Approximately three decades ago the question was first answered whether parasitoids are able to assess the number or origin of eggs in a host for a solitary parasitoid, Leptopilina heterotoma, by fitting theoretically derived distributions to empirical ones. We extend the set of different theoretically postulated distributions of eggs among hosts by combining searching modes and abilities in assessing host quality. In the models, parasitoids search either randomly (Poisson) (1) or by vibrotaxis (Negative Binomial) (2). Parasitoids are: (a) assumed to (...) treat all hosts equally, (b) able to distinguish them in unparasitised and parasitised hosts only, (c) able to distinguish them by the number of eggs they contained, or (d) able to recognise their own eggs. Mathematically tractable combinations of searching mode (1 and 2) and abilities (a,b,c,d) result in seven different models (M1a, M1b, M1c, M1d, M2a, M2b and M2c). These models have been simulated for a varying number of searching parasitoids and various mean numbers of eggs per host. Each resulting distribution is fitted to all theoretical models. The model with the minimum Akaike's information criterion (AIC) is chosen as the best fitting for each simulated distribution. We thus investigate the power of the AIC and for each distribution with a specified mean number of eggs per host we derive a frequency distribution for classification.Firstly, we discuss the simulations of models including random search (M1a, M1b, M1c and M1d). For M1a, M1c and M1d the simulated distributions are correctly classified in at least 70% of all cases. However, in a few cases model M1b is only properly classified for intermediate mean values of eggs per host. The models including vibrotaxis as searching behaviour (M2a, M2b and M2c) cannot be distinguished from those with random search if the mean number of eggs per host is low. Among the models incorporating vibrotaxis the three abilities are detected analogously as in models with random search. (shrink)

Theory and history combine in this book to form a coherent narrative of the debates on language and languages in the Western world, from ancient classic philosophy to the present, with a final glance at on-going discussions on language as a cognitive tool, on its bodily roots and philogenetic role.An introductory chapter reviews the epistemological areas that converge into, or contribute to, language philosophy, and discusses their methods, relations, and goals. In this context, the status of language philosophy is discussed (...) in its relation to the sciences and the arts of language. Each chapter is followed by a list of suggested readings that refer the reader to the final bibliography."About the author" Lia Formigari, Professor Emeritus at University of Rome, La Sapienza. Her publications include: "Language and Experience in XVIIth-century British Philosophy." Amsterdam & Philadelphia: J. Benjamins, 1988; "Signs, Science and Politics. Philosophies of Language in Europe 1700 1830." Amsterdam & Philadelphia: J. Benjamins, 1993; "La semiotique empiriste face au kantisme." Liege: Mardaga, 1994. (shrink)

Ce texte propose une justification de la critique que Spinoza adresse à Descartes, par l’intermédiaire de Louis Meyer, dans la Préface des Principes de la Philosophie de Descartes ; plus particulièrement, il s’agit de reconstruire ses raisons pour affirmer qu’il n’a pas été prouvé, dans la Seconde Méditation, que la chose qui est désignée par le terme ‘je’ puisse être une substance. L’argument qui doit soutenir cette affirma- tion peut être schématisé de la façon suivante : Descartes ne peut introduire (...) un indice temporel dans la certitude de la proposition Je suis, j’existe que s’il accepte que la compréhension de cette proposition enveloppe la possibilité de l’existence d’autres choses pensantes finies, ce qui contredit l’unes des conditions de la conception d’une chose comme substance, telles que lui-même les a définies dans l’article 60 de la première partie des Principes de la Philosophie. (shrink)

A tono con esta afortunada relevancia de las mujeres (hay un gran estallido en todo el mundo del arte y la literatura de magníficas calidades, hechos por mujeres), vienen aquí cinco artistas argentinas: Carla Rey, Silvana Blasbalg, Romina Linder, Gabriela Juárez y Ana Lía Werthein, de entre muchas otras artistas plásticas que pertenecen al colectivo Instantes Gráficos, presidido y fundado en la ciudadbonaerense desde 1999 por la también artista Carla Rey.

