To ensure their survival in natural habitats, plants must recognize and respond to a wide variety of insect herbivores. Aphids and other Hemiptera pose a particular challenge, because they cause relatively little direct tissue damage when inserting their slender stylets intercellularly to feed from the phloem sieve elements. Plant responses to this unusual feeding strategy almost certainly include recognition of aphid salivary components and the induction of phloem‐specific defenses. Due to the excellent genetic and genomic resources that are available for (...) Arabidopsis thaliana (Arabidopsis), this plant was chosen as a model system to study the metabolic and transcriptional responses to infestation by two aphids, Myzus persicae (green peach aphid, a broad generalist) and Brevicoryne brassicae (cabbage aphid, a crucifer‐feeding specialist). Future research on Arabidopsis–aphid interactions will lead to the identification of aphid‐specific elicitors, components of the defense‐signaling pathway, and additional metabolic responses that are induced by aphid infestation. BioEssays 29:871–883, 2007. © 2007 Wiley Periodicals, Inc. (shrink)

Cet article vise à mettre en lumière et contextualiser le regain d’intérêt international pour le socialiste allemand Eduard Bernstein, considéré comme le père du « réformisme » et de la révision du marxisme. Tout d’abord, il offre un rappel général du parcours de Bernstein, resté dans l’histoire politique pour le rôle qu’il tint dans la « querelle révisionniste » face à Kautsky et Rosa Luxembourg. Ensuite, l’article aborde les conditions historiques de résurgence de cette figure du socialisme, passant d’une méprise (...) originelle, entretenue par la polarisation politique du xx e siècle, à une redécouverte et une réhabilitation progressive. En un troisième temps, l’article explique la démarche de Bernstein face aux transformations économiques de la fin du xix e siècle et à l’attentisme de son parti, le SPD. Contre « l’attentisme révolutionnaire », Bernstein propose la voie d’un « socialisme démocratique », consistant en une démocratisation générale de la société, passant par des « réformes systématiques ». Ce « socialisme démocratique », « réformisme révolutionnaire », se conçoit comme une politique ambitieuse, fidèle à Marx, et n’abandonnant pas la volonté de dépassement du capitalisme. Enfin, l’article présente les publications les plus récentes à ce sujet (2018-2021). (shrink)

Christian Georg Martin offers an argumentative reconstruction of the whole work, reading it as a critical ontology, namely as the attempt to abstract from all presuppositions and to immanently unfold conceptual determinations characterizing ...

This paper constructs a model of metaphysical indeterminacy that can accommodate a kind of ‘deep’ worldly indeterminacy that arguably arises in quantum mechanics via the Kochen-Specker theorem, and that is incompatible with prominent theories of metaphysical indeterminacy such as that in Barnes and Williams (2011). We construct a variant of Barnes and Williams's theory that avoids this problem. Our version builds on situation semantics and uses incomplete, local situations rather than possible worlds to build a model. We evaluate the resulting (...) theory and contrast it with similar alternatives, concluding that our model successfully captures deep indeterminacy. (shrink)

The study “Psychoanalysis—its image and its public” intimates that common sense is increasingly informed by science. But common sense asserts its autonomy and, in turn, may affect the trajectory of science. This is a process that leads to many differentiations—in common sense, in scientific innovation and in political and regulatory structures. Bauer and Gaskell's toblerone model of triangles of mediation provided a distillation of their reading of “La Psychanalyse.” Here it was argued that representations are multi-modal phenomena necessitating the use (...) of multiple methodologies .In this paper we briefly summarise these arguments and elaborate ways in which social representation theory can be considered a progressive research programme. “Progressive” because as the theory has developed it has extended the range and depth of its conceptual basis; it provides a new synthesis for the social scientific understanding of the phenomena of common sense and of representation; it acts as an antidote to the reductionism of public opinion and, finally, it is a stimulus to depart from disciplinary silos. However, there remain unresolved issues: how to segment the relevant social milieus and how to close the feedback loop from common sense to science? (shrink)

Drawing from the lives of Ossie Davis, Frantz Fanon, Malcolm X, and W. E. B. Du Bois, as well as his own experience, and fully updated to account for what has transpired since the rise of the Black Lives Matter movement, Yancy provides an invaluable resource for students and teachers of courses in African American Studies, African American History, Philosophy of Race, and anyone else who wishes to examine what it means to be Black in America.

