In this article, the author focuses on the allocation of decision-making authority between parents and physicians. She argues that parents should have substantial room to decide whether genetic testing is good for their child and that they may appropriately consider interests in addition to those of their child in making such choices. A physician, however, may refuse to act pursuant to parental views about testing, when in the physician's view, the parents' choices would pose a risk of significant harm to (...) the child. The balance of control between parents and physicians is illustrated by discussion of a series of case vignettes. Refusal to perform requested testing is most often warranted for testing for carrier status and for genetic predisposition to late onset disease. The author concludes her analysis by discussing why it is appropriate to give increasing deference to the views of the child as the child grows older. (shrink)

In the two centuries covered by this volume, from about AD 250 to 450, the Roman Empire suffered a period of chaos followed by drastic administrative and military reorganization. Simultaneously Christianity emerged as a new religious force, to be first recognized by Constantine and then eventually to become the official religion of the Roman state. The old pagan culture continued to provide the basis for education and the staple literary diet of the leisured classes; but it now had perforce to (...) coexist and indeed to compete with a new, specifically Christian-oriented literature. These and associated developments are reflected in the Latin books of the period. Of the traditional forms and genres, some atrophied, some were transformed and invigorated; and yet others, such as autobiography in something like the modern sense, emerged in response to the pressures of the times. Professor Browning's masterly and comprehensive survey is mostly concerned with pagan literature, but takes into account Christian texts written in classical forms and directed at classically educated readers. The volume ends with a chapter on Apuleius by Professor Walsh, followed by a brief Epilogue from the same hand, sketching the part played by classical studies in the formation of the Latin literature of the Middle Ages. (shrink)

In a preceding paper [1] it was shown that quantum logic, given by the tableaux-calculus Teff, is complete and consistent with respect to the dialogic foundation of logics. Since in formal dialogs the special property of the 'value-definiteness' of propositions is not postulated, the calculus $T_{eff}$ represents a calculus of effective (intuitionistic) quantum logic. Beginning with the tableaux-calculus the equivalence of $T_{eff}$ to calculi which use more familiar figures such as sequents and implications can be investigated. In this paper we (...) present a sequents-calculus of Gentzen-type and a propositional calculus of Brouwer-type which are shown to be equivalent to $T_{eff}$ . The effective propositional calculus provides an interpretation for a lattice structure, called quasi-implicative lattice. If, in addition, the value-definiteness of quantum mechanical propositions is postulated, a propositional calculus is obtained which provides an interpretation for a quasi-modular orthocomplemented lattice which, as is well-known, has as a model the lattice of subspaces of a Hilbert space. (shrink)

This paper is based on a semantic foundation of quantum logic which makes use of dialog-games. In the first part of the paper the dialogic method is introduced and under the conditions of quantum mechanical measurements the rules of a dialog-game about quantum mechanical propositions are established. In the second part of the paper the quantum mechanical dialog-game is replaced by a calculus of quantum logic. As the main part of the paper we show that the calculus of quantum logic (...) is complete and consistent with respect to the dialogic semantics. Since the dialoggame does not involve the 'excluded middle' the calculus represents a calculus of effective (intuitionistic) quantum logic. In a forthcoming paper it is shown that this calculus is equivalent to a calculus of sequents and more interestingly to a calculus of propositions. With the addition of the 'excluded middle' the latter calculus is a model for the lattice of subspaces of a Hilbert space. (shrink)

For--whatever our eventual sphere of control--the realm of fact is there first and always for our docility. Observ- ing is mental submission. Bacon is right: to master nature we must first obey her. Facts are to be received, learned, set in order: but who will say they are to be understood? They cannot be deduced: they are what they are. Here we meet the problem of these lectures. If man is to fathom his destiny, not to say guide it, must (...) his thinking not penetrate world fact as well as world law? And is this possible? (shrink)