The sort of situation that I wish to consider is contamination of the air around vinyl chloride plants with low levels of vinyl chloride monomer. People living nearby would be exposed to it continuously for however many decades they lived there. If some cancers are caused by ambient levels of (say) 0.01 ppm, I want to discuss the likely effects on the numbers of cancers and the age distribution...

Let us think of such a tree (in which we take no account of the order among the sons of a node) as modelling the behaviour of a machine accepting symbols from, or submitting to observations by, its environment. In tree Tl only the symbol a may be accepted at the start (or, only the observation a may be made), after which b or c may be accepted. The tree is determinate, since no node has two out...

conclusion attending radiologists could diagnose acute appendicitis accurately on ne-ldct. performance of senior residents on ne-ldct is better than junior residents and comparable to attending radiologists. results diagnostic performances for acute appendicitis were not statistically different for attending radiologists at both examinations. better performance was noted on the ce-sdct with a b...

We address the problem of state observation for a system whose dynamics may involve poorly known, perhaps even nonlocally Lipschitz functions and whose output measurement may be corrupted by noise. It is known that one way to cope with all these uncertainties and noise is to use a high-gain observer with a gain adapted on-line. The proposed method, while presented for a particular case, relies ...

For dynamics ẋ = f(x) with output y = h(x) invariant with respect to a transformation group G, we define invariant asymptotic observer of the form ̇̂ x = f̂(x̂, y) where y = h(x) is the measured output and x̂ an estimation of the unmeasured state x. Such a definition is motivated by a class of chemical reactors, treated in details, when the group of transformations corresponds to unit changes and t...

Accent perception is only partly due to local phonetic cues. Moreover, global phonetic patterns as well as signal-external top-down knowledge play an important role. The presented experiment continues this line of research and provides evidence for German that the perceived local accent position is affected by a global factor which is central for speech, but which has not been addressed so far:...

In this paper a computational model is presented for how a desire triggers responses and feelings. The model shows how these feelings can be biased, for example due to addicting experiences in the past. Both the strength of a response and of the associated feeling result from a converging dynamic pattern modelled by reciprocal causal interactions between the two. The model has been used to cond...

In an attempt to provide an on-line payment mechanism for large-dollar cross-border transactions, TradeCard Inc. developed the world's first and only "credit card" for international trade. This case study discusses the major issues surrounding the viability of such a B2B electronic payment architecture. How would TradeCard provide a seamless and secure on-line settlement transaction? Is its pla...

In this article we analyze the global flow of migrants from 206 source countries to 145 destination countries (2006-2010) and focus on the differences in the migration network pattern between destination and source counters as represented by its degree and weight distribution. Degree represents the connectivity of a country to the global migration network, and plays an important role in definin...

This paper outlines an ambitious global mlearning solution called ‘Global MedAid’, which aims to provide learning resources and tools for personnel in disaster or emergency situations. It outlines the development process and, in doing so, presents the design considerations and solutions for developing a cross-platform application, which combines a wide range of media types for web-based, online...