Combating the identity problem is crucial and urgent as false identity has become a common denominator of many serious crimes, including mafia trafficking and terrorism. Without correct identification, it is very difficult for law enforcement authority to intervene, or even trace terrorists’ activities. Amongst several identity attributes, personal names are commonly, and effortlessly, falsified or aliased by most criminals. Typical approaches to detecting the use of false identity rely on the similarity measure of textual and other content-based characteristics, which are (...) usually not applicable in the case of highly deceptive, erroneous and unknown descriptions. This barrier can be overcome through analysis of link information displayed by the individual in communication behaviours, financial interactions and social networks. In particular, this paper presents a novel link-based approach that improves existing techniques by integrating multiple link properties in the process of similarity evaluation. It is utilised in a hybrid model that proficiently combines both text-based and link-based measures of examined names to refine the justification of their similarity. This approach is experimentally evaluated against other link-based and text-based techniques, over a terrorist-related dataset, with further generalization to a similar problem occurring in publication databases. The empirical study demonstrates the great potential of this work towards developing an effective identity verification system. (shrink)

Non-presentist A-theories of time (such as the growing block theory and the moving spotlight theory) seem unacceptable because they invite skepticism about whether one exists in the present. To avoid this absurd implication, Peter Forrest appeals to the "Past is Dead hypothesis," according to which only beings in the objective present are conscious. We know we're present because we know we're conscious, and only present beings can be conscious. I argue that the dead past hypothesis undercuts the main reason for (...) preferring non-presentist A-theories to their presentist rivals, rivals which straightforwardly avoid skepticism about the present. (shrink)

Price replies to Sciabarra's criticism that Carol Selby Price and Robert Price's Mystic Rhythms erroneously classifies Rush lyricist Neil Peart as "conservative." "Conservative" may imply limitation of individual freedom by the government—or by organized religion. Peart leans more toward a non-religious libertarianism and Rand's Objectivism, which may be considered "conservative" in the same narrow sense. Ironically, Randian thinkers share with religion the use of the Hero Myth archetype. Price focuses on recent Rand-type comic book superheroes, including (...) Steve Ditko's Mister A and The Question, and Alan Moore's parody on diese, Rorschach. (shrink)

"Guanxi" involves interpersonal obligations, which may conflict with other obligations people have that are based on general or abstract moral considerations. In the West, the latter have been widely accepted as the general source of obligations, which is perhaps tied to social changes associated with the rise of capitalism. Recently, Western ethicists have started to reconsider the extent to which personal relationships may form a distinct basis for obligation. In administration and management, salient bases for decision-Making include deontological, consequentialist and (...) personalist ethics. The first may be reflected in a bureaucratic approach, the second in a price system, and the third in arrangements like "guanxi". Each has positive and negative aspects, but problems arise when they lead to conflicting obligations, as may occur for an office holder who has some obligations based in deontological considerations and others based in personal relationships. This is a type of conflict of interest. Such conflicts have been considered in the West, and remedies proposed. Problems arise especially in cases where it is not clear how to prioritise different obligations, and this has been noted as a difficulty in the Chinese legal system. Questions that need to be answered include not only questions about how to deal with conflicting obligations, but also questions about what institutions to accept as giving rise to obligations. Institutions themselves may be problematic not only because of their consequences for economic productivity, but because they are internally incoherent, and this may be manifested in frequent conflicts faced by office holders. (shrink)

"Guanxi" involves interpersonal obligations, which may conflict with other obligations people have that are based on general or abstract moral considerations. In the West, the latter have been widely accepted as the general source of obligations, which is perhaps tied to social changes associated with the rise of capitalism. Recently, Western ethicists have started to reconsider the extent to which personal relationships may form a distinct basis for obligation. In administration and management, salient bases for decision-Making include deontological, consequentialist and (...) personalist ethics. The first may be reflected in a bureaucratic approach, the second in a price system, and the third in arrangements like "guanxi". Each has positive and negative aspects, but problems arise when they lead to conflicting obligations, as may occur for an office holder who has some obligations based in deontological considerations and others based in personal relationships. This is a type of conflict of interest. Such conflicts have been considered in the West, and remedies proposed. Problems arise especially in cases where it is not clear how to prioritise different obligations, and this has been noted as a difficulty in the Chinese legal system. Questions that need to be answered include not only questions about how to deal with conflicting obligations, but also questions about what institutions to accept as giving rise to obligations. Institutions themselves may be problematic not only because of their consequences for economic productivity, but because they are internally incoherent, and this may be manifested in frequent conflicts faced by office holders. (shrink)

