A New Look on Financial Markets Co-Movement through Cooperative Dynamics in Many-Body Physics.

One of the main contributions of the Capital Assets Pricing Model (CAPM) to portfolio theory was to explain the correlation between assets through its relationship with the market index. According to this approach, the market index is expected to explain the co-movement between two different stocks to a great extent. In this paper, we try to verify this hypothesis using a sample of 3.

Characterization of a Vascular Endothelial Growth Factor-loaded Bioresorbable Delivery System for Pulp Regeneration.

Introduction: Vascular endothelial growth factor (VEGF) is a signal protein that stimulates angiogenesis and vasculogenesis and has been used in tissue regeneration and pulp regeneration experimental models. The purpose of this study was to develop a delivery system composed of a biodegradable fiber and controlled release of VEGF to promote cell viability and secure an adequate blood supply for the survival of human stem cells of the apical papilla (SCAP) favoring endodontic regenerative procedures.

Methods: We developed a polydioxanone fiber, 50 μm in diameter, loaded with VEGF at a linear concentration of 12.

Bladder pheochromocytoma: case presentation and the use of OctreoScan for localization of extra-adrenal tumor sites in a pediatric patient.

An eleven year old boy presented with headaches and dizziness associated to micturition. On radiologic imaging, he was found with a bladder mass. The biochemical work up was suggestive of pheochromocytoma.

Estimation of dynamic elastic constants from the amplitude and velocity of Rayleigh waves.

In this paper a method is proposed to characterize the elasticity of isotropic linear materials from the generation and detection of an acoustic surface wave. For the calculation of the elastic constants, it is sufficient that only one of the faces of the sample be accessible. The methodology is based on both the measurement of the Rayleigh wave velocity and on the determination of the normal to longitudinal amplitude ratio calculated from the normal and longitudinal components of the displacement of a point.