This book presents a detailed analysis of three ancient models of spatial magnitude, time, and local motion. The Aristotelian model is presented as an application of the ancient, geometrically orthodox conception of extension to the physical world. The other two models, which represent departures from mathematical orthodoxy, are a "quantum" model of spatial magnitude, and a Stoic model, according to which limit entities such as points, edges, and surfaces do not exist in (physical) reality. The book is unique in its (...) discussion of these ancient models within the context of later philosophical, scientific, and mathematical developments. (shrink)

Researchers typically define animal signaling as morphology or behavior specialized for transmitting encoded information from a signaler to a perceiver. Although intuitively appealing, this conception is inherently metaphorical and leaves concepts of both information and encoding undefined. To justify relying on the information construct, theorists often appeal to Shannon and Weaver’s quantitative definition. The two approaches are, however, fundamentally at odds. The predominant definition of animal signaling is thus untenable, which has a number of undesirable consequences for both theory and (...) practice in the field. Theoretical problems include conceptual circularity and running afoul of fundamental evolutionary principles. Problems in empirical work include that research is often grounded in abstractions such as signal honesty and semanticity, and thereby distracted from more basic and concrete factors shaping communication. A revised definition is therefore proposed, making influence rather than transmission of encoded information the central function of animal signaling. This definition is conceptually sound, empirically testable, and inclusive, yet bounded. Implications are considered in both theoretical and empirical domains. (shrink)

This paper shows how the availability heuristic can be used to justify inference to the best explanation in such a way that van Fraassen's infamous "best of a bad lot" objection can be adroitly avoided. With this end in mind, a dynamic and contextual version of the erotetic model of explanation sufficient to ground this response is presented and defended.

The right-wing populism ascendant today is a symptom of the failure of progressive politics. Central to this failure is the uncritical embrace of a neo-liberal version of globalization that benefits those at the top but leaves ordinary citizens feeling disempowered. Progressive parties are unlikely to win back public support unless they learn from the populist protest that has displaced them —not by replicating its xenophobia and strident nationalism, but by taking seriously the legitimate grievances with which these ugly sentiments are (...) entangled. These grievances are not only economic but also moral and cultural; they are not only about wages and jobs but also about social esteem. (shrink)

Van Fraassen’s (1989) infamous best of a bad lot objection is widely taken to be the most serious problem that afflicts theories of inference to the best explanation (IBE), for it alleges to show that we should not accept the conclusion of any case of such reasoning as it actually proceeds. Moreover, this is supposed to be the case irrespective of the details of the particular criteria used to select best explanations. The best of a bad lot objection is predicated (...) on, and really only requires, the idea that in any real case of IBE where one hypothesis is favored as best over those with which it competes, it is always the case that it is more likely that the true explanation is to be found in the set of unformulated and unconsidered logical alternatives to the set of actually considered hypotheses. On this basis, Van Fraassen believes that accepting the conclusion of IBEs so understood is irrational and this is simply because such inferences are supposedly not probative. In this paper the best of a bad lot objection will be addressed and it will be shown that Van Fraassen’s notorious criticism of IBE depends on a problematic conflation of two notions of rationality and thus that his criticism of IBE involves a damning equivocation. In essence, he conflates ideal standards of rationality with epistemic standards of rationality and, in so doing, makes it appear to be the case that we should not accept the conclusions of IBEs. But, when we disambiguate the concepts of rationality at work in the argument Van Fraassen’s conclusion simply does not follow. (shrink)

For nearly two centuries, developmental biologists have known that body organs are derived from distinct germ layers. They have argued that adult stem cells formed in one of these, mesoderm for example, cannot give rise to cells that originate in another. We disagree. An exception to this “rule” has been described in crayfish recently. In this species, hemocytes appear to replenish neurogenic cells. This may happen in humans as well. In women who were given male bone marrow‐derived cells, Y chromosome (...) positive cheek cells and brain neurons were detected. While repopulation of these tissues by bone marrow derived cells may not occur normally, and while it does not appear to be terribly efficient, the phenomenon should be studied in more detail. Perhaps cells in the marrow could be used to regenerate tissues elsewhere. (shrink)

