The sudden appearance in the fossil record of the major animal phyla apparently records a phase of unparalleled, rapid evolution at the base of the Cambrian period, 545 Myr ago. This has become known as the Cambrian evolutionary ‘explosion’, and has fuelled speculation about unique evolutionary processes operating at that time. The acceptance of the palaeontological evidence as a true reflection of the evolutionary narrative has been criticised in two ways: from a reappraisal of the phylogenetic relationships of the early (...) fossils, and from predicitions of molecular divergence times, based on six appropriate metazoan genes. Phylogenetic analysis of the arthropods implies an earlier, Precambrian history for most clades, and hence an extensive period of cladogenesis unrecorded by fossils. A similar argument can be applied to molluscs, lophophorates and deuterostomes. Molecular evidence implies divergence between clades to at least 1000 Myr ago. The apparent paradox between the sudden appearance of recognisable metazoans and their extended evolutionary history might be explained by a sudden Cambrian increase in body size, which was accompanied by skeletisation. A new paradigm suggests that the ‘explosion’ in the record may have been decoupled from the evolutionary innovation. (shrink)

Considering the enormous diversity of living organisms, representing mostly untapped resources for studying ecological, ontogenetic and phylogenetic patterns and processes, why should evolutionary biologists concern themselves with the remains of animals and plants that died out tens or even hundreds of millions of years ago? The reason is that important new insights into some of the most vexing evolutionary questions are being revealed at the interfaces of palaeontology, developmental biology and molecular biology. Attempts to synthesise information from these disciplines, however, (...) often encounter their greatest hurdles in considerations of the radiation of the Metazoa. Ongoing challenges relate to the origins of body plans, the relationships of the metazoan phyla and the timing of major evolutionary radiations. Palaeontology not only has its own unique contributions to the study of evolutionary processes, but provides a lynchpin for many of the emerging techniques. BioEssays 22:1142–1152, 2000. © 2000 John Wiley & Sons, Inc. (shrink)

In this essay we contend that traditional theories of argument are consonant with and enrich the project of postmodernity. Reading postmodernity as ‘a rhetoric’ underscores how the process of discursively resolving conflicts is occasionally threatened by politically motivated efforts to misuse the methods of argument; it alerts us to the egregious acts that are and can be performed ‘in the name of,’ but not because of, rationality. Postmodernity is thus an attempt by a new generation of theorists to recast and (...) draw attention to perennial philosophical problems in the context of contemporary political difficulties. (shrink)

Among the challenges posed by postmodernity are significant questions concerning the proper role and even the ultimate legitimacy of traditional theories and practices of argument. This introduction positions the essays that follow against the intellectual landscape of postmodern thought.

This elevating pull of an ethics that can account for the relation of self and other without reducing either term is the central theme of these essays.

The reputation and influence of Emmanuel Levinas has grown powerfully. Well known in France in his lifetime, he has since his death become widely regarded as a major European moral philosopher profoundly shaped by his Jewish background. A pupil of Husserl and Heidegger, Levinas pioneered new forms of exegesis with his post-modern readings of the Talmud, and as an ethicist brought together religious and non-religious, Jewish and non-Jewish traditions of contemporary thought. Richard A. Cohen has written a book which (...) uses Levinas' work as its base but goes on to explore broader questions of interpretation in the context of text-based ethical thinking. Levinas' reorientation of philosophy is considered in critical contrast to alternative contemporary approaches such as those found in modern science, psychology, Nietzsche, Freud, Husserl, Heidegger, Sartre, Merleau-Ponty, Derrida and Ricoeur. Cohen explores a manner of philosophizing which he terms 'ethical exegesis'. (shrink)

_Epistemology _is an accessible and indispensable volume for undergraduates studying philosophy. Essential introduction to epistemology, a field of fundamental philosophical importance Offers concise and well-written synopses of different epistemological debates and concerns.

An introduction to the ethical and ontological import of Levinas' philosophy.

... and Normative Epistemology The Distinction Between Metaepistemology and Normative Epistemology Although this terminology is relatively new, ...

Models of psychological time / Richard A. Block -- Implicit and explicit representations of time / John A. Michon -- The evasive art of subjective time...

