In this paper the arguments for optimal data selection and the contrast class account of negations in the selection task and the conditional inference task are summarised, and contrasted with the matching bias approach. It is argued that the probabilistic contrast class account provides a unified, rational explanation for effects across these tasks. Moreover, there are results that are only explained by the contrast class account that are also discussed. The only major anomaly is the explicit negations effect in the (...) selection task (Evans, Clibbens, & Rood, 1996), which it is argued may not be the result of normal interpretative processes. It is concluded that the effects of negation on human reasoning provide good evidence for the view that human reasoning processes may be rational according to a probabilistic standard. (shrink)

I argue that causation is a contrastive relation: c-rather-than-C* causes e-rather-than-E*, where C* and E* are contrast classes associated respectively with actual events c and e. I explain why this is an improvement on the traditional binary view, and develop a detailed definition. It turns out that causation is only well defined in ‘uniform’ cases, where either all or none of the members of C* are related appropriately to members of E*.

Commentary of Justin Garson, "Madness and idiocy: Reframing a basic problem of philosophy of psychiatry." Philosophy, Psychiatry, & Psychology.

In an influential paper, Wendy Parker argues that agreement across climate models isn’t a reliable marker of confirmation in the context of cutting-edge climate science. In this paper, I argue that while Parker’s conclusion is generally correct, there is an important class of exceptions. Broadly speaking, agreement is not a reliable marker of confirmation when the hypotheses under consideration are mutually consistent—when, e.g., we’re concerned with overlapping ranges. Since many cutting-edge questions in climate modeling require making distinctions between mutually consistent (...) hypotheses, agreement across models will be generally unreliable in this domain. In cases where we are only concerned with mutually exclusive hypotheses, by contrast, agreement across climate models is plausibly a reliable marker of confirmation. (shrink)

1. Contextualism seeks to acknowledge the power of sceptical arguments while permitting to be true at least some of the assertions of knowledge and justification we commonly make. It seems to me now just as if I am in an office in Edinburgh. According to the sceptic the claim that I am in fact in an office in Edinburgh is unjustified, since there is no reason I can give for this belief that is not also consistent with (or undermined by) (...) the alternative hypothesis that I am in fact on a beach in Hawaii being deceived by an evil demon into thinking that I am in an office in Edinburgh. Yet if I were.. (shrink)

We report two studies on the effect of implicitly versus explicitly conveying affirmation and denial problems about conditionals. Recently Evans and Handley (1999) and Schroyens et al. (1999b, 2000b) showed that implicit referencing elicits matching bias: Fewer determinate inferences are made, when the categorical premise (e.g., B) mismatches the conditional's referred clause (e.g., A). Also, the effect of implicit affirmation (B affirms not-A) is larger than the effect of implicit denial (B denies A). Schroyens et al. hypothesised that this interaction (...) is due to uncertainty in the case-wise affirmation of the contrast class of negated elements involved in implicit affirmations. In Experiment 1 we tested this hypothesis by manipulating the set size of the conditional clauses. The results confirm that binary sets, where the contrast class is a singleton, eliminate the differential effect of implicit affirmation and denial. With non-binary sets the interaction is not modulated by the scope of the contrast class (3, 5, 9 elements). Experiment 2 further investigated the role of contrast classes by using class inclusion to construct implicit affirmations (Mammal vs Mammal or Monkey) and implicit denial (No-Mammal vs Mammal or Monkey), in addition to the standard implicit problems mediated by contrast-class inclusion [(No-)Mammal/No-Mammal; Reptile; Snake). Findings indicate that class inclusion (Mammal/Monkey; Reptile/ Snake) only marginally affects performance, and is independent of the type of problem. This would suggest that the implicitness problem-type interaction is dependent on constructing contrast classes. However, the experiment failed to replicate the interaction, even on the subset of problems repeating the abstract letter/number format of Experiment 1. Moreover, with the natural binary set-sizes (vowels/consonants) the implicitness effect was eliminated entirely. (shrink)

