Until recently, the paradoxes of set theory were hardly used at all in the analysis of dialectical contradiction. "Violations of the Aristotelian law of contradiction have been found everywhere except where logic and mathematics saw them." Today a practice of study of paradoxes in set theory by the devices of materialist dialectics is taking shape in our literature.

We report the results of a randomized trial to assess the impact of an innovative ethics curriculum on the knowledge and confidence of 85 medical house officers in a university hospital programme, as well as their responses to a simulated clinical case. Twenty-five per cent of the house officers received a lecture series, 25 per cent received lectures and case conferences, with an ethicist in attendance, and 50 per cent served as controls. A post-intervention questionnaire was administered. Knowledge scores did (...) not differ among the groups. Confidence regarding ethical issues was significantly greater in the aggregate intervention group compared to the control group. Confidence regarding procedural issues related to ethics was significantly higher for the EI group than for the controls. Responses to a simulated case showed that significantly fewer house officers in the EI group would intubate a patient for whom such therapy would be futile. We conclude that ethics education can have an impact on house officers' confidence and their responses to a simulated case, and that the EI was more effective than the LI. Such results have implications regarding the implementation of ethics education during residency. (shrink)

As we go to press, the threat of biological or chemical warfare in the Persian Gulf is no longer imminent. Yet the questions raised by the proposed use of “investigational drugs,” without informed consent, to protect U.S. troops remain. The article by Edmund G. Howe and Edward D. Martin presents the arguments that informed the Pentagon's thinking on the subject. It and the commentaries, by George J. Annas and Michael A. Grodin, and Robert J. Levine, explore, among others, issues of (...) informed consent, of distinguishing ‘research’ and ‘treatment,’ and of the nature and extent of the autonomy of military personnel.—B‐JC, HLN. (shrink)

Studies of change blindness indicate that more intentional monitoring of changes is necessary to successfully detect changes as scene complexity increases. However, there have been conflicting reports as to whether people are aware of this relation between intention and successful change detection as scene complexity increases. Here we continue our dialogue with [Beck, M. R., Levin, D. T., & Angelone, B. . Change blindness blindness: Beliefs about the roles of intention and scene complexity in change detection. Consciousness and Cognition, (...) 16, 31–51; Beck, M. R., Levin, D. T., & Angelone, B. . Metacognitive errors in change detection: Lab and life converge. Consciousness and Cognition, 16, 58–62] by reporting two experiments that show participants do in fact intuit that more intentional monitoring is needed to detect changes as scene complexity increases. We also discuss how this dialogue illustrates the need for psychological studies to be grounded in measurements taken from real world situations rather than laboratory experiments or questionnaires. (shrink)

Kann Gott tun, was er will oder will Gott, was seinem Wesen entspricht? Ist Gott an notwendige Prinzipien gebunden oder ist notwendig, was Gott dekretiert? Derartige Fragen nach dem Verhältnis von Modalitäten und Gotteskonzepten sind Bestandteil unzähliger Debatten und reichen weit in die Philosophie- und Theologiegeschichte zurück. Die vorliegende Studie untersucht zunächst die Modalmetaphysiken G.W. Leibniz', D. Lewis' und A. Plantingas samt ihren sehr unterschiedlichen ontologischen Voraussetzungen. Im Anschluss werden die in der gegenwärtigen analytisch-religionsphilosophischen Debatte dominanten Formen des Theismus analysiert: (...) der klassische und personale Theismus und der Panentheismus. Das Kernstück dieser Studie bildet die Analyse von Konsistenzen und Inkonsistenzen, die zutage treten, will man aus metaphysisch-ontologischen Gründen diese unterschiedlichen Formen des Theismus mit den Modaltheorien Lewis', Leibniz' oder Plantingas verbinden. (shrink)

Given a graph G, we say that a subset D of the vertex set V is a dominating set if it is near all the vertices, in that every vertex outside of D is adjacent to a vertex in D. A domatic k-partition of G is a partition of V into k dominating sets. In this paper, we will consider issues of computability related to domatic partitions of computable graphs. Our investigation will center on answering two types of questions for (...) the case when k = 3. First, if domatic 3-partitions exist in a computable graph, how complicated can they be? Second, a decision problem: given a graph, how difficult is it to decide whether it has a domatic 3-partition? We will completely classify this decision problem for highly computable graphs, locally finite computable graphs, and computable graphs in general. Specifically, we show the decision problems for these kinds of graphs to be ${\Pi^{0}_{1}}$ -, ${\Pi^{0}_{2}}$ -, and ${\Sigma^{1}_{1}}$ -complete, respectively. (shrink)