Being 'biblical' : contexts and starting points -- Jesus of Nazareth : great moral teacher or friend of sinners? -- Paul : follower or founder? -- Mark : suffering for the kingdom -- Matthew : being truly righteous -- Luke-Acts : a universal concern -- John : teaching the truth in love -- Apartheid : an ethical and generic challenge to reading the New Testament.

Brosio (social foundations of education, Ball State U.) describes and analyzes a number of philosophies that can provide a solid framework for the construction of critical, democratic educational theory and practice. Theorists discussed include the classical Greek thinkers, Marx, Dewey, the existentialists, liberationists, Freire, politics of identity thinkers, and postmodernists. Annotation copyrighted by Book News, Inc., Portland, OR.

I. Levinas, Spinozism, Nietzsche and the body -- II. Prophetic speech in Levinas and Spinoza (and Maimonides) -- III. Levinas and Spinoza: to love God for nothing -- IV. Levinas and Spinoza: justice and the state -- V. Spinoza's Prince: for whom is the theological-political treatise written? VI. Levinas on Spinoza's misunderstanding of Judaism -- VII. Thinking least about death: mortality and morality in Spinoza, Heidegger and Levinas -- VIII. Spleen: Spinoza's babies, fools and madmen.

1. Pragmatism: Philosophical versus everyday. 2. Legal pragmatism. 3. John Dewey on Democracy and law. 4. Two concepts of democracy. 5. Democracy defended. 6. The concepts applied.

Contemporary philosophers are increasingly turning to the work of Emmanuel Levinas to bring a consideration of ethics into their own thinking. As an exponent of the phenomenological tradition, Levinas ranks with Heidegger and Sartre; as a disciple of Husserl, he was one of the most independent and original interpreters, testifying to the fruitfulness of Husserl's phenomenology. In collecting almost all of Levinas's articles on Husserlian phenomenology, this volume gathers together a wealth of thoughtful exposition and interpretation by one of the (...) most important European philosophers of the twentieth century. Levinas's thought is relevant to a broad variety of disciplines and concerns. This volume serves as a reliable introduction for the beginning student, as well as satisfying the expert's more demanding and critical desire for insight into the complexities of Levinas's thought. (shrink)

This important volume explores alternative ways in which those involved in the field of speech communication have attempted to find a philosophical grounding for rhetoric. Recognizing that rhetoric can be supported in a wide variety of ways, this text examines eight different philosophies of rhetoric: realism, relativism, rationalism, idealism, materialism, existentialism, deconstructionism, and pragmatism. The value of this book lies in its pluralistic and comparative approach to rhetorical theory. Although rhetoric may be the more difficult road to philosophy, the fact (...) that it is being traversed by a group of authors largely from speech communication demonstrates important growth in this field. Ultimately, there is recognition that if different thinkers can have solid reasons to adhere to disparate philosophies, serious communication problems can be eliminated. Rhetoric and Philosophy will assist scholars in choosing from among the many philosphical starting places for rhetoric. (shrink)

This important volume explores alternative ways in which those involved in the field of speech communication have attempted to find a philosophical grounding for rhetoric. Recognizing that rhetoric can be supported in a wide variety of ways, this text examines eight different philosophies of rhetoric: realism, relativism, rationalism, idealism, materialism, existentialism, deconstructionism, and pragmatism. The value of this book lies in its pluralistic and comparative approach to rhetorical theory. Although rhetoric may be the more difficult road to philosophy, the fact (...) that it is being traversed by a group of authors largely from speech communication demonstrates important growth in this field. Ultimately, there is recognition that if different thinkers can have solid reasons to adhere to disparate philosophies, serious communication problems can be eliminated. _Rhetoric and Philosophy_ will assist scholars in choosing from among the many philosphical starting places for rhetoric. (shrink)

Leading scholars address Paul Ricoeur's last major work, Oneself as Another.

_Epistemology_ is an accessible and indispensable volume for undergraduates studying philosophy. Essential introduction to epistemology, a field of fundamental philosophical importance Offers concise and well-written synopses of different epistemological debates and concerns.