The traditional Bayesian qualitative account of evidential support (TB) takes assertions of the form 'E evidentially supports H' to affirm the existence of a two-place relation of evidential support between E and H. The analysans given for this relation is $C(H,E) =_{def} Pr(H\arrowvertE) \models Pr(H)$ . Now it is well known that when a hypothesis H entails evidence E, not only is it the case that C(H,E), but it is also the case that C(H&X,E) for any arbitrary X. There is (...) a widespread feeling that this is a problematic result for TB. Indeed, there are a number of cases in which many feel it is false to assert 'E evidentially supports H&X', despite H entailing E. This is known, by those who share that feeling, as the 'tacking problem' for Bayesian confirmation theory. After outlining a generalization of the problem, I argue that the Bayesian response has so far been unsatisfactory. I then argue the following: (i) There exists, either instead of, or in addition to, a two-place relation of confirmation, a three-place, 'contrastive' relation of confirmation, holding between an item of evidence E and two competing hypotheses H₁ and H₂. (ii) The correct analysans of the relation is a particular probabilistic inequality, abbreviated C(H₁, H₂, E). (iii) Those who take the putative counterexamples to TB discussed to indeed be counterexamples are interpreting the relevant utterances as implicitly contrastive, contrasting the relevant hypothesis H₁ with a particular competitor H₂. (iv) The probabilistic structure of these cases is such that ∼C(H₁, H₂, E). This solves my generalization of the tacking problem. I then conclude with some thoughts about the relationship between the traditional Bayesian account of evidential support and my proposed account of the three-place relation of confirmation. (shrink)

Can an act harm someone—a future someone, someone who does not exist yet but will—if that person would never exist but for that very action? This is one question raised by the non-identity problem. Many would argue that the answer is No: an action harms someone only insofar as it is worse for her, and an action cannot be worse for someone if she would not exist without it. The first part of this paper contends that the plausibility of the (...) ‘no harm’ argument stems from an equivocation. The second half argues for an account of harm that is both causal and contrastive. Finally, the paper contends that the contrastive account disarms the no harm argument and furthermore neutralizes a related argument that has been problematic for some previously proposed solutions to the non-identity problem. (shrink)

This paper provides evidence for a contrastive account of explanation that is motivated by pragmatic theories that recognize the contribution that context makes to the interpretation of a prompt for explanation. This study replicates the primary findings of previous work in explanation-based category learning, extending that work by illustrating the critical role of the context in this type of learning. Participants interacted with items from two categories either by describing the items or explaining their category membership. We manipulated the feature (...) overlap between the categories and examined both the explanations generated and acquired knowledge of the categories. Explanations for membership in a given category were influenced by the unprompted contrast category, indicating an important role for contrastive processing in the generation of explanations. The influence of the contrast category was similarly seen in the transfer performance of the participants. (shrink)

This paper argues that race and class inequalities cannot be fully understood in isolation: their intersectional quality is explored through an analysis of how the White working class were portrayed in popular and political discourse during late 2008 (the timing is highly significant). While global capitalism reeled on the edge of financial melt-down, the essential values of neo-liberalism were reasserted as natural, moral and efficient through two apparently contrasting discourses. First, a victim discourse presented White working people, and their children (...) in particular, as suffering educationally because of minoritised racial groups and their advocates. Second a discourse of degeneracy presented an immoral and barbaric underclass as a threat to social and economic order. Applying the 'interest-convergence principle', from Critical Race Theory, the discourses amount to a strategic mobilisation of White interests where the 'White, but not quite' status of the working class (Allen, 2009) provides a buffer zone at a time of economic and cultural crisis which secures societal White supremacy and provides a further setback to progressive reforms that focus on race, gender and disability equality. The existence of poor Whites, therefore, is not only consistent with a regime of White supremacy — they are actually an essential part of the processes that sustain it. (shrink)

This article presents a theoretical framework that views interpersonal power as interdependent with broader structures of gender and class inequalities. In contrast to oversimplified, gender-neutral or gender-static approaches, this approach illuminates the ways that structures of inequality are expressed in ideological hegemonies, which enhance, legitimate, and mystify the interpersonal power of privileged men relative to lower-status men and women in general. The discussion centers on how the relational construction of ascendant and subordinated masculinities provide men with different modes of interpersonal (...) power that, when exercised, construct and reaffirm interclass male dominance. Examples of how the construction of femininity can undermine women's interpersonal power and implications for other forms of masculinities and femininities are discussed. Examples are drawn from an analysis of conjugal power in the accounts of remarried individuals' first and second marriages to illustrate the main points of this perspective. (shrink)

In some philosophical arguments an important role is played by the claim that certain situations differ from each other with respect to phenomenology. One class of such arguments are minimal pair arguments. These have been used to argue that there is cognitive phenomenology, that high-level properties are represented in perceptual experience, that understanding has phenomenology, and more. I argue that facts about our mental lives systematically block such arguments, reply to a range of objections, and apply my critique to some (...) examples from the literature. (shrink)

We give a general description of a class of contrastive constructions, intended to capture what is common to contrastive knowledge, belief, hope, fear, understanding and other cases where one expresses a propositional attitude in terms of “rather than”. The crucial element is the agent's incapacity to distinguish some possibilities from others. Contrastivity requires a course-graining of the set of possible worlds. As a result, contrastivity will usually cut across logical consequence, so that an agent can have an attitude to p (...) rather than q but not to r rather than q , where r is a logical consequence of p . We relate these ideas to some general issues about thought, such as the question of whether all possibilities that can be distinguished in emotion can be distinguished in belief. (shrink)

The problem of mental causation is discussed by taking into account some recent developments in the philosophy of science. The problem is viewed from the perspective of the new interventionist theory of causation developed by Woodward. The import of the idea that causal claims involve contrastive classes in mental causation is also discussed. It is argued that mental causation is much less a problem than it has appeared to be.

