The assembly of a bipolar spindle is essential for the accurate segregation of replicated chromosomes during cell division. Do chromosomes rely solely on other cellular components to regulate the assembly of the bipolar spindle or are they masters of their own fate? In the Zhang and Nicklas(1) study reviewed here, micromanipulation techniques and video microscopy were used to demonstrate the different roles that chromosome arms, kinetochores and centrosomes play in bipolar spindle assembly.

This article examines parallel challenges and avenues for progress I have observed in my efforts to introduce improvisation in classical music studies, and meditation in music and overall academic settings. Though both processes were once central in their respective knowledge traditions—improvisation in earlier eras of European classical music, meditation and contemplative disciplines in Western philosophy—as well as being globally prominent, they nonetheless occupy marginalised roles in the contemporary academy. Other parallels include the challenges and benefits inherent in the interplay between (...) tradition-specific and trans-traditional engagement, where grounding in a musical lineage such as jazz promotes informed trans-idiomatic musical exploration and synthesis, and grounding in a contemplative lineage provides foundations for navigating the often-turbulent waters of the contemporary spiritual smorgasbord. I argue that a more critical look at integrity of practice, consisting in not only methodologies but also views of consciousness and human development, is key to the future progress of the contemplative studies movement and the contributions it may make to education and society at large. (shrink)

Unless the public comes to agree that the benefits of food biotechnology are desirable and the associated risks are acceptable, our society may fail to realize much of the potential benefits. Three historical cases of major technological innovations whose benefits and risks were the subject of heated public controversy are examined, in search of lessons that may suggest a path toward consensus in the biotechnology debate. In each of the cases—water fluoridation, nuclear power and pesticides—proponents of the technology gathered scientific (...) evidence that they believed established that the innovations were safe. In each case, the federal government was heavily involved in oversight, safety regulation, and in the first two cases, active promotion of the technology. Supporters of the technologies employed a variety of communications strategies, ranging from massive “educational” campaigns (e.g. “Our Friend The Atom”) to vituperative ad hominem attacks on leading opponents. None of these strategies succeeded in achieving broad societal acceptance of the technologies. Fluoridation today is opposed as vigorously by activist groups as it was when first introduced around 1950; it has not been universally adopted even in the U.S., and it has been rejected in most other countries. The American nuclear power industry is moribund, and the public has essentially rejected the technology. The pesticide industry is thriving, with new generations of products succeeding older more hazardous chemicals in a constant cycle. However, strong regulation has failed to prevent adverse health and ecological effects, which have been empirically associated with pesticide uses after the chemicals were dispersed in the environment. Debate over whether risks of such effects are acceptable has been heated for four decades, with scientists and the public divided. None of these cases offers an ideal model for the biotechnology revolution, though they do reveal many strategies that have not worked. The biotechnology debate is also taking place at a time when our concepts of risk communication have improved, and when many consumers are more actively concerned with buying products perceived to be less likely to harm the environment. Based on the three case histories and more recent trends, some characteristics of a process for seeking a societal consensus are described. They include explicitly defining the subjects for consensus; including all stakeholders in a respectful dialogue; confronting value issues, such as acceptability of risks and ethical perceptions; listening to others’ perspectives, and being willing to change one’s own point of view. If activists on all sides of the food biotechnology debate are willing to commit to such a consensus-building process, there is hope that the U.S. national debate can be resolved in a manner satisfactory to essentially all parties. (shrink)

Pragmatic self-refutation is when one asserts something but one’s act of assertion refutes the content of that assertion. In this paper, I consider whether Donald Davidson is guilty of this when arguing against the possibility of alternative conceptual schemes.

We discuss several issues raised by Caplan & Waters's distinction between interpretative and post-interpretative processes in sentence comprehension, including the nature and properties of the two systems, problems with measuring their respective capacities, and the relationship between the hypothesized separate-language-interpretation-resource (SLIR) and the general verbal working memory system that supports post-interpretive processing.

