During embryogenesis, the basic axon scaffold of the nervous system is formed by special axons that pioneer pathways between groups of cells. To find their way, the pioneer growth cones detect specific cues in their extracellular environment. One of these guidance cues is netrin. Observations and experimental manipulations in vertebrates and nematodes have shown that netrin is a bifunctional guidance cue that can simultaneously attract and repel axons. During the formation of this basic axon scaffold in Caenorhabditis elegans, the netrin (...) UNC‐6 is expressed by neuroglia and pioneer neurons, providing hierarchical guidance cues throughout the animal. Each cue has a characteristic role depending on the cell type, its position and the developmental stage. These roles include activities as global, decussation and labeled‐pathway cues. This hierarchical model of UNC‐6 netrin‐mediated guidance suggests a method by which guidance cues can direct formation of basic axon scaffolds in developing nervous systems. (shrink)

High-spin states have been studied in Pr-135(59), populated through the Cd-116(Na-23,4n) reaction at 115 MeV, using the Gammasphere gamma-ray spectrometer. The negative-parity yrast band has been significantly extended to spin similar to 45 (h) over bar and excitation energy 21.5 MeV, showing evidence for several rotational alignments. The positive-parity yrast band of Ce-135(58), populated through the p4n channel of this reaction, was also populated to spin similar to 38 (h) over bar and excitation energy 18 MeV. Cranking calculations indicate that (...) these nuclei are soft with respect to the triaxiality parameter gamma and that several competing nuclear shapes occur at high spin. (shrink)

Medium- and high-spin states of Pr-134 were populated using the Cd-116(Na-23, 5n) reaction and studied with the GAMMASPHERE spectrometer. Several new bands have been found in this nucleus, one of them being linked to the previously observed chiral-candidate twin-band structure. The ground state of Pr-134 could be determined through establishing a level structure that connects the two previously known long-lived isomeric states. Unambiguous spin-parity assignments for the excited states could be performed based on the known 2(-) spin-parity of the ground (...) state combined with the present experimental data. Intrinsic single-particle configurations have been assigned to the newly observed bands on the basis of the measured B(M1)/B(E2) ratios, alignments, band-crossing frequencies, bandhead spins, the observed single-particle configurations in the neighboring nuclei, and taking into account the predictions of total Routhian surface and tilted-axis cranking calculations. (shrink)

None of us can avoid being interested in food. Our very existence depends on the supply of safe, nutritious foods. It is then hardly surprising that food has become the focus of a wide range of ethical concerns: Is the food we buy safe? Is it produced by means which respect the welfare of animals and sustain the land? Are modern biotechnologies employed in food production immoral? This book addresses such issues by applying ethical principles to many areas of current (...) concern. The contributors provide original and thought-provoking treatments of a number of highly topical issues - from global hunger and its ethical implications to the cultural habits affecting consumption. This interdisciplinary study will prove to be essential reading for all those concerned with food, as professionals, students or consumers. (shrink)

Both of the books reviewed here are anthologies edited by philosophers, intended for use in undergraduate “ethics of eating” classes taught under the auspices of philosophy departments; I review them as a teacher of such a class. The Pojman anthology is rather outdated, and not recommended. The Kaplan anthology, by contrast, would be a valuable starting point or addition to such a class, though it could not carry the class on its own.

Each volume in the Wadsworth Philosophical Topic Series presents an engaging overview of philosophical topics that is accessible to undergraduate philosophy students and general readers, and provides a concise introduction to pertinent topics of philosophical interest. The Wadsworth Philosophical Topic Series presents readers with concise, timely, and insightful introductions to a variety of traditional and contemporary philosophical subjects. Edited by Daniel Kolak of the William Paterson University of New Jersey, this series helps philosophy students to discover the richness (...) of philosophical inquiry across a wide array of concepts. Written by a distinguished list of scholars who have been noted for their exceptional teaching abilities, this series presents the vast sweep of today's philosophical exploration in highly accessible and affordable volumes. These books will prove valuable to philosophy teachers and their students as well as to other readers who share a general interest in philosophy. --From publisher's description. (shrink)