Some may say the rise of parochial, sectarian populism has indicated a failure of civic education. On the other hand, it might be said to demonstrate the increasing power of some alternative forms of education. This paper hopes to shed light on how ordinary people learn in ways and through means that are at odds with the experiences of scholars and elites. To do so it explores the intersections of education, technology, and social mobility, to highlight how people learn social (...) class, and learn in classed ways outside schools. In contrast to the dream of information liberty, this article considers how online media is marked by private control of information, often retracing and broadening gaps between social classes. The article provides a theoretical understanding of the relationship between technology and education and the linkages of class and media consumption. It then integrates these topics by exploring how online learning through segmented social media operates to reproduce class and facilitate and mobilize sectarianism. This paper concludes with a recommendation for more focus on the study of class by philosophers interested in education for democracy and social justice. (shrink)

Using a multimethod approach, this article examines the link between class and masculinities by comparing the way two groups—professional men and working-class men —practice fatherhood. First, the authors show that these two groups practice different types of masculinity as they engage in different kinds of fatherhood. Physicians emphasize “public fatherhood,” which entails attendance at public events but little involvement in the daily care of their children. In contrast, EMTs are not only involved in their children's public events but also emphasize (...) “private fatherhood,” which entails involvement in their daily care. Second, the authors suggest that these differing types of involvement can be explained by the contrasting employment conditions of each group as well the gender order of their families, especially the divergent labor market positions of spouses and the division of parenting. The authors conclude by arguing that these working-class fathers are “undoing gender” while professional fathers reproduce the conventional gender order. (shrink)

I argue for the importance of class-based analysis for analyzing the justice of migration policies. I contend that the abstract, liberal discourse of much writing on justice and immigration distorts our moral judgments. In contrast, I provide a class-based critique of the role of human capital in managed migration, drawing evidence from Canada’s Seasonal Agricultural Worker and Live-in Caregiver Programs. This reveals the domination and exploitation inherent in these migration policies and allows us to situate immigration in a broader framework (...) of global justice. (shrink)

From the perspective of gender theory, the intersections among gender, class, and race make it difficult, if not impossible, to assign political issues and identities to just one social movement. Instead, the negotiation of movement ownership of issues and identities occurs through interaction among social movements, including interactions that create denial and distance. This article takes the interaction of labor organizing and feminism as the lens for studying movement interaction at three levels: opportunity structure, organizing practices, and framing ideas. Using (...) a case study of a strike of day care workers in West Berlin in the winter of 1989-90, it contrasts inclusive and exclusive forms of solidarity and their consequences for organizational practices. This particular strike received little support from either feminists or the labor movement and eventually failed, an outcome that can be seen as reflecting the weakness of structural and organizational supports for frames favoring inclusive solidarity. (shrink)

This book re-evaluates New Left and Marxist texts from the 1980s, in order to explore problems facing the study of 'class' which have emerged within Australian and international theories. The author contrasts the popular ideas of Connell, Bourdieu and the 'Death of Class' thesis, with those of lesser known texts, concluding that no single definition can account for the various historical meanings of class. Instead, loosely following Castoriadis, the concept of class can best be understood as creatively imagined and institutionalised. (...) Paternoster proposes that class is best studied through historical phenomenology, which can be used to link political economy, cultural sociology and anthropological ethnographies. This approach allows the contributions of Marxist and New Left authors to be reintegrated with contemporary theories. Doing so highlights the significance of labour populism, while cautioning against the ahistorical applications of texts such as Boudieu's Distinction. Reimagining Class in Australia will be of interest to students and scholars across a range of disciplines, including sociology, history, political economy and anthropology. (shrink)

This essay explores recent developments surrounding the Fourth Industrial Revolution, particularly as they relate to the challenge of technological unemployment. In an age of advanced robotics and artificial intelligence (Al), so warns the philosopher-historian Yuval Noah Harari, ordinary people may become unemployable, unable to contribute to society, and therefore be declared a “useless class.” In contrast to such a dystopian view, futurists like Ray Kurzweil and Nick Bostrom envision a digital utopia, while more realistic optimists emphasize that Al will ultimately (...) create more jobs than it destroys. As an alternative to these perspectives, this essay proposes a Judeo- Christian approach that, independently of traditional frameworks of paid work, affirms the unique value and dignity of all human beings by highlighting the theological significance of human creativity, the balance between work and play, love as an overarching framework for life, and the role of human beings as ethical decision-makers. (shrink)