Each day, a countless number of items is sold through online auction sites such as eBay and Ricardo. Though abuse is being reported more and more, transactions seem to be relatively hassle free. A possible explanation for this phenomenon is that the sites’ reputation mechanisms prevent opportunistic behavior. To analyze this issue, we first summarize and extend the mechanisms that affect the probability of sale of an item and its price. We then try to replicate the results as found (...) in four recent papers on online auctions. Our analyses reveal that (1) it makes sense to differentiate between ‘power sellers’ and the less regular users, (2) there are variables that have an effect on sales that are often not controlled for, (3) one should carefully consider how reputation is operationalized, ( 4) neglecting heteroscedastidty in the data can have serious consequences, and (5) there is some support indicating that effects differ across auction sites. (shrink)

Dozens of countries have established Sovereign Wealth Funds (SWFs) in the last decade or so, in the majority of cases employing those funds to manage the large revenues gained from selling resources such as oil and gas on a tide of rapidly rising commodity prices. These funds have raised a series of ethical questions, including just how the money contained in such funds should eventually be spent. This article engages with that question, and specifically seeks to connect debates on SWFs (...) with debates onglobaljustice. Just how good are national claims to the great wealth contained in SWFs in the first place? Using the example of Norway's very large SWF – derived from selling North-Sea petroleum – I show that national claims are at least sometimes very weak, with the implication that the wealth in many such funds is ripe for redistribution in the interests of global justice. I conclude by offering some guidance for how the money contained in such funds could best be spent, with the goal of advancing global justice. (shrink)

This book outlines and analyzes the economic development of China between 1949 and 2007. Rather than being narrowly economic, the book addresses many of the broader aspects of development, including literacy, morality, demographics and the environment. The distinctive features of this book are its sweep and that it does not shy away from controversial issues. For example, there is no question that aspects of Maoism were disastrous but Bramall argues that there was another side to the whole programme. More recently, (...) the current system of government has presided over three decades of very rapid economic growth. However, the author shows that this growth has come at a price. Bramall makes it clear that unless radical change takes place, Chinese growth will not be sustainable. This large, comprehensive text is relevant to all those studying the economic history of China as well as its contemporary economy. It is also useful more generally for students and researchers in the fields of international and development economics. (shrink)

Firms are increasingly personalising their offers and services, leading to an ever finer-grained segmentation of consumers online. Targeted online advertising and online price discrimination are salient examples of this development. While personalisation's overall effects on consumer welfare are expectably ambiguous, it can lead to concentration in the distribution of advertising and commercial offers. Constellations are possible in which a market is generally open to competition, but the targeted consumer is only made aware of one possible seller. For the consumer, (...) such a market could effectively resemble a monopoly. We call such extreme cases ‘targeting pockets’. Competition-law metrics such as the Herfindahl–Hirschman Index and traditional means of public oversight of adverts would not detect this concentration. We, therefore, suggest a novel metric, the Concentration-after-Personalisation Index (CAPI). The CAPI treats every consumer as a separate ‘market’, computes a measure of concentration for personalised adverts and offers for each individual consumer separately, and then averages the result to measure the exposure experienced by an average consumer. We demonstrate how the CAPI can serve as a monitoring tool for regulators and auditors and thus help to enforce existing consumer law as well as proposed new regulations such as the European Union's Digital Services Act and its Artificial Intelligence Act. We further show how adding noise via randomly distributed non-personalised adverts can dilute the potential harm of overly concentrated personalisation. We demonstrate how the CAPI can identify the optimal degree of added noise, balancing the protection of consumer choice with the economic interests of advertisers. (shrink)

This special edition ofJLMEcenters on a novel proposal for a national PrEP access program with the potential to break through a failed status quo.

