The Periodic Table has the column of the noble gas atoms (He, Ne, Ar, Kr, Xe, Rn) as one of its main pillars. Indeed the inert chemical nature of their closed shell structure is so striking that it is sometimes extended to all such structures. Is it true however that any closed shell, say a closed d-subshell will denote a lack of chemical activity? Take the noble metals for instance, so renowned for their catalytic capacity. Platinum has 10 electrons in (...) its valence shell which makes one of its excited states to be a closed 5d10–6s0 state. Surely this state would not be expected to be crucial to the catalytic activity of platinum, or would it? Or take palladium whose ground state is precisely the 4d10–5s0 state, should we expect that an isolated Pd atom at near zero-point temperature would attack a closed-shell hydrogen molecule efficiently? We shall here show that this is precisely the case; the closed-shell excited states of nickel and platinum are indeed crucial, through symmetry avoided crossings, for their reactivity. Other valuable catalysts as ruthenium depend on their excited states with maximal d-shell occupancy for their activity. The most notable confirmation of this new finding; that closed d-shells are vital to the catalytic activity of noble metals however, is the case of palladium whose closed-shell ground state is indeed capable of attacking hydrogen and hydrocarbon molecules even at temperatures well below 10 K as was predicted theoretically and immediately confirmed experimentally. (shrink)
Hierarchical Bayesian models (HBMs) provide an account of Bayesian inference in a hierarchically structured hypothesis space. Scientific theories are plausibly regarded as organized into hierarchies in many cases, with higher levels sometimes called ‘paradigms’ and lower levels encoding more specific or concrete hypotheses. Therefore, HBMs provide a useful model for scientific theory change, showing how higher‐level theory change may be driven by the impact of evidence on lower levels. HBMs capture features described in the Kuhnian tradition, particularly the idea that (...) higher‐level theories guide learning at lower levels. In addition, they help resolve certain issues for Bayesians, such as scientific preference for simplicity and the problem of new theories. *Received July 2009; revised October 2009. †To contact the authors, please write to: Leah Henderson, Massachusetts Institute of Technology, 77 Massachusetts Avenue, 32D‐808, Cambridge, MA 02139; e‐mail: lhenders@mit.edu. (shrink)
Terry Horgan (with D. Henderson and G. Graham) defends a new general metaphilosophical position called postanalytic metaphilosophy (PAM). I raise some critical points connected with the application of PAM to the problem of freedom. I question the distinction between opulent and austere construals of philosophical concepts. According to Horgan compatibilism comports better overall with the relevant data than does incompatibilism. I raise some objections. At the end I argue that contextualism is an inadequate explanation of incompatibilistic intuitions.
Terry Horgan (with D. Henderson and G. Graham) defends a new general metaphilosophical position called postanalytic metaphilosophy (PAM). I raise some critical points connected with the application of PAM to the problem of freedom. I question the distinction between opulent and austere construals of philosophical concepts. According to Horgan compatibilism comports better overall with the relevant data than does incompatibilism. I raise some objections. At the end I argue that contextualism is an inadequate explanation of incompatibilistic intuitions.
