Repulsive adaptation effects are widely assumed to obtain for all perceptually represented dimensions. However, the ubiquity of adaptation effects within perception remains untested. We examined ensemble size adaptation as a case study to probe whether adaptation occurs for all perceptually encoded properties. Across four experiments, we investigated whether observers adapt to average size and/or cumulative size of dot arrays. In Experiments 1a, 1b, and 1c, participants adapted to displays varying in cumulative and/or average dot size, then judged either the average (...) dot size (1a) or cumulative dot size (1b) of paired test displays. Results revealed robust adaptation to cumulative size but not average size, regardless of task instructions, and even when confounds with brightness were controlled for (1c). Experiment 2 tested "reverse" adaptation to displays containing smaller average and/or cumulative dots size and, again, found adaptation effects for cumulative size only. The observed lack of adaptation to average size across each of these experiments forces a reinterpretation of previous studies that have investigated size adaptation and calls into question arguments which have assumed adaptation to be universal within perception, given a large body of work that finds average size to be perceptually encoded. (shrink)

A major goal of this work is to specify some steps of the process by which participants maintain coherency in their conversations.The underlying element of the analysis is a construct called a “context space.” Roughly, a group of utterances that refers to a single issue or episode forms the basis for a context space. Superficially, a conversation is a sequence of utterances; at a deeper level it is a structured entity whose utterances can be parsed into hierarchically related context spaces.As (...) a conversation proceeds, each conversant builds a discourse model that includes the conversation's context space structure, a notion of the present discourse topic, and a list of items being focused upon. Conversational coherency depends upon a lack of conflict between the respective models of the participants. Conflicts are prevented by speakers following high level syntactic and semantic relational rules that enable listeners to identify their discourse models. These rules, given in the study, are highly integrated with the view of conversation presented here—a hierarchy of related context spaces. (shrink)

This article investigates agency as a way of being and acting in sustainability leadership. Our primary aim is to enhance understanding of agentic strategies that facilitate transcending systemic complexities in sustainability leadership. We make a distinction in our analytical approach by drawing from Emirbayer and Mische’s conceptualisation of agency as ‘an interactive process of reflexive transformation and relational pragmatics, a temporally embedded process of social engagement, informed by the past, oriented towards the future and enacted in the present’ . We (...) add ontological sources of agency to these dynamics which interact with habit, imagination, judgement and learning in the transformation of social systems. This approach underpins our model ‘Dynamic Interactions of Agency in Leadership’ , an integrative framework for analysing agency in sustainability leadership. We examine the efficacy of our framework in higher education initiatives in which sustainability aspirations, aims and actions are envisioned, articulated and mobilised. We conclude by offering further avenues of research in sustainability leadership designed to advance this burgeoning field and contribute to bridging the gap between sustainability challenges and our abilities to solve them. (shrink)

To better understand the influence of religiosity and spirituality on moral reasoning, 1,037 college students completed a survey including demographic questions, a religiosity measure, a spirituality measure, and Forsyth's Ethical Position Questionnaire. Religiosity and spirituality positively correlated with moral idealism, whereas spirituality negatively correlated with moral relativism. However, religiosity and spirituality accounted for a very little variability in moral reasoning, suggesting that they do not directly influence moral reasoning. In addition, female participants reported higher spirituality, but there were no gender (...) differences on a spirituality measure. Future research is needed to examine other factors that may influence moral reasoning. (shrink)

Summary Traditional accounts of seventeenth-century English republicanism have usually presented it as inherently anti-monarchical and anti-democratic. This article seeks to challenge and complicate this picture by exploring James Harrington's views on royalism, republicanism and democracy. Building on recent assertions about Harrington's distinctiveness as a republican thinker, the article suggests that the focus on Harrington's republicanism has served to obscure the subtlety and complexity of his moral and political philosophy. Focusing on the year 1659, and the pamphlet war that Harrington and (...) his supporters waged against their fellow republicans, it seeks to re-emphasise important but neglected elements of Harrington's thought. It suggests that the depth and extent of Harrington's sympathy with royalists and royalism has been underplayed, while too little attention has been paid to the fundamental differences between his ideas and those adopted by other republican thinkers at the time. In addition it brings to light, for the first time, Harrington's innovative endorsement of both the term and the concept of ?democracy? and draws attention to his intellectual and personal affinities with the Levellers. Finally it outlines some implications of these findings for understandings of English republicanism and the republican tradition more generally. (shrink)

For nearly a quarter of Darwin's Descent of Man , it is the singing bird whose voice presages the development of human aesthetics. But since the 1950s, aesthetics has had a perilous and contested role in the study of birdsong. Modern ornithology's disillusionment with aesthetic knowledge after World War II brought about the removal of musical studies of birdsong, studies which were replaced by work with the sound spectrograph, a tool that changes the elusive sounds of birdsong into a readable (...) graphic image called a spectrogram. This article narrates the terms under which the image, rather than the sound, of birdsong has become a sign of humanity's ability to reason objectively. Drawing examples from the strange evolutionary tales that exist at the juncture of ornithology, music history, illustration, and linguistics, this story suggests how it was that the human ear disappeared in the unbridgeable gap between the sciences and the study of aesthetics so tellingly termed "the humanities.". (shrink)

