A Call Admission Control (CAC) scheme for downlink multimedia service in WCDMA system is proposed in this paper. The admission control based on instantaneous measurements may cause capacity loss and degrade in Quality of Service (QoS) because of abrupt uctuation of the power level at Base Station (BS). Both the average power level of real-time circuit services and average queue size of non-real...

BACKGROUND/AIMS Oligomerization of amyloid beta (Aβ) is a hypothesized step in the formation of plaques in Alzheimer's disease (AD) but has been difficult to demonstrate in vivo in humans. As persons destined to develop familial AD (FAD) due to fully penetrant autosomal dominant mutations are essentially certain to develop the disease, they provide the opportunity to identify oligomers during t...

OBJECTIVE This study's aims are to identify whether or not a relationship between statin use and rate of cognitive decline exists. BACKGROUND The relationship between statins and MCI has been investigated in the past with the evidence showing mixed results. METHODS 768 subjects were identified with MCI. Subjects were stratified into 6 possible groups according to ApoE4 status and statin use...

AIMS The risk stratification of patients for heart failure (HF) remains a challenge, as well as the anticipation of the response to β-blocker therapy. Since the pivotal role of β1 adrenergic receptor (β1-AR) in HF, many publications have studied the associations between the β1-AR polymorphisms (Ser49Gly and Arg389Gly) and HF, with inconsistent results. Thus, we performed a meta-analysis of stud...

A complete catalogue of galaxy cluster models can be used to constrain cosmological parameters like 8 , the amplitude of the initial density uctuation spectrum. We focus here on two strong lensing statistics for clusters of galaxies: the fraction of rich Abell clusters that are critical to lensing, and the abundance of arcs in such clusters, especially the X-ray luminous ones. The speciic aim o...

The Eulerian mapping closure approach is developed for uncertainty propagation in computational uid mechanics. The approach is used to study the Probability Density Function (PDF) for the concentration of species advected by a random shear ow. An analytical argument shows that uctuation of the concentration eld at one point in space is non-Gaussian and exhibits stretched exponential form. An Eu...

By using a simple model of soliton±antisoliton pairs to simulate the quantum lattice ̄uctuations in one-dimensional conjugated polymers, the subgap optical absorption results from the transitions between the lowest unoccupied and the highest occupied levels off the conduction and valence bands, respectively, in the soliton±antisoliton excitations. There is no gap in the absorption induced by th...

Mechanisms for the deposition of heat in the lower coronal plasma are discussed, emphasizing recent attempts to reconcile the uid and kinetic perspectives. Structures at the MHD scales are believed to act as reservoirs for uctuation energy, which in turn drive a nonlinear cascade process. Kinetic processes act at smaller spatial scales and more rapid time scales. Cascade-driven processes are co...

This paper describes about a new method for reconstructing a shape of a skin surface replica from three shading images taken with three di erent lightings. Since the shading images include shadows caused by surface height uctuation, the conventional photometric stereo method is not suitable for reconstructing its surface shape. In the proposed method, the evaluation function of the surface shap...

des erreurs de frannais (ce qui est fort improbable), priire de prendre directement contact avec lui. Avertissement: ce paragraphe ne peut tre entiirement apprrcii que par J-C. Bolot et l'auteur :-) 6 Abstract Real-time multimedia applications require resource allocation because of their quality of service (QoS) requirements. On the other hand, network eeciency depends crucially on the degree o...