The relationship of the author's intention to the meaning of a literary work has been a persistently controversial topic in aesthetics. Anti-intentionalists Wimsatt and Beardsley, in the 1946 paper that launched the debate, accused critics who fueled their interpretative activity by poring over the author's private diaries and life story of committing the 'fallacy' of equating the work's meaning, properly determined by context and linguistic convention, with the meaning intended by the author. Hirsch responded that context and convention are not (...) sufficient to determine a unique meaning for a text; to avoid radical ambiguity we must appeal to the author's intention, which actualizes one of the candidate meanings. Subsequent writers have defended refined versions of these views, and a variety of positions on the spectrum between them, in a debate that remains central to philosophical aesthetics. While much of the debate has focused on literature, similar questions arise with respect to the interpretation of visual artworks. Some of the readings listed below address this matter explicitly. Author Recommends: William K. Wimsatt and Monroe C. Beardsley, 'The Intentional Fallacy', Sewanee Review 54 (1946): 468–88. Locus classicus of the anti-intentionalist position: Wimsatt and Beardsley hold that appeal to the author's intention is always extraneous, since intention cannot override the role of linguistic convention and context in determining meaning. Criticism, they argue, should thus proceed by careful examination of the literary work rather than by sifting through biographical material that might hint at the author's intentions. E. D. Hirsch, Jr., Validity in Interpretation (New Haven, CT: Yale University Press, 1967). The seminal statement of actual intentionalism: Hirsch holds that 'meaning is an affair of consciousness and not of physical signs or things' (23), though he allows that linguistic convention constrains the meanings the author can intend for a particular utterance. He argues that the author's intention is necessary to fix meaning, since the application of conventions alone would typically leave a text wildly indeterminate. Alexander Nehamas, 'The Postulated Author: Critical Monism as a Regulative Ideal', Critical Inquiry 8 (1981): 133–49. Nehamas argues for a version of hypothetical intentionalism according to which interpretation is a matter of attributing an intended meaning to a hypothetical author, distinct from the historical writer. This view allows the interpreter to find meaning even in features of the work that may have been mere accidents on the part of the historical writer. Gary Iseminger, ed., Intention and Interpretation (Philadelphia, PA: Temple University Press, 1992). Intention and Interpretation is an outstanding collection including both classic and new essays representing most of the major viewpoints in the debate. Noël Carroll, 'Art, Intention, and Conversation', Intention and Interpretation , ed. Gary Iseminger (Philadelphia, PA: Temple University Press, 1992), 97–131. The essay defends modest actual intentionalism, according to which the work's meaning is one compatible both with the author's meaning intentions and with the conventionally allowable meanings of the text. Carroll holds that literature is on a continuum with ordinary conversation, to which an intentionalist analysis is apt; for this reason he rejects anti-intentionalism and hypothetical intentionalism, which emphasize the purported autonomy of literary works from their authors. Daniel Nathan, 'Irony, Metaphor, and the Problem of Intention', Intention and Interpretation , ed. Gary Iseminger (Philadelphia, PA: Temple University Press, 1992), 183–202. Nathan argues that even irony and metaphor, which are often thought to require an analysis in terms of the author's actual intentions, are in fact best understood on an anti-intentionalist approach. Jerrold Levinson, 'Intention and Interpretation in Literature', The Pleasures of Aesthetics: Philosophical Essays (Ithaca, NY: Cornell University Press, 1996), 175–213. Revised version of 'Intention and Interpretation: A Last Look', Intention and Interpretation , ed. Gary Iseminger (Philadelphia, PA: Temple University Press, 1992), 221–56. The essay defends a version of hypothetical intentionalism according to which the meaning of a literary work is the meaning that would be attributed to the actual author by members of the ideal audience. Levinson argues that literary works should be treated differently from everyday utterances, since it is a convention of literature that its works are substantially autonomous from their authors. Paisley Livingston, Art and Intention: A Philosophical Study (Oxford: Clarendon Press, 2005). Livingston