Recent research has shown that a phase transformation of diamond to a different form of carbon is involved when diamonds are polished in the traditional fashion. The question as to how this phase transformation is activated and maintained to produce high wear rates is of great technological interest since it may radically change the way we view the processing of diamond. This paper describes the use of Raman spectroscopy to examine debris produced on the diamond polishing wheel, both during its (...) preparation and during polishing. In addition, polished diamond surfaces were examined for the possible existence of non-diamond surface layers in an attempt to identify material removal mechanisms. Raman spectroscopy proves ideal for these analyses because its relatively high spatial resolution is well suited to the analysis of small wear features and debris particles, and because of the wealth of information it reveals about chemical structure. This level of structural information has been lacking in previous analyses of diamond polishing debris. In addition to the non-diamond carbon found in the wear debris, significant quantities of two iron oxides, magnetite (Fe3O4) and haematite (α-Fe2O3), were also found. An interesting observation was that a transformation from magnetite to haematite could be induced either by using high power laser excitation or by frictional heating during polishing. It is suggested that some of the Raman peaks previously attributed to lonsdaleite might better be explained by the presence of these oxides. (shrink)

In Sex, Gender and Science , Myra Hird outlines the social study of science and nature, specifically in relation to sex, sex differences, and sexuality. She examines how Western understandings of sex are based less upon understanding material sex differences than on a discourse that emphasizes sex dichotomy over sex diversity and argues for a feminist engagement with scientific debate that embraces the diversity and complexity of nature.

Sociology of Science: A Critical Canadian Introduction provides an overview of how sociology approaches science and, to a lesser extent, technology. It examines how science developed as a set of theories about both what we know and how we know. The book provides a succinct critical examination of the current state of science studies with a particular emphasis on research conducted by Canadian scholars. Hird illustrates that science studies offers useful perspectives on current and ongoing sociological debates, such as (...) the strengths and limitations of social constructionism, as well as popular public debates, such as the ethics of stem-cell research. Using examples from throughout history and with a focus on the Canadian context, the book provides students with an examination of influential science studies concepts, theories, and debates and situates these theories and debates within contemporary field of sociology. (shrink)

Contemporary theories of consciousness are based on widely different concepts of its nature, most or all of which probably embody aspects of the truth about it. Starting with a concept of consciousness indicated by the phrase “the feeling of what happens” (the title of a book by Antonio Damásio), we attempt to build a framework capable of supporting and resolving divergent views. We picture consciousness in terms of Reality experiencing itself from the perspective of cognitive agents. Each conscious experience is (...) regarded as composed of momentary feeling events that are combined by recognition and evaluation into extended conscious episodes that bind cognitive contents with a wide range of apparent durations (0.1 secs to 2 or more secs, for us humans, depending on circumstances and context). Three necessary conditions for the existence of consciousness are identified: a) a ground of Reality, envisaged as an universal field of potentiality encompassing all possible manifestations, whether material or 'mental'; b) a transitional zone, leading to; c) a manifest world with its fundamental divisions into material, 'informational' and quale-endowed aspects. We explore ideas about the nature of these necessary conditions, how they may relate to one another and whether our suggestions have empirical implications. (shrink)

Our doxastic states are our belief-like states, and these include outright doxastic states and degreed doxastic states. The former include believing that p, having the opinion that p, thinking that p, being sure that p, being certain that p, and doubting that p. The latter include degrees of confidence, credences, and perhaps some phenomenal states. But we also have conviction (being convinced simpliciter that p) and degrees of conviction (being more or less convinced that p). This volume shows: how and (...) why all of the outright doxastic states mentioned above can be reduced to conviction thresholds; what degrees of conviction fundamentally are (degreed reliance-dispositions); why degrees of conviction are not credences; when suspending a belief is compatible with continuing to believe; and the surprising extent to which Kant endorsed the theory of conviction that emerges in this volume. (shrink)

