— We prescnt here a comparative study on the decay of chlorophyll a fluorescence yield in thylakoid membranes and photosystem 11 ‐enriched samples, measured with multifrequency cross‐correlation phase fluorometry. These measurements confirm the general conclusions of Van Mieghem ef al., obtained with a flash method, on the effects of reduction of the primary quinone acceptor on ChI a fluorescence yield of PSI. Different states of the reaction centers of PSII were produced by: pretreatment with sodium dithionite and mcthyl viologen followed (...) by laser illumination: the doubly reduced QA centers: with laser illumination or pretreatment with diuron: QA‐ centers; and the addition of micromolar concentration of dichlorobenzoquinonc : oxidized QA centers. The data were analyzed with Lorentzian distribution as well as with multiexponential fluorescence decay functions. The analysis with Lorcntzian distribution function showed that upon formation of QA. the major lifetime distribution peak shifted to longer lifetimes: from 0.25 ns to 1.66 ns and from 0.24 ns to 1.31 ns. However, when QAHZ was formed, the lifetime distribution peaks shifted back to shorter lifetimes both in thylakoids and PSIl membranes. Multiexponential analysis showed three lifetime components: fast, middle and slow. When QA was formed in PS11 centers, the amplitude of the fast Component decreased, but both thc amplitude and the lifetime of the middle component increased severalfold. However, when QA was doubly reduccd, the amplitude of the fast component increased and the amplitude of the middle component decreased: in addition, the lifetime of the slow component increased. All of the above results are consistent with the conclusions that PS11 charge separation is decreased when QA is formed and increased when doubly reduced QA is formed. Copyright © 1993, Wiley Blackwell. All rights reserved. (shrink)

At the time of his death in 1984, Foucault’s late career forays into Stoicism and other sets of ancient texts were often little understood, except as part of a larger project on the history of sexuality. Indeed, outside of France and outside of an incipient queer theory, Foucault was often taken up in terms of debates over post-structuralism and postmodernism—themes all but absent from his writings. More than thirty years later, after the publication of all of his lecture courses at (...) the Collège de France from 1970-1984 as well as his collected writings, we have gained a better understanding of the deep continuities in his set of concerns from Histoire de la folie à l’âge classique to the third volume of his history of sexuality series, Le Souci de soi. Yet many Foucault scholars continue to see momentous shifts in his writings, e.g., from knowledge to power to ethics, and the almost bewildering range of texts he covered in the years after finishing the first volume of his history of sexuality series, La Volonté de savoir, lead to very different interpretations concerning what Foucault was attempting to do and how much his rendering of ancient texts differed from his own claims. Stuart Elden’s Foucault’s Last Decade steps into this breach, using archival work to fill in many of the details of this period, from when and on what Foucault was lecturing to listing those with him in that amusing late photo of a beaming Foucault in an ill-fitting cowboy hat. The publication of Elden’s book marks a good time to assess this often misunderstood period in Foucault’s work, and we have gathered Stuart Elden and two more of Foucault’s best interpreters, Eduardo Mendieta and Dianna Taylor, to do so. (shrink)

(2006). A ‘Retro‐version’ of Power: Agamben via Foucault on Sovereignty. Critical Review of International Social and Political Philosophy: Vol. 9, No. 3, pp. 445-459.

Molecular interactions are at the origin of life. How molecules get at different locations in the cell and how they locate their partners is a major and partially unresolved question in biology that is paramount to signaling. Spatio‐temporal correlations of fluctuating fluorescently tagged molecules reveal how they move, interact, and bind in the different cellular compartments. Methods based on fluctuations represent a remarkable technical advancement in biological imaging. Here we discuss image analysis methods based on spatial and temporal correlation of (...) fluctuations, raster image correlation spectroscopy, number and brightness, and spatial cross‐correlations that give us information about how individual molecules move in cells and interact with partners at the single molecule level. These methods can be implemented with a standard laser scanning microscope and produce a cellular level spatio‐temporal map of molecular interactions. (shrink)