The circumscription of taxa and classification of organisms are fundamental tasks in the systematization of biological diversity. Their success depends on a unified idea concerning the species concept, evolution, and taxonomy; paradoxically, however, it requires a complete distinction between taxa and evolutionary units. To justify this view, I discuss these three topics of systematics. Species concepts are examined, and I propose a redefinition for the Taxonomic Species Concept based on nomenclatural properties, in which species are classes conventionally represented by a (...) binomial. Speciation is subsequently discussed, to demonstrate that concepts on the evolutionary process are damaged when species are considered as evolutionary units. Speciation should be considered a transition among patterns of a population and, consequently, always a sympatric process. This view contrasts with the majority of speciation models, which analyze cladogeneses and classify speciation geographically, usually considering allopatry the essential condition for the differentiation process. Finally, taxonomy is considered, to show that the equivalence between evolutionary and taxonomic units may also damage the practice of biological systematization. Principles and rules of nomenclature and classification should offer freedom to accommodate divergent opinions about systematics and to incorporate the evolution of knowledge; therefore, they should remain independent of biological theories. (shrink)

There are two major theories of properties that employ resemblance classes to avoid commitment to universals.1 Object-resemblance nominalism ~ORN! faces the notorious companionship and imperfect community difficulties, though some costly remedies have been proposed. Trope-resemblance nominalism ~TRN!, in contrast, is commonly supposed to avoid these difficulties altogether. My contention is that both versions of resemblance nominalism are subject to companionship and imperfect community difficulties. If I am right, ~1! trope theory loses one of its primary selling points, and ~2! resemblance (...) nominalists of either type must appeal to the troublesome remedies that I discuss below. (shrink)

A class K of structures is controlled if for all cardinals λ, the relation of L∞,λ-equivalence partitions K into a set of equivalence classes . We prove that no pseudo-elementary class with the independence property is controlled. By contrast, there is a pseudo-elementary class with the strict order property that is controlled 69–88).

Neoliberal restructuring and the feminization of export-led industries are often associated with the disempowerment of women in the workplace. Surprisingly, this disempowerment was not the case with a public textile company in Mahalla, an industrial city north of Cairo. Between 2006 and 2008, workers organized wildcat strikes involving around 24,000 workers. In contrast to the strike waves of the 1980s, women were integral to organizing the strikes and assumed leadership roles in them. This article argues that even as Egypt adopted (...) structural adjustments in the 1990s that led to the decline of the historically leading sectors of textiles and yarn, exports of clothing increased. By the 2000s, the clothing sector was completely feminized and women in Mahalla were positioned in the most productive departments. This change empowered women by elevating their role and induced skeptical male colleagues to support women’s activism in the company and to build cross-gender solidarity. (shrink)

A “contrastive explanation” explains not only why some event A occurred, but why A occurred as opposed to some alternative event B. Some philosophers argue that agents could only be morally responsible for their choices if those choices have contrastive explanations, since they would otherwise be “luck infested”. Assuming that contrastive explanations cannot be offered for causally undetermined events, this requirement entails that no one could be held responsible for a causally undetermined choice. Such arguments challenge incompatibilism, since they entail (...) that causal determinism is a prerequisite for moral responsibility. However, I argue that for a significant class of choices, even if we stipulate that they are determined, we will be unable to provide a relevant contrastive explanation. Hence causal determinism is no remedy for luck infestation, and compatibilists do not fare much better than incompatibilists in the face of this requirement. This should serve to weaken its philosophical appeal. (shrink)

A pragmatic account of scientific understanding is used both to examine and to unify fundamental questions concerning the propensity interpretation of probability and theories of chance, causation, and explanation. One of the most important problems to be addressed is the problem of defining homogeneous reference classes in theories of chance, causation, and explanation. The consistency of the propensity interpretation is defended against traditional criticisms such as "Humphreys's paradox." It is demonstrated that the application of this interpretation to theories of chance (...) and probabilistic causation provides insights into problems common to both theories. Various approaches to causation are examined, including those based on identifying sufficient causal factors, necessary causal factors, and contrastive causes. These insights are applied to quantum mechanics and are presented in terms of a set of controlled experiments. The study of quantum mechanics focuses on the paradox of the two slit experiment and quantum logical and quantum probabilistic attempts to resolve this paradox. Finally, the analysis of chance and causation provides the basis for a version of the contrastive theory of explanation. This theory of explanation provides a unique understanding of the nature of explanation, and lessens the impact of the problems of homogeneity and of explanatory ambiguity. (shrink)