This essay is a defense of the social construction of racialism. I follow a standard definition of “racialism” which is the belief that “there are heritable characteristics, possessed by members of our species, that allow us to divide them into a small set of races, in such a way that all the members of these races share certain traits and tendencies with each other that they do not share with other members of any other race”. In particular I want to (...) defend the “radical” social-constructive thesis that holds “the concept of race is exclusively the product of historical and cultural causes. It claims that humans do not tend to classify people into races when groups with different phenotypes meet, save for particular historical circumstances”. The quoted position is the consensus view among historians, sociologists, anthropologists, and other social scientists who study racialism but has recently been criticized by philosophical defenders of cognitive/evolutionary psychological approaches to racialism. Drawing on developmental studies as well as historical and contemporary cross-cultural research, CEP philosophers point to similarities of racialism across time and space. They hold that social constructionist approaches to racialism cannot explain these similarities. I hold that SC approaches do explain these similarities and that such similarities actually pose a significant challenge to the proposed CEP research program on racialism. (shrink)

Myra Hird and Harlan Weaver have been invited by the editors of this special issue to enter into discussion with each other – to conduct a series of interchanges – because of the careful attention their research has paid to the ways in which transness as a lived reality is ontologized in humans, non-human animals, bacteria, and viruses. With this issue’s interchanges, we would like to further the conversation on critically approaching the consequences of merging transness with animality. In (...) the following series of four essay questions, we particularly invited each of these scholars to consider moments of classificatory tension in which taxonomies of human and non-human become inflected and redirected by the categories of race, gender, sexuality, class, ability, and geopolitical location. (shrink)

Charles Griswold has written a comprehensive philosophical study of Smith's moral and political thought. Griswold sets Smith's work in the context of the Enlightenment and relates it to current discussions in moral and political philosophy. Smith's appropriation as well as criticism of ancient philosophy, and his carefully balanced defence of a liberal and humane moral and political outlook, are also explored. This 1999 book is a major philosophical and historical reassessment of a key figure in the Enlightenment that will be (...) of particular interest to philosophers and political and legal theorists, as well as historians of ideas, rhetoric, and political economy. (shrink)

I explain why, from the perspective of knowledge-centric anti-luck epistemology, objective act consequentialist theories of ethics imply skepticism about the moral status of our prospective actions and also tend to be self-defeating, undermining the justification of consequentialist theories themselves. For according to knowledge-centric anti-luck epistemology there are modal anti-luck demands on both knowledge and justification, and it turns out that our beliefs about the moral status of our prospective actions are almost never able to satisfy these demands if objective act (...) consequentialism is true. This kind of applied moral skepticism introduces problematic limits on our ability to use objective act consequentialism’s explanatory power as evidence for its truth. This is, in part, a product of higher-order defeat as I explain in the final section. There is, however, a silver lining for objective act consequentialists. For there is at least one type of objective act consequentialism, prior existence consequentialism, that is poised to avoid at least some of the epistemic problems discussed in this paper. (shrink)

Interpreting Figurative Meaning critically evaluates the recent empirical work from psycholinguistics and neuroscience examining the successes and difficulties associated with interpreting figurative language. There is now a huge, often contradictory literature on how people understand figures of speech. Gibbs and Colston argue that there may not be a single theory or model that adequately explains both the processes and products of figurative meaning experience. Experimental research may ultimately be unable to simply adjudicate between current models in psychology, linguistics and philosophy (...) of how figurative meaning is interpreted. Alternatively, the authors advance a broad theoretical framework, motivated by ideas from 'dynamical systems theory', that describes the multiple, interacting influences which shape people's experiences of figurative meaning in discourse. This book details past research and theory, offers a critical assessment of this work and sets the stage for a new vision of figurative experience in human life. (shrink)

In earlier work, the author has studied the economic role of planning horizons in making a case for complementarity as the predominant feature of social interdependence. This paper compares the different choice strategies implied by substitution, opposition and conflicts of interest in an economics of fear with those arising from horizon effects, economic complementarity and concerts of interest in an economics based on love. The contrasting implications of a psychological literature on negative vs. positive emotions and their health effects, along (...) with the findings in neurophysiological research about how humans are hard-wired for empathy and compassion leads to some fundamental changes in how we might address and revise social problems through economic analysis. The aim of this paper is to extend a horizonal case for complementarity in the author's previous work into its psychological links to research findings on healthy cognitive function and its emotional basis. An economics of substitution yields quite different conclusions about optimal institutional forms and how we address and frame social relations than are implied by an explicitly horizonal economics of complementary social relations. Recent psychological and neurophysiological studies support a horizonal case for complementarity in social relations, showing that our orthodox substitution assumptions and models of competitive equilibrium should be rejected for a renewed economic analysis based on horizonal models of complementarity and cooperation as a means to achieve greater social well-being in a healthier and more integrative form of social organization. The issues to be explored are not entertained within the currently existing frame of orthodox economics, so we must step beyond our standard habitual assumptions. (shrink)