Based on Moscovici’s classical study on the cultivation of psychoanalytic ideas in France in the 1950’s and our own research on modern biotechnology, we propose a paradigm for researching social representations. Following a consideration of the nature of representations and of the ‘iconoclastic suspicion’ that haunts them, we propose a model of the emergence of meaning relating three elements: subjects, objects, and projects. The basic unit of analysis is the elongated triangle of mediation : subject 1, object, project, and subject (...) 2, captured in the image of a ‘Toblerone’. Such social units cultivate, that is produce, circulate and receive representation which may be embodied in four modes–habitual behaviour, individual cognition, informal communication and formal communication–and in three mediums–words, visual images or non-linguistic sounds. We propose an operational definition of a ‘social representation’ as the comparison of four characteristics of communication systems: the content structures , the typified processes , and their functions , within the context of segmented social milieus. Seven implications for research on social representations are outlined: content and process; segmentation by social milieus rather than taxonomies; cultivation studies within social milieus; multi-method analysis; time structures and longitudinal data; the crossover of cultural projects and trajectories; the disinterested research attitude. This ideal type paradigm leads to an operational clarification to identify new research questions, and to guide the design and evaluation of studies on social representations. (shrink)

Indeterminacy in its various forms has been the focus of a great deal of philosophical attention in recent years. Much of this discussion has focused on the status of vague predicates such as ‘tall’, ‘bald’, and ‘heap’. It is determinately the case that a seven-foot person is tall and that a five-foot person is not tall. However, it seems difficult to pick out any determinate height at which someone becomes tall. How best to account for this phenomenon is, of course, (...) a controversial matter. For example, some (such as Sorensen (2001) and Williamson (2002)) maintain that there is a precise height at which someone becomes tall and such apparent cases of indeterminacy merely reflects our ignorance of this fact. Others maintain that there is some genuine – and not merely epistemic – indeterminacy present is such cases and offer various accounts of how best to account for it. Supervaluationists (such as Keefe (2008)), for example, claim that the indeterminacy with respect to vague terms lies in their not having a single definite extension. Rather, each term is associated with a range of possible precise extensions or precisifications such that it is semantically unsettled which is the correct extension. One precisification of ‘tall’ might allow that anyone over five feet ten inches is tall, whereas another would only allow those over six foot to qualify; but no precisification will take someone who is five foot to be tall, and someone who is seven foot will count as tall on all precisifications. Thus – while someone who is seven foot will be determinately tall and someone who is five foot determinately not so – it will be indeterminate whether someone who stands at five foot eleven inches is tall. -/- Yet, it is important to stress that putative cases of indeterminacy are not limited to vague predicates of this kind. Philosophers have invoked indeterminacy in discussions of topics as diverse as moral responsibility (Bernstein (forthcoming)), identity over time (Williams (2014)), and the status of the future (Barnes and Cameron (2009)). In this paper, we focus on two areas where discussion of various kinds of indeterminacy has been commonplace: physics and fiction. We propose a new model for understanding indeterminacy across these domains and argue that it has some notable advantages when compared to earlier accounts. Treating physics and fiction cases univocally also indicates an interesting connection between indeterminacy in these two areas. (shrink)

The Christian Heritage delves into the history of the western Christian heritage. Challenges to the Christian heritage, a heritage nourished both by Judaism and by the western classics, have been stimulated by the very success of the way of life that is promoted, a way of life that is somehow responsible for the emergence of modern science with its revolutionary technology.

A collection of essays by German philosophers on the question of the dispensability or indispensability of language for human capacities of thought, perception, and agency.

This paper concerns metaphysical indeterminacy and, in particular, the issue of whether quantum mechanics gives motivation for thinking the world contains it. In a previous paper (Darby G, Pickup M. Synthese 198:1685–1710, 2021), we have offered one way to think about metaphysical indeterminacy which we take to avoid some issues arising from certain features of quantum mechanics (such as the Kochen-Specker theorem). This approach has recently been criticised by Corti (Synthese, forthcoming), and we take this opportunity to respond. Our paper (...) will therefore reply to Corti’s argument, but we also take it as a case study in ‘naturalistic metaphysics’ and hence to contribute to a more general discussion of the relationship between philosophy of science and analytic metaphysics. (shrink)

