Total Tail Dependence
Mostrando 1-7 de 7 artigos, teses e dissertações.
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1. JOINT MODELING OF FIXED INTEREST RATES LOG-RETURNS BASED ON TAIL DEPENDENCE MEASURES / MODELAGEM DA DISTRIBUIÇÃO CONJUNTA DOS LOG-RETORNOS DE TAXAS DE JUROS PRÉ-FIXADAS A PARTIR DE MEDIDAS DE DEPENDÊNCIA DE CAUDA
Using the concepts of copula we can represent and interpret the dependence structure presented in random vectors with clarity, particularly in bivariate vectors. In bivariate analysis, the role of both heterogeneous tail-dependence coefficient and homogenous tail- dependence coefficient are to study a measure of dependence when variables reach extreme values
Publicado em: 2008
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2. Depolarization-induced slowing of Ca2+ channel deactivation in squid neurons.
Properties of squid giant fiber lobe (GFL) Ca2+ channel deactivation (closing) were studied using whole-cell voltage clamp. Tail currents displayed biexponential decay, and fast and slow components of these tails exhibited similar external Ca(2+)- and voltage-dependence. Both components also shared similar inactivation properties. Increasing duration pulses
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3. Characteristics of multiple Ca(2+)-activated K+ channels in acutely dissociated chick ciliary-ganglion neurones.
1. Whole-cell and single-channel recordings were used to characterize Ca(2+)-activated K+ channels (IK(Ca)) in acutely dissociated chick-ganglion neurones. 2. Application of depolarizing voltage steps resulted in outward currents that could be separated according to their dependence on external Ca2+ and/or holding potential. IK(Ca) was the only outward curre
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4. Two types of potassium currents seen in isolated Necturus enterocytes with the single-electrode voltage-clamp technique.
1. The ionic permeability of Necturus maculosus small intestine epithelial cells was investigated using intracellular microelectrodes to measure membrane potential in intact tissue or by the single-electrode voltage-clamp technique in isolated cells. 2. The basolateral membrane of enterocytes appears to be K+ selective as demonstrated by the dependence of me
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5. The effects of lyotropic anions on charge movement, calcium currents and calcium signals in frog skeletal muscle fibres.
1. Intramembrane charge movement and Ca2+ currents were monitored in voltage-clamped segments of frog skeletal muscle fibres using the triple-Vaseline-gap technique. Calcium signals were measured in current-clamped fibres using either of the indicators Arsenazo III or Antipyrylazo III. 2. Non-linear capacitative currents (charge 1) were obtained using a subt
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6. Acetylcholine activates two currents in guinea-pig outer hair cells.
1. Whole-cell voltage clamp recordings were made from outer hair cells (OHCs) isolated from the basal and middle regions of the cochlea. The current produced when acetylcholine (ACh) was applied to the basal pole was investigated. 2. Acetylcholine (50-70 microM) activated an early inward current followed by a late outward current in most cells at -70 mV. The
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7. Kinetic and pharmacological properties of the M-current in rodent neuroblastoma x glioma hybrid cells.
1. The M-like current IK(M,ng) in differentiated NG108-15 mouse neuroblastoma x rat glioma hybrid cells has been studied using tight-seal, whole-cell patch-clamp recording. 2. When calculated from steady-state current-voltage curves, the conductance underlying IK(M,ng) showed a Boltzmann dependence on voltage with half-activation voltage Vo = -44 mV (in 3 mM