Parrots prepare for vocalization by a ventro-caudal retraction of the larynx. This laryngeal movement, which “frames” vocal sequences, is similar to a movement used by pigeons as a preparation for suction drinking. The air-pressure events involved in such movements can trigger either suction drinking or vocalization. This suggests a possible evolutionary link between these ingestive and vocal mechanisms.

(2005). BOOK REVIEW of Teaching at the Crossroads of Faith and School: The Teacher as Prophetic Pragmatist. Educational Studies: Vol. 37, No. 3, pp. 286-290.

The equivalence of leaf languages of tree adjoining grammars and monadic linear context-free grammars was shown about a decade ago. This paper presents a proof of the strong equivalence of these grammar formalisms. Non-strict tree adjoining grammars and monadic linear context-free grammars define the same class of tree languages. We also present a logical characterisation of this tree language class showing that a tree language is a member of this class iff it is the two-dimensional yield of an MSO-definable three-dimensional (...) tree language. (shrink)

Michael A. PetersBeijing Normal UniversityMy deepest condolences to Pepe, Dom and Marcus and to Jim’s grandchildren. Tina and I spent a lot of time at the Marshall family home, often attending dinn...

According to Jim Pryor’s dogmatism, when you have an experience with content p, you often have prima facie justification for believing p that doesn’t rest on your independent justification for believing any proposition. Although dogmatism has an intuitive appeal and seems to have an antisceptical bite, it has been targeted by various objections. This paper principally aims to answer the objections by Roger White according to which dogmatism is inconsistent with the Bayesian account of how evidence affects our rational credences. (...) If this were true, the rational acceptability of dogmatism would be seriously questionable. I respond that these objections don’t get off the ground because they assume that our experiences and our introspective beliefs that we have experiences have the same evidential force, whereas the dogmatist is uncommitted to this assumption. I also consider the question whether dogmatism has an antisceptical bite. I suggest that the answer turns on whether or not the Bayesian can determine the priors of hypotheses and conjectures on the grounds of their extra-empirical virtues. If the Bayesian can do so, the thesis that dogmatism has an antisceptical bite is probably false. (shrink)

This collection - assembled by the author in 1995 - includes all his articles then published that he thought worthy of preserving. Contents. 1. Hutcheson, Hume and the Ontology of Morals. (1985) - A critique of David Norton's 1982 book David Hume - Common Sense Moralist, Sceptical Metaphysician. 2. Hume, Spencer and the Standard of Morals. (1983) 3. Egoism and Rigorism: Spencer's Resolution of a Moral Paradox. (1995) - not previously published. 4. On distinguishing between Love and Lust. (1977) 5. (...) Love and Lust revisited: Intentionality, Homosexuality and Moral Education. (1988) - A critique of aspects of Roger Scruton's 1986 book Sexual Desire. 6. In Defence of Gay Lessons. (1988) 7. Homosexuality and Education: a reply to Jim Ferguson. (1990) 8. The Two Minds of Roger Scruton. (1991) 9. Public Schools, Private Privilege and Common Sense. (1985) - A defence of independent education. 10. Was Hume's Natural History of Religion inspired by Mandeville's Fable of the Bees Part II? (1995). The clear textual parallels here noted were not noticed by Tom Beauchamp in his 2007 text of NHR for the Clarendon Edition of Hume's works. (shrink)

Nico Silins has proposed and defended a form of Liberalism about perception that, he thinks, is a good compromise between the Dogmatism of Jim Pryor and others, and the Conservatism of Roger White, Crispin Wright, and others. In particular, Silins argues that his theory can explain why having justification to believe the negation of skeptical hypotheses is a necessary condition for having justification to believe ordinary propositions, even though (contra the Conservative) the latter is not had in virtue of the (...) former. I argue that Silins's explanation is unsuccessful, and hence that we should prefer either White/Wright-style Conservatism (which can explain this necessary condition) or Pryor-style Dogmatism (which denies that this is a necessary condition). (shrink)

This is the first collection of papers covering the main trends in moral British philosophy in the 20th century. It has three sections. Roots, Theories and Applications. The articles are signed by: C. Kirwan, Jim MacAdam,Rom Harre, Catherine Audard, Roger Crisp, David McNaughton, Onora O'Neill, John Lucas, Bernard Williams.

Aceasta este prima colectie de lucrari care acopera principalele directii in filosofia morala britanica. Sunt trei sectiuni: Radacini, Teorii si Aplicari Articolele sunt semnate de: C. Kirwan, Jim MacAdam,Rom Harre, Catherine Audard, Roger Crisp, David McNaughton, Onora O'Neill, John Lucas, Bernard Williams.