A participatory rural appraisal inthree West African countries examined thepossibility for replacing chemical pesticidesto control locusts and grasshoppers with abiological control method based on anindigenous fungal pathogen. The fungus iscurrently being tested at different sites inthe Sahel and in the humid tropics of WestAfrica. Structured group interviews, individualdiscussions, and field visits, were used toobtain farmers' perceptions of locust andgrasshoppers as crop pests, their quantitativeestimation of crop losses, and theirwillingness to pay for locust control. Farmersas well as plant protection officers generallyperceived (...) locusts and grasshoppers as importantpests that cause significant damage. Farmerswere aware of some of the risks of the use ofchemical pesticides, but not of the potentialalternatives. The use of the fungus in anoil-formulation and standard Ultra Low Volume(ULV) equipment was demonstrated, and theresults discussed with farmers. Theirimpressions of biological control werefavorable, and they expressed an interest inusing the technology. Farmers' expressedwillingness to pay for locust control is small,but not negligible. Locusts and grasshoppersare very visible pests and thus amenable topressure from farmers to local administrators,as well as by farmers' relatives in the city onthe national government. Therefore, politicalpressure for locust control is strong, althoughnational governments spend little on it,depending mostly on foreign donors. Donors areincreasingly worried about the environmentaleffect of the large amounts of chemicalpesticides used on locust control, and arepushing for more benign alternatives. Theresults of the present survey indicate thatthere may be a potential market for abiopesticide against grasshoppers and locustson cash crops in the humid areas. The potentialmarket in the Sahel depends on a reduction ofcosts or a subsidy of its price. This subsidycould be justified by the expected reduction inenvironmental and health costs when replacingchemical pesticides. Since donors are thecurrent purchasers of chemical pesticides forthe Sahel, they would also be expected to beinvolved in the purchase of the biologicalproduct. (shrink)

The study is designed to provide an informal summary of what is known about consumer switching of health insurance plans and to contribute to knowledge about what motivates consumers who choose to switch health plans. Do consumers switch plans largely on the basis of critical reflection and assessment of information about the quality, and price? The literature suggests that switching is complicated, not always possible, and often overwhelming to consumers. Price does not always determine choice. Quality is very (...) hard for consumers to understand. Results from a random sample survey ( n = 2791) of the Alkmaar region of the Netherlands are reported here. They suggest that rather than embracing the opportunity to be active critical consumers, individuals are more likely to avoid this role by handing this activity off to a group purchasing organization. There is little evidence that consumers switch plans on the basis of critical reflection and assessment of information about quality and price. The new data reported here confirm the importance of a group purchasing organizations. In a free-market-health insurance system confidence in purchasing groups may be more important for health insurance choice than health informatics. This is not what policy makers expected and might result a less efficient health insurance market system. (shrink)

Philosophers often treat racist and sexist slurs as a special sort of puzzle. What is the difference between a slur and its correlates? In attempting to answer this question, a second distinction has been overlooked: that between slurs and insults. What makes a term count as a slur? This is not an unnecessary taxonomical question as long as ableist terms such as ‘moron’ are dismissed as mere insults. Attempts to resolve the insult/slur distinction by considering the communicative content of slurs (...) are not promising. A better solution is offered by speech act theory, and this paper develops a novel way to describe ordinary slurring utterances as oppressive speech acts. This can both explain the difference between slurs and insults, and challenge the dismissal of ableist terms. (shrink)