"Biophilia" is the term coined by Edward O. Wilson to describe what he believes is humanity's innate affinity for the natural world. In his landmark book Biophilia, he examined how our tendency to focus on life and lifelike processes might be a biologically based need, integral to our development as individuals and as a species. That idea has caught the imagination of diverse thinkers. The Biophilia Hypothesis brings together the views of some of the most creative scientists of our (...) time, each attempting to amplify and refine the concept of biophilia. The variety of perspectives -- psychological, biological, cultural, symbolic, and aesthetic -- frame the theoretical issues by presenting empirical evidence that supports or refutes the hypothesis. Numerous examples illustrate the idea that biophilia and its converse, biophobia, have a genetic component: fear, and even full-blown phobias of snakes and spiders are quick to develop with very little negative reinforcement, while more threatening modern artifacts -- knives, guns, automobiles -- rarely elicit such a response people find trees that are climbable and have a broad, umbrella-like canopy more attractive than trees without these characteristics people would rather look at water, green vegetation, or flowers than built structures of glass and concrete The biophilia hypothesis, if substantiated, provides a powerful argument for the conservation of biological diversity. More important, it implies serious consequences for our well-being as society becomes further estranged from the natural world. Relentless environmental destruction could have a significant impact on our quality of life, not just materially but psychologically and even spiritually. (shrink)

Twenty-five years ago, communism, the political system dominant in Eastern Europe, collapsed. Two years later, in 1991, the Soviet Union was dissolved. The People’s Republic of China remained the sole communist power, but throughout the 1990s its anti-capitalist party line was watered down through the introduction of market-oriented reforms. Today, only one country can be said to be truly communist: North Korea. Communism, in the 1980s a mighty geopolitical force holding half of Europe and roughly one third of the world’s (...) population in its grip, is today confined to an internationally isolated prison state, one of the poorest countries on the planet. How are we to remember the past of a utopia? By recounting the utopian dream? Or maybe by still dreaming the dream, hoping for it to come true? After all, as Alain Badiou puts it in his book The Communist Hypothesis,1 “Communism is [still] the right hypothesis”, and those who disagree “resign themselves to the market economy, to parliamentary democracy” — the true evils of our time, in Badiou’s eyes. But was communism just a dream, just a hypothesis? (shrink)

In this beautifully written book David E. Cooper uses a gentle walk through a tropical garden, the view of the fields and hills beyond it, the sound of birds, voices and flute, the reflection of light in water, the play of shadows among the trees and presence of strange animals, as an opportunity to reflect on experiences of nature and the mystery of existence. Covering an extensive range of topics, from Daoism to dogs, from gardening to walking, from Zen to (...) Debussy, Cooper succeeds in conveying some deep and difficult philosophical ideas about the meaning of life in an engaging manner, and in showing how those ideas bear upon the practical question of how we should relate to our world and live our lives. A thought-provoking and compelling book, _Senses of Mystery_ is a triumph of both storytelling and philosophy. (shrink)

This paper re-constructs Plato's ‘philosophy of geometry’ by arguing that he uses a geometrical method of hypothesis in his account of the cosmos’ generation in the Timaeus. Commentators on Plato's philosophy of mathematics often start from Aristotle's report in the Metaphysics that Plato admitted the existence of mathematical objects in-between ( metaxu) Forms and sensible particulars ( Meta. 1.6, 987b14–18). I argue, however, that Plato's interest in mathematics was centred on its methodological usefulness for philosophical inquiry, rather than on questions (...) of mathematical ontology. My key passage of interest is Timaeus’ account of the generation of the primary bodies in the cosmos, i.e. fire, air, water and earth ( Tim. 48b–c, 53b–56c). Timaeus explains the primary bodies’ origin by hypothesising two right-angled triangles as their starting-point ( arkhê) and describing their individual geometrical constitution. This hypothetical operation recalls the hypothetical method which Socrates introduces in the Meno (86e–87b), as well as the use of hypotheses by mathematicians which is described in the Republic (510b–c). Throughout the passage, Timaeus is focussed on explicating the bodies in terms of their formal structure, without however considering the ontological status of the triangles in relation to the physical world. (shrink)

An explanation for why the Bisa do not perform a traditional dance to express their identity is all-or-nothing reasoning: “We would have to water it down for this audience and that is not a Bisa dance.”.