The demanding frontier life of My Ántonia or Little House on the Prairie may be long gone, but the idyllic small town still exists as a cherished icon of American community life. Yet sprawl and urban density, rather than small towns and farms, are the predominant features of our modern society, agribusiness and other commercial forces have rapidly taken over family farms and ranches, and even the open spaces we think of as natural retreats only retain the barest façade of (...) their former frontier austerity. The fading communities, social upheaval, and enduring heritage of the Northern Plains are the subject of Jim Dow’s Marking the Land, a stirring photographic tribute to the complex and unyielding landscape of North Dakota. Jim Dow began making pilgrimages to this remote territory in 1981 and, with a commission from the North Dakota Museum of Art, he took photographs of the passing human presence on the land. The simple, stolid pieces of architecture carved out against the Dakota skies—whether the local schoolhouse, car wash, prison, homes, hunting lodge, or churches—evoke in their spare lines and weather-battered frames the stoic and toughened spirit of the people within their walls. Folk art is also an integral part of the landscape in Dow’s visual study, and he examines the subtle evolution of local craftsmanship from homemade sculptures, murals, and carvings to carefully crafted pieces aimed at tourists. Anchoring all of these explorations is the raw and striking landscape of the North Dakota plains. Marking the Land is a moving reflection by a leading American photographer on the state of the Northern Plains today, forcing us all to rethink our conceptions of America’s forgotten frontier. (shrink)

Professor Sir Roger Penrose's work, spanning fifty years of science, with over five thousand pages and more than three hundred papers, has been collected together for the first time and arranged chronologically over six volumes, each with an introduction from the author. Where relevant, individual papers also come with specific introductions or notes. The first volume covers the beginnings of a career that is ground-breaking from the outset. Inspired by courses given by Dirac and Bondi, much of the early published (...) work involves linking general relativity with tensor systems. Among his early works is the seminal 1955 paper, 'A Generalized Inverse for Matrices', his previously unpublished PhD and St John's College Fellowship theses, and from 1967, his Adam's Prize-winning essay on the structure of space-time. Add to this his 1965 paper, 'Gravitational collapse and space-time singularities', and the 1967 paper that introduced a remarkable new theory, 'Twistor algebra', and this becomes a truly stellar procession of works on mathematics and cosmology. (shrink)

Professor Sir Roger Penrose is one of the truly original thinkers of our time. He has made several remarkable contributions to science, from quantum physics and theories of human consciousness to relativity theory and observations on the structure of the universe. Unusually for a scientist, some of his ideas have crossed over into the public arena. Now his work, spanning fifty years of science, with over five thousand pages and more than three hundred papers, has been collected together for the (...) first time and arranged chronologically over six volumes, each with an introduction from the author. Where relevant, individual papers also come with specific introductions or notes. (shrink)

Professor Sir Roger Penrose's work, spanning fifty years of science, with over five thousand pages and more than three hundred papers, has been collected together for the first time and arranged chronologically over six volumes, each with an introduction from the author. Where relevant, individual papers also come with specific introductions or notes. Many important realizations concerning twistor theory occurred during the short period of this third volume, providing a new perspective on the way that mathematical features of the complex (...) geometry of twistor theory relate to actual physical fields. Following on from the nonlinear graviton construction, a twistor construction was found for (anti-)self-dual electromagnetism allowing the general (anti-)self-dual Yang-Mills field to be obtained. It became clear that some features of twistor contour integrals could be understood in terms of holomorphic sheaf cohomology. During this period, the Oxford research group founded the informal publication, Twistor Newsletter. This volume also contains the influential Weyl curvature hypothesis and new forms of Penrose tiles. (shrink)

Professor Sir Roger Penrose's work, spanning fifty years of science, with over five thousand pages and more than three hundred papers, has been collected together for the first time and arranged chronologically over six volumes, each with an introduction from the author. Where relevant, individual papers also come with specific introductions or notes. Among the new developments that occurred during this period was the introduction of a particular notion of 'quasi-local mass-momentum and angular momentum', the topic of Penrose's Royal Society (...) paper. Many encouraging results were initially obtained but, later, difficulties began to emerge and remain today. Also, an extensive paper (with Eastwood and Wells) gives a thorough account of the relation between twistor cohomology and massless fields. This volume witnesses Penrose's increasing conviction that the puzzling issue of quantum measurement could only be resolved by the appropriate unification of quantum mechanics with general relativity, where that union must involve an actual change in the rules of quantum mechanics as well as in space-time structure. Penrose's first incursions into a possible relation between consciousness and quantum state reduction are also covered here. (shrink)