Objective—To identify and describe the current state of clinical ethics support services in the UK.Design—A series of questionnaire surveys of key individuals in National Health Service (NHS) trusts, health authorities, health boards, local research ethics committees and health professional organisations. Interviews with chairmen/women of clinical ethics committees identified in the surveys.Setting—The UK National Health Service.Results—Responses to the questionnaires were received from all but one NHS trust and all but one health authority/board. A variety of models of clinical ethics support were (...) identified including twenty formal clinical ethics committees (CECs). A further twenty NHS trusts expressed an intention to establish a CEC within the next twelve months. Most CECs in the UK have been in existence less than five years and are still defining their role. The chairmen identified education of committee members and contact with other ethics committees as important requirements for committee development. Problems were identified around lack of support for the committee and with raising the profile of the committee within the institution. There has been little evaluation of clinical ethics support services either in the UK or in other countries with longer established services. What evaluation has occurred has focused on process rather than outcome measures.Conclusions—Clinical ethics support services are developing in the UK. A number of issues have been identified that need to be addressed if such support services are to develop effectively. (shrink)

An important and widely-endorsed argument for moral realism is based on alleged parallels between that doctrine and epistemic realism -- roughly the view that there are genuine epistemic facts, facts such as that it is reasonable to believe that astrology is false. I argue for an important disanalogy between moral and epistemic facts. Epistemic facts, but not moral facts, are plausibly identifiable with mere descriptive facts about the world. This is because, whereas the much-discussed moral open-question argument is compelling, the (...) little-discussed epistemic open-question argument is not. This paper is a critical notice of Terence Cuneo's The Normative Web: An Argument for Moral Realism (Oxford University Press, 2007). (shrink)

Observers who note the increasing popularity of bioethics discussions often complain that the social sciences are poorly represented in discussions about things like abortion and stem-cell research. Critics say that bioethicists should be incorporating the methods and findings of social scientists, and should move towards making the discipline more empirically oriented. This way, critics argue, bioethics will remain relevant, and truly reflect the needs of actual people. Such recommendations ignore the diversity of viewpoints in bioethics, however. Bioethics can gain much (...) from the methods and findings from ethnographies and similar research. But it is misleading to suggest that bioethicists are unaware of this potential benefit. Not only that, bioethicists are justified in having doubts about the utility of the social science approach in some cases. This is not because there is some inherent superiority in non-empirical approaches to moral argument. Rather, the doubts concern the nature of the facts that the sciences would provide. Perhaps the larger point is that disagreements about the relationship between facts and normative arguments should be seen as part of the normal inquiry in bioethics, not evidence that reform is needed. (shrink)

Catcalls have been said to insult, intimidate, and silence their targets. The harms that catcalls inflict on individuals are reason enough to condemn them. This paper argues that they also inflict a type of structural harm by subordinating their targets. Catcalling initiates an unwanted conversation where none should exist. This brings the rules and norms governing conversations to bear in such a way that the catcall assigns their target a ‘subordinate discourse role’. This not only constrains the behaviour of the (...) target here and now, but also influences the norms governing future conversations. Catcalls are then not only bad because of the effects on their target, but also because of their pernicious contribution to the wider normative landscape. (shrink)

Metaethical non-naturalists maintain that normative or evaluative properties cannot be reduced to, or otherwise explained in terms of, natural properties. They thus have difficulty explaining what these irreducibly normative properties are supposed to be, other than by saying what they are not. I offer a partial, positive characterization of irreducible normativity in naturalistic terms. At a first pass, it is this: that to attribute a normative property to something is necessarily to commend or condemn that thing, due to the nature (...) of the property attributed. This theory characterizes normativity in terms of the natural phenomenon of performing certain familiar speech acts. The hypothesis does other explanatory work as well: it provides for an account of the "queerness" of normative properties, one superior to other accounts; it explains why metaethical reductionism is bound to fail, in a way friendly to non-naturalism (as opposed to non-cognitivism); and it can help deflect arguments against non-naturalism from the "essential practicality" of normativity. (shrink)

