Isolated neutron stars undergoing non-radial oscillations are expected to emit gravitational waves in the kilohertz frequency range. To date, radio astronomers have located about 1,300 pulsars, and can estimate that there are about 2×108 neutron stars in the galaxy. Many of these are surely old and cold enough that their interiors will contain matter in the superfluid or superconducting state. In fact, the so-called glitch phenomenon in pulsars (a sudden spin-up of the pulsar's crust) is best described by assuming the (...) presence of superfluid neutrons and superconducting protons in the inner crusts and cores of the pulsars. Recently there has been much progress on modelling the dynamics of superfluid neutron stars in both the Newtonian and general relativistic regimes. We will discuss some of the main results of this recent work, perhaps the most important being that superfluidity should affect the gravitational waves from neutron stars (emitted, for instance, during a glitch) by modifying both the rotational properties of the background star and the modes of oscillation of the perturbed configuration. Finally, we present an analysis of the so-called zero-frequency subspace (i.e., the space of time-independent perturbations) and determine that it is spanned by two sets of polar (or spheroidal) and two sets of axial (or toroidal) degenerate perturbations for the general relativistic system. As in the Newtonian case, the polar perturbations are the g-modes which are missing from the pulsation spectrum of a non-rotating configuration, and the axial perturbations should lead to two sets of r-modes when the degeneracy of the frequencies is broken by having the background rotate. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Philosophy and Rhetoric 36.3 (2003) 207-222 [Access article in PDF] Burke Contra Kierkegaard:Kenneth Burke's Dialectic via Reading Søren Kierkegaard G. L. Ercolini Isaac—to his children Lived to tell the tale— Moral—with a Mastiff Manners may prevail. —Emily Dickinson Kenneth Burke employs the term dialectic throughout his works and yet, despite its profuse recurrence, the term remains ambiguous. Much secondary scholarship has focused on Burke and dialectics, and still the (...) term in Burke remains—if not already complicated—cloudy. 1 Part of the difficulty regarding this term stems from Burke's own ambiguity; another part from critics' tendency to rely on Burke's own use and definitions for clarification of this concept. The arguments have been helpful and illuminating, yet Burke's dialectic can be further clarified by going beyond what Burke means by the term by focusing on how he deploys dialectical criticism in his own work. 2 This article focuses on Burke's appropriation of the existential thinker Søren Kierkegaard as a particularly clear and remarkable instance of the operation of Burke's dialectic in his criticism. I maintain that although Burke's reading of Kierkegaard is arguably a misreading, his strategic appropriation of Kierkegaard in A Rhetoric of Motives (1950) not only serves as a clear deployment of the dialectic, but also functions as a foil against which Burke defines his own critical method. Burke's reading of Kierkegaard emphasizes the function of resolution in Burke's critical project.The current literature, although quite informative, does not put Burke's dialectic in sharp focus. Rueckert argues that Burkean dialectics "is really a branch of what Burke was to later call logology, the study of words, of language, of symbol systems" (1994, 14). Heath claims that dialectic "is an analytical tool to help us diagnose perspectives so that we can [End Page 207] examine whether they make sense and consider their implications for social relations" (1986, 162). Crusius contends that, "dialectic for Burke is the study of verbal universes, the disinterested pursuit of a vocabulary's implications" (1986, 24). While Brummett and Crusius show similarity between Hegel's and Burke's dialectic, Heath and Wess distinguish Burke's dialectic from Hegelian idealism and teleological history respectively. 3 Most of the arguments concerning Burke and dialectic focus on "The Dialectic of Constitutions" in A Grammar of Motives (1969), while A Rhetoric of Motives (1962), where Burke identifies humankind as homo dialecticus, is hardly engaged with regard to this concept. 4 Burke's working through Kierkegaard in A Rhetoric of Motives demonstrates Burke's dialectical criticism—thus providing an operational account of Burke's dialectic—and allows for his revelation of the three motives in the realm of rhetoric: the Order, the Secret, and the Kill. 5 And yet, despite this centrality of Fear and Trembling, surprisingly little has been said about Burke's Kierkegaard beyond passing mention. 6Despite editorial advice to the opposite regarding an article that would later become a part of the book, Burke evidently regarded his reading of Kierkegaard as important. Joseph Bennett, editor of Hudson Review, responded as follows to Burke's 1948 submission of the article entitled "Imagery of Killing": "I would like to request that you eliminate Kierkegaard from the article in question, confining it simply to literary exegesis and excluding the philosopher theologian." 7 Although he complied for the article, Burke retained his reading of Kierkegaard in A Rhetoric of Motives. Despite the lack of attention given to it, Burke's engagement with Kierkegaard clearly demonstrates how Burke views ethical criticism as that which resolves opposition, negation, and paradox to a higher order. Burke contra Kierkegaard The section entitled "Order" in A Rhetoric of Motives contains a detailed, twenty-three-page discussion of Kierkegaard's Fear and Trembling. In this discussion, Burke primarily attacks Kierkegaard for encouraging what Burke enigmatically and elliptically identifies as the "cult of the Kill."Burke's portrayal of Kierkegaard is hardly flattering: at the crescendo of his analysis in A Rhetoric of Motives he claims that thinking such as Kierkegaard... (shrink)

For Hannah Arendt, the promise serves as currency in a world where predictability of outcome in the realm of human action is impossible, where courage is required in order to submit oneself in word and deed in the public realm, and where forgiveness serves as recourse when things go differently than hoped. Each of these points in Arendt's political philosophy is indebted to Immanuel Kant, a thinker who is often characterized as rejecting rhetoric on aesthetic and moral grounds alike. In (...) Kant and the Promise of Rhetoric, Scott Stroud takes up the apparently straightforward but ultimately complicated question of Immanuel Kant's treatment of, and disposition toward, rhetoric.While Kant is typically characterized as... (shrink)

A highly original reading of Immanuel Kant that demonstrates his interest in the social realm of human interaction.

A function is recursive (in given operations) if its values are computed explicitly and uniformly in terms of other "previously computed" values of itself and (perhaps) other "simultaneously computed" recursive functions. Here, "explicitly" includes definition by cases. We investigate those recursive functions on the structure $\mathbf{N} = \langle \omega, 0, \operatorname{succ,pred}\rangle$ that are computed in terms of themselves only, without other simultaneously computed recursive functions.

1. Sae sidae rŭl yŏrŏ gan saramdŭl -- 2. Ŏdum ŭi sidae.

Criticises G. E. Moore’s highly influential proposal that ascriptions of agent ability implying freedom of choice or action, what the agent could do, are analyzable as conditional statements regarding what the agent would do under certain circumstances. Austin objects against Moore that some uses of ‘if’ are non-conditional and goes on to examine the uses of these non-conditional cases. Moore’s proposal also lies at the heart of some compatibilist theories of free will and determinism. Austin argues determinism to be a (...) pseudo-problem, so long as it remains a notion that is not itself clear cut. (shrink)

From the materialist stance that I find compelling, the metaproblem of consciousness -- explaining why the problem of consciousness seems hard -- is hardly distinct from the 'easy' problem of explaining how the underlying physical/computational system works, and how it gives rise to perceptions of its own functioning. I discuss several confusions that might plausibly arise in that process, and propose that these confusions could create apparent gaps, ontological and epistemic, in materialist accounts of consciousness, thereby making the hard problem (...) hard. Inversely, resolving these confusions may help solve the hard problem. (shrink)