Vaccination of poultry is an important control measure for avian influenza employed in the countries where the disease is endemic. We have formulated a coupled ODE-PDE model of avian influenza in domestic birds with imperfect vaccination and age-since-vaccination structure, which includes distinct features of vaccine-induced partial protection. Interestingly, our results show that vaccination c...

The use of periodic excitation signals in identiication experiments is advocated. With periodic excitation it is possible to separate the driving signals and the disturbances , which for instance implies that the noise properties can be independently estimated. In the paper a non-parametric noise model, estimated directly from the measured data, is used in a compensation strategy applicable to ...

The thermodynamics of the diffuse, X-ray emitting gas in clusters and groups of galaxies are affected by a certain amount of non–gravitational energy input, as indicated by the scaling properties of X–ray halos. Such a view has been recently confirmed by the detection of an excess entropy in the center of groups. It is not easy, however, to identify unambiguously the source and the epoch of suc...

Consistent estimators of the rank-de0cient fundamental matrix yielding information on the relative orientation of two images in two-view motion analysis are derived. The estimators are derived by minimizing a corrected contrast function in a quadratic measurement error model. In addition, a consistent estimator for the measurement error variance is obtained. Simulation results show the improved...

Article history: Received 16 August 2016 Received in revised form 17 October 2016 Accepted 21 November 2016 Available online xxxx Condominium neighbourhoods are emerging in intensifying city centres as a response to market and demographic preferences for homeownership.While themulti-ownership structure of individual condominiumbuildings accommodates a short-term demand, the long-term implicatio...

This paper explores the forces that shaped China’s interprovincial inequality in the last five decades of communist rule. In so far as the change in interprovincial inequality is the result of differential growth in the provincial GDP per capita and provincial economic growth may be decomposed into contributions by total factor productivity and other factor inputs, a new method is introduced, b...

OBJECTIVE The authors examined physician adoption of second-generation antipsychotic medications and identified physician-level factors associated with early adoption. METHODS The authors estimated Cox proportional-hazards models of time to adoption of nine second-generation antipsychotics by 30,369 physicians who prescribed antipsychotics between 1996 and 2008, when the drugs were first intr...

We consider the following problem: minx∈Rn min‖E‖≤η ‖(A+E)x− b‖, where A is an m×n real matrix and b is an n-dimensional real column vector when it has multiple global minima. This problem is an errors-in-variables problem, which has an important relation to total least squares with bounded uncertainty. A computable condition for checking if the problem is degenerate as well as an efficient alg...

Orthogonal regression is one of the standard linear regression methods to correct for the eeects of measurement error in predictors. We argue that orthogonal regression is often misused in errors-in-variables linear regression, because of a failure to account for equation errors. The typical result is to overcorrect for measurement error, i.e., overestimate the slope, because equation error is ...