Public arguments can be good or bad not only as a matter of logic, but also in the sense that speakers can do good or bad things with arguments. For example, hate speakers use public arguments to contribute to the subordination of their targets. But how can ordinary speakers acquire the authority to perform subordinating speech acts? This is the ‘Authority Problem’. This paper defends a solution inspired by McGowan’s (Australas J Philos 87:389–407, 2009) analysis of oppressive speech, including against (...) concerns raised by McGowan (Just words: On speech and hidden harm, Oxford University Press, Oxford, 2019) herself. A deflated kind of authority can be gained from the hate speaker’s standing in a norm-governed ‘activity of oppression’. We should be wary about engaging with such speakers in public argument. Even if we counter their arguments, we may still elevate their standing within that activity and so enable them to perform more pernicious speech acts than was previously possible. (shrink)

Many of the existing ethical analyses of genetic engineering technologies (GET) focus on how they can be used to enhance individuals—to improve individual well-being, health and cognition. There is a gap in the current literature about the specific ways enhancement technologies could be used to improve our populations and species, viewed as a whole. In this paper, I explore how GET may be used to enhance the species through improvements in the gene pool. I argue one aspect of the species (...) that may be desirable to enhance is ‘persistence’ or long-term viability. I then look at some of the ways in which GET could be used to improve human persistence and argue that the use of GET to secure benefits for individuals may compromise persistence. This suggests conflicts between uses of GET to enhance individuals and uses to promote the persistence of the species may occur. As GET are further developed, the likelihood that these conflicts will actually arise, and how we should resolve them if they do, will need to be considered. (shrink)

In social work there is seldom an uncontroversial `right way' of doing things. So how will you deal with the value questions and ethical dilemmas that you will be faced with as a professional social worker? This lively and readable introductory text is designed to equip students with a sound understanding of the principles of values and ethics which no social worker should be without. Bridging the gap between theory and practice, this book successfully explores the complexities of ethical issues, (...) while recognising the real-world context in which social workers operate. Key features of the text include: - Full of hands-on advice and tips for professional practice. - Engaging and student-friendly. Each chapter is packed with case studies, reader exercises, key definitions and useful summaries. - Comprehensive content. The book explores core issues such as moral philosophy; professionalism; religion; power; oppression; difference and diversity; and ethical codes of practice. - Satisfies all the curriculum and training requirements for the new social work degree. Mapping directly on to first year courses, this text is essential reading for all social work undergraduates. It is an ideal refresher text for upper-level undergraduates, postgraduate and post-qualifying students, and for professionals. `This introductory text succeeds in providing an accessible introduction to the subject area. The book is consistently structured, well planned and uniformly written in a conversational and immediate style…. The discussion manages to combine a sense of engagement with a balanced treatment of the issues. Readers who apply themselves will be well sensitised to the matters under discussion and should be able to take their understanding into the practical arena' - Chris Clark, University of Edinburgh. (shrink)

Nanotechnologies are enabling technologies which rely on the manipulation of matter on the scale of billionths of a metre. It has been argued that scientific uncertainties surrounding nanotechnologies and the inability of regulatory agencies to keep up with industry developments mean that voluntary regulation will play a part in the development of nanotechnologies. The development of technological applications based on nanoscale science is now increasingly seen as a potential test case for new models of regulation based on future-oriented responsibility, lifecycle (...) risk management, and upstream public engagement. This article outlines findings from a project undertaken in 2008–2009 for the UK Government’s Department of Environment, Food and Rural Affairs (DEFRA) by BRASS at Cardiff University, involving an in-depth survey both of current corporate social responsibility (CSR) reporting in the UK nanotechnologies industry, and of attitudes to particular stakeholder issues within the industry. The article analyses the results to give an account of the nature of corporate social performance (CSP) within the industry, together with the particular model of CSR operating therein (‘do no harm’ versus ‘positive social force’). It is argued that the nature of emerging technologies requires businesses to adopt particular visions of CSR in order to address stakeholder issues, and that the nanotechnologies industry presents specific obstacles and opportunities in this regard. (shrink)

Jonathan Westphal's recent paper attempts to reconcile the view that propositions about the future can be true or false now with the idea that the future cannot now be real. I attempt to show that Westphal's proposal is either unoriginal or unsatisfying. It is unoriginal if it is just the well-known eternalist solution. It is unsatisfying if it is instead making use of a peculiar, tensed truthmaking principle.