Crises such as water quality, pollution, climate change, overfishing, biodiversity, energy, waste, and carbon sequestration mean that legislation protecting the marine environment is under intense pressure to be effective and to demonstrate positive results in a vast array of public and private spheres. Thus far, scholarship of EU marine environmental law has been focused primarily on (i) interaction with international agreements (ii) spatial/jurisdictional studies (iii) analysis of new laws, plans and programmes (iv) principles (e.g. good environmental status, precautionary approach, polluter (...) pays) (v) CJEU case analysis (vi) enforcement (vii) specific issues (plastics, litter…). However, over the years the mass constituted by the EU marine environment acquis has grown ever-larger, leading to risks of poor coordination, over-regulation in some areas and lack of regulation in others. By triangulating complementary investigatory methodologies, this study teases out systemic, diachronic and legilinguistic interlinkages—within and across key instruments as well as EU institutions, bodies and agencies. Our results provide avenues for policymakers nationally and at EU level to improve the legibility and coherence of marine environmental regulation—to the benefit of citizens and the wider body of stakeholders, and, ultimately, to benefit the marine world. (shrink)

Law is indispensable to the public's health. The twentieth century proved this true as law contributed to each of the century's ten great public health achievements: vaccination, healthier mothers and babies, family planning, safer and healthier foods, fluoridation of drinking water, the control of infectious diseases, the decline in death from heart disease and stroke, recognition of tobacco use as a health hazard, motor vehicle safety, and safer workplaces.The readers of this journal can give examples of the relevant types of (...) laws with ease: Jacobson v. Massachusetts, the 1905 U.S. Supreme Court case that upheld the constitutionality of compulsory vaccination; mandatory immunization for school admission; authorization of state prenatal care programs; mandatory fortification of foods; Title X of the Public Health Service Act; the Pure Food and Drugs Act of 1906; the Safe Drinking Water Act of 1974, and hundreds of state and local enactments regulating food; fluoridation ordinanceswater, and sanitation; the Surgeon General's warning notices on cigarette packs and restrictions on marketing tobacco; seat belt laws and mandated vehicle and highway design features; and laws like the federal Occupational Safety and Health Act of 1970 that regulate working conditions. (shrink)

Stability definitions for describing human behavior under conflict when coalitions may form are generalized within the Graph Model for Conflict Resolution and algebraic formulations of these definitions are provided to allow computer implementation. The more general definitions of coalitional stabilities relax the assumption of transitive graphs capturing movements under the control of decision makers, either independently or cooperatively, and allow the convenient expansion to the case of coalitions of the four basic individual stabilities consisting of Nash stability, general metarationality, symmetric (...) metarationality, and sequential stability. To permit the various coalitional stabilities to be efficiently calculated and conveniently encoded within a decision support system, algebraic expressions for the coalitional stabilities are provided in this research. Furthermore, a range of the theorems establish the mathematical credibility of employing the innovative algebraic approach to conflict resolution when coalitions are present. Finally, a conflict over the proposed exportation of bulk water from Lake Gisborne within the Canadian Province of Newfoundland and Labrador is modelled and analyzed to illustrate the practical application of the different coalitional stabilities and the strategic insights they provide. (shrink)