Evolutionary biology distinguishes differences in survival and reproduction rates due to selection from those due to drift. The distinction is usually thought to be founded in probabilistic facts: a difference in (say) two variants' average lifespans over some period of time that is due to selection is explained by differences in the probabilities relevant to survival; in the purest cases of drift, by contrast, the survival probabilities are equal and the difference in lifespans is a matter of chance. When there (...) is a difference in actual average lifespans there is always a difference in causal histories, but in drift, the causal differences make no contribution to the relevant probabilities. Some writers have claimed that the framework that determines which causes contribute to the probabilities, and so the framework that determines when the relevant probabilities differ and when they are equal, is imposed by modelers rather than being an objective fact of nature, and so that the distinction between selection and drift, however practically useful, is unreal. This paper uses my work on biological probabilities (Bigger than Chaos) and probabilistic explanation (Depth) to argue for the objectivity of, and the importance of the objectivity of, the distinction between selection and drift. (shrink)

Some of the important conceptual debates between different approaches to class analysis can be interpreted as reflecting different ways of linking temporality to class structure. In particular, processual concepts of class can be viewed as linking class to the past whereas structural concepts link class to the future. This contrast in the temporality of class concepts in turn is grounded in distinct intuitions about why class is explanatory of social conflict and social change. Processural approaches to class see its explanatory (...) power as deriving from the way meanings and identities are linked to class via a history of experiences; structural approaches, in contrast, emphasize the linkage between class and perceived interests via the objective possibilities facing people in different class locations. This paper tries to integrate these two temporalities by exploring the ways in which trajectories of class experience intersect structures of objective possibility in shaping different dimensions of class consciousness. (shrink)

Many epistemologists treat knowledge as a binary relation that holds between a subject and a proposition. The contrastive account of knowledge developed by Jonathan Schaffer maintains that knowledge is a ternary, contrastive relation that holds between a subject, a proposition, and a set of contextually salient alternative propositions the subject’s evidence must eliminate. For the contrastivist, it is never simply the case that S knows that p; in every case of knowledge S knows that p rather than q. This paper (...) offers a counterexample to the contrastive account of knowledge. Part 1 summarizes the contrastive theory developed by Schaffer in a series of recent papers. Part 2 presents an example from a class of cases characterized by compatibility between the proposition p and each of the alternative propositions that occupy q. In such cases the alternative propositions that partially constitute the ternary contrastive relation play no role in the acquisition of knowledge. Part 3 considers and rejects potential responses to the counterexample. The paper concludes that the contrastive theory is not a general account of knowledge. (shrink)

The International Institute for Applied Systems Analysis (IIASA) in Laxenburg, Austria, was founded during the period of détente in 1972 to bring scientists from East and West together to research shared problems and thus to build a “bridge” between the two opposed systems. The underlying image of knowledge at the institute was in stark contrast to the intellectual culture established in East Germany. Contributing to our understanding of the history of Cold War knowledge transfer, this essay reconstructs East Germany’s ambivalent (...) and complex role at IIASA. Even if participation was considered important for displaying East German science, the essay argues that East Germany’s contribution was caught up in the perception of the Western scholar as a class enemy. It illustrates this by examining the best-documented case: that of Harry Maier, a social scientist who spent two years at IIASA between 1978 and 1980 and then, in 1986, used a conference visit to escape from East Germany. (shrink)

Michel Foucault’s analysis of pastoral power has generated a large body of work in many different disciplines. Much of it has considered the paradox of the power of “each and all” or has seen pastoral power as an extension of the disciplinary gaze into welfare state policy. The political economy of the pastorate and the mutual dependence of sovereign and pastoral power, by contrast, are both relatively neglected. This article focuses on the exercise of pastoral power in a moral and (...) political economy and examines the “arts of government” through which the Catholic Church attempted to claim that pastors lived from the flock only to live for it. While there is heuristic value in Foucault’s diagram of pastoral power, in practice that power cannot be separated from class relations and political sovereignty. Empirical material is drawn from the novel attempt of Britain to govern its Quebec colony through the Catholic Church. (shrink)

We investigate the hypothesis that our conceptual systems provide two formally distinct ways of representing categories by investigating the manner in which lexical nominals (e.g., tree, picnic table) and phrasal nominals (e.g., black bird, birds that like rice) are interpreted. Four experiments found that lexical nominals may be mapped onto kind representations, whereas phrasal nominals map onto class representations but not kind representations. Experiment 1 found that phrasal nominals, unlike lexical nominals, are mapped onto categories whose members need not be (...) of a single kind. Experiments 2 and 3 found that categories named by lexical nominals enter into both class inclusion and kind hierarchies and thus support both class inclusion (is a) and kind specification (kind of) relations, whereas phrasal nominals map onto class representations which support only class inclusion relations. Experiment 4 showed that the two types of nominals represent hierarchical relations in different ways. Phrasal nominals (e.g., white bear) are mapped onto classes that have criteria of membership in addition to those specified by the class picked out by the head noun of the phrase (e.g., bear). In contrast, lexical nominals (e.g., polar bear) specify one way to meet the criteria specified by the more general kind concept (e.g., bear). Implications for the language–conceptual system interface, representation of hierarchical relations, lexicalization, and theories of conceptual combination are discussed. (shrink)

