The focus of this paper is two-fold. First, similarities generated from six semantic models were compared to human ratings of paragraph similarity on two datasets—23 World Entertainment News Network paragraphs and 50 ABC newswire paragraphs. Contrary to findings on smaller textual units such as word associations (Griffiths, Tenenbaum, & Steyvers, 2007), our results suggest that when single paragraphs are compared, simple nonreductive models (word overlap and vector space) can provide better similarity estimates than more complex models (LSA, Topic Model, SpNMF, (...) and CSM). Second, various methods of corpus creation were explored to facilitate the semantic models’ similarity estimates. Removing numeric and single characters, and also truncating document length improved performance. Automated construction of smaller Wikipedia-based corpora proved to be very effective, even improving upon the performance of corpora that had been chosen for the domain. Model performance was further improved by augmenting corpora with dataset paragraphs. (shrink)

The aim of the present research was to develop a difficulty model for logical reasoning problems involving complex ordered arrays used in the Graduate Record Examination. The approach used involved breaking down the problems into their basic cognitive elements such as the complexity of the rules used, the number of mental models required to represent the problem, and question type. Weightings for these different elements were derived from two experimental studies and from the reasoning literature. Based on these weights, difficulty (...) models were developed which were then tested against new data. The models had excellent predictive validity and showed the relative influence of rule based factors and factors relating to the number of underlying models. Different difficulty models were needed for different question types, suggesting that people used a variety of approaches and, at a wider level, that both mental models and mental rules may be used in reasoning. (shrink)

Mazur & Booth's (1998) target article concerns basal and reciprocal relations between testosterone and dominance, and has its roots in Mazur's (1985; 1994) model of primate dominance-submissiveness interactions. Threats are exchanged in these interactions and a psychological stress-manipulation mechanism is suggested to operate, making sure that face-to-face dominance contests are usually resolved without aggression. In this commentary, a recent line of evidence from human research on the relation between testosterone, cortisol, and vigilant (dominant) and avoidant (submissive) responses to threatening “angry” (...) faces is discussed. Findings, to a certain extent, converge with Mazur & Booth's theorizing. However, the strongest relations have been found in subliminal exposure conditions, suggesting that biological instead of psychological mechanisms are involved. (shrink)

Identity, Morality, and Threat offers a critical examination of the social psychological processes that generate outgroup devaluation and ingroup glorification as the source of conflict. Daniel Rothbart and Karyna Korostelina bring together essays analyzing the causal relationship between escalating violence and opposing images of the Self and Other.

Progressive supranuclear palsy is a movement disorder with prominent tau neuropathology. Brain diseases with abnormal tau deposits are called tauopathies, the most common of which is Alzheimer's disease. Environmental causes of tauopathies include repetitive head trauma associated with some sports. To identify common genetic variation contributing to risk for tauopathies, we carried out a genome-wide association study of 1,114 individuals with PSP and 3,247 controls followed by a second stage in which we genotyped 1,051 cases and 3,560 controls for the (...) stage 1 SNPs that yielded P ≤ 10-3. We found significant previously unidentified signals associated with PSP risk at STX6, EIF2AK3 and MOBP. We confirmed two independent variants in MAPT affecting risk for PSP, one of which influences MAPT brain expression. The genes implicated encode proteins for vesicle-membrane fusion at the Golgi-endosomal interface, for the endoplasmic reticulum unfolded protein response and for a myelin structural component. © 2011 Nature America, Inc. All rights reserved. (shrink)

The paper attempts to provide a basis for exploring the continued relevance of Catholic social teaching to business ethics, byinterpreting the historic development of a Catholic work ethic and the traditions of Catholic social teaching in light of contemporary discussions of economic globalization, notably those of Robert Reich and Peter Drucker. The paper argues that the Catholic work ethic and the Church’s tradition of social teaching has evolved dynamically in response to the structural changes involved in the history of (...) modern economic development, and thus is well poised to speak to the ethical challenges implicit in the advent of a knowledge-based society. In order to test this thesis, the author sketches an approach to the ethical challenge of corporate downsizing that he believes illustrates the continued relevance of Catholic social teaching to business ethics. (shrink)

