There are a growing number of examples where naturally occurring mutations disrupt an established physiological or developmental pathway to yield a new condition that is evolutionary favored. Asexual reproduction by seed in plants, or apomixis, occurs in a diversity of taxa and has evolved from sexual ancestors. One form of apomixis, diplospory, is a multi‐step development process that is initiated when meiosis is altered to produce an unreduced rather than a reduced egg cell. Subsequent parthenogenetic development of the unreduced egg (...) yields genetically maternal progeny. While it has long been apparent from cytological data that meiosis in apomicts was malfunctional or completely bypassed, the genetic basis of the phenomenon has been a long‐standing mystery. New data from genetic analysis of Arabidopsis mutants1 in combination with more sophisticated molecular understanding of meiosis in plants indicate that a weak mutation of the gene SWI, called DYAD, interferes with sister chromatid cohesion in meiosis I, causes synapsis to fail in female meiosis and yields two unreduced cells. The new work shows that a low percentage of DYAD ovules produce functional unreduced egg cells (2n) that can be fertilized by haploid pollen (1n) to give rise to triploid (3n) progeny. While the DYAD mutants differ in some aspects from naturally occurring apomicts, the work establishes that mutation to a single gene can effectively initiate apomictic development and, furthermore, focuses efforts to isolate apomixis genes on a narrowed set of developmental events. Profitable manipulation of meiosis and recombination in agronomically important crops may be on the horizon. BioEssays 30:798–801, 2008. © 2008 Wiley Periodicals, Inc. (shrink)

. Moral systems are described as systems of indirect reciprocity, existing because of histories of conflicts of interest and arising as outcomes of the complexity of social interactions in groups of long‐lived individuals with varying conflicts and confluences of interest and indefinitely iterated social interactions. Although morality is commonly defined as involving justice for all people, or consistency in the social treatment of all humans, it may have arisen for immoral reasons, as a force leading to cohesiveness within human groups (...) but specifically excluding and directed against other human groups with different interests. (shrink)

The Body Incantatory: Spells and the Ritual Imagination in Medieval Chinese Buddhism. By Paul Copp. Sheng Yan Series in Chinese Buddhist Studies. New York: Columbia University Press, 2014. Pp. xxx + 363. $55.

By a thorough study of the Posterior Analytics and related Aristotelian texts, Richard McKirahan reconstructs Aristotle's theory of episteme--science. The Posterior Analytics contains the first extensive treatment of the nature and structure of science in the history of philosophy, and McKirahan's aim is to interpret it sympathetically, following the lead of the text, rather than imposing contemporary frameworks on it. In addition to treating the theory as a whole, the author uses textual and philological as well as philosophical material (...) to interpret many important but difficult individual passages. A number of issues left obscure by the Aristotelian material are settled by reference to Euclid's geometrical practice in the Elements. To justify this use of Euclid, McKirahan makes a comparative analysis of fundamental features of Euclidian geometry with the corresponding elements of Aristotle's theory. Emerging from that discussion is a more precise and more complex picture of the relation between Aristotle's theory and Greek mathematics--a picture of mutual, rather than one-way, dependence. Originally published in 1992. The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These editions preserve the original texts of these important books while presenting them in durable paperback and hardcover editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905. (shrink)

A number of studies in the apparent motion literature were examined using the cognitive penetrability criterion to determine the extent to which beliefs affect the perception of apparent motion. It was found that the interaction between the perceptual processes mediating apparent motion and higher order processes appears to be limited. In addition, perceptual and inferential beliefs appear to have different effects on perceived motion optimality and direction. Our findings suggest that the system underlying apparent motion perception has more than one (...) stage and is informationally encapsulated from cognitive factors. (shrink)

In Republic ix, Socrates begins his argument that deceptive pleasure causes insatiable desire by citing the error that cessation of pain is the greatest pleasure. Some interpret this error as an illusion, experiencing pleasure when there is no pleasure; but illusion cannot explain insatiable desire. Our interpretation explains insatiable desire—and Socrates’ restatement of wisdom and justice to include pleasures, which links the knowledge of unchanging reality with these virtues.

This valuable work of reference provides a comprehensive bibliography on all scholarly work that was published on Plato and Socrates during the years 1958-73. It thus forms an important addition to Harold Cherniss’s bibliography, which covered the years 1950-7. The author has sought to include all materials primarily concerned with Socrates and Plato, together with other works which make a contribution to our understanding of the two philosophers. The bibliography is arranged by topic and there are cross-references at the end (...) of each section. The works in each category are arranged chronologically and then alphabetically within each year. An effort has been made to distinguish when a book has had more than one edition and when an article has been reprinted. Additionally the author has listed reviews of books and dissertations as these have come to his attention. (shrink)

This book offers a new way of looking at the 5th century BCE Sophists, rejecting the bad reputation they have had since antiquity and presenting them as individuals rather than a "movement", each with his own speciality and personality as revealed through the scant surviving evidence. It provides an account of the Sophists of this period that explains the historical and social developments that led to their prominence and popularity, demonstrating the reasons for their importance and for their seeming disappearance (...) in the 4th century BCE. Restricted to discussion of the few Sophists for whom there are surviving quotations or other texts, The Sophists avoids generalizations often found in other books. It contains accurate translations of most of the surviving material, which forms the securest possible basis for understanding the Sophists as individuals in their various roles, not only as educators but also as ambassadors and pioneers in other fields. After a general introduction, the following chapters present each of the Sophists individually, followed by three chapters which present topics treated by more than one Sophist, such as Logos, Definition and the Nomos-Phusis contrast. The final three chapters reveal the way three important intellectuals of the fourth century (Plato, his rival Isocrates and Aristotle) dealt with the Sophists. An appendix contains several longer passages or works in their entirety in translation, allowing readers to have access to the original source materials and develop their own interpretations. This thorough treatment of the fifth-century Sophists is of interest to scholars working on the subject and on ancient Greek philosophy more broadly, while also being accessible to undergraduate students and the general public interested in the topic. (shrink)

This paper argues for the proposition that there is fundamental incoherence in the idea of a divine designer. Such a being would have to have intentions and thoughts prior to designing and making a world. But it is a necessary truth that thought – of the complex and articulated kind necessary for the design of a cosmos – presupposes possession of language. It is further necessarily true that language is impossible, save for beings who inhabit a public world containing other (...) linguistic subjects. The divine designer would be the impossible exemplar of the private language, whose incoherence was demonstrated by Wittgenstein. Objections to this line of argument are noted and rebutted. Even God can't whisper in His own ear.Isaak Babel (Published Online February 17 2004). (shrink)

This book is a succinct introduction to the orienting of attention.

Marina McCoy defends three interrelated claims about the topic mentioned in her title. First, the distinction between philosophy and rhetoric in the dialogues is not as clear as some commentators seem to think. Second, since philosophy as practiced by Socrates includes important rhetorical dimensions, there is no important methodological distinction between philosophy and rhetoric. Third, it is his virtues—and not any particular method—that differentiate Socrates the philosopher from sophists and rhetoricians. McCoy pursues different aspects of her theses through the Apology, (...) Protagoras, Gorgias, Republic, Sophist , and Phaedrus.Her approach coheres with that of a contemporary school of interpretation according to which a proper appreciation of the dramatic setting of each dialogue will show that the content of Socratic conversation is not meant to be a body of substantive philosophical doctrine. Rather, Socrates’ quarry is the souls of his interlocutors. McCoy’s contribution to this line of. (shrink)