How does our understanding of the reality (or lack thereof ) of race as a category of being affect our understanding of racism as a social phenomenon, and vice versa? How should we envision the aims and methods of our struggles against racism? Traditionally, the Western political and philosophical tradition held that true social justice points toward a raceless future--that racial categories are themselves inherently racist, and a sincere advocacy for social justice requires a commitment to the elimination or abolition (...) of race altogether. This book focuses on the underlying assumptions that inform this view of race and racism, arguing that it is ultimately bound up in a "politics of purity"--an understanding of human agency, and reality itself, as requiring all-or-nothing categories with clear and unambiguous boundaries. Racism, being organized around a conception of whiteness as the purest manifestation of the human, thus demands a constant policing of the boundaries among racial categories. Drawing upon a close engagement with historical treatments of the development of racial categories and identities, the book argues that races should be understood not as clear and distinct categories of being but rather as ambiguous and indeterminate (yet importantly real) processes of social negotiation. As one of its central examples, it lays out the case of the Irish in seventeenth-century Barbados, who occasionally united with black slaves to fight white supremacy--and did so as white people, not as nonwhites who later became white when they capitulated to white supremacy. Against the politics of purity, Monahan calls for the emergence of a "creolizing subjectivity" that would place such ambiguity at the center of our understanding of race. The Creolizing Subject takes seriously the way in which racial categories, in all of their variety and ambiguity, situate and condition our identity, while emphasizing our capacity, as agents, to engage in the ongoing contestation and negotiation of the meaning and significance of those very categories. (shrink)

We use formal semantic analysis based on new constructions to study abstract realizability, introduced by Läuchli in 1970, and expose its algebraic content. We claim realizability so conceived generates semantics-based intuitive confidence that the Heyting Calculus is an appropriate system of deduction for constructive reasoning.Well-known semantic formalisms have been defined by Kripke and Beth, but these have no formal concepts corresponding to constructions, and shed little intuitive light on the meanings of formulae. In particular, the completeness proofs for these semantics (...) do not generate confidence in the sufficiency of the Heyting Calculus, since we have no reason to believe that every intuitively constructive truth is valid in the formal semantics.Läuchli has proved completeness for a realizability semantics with formal concepts analogous to constructions. We argue in some detail that, in spite of a certain inherent inexactness of the analogy, every intuitively constructive truth is valid in Läuchli semantics, and therefore the Heyting Calculus is powerful enough to prove all constructive truths. Our argument is based on the postulate that a uniformly constructible object must be communicable in spite of imprecision in our language, and that the permutations in Läuchli's semantics represent conceivable imprecision in a language, while allowing a certain amount of freedom in choosing the particular structure of the language.We give a detailed generalization of Läuchli's proof of completeness for the propositional part of the Heyting Calculus, in order to make explicit constructive and algebraic content.In our treatment, we establish several new results about Läuchli models. We show how to extend the sconing and gluing constructions familiar from Kripke and Frame semantics and Topos theory, to Läuchli models, and use them to give an algebraic approach to countermodel construction. In particular, the Läuchli arguments are given without the restriction to the integers, Z, as a group of permutations, which makes much of the coding scheme used in Läuchli's original paper transparent.We also make use of a new propositions-as-types syntax for the Heyting calculus, with limited nondeterminism, in which validity of formulae can be decided without loop-detection. (shrink)

In this paper it is argued that three of the most prominent theories of conditional acceptance face very serious problems. David Lewis' concept of imaging, the Ramsey test and Jonathan Bennett's recent hybrid view all face viscious regresses, or they either employ unanalyzed components or depend upon an implausibly strong version of doxastic voluntarism.