Cet article fait le point sur la notion très polysémique de « parentalité ». Il part d’une définition tridimensionnelle de la parentalité (exercice, pratique et expérience) avancée en 1998 par Didier Houzel, car c’est un moment charnière dans la société française. Avant, dans les années 1970-1980, l’introduction de ce terme par la psychologie clinique (avec celui de « dysparentalité » de René Clément) signe une nouvelle considération de la place des parents par les professionnels, notamment ceux de la protection de (...) l’enfance. Parallèlement, à partir des années 1970, le terme de « monoparentalité » apparaît en sociologie et il s’est divulgué depuis, dans les années 1990, pour amorcer toutes les déclinaisons ultérieures de la « pluriparentalité » traduisant ainsi l’évolution de la famille avec les distinctions du biologique, du domestique et du social (Irène Théry). Depuis, les relations entre les parents, la coparentalité, l’identité même du parent et les enjeux de la parenté donnent lieu à des développements pluridisciplinaires qui devraient se préciser pour limiter l’emploi inflationniste de ce terme. (shrink)

Cet article fait le point sur la notion très polysémique de « parentalité ». Il part d’une définition tridimensionnelle de la parentalité (exercice, pratique et expérience) avancée en 1998 par Didier Houzel, car c’est un moment charnière dans la société française. Avant, dans les années 1970-1980, l’introduction de ce terme par la psychologie clinique (avec celui de « dysparentalité » de René Clément) signe une nouvelle considération de la place des parents par les professionnels, notamment ceux de la protection de (...) l’enfance. Parallèlement, à partir des années 1970, le terme de « monoparentalité » apparaît en sociologie et il s’est divulgué depuis, dans les années 1990, pour amorcer toutes les déclinaisons ultérieures de la « pluriparentalité » traduisant ainsi l’évolution de la famille avec les distinctions du biologique, du domestique et du social (Irène Théry). Depuis, les relations entre les parents, la coparentalité, l’identité même du parent et les enjeux de la parenté donnent lieu à des développements pluridisciplinaires qui devraient se préciser pour limiter l’emploi inflationniste de ce terme. (shrink)

The first dictionary dedicated to the work of Jean-Luc Nancy.Jean-Luc Nancy is a key figure in the contemporary intellectual landscape. This dictionary will, for the first time, consider the full scope of his writing and will provide insights into the philosophical and theoretical background to his focus on community and aesthetics.Drawing on an internationally recognised expertise of a multidisciplinary team of contributors, the 70 entries explain all of his main concepts, contextualising these within his work as a whole and relating (...) him to his contemporaries. It will appeal to students and scholars alike.Key Features:* comprehensive definitions which are contextualised* fully cross-referenced throughout* extensive list of secondary readingKeywords: politics, democracy, freedom, morality, aesthetics. (shrink)

Problems and Prospects Peter Gratton. uncoveredness of entities that serves as the basis for a true assertion is dependent upon dasein's understanding of being, which lets these entities manifest themselves. hence, as heidegger will say, ...

Infinite regress arguments are part of a philosopher's tool kit of argumentation. But how sharp or strong is this tool? How effectively is it used? The typical presentation of infinite regress arguments throughout history is so succinct and has so many gaps that it is often unclear how an infinite regress is derived, and why an infinite regress is logically problematic, and as a result, it is often difficult to evaluate infinite regress arguments. These consequences of our customary way of (...) using this tool indicate that there is a need for a theory to re-orient our practice. My general approach to contribute to such a theory, consists of collecting and evaluating as many infinite regress arguments as possible, comparing and contrasting many of the formal and non-formal properties, looking for recurring patterns, and identifying the properties that appeared essential to those patterns. Two very general questions guided this work: How are infinite regresses generated in infinite regress arguments? How do infinite regresses logically function as premises in an argument? In answering these questions I clarify the notion of an infinite regress; identify different logical forms of infinite regresses; describe different kinds of infinite regress arguments; distinguish the rhetoric from the logic in infinite regress arguments; and suggest ways of improving our discussion and our practice of constructing and evaluating these arguments. (shrink)

I describe the general structure of most infinite regress arguments; introduce some basic vocabulary; present a working hypothesis of the nature and derivation of an infinite regress; apply this working hypothesis to various infinite regress arguments to explain why they fail to entail an infinite regress; describe a common mistake in attempting to derive certain infinite regresses; and examine how infinite regresses function as a premise.

This paper discusses some of the ways in which circular definitions and circular explanations entail or fail to entail infinite regresses. And since not all infinite regresses are vicious, a few criteria of viciousness are examined in order to determine when the entailment of a regress refutes a circular definition or a circular explanation.

