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)

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)

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)

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)

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)

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.

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)

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)

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)

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)

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)

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)

[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)

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)

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)

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)

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)

Feminist philosophical analyses have recently returned to psychoanalytic theory's insights into the origins of gender. Freud's exegesis on social development holds gender to be a matter of identification, as opposed to an ontological condition of being. This article considers Judith Butler's use of psychoanalytic theory to argue that homosexuality both precedes and conditions the formation of heterosexual gender identification. While convinced the processes of identification do involve loss and are grieved in some way, I am less convinced that the precedence (...) of either heterosexuality or homosexuality can be logically sustained. I suggest that Butler's political commitment to subvert the hetero-normative gender system leads to a conflation of identification with desire, two distinct processes involving different psychic mechanisms. I want to argue that all gender is melancholic, as any restriction of pleasures entails loss; but the closer to the dominant heteronormative system the greater that failure. (shrink)

This paper concerns a theoretical struggle to situate childless women within contemporary feminist debates about gender, the body and sexuality. Although psychoanalytic theory offers a compelling approach to the body, a Freudian account of childless women has largely escaped investigation. This paper will provide such an analysis, arguing that competing interpretations of psychoanalytic theory reveal a salient tension in the interpretation of gender identification. On the one hand, some theorists focus on a social development model of gender identification. This model (...) emphasizes the sexual aim of reproduction as a salient feature of ‘normal’ gender identity development. In this paper, I argue this approach may pathologize childless women insofar as they ‘fail’ to socially develop in ways that conform to the imperative to sexually reproduce. On the other hand, a number of theorists argue against the foreclosure on gender identity that the social development model implies. An alternate interpretation of psychoanalytic theory calls attention to Freud's theory of ‘psychic bisexuality’ or ‘polymorphous perversity’. This notion invites a much more complex and ambivalent notion of gender identity as it emphasizes the temporal, fragile and incomplete process of gender identification. I aim to argue that this latter interpretation offers a space for childless women as it attempts to lay bare the hegemonic relationship between femininity and sexual reproduction. I draw upon the work of a number of feminist theorists who variously take up these central themes in Freudian psychoanalytic theory to further contest the reification of the association between femininity and maternity. (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)

We discuss our concerns associated with three assumptions upon which the model of Levelt, Roelofs & Meyer is based: assumed generalisability of decontextualised experimental programs, assumed highly modular architecture of the language production systems, and assumed symbolic computations within the language production system. We suggest that these assumptions are problematic and require further justification.

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)

My argument proceeds in two stages. In §I, I sum up the intuitions of a popular argument for 'satisfaction accounts' of Purgatory that I label, TAP. I then offer an argument, taken from a few standard orthodox Christian beliefs and one axiom of Christian theology, to so show that TAP is unsound. In the same section, I entertain some plausible responses to my argument that are prima facie consistent with these beliefs and axiom. I find these responses wanting. In §II, (...) I offer a sorites problem for TAP, given the orthodox Christian understanding of Christ’s parousia, showing that TAP and the intuitions driving it are faulty. To attempt something of a corrective, I end by offering some modest theological suggestions for thinking through “the logic of total transformation.”. (shrink)

This paper critiques the biological race realism of Quayshawn Spencer. Spencer's recent embrace of “radical race pluralism” (RRP) is welcome but incomplete, because it needs methods that distinguish different communicative contexts for how American English speakers use “race” and related terms. I offer a pragmatic approach to identifying such contexts that combines pragmatic argumentation theory, rhetorical polysemy, and a pragmatic approach to definition. One consequence of embracing RRP is that Spencer's theory of “OMB race talk” is unsupportable because it collapses (...) three distinct communicative contexts: genomic research, legal and regulatory governance, and ordinary talk. By so doing, OMB race talk blocks attempts to fight racism and violates ethical standards that should allow people the agency to define their own identities. (shrink)

The philosophical implication that guides the issue addressed here is the following: how does the principle of the common constitute a frontal apophasis to the principle of property in contemporary democracies? I do not pretend to offer an exhaustive answer to this problem. However, I use the argumentative strategy of dividing this paper into three sections: (i) theoretically investigate the dialectical tension between the principle of the common and the principle of property; (ii) analytically observe the premise that the behavioral (...) practices of exacerbated individualism contribute as an act of aversion to the principle of the common and (iii) dwell on the articulation of the notion of the principle of the common as a factor that is present on the threshold between the philosophical vulgar and philosophical universal. Finally, I form some considerations that problematize the naturalized notion of the principle of property in current democracies, in view of the constituent power that the principle of the common holds in the perspective of achieving the well-being of human agents in contemporary community life. (shrink)

Abstract:This paper develops a framework for examining decision making about ethical issues and tests the applicability of a social contract perspective. Using two separate samples of students and salespeople, we determine that community members (salespeople) tend to judge a potentially unethical act to constitute a violation of an implicit social contract and non-community members (students) do not. Also, consistent with the emphasis on context specificity of integrative social contracts theory, situational variables influence perceptions of ethicality for the community members, but (...) do not affect the perceptions of individuals outside the community. The study finds considerable support for the use of a social contractarian perspective in the study of decision-making processes about ethical issues. (shrink)

The basing demand on doxastic justification is a widely held and highly intuitive dogma of contemporary epistemology. In Silva [2015, AJP], I argued that the dialectical significance of this dogma is severely limited by our lack of independent grounds for endorsing it. Oliveira [2015, AJP] sought to defend the basing demand on doxastic justification. Here I explain why Oliveira’s attempted defense of the basing demand misses its mark. I also briefly suggest that there is an alternative way of defending the (...) basing demand. The alternative way is reconciliatory: it shows that most epistemologists may have been right to insist on such a demand, but perhaps still wrong to treat it as a dialectically powerful tool in the assessment of certain substantive epistemological theories. (shrink)