This article argues that the dynamics behind the generation of social pathologies in modern society also undermine the social-relational framework for recognition. It therefore claims that the theory of recognition is impotent in face of the kinds of normative power exerted by social hierarchies. The article begins by discussing the particular forms of social pathology and their relation to hierarchical forms of social structure that are based on domination, control and subordination and then shows how the internalization of the norms (...) that shape and hold together hierarchical social formations causes pathologies within the self. As a result of these processes, the recognitive aspects of social action that the theory of recognition posits are unable to overcome and in fact reproduce and in many instances reinforce the pathologies themselves. (shrink)

This paper contains an argument to the effect that possible worlds semantics renders semantic knowledge impossible, no matter what ontological interpretation is given to possible worlds. The essential contention made is that possible worlds semantic knowledge is unsafe and this is shown by a parallel with the preface paradox.

Hans Reichenbach’s pragmatic treatment of the problem of induction in his later works on inductive inference was, and still is, of great interest. However, it has been dismissed as a pseudo-solution and it has been regarded as problematically obscure. This is, in large part, due to the difficulty in understanding exactly what Reichenbach’s solution is supposed to amount to, especially as it appears to offer no response to the inductive skeptic. For entirely different reasons, the significance of Bertrand Russell’s classic (...) attempt to solve Hume’s problem is also both obscure and controversial. Russell accepted that Hume’s reasoning about induction was basically correct, but he argued that given the centrality of induction in our cognitive endeavors something must be wrong with Hume’s basic assumptions. What Russell effectively identified as Hume’s (and Reichenbach’s) failure was the commitment to a purely extensional empiricism. So, Russell’s solution to the problem of induction was to concede extensional empiricism and to accept that induction is grounded by accepting both a robust essentialism and a form of rationalism that allowed for a priori knowledge of universals. So, neither of those doctrines is without its critics. On the one hand, Reichenbach’s solution faces the charges of obscurity and of offering no response to the inductive skeptic. On the other hand, Russell’s solution looks to be objectionably ad hoc absent some non-controversial and independent argument that the universals that are necessary to ground the uniformity of nature actually exist and are knowable. This particular charge is especially likely to arise from those inclined towards purely extensional forms of empiricism. In this paper the significance of Reichenbach’s solution to the problem of induction will be made clearer via the comparison of these two historically important views about the problem of induction. The modest but important contention that will be made here is that the comparison of Reichenbach’s and Russell’s solutions calls attention to the opposition between extensional and intensional metaphysical presuppositions in the context of attempts to solve the problem of induction. It will be show that, in effect, what Reichenbach does is to establish an important epistemic limitation of extensional empiricism. So, it will be argued here that there is nothing really obscure about Reichenbach’s thoughts on induction at all. He was simply working out the limits of extensional empiricism with respect to inductive inference in opposition to the sort of metaphysics favored by Russell and like-minded thinkers. (shrink)

Sister (Sr.) Marie Simone Roach, of the Sisters of St. Martha of Antigonish, Nova Scotia, died at the Motherhouse on 2 July 2016 at the age of 93, leaving behind a rich legacy of theoretical and practical work in the areas of care, caring and nursing ethics. She was a humble soul whose deep and scholarly thinking thrust her onto the global nursing stage where she will forever be tied to a central concept in nursing, caring, through her Six Cs (...) of Caring model. In Canada, she was the lead architect of the Canadian Nurses Association's first code of ethics, and her influence on revisions to it is still profound more than 35 years later. In this paper, four global scholars in nursing and ethics are invited to reflect on Sr. Simone's contribution to nursing and health‐care, and we link her work to nursing and health‐care going forward. (shrink)

Volume 20, Issue 2, February 2020, Page 55-57.

This paper critically explores Timothy Williamson’s view of evidence, and it does so in light of the problem of epistemic luck. Williamson’s view of evidence is, of course, a crucially important aspect of his novel and influential “knowledge-first” epistemological project. Notoriously, one crucial thesis of this project is that one’s evidence is equivalent to what one knows. This has come to be known as the E = K thesis. This paper specifically addresses Williamson’s knowledge-first epistemology and the E = K (...) thesis in the context of anti-luck epistemology and the idea that knowledge is factive. Williamson’s views on these matters are worth investigating in some detail because he subscribes to a well-worked out anti-luck view of knowledge that incorporates what is perhaps the most common anti-luck condition. But this paper is also of more general importance because the critique of Williamson’s views on these matters reveals some important things about the nature of evidence and evidence is one of the most fundamental concepts in epistemology. (shrink)

This short paper offers a skeptical solution to Åqvist's paradox of epistemic obligation. The solution is based on the contention that in SDL/KDT logics the externalist features of knowledge, about which we cannot have obligations, are obscured.