Much has been written about biopolitical sovereignty in the wake of Agamben's work, which relies, at least in the first volume of Homo Sacer, on Carl Schmitt's transcendental account of sovereignty. This article argues, however, that Foucault and Arendt rightly identify what Derrida once called the “changing shape and place of sovereignty” in modernity, which for them is horizontal and disseminated within a presupposed nation. For this reason, we will look to the source of modern philosophical immanentism, Spinoza, to show (...) that he is not extrinsic to this modern biopolitics, and demonstrates how the sovereign exception and its nationalized version work hand-in-glove in the era of which he was a part – and thus is part of all thinking that would take this to form a new communitas. In this way, we argue that it is Spinoza's political theology, not Schmitt's, that is the better pass-key to what Foucault and Arendt identify as biopolitical. By doing so, we put in tension two trends in recent Continental philosophy: philosophical vitalism and the critique of biopolitics at the heart at any contemporary thinking of community. (shrink)

Hannah Arendt's (1906-1975) writings, both in public magazines and in her important books, are still widely studied today. She made original contributions in political thinking that still astound readers and critics alike. The subject of several films and numerous books, colloquia, and newspaper articles, Arendt remains a touchstone in innumerable debates about the use of violence in politics, the responsibility one has under dictatorships and totalitarianism, and how to combat the repetition of the horrors of the past. The Bloomsbury Companion (...) to Arendt offers the definitive guide to her writings and ideas, her influences and commentators, as well as the reasons for her lasting significance, with 66 original essays taking up in accessible terms the myriad ways in which one can take up her work and her continuing importance. These essays, written by an international set of her best readers and commentators, provides a comprehensive coverage of her life and the contexts in which her works were written. Special sections take up chapters on each of her key writings, the reception of her work, and key ways she interpreted those who influenced her. If one has come to Arendt from one of her essays on freedom, or from yet another bombastic account of her writings on Adolph Eichmann, or as as student or professor working in the field of Arendt studies, this book provides the ideal tool for thinking with and rediscovering one of the most important intellectuals of the past century. But just as importantly, contributors advance the study of Arendt into neglected areas, such as on science and ecology, to demonstrate her importance not just to debates in which she was well known, but those touched off only after her death. Arendt's approaches as well as her concrete claims about the political have much to offer given the current ecological and refugee crises, among others. In sum, then, the Companion provides a tool for thinking with Arendt, but also for showing just where those thinking with her can take her work today. (shrink)

The first dictionary dedicated to Quentin Meillassoux and the controversies surrounding his thought Perfect for philosophers just starting to read his work and for those looking to deepen their engagement, this dictionary defines all of the major terms of Meillassoux's work, prefaced by an introduction explaining his importance for the Continental philosophy scene. A-Z entries explain the influence of key figures, from Kant to Heidegger to Derrida, and define the complex terms that Meillassoux uses. The entries are written by the (...) top scholars in the field of speculative realism, often by those that highlight their own disagreements with him. This is more than a dictionary; this is your invitation into one of the liveliest debates in current philosophy. (shrink)

This essay describes Derrida's later articulations of the logical; of the ‘undeniable’ and its constant denial. Against anti-realist readings of Derrida as some sort of textual idealist, I show how Derrida's thinking of the undeniable informs his deconstruction of the death penalty in the recently published 1999–2001 lecture courses, as well as the considerations of mortality and finitude that inform all of his writings.

Considers the problems of sovereignty through the work of Rousseau, Arendt, Foucault, Agamben, and Derrida.

My hypothesis is that achieving adulthood has been Russon’s aim from the beginning—in life, yes, as perhaps with the rest of us—but also in and as his philosophical development. To set up this claim, I show how philosophy has traditionally conjoined its own development with narratives of adulthood. I turn to important moments in Plato, Descartes, and Kant to set out the outlines of a given structure of maturation as found in the Western tradition, all to bring home how Russon’s (...) writing tries to achieve something of an event beyond maturity as it’s been envisaged previously in these works. (shrink)

“What must be thought,” Jacques Derrida writes in the closing pages of Rogues, “is this inconceivable and unknowable thing, a freedom that would no longer be the power of a subject, a freedom without autonomy, a heteronomy without servitude, in short, something like a passive decision.”1 To certain readers of Derrida, this passage, coming near the end of Rogues, written some two years before he passed away, would mark the fundamental failure of his thought. “What must be thought …”: an (...) exhortation, an ethical injunction, but seemingly also a final plea at the end of a long career that, many…. (shrink)