For more than a century, Harlem has been the epicenter of black America, the celebrated heart of African American life and culture—but it has also been a byword for the problems that have long plagued inner-city neighborhoods: poverty, crime, violence, disinvestment, and decay. Photographer Camilo José Vergara has been chronicling the neighborhood for forty-three years, and Harlem: The Unmaking of a Ghetto is an unprecedented record of urban change. Vergara began his documentation of Harlem in the tradition of such masters (...) as Helen Levitt and Aaron Siskind, and he later turned his focus on the neighborhood’s urban fabric, both the buildings that compose it and the life and culture embedded in them. By repeatedly returning to the same locations over the course of decades, Vergara is able to show us a community that is constantly changing—some areas declining, as longtime businesses give way to empty storefronts, graffiti, and garbage, while other areas gentrify, with corporate chain stores coming in to compete with the mom-and-pops. He also captures the ever-present street life of this densely populated neighborhood, from stoop gatherings to graffiti murals memorializing dead rappers to impersonators honoring Michael Jackson in front of the Apollo, as well as the growth of tourism and racial integration. Woven throughout the images is Vergara’s own account of his project and his experience of living and working in Harlem. Taken together, his unforgettable words and images tell the story of how Harlem and its residents navigated the segregation, dereliction and slow recovery of the closing years of the twentieth century and the boom and racial integration of the twenty-first century. A deeply personal investigation, Harlem will take its place with the best portrayals of urban life. (shrink)

Since its introduction in the 1980s, futility as a concept has held contested meaning and applications throughout medicine. There has been little discussion within the psychiatric literature about the use of futility in the care of individuals experiencing severe and persistent mental illness (SPMI), despite some tacit acceptance that futility may apply in certain cases of psychiatric illness. In this paper, we explore the literature surrounding futility and argue that its connotation within medicine is to describe situations where patients (or (...) their substitute decision-makers) believe that interventions will almost certainly provide no meaningful benefit. We then provide two arguments in support of the use of futility within the care of individuals experiencing SPMI: that some SPMI can be considered a terminal illness, and that the risk-benefit ratio is a dynamic entity such that futility can help describe what Gillett calls the ‘risk of unacceptable badness’ when it comes to considering how an intervention might impact a patient’s quality of life. We posit that capacity should not pose an obstacle to declaring futility when caring for individuals experiencing SPMI and explain how futility is not antithetical to recovery in mental health. Finally, we describe how using futility within psychiatric practice can allow for a reorientation of care by signalling the need to shift to a palliative approach. (shrink)

17 essays discussing the role of language in the history of western thought. Since Adam before the Fall named the animals by true insight into their essences, language has never ceased to be the pivot of efforts to understand human nature and our capacity to feel at home in the twin worlds of nature and society. This volume brings together seventeen essays that have appeared in the Journal of the History of Ideasover the last thirty years. Their common theme is (...) the role of language in aspects of the history of western thought from the Renaissance to the nineteenth century. The essays cover questions in epistemology, religion, anthropology, lexicography, evolution, the theory of signs, and the origin of language. Contributors: FRANK L. BORCHARDT, MARGRETA DE GRAZIA, SIDONIE CLAUSS, JAN MIEL, THOMAS C.SINGER, VICTOR ANTHONY RUDOWSKI, JULES PAUL SEIGEL, JAMES McLAVERTY, J.R. KNOWLSON, STEPHEN K. LAND, LIA FORMIGARI, H.J. JACKSON, W. JAY REEDY, V.P. BYNACK, CYMBRE QUINCYRAUB, MICHAEL SPRINKER, S. MORRIS ENGEL. (shrink)

With the rapid development of genetic research and applications in health care there is some agreement among funding and regulatory bodies that the public(s) need to be equipped to deal with the choices that the new technologies will offer them, although this does not necessarily include a role for the public in influencing their development and regulation. This paper considers the methods and purpose of public consultations in the area of genetics including large-scale surveys of opinion, consensus conferences and focus (...) groups. Consultation has been undertaken to enable the researchers/policy makers to see what the public do not know and plan more public education to make up the deficiency, to check on areas of concern so that public education can be used to address them or to gain a public mandate for a planned policy. An alternative and more recent approach is to find out what the public(s) do know and understand and to see how experts can learn from them in order to get a fuller view of technology in use. (shrink)

Biobanks that are run on an opt-in basis depend on people having the motivation to give and to trust in those who control their samples. Yet in the UK trust in the healthcare system has been in decline and there have been a number of health-related scandals that have received widespread media and public attention. Given this background, and the previous public consultations on UK Biobank, the paper explores the way people express their trust and mistrust in the area of (...) medical and genetic information through discussions in six focus groups held in different areas of Britain. The themes that emerged in the discussion were the special character of genetic data; the ease with which information spreads; the public/private divide in genetic research; the potential of genetic information to harm people; choice, consent and lack of control; and the difficulty of establishing trustworthy governing arrangements. The expert agenda of policy-makers and medical ethics does not address the broader concerns expressed by participants. It seems that public consultation and the language of openness and transparency may not be sufficient to establish trust in the governance of genetic databases. Donors will be asked to give freely without any return but the participants' perception of those using the samples is that they are motivated by success and profit rather than healthcare priorities. In this context altruism seems naive and even dangerous. In order to place their trust well people need evidence of a relationship with obligations and expectations on both sides. (shrink)