The Wadsworth series of Studies in Philosophical Criticism under the general editorship of Alexander Sesonske, presents collections of critical writings related to a single classical philosophical text for use in undergraduate teaching. Although others of Berkeley's writings are drawn upon by various authors, the selections in this volume are divided into five problem areas which are covered in the Principles. Many of the essays present strong points of view and should help involve students in the dialogue of philosophy. In (...) some, Berkeley serves chiefly as the occasion for the exercise of contemporary philosophical techniques. This accords with the intended function of the series to show the relevance of historical texts to current issues, openly acknowledging that each time teaches the philosophical past in its own terms. The section "Minds and Ideas" includes essays by S. A. Grave, Turbayne, and Monroe Beardsley. The section "Perception and Existence" reprints Mill on the Permanent Possibilities of Sensation, Hume on Personal Identity, Chisholm on Phenomenalism, and an essay by Konrad Marc-Wogau on the Esse-Est-Percipi principle. The third section is "Philosophy and Science." It has two essays, one by T. E. Jessop, the other, Popper's note on Berkeley as precursor of Mach and Einstein, which makes considerable use of De Motu. "Primary and Secondary Qualities" are treated in a selection from Thomas Reid, and an essay by Jonathan Bennett. The final section, "The Existence of God," consists of articles by Bennett and E. J. Furlong. There is a short general bibliography and a list of critical essays which includes many items from the 1950s and 1960s on each sectional topic.--M. B. M. (shrink)

The Wadsworth series of Studies in Philosophical Criticism under the general editorship of Alexander Sesonske, presents collections of critical writings related to a single classical philosophical text for use in undergraduate teaching. Although others of Berkeley's writings are drawn upon by various authors, the selections in this volume are divided into five problem areas which are covered in the Principles. Many of the essays present strong points of view and should help involve students in the dialogue of philosophy. In (...) some, Berkeley serves chiefly as the occasion for the exercise of contemporary philosophical techniques. This accords with the intended function of the series to show the relevance of historical texts to current issues, openly acknowledging that each time teaches the philosophical past in its own terms. The section "Minds and Ideas" includes essays by S. A. Grave, Turbayne, and Monroe Beardsley. The section "Perception and Existence" reprints Mill on the Permanent Possibilities of Sensation, Hume on Personal Identity, Chisholm on Phenomenalism, and an essay by Konrad Marc-Wogau on the Esse-Est-Percipi principle. The third section is "Philosophy and Science." It has two essays, one by T. E. Jessop, the other, Popper's note on Berkeley as precursor of Mach and Einstein, which makes considerable use of De Motu. "Primary and Secondary Qualities" are treated in a selection from Thomas Reid, and an essay by Jonathan Bennett. The final section, "The Existence of God," consists of articles by Bennett and E. J. Furlong. There is a short general bibliography and a list of critical essays which includes many items from the 1950s and 1960s on each sectional topic.--M. B. M. (shrink)

Reprinted in Philosophy of Religion: An Anthology, Wadsworth 2015, 6th edition, eds Michael Rea and Louis Pojman. What is propositional faith? At a first approximation, we might answer that it is the psychological attitude picked out by standard uses of the English locution “S has faith that p,” where p takes declarative sentences as instances, as in “He has faith that they’ll win”. Although correct, this answer is not nearly as informative as we might like. Many people say that (...) there is a more informative answer. They say that, at the very least, propositional faith requires propositional belief. More precisely, they say that faith that p requires belief that p or that it must be partly constituted by belief that p. This view is common enough; call it the Common View. I have two main aims in this paper: (i) to exhibit the falsity of the Common View and the paucity of reasons for it, and (ii) to sketch a more accurate and comprehensive account of what propositional faith is. (shrink)