Argues that although the phenomenon of negative recency in secondary memory is usually attributed to the reduced amount of rehearsal associated with recency items, this phenomenon can be explained by the adoption of a different type of processing for recency items. An experiment with 122 undergraduates is reported in which the recall of recency items was reduced in an immediate test, but increased in a subsequent test, under conditions in which the recency items could not be identified as such during (...) their presentation. Results support the conclusion that the mode of processing items for an immediate free-recall test is normally modified for recency items. ((c) 1997 APA/PsycINFO, all rights reserved). (shrink)

A recent American Academy of Pediatrics (AAP) clinical report states that it is an acceptable option for pediatric care clinicians to dismiss families who refuse vaccines. This is a clear shift in guidance from the AAP, which previously advised clinicians to “endeavor not to discharge” patients solely because of parental vaccine refusal. While this new policy might be interpreted as encouraging or recommending dismissal of vaccine-refusing families, it instead expresses tolerance for diverse professional approaches. This is unlike the earlier guidance, (...) which promoted a unified response to vaccine refusal. In fact, the resolution (which was presented at the AAP’s Annual Leadership Forum) that led to this clinical report also calls on the AAP “to continue to support pediatricians who continue to provide health care to children of parents who refuse to immunize their children.” However, the shift toward embracing dismissal as an acceptable response to vaccine refusal may erode professional solidarity. Pediatricians are clearly divided on this question; most do not dismiss vaccine-refusing families. By declaring that dismissal is an acceptable option, the AAP has sanctioned a practice that may be unfair to the many clinicians who do not dismiss these families. Clinicians who adopt a policy of dismissal toward families who refuse vaccines might impose burdens on colleagues who remain willing to offer care to those families, and their actions might show insufficient commitment to the efforts of their profession to promote health for all children. (shrink)

Some recent work by philosophers of mathematics has been aimed at showing that our knowledge of the existence of at least some mathematical objects and/or sets can be epistemically grounded by appealing to perceptual experience. The sensory capacity that they refer to in doing so is the ability to perceive numbers, mathematical properties and/or sets. The chief defense of this view as it applies to the perception of sets is found in Penelope Maddy’s Realism in Mathematics, but a number of (...) other philosophers have made similar, if more simple, appeals of this sort. For example, Jaegwon Kim (1981, 1982), John Bigelow (1988, 1990), and John Bigelow and Robert Pargetter (1990) have all defended such views. The main critical issue that will be raised here concerns the coherence of the notions of set perception and mathematical perception, and whether appeals to such perceptual faculties can really provide any justification for or explanation of belief in the existence of sets, mathematical properties and/or numbers. (shrink)

The main examples of pragmatic encroachment presented by Jason Stanley involve the idea that knowledge ascription occurs more readily in cases where stakes are low rather than high. This is the stakes hypothesis. In this paper an example is presented showing that in some cases knowledge ascription is more readily appropriate where stakes are high rather than low.

Frantz Fanon’s Black Skin, White Masks opens with a discussion of language in the colonial setting. I argue that this is at least in part due to Fanon’s background in phenomenology, and the crucial role that intersubjectivity plays in the phenomenological account of the subject. I begin by demonstrating the phenomenological underpinnings of Fanon’s chapter on language. I then further develop the background phenomenological account of the subject, showing how this informs Fanon’s project. I then develop a sonic account of (...) the subject, arguing that metaphors of sound best represent the phenomenological account of the subject. Finally, I build on this sonic account to draw out the implications for our thinking about communication and liberation in Fanon’s work and beyond. (shrink)