Feminist analyses have made important contributions to the sociocultural experiences of pregnancy, birth and breastfeeding. This article draws upon recent theorizing within science studies to focus on the mattering of these processes. Specifically, the article expands upon Mauss's notion of the ‘gift’, which Diprose develops through the idea of ‘corporeal generosity’. I am interested in corporeal generosity insofar as it circumvents descriptions of relationships in terms of a closed economy in which resources are exchanged without excess or remainder. Corporeal generosity (...) refers to the often missed but nevertheless inescapable debt that a body owes to other bodies. At the same time, this embodied ‘gifting’ is both unpredictable and intrusive – there is as much possibility of threatening the integrity of bodies as there is of opening new possibilities. (shrink)

Ten years after the publication of the special issue of Social Epistemology on feminist epistemology, this paper explores recent feminist interest in the inhuman. Feminist science studies, cultural studies, philosophy and environmental studies all build on the important work feminist epistemology has done to bring to the fore questions of feminist empiricism, situated knowledges and knowing as an intersubjective activity. Current research in feminist theory is expanding this epistemological horizon to consider the possibility of an inhuman epistemology. This paper explores (...) these developments through the subject of waste. Waste, as both an epistemological and material phenomenon, invites timely questions about possibilities for acknowledging an inhuman epistemology. These questions appear to be particularly urgent from an environmental perspective. (shrink)

Canada is the world’s highest per capita municipal solid waste producer. By 2000, Canadians produced more annual waste per person than Americans; and by 2005, Canada produced nearly twice as much garbage as Japan (Conference Board of Canada 2008). By 2006, Canadians produced over 1000 kg of waste per person; 35 million tons of waste in a single calendar year (Statistics Canada 2008). The bulk of this waste ended up in landfills (ibid). In 2010, thirty percent of existing Canadian landfills (...) reached or surpassed capacity. Over one million tons of waste were exported out of Canada in 2002, much of it headed from southern Ontario to rural regions of Canada or to the United States (Statistics Canada 2005). Some cities .. (shrink)

Nigel Clark’s ‘ex-orbitant globality’ concerns the incalculability of other-than-human forces we typically fail to acknowledge, yet which haunt all considerations of environmental change. This article considers Gaia theory as a useful heuristic to register the ubiquity of bacteria to environmental activity and regulation. Bacteria are Gaia theory’s fundamental actants, and through symbiosis and symbiogenesis, connect life and matter in biophysical and biosocial entanglements. Emphasizing symbiosis might invoke the expectation of a re-inscription of the human insofar as the ubiquitous inter-connectivity of (...) life ultimately connects everything to the human. I want to argue toward the opposite conclusion: that bacterial liveliness suggests a profound indifference to human life. As such, symbiosis does not efface difference, nor its vigorous refusal to be absorbed within human formulations of world-remaking, including environmental change. Bacterial indifference’s radical asymmetry suggests the need for non-human centred theories of globality. (shrink)

We conducted a survey of residents of Kingston, Ontario, Canada, (n = 107) to understand their attitudes to and experiences of waste management and governance. Currently, the municipality is emphasising waste diversion and exploring new waste processing systems (WPS; e.g., incineration) to reduce costs. Using Foucault's governmentality theory, our data suggest Kingston's reliance on an attitude-behaviour-context model of behaviour change successfully fosters an environmental citizenship identity based on waste diversion (e.g., recycling). However, we argue that the neoliberal governmentality upon which (...) the attitude-behaviour-context model is predicated elides the need for, and inhibits consideration of, broader societal change concerning urgent environmental issues involving consumption and waste. (shrink)

