A Semiparametric Bayesian Approach to Epidemics, with Application to the Spread of the Coronavirus MERS in South Korea in 2015.

We consider incomplete observations of stochastic processes governing the spread of infectious diseases through finite populations by way of contact. We propose a flexible semiparametric modeling framework with at least three advantages. First, it enables researchers to study the structure of a population contact network and its impact on the spread of infectious diseases.

Large-scale estimation of random graph models with local dependence.

A class of random graph models is considered, combining features of exponential-family models and latent structure models, with the goal of retaining the strengths of both of them while reducing the weaknesses of each of them. An open problem is how to estimate such models from large networks. A novel approach to large-scale estimation is proposed, taking advantage of the local structure of such models for the purpose of local computing.

Effect of anomalous elasticity on bubbles in van der Waals heterostructures.

It is shown that the anomalous elasticity of membranes affects the profile and thermodynamics of a bubble in van der Waals heterostructures. Our theory generalizes the nonlinear plate theory as well as the membrane theory of the pressurised blister test to incorporate the power-law scale dependence of the bending rigidity and Young's modulus of a two-dimensional crystalline membrane. This scale dependence, caused by long-range interaction of relevant thermal fluctuations (flexural phonons), is responsible for the nonlinear Hooke law observed recently in graphene.

[Cardiac diastolic function in children and adolescents during prompt and long-term adaptation to physical exercise].

To study the natural changes in cardiac diastolic function in ontogenesis at various stages of exercise adaptation, 65 males aged 10-17 years who go in for various kinds of sports developing primarily physical fitness have been examined. Long-term adaptation to cyclic muscular activity has been shown to result in a reduction in cardiovascular lability, an optimization of inclusion of myocardial functional reserves, and an increase in efficiency of using cardiac cycle time in response to myocardial restorative processes. High stages of exercise adaptation formed an additional mechanism responsible for diastolic filling at the expense of an atrial systole (an atrial mechanism of diastolic regulation).