This paper extends the standard quality ladder model of innovation and quality growth by allowing for heterogeneous industries. This enables us not only to deal with the Schumpeterian hypothesis about market power and innovation, but also to analyze industry specific demand pull and technology push effects. In accordance with the empirical evidence, we show that perspective of large market powe...

An estimate of the time required for positional signalling in the chick wing bud was obtained by grafting irradiated quail polarizing regions to host wing buds and removing them at various times. Such polarizing regions must be present for at least 15 h to induce additional structures in the host wings. This results is discussed in terms of a diffusible morphogen model.

S suites are a key driver of a hospital’s costs, revenues, and utilization of postoperative resources such as beds. This article describes some commonly occurring operations management problems faced by the managers of surgical suites. For three of these problems, the article also provides preliminary models and possible solution approaches. Its goal is to identify open challenges to spur furth...

Although qualitative inquiry has developed into a popularized and very useful way of conducting research within the health sciences, there has been a relatively disproportionate amount of literature devoted to “who“ is represented in such inquiries. It is most often assumed that the end text should present an objective, value-free, and accurate representation of the participants and therefore e...

Teratosphaeria destructans and T. viscida are serious pathogens causing leaf, bud and shoot blight diseases of Eucalyptus plantations in the subtropics and tropics of South-East Asia (T. destructans) and North Queensland, Australia (T. viscida). During disease surveys in northern Western Australia and the Northern Territory of Australia, symptoms resembling those of T. destructans were observed...

In order to make progress on Intelligent Tutoring in ill-defined domains it is helpful to start with a definition. In this paper we consider the existing definitions and select one for the basis of our discussion. We then summarize some of the more salient characteristics of ill-defined domains from a tutoring standpoint and some human and ITS strategies that have been employed to cope with the...

Observation of a clinical event can spur reflective thinking on its source. In pharmacology, adverse events are examples of observations for which deriving the cause is important. Moving from observation to mechanistic understanding requires the use of tools that explicitly delineate biological systems, mode of action, and disease pathophysiology. By expanding understanding of biological factor...