Using Robert Merton’s perspective on social structure [Social theory and structure. Free Press, New York, 1968], this study tested the individual-level association between job position and ethical reasoning. Anomie theory was employed to examine how country-level factors moderate that individual-level association. The hierarchical linear modeling (HLM) method was used to analyze 22,359 subjects from 28 nations. The statistical results proved that workers are more likely to justify ethically suspect behaviors, and that this individual-level relationship is moderated by the country-level factors (...) of power distance, masculinity, social inequality, and education accessibility. These results imply that Merton’s view of social structure and contemporary anomie theorists’ perspective of anomie [Messner and Rosenfeld (Crime and the American dream. Wadsworth, Belmont, 2001); Rosenfeld and Messner (The future of anomie theory. Northeastern University Press, Boston, 1997)] are mutually complementary rather than exclusive. (shrink)

This brief text assists students in understanding Peirce's philosophy and thinking so they can more fully engage in useful, intelligent class dialogue and improve their understanding of course content. Part of the Wadsworth Notes Series, (which will eventually consist of approximately 100 titles, each focusing on a single "thinker" from ancient times to the present), On Peirce is written by a philosopher deeply versed in the philosophy of this key thinker. Like other books in the series, this concise book (...) offers sufficient insight into the thinking of a notable philosopher, better enabling students to engage in reading and to discuss the material in class and on paper. (shrink)

Reprinted in Philosophy of Religion: An Anthology, Wadsworth, 2013, 6th edition, eds. Michael Rea and Louis Pojman. In this essay, I argue that the moral skepticism objection to what is badly named "skeptical theism" fails.

This brief text assists students in understanding Kuhn's philosophy and thinking so they can more fully engage in useful, intelligent class dialogue and improve their understanding of course content. Part of the Wadsworth Notes Series, (which will eventually consist of approximately 100 titles, each focusing on a single "thinker" from ancient times to the present), ON KUHN is written by a philosopher deeply versed in the philosophy of this key thinker. Like other books in the series, this concise book (...) offers sufficient insight into the thinking of a notable philosopher, better enabling students to engage in reading and to discuss the material in class and on paper. (shrink)

What is knowledge? Why do we want it? Is knowledge possible? How do we get it? What about other epistemic values like understanding and certainty? Why are so many epistemologists worried about luck? In ON EPISTEMOLOGY Linda Zagzebski situates epistemological questions within the broader framework of what we care about and why we care about it. Questions of value shape all of the above questions and explain some significant philosophical trends: the obsession with answering the skeptic, the flight from realism, (...) and the debate between naturalism and anti-naturalism. THE WADSWORTH PHILOSOPHICAL TOPICS SERIES (under the general editorship of Robert Talisse, Vanderbilt University) presents readers with concise, timely, and insightful introductions to a variety of traditional and contemporary philosophical subjects. With this series, students of philosophy will be able to discover the richness of philosophical inquiry across a wide array of concepts, including hallmark philosophical themes and themes typically underrepresented in mainstream philosophy publishing. Written by a distinguished list of scholars who have garnered particular recognition for their excellence in teaching, this series presents the vast sweep of today's philosophical exploration in highly accessible and affordable volumes. These books will prove valuable to philosophy teachers and their students as well as to other readers who share a general interest in philosophy. Important Notice: Media content referenced within the product description or the product text may not be available in the ebook version. (shrink)

This book, originally published in 1973 by Wadsworth, is a collection of important past and present discussions of ethical relativism designed to bring out the diversity and controversial nature of the issues.

This brief text assists students in understanding Mead's philosophy and thinking so they can more fully engage in useful, intelligent class dialogue and improve their understanding of course content. Part of the Wadsworth Notes Series, (which will eventually consist of approximately 100 titles, each focusing on a single "thinker" from ancient times to the present), ON MEAD is written by a philosopher deeply versed in the philosophy of this key thinker. Like other books in the series, this concise book (...) offers sufficient insight into the thinking of a notable philosopher, better enabling students to engage in reading and to discuss the material in class and on paper. (shrink)