The American tradition of action theory failed to produce a useful theory of the possible existence of trans-individual consistencies in sexual desirability. Instead, most sociological theorists have relied on market metaphors to account for the logic of sexual action. Through a critical survey of sociological attempts to explain the social organization of sexual desiring, this article demonstrates that the market approach is inadequate, and that its inadequacies can be remedied by studying sexual action as occurring within a specifically sexual field (...) , with a correlative sexual capital. Such a conception allows for historical and comparative analysis of changes in the organization of sexual action that are impeded by the use of a market metaphor, and also points to difficulties in Bourdieu's own treatment of the body qua body. (shrink)

The U.S. Food and Drug Administration's rationale for supporting the development and approval of BiDil for heart failure specifically in black patients was based on under-powered, post hoc subgroup analyses of two relatively old trials , which were further complicated by substantial covariate imbalances between racial groups. Indeed, the only statistically significant difference observed between black and white patients was found without any adjustment for potential confounders in samples that were unlikely to have been adequately randomized. Meanwhile, because the accepted (...) baseline therapy for heart failure has substantially improved since these trials took place, their results cannot be combined with data from the more recent trial amongst black patients alone. There is therefore little scientific evidence to support the approval of BiDil only for use in black patients, and the FDA's rationale fails to consider the ethical consequences of recognizing racial categories as valid markers of innate biological difference, and permitting the development of group-specific therapies that are subject to commercial incentives rather than scientific evidence or therapeutic imperatives. This paper reviews the limitations in the scientific evidence used to support the approval of BiDil only for use in black patients; calls for further analysis of the V-HeFT I and II data which might clarify whether responses to H-I vary by race; and evaluates the consequences of commercial incentives to develop racialized medicines. We recommend that the FDA revise the procedures they use to examine applications for race-based therapies to ensure that these are based on robust scientific claims and do not undermine the aims of the 1992 Revitalization Act. (shrink)

In the present paper we empirically investigate the psychometric properties of some of the most famous statistical and logical cognitive illusions from the “heuristics and biases” research program by Daniel Kahneman and Amos Tversky, who nearly 50 years ago introduced fascinating brain teasers such as the famous Linda problem, the Wason card selection task, and so-called Bayesian reasoning problems (e.g., the mammography task). In the meantime, a great number of articles has been published that empirically examine single cognitive illusions, theoretically (...) explaining people’s faulty thinking, or proposing and experimentally implementing measures to foster insight and to make these problems accessible to the human mind. Yet these problems have thus far usually been empirically analyzed on an individual-item level only (e.g., by experimentally comparing participants’ performance on various versions of one of these problems). In this paper, by contrast, we examine these illusions as a group and look at the ability to solve them as a psychological construct. Based on an sample ofN= 2,643 Luxembourgian school students of age 16–18 we investigate the internal psychometric structure of these illusions (i.e., Are they substantially correlated? Do they form a reflexive or a formative construct?), their connection to related constructs (e.g., Are they distinguishable from intelligence or mathematical competence in a confirmatory factor analysis?), and the question of which of a person’s abilities can predict the correct solution of these brain teasers (by means of a regression analysis). (shrink)

Den Menschen zu verstehen ist das zentrale Anliegen des Theologen, Philosophen und Psychologen Helmut Dorra – sowohl in der Lehre als auch in der existenzanalytischen, logotherapeutischen Praxis. Die Autor:innen dieser Festschrift beleuchten anlässlich seines siebzigsten Geburtstags wesentliche Thematiken seines Ansatzes und laden zum Kennenlernen sowohl der Person Helmut Dorra als auch des existenziellen Denkens ein. Vom mutigen Handeln im richtigen Augenblick über den Zwiespalt zwischen Sein und Sollen bis zur Trauer als existenziellem Prozess werden grundlegende Themen wie Dialog, Freiheit, Konflikt, (...) Person, Resonanz oder Solidarität theoretisch betrachtet und für die beratende und therapeutische Praxis nutzbar gemacht. Mit Beiträgen von Emmanuel J. Bauer, Helmut Dorra, Rahel Dorra, Daniela von Heyl, Elisabeth Kohrt, Christoph Kolbe, Georg Martensen, René Märtin, Mariola Niedzielska-Wagener, Daniel Rumel, Stefan Wagener und Julia Werner. (shrink)