examines competing accounts of the nature of intentions as they pertain to a variety of issues in the philosophy of art, including the ontology of art, the nature of authorship, and art interpretation. In chapter 6, Livingston argues for partial intentionalism, according to which some, but not all, of a work's meanings are non-redundantly determined by the author's intentions. Stephen Davies, 'Authors' Intentions, Literary Interpretation, and Literary Value', British Journal of Aesthetics 46 (2006): 223–47. Davies defends the value-maximizing view, according to which, when there is more than one conventional meaning consistent with the work's features, the meaning that should be attributed to the work is the one that makes the work out to be most aesthetically valuable. He allows for the attribution of multiple meanings when more than one candidate (approximately) maximizes the work's value. Online Materials: http://plato.stanford.edu/entries/beardsley-aesthetics/ Beardsley's Aesthetics (Michael Wreen) http://plato.stanford.edu/entries/conceptual-art/ Conceptual Art (Elisabeth Schellekens) http://plato.stanford.edu/entries/speech-acts/ Speech Acts (Mitchell Green) http://plato.stanford.edu/entries/hermeneutics/ Hermeneutics (Bjørn Ramberg and Kristin Gjesdal) Sample Syllabus: Week 1: Foundations 1. Wimsatt and Beardsley, 'The Intentional Fallacy'. 2. Livingston, 'What Are Intentions?', Art and Intention , 1–30. Weeks 2–3: Actual Intentionalism 1. Hirsch, Validity in Interpretation , ch. 1–2, 1–67. 2. Gary Iseminger, 'An Intentional Demonstration?', Intention and Interpretation , ed. Iseminger, 76–96. Optional reading: 1. Stephen Knapp and Walter Benn Michaels, 'Against Theory', Critical Inquiry 8 (1982): 723–742. 2. Stephen Knapp and Walter Benn Michaels, 'Against Theory 2: Hermeneutics and Deconstruction', Critical Inquiry 14 (1987): 49–58. Weeks 4–5: Modest, Moderate and Partial Intentionalism 1. Carroll, 'Art, Intention, and Conversation'. 2. Robert Stecker, Interpretation and Construction: Art, Speech, and the Law (Malden, MA: Blackwell, 2003), ch. 2, 29–51. 3. Livingston, 'Intention and the Interpretation of Art', Art and Intention , 135–74. Optional reading: 1. Carroll, 'Interpretation and Intention: The Debate between Hypothetical and Actual Intentionalism', Metaphilosophy 31 (2000): 75–95. 2. Stecker, 'Moderate Actual Intentionalism Defended', Journal of Aesthetics and Art Criticism 64 (2006): 429–38. Weeks 6–7: Hypothetical Intentionalism 1. William E. Tolhurst, 'On What a Text Is and How It Means', British Journal of Aesthetics 19 (1979): 3–14. 2. Nehamas, 'Postulated Author'. 3. Levinson, 'Intention and Interpretation in Literature'. Optional reading: 1. Nehamas, 'What an Author Is', Journal of Philosophy 83 (1986): 685–91. 2. Nehamas, 'Writer, Text, Work, Author', Literature and the Question of Philosophy , ed. A. J. Cascardi (Baltimore, MD: Johns Hopkins University Press, 1987), 265–91. 3. Levinson, 'Hypothetical Intentionalism: Statement, Objections, and Replies', Is There a Single Right Interpretation? , ed. M. Krausz (University Park, PA: Pennsylvania State University Press, 2002), 309–18. Week 8: The Value-Maximizing View 1. Davies, 'The Aesthetic Relevance of Authors' and Painters' Intentions', Journal of Aesthetics and Art Criticism 41 (1982): 65–76. 2. Davies, 'Authors' Intentions, Literary Interpretation, and Literary Value'. Weeks 9–10: Anti-Intentionalism 1. Beardsley, 'The Authority of the Text,' The Possibility of Criticism (Detroit: Wayne State University Press, 1970), 16–37. 2. Nathan, 'Irony, Metaphor, and the Problem of Intention'. 3. Nathan, 'Art, Meaning, and Artist's Meaning', Contemporary Debates in Aesthetics and the Philosophy of Art , ed. M. Kieran (Malden, MA: Blackwell, 2006), 282–95. Optional reading: 1. Beardsley, 'Intentions and Interpretations: A Fallacy Revived', The Aesthetic Point of View: Selected Essays , ed. M. J. Wreen and D. M. Callen (Ithaca, NY: Cornell University Press, 1982), 188–207. 2. Nathan, 'Irony and the Author's Intentions', British Journal of Aesthetics 22 (1982): 246–56. Sample Mini-Syllabus: Week 1: Foundations 1. Wimsatt and Beardsley, 'The Intentional Fallacy'. 2. Livingston, 'What Are Intentions?', Art and Intention , 1–30. Week 2: Actual and Modest Intentionalism 1. Hirsch, Validity in Interpretation , ch. 1–2, 1–67. 2. Carroll, 'Art, Intention, and Conversation'. Week 3: Hypothetical Intentionalism and Anti-Intentionalism 1. Levinson, 'Intention and Interpretation in Literature'. 2. Nathan, 'Irony, Metaphor, and the Problem of Intention'. Focus Questions 1. Is the difficulty of ascertaining the author's intentions a good reason to reject actual intentionalism? 