Online communication can often seem different to offline talk. Structural features of social media sites can shape the things we do with words. In this paper, I argue that the practice of ‘quote-tweeting’ can cause a single utterance that originally performed just one speech act to later perform several different speech acts. This describes a new type of illocutionary pluralism—the view that a single utterance can perform multiple illocutionary acts. Not only is this type more plural than others (if one (...) utterance can acquire many kinds of illocutionary force), but it also shows how illocutionary forces can be accumulated over time. This is not limited to online utterances—some offline contexts are similarly structured, and so offline utterances can also come to perform many different speech acts. (shrink)

In "The Insignificance of Personal Identity to Bioethics," David Shoemaker argues that, contrary to common opinion, considerations of personal identity have no relevance to certain important debates in bioethics. My aim is to show that Shoemaker is mistaken concerning the relevance of personal identity to the abortion debate -– in particular, to Don Marquis’ well-known anti-abortion argument.

This paper traces the history of the Animal Research Station, Cambridge from its establishment in 1932 to its closure in 1986. The author worked there for forty years and was Director from 1979. Originally set up as a field station for Cambridge University’s School of Agriculture, the Station was expanded after World War II as the Agricultural Research Council’s Unit of Animal Reproduction. Beginning with semen and artificial insemination, research at the Station soon embraced superovulation and embryo transfer in farm (...) animals. Many other technologies were also developed here, including IVF in pigs, cloning by nuclear transplantation of early embryonic cells, and the first genetically modified farm animals in Britain. This account recalls the Directors of the Station and their research teams together with details of their pioneering contribution to reproductive biology. (shrink)

Public arguments can be good or bad not only as a matter of logic, but also in the sense that speakers can _do_ good or bad things with arguments. For example, hate speakers use public arguments to contribute to the subordination of their targets. But how can ordinary speakers acquire the authority to perform subordinating speech acts? This is the ‘Authority Problem’. This paper defends a solution inspired by McGowan’s (Australas J Philos 87:389–407, 2009) analysis of oppressive speech, including against (...) concerns raised by McGowan (Just words: On speech and hidden harm, Oxford University Press, Oxford, 2019) herself. A _deflated_ kind of authority can be gained from the hate speaker’s standing in a norm-governed ‘activity of oppression’. We should be wary about engaging with such speakers in public argument. Even if we counter their arguments, we may still elevate their standing within that activity and so enable them to perform more pernicious speech acts than was previously possible. (shrink)

Alan Moore and Dave Gibbons’ Watchmen may be the most acclaimed graphic novel of the twentieth century. This chapter examines how it explores two metaphysical questions: What is the nature of time? Does free will exist? Moore and Gibbons explore these questions together, illuminating connections between time and free will through connections between the graphic novel’s form and content. The chapter introduces three views of the nature of time: presentism, the view that only the present exists; growing-universe theory, the view (...) that only the present and past exist; and eternalism, the view that past, present, and future exist. Because of Moore and Gibbons’ distinct use of images and words within the visual structure and their depiction of a character who is simultaneously aware of past, present, and future events, the chapter deduces that the operative view in Watchmen is eternalism. After discussing three views of the existence of free will, the chapter then argues that eternalism entails that people could not have acted otherwise than they actually acted. Hence the operative view in Watchmen is either determinism, according to which no one has free will because no one could have done otherwise, or compatibilism, according to which people can have free will because having it merely requires having acted. The chapter concludes that the operative view is compatibilism. Finally it responds to the objection that compatibilism is mistaken. If no one could have done otherwise, then determinism must be true. (shrink)