The Earth agglomerates and heats. Convection cells within the planetary interior expedite the cooling process. Volcanoes evolve steam, carbon dioxide, sulfur dioxide and pyrophosphate. An acidulous Hadean ocean condenses from the carbon dioxide atmosphere. Dusts and stratospheric sulfurous smogs absorb a proportion of the Sun’s rays. The cooled ocean leaks into the stressed crust and also convects. High temperature acid springs, coupled to magmatic plumes and spreading centers, emit iron, manganese, zinc, cobalt and nickel ions to the ocean. Away from (...) the spreading centers cooler alkaline spring waters emanate from the ocean floor. These bear hydrogen, formate, ammonia, hydrosulfide and minor methane thiol. The thermal potential begins to be dissipated but the chemical potential is dammed. The exhaling alkaline solutions are frustrated in their further attempt to mix thoroughly with their oceanic source by the spontaneous precipitation of biomorphic barriers of colloidal iron compounds and other minerals. It is here we surmise that organic molecules are synthesized, filtered, concentrated and adsorbed, while acetate and methane—separate products of the precursor to the reductive acetyl-coenzyme-A pathway—are exhaled as waste. Reactions in mineral compartments produce acetate, amino acids, and the components of nucleosides. Short peptides, condensed from the simple amino acids, sequester ‘ready-made’ iron sulfide clusters to form protoferredoxins, and also bind phosphates. Nucleotides are assembled from amino acids, simple phosphates carbon dioxide and ribose phosphate upon nanocrystalline mineral surfaces. The side chains of particular amino acids register to fitting nucleotide triplet clefts. Keyed in, the amino acids are polymerized, through acid–base catalysis, to alpha chains. Peptides, the tenuous outer-most filaments of the nanocrysts, continually peel away from bound RNA. The polymers are concentrated at cooler regions of the mineral compartments through thermophoresis. RNA is reproduced through a convective polymerase chain reaction operating between 40 and 100°C. The coded peptides produce true ferredoxins, the ubiquitous proteins with the longest evolutionary pedigree. They take over the role of catalyst and electron transfer agent from the iron sulfides. Other iron–nickel sulfide clusters, sequestered now by cysteine residues as CO-dehydrogenase and acetyl-coenzyme-A synthase, promote further chemosynthesis and support the hatchery—the electrochemical reactor—from which they sprang. Reactions and interactions fall into step as further pathways are negotiated. This hydrothermal circuitry offers a continuous supply of material and chemical energy, as well as electricity and proticity at a potential appropriate for the onset of life in the dark, a rapidly emerging kinetic structure born to persist, evolve and generate entropy while the sun shines. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Reviewed by:The Secret History of Emotion: From Aristotle's ‘Rhetoric’ to Modern Brain ScienceMichael J. HydeThe Secret History of Emotion: From Aristotle's ‘Rhetoric’ to Modern Brain Science. Daniel M. Gross. Chicago: University of Chicago Press, 2006. Pp. x + 194. $35.00, Hardcover.The twofold goal of this book is clearly stated by its author: "to reconstitute by way of critical intellectual history a deeply nuanced, rhetorical understanding of emotion that prevailed (...) until the triumph of psychophysiology; second, to show by way of literary and philosophical example how this rhetorical perspective helps us read anew the emotional complex of modernity, whether early or late" (8). Gross' appreciation of the function of emotion emphasizes a phenomenological orientation that is inspired by Martin Heidegger's unpublished 1924 lecture course on Aristotle's Rhetoric. Gross recently co-edited with Ansgar Kemmann a book of original essays dedicated to a critical assessment of this lecture course (Gross and Kemmann 2006). In concluding her contribution to the book, the well-known Renaissance scholar Nancy S. Struever maintains that the course "remains, arguably, the best twentieth-century reading of Aristotle's Rhetoric" (Struever 2006: 127). Gross advances this reading with his creative and insightful assessment of his topic.This advance unfolds as Gross, abiding by phenomenology's well-known critique of the matter, takes issue with the reductive psychophysiology of emotion that Descartes first proposed and that informs latter-day sciences of the mind and the brain. Gross turns to the research program of the distinguished cognitive scientist Antonio Damasio as a way of arguing "how brain science of emotion goes awry when it blunders into social fact" (29). The reductionism of science, in other words, misses the forest for the trees. Admitting that Damasio is open to inquiries outside the boundaries of neurobiology, Gross nevertheless takes particular issue with Damasio's model for such a project: Edward O. Wilson's, Consilience: The Unity of Knowledge. Indeed, Wilson never gives rhetoric a nod when he acknowledges the worth of the humanities in his book.This slight, coming from Wilson, Damasio, and other scientists, fuels Gross's enthusiasm for turning to Aristotle's analysis of the pathe in book two of the Rhetoric. With Aristotle's discussion of "anger" in mind, for example, Gross emphasizes how we live in "a contoured world of emotional investments, where some people have significantly more liabilities than others" (3). [End Page 326]The point warrants elaboration: "The contours of our emotional world have been shaped by institutions such as slavery and poverty that simply afford some people greater emotional range than others, as they are shaped by publicity that has nothing to do with the inherent values of each human life and everything to do with technologies of social recognition and blindness" (4). Gross links this Aristotelian based social-psychological insight with such early modern philosophers, psychologists, and cultural critics as Thomas Hobbes, David Hume, William Perfect, and then with such contemporary intellectuals as Judith Butler. Gross' discussion of this linkage enables him to argue a key point in his overall project: the constitutive power of emotions depends not on how the social passions originate in a moral sense equally shared by all, but rather on the "uneven distribution" of these passions in our social and political lives.Gross makes much of how the rhetoric of this uneven distribution is at work in such particular cases as Aristotle's apathetic slave, Seneca's angry tyrant, Hobbes's resentful preacher, Sarah Fielding's humble hero, and Adam Smith's compassionate spectator. Gross's intellectual acumen shines as he weaves together these cases and expands on their implications for developing a rhetorical understanding of emotion. For example, in chapter three ("Virtues of Passivity in the English Civil War"), Gross offers a critical assessment of Michael Walzer's classic The Revolution of the Saints: A Study in the Origins of Radical Politics in order to show how the emotional makeup of passivity, too often "relegated to a diminished femininity" (87), not only informs the virtue of humility, but also helps it serve rhetorically "the most dramatic revolutionary ends" (110). Additional extended case studies emphasize the specific emotions of apathy, pride, pity... (shrink)

