Direct volume-rendering has proven to be an effective and flexible visualization method for 3D scalar fields. Transfer functions are fundamental to direct volume-rendering because their role is essentially to make the data visible: by assigning optical properties like color and opacity to the voxel data, the volume can be rendered with traditional computer graphics methods. Good transfer functi...

We analyzed the power density spectra of a sample of neutron star and black hole binaries at the low/hard spectral state. In the power density spectra of accreting neutron stars with a weak magnetic field a significant power is contained at frequencies close to kHz. At the same time, most Galactic accreting black holes demonstrate a strong decline in the power spectra at the frequencies higher ...

Abstract 1D velocity profiles at a strong motion station in the northern part of Kumamoto plain, Japan, were submitted Step-1 blind prediction exercise ground motions sixth international symposium on effects surface geology seismic (ESG6). Individual participants requested to estimate S-wave profile sedimentary layers from given data obtained by microtremor array explorations and surface-wave s...

The cardiac refractory period prevents the heart from tetanic activation that is typically used in noncardiac striated muscle tissue. To what extent the refractory period prevents successive action potentials to activate the excitation-contraction coupling process and contractile machinery at supra-physiological rates, such as those present during ventricular fibrillation, is unknown. Using mul...

the study of stability problems of functional equations was motivated by a question of s.m. ulam asked in 1940. the first result giving answer to this question is due to d.h. hyers. subsequently, his result was extended and generalized in several ways.we prove some hyperstability results for the equation g(ax+by)+g(cx+dy)=ag(x)+bg(y)on restricted domain. namely, we show, under some weak natural...

electromagnetic field (emf) radiation affects cellular and brain chemistry and function, resulting in deleterious effects such as free radicals formation, impaired dna repair, reduced melatonin and blood brain barrier protection, and defects on learning and memory and other higher brain functions. in this paper the effects of low frequency emf of 50- and 217 hz, ranges often associated with com...

Auditory brainstem response (ABR) techniques, an electrophysiological far-®eld recording method widely used in clinical evaluation of human hearing, were adapted for ®shes to overcome the major limitations of traditional behavioral and electrophysiological methods (e.g., invasive surgery, lengthy training of ®shes, etc.) used for ®sh hearing research. Responses to clicks and tone bursts of di€e...

The aim of this study was to investigate the influence of the mean level and phasic modulation of NO on the dynamic autoregulation of renal blood flow (RBF). Transfer functions were calculated from spontaneous fluctuations of RBF and arterial pressure (AP) in conscious resting dogs for 2 h under control conditions, after NO synthase (NOS) inhibition [ N G-nitro-l-arginine methyl ester hydrochlo...