Yes, Roya, a 2016 graphic novel written by C. Spike Trotman and illustrated by Emilee Denich, depicts Roya, a woman of color who writes and illustrates a comic strip; Joe, a white man who gave up his career after meeting Roya, who now publishes under his name; and Wylie, a young white man starting in the profession. Roya completely dominates Joe’s career, making it hers. She also partly dominates Wylie’s, acting as his mentor. Roya dominates Joe and Wylie personally too. (...) She is their sexual dominant, and they are her submissives. Professionally and personally, moreover, Joe and Wylie each submit to Roya consensually. Further, though Roya both writes and illustrates her comic strip, often writer and illustrator differ. The former, creating the story, dominates the latter, illustrating the story after the fact – as Trotman and Denich themselves did consensually via a contract when creating their graphic novel. Hence Yes, Roya highlights domination and submission in comics creation and in sex. More than that, the graphic novel also presents both kinds of domination and submission as ethical. Because Aristotle, Kant, and Mill are the most influential ethicists in the Western tradition, this chapter investigates how each could accommodate such professional and personal dominant/submissive relationships in their philosophy. (shrink)

Historically Wales has been regarded as a country with relatively low levels of school exclusion, particularly in comparison with England. This has been used as an indicator of Wales’ commitment to the UN Convention on the Rights of the Child, which foregrounds a rights-based agenda that would argue school exclusion is a consequence of broader socio-economic structures than individual actions. However, simple analyses may mask a different picture of school exclusions in Wales. In this article, we study more detailed information (...) on formal school exclusions by looking at ‘instances’ of school exclusion, which considers the frequency and length of formal school exclusions in Wales, and alongside recorded school absence. The article also demonstrates that the pupils ‘at risk’ of formal school exclusion varies by when they experience school exclusion during their educational lifecourse. The article concludes by highlighting that patterns of school exclusion are complex, and that interpretation of these patterns depends on what kind of measure of school exclusion is used. By publishing these results, the article hopes to persuade policymakers and practitioners to re-examine their processes of exclusion to ensure they are commensurate with the law and to prevent unnecessary school exclusions. (shrink)

Following Birkhoff and von Neumann, quantum logic has traditionally been based on the lattice of closed linear subspaces of some Hilbert space, or, more generally, on the lattice of projections in a von Neumann algebra A. Unfortunately, the logical interpretation of these lattices is impaired by their nondistributivity and by various other problems. We show that a possible resolution of these difficulties, suggested by the ideas of Bohr, emerges if instead of single projections one considers elementary propositions to be families (...) of projections indexed by a partially ordered set \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${\mathcal{C}(A)}$$\end{document} of appropriate commutative subalgebras of A. In fact, to achieve both maximal generality and ease of use within topos theory, we assume that A is a so-called Rickart C*-algebra and that \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${\mathcal{C}(A)}$$\end{document} consists of all unital commutative Rickart C*-subalgebras of A. Such families of projections form a Heyting algebra in a natural way, so that the associated propositional logic is intuitionistic: distributivity is recovered at the expense of the law of the excluded middle. Subsequently, generalizing an earlier computation for n × n matrices, we prove that the Heyting algebra thus associated to A arises as a basis for the internal Gelfand spectrum (in the sense of Banaschewski–Mulvey) of the “Bohrification” \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${\underline A}$$\end{document} of A, which is a commutative Rickart C*-algebra in the topos of functors from \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${\mathcal{C}A}$$\end{document} to the category of sets. We explain the relationship of this construction to partial Boolean algebras and Bruns–Lakser completions. Finally, we establish a connection between probability measures on the lattice of projections on a Hilbert space H and probability valuations on the internal Gelfand spectrum of \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${\underline A}$$\end{document} for A = B(H). (shrink)