I first visited the Galápagos Islands in June 1998, and little was as I expected. Rather than craggy barrens covered with scrub, lush foliage beautified many islands. Rather than flourishing coastal habitats, surface water temperatures were well above normal, and throughout the archipelago dead or dying sea lions, sea birds, and marine iguanas littered the shores. All of this was the result of increased rainfall and the disruption of the normal upwelling in waters surrounding the archipelago caused by the (...) 1997–1998 El Niño event. When I visited Galápagos again, in February 1999, the islands were suffering one of the driest periods on record, and terrestrial vegetation had died back; but the cool, nourishing upwelling had resumed, and the marine environment was thriving.A “study in contrasts” aptly describes the two extremes in environmental conditions in the Galápagos Islands in 1998 and 1999 and, as Edward Larson captures beautifully in this book, many aspects of their history. Indeed, a theme that emerges in Larson's historical account of the Galápagos is one of irony. Compare Herman Melville's characterization of the islands as “an archipelago of aridities, without inhabitant, history, or hope of either in all time to come” , with modern biologists' and eco‐tourists' view of the Galápagos as “hallowed ground” and “enchanting”; the view of Galápagos as a place where one can so easily see Creation with the view that is is a place where one can so easily see evolution ; the popular belief that Darwin used Galápagos finches as the basis of his theory of natural selection with the reality that a complete picture of Galápagos finch evolution didn't emerge until it was unveiled in 1947 by David Lack, who renamed “Galápagos finches” “Darwin's finches”; the treatment of Galápagos as a land of plenty from which early sailors, buccaneers, and greedy naturalists removed tens of thousands of tortoises with its current status as a land in which a single tortoise named Lonesome George is an icon for conservation worldwide; and its small stature in terms of geographical size with its monumental stature in terms of impact on the history of biological science.Expanding on the last contrast, Larson offers the following insight from Robert Bowman: “No area on Earth of comparable size has inspired more fundamental changes in Man's perspective of himself and his environment than the Galápagos Islands” . As such, the comprehensive history of the place provided by Larson is well justified. It is also fascinating, and Larson tells the tale well—concisely, occasionally with wit, and always with inclusive documentation. The text is divided into three parts, the first covering the period from the discovery of the New World, including Galápagos in 1535, to Darwin's legendary visit in 1835 and the subsequent publication of On the Origin of Species in 1859; the second, the explosion of interest in the archipelago by American and European naturalists in the late nineteenth and early twentieth centuries; and the third, the remarkable transformation of the Galápagos between World War II, during which it served as a military base for the United States, to the present. Following and cited in the text are sixty‐three pages of notes, a veritable gold mine of references to classic and obscure published material that demonstrate both how thoroughly Larson researched the topic and how persistently this small archipelago has pervaded scientific, governmental, religious, and public thought.This book is more than a historical account of scientific exploration in Galápagos; it is also a dramatic story of the history of Galápagos in human thought. By incorporating thoughts and findings of nearly every famous, infamous, and forgettable player in Galápagos exploration in roughly chronological order and in the context of prevailing social or scientific mores, Larson provides an extraordinary glimpse into human nature. Regarding the evolution of human thought in conceptualizing organic evolution, Larson demonstrates that spiritual concerns or other constraints prevent some individuals from progressing intellectually, others eagerly abandon all tradition to embrace new concepts, and still others find middle ground. As noted poignantly, no less than ironically, by Larson, creation science, not evolution, is taught in Galápagos schools, and this once‐pristine archipelago is now bustling with humans and the predictable problems that accompany us. The history of Galápagos, both in terms of its ultimate fate and its influence on human thought, is not finished. The sequel to Evolution's Workshop may be equally intriguing. (shrink)

Biologists studying complex causal systems typically identify some factors as causes and treat other factors as background conditions. For example, when geneticists explain biological phenomena, they often foreground genes and relegate the cellular milieu to the background. But factors in the milieu are as causally necessary as genes for the production of phenotypic traits, even traits at the molecular level such as amino acid sequences. Gene-centered biology has been criticized on the grounds that because there is parity among causes, the (...) “privileging” of genes reflects a reductionist bias, not an ontological difference. The idea that there is an ontological parity among causes is related to a philosophical puzzle identified by John Stuart Mill: what, other than our interests or biases, could possibly justify identifying some causes as the actual or operative ones, and other causes as mere background? The aim of this paper is to solve this conceptual puzzle and to explain why there is not an ontological parity among genes and the other factors. It turns out that solving this puzzle helps answer a seemingly unrelated philosophical question: what kind of causal generality matters in biology? (shrink)

This paper investigates what molecular biology has done for our understanding of the gene. I base a new account of the gene concept of classical genetics on the classical dogma that gene differences cause phenotypic differences. Although contemporary biologists often think of genes in terms of this concept, molecular biology provides a second way to understand genes. I clarify this second way by articulating a molecular gene concept. This concept unifies our understanding of the molecular basis of a wide variety (...) of phenomena, including the phenomena that classical genetics explains in terms of gene differences causing phenotypic differences. (shrink)

Darwinians are realists about the force of selection, but there has been surprisingly little discussion about what form this realism should take. Arguments about the units of selection in general and genic selectionism in particular reveal two realist assumptions: (1) for any selection process, there is a uniquely correct identification of the operative selective forces and the level at which each impinges; and (2) selective forces must satisfy the Pareto-style requirement of probabilistic causation. I argue that both assumptions are false; (...) we must temper realism about the force of selection and revise the way we think about probabilistic causation. (shrink)

Edward Erwin's clear analysis addresses some of the fundamental questions on behavior therapy that remained in 1978, when this book was first published.

