The thesis of 3D/4D equivalence states that every three-dimensional description of the world is translatable without remainder into a four-dimensional description, and vice versa. In representing an object in 3D or in 4D terms we are giving alternative descriptions of one and the same thing, and debates over whether the ontology of the physical world is "really" 3D or 4D are pointless. The twins paradox is shown to rest, in relativistic 4D geometry, on a reversed law of triangle inequality. But (...) considering the twins as 3D beings who age through time, the paradox implies that time passes at different rates in different reference frames, and therefore that the concept of a single global or Absolute time is unsustainable. (shrink)

This paper considers a possible national cultural and scientific synthesis which failed to take place: namely the integration of the Central European theoretical physicist Erwin Schrödinger into the primarily experimental orientations of the Oxford physics of the 1930s. We also consider the effect of the Oxford social and intellectual atmosphere generally, incluing the persistence of previous traditions which undervalued Science relative to the Arts, and University research relative to tutorial provision in the Colleges. The Oxford situation is then briefly contrasted (...) to that which Schrödinger later found in Dublin between 1939 and 1956, and which was to have a significantly more productive outcome. (shrink)

To avoid the necessity of relying on trust in the matter of scientific authorship, most biomedical journals have adopted the uniform requirements for manuscripts submitted to biomedical journals, which are produced by the International Committee of Medical Journal Editors .1 The scientific journals that are members of the ICMJE routinely ask contributors to sign a statement that they accept full responsibility for the conduct of the study, had access to the data, and controlled the decision to publish. They even request (...) and publish information about the contributions of each person named as having participated.2,3 It turns out, however, that these requirements do …. (shrink)

As a historian of logic, I am frequently puzzled by the things which people have to say about the relationship between mathematical logic and some other kind of logic which is variously described as ‘intentional’ and ‘traditional.’ Part of my puzzlement arises from my failure to understand precisely what kind of system is being offered under the guise of intentional logic. I have always taken it that logic is concerned with valid inferences, with showing us how we may legitimately derive (...) a conclusion from a set of premisses; yet the validation of inferences seems to be the least of the concerns of the intentional logician. He says that it can be done, but he does not bother to show us how. My purpose in this paper is to list some of the sources of my puzzlement in the hope that an exponent of intentional logic will show me how they can be resolved, and how their resolution will contribute to the building of a system (however informal) in which different types of argument can be validated. (shrink)

In his (2004), Randolph Clarke assesses an important version of an influential argument against libertarianism about metaphysical freedom. Clarke calls the anti-libertarian argument he evaluates the Contrast Argument. It targets the following claim: there could be an undetermined free act done by S such that S would have freely done something else had S not done the act in question. This modal claim will be endorsed not only by proponents of main brands of libertarianism, but also by action theorists of (...) other stripes – including many compatibilists. Clarke aims to defend the Contrast Argument from a prominent objection by developing a novel case for the premise under attack. I show that Clarke's attempted defense of the Contrast Argument fails, thereby protecting the relevant libertarian and compatibilist positions. In brief, Clarke's argument depends on an ambiguous principle, each available reading of which leaves some or other premise of his argument unjustified. (shrink)

In Part I of this paper I attempt to present, in more or less summary fashion, some well-known difficulties in the concept of deontic morality , as shown by certain features of deontic moral discourse. I make no great claims for originality here, although perhaps there may be some virtue in the presentation and ordering. In any case, Part I is a necessary preliminary to Part II, where I attempt to defend the rationality of and the necessity for deontic language (...) against some recent attacks. (shrink)

The ordinary Latin words for ‘lonian’ are lonicus and lonius. Ovid does not use the former at all, and except for one problematical instance applies the latter only to the Ionian Sea . Copyists, editors, and lexicographers, however, credit him, and him only, with Ioniacus, supposedly attested in two passages of almost identical wording.

Rhetorica approaches armed, sword drawn, announcing the persuasive allure of violence. Whether with real or metaphorical weapons people can be "terrifying and eloquent," to borrow a phrase from Philippe-Joseph Salazar's Words Are Weapons: Inside ISIS's Rhetoric of Terror. The iconic image of Rhetorica's sword emerged from the early modern era of European rhetorical thinking, but the image is one with the violent symbolism that has been attached to rhetoric throughout its history and across cultures. The Greco-Roman rhetorical tradition abounds with (...) examples, deriving in part from the Aristotelian observation that fear can be manipulated for persuasive purposes... (shrink)

In the third century BC Rome embarked on the expansion which was ultimately to leave her mistress of the Mediterranean world. As part of that expansion a national literature arose, springing from the union of native linguistic energy with Greek literary forms. Shortly after the middle of the century the first Latin play took the stage; by 100 BC most of the important genres invented by the Greeks - epic, tragedy, comedy, historiography, oratory - were solidly established in their adoptive (...) Roman forms, and a new genre, satire, had been born. The chapters in this volume describe and analyse the process of creative adaptation which shaped the beginnings of Latin literature and laid the foundations for its future development as one of the great literatures of the world. Essential background is provided by introductory chapters on readers and critics in the Roman world. In these are described the form of the books themselves and the conditions under which they were produced, circulated and read. The whole volume offers an indispensable introduction to the understanding of the nature and quality of Latin literature. (shrink)

We argue that on logical grounds the constructivist algorithms mentioned by Quartz & Sejnowski (Q&S) do not resolve the learning paradox. In contrast, a neural network might acquire a more powerful structure by means of phase transitions. The latter kind of developmental mechanism can be in agreement with the constructivist manifesto.

Lorazepam has been repeatedly shown to induce memory impairments. The effects of this benzodiazepine on the processes involved in the strategic regulation of memory accuracy have not as yet been explored. An experimental procedure that delineates the role of monitoring and control processes was used. Fifteen lorazepam and 15 placebo subjects were examined using a semantic memory task that combined both a forced- and a free-report option and a no-incentive and an incentive condition. Memory accuracy was lower in the lorazepam (...) than in the placebo group. Lorazepam impaired control sensitivity (the extent to which volunteering of answers is affected by the confidence judgments). While the absolute aspect of monitoring was impaired (calibration scores), both the discriminative aspect (the ability to distinguish between correct and incorrect answers) and the response criterion setting (the confidence threshold set for volunteering a report) were spared. The pharmacological dissociation between monitoring effectiveness and control sensitivity indicates that these two components involve distinct processes. (shrink)