If a classical system has infinitely many degrees of freedom, its Hamiltonian quantization need not be unique up to unitary equivalence. I sketch different approaches (Hilbert space and algebraic) to understanding the content of quantum theories in light of this non‐uniqueness, and suggest that neither approach suffices to support explanatory aspirations encountered in the thermodynamic limit of quantum statistical mechanics.

Proponents of children's liberation (CL) argue that there are no morally relevant differences between children and adults. Consequently, special protective laws that limit children's freedom are unjustified, and should be abolished. Protectionists reject the premise of this argument, and hence also the conclusion. Proponents of CL mostly fix upon the capacity for instrumental reasoning as the criterion that should separate autonomous from non-autonomous individuals. I argue that most children are substantially worse at instrumental reasoning than most adults, and although drawing (...) a line between the two categories has an arbitrary element, outstanding exceptions on both sides can be justly accommodated. Furthermore, the capacity for instrumental reasoning is a necessary but not sufficient basis for equal rights. A morally decent society is more demanding of individuals than the skeptical or libertarian one that most plausibly grounds CL. To construct and live in such a society requires both prudence and morality. But there is evidence that children need protection and limits to develop these traits. So there are morally relevant differences between children and adults after all, and the argument from justice fails. The utilitarian arm of the argument also fails: because of these morally relevant differences, CL would have worse consequences than those envisioned by its supporters. Parents would lose important authority, and there would be more homeless children. Consequently, the gap between advantaged and disadvantaged persons would become larger and more irreversible. (shrink)

A normal state on a von Neumann algebra defines a countably additive probability measure over its projection lattice. The von Neumann algebras familiar from ordinary QM are algebras of all the bounded operators on a Hilbert space H, aka Type I factor von Neumann algebras. Their normal states are density operator states, and can be pure or mixed. In QFT and the thermodynamic limit of QSM, von Neumann algebras of more exotic types abound. Type III von Neumann algebras, for instance, (...) have no pure normal states; the pure states they do have fail to be countably additive. I will catalog a number of temptations to accord physical significance to non-normal states, and then give some reasons to resist these temptations: pure though they may be, non-normal states on non-Type I factor von Neumann algebras can't do the interpretive work we've come to expect from pure states on Type I factors; our best accounts of state preparation don't work for the preparation of non-normal states; there is a sense in which non-normal states fail to instantiate the laws of quantum mechanics. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:The Journal of Speculative Philosophy 17.1 (2003) 73-75 [Access article in PDF] Retrieving Experience: Subjectivity and Recognition in Feminist Politics. Sonia Kruks. Ithaca and London: Cornell University Press, 2001. Pp. xii + 200. $35.00 h.c. 0-8014-3387-8; $16.95 pbk. 0-8014-8417-0. Sonia Kruks' latest book, Retrieving Experience, is a valuable contribution to ongoing debates about the relevance of feminist philosophy in a period of relative political quietism. It also offers timely (...) reminders of historical continuities between phenomenological and postmodern conceptions of subjectivity and political engagement. Drawing on Merleau-Ponty, Beauvoir, Fanon, and the later Sartre, Kruks proposes to "explore women's embodied experiences" and to "ask whether they might not offer some means to help build affective bonds among women who are in many ways radically different from one another" (6). The book approaches this task by means of two secondary issues. First, should feminist thought be oriented by phenomenological or postmodernist theoretical strategies? Second, can women's embodied experience be the conceptual basis for political and epistemological practices that avoid the pitfalls of "identity politics" or an "epistemology of provenance"? The answer to both questions comes through the notion of praxis developed in Sartre's Critique of Dialectical Reason. By thinking of embodiment as praxis or work, a strategy implicit in Beauvoir's idea that "one is not born, but rather becomes, a woman." Kruks seeks to resolve the ethical affront of finding one's individuality reduced to the "generality" of a collective—the ethical affront to which feminists of various generations and theoretical persuasions must respond.Retrieving Experience explores the significance of recognition as a political norm. Identifying Sartre's Anti-Semite and Jew as a pivotal work in the history of identitarian theorizing, she situates recent appeals for race- and gender-based political mobilization in the United States with respect to the dialectical relationship between the Look, shame, and recognition existentialists observed in situations of anti-Semitic and colonial domination during and immediately after the Second World War. Legitimating knowledge gained under oppressive conditions formed an important element of African, Southeast Asian, and ultimately African-American and feminist resistance to cultural imperialism. However, Kruks warns, discourses of "recognition" risk placing the blame for group domination on individuals' face-to-face interactions while concealing the role of state and economic institutions in enabling social disdain to systematically damage a group's quality of life. Moreover, they suggest that the experience of subjugation alone justifies knowledge claims or counts, without further elaboration, as an act of political engagement. Kruks argues that knowers and actors need to identify conceptual and practical mediations enabling individual interactions, experiences, and strategies to prompt the recognition and transformation of [End Page 73] group situations. Sartre's notion of praxis, she suggests, explains how an individual can participate in a collectivity while acting autonomously or acquiescing to subjection.The most important passages in Retrieving Experience examine the affective aspects of the decision to take up a political identity or engage in political action. Going beyond Sartre's account of mediations, Kruks suggests that the sensory and emotional qualities of embodiment are themselves mediators, the products of praxis as well as its vehicles. Since any act of social knowledge involves the emotions, affect plays an important role in the process whereby individuals from different cultural, economic, and bodily situations learn about and shape one another's' environment through the act of knowledge. Individuals, then, may have a moral responsibility to learn about others in a way that gives them "sympathetic bodies." Drawing on Maria Lugones' social epistemology, Kruks argues that "world-traveling" or existing simultaneously in several communities or sets of power relations is a bodily act, but also a fully cultural, ethical act rather than a natural way of being. One is not born, but becomes, an embodied knower. Understanding female embodiment as a kind of work or "world-traveling" praxis enables feminist solidarity—"respectful recognition" to replace a historically implausible "sisterhood" or a distinct epistemological perspective as a regulative ideal for feminist politics.But how far can the... (shrink)