2. Should literary works be seen as largely autonomous from their authors, even if we think that interpretation of ordinary utterances is properly a matter of ascertaining the speaker's intentions? 3. Are linguistic context and convention sufficient to determine the meaning of a literary work, or is the author's intention required to stave off an unacceptable degree of ambiguity? 4. Should the author's intentions about the genre or category to which the work belongs have a different status than intentions about the work's meaning? 5. Can the author's intentions have a non-redundant role to play in fixing meaning even if we take the role of context and linguistic convention seriously? 6. Should we expect the author's intention to play the same role (if any) in the interpretation of visual artworks that it plays in the interpretation of literature, or do differences between these two art forms require distinct approaches? (shrink)
PhD, Institute of Public Health, Unit of Medical Philosophy and Clinical Theory, University of Copenhagen, Øster Farimagsgade 5, P.O. Box 2099 1014 Copenhagen. Tel: +45 30 32 33 63; Email: s.lauridsen{at}pubhealth.ku.dk ' + u + '@' + d + ' '//--> Abstract Citizens’ consent to political decisions is often regarded as a necessary condition of political legitimacy. (...) Consequently, legitimate allocation of healthcare has seemed almost unattainable in contemporary pluralistic societies. The problem is that citizens do not agree on any single principle governing priorities among groups of patients. The Accountability for Reasonableness (A4R) framework suggests an ingenious solution to this problem of moral disagreement. Rather than advocating any substantive distributive principle, its advocates propose a feasible set of conditions, which, if met by decision makers at the institutional level, provide, so it is promised, legitimate decisions. While we agree that A4R represents an important contribution to the priority-setting debate, we challenge the framework in two respects. First, we argue that A4R, and more specifically the relevance condition of A4R, does not enable healthcare institutions to generally distinguish between relevant and irrelevant reasons for priority-setting. Second, we criticize Daniels’ and Sabin's argument that A4R and deliberative democracy constitute necessary and sufficient conditions of a feasible procedure for setting legitimate limits within healthcare. CiteULike Connotea Del.icio.us What's this?. (shrink)
La recherche conduite dans le cadre de la thèse de doctorat (CROUZIER 2003) a été focalisée sur l’analyse des liens professionnels tissés entre les dispositifs RASED et les équipes éducatives des écoles primaires. Nous avons co-construit les données nécessaires à leur compréhension et choisi des traitements combinant les avantages du quantitatif et du qualitatif. Nous avons en particulier retenu une approche statistique fondée sur l’analyse statistique textuelle (LEBART SALEM 1994) pour explorer le corpus construit à partir d’entretiens auprès d’un échantillon (...) de professionnels concernés par les aides spécialisées à l’école primaire. Le choix de l’approche statistique s’inscrit dans une conception du raisonnement statistique développée par J.C. Régnier (REGNIER 1998, 2002). L’opérationnalisation du traitement a été rendue possible par le recours à un outil informatique, le logiciel S.P.A.D. (Système Portable de l’Analyse des Données) du CISIA. Cet outil permet de décrypter les corpus obtenus par des méthodes d’analyse factorielle de correspondances multiples. Différentes procédures ont été appliquées aux corpus bruts puis codés. Cette approche “quantiqualitative”, apportant une plus-value interprétative, décrypte de façon singulière la complexité de la collaboration entre acteurs. Abstrac: This PhD dissertation (CROUZIER 2003) focuses on the analysis of the professional relationships between the French institutional comprehensive remedial scheme known as RASED and educational teams in primary schools. We have jointly identified the data relevant to a thorough understanding of such relationships, opting for a method of data processing combining the advantages of both quantitative and qualitative approaches. We have chiefly relied on a specific brand of textual statistics (LEBART SALEM 1994) in order to explore a corpus made up of interviews with the primary school staffs involved in the scheme. The statistical approach accords with the conception of statistical processing developed by JC Regnier (REGNIER 1998, 2002). The processing itself has been engineered thanks to CISIA’s software, known as SPAD (portable data processing system). It has enabled us to decrypt the different types of corpuses through Correspondence Analysis (CA). Both the raw and the coded corpuses have been submitted to different types of processing. The approach, combining quantitative and qualitative elements, opens up on to new powerful interpretative insights and sheds a new light on the intricate network of interaction between the people involved. (shrink)