This volume deals with the connection between thinking-and-speaking and our form of life. All contributions engage with Wittgenstein’s approach to this topic. As a whole, the volume takes a stance against both biological and ethnological interpretations of the notion "form of life" and seeks to promote a broadly logico-linguistic understanding instead. The structure of this book is threefold. Part one focuses on lines of thinking that lead from Wittgenstein’s earlier thought to the concept of form of life in his later (...) work. Contributions to part two examine the concrete philosophical function of this notion as well as the ways in which it differs from cognate concepts. Contributions to part three put Wittgenstein’s notion of form of life in perspective by relating it to phenomenology, ordinary language philosophy and problems in contemporary analytic philosophy. (shrink)

The detection and categorization of animate motions is a crucial task underlying social interaction and perceptual decision making. Neural representations of perceived animate objects are partially located in the primate cortical region STS, which is a region that receives convergent input from intermediate-level form and motion representations. Populations of STS cells exist which are selectively responsive to specific animated motion sequences, such as walkers. It is still unclear how and to what extent form and motion information contribute to the generation (...) of such representations and what kind of mechanisms are involved in the learning processes. The article develops a cortical model architecture for the unsupervised learning of animated motion sequence representations. We demonstrate how the model automatically selects significant motion patterns as well as meaningful static form prototypes characterized by a high degree of articulation. Such key poses are selectively reinforced during learning through a cross talk between the motion and form processing streams. Furthermore, we show how sequence-selective representations are learned in STS by fusing static form and motion input from the segregated bottom-up driving input streams. Cells in STS, in turn, feed their activities recurrently to their input sites along top-down signal pathways. We show how such learned feedback connections enable predictions about future input as anticipation generated by sequence-selective STS cells. Network simulations demonstrate the computational capacity of the proposed model by reproducing several experimental findings from neurosciences and by accounting for recent behavioral data. (shrink)

Sustainability problems often seem intractable. One reason for this is due to difficulties coordinating actors’ efforts to address socially responsible outcomes. Drawing on theories of bounded ethicality and incorporating work on communicating shared values in coordinating action this paper outlines the lack coordination as a matching issue, one complicated by underlying heterogeneity in actors’ moral values and thus motivation to address socially responsible outcomes. Three factors contribute to this matching problem. First, we argue it is not actors’ simple cognitive awareness, (...) but their moral awareness of social issues that explains why certain actors move to address problems while others do not. In other words, actors may recognize sustainability problems, but are not motivated to solve them as they are not understood as moral problems. Second, we posit that progress requires alignment in issues that some actors find worth addressing whereas others do not, thus explaining how heterogeneity in moral perceptions interrupt coordination towards socially important goals. Finally, we propose that progress is undermined if actors myopically focus on level-specific outcomes in ways that elucidates why institutional responses often fail to address individual outcomes and vice versa. We use the existing literature on the socially important issue of food waste to examine our theoretical contribution and develop a typology that explains conditions that inhibit coordination. Thus, our work proposes a psycho-structural view on matching and coordination toward sustainable outcomes, highlighting how psychological and structural constraints prevent effective coordination in addressing sustainability goals. (shrink)

The task of this paper is to exhibit Wittgenstein’s method of perspicuous presentation as aiming at a distinctive kind of self-knowledge. Three influential readings of Wittgenstein’s concept of perspicuous presentation – Hacker’s, Baker’s and Sluga’s – are examined. All of them present what Wittgenstein calls the “unsurveyablity of our grammar” as a result of the “complexity” of our language. Contrary to this, a fundamental difference between matter-of-factual complexity and the unsurveyability of grammar is pointed out. What perspicuous presentations are designed (...) to deal with, isn’t, accordingly, occasioned by the complexity of our language but by an unnoticed assimilation of our own activities as speaking beings to matter-of-factual affairs. In response to this, perspicuous presentations help us to fully appropriate our activities as speakers in virtue of achieving a transparent understanding of the use of “our words”. It thus provides us with a distinctive kind of grammatical self-knowledge. (shrink)

This volume is a collection of essays by various contributors in honor of the late Laurence Berns, Richard Hammond Elliot Tutor Emeritus at St. John's College, Annapolis. The essays address the literary, political, theological, and philosophical themes of his life's work as a scholar, teacher, and constant companion of the "great books.".