An “intrinsically mixed” state is a mixed state of a system that is ‘orthogonal’ to every pure state of that system. Although the presence of such states in the quantum theories of infinite systems is well known to those who work with such theories, intrinsically mixed states are virtually unheralded in the philosophical literature. Rob Clifton was thoroughly familiar with intrinsically mixed states. I aim here to introduce them to a wider audience—and to encourage that audience to cultivate their acquaintance (...) by suggesting that intrinsically mixed states undermine assumptions framing standard discussions of the quantum measurement problem. (shrink)

: Some feminist epistemologists make the radical claim that there are varieties of epistemically valid warrant that agents access only through having lived particular types of contingent history, varieties of epistemic warrant to which, moreover, the confirmation-theoretic accounts of warrant favored by some traditional epistemologists are inapplicable. I offer Aristotelian virtue as a model for warrant of this sort, and use loosely Aristotelian vocabulary to express, and begin to evaluate, a range of feminist epistemological positions.

This is the first of a two-part introduction to some interpretive questions that arise in connection with quantum field theories (QFTs). Some of these questions are continuous with those familiar from the discussion of ordinary non-relativistic quantum mechanics (QM). For example, questions about locality can be rigorously posed and fruitfully pursued within the framework of QFT. A stark disanalogy between QFTs and ordinary QM – the former, but not the latter, typically admit infinitely many putatively physically inequivalent realizations – prompts (...) relatively novel questions, questions about how to understand and adjudicate different strategies for equipping quantum theories with content. Part I sketches the fate of locality and related notions in QFT, then documents the non-uniqueness unprecedented in ordinary QM but rampant in QFT. Part II presents foundations issues raised by non-uniqueness. (shrink)

Van Fraassen's 1991 modal interpretation of Quantum Mechanics offers accounts of measurement and state preparation. I argue that both accounts overlook a class of interactions I call General Unitary Measurements, or GUMs. Ironically, GUMs are significant for van Fraassen's account of measurement because they challenge it, and significant for his account of preparation because they simplify it. Van Fraassen's oversight prompts a question about modal interpretations: developed to account for ideal measurement outcomes, can they consistently account as well for the (...) whole horizon of laboratory practices by which we investigate QM? (shrink)

What is wonder? What would it mean to live our lives in wonder or with wonder? Is it possible for wonder to play an integral role in our aesthetic, ethical, and pedagogical experiences? Philosophy is said to begin with wonder. For Plato, wonder is the arche that grounds all philosophical inquiry. I propose to begin my ethical and aesthetic investigation of wonder with Plato, but, unlike Plato who places the imagination’s capacity to be astonished at the bottom of a hierarchy (...) that quests for knowledge and understanding, I will argue that an ethics and aesthetics based on wonder would allow for the imagination to play an active role in all our encounters. First, I look at different philosophical treatments of wonder and then consider the role wonder plays as a virtue. Next I examine the wondrous in relation to aesthetic and ethical experiences, exploring art exhibits and a play, and conclude by drawing upon the many sides of wonder and considering its role in education. In my wanderings on wonder, I seek to value wonder as an integral part of ourselves, in all our imaginings, understandings, growth, and knowledge acquisition. (shrink)

it is common in reid scholarship to use the notion of intentionality both to explicate his notion of conception and to explain his talk of acts such as perception having objects distinct from themselves. With regard to conception, Reid states that every act of conception “must have an object; for he that conceives, must conceive something.”1 Using the notion of intentionality, commentators interpret this to mean that, through conception, the mind is directed on an object, and that acts of conception (...) are always of an object or about something.2 Commentators further explicate the purported intentionality of conception in terms of it being an act of representing something or having representational content, where... (shrink)

