothesized that ESC paracrine protective mechanisms in the heart (decreased injury by enhanced gr...