Though written corporate codes of ethics have been touted as a panacea for the embarrassments and uncertainties of the past two decades, the absence of clear evaluation procedures severely compromises their usefulness. An ethnographic study comparing development processes and compliance outcomes in large health care facilities and energy companies shows that neither of the two industries has encountered much success with a codes of ethics program. Companies that distribute copies of their code of ethics seldom ensure the process is completed (...) or that employees understand the purpose of the document, and staff responsible for the code give it a low priority relative to their overall responsibilities. Contrary to expectations, health care facilities are no more likely to develop or implement codes of ethics effectively than are energy companies. More extensive research is needed in order to generate the data necessary for the development of realistic standards for the evaluation of codes of ethics. (shrink)
The study of the autonomic nervous system (ANS) function has shown to provide useful indicators for risk stratification and early detection on a variety of cardiovascular pathologies. However, data gathered during different tests of the ANS are difficult to analyse, mainly due to the complex mechanisms involved in the autonomic regulation of the cardiovascular system (CVS). Although model-based analysis of ANS data has been already proposed as a way to cope with this complexity, only a few models coupling the main (...) elements involved have been presented in the literature. In this paper, a new model of the CVS, representing the ventricles, the circulatory system and the regulation of the CVS activity by the ANS, is presented. The models of the vascular system and the ventricular activity have been developed using the Bond Graph formalism, as it proposes a unified representation for all energetic domains, facilitating the integration of mechanic and hydraulic phenomena. In order to take into account the electro-mechanical behaviour of both ventricles, an electrophysiologic model of the cardiac action potential, represented by a set of ordinary differential equations, has been integrated. The short-term ANS regulation of heart rate, cardiac contractility and peripheral vasoconstriction is represented by means of continuous transfer functions. These models, represented in different continuous formalisms, are coupled by using a multi-formalism simulation library. Results are presented for two different autonomic tests, namely the Tilt Test and the Valsalva Manoeuvre, by comparing real and simulated signals. (shrink)
In this paper we give a positive answer to Julia Robinson's question whether the definability of + and · from S and ∣ that she proved in the case of positive integers is extendible to arbitrary integers (cf. [JR, p. 102]).
Richard Goldschmidt was one of the most controversial biologists of the mid-twentieth century. Rather than fade from view, Goldschmidt's work and reputation has persisted in the biological community long after he has. Goldschmidt's longevity is due in large part to how he was represented by Stephen J. Gould. When viewed from the perspective of the biographer, Gould's revival of Goldschmidt as an evolutionary heretic in the 1970s and 1980s represents a selective reinvention of Goldschmidt that provides a contrast to (...) other kinds of biographical commemorations by scientists. (shrink)
Amartya Sen is a renowned economist who has also made important contributions to philosophical thinking about distributive justice. These contributions tend to take the form of criticism of inadequate positions and insistence on making distinctions that will promote clear thinking about the topic. Sen is not shy about making substantive normative claims, but thus far he has avoided commitment to a theory of justice, in the sense of a set of principles that specifies what facts are relevant for policy choice (...) and determines, given a full characterization of any situation in terms of these relevant facts, what ought to be done in that situation. Moreover, Sen has expressed skepticism about the existence of a fully adequate theory in this sense. According to Sen there is a plurality of moral considerations that bear on choice of action and policy and no particular reason to think that weights can be attached nonarbitrarily to each consideration to yield a theory. (shrink)
Dr. Davidson is a William James and Vilas Research Professor of Psychology and Psychiatry at the University of Wisconsin-Madison. He received his Ph.D. from Harvard University in Psychology and has been at Wisconsin since 1984.
Over many decades, Richard Bernstein has interpreted contemporary philosophy’s three traditions, roughly distinguished as analytic, pragmatic, and Continental, emphasizing their mutual affinities. Despite this reference to the continent of Europe, it would be wrong to identify any of these traditions geographically or linguistically; even to call them ‘traditions’ is stretching a point. Pragmatism originated in Cambridge, Massachusetts, but it has spread from there, transmogrifying in the process and claiming surprising allies, such as Heidegger; the label ‘pragmatist’ has even been (...) affixed to Hegel! That its day has come is the theme of this, Bernstein’s latest book. Its title is a play on Richard Rorty’s famous .. (shrink)