There is long-standing disagreement among systematists about how to divide biodiversity into species. Over twenty different species concepts are used to group organisms, according to criteria as diverse as morphological or molecular similarity, interbreeding and genealogical relationships. This, combined with the implications of evolutionary biology, raises the worry that either there is no single kind of species, or that species are not real. This book surveys the history of thinking about species from Aristotle to modern systematics in order to understand (...) the origin of the problem, and advocates a solution based on the idea of the division of conceptual labor, whereby species concepts function in different ways - theoretically and operationally. It also considers related topics such as individuality and the metaphysics of evolution, and how scientific terms get their meaning. This important addition to the current debate will be essential for philosophers and historians of science, and for biologists. (shrink)

Because little is known about the human trait of affiliation, we provide a novel neurobehavioral model of affiliative bonding. Discussion is organized around processes of reward and memory formation that occur during approach and consummatory phases of affiliation. Appetitive and consummatory reward processes are mediated independently by the activity of the ventral tegmental area (VTA) dopamine (DA)–nucleus accumbens shell (NAS) pathway and the central corticolimbic projections of the u-opiate system of the medial basal arcuate nucleus, respectively, although these two projection (...) systems functionally interact across time. We next explicate the manner in which DA and glutamate interact in both the VTA and NAS to form incentive-encoded contextual memory ensembles that are predictive of reward derived from affiliative objects. Affiliative stimuli, in particular, are incorporated within contextual ensembles predictive of affiliative reward via: (a) the binding of affiliative stimuli in the rostral circuit of the medial extended amygdala and subsequent transmission to the NAS shell; (b) affiliative stimulus-induced opiate potentiation of DA processes in the VTA and NAS; and (c) permissive or facilitatory effects of gonadal steroids, oxytocin (in interaction with DA), and vasopressin on (i) sensory, perceptual, and attentional processing of affiliative stimuli and (ii) formation of social memories. Among these various processes, we propose that the capacity to experience affiliative reward via opiate functioning has a disproportionate weight in determining individual differences in affiliation. We delineate sources of these individual differences, and provide the first human data that support an association between opiate functioning and variation in trait affiliation. Key Words: affiliation corticolimbic-striatal networks; appetitive and consummatory reward; dopamine; oxytocin; personality; social bonds; social memory; u-opiates. (shrink)

In this book, he applies economic theory to four areas of interest to students of social and legal institutions: the theory of justice, primitive and ancient ...

Posner characterizes the current preoccupation with moral and constitutional theory as an evasion of the real need of American law, which is for a greater understanding of the social, economic, and political facts out of which great legal controversies arise, and advocates a rebuilding of the law on the basis of systematic empirical inquiry.

Levinas seamlessly unites philosophy and religion via ethics. By doing so he satisfies philosophy's quest for justification by finding it neither in epistemology nor aesthetics (nor in an escapist "fundamentalism") but in the responsibility of each person for each other and for all others. That is to say, the "ground" of meaning emerges neither in intellect nor imagination but in the moral responsibilities one person has for another and, beyond these already infinite obligations, in the justice - law and equality (...) - that such responsibilities require and engender. All of this is at the same time a consistent expression, indeed a profoundly mature expression of the ethical monotheist vision of traditional rabbinic Judaism and of non-mythological religious consciousness more generally. /// O pensamento de Emmanuel Levinas induz uma união perfeita entre Filosofia e Religião mediante a Ética. Nesta medida, o filósofo dá resposta à pergunta da Filosofia pela sua própria justificação, justificação essa que ele não encontra nem na epistemologia nem na estética (nem em qualquer forma de escapismo fundamentalista), mas na responsabilidade de cada pessoa por cada um e por todos. Or a isto equivale a dizerque o "fundamento" para o sentido não emerge nem do intelecto nem da imaginação, mas sim da responsabilidade moral que nos obriga a cada um diante dos outros e, para lá destas obrigações infinitas, nos compromete com a justiça - representada no princípio da legalidade e da equidade - requerida e engendrada por essas mesmas responsabilidades. Tudo isto, para o autor, é ao mesmo tempo expressão consistente, de facto, uma expressão profundamente madura da visão ética monoteísta do Judaísmo rabínico e, de uma forma mais geral, de toda a forma de consciência religiosa não mitológica. (shrink)