We briefly review issues impacting the introduction, evaluation, and cost of technology in critical care, providing a clinician's perspective. Where appropriate, we note important distinctions between health-care systems in Canada and the United States--primarily the result of significant differences in the methods for funding health care in the two countries. Finally, we discuss what processes...

1. Is assertion a natural kind? Wittgenstein is often thought to have challenged the view that assertion is an important theoretical category in a philosophical view of language. One of Wittgenstein’s main themes in the early sections of the Investigations is that philosophy misses important distinctions about the uses of language, distinctions hidden from us by ‘the uniform appearances of word...

Two research hypotheses were tested in the research reported here: The first was that nonlinguistic maternal responses to intentional child communication, but not to preintentional communication, will predict later intentional communication but not later language development. The second hypothesis was that linguistic mapping of intentional communication, but not of preintentional communication,...

The notion of autocatalysis actually covers a large variety of mechanistic realisations of chemical systems. From the most general definition of autocatalysis, that is a process in which a chemical compound is able to catalyze its own formation, several different systems can be described. We detail the different categories of autocatalyses, and compare them on the basis of their mechanistic, ki...