An explicitly frame related interpretation of a very general more for less result is used to establish a correspondingly general class of frame related switching results. These are used in turn to show how preference reversals of kinds found by Allais and others may not only be essentially non-paradoxical in character, but can be expected to be frequently observed, even under conditions of certainty and of complete information.

In analysing Lester Beall's posters for the U.S. government between 1937-1941, Michael Golec demonstrates the twofold character of facts in art and design appearing even when they are applied to guarantee distinct messages. Commissioned by the governmental agencies to develop a series of posters to increase the electrification of rural farms, Beall introduces pictograms in his first series to represent electrification as “facts of the future.” Its simple forms facilitate the travelling of this facts without loss of their integrity. (...) The same holds true for the use of photographic images for the second campaign of 1939. Following the revaluation of photography as a means for the documentation of social reality, as represented by the FSA photographers under the guidance of Roy Stryker, the medium served here as the authentication of facts. Golec holds, that Beall by reducing the complexity of the photographic images, to create a pictorial integrity of his posters, even despite of the use of a seemingly documentary medium, reinforces the ambivalent factual character of the pictures. So, paradoxically by heightening the communicative character of the design and hence stressing the idea of facts as integral realities outside of artworks, Beall's posters reveal the ambiguous character of pictorial facts creating their own specific qualities. Golec concludes, that facts in works of art and design have a twofold character resulting from their belonging to different spaces, which although meant to accomplish and address different facts, inevitably travel, overlap and bleed into each other. Thus oddly these facts refer or represent reality and simultaneously are a thing made (factum) that present and hold their own pictorial reality. (shrink)