There is a continued need to consider ways to prevent early adolescent engagement in a variety of harmful risk-taking behaviours for example, violence, road-related risks and alcohol use. The current prospective study examined adolescents? reports of intervening to try and stop friends? engagement in such behaviours among 207 early adolescents (mean age?=?13.51?years, 50.1% females). Findings showed that intervening behaviour after three months was predicted by the confidence to intervene which in turn was predicted by student and teacher support although not (...) parental support. The findings suggest that the benefits of positive relationship experiences might extend to the safety of early adolescent friendship groups particularly through the development of confidence to try and stop friends? risky and dangerous behaviours. Findings from the study support the important role of the school in creating a culture of positive adolescent behaviour whereby young people take social responsibility. (shrink)

This paper provides a method for characterizing space events using the framework of conceptual spaces. We focus specifically on estimating and ranking the likelihood of collisions between space objects. The objective is to design an approach for anticipatory decision support for space operators who can take preventive actions on the basis of assessments of relative risk. To make this possible our approach draws on the fusion of both hard and soft data within a single decision support framework. Contextual data is (...) also taken into account, for example data about space weather effects, by drawing on the Space Domain Ontologies, a large system of ontologies designed to support all aspects of space situational awareness. The framework is coupled with a mathematical programming scheme that frames a mathematically optimal approach for decision support, providing a quantitative basis for ranking potential for collision across multiple satellite pairs. The goal is to provide the broadest possible information foundation for critical assessments of collision likelihood. (shrink)

Previous work has shown that the Complex Conceptual Spaces − Single Observation Mathematical framework is a useful tool for event characterization. This mathematical framework is developed on the basis of Conceptual Spaces and uses integer linear programming to find the needed similarity values. The work of this paper is focused primarily on space event characterization. In particular, the focus is on the ranking of threats for malicious space events such as a kinetic kill. To make the Conceptual Spaces framework work, (...) the similarity values between the contents of observations on the one hand and the properties of the entities observed on the other needs to be found. This paper shows how to exploit Dempster-Shafer theory to implement a statistical approach for finding these similarities values. This approach will allow a user to identify the uncertainty involved in similarity value data, which can later be propagated through the developed mathematical model in order for the user to know the overall uncertainty in the observation-to-concept mappings needed for space event characterization. (shrink)

? The author wishes to acknowledge the help he has received from Mr R. S. Easterby of the Applied Psychology Department, University of Aston in Birmingham, in completing this research.

This, the twenty-seventh volume in the annual series of publications by the American Society for Political and Legal Philosophy, features a number of distinguised contributors addressing the topic of criminal justice. Part I considers "The Moral and Metaphysical Sources of the Criminal Law," with contributions by Michael S. Moore, Lawrence Rosen, and Martin Shapiro. The four chapters in Part II all relate, more or less directly, to the issue of retribution, with papers by Hugo Adam Bedau, Michael Davis, Jeffrie G. (...) Murphy, and R. B. Brandt. In the following part, Dennis F. Thompson, Christopher D. Stone, and Susan Wolf deal with the special problem of criminal responsibility in government-one of great importance in modern society. The fourth and final part, echoing the topic of NOMOS XXIV, Ethics, Economics, and the Law , addresses the economic theory of crime. The section includes contributions by Alvin K. Klevorick, Richard A. Posner, Jules L. Coleman, and Stephen J. Schulhofer. A valuable bibiography on criminal justice by Andrew C. Blanar concludes this volume of NOMOS. (shrink)

Studies in philosophy: I. Tufts, J.H. On moral evolution. II. Willcos, W.F. The expansion of Europe in its influence upon population. III. Woods, R.A. Democracy a new unfolding of human power. IV. Sharp, F.C. An analysis of the moral judgment. V. Woodbridge, F.J.E. The problem of consciousness. VI. Norton, E.L. The intellectual element in music. VII. Raub, W.L. Pragmatism and Kantianism. VIII. Lyman, E.W. The influence of pragmatism upon the status of theology.--Studies in psychology: IX. Delabarre, E.B. Influence of surrounding (...) objects on the apparent direction of a line. X. Swift, E.J. Beginning a language; a contribution to the psychology of learning. XI. Pierce, A.H. An appeal from the prevailing doctrine of a detached subconsciousness. XII. Woodworth, R.S. The cause of a voluntary movement. XIII. Burnett, C.T. An experimental test of the classical theory of volition. (shrink)