Some have suggested that certain classical physical systems have undecidable long-term behavior, without specifying an appropriate notion of decidability over the reals. We introduce such a notion, decidability in (or d- ) for any measure , which is particularly appropriate for physics and in some ways more intuitive than Ko's (1991) recursive approximability (r.a.). For Lebesgue measure , d- implies r.a. Sets with positive -measure that are sufficiently "riddled" with holes are never d- but are often r.a. This explicates Sommerer (...) and Ott's (1996) claim of uncomputable behavior in a system with riddled basins of attraction. Furthermore, it clarifies speculations that the stability of the solar system (and similar systems) may be undecidable, for the invariant tori established by KAM theory form sets that are not d-. (shrink)
You recognize when you know something for certain, right? You "know" the sky is blue, or that the traffic light had turned green, or where you were on the morning of September 11, 2001--you know these things, well, because you just do. In On Being Certain , neurologist Robert Burton challenges the notions of how we think about what we know. He shows that the feeling of certainty we have when we "know" something comes from sources beyond our control and (...) knowledge. In fact, certainty is a mental sensation, rather than evidence of fact. Because this "feeling of knowing" seems like confirmation of knowledge, we tend to think of it as a product of reason. But an increasing body of evidence suggests that feelings such as certainty stem from primitive areas of the brain, and are independent of active, conscious reflection and reasoning. The feeling of knowing happens to us; we cannot make it happen. Bringing together cutting edge neuroscience, experimental data, and fascinating anecdotes, Robert Burton explores the inconsistent and sometimes paradoxical relationship between our thoughts and what we actually know. Provocative and groundbreaking, On Being Certain , will challenge what you know (or think you know) about the mind, knowledge, and reason. ROBERT BURTON, M.D. graduated from Yale University and University of California at San Francisco medical school, where he also completed his neurology residency. At age 33, he was appointed chief of the Division of Neurology at Mt. Zion-UCSF Hospital, where he subsequently became Associate Chief of the Department of Neurosciences. His non-neurology writing career includes three critically acclaimed novels. He lives in Sausalito, California. Visit his website at http://www.rburton.com/ “What do we do when we recognize that a false certainty feels the same as certainty about the sky being blue? A lesser guide might get bogged down in nail-biting doubts about the limits of knowledge. Yet Burton not only makes clear the fascinating beauty of this tangled terrain, he also brings us out the other side with a clearer sense of how to navigate. It's a lovely piece of work; I'm all but certain you'll like it. “ --David Dobbs, author of Reef Madness; Charles Darwin, Alexander Agassiz, and the Meaning of Coral “Burton has a great talent for combining wit and insight in a way both palatable and profound.” --Johanna Shapiro PhD, professor of Family Medicine at UC Irvine School of Medicine “A new way of looking at knowledge that merits close reading by scientists and general readers alike.” -- Kirkus “This could be one of the most important books of the year. With so much riding on ‘certainty,’ and so little known about how people actually reach a state of certainty about anything, some plain speaking from a knowledgeable neuroscientist is called for. If Gladwell's Blink was fascinating but largely anecdotal, Burton's book drills down to the real science behind snap judgments and other decision-making.” -- Howard Rheingold, futurist and author of Smart Mobs “A fascinating read. Burton’s engaging prose takes us into the deepest corners of our subconscious, making us question our most solid contentions. Nobody who reads this book will walk away from it and say ‘I know this for sure’ ever again.” --Sylvia Pagán Westphal, science reporter, The Wall Street Journal “Burton provides a compelling and though-provoking case that we should be more skeptical about our beliefs. Along the way, he also provides a novel perspective on many lines of research that should be of interest to readers who are looking for a broad introduction to the cognitive sciences.” -- Seed Magazine. (shrink)