In “What Does Environmental Protection Protect?” Mark Sagoff argues that there is no ecological way to test the claim that natural ecosystems are complex adaptive systems. In this critical commentary, I recreate that argument, object to it, and attempt to clarify its normative upshot. I show that Sagoff relies on substantive assumptions about (1) the tools and methods of ecological science, (2) what can be done with those tools and methods, and (3) ecology’s being separable from other disciplines, all of (...) which are controversial and in need of defense. I also identify five different ways that one might interpret the action-guiding recommendation that Sagoff wants to make on the basis of that argument, and I explain why all five are somewhat problematic. (shrink)

New York City has a long history of gentrification, well demonstrated by the strategies of “revitalization” and “re-development” that have occurred in Harlem throughout the last century. Less well known is the historical, political, and social context surrounding New York’s Pier 45, also known as the Christopher Street Pier. As a historically-known gathering spot for lesbian, gay, bisexual and transgender individuals, the Christopher Street Pier gained recognition for harbouring what could be described as a queer public . However, recent processes (...) of gentrification have changed Pier 45 into the Hudson River Park, ostensibly privatizing the site. With reference to Braidotti’s nomadic subject, this paper explores the Christopher Street Pier as a representation of queer geographies. Further, it argues that the re-appropriation of the once queer public space of Pier 45 exposes a municipal agenda of surveillance in relation to sexualized and racialized identities. Through reference to the activist practices of FIERCE, a local NGO, I show how the nomadic subjectivities of queer youth open up a discussion of ethical responsibility and point toward strategic movements of resistance in the face of gentrification in New York’s West Village. (shrink)

McDonald offers insights from in-depth interviews with twelve long-term vegans. I have done similar qualitative work with two focus groups, and I have done a quantitative survey with 385 respondents recruited through vegetarian channels . Several points McDonald made can be confirmed or expanded upon from these studies, and there are other important considerations in the investigation of becoming vegetarian or vegan. As McDonald says, the current literature on becoming vegetarian or vegan is scant. One addition is recent figures on (...) the percentage of the American population that is vegetarian. A Zogby Poll shows that 2.5% of Americans - the vegetarians - never eat meat, poultry, or fish. Nine of the 968 polled - the vegans - also eat no dairy, eggs, or animal products. My findings were similar to McDonald's on the importance of reading vegan materials to maintain a vegan lifestyle. Similarly, my focus groups' remarks echoed the travails of persuading others and finding social support. The interplay of emotion and logic is also echoed, with some people starting with one and including the other. The survey suggested that those who became vegetarian because of animal concerns were more likely to answer that their initial impetus had been emotional. When health concerns were the beginning motivation, they were more likely to answer that they had used logic. (shrink)

The majority of midwives in the UK are employed within the NHS. They are legally bound to fulfil their contractual obligations to their employers. At the same time they are professionally mandated to interpret and act on the UKCC's Code of professional conduct. Midwives have always maintained that they are autonomous practitioners, and the Code is written in a way that endorses this belief. Underlying the Code is the assumption that midwives have moral and professional freedom to act on its (...) imperatives. However, midwives' claim to autonomy is flawed, and therefore the Code's claim to be a source of empowerment is also flawed. Underlying the difficulties is a conflict derived from the imposition of a deontologically-based professional Code on to a workforce that is constrained within and employed by the utilitarian-based NHS. (shrink)

L'examen du parcours personnel et littéraire d'Assia Djebar, femme, écrivain et algérienne, est l'axe de l'approche de Vera Lucia Soares. Pour analyser les différentes composantes de son objet d'étude Soares a recours à quelques-uns des théoriciens les plus renommés ­ Roger Chartier, Paul Ricoeur, Todorov, entre autres ­ et les utilise de façon magistrale pour disséquer l'oeuvre d'Assia Djebar, sous les angles les plus divers. Il faut aussi signaler la bibliographie spécialisée sur laq..

In the yeasts Saccharomyces cerevisiae and Schizosaccharomyces pombe, the initiation of DNA replication is controlled at a point called START. At this point, the cellular environment is assessed; only if conditions are appropriate do cells traverse START, thus becoming committed to initiate DNA replication and complete the remainder of the cell cycle. The cdc2+ / CDC28+ gene, encoding the protein kinase p34, is a key element in this complex control. The identification of structural and functional homologues of p34 suggests that (...) it has a role in the control of DNA replication in all eukaryotes. The WHI1+, CLN1+ and CLN2+ gene products, identified in S. cerevisiae, are positive regulators that function at START and may interact with p34. Determining how passing the START control point leads to the initiation of DNA replication is a major outstanding challenge in cell cycle studies. (shrink)