Objectives—The development of predictive genetic tests provides a new area where consumers can gain knowledge of their health status and commercial opportunities. “Over-the-counter” or mail order genetic tests are most likely to provide information on carrier status or the risk of developing a multifactorial disease. The paper considers the social and ethical implications of individuals purchasing genetic tests and whether genetic information is different from other types of health information which individuals can obtain for themselves.Design—The discussion is illustrated by findings (...) from a questionnaire survey of university students as potential consumers. Topics covered included what health tests they had already used, expectations of genetic tests, willingness to pay, who should have access to the results and whether there need to be restrictions on such tests.Sample—Six hundred and fifteen first-year students in the universities of Leuven, Cardiff, Central Lancashire, Vienna and Nijmegen studying either medicine or a non-science subject.Results—Students were enthusiastic about genetic tests and had high expectations of their accuracy and usefulness but most thought they should be available through the health service and a minority thought that some tests, for example for sex selection, should not be available at all. There were few differences in responses by sex or subject of study but some by country. The paper also considers ethical and social issues outside the scope of a questionnaire survey of this type.Conclusion—To address some of these issues the sale of genetic tests to individuals can be made subject to ethical guidelines or codes of practice, for example to protect vulnerable groups, but there are fundamental social and ethical questions which such guidelines cannot address. (shrink)

The idea of individual responsibility for action is central to our conception of what it is to be a person. Behavioural genetic research may seem to call into question the idea of individual responsibility with possible implications for the criminal justice system. These implications will depend on the understandings of the various agencies and professional groups involved in responding to violent and anti-social behaviour, and, the result of negotiations between them over resulting practice. The paper considers two kinds of approaches (...) to the question of responsibility and ‘criminal genes’ arising from a sociological and philosophical perspective respectively. One is to consider the social context and possible practical implications of research into ‘criminal genes’ which will later be examined through interviews and discussions with a range of experts including lawyers and social workers. A second and different kind of approach is to ask whether the findings of behavioural genetics ought to have implications for attributions of responsibility. Issues of genetic influence are central to both approaches. (shrink)

Objectives—The development of predictive genetic tests provides a new area where consumers can gain knowledge of their health status and commercial opportunities. “Over-the-counter” or mail order genetic tests are most likely to provide information on carrier status or the risk of developing a multifactorial disease. The paper considers the social and ethical implications of individuals purchasing genetic tests and whether genetic information is different from other types of health information which individuals can obtain for themselves.Design—The discussion is illustrated by findings (...) from a questionnaire survey of university students as potential consumers. Topics covered included what health tests they had already used, expectations of genetic tests, willingness to pay, who should have access to the results and whether there need to be restrictions on such tests.Sample—Six hundred and fifteen first-year students in the universities of Leuven, Cardiff, Central Lancashire, Vienna and Nijmegen studying either medicine or a non-science subject.Results—Students were enthusiastic about genetic tests and had high expectations of their accuracy and usefulness but most thought they should be available through the health service and a minority thought that some tests, for example for sex selection, should not be available at all. There were few differences in responses by sex or subject of study but some by country. The paper also considers ethical and social issues outside the scope of a questionnaire survey of this type.Conclusion—To address some of these issues the sale of genetic tests to individuals can be made subject to ethical guidelines or codes of practice, for example to protect vulnerable groups, but there are fundamental social and ethical questions which such guidelines cannot address. (shrink)

A professor of mathematics offers an analysis of the roles science plays within American society, providing suggestions for a more effective interchange between scientists and key United States institutions.

Introduction: This article discusses ethical, legal and social issues raised by the collection, storage and use of DNA in forensic databases. Review: The largest and most inclusive forensic database in the world, the UK National DNA database, leads the worldwide trend towards greater inclusivity. The performance of the NDNAD, criteria for inclusion, legislative framework and plans for integrating forensic databases across Europe are discussed. Comparisons are drawn with UK biobank that has started collecting DNA samples linked to medical records and, (...) unlike the NDNAD, requires informed consent from volunteers, allows withdrawal of samples and only includes adults. The potential uses of research into genes associated with violent and ‘antisocial’ behaviour are discussed in the context of an increasing degree of surveillance in the UK. Conclusion: It should not be assumed that the benefits of forensic databases will necessarily override the social and ethical costs, regardless of changes to the criteria for inclusion or the permitted uses of samples and profiles. The expansion of forensic databases raises issues of relevance to the medical profession. (shrink)