Professor Sir Roger Penrose's work, spanning fifty years of science, with over five thousand pages and more than three hundred papers, has been collected together for the first time and arranged chronologically over six volumes, each with an introduction from the author. Where relevant, individual papers also come with specific introductions or notes. Publication of The Emperor's New Mind (OUP 1989) had caused considerable debate and Penrose's responses are included in this volume. Arising from this came the idea that large-scale (...) quantum coherence might exist within the conscious brain, and actual conscious experience would be associated with a reduction of the quantum state. Within this collection, Penrose also proposes that a twistor might usefully be regarded as a source (or 'charge') for a massless field of spin 3/2, suggesting that the twistor space for a Ricci-flat space-time might actually be the space of such possible sources. Towards the end of the volume, Penrose begins to develop a quite different approach to incorporating full general relativity into twistor theory. This period also sees the origin of the Diósi-Penrose proposal. (shrink)

Professor Sir Roger Penrose's work, spanning fifty years of science, with over five thousand pages and more than three hundred papers, has been collected together for the first time and arranged chronologically over six volumes, each with an introduction from the author. Where relevant, individual papers also come with specific introductions or notes. This sixth volume describes an actual experiment to measure the length of time that a quantum superposition might last (developing the Diósi-Penrose proposal). It also discusses the significant (...) progress made in relation to incorporating the 'googly' information for a gravitational field into the structure of a curved twistor space. Penrose also covers such things as the geometry of light rays in relation to twistor-space structures, the utility of complex numbers in drawing three-dimensional shapes, and the geometrical representation of different types of musical scales. The turn of the millennium was also an opportunity to reflect on progress in many areas up until that point. (shrink)

Professor Sir Roger Penrose's work, spanning fifty years of science, with over five thousand pages and more than three hundred papers, has been collected together for the first time and arranged chronologically over six volumes, each with an introduction from the author. Where relevant, individual papers also come with specific introductions or notes. Developing ideas sketched in the first volume, twistor theory is now applied to genuine issues of physics, and there are the beginnings of twistor diagram theory (an analogue (...) of Feynman Diagrams). This collection includes joint papers with Stephen Hawking, and uncovers certain properties of black holes. The idea of cosmic censorship is also first proposed. Along completely different lines, the first methods of aperiodic tiling for the Euclidean plane that come to be known as Penrose tiles are described. This volume also contains Penrose's three prize-winning essays for the Gravity Foundation (two second places with both Ezra Newman and Steven Hawking, and a solo first place for 'The Non-linear graviton'). (shrink)

Roger North's The Musicall Grammarian 1728 is a treatise on musical eloquence in all its branches. Of its five parts, I and II, on the orthoepy, orthography and syntax of music, constitute a grammar; III and IV, on the arts of invention and communication, form a rhetoric; and V, on etymology, consists of a history. Two substantial chapters of commentary introduce the text, which is edited here for the first time in its entirety: Jamie Kassler places his treatise within the (...) broader context not only of North's musical and non-musical writings but also their relation to the intellectual ferment of the seventeenth and eighteenth centuries and Mary Chan describes physical and textual aspects of the treatise as evidence for North's processes of thinking about musical thinking. (shrink)

This paper defends moral testimony pessimism, the view that there is something morally or epistemically regrettable about relying on the moral testimony of others, against several arguments in Lillehammer. One central such argument is that reliance on testimony is inconsistent with the exercise of true practical wisdom. Lillehammer doubts whether such reliance is always objectionable, but it is important to note that moral testimony pessimism is best understood as a view about the pro tanto, rather than the overall, badness of (...) relying on testimony. One must also be clear about what counts as genuine moral testimony: there will be morally charged occasions when a virtuous person will properly rely on the views of others. It can also plausibly be argued that relying on moral testimony may constitute a lack of full autonomy. After discussing some remaining issues concerning the definition of moral testimony, a possible analogy between lying and relying on testimony, and the implications of untrustworthiness for the truth of moral testimony pessimism, the paper ends with a return to the case against relying on moral testimony, grounded on a conception of the role of knowledge and understanding in virtue. (shrink)

