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Article
On parameter estimation of Heston’s stochastic volatility model: a polynomial filtering method
In this paper, we investigate the problem of estimating the volatility from the underlying asset price for discrete-time observations. This topic has attracted much research interest due to the key role of the...
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Article
High mobility group box 1 is a novel substrate of dipeptidyl peptidase-IV
High mobility group box 1 (HMGB1) is a cytokine with a key role in tissue regeneration and angiogenesis. Previous studies have shown that topical application of HMGB1 to skin wounds of mouse models of diabetes...
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Article
Hypoxia increases Sca-1/CD44 co-expression in murine mesenchymal stem cells and enhances their adipogenic differentiation potential
Mesenchymal stem cells (MSCs) are usually cultured under normoxic conditions (21% oxygen). However, in vivo, the physiological “niches” for MSCs have a much lower oxygen tension. Because of their plasticity, s...
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Article
A crosstalk between hSiah2 and Pias E3-ligases modulates Pias-dependent activation
Protein inhibitor of activated STAT (Pias) and human homologues of seven in absentia (hSiah) proteins both exhibit properties of ubiquitin-family peptides conjugating enzymes. Pias present E3-ligase activity f...
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Article
Higher-Order Method for the Solution of a Nonlinear Scalar Equation
A new iterative method to find the root of a nonlinear scalar function f is proposed. The method is based on a suitable Taylor polynomial model of order n around the current point x ...
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Article
Cyclo-oxygenase-2 (COX-2) inhibition reduces apoptosis in acute myocardial infarction
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Article
SIAH-1 inhibits cell growth by altering the mitotic process
SIAH-1, the human homologue of the drosophila seven in absentia gene, is a p53-p21Waf-1 inducible gene. We report that stable transfection with SIAH-1 of the epithelial breast cancer cell line MCF-7 blocks its gr...
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Article
Asymptotic linearization and stabilization for a class of nonlinear systems
This paper presents a nonlinear output feedback which asymptotically linearizes the class of nonlinear, continuous-time, affine in the control systems having relative degree equal to the state space dimension....
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Article
Image modeling and restoration: A new approach
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Article
Image modeling and restoration: A new approach
In this paper a new method to image restoration problems is proposed. The main result is the definition of an image model which does not require knowledgea priori of the image autocorrelation function or the use ...
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Chapter and Conference Paper
New approach to image modelling with application to restoration problems
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Article
Finite-dimensional approximations for the equation of nonlinear filtering derived in mild form
The Zakai equation for the unnormalized conditional density is derived as a mild stochastic bilinear differential equation on a suitableL 2 space. It is assumed that the Markov semigroup corresponding to the stat...
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Chapter and Conference Paper
Galerkin approximation for optimal linear filtering of infinite dimensional linear systems
In this paper an implementable approximation of the infinite-dimensional Kalman filter is proposed for linear distributed systems corrupted by white noise. It relies on a Galerkin type treatment of both the Ri...
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Chapter and Conference Paper
Error estimates for finite-element approximation of the Zakai equation
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Chapter and Conference Paper
Determination of DNA Synthesis Rate in Cell Populations with Locally Exponential S-Phase Influx
Flow microfluorometry is a valuable tool for cell kinetics investi gations [1]. Several mathematical methods are available to evaluate the fraction of cells in cycle phases from a flow-cytometrie (FCM) histogram ...
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Chapter and Conference Paper
A Galerkin approximation for the Zakai equation
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Chapter and Conference Paper
Nonlinear filtering for markov processes: An L2 approach
In this paper the Zakai equation of nonlinear filtering is directly derived as a mild stochastic differential equation on a Hilbert space. This is established when the state process is Markov, with a generator...
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Article
Estimation of cell DNA synthesis rate from flow-cytometric histograms
The rate of DNA synthesis along S-phase can be estimated on the basis of a simple model of a cell population, from a single FCM histogram under conditions of balanced exponential growth, and from two histogram...
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Chapter and Conference Paper
Output ε-trajectory controllability for a class of nonlinear distributed systems
In this paper, with reference to the class of perturbed linear systems on Hilbert spaces, we study the input-output ε-trajectory controllability property: i.e. the capability of the input to drive the output c...
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Chapter and Conference Paper
Problems in the Evaluation of Antibody Affinity Distribution during the Immune Response
Correct analysis of the crude experimental data is an absolute pre requisite for the evaluation of the results. On the other hand, only uniformity of such an analysis allows comparison of results obtained unde...
