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Demographic stochasticity

Demographic stochasticity in the SDE SIS epidemic model

Demographic stochasticity in the SDE SIS epidemic model

... with demographic stochasticity that we shall look at in this paper has been derived fully in details in [1] with the model given in section ...with demographic stochasticity, in the hope to ...

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SDE SIS epidemic model with demographic stochasticity and varying population size

SDE SIS epidemic model with demographic stochasticity and varying population size

... In this paper we have constructed the SDE SIS model with full demographic stochasticity with transmission term λ( N N ) S ( ( t t ) ) I ( t ) . The deterministic SDE SIS model assumes that the total ...

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The effect of environmental stochasticity on species richness in neutral communities

The effect of environmental stochasticity on species richness in neutral communities

... model. Demographic stochasticity, which is the endogenous noise associated with the discreteness of the birth-death process, provides the natural mathematical tool to deal with these aspects of ...of ...

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Inbreeding, Allee effects and stochasticity might be sufficient to account for Neanderthal extinction

Inbreeding, Allee effects and stochasticity might be sufficient to account for Neanderthal extinction

... year, demographic and environmental stochasticity might very well work in opposite directions; environmental conditions, for instance, might be favorable and alleviate the stress induced by ...

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Eluding catastrophic shifts

Eluding catastrophic shifts

... (demographic) stochasticity can alter deterministic predictions dramatically, especially in the presence of other realistic features such as limited mobility or spatial ...

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Real-time forecasting of an epidemic using a discrete time stochastic model: a case study of pandemic influenza (H1N1-2009)

Real-time forecasting of an epidemic using a discrete time stochastic model: a case study of pandemic influenza (H1N1-2009)

... Because real-time forecasting of epidemics has been understudied, in the present study a discrete time stochastic model, accounting for demographic stochasticity and condi- tional measurement was developed. ...

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Urban Growth Modelling Using Determinism and Stochasticity in a Touristic Village in Western Greece

Urban Growth Modelling Using Determinism and Stochasticity in a Touristic Village in Western Greece

... Urban development has acquired an important magnitude in touristic places in Greece. Many villages, especially in sea- side areas have adapted to touristic requirements by the necessary infrastructures and activities. ...

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Scalable Collapsed Inference for High Dimensional Topic Models

Scalable Collapsed Inference for High Dimensional Topic Models

... ages stochasticity to scale well in the number of documents, sparsity to scale well in the number of topics, and which operates in the collapsed rep- resentation of topic ...

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Control of heart rate through guided high rate breathing

Control of heart rate through guided high rate breathing

... However, relatively long periods of adaptation, the stochasticity of the breathing rate signal even when guided, the diffusive dynamics of heart rate, and intra-volunteer variability in [r] ...

10

Spontaneous Lexicon Change

Spontaneous Lexicon Change

... Then we introduce stochasticity in language use and show that this leads to a constant innovation new forms and new form-meaning associations and a maintenance of variation in the popula[r] ...

8

Growth Cycles, Network Effects, and Intersectoral Dependence: An Agent Based Model and Simulation Analysis

Growth Cycles, Network Effects, and Intersectoral Dependence: An Agent Based Model and Simulation Analysis

... • Interaction Labor allocation and network externality are global and thus create interaction effects • Stochasticity Innovation success, improvements from single innovations, assignment[r] ...

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Consequences of animal interactions on their dynamics: emergence of home ranges and territoriality

Consequences of animal interactions on their dynamics: emergence of home ranges and territoriality

... /D, it is necessary to obtain an independent measurement of D. In other words, to disen- tangle the randomness of the movement from the deter- minism inherent in the animal drift towards the den site, it is necessary to ...

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Accurate Path Integration in Continuous Attractor Network Models of Grid Cells

Accurate Path Integration in Continuous Attractor Network Models of Grid Cells

... aperiodic, network size, and stochasticity in neural activity We quantify path integration accuracy in both periodic and aperiodic recurrent network models of dMEC, and demonstrate that [r] ...

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The Analysis of Spot Price Stochasticity in Deregulated Wholesale Electricity Markets

The Analysis of Spot Price Stochasticity in Deregulated Wholesale Electricity Markets

... Electricity in Australia’s National Electricity Market (NEM) is, in contrast, produced predominantly by coal- and gas-fired thermal generation. As a result, the marginal costs of generation are simpler to estimate than ...

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Aire controls gene expression in the thymic epithelium with ordered stochasticity

Aire controls gene expression in the thymic epithelium with ordered stochasticity

... To determine how frequently individual genes were expressed in the MEC population, we calculated frequency of expression per gene as the number of MECs expressing a given gene specifical[r] ...

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An integrated probabilistic assessment to analyse stochasticity of soil erosion in different restoration vegetation types

An integrated probabilistic assessment to analyse stochasticity of soil erosion in different restoration vegetation types

... the stochasticity of fac- tors affecting soil erosion rate (Table ...The stochasticity of soil hydrological characteristics related to erosion rate mainly impacted in various ways the spatiotemporal ...

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Risk preference and choice stochasticity during decisions for other people

Risk preference and choice stochasticity during decisions for other people

... Participants performed a computer-based decision-making task lasting approximately 40 min (Fig. 1). On each trial, a monetary amount (referred to as the trial amount) that changed trial by trial (600 trials overall) was ...

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Extensions of Global Sensitivity Analysis: Theory, Computation, and Applications.

Extensions of Global Sensitivity Analysis: Theory, Computation, and Applications.

... In particular, this thesis considers (i) problems with statistically dependent input variables, (ii) uncertainty in the distribution of X , (iii) models with inherent stochasticity ( f d[r] ...

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Stochasticity in the Genotype-Phenotype Map: Implications for the Robustness and Persistence of Bet-Hedging

Stochasticity in the Genotype-Phenotype Map: Implications for the Robustness and Persistence of Bet-Hedging

... In this work we implement model GP mappings that stochas- tically determine one of two phenotypes, A or B , from a single genotype, g , encoding gene expression. We aim to investi- gate [r] ...

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Mosaic physiology from developmental noise: within organism physiological diversity as an alternative to phenotypic plasticity and phenotypic flexibility

Mosaic physiology from developmental noise: within organism physiological diversity as an alternative to phenotypic plasticity and phenotypic flexibility

... systems, stochasticity stems from the inherently random actions of small numbers of molecules interacting with one ...such stochasticity, and how they may use it to create adaptive functional ...from ...

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