The notion of autonomy commonly employed in medical ethics literature and practices is inadequate on three fronts: it fails to properly identify nonautonomous actions and choices, it gives a false account of which features of actions and choices makes them autonomous or nonautonomous, and it provides no grounds for the moral requirement to respect autonomy. In this paper I offer a more adequate framework for how to think about autonomy, but this framework does not lend itself to the kinds of (...) practical application assumed in medical ethics. A general problem then arises: the notion of autonomy used in medical ethics is conceptually inadequate, but conceptually adequate notions of autonomy do not have the practical applications that are the central concern of medical ethics. Thus, a revision both of the view of autonomy and the practice of “respect for autonomy” are in order. (shrink)

The proposition that a decreasing sequence of ordinals necessarily terminates has been given a new, and perhaps unexpected, importance by the rôle which it plays in Gentzen's proof of the freedom from contradiction of the “reine Zahlentheorie.” Gödel's construction of non-demonstrable propositions and the establishment of the impossibility of a proof of freedom from contradiction, within the framework of a certain type of formal system, showed that a proof of freedom from contradiction could be found only by transcending the axioms (...) and proof processes of that formal system. Gentzen's proof succeeds by utilisingtransfinite inductionto prove that certain sequences of reduction processes, enumerated by ordinals less than ε (the first ordinal to satisfy ε = ὡ) are finite. Were it possible to provethe restricted ordinal theorem, that a descending sequence of ordinals, less thanε, is finite, in Gentzen's “reine Zahlentheorie,” then it would be possible to determine a contradiction in that number system. In his paper, Gentzen proves the theorem of transfinite induction, which he requires, by an intuitive argument. There is also a method of reducing transfinite induction, for ordinals less than ε, to a number-theoretic principle given by Hilbert and Bernays, and a similar method by Ackermann. None of these proofs of transfinite induction isfinitist. (shrink)

I propose to begin with some fairly unexciting and uncontroversial remarks about possibility-statements, and then in their light to examine two problems philosophers have raised about certain statements of this kind which might be made in Christian theology where it touches on the doctrine of the Incarnation.

Mr D. H. Mellor, in his article of this title in Religious Studies , Vol. 5 , distinguishes three senses of words such as ‘probable’ which might be used in a religious context, especially in that of attempted theistic proofs: statistical, subjective, and inductive probability. In each case he concludes that it is misleading to use these words in such contexts at all. With his discussion of the second I do not wish to quarrel; but there seem to me to (...) be serious defects in his discussions of the first and third. (shrink)

Alberto Cortes, in [1], attempts to show that Leibniz's Principle of The Identity of Indiscernibles is a principle restricted to individuals, and that photons appear to violate L. L is stated by Leibniz as “no two substances are completely similar, or differ solo numero.” In second-order quantification theory with identity L becomes.

This graduate-level_text by a master in the field builds a function theory of the rational field that combines aspects of classical and intuitionist analysis. Topics include recursive convergence, recursive and relative continuity, recursive and relative differentiability, the relative integral, elementary functions, and transfinite ordinals. 1961 edition.

‘Jason…chosen leader because his superior declines the honour, subordinate to his comrades, except once, in every trial of strength, skill, or courage, a great warrior only with the help of magical charms, jealous of honour but incapable of asserting it, passive in the face of crisis, timid and confused before trouble, tearful at insult, easily despondent, gracefully treacherous in his dealings with the love-sick Medea but cowering before her later threats and curses, coldly efficient in the time-serving murder of an (...) unsuspecting child , reluctant even in marriage.’ So Carspecken put the case against Jason's heroism. In the face of such an indictment, Lawall's plea in mitigation, ‘it must be admitted that [Jason] often reveals the qualities of a true gentleman’, seems somehow inadequate. Criticism since Carspecken has found various overlapping categories for Jason which both take account of the earlier negative judgements and preserve the centrality of his ‘personality’ and character in the poem: Jason is the quiet diplomat who works through consensus rather than force, his is a heroism of sex-appeal, he is an anti-hero, the embodiment of Sceptic ‘suspension of judgement’, or, alternatively, he is ‘one of us’, credible and lifelike. Carspecken himself tried a different tack: the poem is concerned not with individual heroism but with the heroism of the group. (shrink)