Traditional research into values has tended to dichotomise young people into categories of self and other orientations. In the present study values were explored within a contemporary context and analysed into more complex value sets. The sample comprised of 111 girls and 133 boys, aged 11-16, who responded to four open-ended sentences designed to tap philosophies of life, fears and underlying values. The pleasures in life for girls tended to centre on relationships with family, friends and boys, whereas boys enjoyed (...) activities such as sport. Many desired to win the National Lottery, although they also concurrently held humanistic values. The potential impact of these value sets on development during adolescence is discussed. For these young people, the best things in life are free but, like many adults, they dream of fame and fortune. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:ManifestsRachel Blau Duplessis (bio)O great classic cadences of English poetry We blush to hear thee lie Above thy deep and dreamless.—Denise Riley, Mop Mop GeorgetteThat tall white pasture clump that we call cow parsnip, Queen Anne’s lace magnified, are, in Latin, umbellifers, a flat-topped or rounded flower cluster. But sometimes people call them “umbrella flowers.” This work is closer to umbrella flowers than to umbellifers, down there on the (...) ground with bricolaged theorizing practices, folk etymologies, my poetry, and intransigent details. That was a tribute to the essay as woodsy ramble [Good xii and x].And to the essay as personal—a way of marking and mocking the professional codes and impersonal solemnities of the representation of thought. If saying “I” like a heroine will adequately undermine unsituated false universals, I’ll say “I” yes I will. “I” will report that in 1966 or so I diminished all the way down to a scant handful of one-line poems, and to gnomic statements, barely effective. The kind of development they needed was not rhetorical but historical.I, Lady, you are my true love’s lady. You stand in the middle of the room, Sunlight streaming around you. Sunlight takes hold of the seeds in you And wets them. I want to hold myself to you, But you are myself. Can I?This 1966 fragment issues directly from, and is a preternatural reminder of a passionate problematic—questions of gender, in relation to an engagement with poetry, poetry figured as a set of psychosocial and intellectual institutions imbuing a practice of writing in lines. This fragment knew and represented issues, points of political and cultural contradiction about the construction of authorship and the poetic career before their maker could see them as such. The fragment was a cognitive act, not just in autobiography. It functioned as a probe of a situation then almost invisible and always underacknowledged; to have understood it then, one would have needed the cultural apparatus precipitated (though not elaborated) by a social movement—second wave feminism, something that had not yet occurred.Despite mirroring each other in a dramatic hinged appositive, with Lady as hinge (“I, Lady, you”), the female “I” is separated by the very concept “Lady” from her addressee, one traditional addressee of poems, the female “you.” “Lady” is both hinge and barrier; she belongs to “my true love”—a charming and smug ballad turn, filled with idealizations of class and sexuality. Yet the “I” wants to hold this “you” figure to herself, actualizing in female-to-female attraction the long half-life of a Petrarchan structure of feeling in order to create female authorship. Now that gesture could be interpreted as desire (in a [End Page 31] lesbian, matrifocal, or preoedipal plot), or as self-aggrandizing forms of egoistic desire. Is the desired embrace regressive? immature? narcissistic? self-serving? greedy? masturbatory? (all these having been thought of as bad attitudes with a bad press—one might now wonder). Fueled by an ambisexual or polysexual suggestiveness, the poem makes a wobbly declaration of vocation in its desire to embrace singular, hieratic woman herself, yourself, myself. Yet as pronouns multiply, a serious problem is accosted. “But you are myself. Can I?”The fragment stops, startled, where the cultural problem began. Authorship was compromised and almost aborted; in any event, these issues, which seemed to me, in my (then commonplace) ignorance of female cultural production, to have no analogues, pointed me toward total blockage. The “can I” is not simply a personal questioning of my own powers, but concerns general contingencies of gender and female place in culture, a then invisible social horizon. Am “I” forbidden to poetry by one—but one key—law of poetry—the cult of the idealized female? Should “Lady” be ditched totally? or examined? both? and how to poke at a Petrarchanism that seems utterly belated, never uniformly hegemonic, and not, after all, the whole content of poetry? (As I bear down upon it, it recedes, is evasive.) Yet any number of writers do take “Lady” for granted as one of the institutional assumptions of poetry. Many male writers get to say Lady early and often... (shrink)

John Milton's political thought has been interpreted in strikingly divergent ways. This article argues that he should be seen as a classical republican, and locates key aspects of his political thought within an ancient Greek discourse critical of democracy or extreme democracy. Milton was clearly familiar with the ancient texts expounding this critique, and he himself deployed both the arguments and the characteristic discourse of the anti-democratic thinkers across the span of his writing. This vision of politics emphasized the rightly-ordered (...) soul of the masculine republican citizen, in contrast to the unruly passions seen both in tyrants and in the democratic rabble. (shrink)

O texto pretende mostrar o teatro trágico e sua relação com a pólis e com a Filosofia nascente no que respeita à imitação. Quando recortamos certo vocabulário usado pelos poetas arcaicos (épicos e líricos), é possível ver que os trágicos - porque descobriram o diálogo como forma para seus textos - criaram novos sentidos às mesmas palavras. Descobriram, também, as palavras para o pensamento jurídico/político nas cidades do V a.C., (como os pré-socráticos), ou seja, a força que podem ter os (...) pensamentos e sentenças argumentativas públicas na formação do ethos grego. (shrink)