There is no uniquely standard concept of an effectively decidable set of real numbers or real n-tuples. Here we consider three notions: decidability up to measure zero [M.W. Parker, Undecidability in Rn: Riddled basins, the KAM tori, and the stability of the solar system, Phil. Sci. 70(2) (2003) 359–382], which we abbreviate d.m.z.; recursive approximability [or r.a.; K.-I. Ko, Complexity Theory of Real Functions, Birkhäuser, Boston, 1991]; and decidability ignoring boundaries [d.i.b.; W.C. Myrvold, The decision problem for entanglement, in: R.S. (...) Cohen et al. (Eds.), Potentiality, Entanglement, and Passion-at-a-Distance: Quantum Mechanical Studies fo Abner Shimony, Vol. 2, Kluwer Academic Publishers, Great Britain, 1997, pp. 177–190]. Unlike some others in the literature, these notions apply not only to certain nice sets, but to general sets in Rn and other appropriate spaces. We consider some motivations for these concepts and the logical relations between them. It has been argued that d.m.z. is especially appropriate for physical applications, and on Rn with the standard measure, it is strictly stronger than r.a. [M.W. Parker, Undecidability in Rn: Riddled basins, the KAM tori, and the stability of the solar system, Phil. Sci. 70(2) (2003) 359–382]. Here we show that this is the only implication that holds among our three decidabilities in that setting. Under arbitrary measures, even this implication fails. Yet for intervals of non-zero length, and more generally, convex sets of non-zero measure, the three concepts are equivalent. (shrink)
The underdetermination of theory by evidence is supposed to be a reason to rethink science. It is not. Many authors claim that underdetermination has momentous consequences for the status of scientific claims, but such claims are hidden in an umbra of obscurity and a penumbra of equivocation. So many various phenomena pass for `underdetermination' that it's tempting to think that it is no unified phenomenon at all, so I begin by providing a framework within which all these worries can be (...) seen as species of one genus: A claim of underdetermination involves (at least implicitly) a set of rival theories, a standard of responsible judgment, and a scope of circumstances in which responsible choice between the rivals is impossible. Within this framework, I show that one variety of underdetermination motivated modern scepticism and thus is a familiar problem at the heart of epistemology. I survey arguments that infer from underdetermination to some reëvaluation of science: top-down arguments infer a priori from the ubiquity of underdetermination to some conclusion about science; bottom-up arguments infer from specific instances of underdetermination, to the claim that underdetermination is widespread, and then to some conclusion about science. The top-down arguments either fail to deliver underdetermination of any great significance or (as with modern scepticism) deliver some well-worn epistemic concern. The bottom-up arguments must rely on cases. I consider several promising cases and find them to either be so specialized that they cannot underwrite conclusions about science in general or not be underdetermined at all. Neither top-down nor bottom-up arguments can motivate any deep reconsideration of science. (shrink)
Accounts of theistic faith according to which it does not involve referring to or believing in God as existing independently of the life of faith are instances of theistic reductionism. Theistic reductionism, in holding that ‘God’ does not refer to reality outside the life of believers, holds thereby that theism is not rightly to be regarded as true or false. Such accounts may be proposed or used as defenses of theistic faith. They ‘defend’ faith insofar as they describe the form (...) of life faith involves and show that the human and cultural functions it performs are valuable. Examining several reductionist accounts, ordered from weaker to stronger, I argue that they fail as defenses of theistic life and language. Whereas the reductionist views claim to leave the practice of theism as it is, I argue that in fact they imply a different form of life from the one theism actually is. Thus reductionist defenses of religious practice fail and fail precisely where they insist on treating God in some way other than as existing outside of religious life. From this I infer that theism as it exists can only be defended in ways that include taking ‘God’ as referring to a God who is real outside the life which recognizes him. The religious reductionists discussed include R.B. Braithwaite, P.F. Schmidt, Paul Holmer, Paul van Buren, Gordon Kaufman, and D.Z. Phillips. (shrink)