Expressions of the form 'S is aware of the fact that p' are commonplace. This book provides a systematic exploration of the relation between knowledge and factual awareness, arguing that knowledge is but one species of factual awareness and that we can understand the possession of objective reasons, the normativity of knowledge, and the nature of knowledge in terms of factual awareness. In this way, the state of factual awareness is, structurally and substantively, a more basic type of state than (...) knowledge. If correct, this undermines a number of ways in which knowledge has been regarded as ‘first’ in recent epistemology. (shrink)

When a belief is self-fulfilling, having it guarantees its truth. When a belief is self-defeating, having it guarantees its falsity. These are the cases of “self-impacting” beliefs to be examined below. Scenarios of self-defeating beliefs can yield apparently dilemmatic situations in which we seem to lack sufficient reason to have any belief whatsoever. Scenarios of self-fulfilling beliefs can yield apparently dilemmatic situations in which we seem to lack reason to have any one belief over another. Both scenarios have been used (...) independently to challenge Evidentialism, on which what we may rationally believe is all and only what fits our current evidence. Here we tie the two scenarios together and explore what a knowledge-sensitive evidentialist approach to one implies for the other. (shrink)

Hird, G.R., Recursive properties of relations on models, Annals of Pure and Applied Logic 63 241–269. We prove general existence theorems for recursive models on which various relations have specified recursive properties. These capture common features of results in the literature for particular algebraic structures. For a useful class of models with new relations R, S, where S is r.e., we characterize those for which there is a recursive model isomorphic to on which the relation corresponding to S remains (...) r.e., while that corresponding to R is not r.e.; immune; hyperimmune. The results are applied to vector spaces, Boolean algebras and abelian groups. In the case of vector spaces, this leads to a new kind supermaximal subspace of V∞. (shrink)

Waste is a major global environmental issue that assembles socio-cultural and bio-geological processes in complex indeterminate relationships. Drawing on three case studies, this article explores the shifting environmental politics concerned with waste’s material, economic, political, and cultural ‘management’. The Canadian case studies – determining a new waste management technology in a mid-sized city in central Ontario, an open dump in a remote Nunavut community, and an abandoned gold mine in the Northwest Territories – suggest waste occasions particular material and political (...) mobilizations. Landfill leachate, colonialism, disinterested publics, freezing arsenic, global corporate investments, country food, land claims, neoliberal governance, permafrost, ravens, and a host of other socio-material forces both empower and thwart ‘management’ politics. Through these case studies, this article explores Isabelle Stengers’s assertion that participating citizenship is an ‘Empty Great Idea’, and a provocation to consider the contexts in which waste may generate acquiescent or objecting publics. (shrink)

The distinction between ‘sex’ and ‘gender’ is challenged by arguments that ‘sex’ is equally a social construction, initiating a selfreflexive effort to return feminism to its foundational grounding. This article concerns intersexuality and transsexualism as two bodily forms that further suggest ‘sex’ as socially inscribed. I argue that feminist theory needs to ascertain whether the artificial emphasis on sexual difference, contra nature, is better able to effect social change than conjoined efforts to expose ‘sex’ as a construction intended to ground (...) divisions. Recent support for ‘multiple genders’ often remain dependent on a morphological notion of ‘sex’, and, as such, may not constitute a radical challenge to our current ‘sex’/‘gender’ system. (shrink)

Conceptual metaphor theory (CMT) has become prominent in metaphor scholarship because of its explanation of the relations between people's metaphoric thoughts and their use of metaphoric discourse. Our aim in this article is to explore the temporal characteristics of how conceptual metaphors shape verbal metaphor use. We argue that cognitive linguistics and psycholinguistics mostly adopt simplistic, and psychologically implausible, views of how conceptual metaphors are activated and then constrain people's comprehension of metaphoric language. But more contemporary ideas on how cognitive (...) processing unfolds over time in human experience provide better models of how conceptual metaphors shape verbal metaphor use. The implications of this newer vision of CMT are discussed, particularly in regard to methods for studying how conceptual metaphors support interpretation of linguistic metaphor. (shrink)