The organ shortage is commonly presented as having a clear solution, increase the number of organs donated and the problem will be solved. In the light of the Northern Ireland Assembly’s consultation on moving to an opt-out organ donor register this article focusses on the social factors and complexities which impact strongly on both the supply of, and demand for, transplantable organs. Judging by the experience of other countries presumed consent systems may or may not increase donations but have not (...) met demand. Donation rates have risen considerably in all parts of the UK recently but there is also an increasing demand for organs. Looking at international donation rates and attitudes, future demand for organs and education on donation, the question is whether the organ shortage could ever be met. The increase in longevity, in rates of diabetes and obesity and in alcohol related liver disease all contribute both to increased demand for transplants, and re-transplants, and a reduction in the number of usable organs. It is unlikely that demand could ever be met, since, if supply was unlimited, the focus would move to financial resources and competing demands on the health care budget in a publicly funded health system. These factors point to the need to focus on ways of reducing, or at least stabilizing, demand where lifestyle factors contribute to the underlying disease. (shrink)

"Evidence of a flight from reason is as old as human record-keeping: the fact of it certainly goes back an even longer way. Flight from science specifically, among the forms of rational inquiry, goes back as far as science itself... But rejection of reason is now a pattern to be found in most branches of scholarship and in all the learned professions."--from the introduction In the widely acclaimed Higher Superstition: The Academic Left and Its Quarrels with Science, Paul R. Gross (...) and Norman Levitt offered a spirited response to the "science bashers," raising serious questions about the growing criticism of scientific practice from humanists and social scientists on the academic left. Now, in The Flight from Science and Reason, Gross and Levitt are joined by Martin W. Lewis to bring together a diverse and distinguished group of scholars, scientists, and experts to engage these questions from a wide variety of perspectives. The authors take on critics of science whose views range from moderate to extreme, from social constructivists to deconstructionists, from creationists and feminists to Afro-centrists. They discuss the rise of "alternative medicine" and radical environmentalism (here skewered as "ecosentimentalism"). They explain why the "uncertainty principle" does not work as a metaphor for ambiguity, and why "chaos theory" cannot be invoked without an understanding of mathematics. Throughout, they grapple with the paradox inherent in arguing with opponents who contend that reason itself, and thus logic, is suspect. Distributed for the New York Academy of Sciences. (shrink)

The essays contained in Beyond the Juxtaposition of Nature and Culture represent an attempt by scholars from Canada, Germany, and Mexico to come to grips with the innovative work of the American philosopher and anthropologist Lawrence Krader who has proposed nothing less than a new theory of nature, according to which there are at least three different orders--the material-biotic, the quantum, and the human--which differ from one another according to their different configurations of space-time, and which cannot be reduced the (...) one to the others. Each author takes up Krader's theory in relation to its impact on their own discipline: sociology, anthropology, the study of myth, the theory of labor and value, economics, linguistics, and aesthetics. The question of how nature and culture can be integrated within a theoretical framework which links them in difference and nexus and allows each their non-reductive space leads each of the contributors to move in their thinking beyond the old dualisms of materialism and idealism, fact and value, nature and culture. (shrink)

Ethical issues surrounding research are complex and multifaceted. There are issues concerning: the methods used, the intended purpose, the foreseen and unforeseen effects, the use and dissemination of findings, and, not least, what is and what fails to be researched. - In this article we break down the issues into two main categories: (I) how the research itself is done; and (II) how it is determined by and in turn affects a wider context. In the first section we discuss familiar (...) issues such as the need for methodologically sound investigation, appropriate protections for the human subjects of research, as well as issues arising in collaborative research. The second set of issues is less well investigated and, indeed, particularly difficult to address; these are issues that extend well beyond the control of the researcher(s) or, quite often, any one individual or organization. We discuss the selection of research topics, research funding, publication and, finally, the role of external ethical guidelines and their institutional setting. (shrink)

To engender the Jewish past is to continue to question how and what we think we already know about Jewish history and Jewish memory. In order to imagine other stories, we must risk engaging in other ways of doing Jewish study. Only by repeatedly engaging in these other practices can we begin to undo the assumptions about gender we have come to assume as normal or natural. This paper explores first, what it means to engender the Jewish past and then (...) what a contemporary Jewish Studies informed by feminism looks like. (shrink)

Based on Foucault's discourse on freedom and empowerment, this article addresses his understanding of power and knowledge. By critically examining the negative impact of the No Child Left Behind Act of 2001 on education, the author discusses the transformative power of Foucault's pedagogy for educational reform in which students, teachers, parents, and scholars are agents of change.