On Becoming an Effective Teacher presents the final unpublished writings of Rogers and as such has a unique historical value. It also documents the research results of four highly relevant, related but independent studies which comprise the biggest collection of data ever accumulated to test a person-centred theory in the field of education. This body of comprehensive research on effective teaching was accomplished over a twenty-year period in 42 States in the U.S. and in six other countries including the (...) UK, Germany, Brazil, Canada, Israel, and Mexico, and is highly relevant to the concerns of teachers, psychologists, students, and parents. The principal findings of the research in this book show that teachers and schools can significantly improve their effectiveness through programs focusing on facilitative interpersonal relationships. Teachers who either naturally have, or are trained to have empathy, genuineness (congruence), and who prize their students (positive regard) create an important level of trust in the classroom and exert significant positive effects on student outcomes including achievement scores, interpersonal functioning, self-concept, and attendance. The dialogues between Rogers and Lyon offer a unique and timeless perspective on teaching, counselling and learning. The work of Reinhard Tausch on person-centered teaching to counselors, parents, athletics, and even textbook materials, as well as research on the interactions of teachers and students, is among the most thorough and rigorous research ever accomplished on the significance and potential of a person-centered approach to teaching and learning. (shrink)

In addition the book also includes a good number of unpublished essays.

In this book, the controversial Jesuit priest, Roger Lenaers, deals with the need for a new idea of God, one which does not stand out as an anomaly in the modern world. In this he is relinquishing the image of a Father and Ruler God, which is largely anthropomorphic and which sees God as being outside the cosmos. The book deals with the resulting changes with regard to personal prayer and, especially, to the liturgy and the sacraments. This new conception (...) of God brings a fundamentally new understanding of the significance of the Bible, which ceases to be an infallible book of oracles and is now to be seen as specially inspired human words-but not the word of God. But how can a Christian existence be lived without diminishing its substance in atheistic modernity? It is to be lived essentially in dedication, inspired by the spirit of Jesus, to working for a truly human world, the "Kingdom of God." Author Lenaers finds, in this battle against egoism, greed and contempt for humanity, a surprising ally: atheistic humanism which grew from the soil of the Christian tradition. [Subject: Religious Studies, Christian Studies]. (shrink)

A rich collection of critical essays, authored by philosophers and practicing artists, examining Deleuze and Guattari's engagement with a broad range of art forms.

Donald Davidson finds folk-psychological explanations anomalous due to the open-ended and constitutive conception of rationality which they employ, and yet monist because they invoke an ontology of only physical events. An eliminative materialist who thinks that the beliefs and desires of folk-psychology are mere pre-scientific fictions cannot accept these claims, but he could accept anomalous monism construed as an analysis, merely, of the ideological and ontological presumptions of folk-psychology. Of course, eliminative materialism is itself only a guess, a marker for (...) material explanations we do not have, but it is made plausible by, inter alia, whatever difficulties we have in interpreting intentional folk-explanations realistically. And surely anomalous monism does require further explanation if it is to be accepted realistically and not dismissed as an analysis of a folk-idiom which is to be construed instrumentally at best. Some further explanation is needed of how beliefs, desires, etc. can form rational patterns which have ‘no echo in physical theory’ and yet those beliefs, desires etc. be physical events. To this end I propose to graft on to anomalous monism a modest version of functionalism. (shrink)

For more than 60 years, Jim Lambek has been a profoundly inspirational mathematician, with groundbreaking contributions to algebra, category theory, linguistics, theoretical physics, logic and proof theory. This Festschrift was put together on the occasion of his 90th birthday. The papers in it give a good picture of the multiple research areas where the impact of Jim Lambek's work can be felt. The volume includes contributions by prominent researchers and by their students, showing how Jim Lambek's ideas keep inspiring upcoming (...) generations of scholars. (shrink)

A generation of students at the Faculty of Theology of the K.U.Leuven have been introduced by Roger Burggraeve to the thoughts of Emmanuel Levinas. Levinas has been for him a true "master in thinking". For Levinas responsibility is heteronymous because it does not start from the "I" but from the epiphany of the other as the face, appealing to me not "to kill" but to promote him/her. In and through the appeal of the face, the difference between the other and (...) me - expressed in the irreducible alterity of the other - is, ethically speaking, the appeal to the highest "non-indifference": proximity without absorption. As Levinas' thinking carries on obvious Jewish-Talmudic imprint, Burggraeve was interested as to how the concept of responsibility can be connected to a biblically inspired ethic. In which way can the Levinasian view on responsibility enhance a Christian anthropology, and in particular that one articulated by Louvain personalism, and in its turn inspired by a Christian anthropology, so that it benefits from uniquely Christian accents? In this Festschrift for Roger Burggraeve, authors explore the theme of "Responsibility, God and Society" in order to answer two questions. What does Levinas' ethic of responsibility have to offer Christian theology? And vice-versa, what can Christian theology offer to contemporary ethical thought on personal, relational and societal responsibility. (shrink)