[This is a paper that was originally written in 2017 and doesn't represent Silva's current thinking about degrees of confidence, conviction, and rationality.] Can there be knowledge and rational belief in the absence of a rational degree of confidence? Yes, and cases of "mistuned knowledge" demonstrate this. In this paper we leverage this normative possibility in support of advancing our understanding of the metaphysical relation between belief and credence. It is generally assumed that a Lockean metaphysics of belief that reduces (...) outright belief to degrees of confidence would immediately effect a unification of coarse-grained epistemology of belief with fine-grained epistemology of confidence. Scott Sturgeon has suggested that the unification is effected by understanding the relation between outright belief and confidence as an instance of the determinable-determinate relation. But determination of belief by confidence would not by itself yield the result that norms for confidence carry over to norms for outright belief unless belief and high confidence are token identical. We argue that this token-identity thesis is incompatible with the neglected phenomenon of “mistuned knowledge”—knowledge and rational belief in the absence of rational confidence. We contend that there are genuine cases of mistuned knowledge and that, therefore, epistemological unification must forego token identity of belief and high confidence. We show how partial epistemological unification can be secured given determination of outright belief by degrees of confidence even without token-identity. Finally, we suggest a direction for the pursuit of thoroughgoing epistemological unification. (shrink)

In prior papers the following question was considered: which classes of computable sets can be learned if queries about those sets can be asked by the learner? The answer depended on the query language chosen. In this paper we develop a framework for studying this question. Essentially, once we have a result for queries to [S,<]2, we can obtain the same result for many different languages. We obtain easier proofs of old results and several new results. An earlier result we (...) have an easier proof of: the set of computable sets cannot be learned with queries to the language [+,<] . A new result: the set of computable sets cannot be learned with queries to the language [+,<,POWa] where POWa is the predicate that tests if a number is a power of a. (shrink)

The study of metaphor is now firmly established as a central topic within cognitive science and the humanities. We marvel at the creative dexterity of gifted speakers and writers for their special talents in both thinking about certain ideas in new ways, and communicating these thoughts in vivid, poetic forms. Yet metaphors may not only be special communicative devices, but a fundamental part of everyday cognition in the form of 'conceptual metaphors'. An enormous body of empirical evidence from cognitive linguistics (...) and related disciplines has emerged detailing how conceptual metaphors underlie significant aspects of language, thought, cultural and expressive action. Despite its influence and popularity, there have been major criticisms of conceptual metaphor. This book offers an evaluation of the arguments and empirical evidence for and against conceptual metaphors, much of which scholars on both sides of the wars fail to properly acknowledge. (shrink)

Summary John Harrison (1693–1776) is regarded as the father of chronometry. During his lifetime, he relentlessly pursued one of humankind's greatest and oldest challenges—that of finding the longitude at sea. In succeeding (according to the rules dictated by an Act of Parliament), he bequeathed to humankind the most accurate portable timekeeper the world had ever seen. It is a remarkable fact that his timekeeper, known today as H4, remains more accurate than the majority of expensive mechanical wristwatches manufactured today. Such (...) accuracy required novel approaches to address the various difficulties that befall all mechanical watches, and Harrison overcame many of these with his own innovations. The reduction or elimination of friction is one such problem with clocks and watches, and from an early age Harrison demonstrated his mastery in this subject. This is typified by his choice of woods in his early clocks, and in later clocks by his ‘grasshopper’ escapement. In the 1750s, Harrison's attention switched from clocks to watches, necessitating a hardwearing, low friction material to be found for the pallets in the escapement of his timekeepers. He found these properties in diamond, and in utilizing this to great effect in H4's escapement, he became one of the first people to use diamond as a high-tech material. This paper describes a scientific investigation into the diamond pallets of H4 using Raman microscopy, X-ray diffraction and optical microscopy, to elucidate why diamond was used rather than a more conventional jewel such as ruby, and to gain some insight into how Harrison might have achieved their unconventional morphology. From the evidence presented here, together with evidence collected from primary sources, it is shown that his use of diamond as a hard, low friction material was nothing other than extraordinary, and should be regarded in the same high esteem as his other technological gifts to the world. (shrink)