Based on the results of open ended interviews with managers in a variety of organizational positions, moral questions encountered in everyday managerial life are described. These involve transactions with employees, peers and superiors, customers, suppliers and other stakeholders. It is suggested that managers identify transactions as involving personal moral concern when they believe that a moral standard has a bearing on the situation and when they experience themselves as having the power to affect the transaction. This is the first in (...) a research series of three papers. (shrink)

Traditional approaches in philosophy of biology focus attention on biological concepts, explanations, and theories, on evidential support and inter-theoretical relations. Newer approaches shift attention from concepts to conceptual practices, from theories to practices of theorizing, and from theoretical reduction to reductive retooling. In this article, I describe the shift from theory-focused to practice-centered philosophy of science and explain how it is leading philosophers to abandon fundamentalist assumptions associated with traditional approaches in philosophy of science and to embrace scientific pluralism. This (...) article comes in three parts, each illustrating the shift from theory-focused to practice-centered epistemology. The first illustration shows how shifting philosophical attention to conceptual practice reveals how molecular biologists succeed in identifying coherent causal strands within systems of bewildering complexity. The second illustration suggests that analyzing how a multiplicity of alternative models function in practice provides an illuminating approach for understanding the nature of theoretical knowledge in evolutionary biology. The third illustration demonstrates how framing reductionism in terms of the reductive retooling of practice offers an informative perspective for understanding why putting DNA at the center of biological research has been incredibly productive throughout much of biology. Each illustration begins by describing how traditional theory-focused philosophical approaches are laden with fundamentalist assumptions and then proceeds to show that shifting attention to practice undermines these assumptions and motivates a philosophy of scientific pluralism. (shrink)

Post-foundational politics and democracy -- Agonism and democracy -- A typology of agonistic democracy -- Agonistic democracy and the question of institutions -- Agonistic democracy and the limits of popular participation -- Populism, representation, and the popular will -- Political liberalism, contingency and agonistic pluralism -- Liberalism, agonism, and democracy.

Growth in racial and ethnic diversity among public school P-12 students stands in stark contrast to the teaching population who tend to be monolingual, White females. Secondary social studies teachers defy demographic teacher trends, as they tend to be male, albeit White males who still are not representative of the students they teach. What is missing from the discourse of student–teacher imbalance however is discussion surrounding diversity among social studies teacher educators. The purpose of this study was to examine racial, (...) ethnic, and gender demographics for social studies teacher educators using a framework of critical teacher demography. Findings revealed that social studies teacher educators tend to reflect the population of social studies teachers with many being White males. Furthermore, social studies teacher educators tend to focus their research on concepts such as democratic citizenship with little focus dedicated to critical multicultural issues. The paucity of diversity in demographics and research is critical for social studies teacher educators to consider if we are to reflect multiculturalism in 21st century schools. (shrink)

Okasha claims at the outset of his book "Evolution and the Levels of Selection" that the Price equation lays bare the fundamentals underlying all selection phenomena. However, the thoroughness of his subsequent analysis of multi-level selection theories leads him to abandon his fundamentalist commitments. At critical points he invokes cost benefit analyses that sometimes favors the Price approach and sometimes the contextual approach, sometimes favors MLS1 and sometimes MLS2. And although he doesn’t acknowledge it, even the Price approach breaks down (...) into a family of alternative equations that parse the causes in different ways, none of which is uniquely correct and none of which achieves the ultimate isolation of effects due to what Okasha believes are the fundamental causes. I argue that his book provides good reason to re-conceive our understanding of evolutionary theorizing in terms of a toolbox view and to stop subjecting the analyses of evolutionary concepts to a universalist standard. (shrink)

Descriptions of how managers think about the moral questions that come up in their work lives are analyzed to draw out the moral assumptions to which they commonly refer. The moral standards thus derived are identified as (1) honesty in communication, (2) fair treatment, (3) special consideration, (4) fair competition, (5) organizational responsibility, (6) corporate social responsibility, and, (7) respect for law. It is observed that these normative standards assume the cultural form of social conventions but because managers invoke them (...) as largely private intuitions, their cultural status remains precarious and unclear. This is the second in a research series of three papers. (shrink)

Business ethics is once again a hot topic as examples of improper business practices that violate commonly accepted ethical norms are brought to our attention. With the increasing number of scandals business schools find themselves on the defensive in explaining what they are doing to help respond to the call to teach ‘‘more’’ business ethics. This paper focuses on two issues germane to business ethics teaching efforts: the ‘‘targeted output’’ goals of teaching business ethics and when in the curriculum business (...) ethics should be taught. (shrink)

This is a book grounded in the real ethical challenges of modern business practice, with a world-religious perspective so necessary in an era of globalization.

