We consider the dynamics of a mosquito-transmitted pathogen in a multi-patch Ross-Macdonald malaria model with mobile human hosts, mobile vectors, and a heterogeneous environment. We show the existence of a globally stable steady state, and a threshold that determines whether a pathogen is either absent from all patches, or endemic and present at some level in all patches. Each patch is charact...

In any environment of multiple information sources it is practically unavoidable that information sources would overlap; that is, describe the same portion of the real world. And when information sources overlap, it is practically unavoidable that information would be inconsistent; that is, describe diierently the same portion of the real world. In this report we deene a formal framework for re...

An accurate evaluation of the structural performance of reinforced concrete structural systems under seismic loading requires a probabilistic approach due to uncertainties in structural properties and the ground motion (referred to as basic uncertainties). The objective of this study is to identify and rank significant sources of basic uncertainties and structural components with respect to the...

Introduction: In a large number of cases the signal received by a sensor is the sum of elementary contributions that we can call sources. In these cases, without any knowledge of the sources (except an independence assumption), we would like to separate these independent sources. This problem is called 'blind separation of sources'. Ever since the remarkable results of the blind separation of s...

Undulator radiation is the X-ray source of choice for modern macromolecular crystallography beamlines. Here, the basic properties of undulator sources are described and it is indicated why they make such good X-ray sources for macromolecular crystallography. Collection of excellent data from these beamlines is not always straightforward; therefore, a number of rules are postulated for undulator...