One of the dominant themes of the symposium from which this collection of articles arose was the ontological status of consent. Is consent a particular state of mind? Is it the signification of that state of mind via a conventionally recognized act? Or, is consent a normative concept that evaluates not only the presence of a state of mind or act, but also the appropriateness of that state of mind or act in the particular circumstances?

Commentators are divided on the interpretation of Metaphysics Z4 1029b13–22. For one thing, it is unclear whether the passage rejects a claim about the essence of surface, or about the essence of pale. It is usually thought that the claim is disavowed because it involves a circular definition. However, this is conjectural, since Aristotle does not explicitly say anything about circularity in the lines in question. I argue here for an alternative account, which reads the disputed lines as an extension (...) of the immediately preceding remarks. If correct, this also solves the problem as to just what Aristotle is denying. As will emerge, my story is helped by St. Thomas’ reading of lines 21–22, an account that has been curiously ignored in the recent literature. (shrink)

Two different methods of approach, currently under investigation, are suggested for calculating the eikonal function corresponding to quark-quark scattering at very high energies and small momentum transfers. These methods illustrate the realistic, dynamical complexities inherent in QCD scattering problems.

The framework of Findlay & Walker's target article provides a first attempt to model the saccadic system at all levels. Their scheme is based on two main principles. These are “parallel processing of saccade timing and metrics” and “competitive inhibition through winner-take-all strategies.” In our opinion, however, both concepts are in their strictest sense at odds with the current knowledge of the saccadic system, and need to be refined to make the scheme more relevant.

In this article the various descriptions and interpretations ofprofessional autonomy, as have been given in the articles from Belgium,Italy and the UK are subjected to a further analysis. The implicit claimthat professional autonomy of physicians is beneficial for the health ofpatients is scrutinized and is proven to be untrue and invalid. Theconclusion is that professional autonomy is more directed at theinterests of physicians than of those of patients and deserves nospecial place in health care.

During the formative years for Dialogue, I was absent from Canada on sabbatical leave, and so my memory of the initial moves by the officers and directors of the Canadian Philosophical Association towards publishing their own scholarly review is faded by time and fuzzily out of focus. One thing stands out clearly and should be spoken of first. The initial impetus and steady pressure towards publication came from the francophone members. Father Jean Langlois spoke of this in his brief “liminaire”, (...) introducing the first number in June 1962: “Réalisation d'un projet dont nous rêvions depuis la fondation de notre groupement, il y a quatre ans.” It had been no idle or empty dream. Money had been earned and set aside for just this purpose by one of our senior francophone members and was available towards the start-up production costs. A francophone co-editor had been chosen well before his anglophone colleague was sounded out. The motion committing the Association to the venture was proposed and seconded, in Montreal, by members from the universities of Montreal and of Ottawa. (shrink)

Shortly after bacteriologist Paul de Kruif had been dismissed from a research position at the Rockefeller Institute for Medical Research, he started contributing to a novel in collaboration with the future Nobel laureate Sinclair Lewis. The novel, Arrowsmith, would become one of the most famous satires on medicine and science. Using de Kruif’s correspondence with his idol Jacques Loeb, this paper describes the many ways in which medical science is depicted in Arrowsmith. This article compares the novel with de Kruif’s (...) and Loeb’s biographies, and focuses on the struggles of the main character, Martin Arrowsmith, as an allegory of the institutionalisation of medical research in the US, shows that Sinclair’s purpose is to caricaturise scientific work in modern medical research institutions anywhere and shows that the novel depicts a reductionist philosophy of research that seems to contradict the “messiness” of medical practice. (shrink)

We give an example in which it is possible to understand quantum statistics using classical concepts. This is done by studying the interaction of chargedmatter oscillators with the thermal and zeropoint electromagnetic fields characteristic of quantum electrodynamics and classical stochastic electrodynamics. Planck's formula for the spectral distribution and the elements of energy hw are interpreted without resorting to discontinuities. We also show the aspects in which our model calculation complement other derivations of blackbody radiation spectrum without quantum assumptions.

Open peer commentary on the article “A Computational Constructivist Model as an Anticipatory Learning Mechanism for Coupled Agent–Environment Systems” by Filipo Studzinski Perotto. Upshot: Interaction-based models of cognition force anticipatory and constructivist models. The CALM model offers significant development of such models within a machine learning framework. It is suggested that moving to an entirely interactive-based model offers still further advantages.

In the second book of his Epitoma rei militaris Vegetius sets himself the task of describing the organization of the antiqua legio of the Roman Army, the units into which it was divided, its officers, the arms of its soldiers, and its tactical employment on the field of battle. Interspersed in this account are frequent references to changes that had been subsequently effected and were in operation in the author's lifetime. But although these annotations destroy the synthesis of the book, (...) and the transition from past to present is not always clearly indicated, the disentanglement of Vegetius' own additions from the material provided by his source or sources is not the chief difficulty that confronts the modern historian. For with few exceptions in chapters 4–14 Vegetius describes the antiqua legio in the imperfect, the legion of his own time in the present indicative, with the not infrequent addition of the word ‘nunc’ or ‘hodie.’ The great problem is to discover whether in his account of the antiqua legio the author is referring to any one period of Roman History, and, if so, whether its limits can be exactly defined. Many solutions have been attempted. Some scholars have thought that the period is earlier than Hadrian; the more generally accepted theory is that the antiqua legio can be identified with the legion as it was constituted in the reign of Diocletian. Recently two German historians have subjected the evidence to fresh consideration, and, while one of them agrees with the majority in selecting the age of Diocletian for his answer to the problem, the other believes that he can date the period to which Vegetius is referring to the late second century A.D. (shrink)

This paper attempts to outline some of the important concepts and ideas used in system analysis which is taken to be a general mode of analysis used in all sciences. Systems are seen from three perspectives: that involving the relationship between system and environment, that involving interaction between several systems, and that involving one type of system composed of other types of systems. The writers also discuss the concepts "structure" and "equilibrium" as they apply to system analysis, the point being (...) made that the use of these concepts in the social sciences has often been vague or even incorrect. (shrink)

Claims regarding collective or group mental states are fairly commonplace: we speak of things like the belief of the Church, the will of the faculty, and the opinion of the Supreme Court, often without considering what such claims really mean and whether they are true in any interesting sense. In this paper I take a threefold approach: first, I articulate several ways in which a group might be said to have beliefs and other mental states. Second, I explore the implications, (...) positive and negative, of these accounts of collective mental states. Third, I give a brief defense of my own view despite its somewhat disturbing implications for our membership in Church, State, and other groups. (shrink)