This discussion focuses on two important trends in American childbirth that have emerged in the past 30 years, the demand for a perfect baby and the desire for a perfect birth. These two trends are particularly important in the subgroup of middle-class women who have decided on delayed childbearing. Tremendous technological innovations, such as ultra-sound, prenatal genetic analysis, and fetal monitoring, have promoted the perception that physicians can control the prenatal environment and predict the pregnancy outcome. This expectation may lead (...) to bitterness and anger in the event of an adverse pregnancy outcome. In contrast, women and their families have also come to desire more control over the birth experience. If the parents’ birth plan is not achieved and their expectations not fulfilled, many parents feel they have not performed well. When the physician acts as a guide in the birth process, parents and physicians together may transcend the conflict to achieve a more satisfactory birth experience. (shrink)

We show that any (atomic) excellent class K can be expanded with hyperimaginaries to form an (atomic) excellent class Keq which has canonical bases. When K is, in addition, of finite U-rank, then Keq is also simple and has a full canonical bases theorem. This positive situation contrasts starkly with homogeneous model theory for example, where the eq-expansion may fail to be homogeneous. However, this paper shows that expanding an ω-stable, homogeneous class K gives rise to an excellent class, which (...) is simple if K is of finite U-rank. (shrink)

Helix–loop–helix (HLH) genes encode for transcription factors affecting a whole variety of developmental programs, including neurogenesis. At least seven functional classes (denoted I to VII) of HLH genes exist,1 with subclass members exhibiting homo‐ and heterodimerisation for proper DNA binding and transcriptional regulation of downstream target genes. In the developing nervous system, members of class II, V and VI have been most extensively studied concerning their roles in neural programming. In contrast, the function of class I proteins (such as E12 (...) and E47) is poorly defined and the orthodox view relegates them to general dimerisation duties that are necessary for the activity of the other classes. However, closer scrutiny of the spatiotemporal expression patterns of class I factors, combined with recent biochemical evidence, would suggest that class I proteins possess specific functions during early neural differentiation. This essay supports this possibility, in addition to putting forward the hypothesis that, outside their general dimerisation activity, class I genes have independent roles in regulating neurogenesis. BioEssays 25:709–716, 2003. © 2003 Wiley Periodicals, Inc. (shrink)

Since 1945 regions undergoing dependent development have displayed a great diversity of regime outcomes. In contrast, the nations of the capitalist core have experienced relatively stable democratic regimes. In this paper I begin the development of a theoretical framework for comprehending these diverse patterns. I argue that regime outcomes vary across regions of the capitalist world economy because structural economic constraints also vary by region. Dependent economies are characterized by two major constraints: 1) the lack of a locally dynamic accumulation (...) process and 2) the persistence of widespread and deep income inequalities. These two factors increase the level of class conflict even while they reduce the level of state resources. Thus, regime officials have insufficient resources to address accumulation and consumption demands simultaneously. Variation in regime outcome in the capitalist periphery is produced by variation in "situations of dependency" (i.e., the forms of integration into the capitalist world economy) that produce different class structures and levels of economic constraints. In the capitalist core, however, locally dynamic accumulation processes and relatively low income inequality provide the structural conditions for stable democratic regimes. (shrink)

The causal characters (spacelike, lightlike, timelike) of the coordinate lines, coordinate surfaces and coordinate hypersurfaces of a coordinate system in Relativity define what is called its causal class. It is known that, in any relativistic space-time, there exist one hundred and ninety nine such causal classes. But in Newtonian physics (where only spacelike and timelike characters exist) the corresponding causal classes have not been discussed until recently. Here it is shown that, in sharp contrast with the relativistic case, in Newtonian (...) space-time the different causal classes of coordinate systems are drastically reduced to four. These causal classes admit simple geometric descriptions and physical interpretations. For example, it is shown that one can generate coordinate systems of the four causal classes by means of the sole linear synchronization group, i.e. by coordinate transformations that only change the origin of time linearly. The relativistic analogs of these examples are also considered. (shrink)