The context for these interviews was a seminar [Peter Gratton] conducted on speculative realism in the Spring 2010. There has been great interest in speculative realism and one reason Gratton surmise[s] is not just the arguments offered, though [Gratton doesn't] want to take away from them; each of these scholars are vivid writers and great pedagogues, many of whom are in constant contact with their readers via their weblogs. Thus these interviews provided an opportunity to forward student (...) questions about their respective works. Though each were conducted on different occasions, the interviews stand as a collected work, tying together the most classical questions about “realism” to ancillary movements about the non-human in politics, ecology, aesthetics, and video gaming—all to point to future movements in this philosophical area. (shrink)

I investigate various logical and contextual factors involved in the derivation and use of infinite regresses in infinite regress arguments. I discuss the concept of a regress; identify different kinds of infinite regresses; clarify the core structure of most infinite regress arguments; use the logic of binary relations to explain the derivation of the most common kind of infinite regress encountered in my research; explain how circular definitions and circular explanations entail infinite regresses; discuss the rhetorical features of infinite regress (...) arguments that are presented or analyzed in terms of recurring questions and answers; examine different conditions under which an infinite regress is used to refute a statement; identify different structures of infinite regress arguments that are presented or analyzed in terms of recurring problems and solutions. (shrink)

I argue that there are at least two kinds of tacit premises; describe a certain type of counterexample against the validity of arguments, and then use it to identify one kind of tacit premise. I distinguish two classes of tacit premises on the grounds that they are discovered or constructed differently, they have different roles in an argument or causal explanation, and have different logical relations to each other.

Showing that the premises of an argument are not sufficient for (viz., do not entail) a conclusion a conclusion involves citing a counterexample that would show the premises of the argument to be true and the conclusion false. This paper distinguishes counterexamples by analogy (an argument with the same form as argument against which it is advanced but where it is clearly the case that the premises are true and the conclusion is false), counterexamples by possible conjunction (a conjunction of (...) the premises and the negation of the conclusion), and counter-arguments (arguments directed against the truth of the conclusion). After detailing the logical differences between these concepts, the paper describes the pedagogical significance of this distinction and provides an assortment of test exercises for students. (shrink)

I examine a number of infinite regress arguments whose infinite regresses are presented or described in terms of recurring questions and answers in order to determine whether such recurring questions have any role in generating these infinite regresses, or in disqualifying the recurring answers. I argue that despite the existence of such infinite regress arguments and the suggestions of some philosophers, these recurring questions have no such roles. Some ways of handling these infinite regress arguments are then proposed.

Wide-ranging essays on Jean-Luc Nancy’s thought.

With Eichmann in Jerusalem, we have, I would admit, a most unlikely case study for use in a business ethics classroom. The story of Eichmann is already some sixty years old, and his activities in his career as a Nazi were far beyond the pale of even the most egregious cases found in the typical business ethics case books. No doubt, there is some truth to the fact that introducing Eichmann’s story into an applied ethics class would inevitably depict an (...) unseemly analogy between the practices of latter day corporations and the bureaucracy of the Nazi era. My argument here, though, is that the story of Adolf Eichmann, as depicted in Hannah Arendt’s well-known Eichmann in Jerusalem, offers a philosophically cogent account of judgment and ethical decision-making that future business managers and employees would do well to heed. Indeed, Eichmann in Jerusalem, originally a series of press accounts for New Yorker magazine, deserves consideration alongside the Aristotle’s Nichomachean Ethics, Kant’s Groundwork for the Metaphysics of Morals, and other classic ethics texts in a business ethics syllabus. This is not to say that Arendt’s work is uncontroversial; there are serious questions to be raised about both her depiction of Eichmann and her conclusions about “the banality of evil.” Nevertheless, her account of ethics, which, with its account of ethical duties and its case study of Eichmann’s character, shows both its Aristotelian and Kantian influences, is a warning to readers who would conflate morality with state laws and their duties with the needs of superiors. In short, I argue that, despite her well-known critique of modern large scale economies and her general avoidance of discussions of post-industrial corporations, Arendt may be a business ethicist of the first order. (shrink)

I describe some pedagogical challenges of teaching critical thinking, and propose one way of partly meeting them: the application of critical thinking skills to beliefs responsible for our emotions. I suggest ways of introducing the topic of emotions in our critical thinking courses, describe a project assigned to my students, and provide a model of the project.

I mention the benefits, challenges, and costs of using small group activities to enhance our students’ learning of critical thinking skills in our courses, and then describe ten examples of these groups. Two of these examples are not commonly reported in the literature on small groups, so I describe them in greater detail to facilitate their use in our courses.