In this paper, I respond to D. Jacquette's paper, "Mally's Heresy and the Logic of Meinong's Object Theory" (History and Philosophy of Logic, 10 (1989): 1-14), in which it is claimed that Ernst Mally's distinction between two modes of predication, as it is employed in the theory of abstract objects, is reducible to, and analyzable in terms of, a single mode of predication plus the distinction between nuclear and extranuclear properties. The argument against Jacquette's claims consists of counterexamples to his (...) reductions and analyses. Reasons are offered for thinking that no such reduction/analysis of the kind Jacquette proposes could be successful. (shrink)

Susan Mills and John Beatty proposed a propensity interpretation of fitness (1979) to show that Darwinian explanations are not circular, but they did not address the critics' chief complaint that the principle of the survival of the fittest is either tautological or untestable. I show that the propensity interpretation cannot rescue the principle from the critics' charges. The critics, however, incorrectly assume that there is nothing more to Darwin's theory than the survival of the fittest. While Darwinians all scoff at (...) this assumption, they do not agree about what role, if any, this principle plays in Darwin's theory of natural selection. I argue that the principle has no place in Darwin's theory. His theory does include the idea that some organisms are fitter than others. But greater reproductive success is simply inferred from higher fitness. There is no reason to embody this inference in the form of a special principle of the survival of the fittest. (shrink)

This original book brings together some of the world's leading critics of economics orthodoxy to debate Lawson's contribution to the economics literature.

Leading philosophical accounts presume that Thomas H. Morgan’s transmission theory can be understood independently of experimental practices. Experimentation is taken to be relevant to confirming, rather than interpreting, the transmission theory. But the construction of Morgan’s theory went hand in hand with the reconstruction of the chief experimental object, the model organism Drosophila melanogaster . This raises an important question: when a theory is constructed to account for phenomena in carefully controlled laboratory settings, what knowledge, if any, indicates the theory’s (...) relevance to phenomena outside highly controlled settings? The answer, I argue, is found within the procedural knowledge embedded within laboratory practice. †To contact the author, please write to: Minnesota Center for Philosophy of Science, University of Minnesota, Department of Philosophy, 831 Heller Hall, 271 19th Ave., University of Minnesota, Minneapolis, MN 55455‐0310; e‐mail: [email protected]. (shrink)

Research in ethical AI has made strides in quantitative expression of ethical values such as fairness, transparency, and privacy. Here we contribute to this effort by proposing a new family of metrics called “decisional value scores” (DVS). DVSs are scores assigned to a system based on whether the decisions it makes meet or fail to meet a particular standard (either individually, in total, or as a ratio or average over decisions made). Advantages of DVS include greater discrimination capacity between types (...) of ethically relevant decisions and facilitation of ethical comparisons between decisions and decision-making systems, including across different modalities (for instance: human, machine, or coupled human–machine systems). After clarifying ambiguities in the concept of “decision” itself, including the question of how to individuate the decisions made by a system, we discuss the role and meaning of “decision” in common AI and machine learning approaches such as decision trees, neural networks, SVMs, and unsupervised classifiers. We then show how DVSs may be defined for several ethical values of interest, with an extended discussion of transparency. Finally, we explore how such metrics can be applied to real decision-making systems through two case studies: evaluations of LLMs for transparency; and evaluations of criminal risk assessment tools for utility, rights violations, fairness, and transparency. (shrink)

The integration of ideas, methods, and data from diverse disciplines has been a transformative force in science and higher education, attracting policy interventions, program innovations, financial resources, and talented people. Much energy has been invested in producing a new generation of scientists trained to work fluidly across disciplines, sectors, and research problems, yet the success of such investments has been difficult to measure. Using the Integrative Graduate Education and Research Training (IGERT) program of the U.S. National Science Foundation as a (...) strategic research site, we conducted an experiment to determine whether and how the process and products of research of IGERT-trained scientists differ from those of scientists trained in disciplinary graduate programs. Among scientists in the early years of graduate study we found substantial and consistent differences suggesting that interdisciplinary training improved the quality and process of research, but this pattern was equally strongly reversed among students in the latter years of graduate study. Using systematic observation and other data we suggest why this might be so, then discuss the implications of these results for the design and conduct of graduate education and research. (shrink)