Commentators have argued that along with adopting a mechanical view of nature, Descartes developed two innovative views concerning sensation: sensation occurs without the involvement of an entity resembling the sensation, and sensations represent features of objects but without resembling them. When Descartes is interpreted as making both of these claims, it appears that in removing resemblance from the causal process of sensation, Descartes preserves the notion that sensations represent features of objects and that he does this by introducing a new (...) conception of representation — one not requiring resemblance.It is important to recognize that the two claims are distinct. The first claim, that the physical process of sensation does not involve something resembling the qualitative content of the sensation, does not in and of itself entail anything about the representational nature of the sensation. Or rather, what it does entail is thatifsensations do represent their causes in objects, then it cannot be by presenting those causes to the mind as they exist in objects. (shrink)

Nancy Tuana holds that the nature/nurture dichotomy does not accurately represent the world and hence that a whole series of assumptions about human nature is mistaken. She rejects both biological determinism and alternative interactionist views. I argue that although her arguments and political concerns do rule out any kind of simple biological determinism, they do not show that the alternative interactionist view is untenable: in fact, she uses the distinction in her attempt to demolish it. I argue that the assumption (...) that "nature" implies fixity is the source of difficulties here, not the dichotomy itself. (shrink)

It has been suggested that the Modal Interpretation of Quantum Mechanics (QM) is "incomplete" if it lacks a dynamics for possessed values. I argue that this is only one of two possible attitudes one might adopt toward a Modal Interpretation without dynamics. According to the other attitude, such an interpretation is a complete interpretation of QM as standardly formulated, an interpretation whose innovation is to attempt to make sense of the quantum realm without the expedient of novel physics. Then I (...) explain why this attitude, though available, is unattractive. Without dynamics, the Modal Interpretation vanquishes the measurement problem only, it seems, to succumb to the problem of state preparation. On this view, the Modal Interpretation needs dynamics not to be an interpretation at all, but to be an adequate one. I review reasons to suspect that the dynamics which would best suit the Modal Interpretation--a dynamics equivalent to a set of two time transition probabilities of the sort used to solve the preparation problem--is not a dynamics the interpretation can have. I close with a brief discussion of versions of the Modal Interpretation that may not succumb to the considerations presented here. (shrink)

The consumption of halal food may be seen as an expression of the Muslim identity. Within Islam, different interpretations of ‘halal’ exist and the pluralistic Muslim community requests diverse halal standards. Therefore, adaptive governance arrangements are needed in the halal food market. Globalization and industrialization have complicated the governance of halal food. A complex network of halal governors has developed from the local to the global level. In this paper, we analyze to what extent halal certification bodies in the Netherlands (...) address the needs of the Muslim community and how they are influenced by international halal governance. The Netherlands serves as a case study with its growing Muslim community and its central position in international trade. The data comes from literature review and eleven qualitative semi-structured interviews with the most prominent actors in the Dutch halal governance system. Our analysis shows that the halal governance system in the Netherlands is weakly institutionalized and hardly adaptive to the needs of a heterogeneous Muslim community. Improvements are needed concerning stakeholder engagement, transparency, accessibility, impartiality and efficiency. (shrink)

The international organic agricultureand fair trade movements represent importantchallenges to the ecologically and sociallydestructive relations that characterize the globalagro-food system. Both movements critique conventionalagricultural production and consumption patterns andseek to create a more sustainable world agro-foodsystem. The international organic movement focuses onre-embedding crop and livestock production in ``naturalprocesses,'' encouraging trade in agriculturalcommodities produced under certified organicconditions and processed goods derived from thesecommodities. For its part, the fair trade movementfosters the re-embedding of international commodityproduction and distribution in ``equitable socialrelations,'' developing a (...) more stable and advantageoussystem of trade for agricultural and non-agriculturalgoods produced under favorable social andenvironmental conditions. The international market forboth organic and fair trade products has grownimpressively in recent years. Yet the success of thesemovements is perhaps better judged by their ability tochallenge the abstract capitalist relations that fuelexploitation in the global agro-food system. While theorganic movement currently goes further in revealingthe ecological conditions of production and the fairtrade movement goes further in revealing the socialconditions of production, there are signs that the twomovements are forging a common ground in definingminimum social and environmental requirements. I arguefrom a theoretical and empirical basis that what makesfair trade a more effective oppositional movement isits focus on the relations of agro-food trade anddistribution. By demystifying global relations ofexchange and challenging market competitiveness basedsolely on price, the fair trade movement creates aprogressive opening for bridging the wideningNorth/South divide and for wresting control of theagro-food system away from oligopolistic transnationalcorporations infamous for their socially andenvironmentally destructive business practices. (shrink)

Human research is accepted in our society because it is seen as generating valuable new knowledge that may alleviate suffering and bring benefit to ill persons now and in the future (Brody 1998; Fa...