Philosophical writing on the welfare state has taken a defensive turn in recent years, largely in response to two related phenomena: the re-emergence of pro-market ideologies in the larger political culture and the imperiled condition of real world welfare states in a global economy in which national governments have diminishing capacities for shaping the social and economic lives of their citizens. But thanks in part to the tireless advocacy of Philippe Van Parijs, an even more radically redistributive form of public (...) provision than the welfare state has come onto the intellectual agenda—and the political agenda too, at least in Belgium and the Netherlands. Van Parijs proposes that all citizens be accorded an unconditional “basic income grant” as large as is compatible with the need to generate as much wealth as possible for redistribution. By now, this idea has many defenders. It also boasts a genealogy extending back to such writers as Tom Paine, François Huet, Edward Bellamy and G. D. H. Cole. But Van Parijs has become its best-known and most adept philosophical proponent, and this book represents his most sustained effort to date to investigate its normative foundations. (shrink)

Roslynn D. Haynes, From Faust to Strangelove: Representations of the Scientist in Western Literature. Baltimore: Johns Hopkins University Press, 1994. Pp. ix+417. ISBN 0-8018-4801-6, £16.50.George Levine , Realism and Representation: Essays on the Problem of Realism in Relation to Science, Literature and Culture. Madison: University of Wisconsin Press, 1993. Pp. xiii+330. ISBN 0-229-13630-2, £40.00 ; 0-229-13634-5, £19.00 .Sherry Turkle, Life on the Screen: Identity in the Age of the Internet. Cambridge, MA: Simon and Schuster, 1995. Pp. 347. ISBN 0-297-81514-8. No (...) price given.Despite the alarming drop in numbers of students studying science throughout the Western world today there is no more important subject in our time than science broadly construed, and these three books provide some of the reasons. Their diversity indicates the shape of the debates occurring about the scientist in Western culture, science's tortured philosophical realism and representation as troubled categories, and, most predictably, life on the screen in the age of the Internet. (shrink)

Philosophical writing on the welfare state has taken a defensive turn in recent years, largely in response to two related phenomena: the re-emergence of pro-market ideologies in the larger political culture and the imperiled condition of real world welfare states in a global economy in which national governments have diminishing capacities for shaping the social and economic lives of their citizens. But thanks in part to the tireless advocacy of Philippe Van Parijs, an even more radically redistributive form of public (...) provision than the welfare state has come onto the intellectual agenda—and the political agenda too, at least in Belgium and the Netherlands. Van Parijs proposes that all citizens be accorded an unconditional “basic income grant” as large as is compatible with the need to generate as much wealth as possible for redistribution. By now, this idea has many defenders. It also boasts a genealogy extending back to such writers as Tom Paine, François Huet, Edward Bellamy and G. D. H. Cole. But Van Parijs has become its best-known and most adept philosophical proponent, and this book represents his most sustained effort to date to investigate its normative foundations. (shrink)

Relatively congruence regular quasivarieties and quasivarieties of logic have noticeable similarities. The paper provides a unifying framework for them which extends the Blok-Pigozzi theory of elementarily algebraizable (and protoalgebraic) deductive systems. In this extension there are two parameters: a set of terms and a variable. When the former is empty or consists of theorems, the Blok-Pigozzi theory is recovered, and the variable is redundant. On the other hand, a class of membership logics is obtained when the variable is the only (...) element of the set of terms. For these systems the appropriate variant of equivalent algebraic semantics encompasses the relatively congruence regular quasivarieties. (shrink)

The general concept of a causal system has been basic in scientific thought. It may be formulated as follows. The system in question possesses certain measurable attributes such as those of dimensions, temperature, and so forth. In the case of a causal system, it is affirmed that the subsequent development of the system from a known initial condition—that is, a condition in which the measurable variables have known values—is uniquely determined by these values. More definitely, the value of these same (...) variables after any interval of time depends only on the initial values of the variables and the time interval which has elapsed. (shrink)

MATERIALISTS claim that in principle mentality could be accounted for entirely by properties of matter. They must, of course, clarify, as far as possible, the precise scope of the concept "properties of matter." According to materialists there exists only one type of "substance" in the universe, namely matter. Sophisticated experimental and theoretical analyses have led contemporary physicists to interpret known material entities as being composed of two classes of elementary particles, namely quarks and leptons and constituents of interaction fields that (...) mediate interactions between some or all of the elementary particles and which comprise photons, gluons, intermediate bosons and gravitons. For instance, protons and neutrons are composed--by hypothesis--of quarks, while electrons are probably the most familiar leptons. Whether any analyzed and postulated elementary particles and constituents of interaction fields are "ultimate" components of matter can never be known. It remains always possible that more basic subcomponents of known components will be discovered. This has happened repeatedly throughout the history of physics. Hence, what physicists understand by the "physical properties" of the basic components of matter must always remain expressed in terms of usually intricate hypothetico-deductive theories which are tentative and fallible. Contemporary relativistic quantum mechanics of elementary particles and of interaction fields provide typical examples of such hypothetico-deductive theories relating to present known basic components of matter. (shrink)