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Diffusion models

Kinetics like equation for cerebrospinal fluid blood diffusion models

Kinetics like equation for cerebrospinal fluid blood diffusion models

... The passage of these components of lectin pathway from blood to CSF has allowed characterize these proteins as blood derived with the possibility of being synthesized in the CNS (1) because they follow the established ...

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The Role of the Risk-Neutral Jump Size Distribution in Single-Factor Interest Rate Models

The Role of the Risk-Neutral Jump Size Distribution in Single-Factor Interest Rate Models

... in diffusion models there are other alternatives such as the one proposed by [9] which consists of estimating the risk-neutral drift directly from market ...

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A new technique to estimate the risk neutral processes in jump–diffusion commodity futures models

A new technique to estimate the risk neutral processes in jump–diffusion commodity futures models

... two-factor models and developed a three-factor mean-reverting diffusion ...jump-diffusion models have been considered because there are numerous empirical studies which show that commodity ...

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Numerical models for simulating hydrogen diffusion and embrittlement in high strength steels

Numerical models for simulating hydrogen diffusion and embrittlement in high strength steels

... continuous diffusion models that are most commonly used in finite element ...are models that consider only two types of sites for hydrogen: interstitial sites and microstructural ...

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Estimation of risk neutral processes in single factor jump diffusion interest rate models

Estimation of risk neutral processes in single factor jump diffusion interest rate models

... the diffusion term structure literature, this function is estimated by means of a no-arbitrage argument as in Stanton (1997) but this is not valid in jump-diffusion models, Nawalkha et ...

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On motion in dynamic magnetic resonance imaging: Applications in cardiac function and abdominal diffusion

On motion in dynamic magnetic resonance imaging: Applications in cardiac function and abdominal diffusion

... The principal source of noise in MR data is the heat source, i.e., the subject or object to be scanned (what is commonly referred to as thermal noise), followed by electronic noise in the receiver chain (Weisskoff et ...

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Aplicació de models d'efectes aleatoris en l'epidemiologia quantitativa

Aplicació de models d'efectes aleatoris en l'epidemiologia quantitativa

... mixed models, future research should investigate the performances of these principles in mixed Poisson models including random slopes, cross-classified random ef- fects and multiple membership structures ...

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Brain Changes in Long Term Zen Meditators Using Proton Magnetic Resonance Spectroscopy and Diffusion Tensor Imaging: A Controlled Study

Brain Changes in Long Term Zen Meditators Using Proton Magnetic Resonance Spectroscopy and Diffusion Tensor Imaging: A Controlled Study

... imaging, diffusion weighted imag- ing (DWI) and diffusion tensor imaging (DTI) allow quantification of this microscopic movement within each ...directional diffusion-weighted images provides ...

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Fiber consistency measures on brain tracts from digital streamline, stochastic and global tractography

Fiber consistency measures on brain tracts from digital streamline, stochastic and global tractography

... the diffusion measurements do not depend on the previous step ...the diffusion data, and uncertainty enters in this process due to image noise and complex fiber ...

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Correlación entre la resonancia magnética de imagen (RMI) y la regeneración histológica del nervio periférico

Correlación entre la resonancia magnética de imagen (RMI) y la regeneración histológica del nervio periférico

... 28 Figura 9: Imagen de tensor de difusión con reconstrucción tridimensional y tractografía de nervios periféricos de ratón ex vivo. El seguimiento de la fibra con un umbral FA de 0.5 se realizó con los datos del tensor ...

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An integrated model of adoption and development of e commerce in companies

An integrated model of adoption and development of e commerce in companies

... the diffusion of IT, and particularly that of e-commerce on the Internet, has studied the influence of various characteristics of the firm’s organizational structure on the adoption of these ...organizational ...

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On the Modelling of Price Effects in the Diffusion of Optional Contingent Products

On the Modelling of Price Effects in the Diffusion of Optional Contingent Products

... the diffusion model’s parameters are endogenous focused on firms’ advertising strategies while only few of them used a similar formulation for pricing ...the diffusion function as in the ...

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New Estimation Techniques in Commodity Derivative Models under the Risk neutral Measure

New Estimation Techniques in Commodity Derivative Models under the Risk neutral Measure

... To investigate natural gas futures risk premia, first, we obtain the term structure as the mean of the risk premia for each maturity. We plot this term structure in Fig. 5 with two models: seasonal model and ...

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Diffusion Recombination Impedance Model for Solar Cells with Disorder and Nonlinear Recombination

Diffusion Recombination Impedance Model for Solar Cells with Disorder and Nonlinear Recombination

... the diffusion length could become shorter than L, and in that case the general diffusion–recombination impedance formula converges to the Gerischer impedance, in which the number of parameters is reduced by ...

10

From Tahrir to Puerta del Sol to Wall Street: The Transnational Diffusion of Social Movements in Comparative Perspective

From Tahrir to Puerta del Sol to Wall Street: The Transnational Diffusion of Social Movements in Comparative Perspective

... of diffusion: behavioural and ...of diffusion ac- cording to the mechanisms underlying each of them: direct (or relational) diffusion, which de- pends on the interpersonal ties between the initiators ...

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De Tahrir a Wall Street por la Puerta del Sol: la difusin transnacional de los movimientos sociales en perspectiva comparada

De Tahrir a Wall Street por la Puerta del Sol: la difusin transnacional de los movimientos sociales en perspectiva comparada

... of diffusion: behavioural and ...of diffusion ac- cording to the mechanisms underlying each of them: direct (or relational) diffusion, which de- pends on the interpersonal ties between the initiators ...

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Revista Contaduría y Administración

Revista Contaduría y Administración

... Another situation in which reducing the matrix into a vector may result in the loss of information is the case of the network properties. Frequently, structural variables, such as centrality, are included to explain ...

23

The risk-neutral stochastic volatility in interest rate models with jump–diffusion processes

The risk-neutral stochastic volatility in interest rate models with jump–diffusion processes

... In this paper, we consider a two-factor interest rate model with stochastic volatility and we propose that the interest rate follows a jump-diffusion process. The estimation of the market price of risk is an open ...

15

Finite Element Model of the Innovation Diffusion: An Application to Photovoltaic Systems

Finite Element Model of the Innovation Diffusion: An Application to Photovoltaic Systems

... the diffusion rate (D) has been solved at 43 incremental time steps through the ...of diffusion rate (D) for any spatial point in a given ...the diffusion rate in each spatial location after 13 years ...

18

A framework to study the resilience of organizations: a case study of a nuclear emergency plan

A framework to study the resilience of organizations: a case study of a nuclear emergency plan

... different models for the ...the Diffusion Element Generator is converted into the Command Generator, a model that generates the commands according to the Requirements ...the diffusion process, and ...

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