We here describe intercellular calcium waves as a novel form of cellular communication among thymic epithelial cells. We first characterized the mechanical induction of intercellular calcium waves in different thymic epithelial cell preparations: cortical 1-4C18 and medullary 3-10 thymic epithelial cell lines and primary cultures of thymic "nurse" cells. All thymic epithelial preparations respo...

In children, adolescents and young men, the amplitude-frequency characteristics of evoked potentials (EP) brain speed qualitative response to choice one three (RC1-3) signals were studied. It was found that formation sensorimotor reactions in men is characterized by a gradual decrease number errors an increase RC1-3, as well latencies amplitude P300 VP wave, which reach highest level 18-20 year...

The P2– F2 pairing model is generally considered to provide an adequate description of the superfluid states of neutron matter at densities some 2-3 times that of saturated symmetrical nuclear matter. The problem of solving the system of BCS gap equations expressing the P2– F2 model is attacked with the aid of the separation approach. This method, developed originally for quantitative study of ...

OBJECTIVE As the need for objective measures with cochlear implant users increases, it is critical to understand how electrical potentials behave when stimulus parameters are systematically varied. The purpose of this study was to record and evaluate the effects of implanted electrode site and stimulus current level on latency, amplitude, and threshold measures of electrically evoked auditory p...

An approximate inverse scattering method [5, 6] has been used to construct separable potentials with the Laguerre form factors. As an application, we invert the phase shifts of proton-proton in the S0 and P2 − 3 F2 channels and neutron-proton in the S1 − 3 D1 channel elastic scattering. In the latter case the deuteron wave function of a realistic np potential was used as input.

An approximate inverse scattering method [7, 8] has been used to construct separable potentials with the Laguerre form factors. As an application, we invert the phase shifts of proton-proton in the S0 and P2 − 3 F2 channels and neutron-proton in the S1 − 3 D1 channel elastic scattering. In the latter case the deuteron wave function of a realistic np potential was used as input.

In a recent study of the pathophysiology of mild, blast-induced traumatic brain injury (bTBI) the exposure of dissociated, central nervous system (CNS) cells to simulated blast resulted in propagating waves of elevated intracellular Ca(2+). Here we show, in dissociated human CNS cultures, that these calcium waves primarily propagate through astrocyte-dependent, purinergic signaling pathways tha...

We introduce a new mixed discontinuous/continuous Galerkin finite element for solving the 2and 3-dimensional wave equations and equations of incompressible flow. The element, which we refer to as P1DG-P2, uses discontinuous piecewise linear functions for velocity and continuous piecewise quadratic functions for pressure. The aim of introducing the mixed formulation is to produce a new flexible ...

The His bundle electrogram was recorded in I9 cases with P mitrale simultaneously with standard lead II, and compared with 30 cases with normal P waves. Internodal conduction time (P1A) interval did not differ in P mitralefrom the controlgroup, confirming that prolonged atrial activation in P mitrale represents a specific 'left atrial block'. The importance of this observation is discussed with...