Frederich Engels (1820-1895) was a German businessman and political theorist renowned as one of the intellectual founders of communism. In 1842 Engels was sent to Manchester to oversee his father's textile business, and he lived in the city until 1844. This volume, first published in German in 1845, contains his classic and highly influential account of working-class life in Manchester at the height of its industrial supremacy. Engels' highly detailed descriptions of urban conditions and contrasts between the different classes in (...) Manchester were informed from both his own observations and his contacts with local labour activists and Chartists. Extensively researched and written with sympathy for the working class, this volume is one Engels' best known works and remains a vivid portrait of contemporary urban England. This volume is reissued from the English edition of 1892, which was translated by noted social activist Florence Kelley Wischnewetzky (1859-1932). (shrink)

This investigation examines the discursive history and contemporary courtroom discourse of expert witnesses in Anglo-American courts, incorporating the methods of Michel Foucault into a Critical Discourse Analysis framework. The history of experts is marked by a profound discontinuity in the role of experts, during the late medieval period, with experts relegated to a witness role instead of a juror role - that of the privately knowledgeable investigator - they previously held. Examination of the discourse of contemporary experts in three high-profile (...) US trials documents a different witness status for experts along three parameters: amplification of question responses; the use of the contrastive discourse marker well to express professional disagreement with their interlocutors; and the embedding of professional practices into so clauses. These parameters stand in sharp contrast to ordinary witness discourse. The study concludes with a discussion of the stakes in legal control of expert witnesses including asymmetrical access to experts by economic status, the possible suppression of some expert testimony by recent US Supreme Court decisions, and the hierarchicalization of expert knowledge. (shrink)

This article demonstrates how class and racial dynamics generate different styles of activism among women's movement organizations. Based on a comparative study of two feminist organizations—one composed of lower-class women of color and another of upper-class white women—it charts the formation of divergent types of gender politics. First, it explores how differences in the class and racial backgrounds of the memberships create distinct organizational needs; second, how these divergent political interests motivate contrasting organizational ideologies, activities, and structures; and finally how (...) they motivate different approaches to the wider women's movement. At the conclusion, implications are drawn for cross-class/race alliances among grassroots women's organizations. (shrink)

A general method for constructing a new class of topological Ramsey spaces is presented. Members of such spaces are infinite sequences of products of Fraïssé classes of finite relational structures satisfying the Ramsey property. The Product Ramsey Theorem of Sokič is extended to equivalence relations for finite products of structures from Fraïssé classes of finite relational structures satisfying the Ramsey property and the Order-Prescribed Free Amalgamation Property. This is essential to proving Ramsey-classification theorems for equivalence relations on fronts, generalizing the (...) Pudlák–Rödl Theorem to this class of topological Ramsey spaces. To each topological Ramsey space in this framework corresponds an associated ultrafilter satisfying some weak partition property. By using the correct Fraïssé classes, we construct topological Ramsey spaces which are dense in the partial orders of Baumgartner and Taylor generating p-points which are k-arrow but not \-arrow, and in a partial order of Blass producing a diamond shape in the Rudin-Keisler structure of p-points. Any space in our framework in which blocks are products of n many structures produces ultrafilters with initial Tukey structure exactly the Boolean algebra \\). If the number of Fraïssé classes on each block grows without bound, then the Tukey types of the p-points below the space’s associated ultrafilter have the structure exactly \. In contrast, the set of isomorphism types of any product of finitely many Fraïssé classes of finite relational structures satisfying the Ramsey property and the OPFAP, partially ordered by embedding, is realized as the initial Rudin-Keisler structure of some p-point generated by a space constructed from our template. (shrink)

The chapter deals with the contrast between defining aspects of religious rigidity, a socio-historically derived counter-narrative, and anti-consumerism in Rastafarian philosophy and culture on one hand and the universal message and commercial success of the music on the other. After discussing the status of the genre as part of Jamaican national culture, the inherent socio-political claim of Reggae and Rastafarian culture are put in context with the conflicting claims of superiority and non-partiality that can frequently be found in the music. (...) Along the lines of religious doctrines in Rastafarian culture and the attempted spiritual transcendence of racism the chapter closes with an exploration of the genre's signature tropes of social justice and anti-materialism, also considering the less strictly defined identity-constructions of recent artists linked to the Reggae Revival movement. "Martin A. M. Gansinger's study of Reggae and class employs Rastafarianism as a key ingredient of both concepts. Gansinger contends that Rastafarianism offers a "spirituality-based consciousness" that lends itself to an egalitarian-driven social consciousness. Reggae's strong social, political and culture capital as a philosophy of liberation owes much to Rastafarianism, which, for all its contradictions, embodied in categories such as the "righteous" and the "wicked", as well as its segregationalist and patriarchal past, offers a means through which the music advances a socially transformative spirituality that may play a part in the rediscovery of a truly social consciousness." (Ian Peddie, Introduction to The Bloomsbury Handbook of Popular Music and Social Class). (shrink)