This chapter contains sections titled: General Assessments of Assisted Reproduction Pre‐birth Testing Conclusion References Further reading.

The Hippo pathway, a cascade of protein kinases that inhibits the oncogenic transcriptional coactivators YAP and TAZ, was discovered in Drosophila as a major determinant of organ size in development. Known modes of regulation involve surface proteins that mediate cell‐cell contact or determine epithelial cell polarity which, in a tissue‐specific manner, use intracellular complexes containing FERM domain and actin‐binding proteins to modulate the kinase activities or directly sequester YAP. Unexpectedly, recent work demonstrates that GPCRs, especially those signaling through Galpha12/13 such (...) as the protease activated receptor PAR1, cause potent YAP dephosphorylation and activation. This response requires active RhoA GTPase and increased assembly of filamentous (F‐)actin. Morever, cell architectures that promote F‐actin assembly per se also activate YAP by kinase‐dependent and independent mechanisms. These findings unveil the ability of GPCRs to activate the YAP oncogene through a newly recognized signaling function of the actin cytoskeleton, likely to be especially important for normal and cancerous stem cells. (shrink)

This article demonstrates how the broader social development to understand behaviour and personhood as shaped by neurobiology forms a predominant narrative among police officers. Drawing on an ethnography of the Dutch police force and 73 interviews with officers, I examine first how they use neurobiological terms to describe and account for their embodied sensations as well as civilian behaviour. Second, I describe the functions these narratives have, that is, why officers use them. Finally, I show how neurobiological discourses are learned (...) and (re)produced during training. Results indicate that officers invoke neurobiology both as facilitator of and explanation for action. The latter raises questions as to what extent neurobiological discourse obscures police responsibility and accountability. A more thorough understanding of how neurobiological discourses are used to understand and account for actions is relevant, given the growing pressures on public professionals to legitimise their work. (shrink)

Two issues should be addressed to refine and extend the distinction between temporal updating and reasoning advocated by Hoerl & McCormack. First, do the mental representations constructed during updating differ from those used for reasoning? Second, are updating and reasoning the only two processes relevant to temporal thinking? If not, is a dual-systems framework sensible? We address both issues below.

How can citizens construct the political authority under which they will live? I argue that Thomas Hobbes’s Leviathan (1651) answers this question concerning the constitutive power of political and normative agency by employing four dimensions of mimesis from the Greek and Roman traditions. And I argue that mimesis accounts for the know-how, or power/knowledge, the general ‘man’ draws upon in constructing the commonwealth. Hobbes revalues poetic mimesis through his stylistic decisions, including the invitation to the reader to read ‘himself’ in (...) the portrait of the general man depicted in the text. Hobbes aims for Leviathan to change the ethical dispositions of its readers, turning them from bad to good men as they witness the general man undergoing this ethical transformation in the transition from the state of nature to the civil state. He emphasizes the anthropological dimension of mimesis to explain political disorder since he argues that men assess the honor others attribute them by observing signs and gestures in others’ behavior. Hobbes employs the linguistic dimension of mimesis to describe how men acting as agents can build a normative consensus out of the state of nature. This article positions mimesis as a key term for understanding the intersection between aesthetics and politics before the term ‘aesthetics’ came into parlance. (shrink)

The past thirty years have seen substantive debate on the nature of Robert Boyle’s self-described “Mechanical” or “Corpuscularian” philosophy, its treatment of kinds and qualities, its relation to his experimental studies, its relation to other sixteenth- and seventeenth-century matter theories, and its role in the development of chemistry. Using several different strands from this literature, Marina Banchetti-Robino aims to show how Boyle addresses issues relevant to philosophy of chemistry today: the emergent nature of chemical properties, the mereology of fundamental chemical (...) wholes, and the nonreducibility of chemistry to physics. The last issue frames the whole book, which she describes... (shrink)

A single mother doing her best to raise her children. A small business owner realizing her dreams in a rural Kansas town. A caregiver for a disabled child. All these Kansans deserve the ability to...