So what is feminism anyway? Why are all the experts so reluctant to give us a clear definition? Is it possible to make sense of the complex and often contradictory debates? In this concise and accessible introduction to feminist theory, Chris Beasley provides clear explanations of the many types of feminism. She outlines the development of liberal, radical and Marxist//socialist feminism, and reviews the more contemporary influences of psychoanalysis, postmodernism, theories of the body, queer theory, and attends to the (...) ongoing significance of race and ethnicity. Given the diversity of feminist ideas, Chris Beasley a number of ways of looking at feminist theory and offer an open-ended approach which allows for variety and change. What is Feminism? is a clear and up-to-date guide to Western feminist theory for students, their teachers, researchers and anyone else who wants to understand and engage in current feminist debates. `Over the last three decades feminist theories and methodologies have become an increasingly complex as well as somewhat fraught terrain where ideas and egos alternately clash productively and destructively. This is an up-to-date and intelligent introduction to a field which remains a vital component of contemporary sociopolitical issues and debates' - Sneja Gunew, Professor of English and Women’s Studies, University of British Columbia. (shrink)

ABSTRACTThis paper examines the concept of biopiracy, which initially emerged to challenge various aspects of the regime for intellectual property rights in living organisms, as well as related aspects pertaining to the ownership and apportioning of benefits from ‘genetic resources’ derived from the world’s biodiversity.This paper proposes that we take the allegation of biopiracy seriously due to the impact it has as an intervention which indexes a number of different, yet interrelated, problematizations of biodiversity, biotechnology and IPR. Using the neem (...) tree case as an example, it describes activists’ use of the term as one that involves a deliberate simplification of science and IPR. Additionally, it argues that in so doing, biopiracy is positioned as a touchstone that mobilizes actors and problems, and ultimately generates ‘solutions’ to the very challenges it creates.The paper will also encourage a view of biopiracy claims that does not always treat them simply as claims of theft, or as a misallocation of benefits, but rather as claims that are designed to raise broader questions about the IPR system itself. It concludes by advocating that, in order to properly understand how to address biopiracy, we must be prepared to move beyond the current narrow readings to develop a more complete picture of the term’s influence in challenging how, and by whom, the decisions about what is natural and what is invented come to be made. (shrink)

This article looks at how the category of female fighters in the Sierra Leone civil war (1991–2002) was interpreted by the local population and by the international humanitarian community. The category of the female fighter both challenges and confuses the gendered stereotypes of ‘woman the victim’ and ‘man the perpetrator’ on multiple levels. Most research on ‘women and war’ focuses on women either as inherently more peaceful or merely as victims, and often unwittingly reproduces in ‘war-affected women’ a corresponding lack (...) of ‘agency’. In this article, I criticize such theorizing by demonstrating the diversity and specificity of Sierra Leonean women's war experiences, while also examining how the notion of and discourse about war itself is gendered. While it has become necessary to expand the inquiries into what women do in war and to critically analyse women's roles as perpetuators and perpetrators of war and conflict, this article maintains that in situations where one can talk about the violence of women, as in the example of female combatants, one often finds violence against women as well. (shrink)

When we defend aesthetic education in instrumental terms or rely on clichés of creativity and imagination, we win at best a pyrrhic victory. To make a lasting place for the arts in education, we must critique the transmission model of education and the instrumentalist view of life that undergirds it. To help us perceive anew the nature and value of the aesthetic, I explore John Dewey's distinction between recognition and perception. Through a series of examples drawn from painting and poetry, (...) I embody Dewey's theory and describe a number of artistic strategies for interrupting recognition and cultivating perception. (shrink)

Recently claims have been made for radical new insights in the field of invertebrate immunology that involve memory, specificity and/or maternal transfer of immunocompetence. For evidence these claims rely on phenomena, such as survival or reproductive capacity, observed at the level of the whole organism. The allure of these apparently revelatory hypotheses is that they are contrary to established views of innate immunity. They draw implicit analogy to adaptive responses in jawed vertebrates and the terminology used creates an incomplete and (...) misleading picture. We argue that the case for adaptive immunity in invertebrates based only on such phenomena is weak and flawed, as it can only be upheld if supported by descriptions of the underlying mechanisms. We caution against a reliance on this approach as a means of advancing this field—highlighting, as an example, some negative commercial implications of adopting this approach. BioEssays 29:1138–1146, 2007. © 2007 Wiley Periodicals, Inc. (shrink)