Speaking is so closely associated with making noises that such descriptions as ‘silent soliloquy’ and ‘soundless monologue’ have an air of paradox. Yet people frequently say things to themselves in such a way that not even a close observer has any reason to think they have done so. It is therefore tempting to suppose that on such occasions a sequence of surrogate speech sounds is produced in the person's head which he alone hears or introaudits, as if what distinguishes silent (...) inner speech from normal speech is that the word substitutes are conveniently hidden from all save their producer. (shrink)

Human beings talk and co-operate, they build and produce, they work to accumulate and exchange, they form societies, laws and institutions, and, in all these things the phenomenon of reason—as a distinct principle of activity—seems dominant. There are indeed theories of the human which describe this or that activity as central—speech, say, productive labour, or political existence. But we feel that the persuasiveness of such theories depends upon whether the activity in question is an expression of the deeper essence, reason (...) itself, which all human behaviour displays. (shrink)

He who has seen everything empty itself is close to knowing what everything is filled with. Emptiness is probably the most important philosophical and religious concept of Mahayana Buddhism. Its precise meaning has been explained differently by different schools and in different Buddhist cultures, but almost all Mahāyāna Buddhists would agree with the following characterization: Philosophically , emptiness is the term that describes the ultimate mode of existence of all phenomena, namely, as naturally ‘empty’ of enduring substance, or self-existence : (...) rather than being independently self-originated, phenomena are dependently originated from causes and conditions. Emptiness, thus, explains how it is that phenomena change and interact as they do, how it is that the world goes on as it does. Religiously , emptiness is the single principle whose direct comprehension is the basis of liberation from samsāra, and ignorance of which, embodied in self-gasping is the basis of continued rebirth – hence suffering – in samsāra. (shrink)

What is the relation of the biological to the social sciences? Fierce battles are being currently fought over this question and much hangs on the answer. If society is taken as an irreducible category which can only be understood in its own terms, the social sciences can feel safe from the sinister designs of other disciplines. Yet it is a commonplace that cultures vary, and we humans are prone to look at the differences rather than the similarities between them. The (...) result can be a thoroughgoing relativism. If culture cannot be understood by means of any non-cultural categories, cultural differences themselves can be accepted as the ultimate truth about man. When everything is cultural, even the notion of a non-cultural category can seem to be a ludicrous contradiction in terms. The categories with which we think are the product of our culture, or so we are told. Instead of our being able to understand culture in terms of anything beyond itself, our understanding appears totally moulded by the society to which we belong. Any theory can thus be seen as merely the expression of the beliefs of a particular society. (shrink)

A corrected and extensively annotated version of the sole meeting between two of the most important figures in twentieth-century intellectual life.

Legal theory for the purposes of this essay is the theory of mundane law—that is, our law. The legal system of a modern Western democracy is the phenomenon legal theory is trying to represent perspicuously. Such a legal system may be characterized prephilosophically as an institutionalized normative system. The associated institutions include legislatures, courts, police forces, civil services, royal families, and the like. The associated norms are of three kinds—norms directly enjoining, permitting or proscribing behaviour on the part of the (...) norm-subjectss; norms for facilitating the creation of social arrangements between norm-subjects; norms for the creation, variation, administration, application and enforcement of norms of the first two kinds. (shrink)

Professor Roger T. Ames is Professor in the Department of Philosophy at the University of Hawai‘i, Manoa. The following is a short excerpt from an interview with Professor Ames that took place on the eve of 2009 PESA Conference, December 1, 2009. Heesoon Bai, Editor of Paideusis, accompanied by Avraham Cohen, interviewed Professor Ames in his office.

I argue in this paper that, like the Pyrrhonism of Sextus Empiricus, Wittgenstein’s response to negative–dogmatic skepticism in On Certainty turns on the attempt to free us from the demands of traditional philosophy and is therefore not a philosophical position, strictly speaking. Rather, it is a therapeutic metaphilosophy designed to bring into view (i.e., to illumine) the relationship between our everyday epistemic practices and those of philosophy such that we simultaneously come to recognize (a) what I call the pragmatic–transcendental self–standingness (...) of the everyday and (b) its philosophical–rational groundlessness. The Pyrrhonian illumination of the everyday is therapeutic in that it aims to purify our metadoxastic attitudes of dogmatism. (shrink)