We define an applicative theoryCL 2 similar to combinatory logic which can be interpreted in classes of functions possessing an enumerating function. In contrast to the models of classical combinatory logic, it is not necessarily assumed that the enumerating function itself belongs to that function class. Thereby we get a variety of possible models including e. g. the classes of primitive recursive, recursive, elementary, polynomial-time comptable ofɛ 0-recursive functions.We show that inCL 2 a major part of the metatheory of enumerated (...) classes of functions can be developed. Namely, a kind of λ-abstraction can be defined and abstract versions of theS n m - and (Primitive) Recursion Theorems are proved. Thereby, a closer analysis of the phenomenon of the different recursion theorems is achieved.A theory closely related toCL 2 can be used to replace the applicative part of Feferman's theories for explicit mathematics. So this work can be seen as an answer to Feferman's question to formulate a theory for explicit mathematics in which operations can be interpreted as primitive recursive or even more feasible ones.Finally it is shown that the proof-theoretical strength of various theoreies for explicit mathematics is preserved when replacing the applicative part of the theories by our theory together with an operation for primitive recursion. (shrink)

This paper offers a contrast between “content-first” course design, and “skills-first” course design. The traditional lecture format is a paradigmatic example of the former, by the later I mean courses that emphasize the sustained practice of skills integral to the discipline. Two arguments are offered for adopting, other things being equal, the skills-first design. One is the “content-plus” argument that the skills-first course design does a better job of promoting content acquisition than a content-first class. The second argument, the “skills-plus” (...) argument, claims that a skills-first course design has the added value of better promoting philosophical skills as compared with a content-first course. (shrink)

In this article, we analyse the ontological import of adding classes to set theories. We assume that this increment is well represented by going from ZF system to NBG. We thus consider the standard techniques of reducing one system to the other. Novak proved that from a model of ZF we can build a model of NBG (and vice versa), while Shoenfield have shown that from a proof in NBG of a set-sentence we can generate a proof in ZF of (...) the same formula. We argue that the first makes use of a too strong metatheory. Although meaningful, this symmetrical reduction does not equate the ontological content of the theories. The strong metatheory levels the two theories. Moreover, we will modernize Shoenfields proof, emphasizing its relation to Herbrands theorem and that it can only be seen as a partial type of reduction. In contrast with symmetrical reductions, we believe that asymmetrical relations are powerful tools for comparing ontological content. In virtue of this, we prove that there is no interpretation of NBG in ZF, while NBG trivially interprets ZF. This challenges the standard view that the two systems have the same ontological content. (shrink)

This article examines the ways in which ideologies of aspiration, inclusion, and women’s empowerment associated with India’s globalizing knowledge economy are re-framed by young women workers in a small-town business-process outsourcing center two hours outside of Bangalore. Drawing on forty in-depth interviews, I show that, in contrast to their managers’ expectations of individualized work aspirations, women workers draw on both individualistic and domestically embedded articulations of the future in a formulation I call “flexible aspirations.” In articulating flexible aspirations, they draw (...) both on the gendered language of neoliberal self-improvement for the global economy and on the nationalist ideal of rural middle-class feminine domesticity. While insisting that the future is uncertain, young women use flexible aspirations as a symbolic resource to distinguish themselves from both old-fashioned village housewives and promiscuous urban call center girls. I briefly compare these flexible aspirations to young men workers’ strategic articulations of aspiration, which, rather than relinquishing hopes to an unpredictable future, adjust plans to fit known social limitations. This article, drawing on feminist interpretations of Bourdieu, extends the literature on the Indian middle classes by analyzing young women’s aspirations in non-elite social locations. It builds on this feminist scholarship by highlighting ways in which young women use articulations of flexible aspiration as a mode of gendered class distinction. (shrink)

The quantization error in a fixed-size Self-Organizing Map (SOM) with unsupervised winner-take-all learning has previously been used successfully to detect, in minimal computation time, highly meaningful changes across images in medical time series and in time series of satellite images. Here, the functional properties of the quantization error in SOM are explored further to show that the metric is capable of reliably discriminating between the finest differences in local contrast intensities and contrast signs. While this capability of the QE is (...) akin to functional characteristics of a specific class of retinal ganglion cells (the so-called Y-cells) in the visual systems of the primate and the cat, the sensitivity of the QE surpasses the capacity limits of human visual detection. Here, the quantization error in the SOM is found to reliably signal changes in contrast or colour when contrast information is removed from or added to the image, but not when the amount and relative weight of contrast information is constant and only the local spatial position of contrast elements in the pattern changes. While the RGB Mean reflects coarser changes in colour or contrast well enough, the SOM-QE is shown to outperform the RGB Mean in the detection of single-pixel changes in images with up to five million pixels. This could have important implications in the context of unsupervised image learning and computational building block approaches to large sets of image data (big data). (shrink)