The University of Minnesota organized a conference ("Evolution and Public Education," December 5, 1981) to help clarify issues in the creation/evolution controversy and to examine arguments of the proponents of scientific creationism. This six-part book, a revised version of a resource manual compiled for the conference: (1) discusses the theory of evolution and its place in science education; (2) examines the creationist movement; (3) states the position of scientific creationists; (4) responds to creationists' arguments against evolution; (5) explores legal issues (...) in the controversy; and (6) provides some perspectives on attempts to treat the Genesis creation account as science. The fifth section, on legal issues, includes Judge Overton's decision striking down the Arkansas Creationism Act, as well as pieces of legislation which reveal the changing tactics of creationists, who first sought to ban the teaching of evolution in the 1920s, then sought equal time for biblical creationism in the late 1960s and early 1970s, and now seek a two-model approach to earth science/biology teaching (evolution as one model, scientific creationism as the other). A comprehensive bibliography lists most of the important works that directly address the controversy, as well as many publications on the philosophy of science and faith issues. (JN). (shrink)

In Corrupting Youth, Peter Euben explores the affinities between Socratic philosophy and Athenian democratic culture as a way to think about issues of politics and education, both ancient and modern. The book moves skillfully between antiquity and the present, from ancient to contemporary political theory, and from Athenian to American democracy. It draws together important recent work by political theorists with the views of classical scholars in ways that shine new light on significant theoretical debates such as those over (...) discourse ethics, rational choice, and political realism, and on political issues such as school vouchers and education reform. Euben not only argues for the generative capacity of classical texts and Athenian political thought, he demonstrates it by thinking with them to provide a framework for reflecting more deeply about socially divisive issues such as the war over the canon and the "politicization" of the university.Drawing on Aristophanes' Clouds, Sophocles' Antigone and Oedipus Tyrannos, and Plato's Apology of Socrates, Gorgias, and Protagoras, Euben develops a view of democratic political education. Arguing that Athenian democratic practices constituted a tradition of accountability and self-critique that Socrates expanded into a way of doing philosophy, Euben suggests a necessary reciprocity between political philosophy and radical democracy. By asking whether we can or should take "Socrates" out of the academy and put him back in front of a wider audience, Euben argues for anchoring contemporary higher education in appreciative yet skeptical encounter with the dramatic figure in Plato's dialogues. (shrink)

Platonic Noise brings classical and contemporary writings into conversation to enrich our experience of modern life and politics. Drawing on writers as diverse as Plato, Homer, Nietzsche, Borges, Don DeLillo, and Philip Roth, Peter Euben shows us the relevance of both popular literature and ancient Greek thought to current questions of loss, mourning, and democracy--all while arguing for the redeeming qualities of political and intellectual work and making an original case against presentism.Juxtaposing ancient and contemporary texts, politics, and culture, (...) Euben reflects on a remarkable range of recent issues and controversies. He discusses Stoic cosmopolitanism and globalization, takes a critical look at Nietzsche's own efforts to make the Greeks speak to the issues of his day, examines a Greek tragedy through Hannah Arendt's eyes, compares the role of comedy in ancient Athens and contemporary America, analyzes political theory as a reaction to an acute sense of loss, and considers questions of agency and morality.Platonic Noise makes a case for reading political theory and politics through literature. Working as much through example as through explicit argument, Euben casts the literary memory of Athenian democracy as a crucial cultural resource and a presence in contemporary political and theoretical debates. In so doing, he reasserts the moral value of what we used to call participatory democracy and the practical value of seeing ourselves with the help of insights from long-gone Greeks. (shrink)

Platonic Noise brings classical and contemporary writings into conversation to enrich our experience of modern life and politics. Drawing on writers as diverse as Plato, Homer, Nietzsche, Borges, Don DeLillo, and Philip Roth, Peter Euben shows us the relevance of both popular literature and ancient Greek thought to current questions of loss, mourning, and democracy--all while arguing for the redeeming qualities of political and intellectual work and making an original case against presentism. Juxtaposing ancient and contemporary texts, politics, and (...) culture, Euben reflects on a remarkable range of recent issues and controversies. He discusses Stoic cosmopolitanism and globalization, takes a critical look at Nietzsche's own efforts to make the Greeks speak to the issues of his day, examines a Greek tragedy through Hannah Arendt's eyes, compares the role of comedy in ancient Athens and contemporary America, analyzes political theory as a reaction to an acute sense of loss, and considers questions of agency and morality. Platonic Noise makes a case for reading political theory and politics through literature. Working as much through example as through explicit argument, Euben casts the literary memory of Athenian democracy as a crucial cultural resource and a presence in contemporary political and theoretical debates. In so doing, he reasserts the moral value of what we used to call participatory democracy and the practical value of seeing ourselves with the help of insights from long-gone Greeks. (shrink)

The EDPS Ethics Advisory Group (EAG) has carried out its work against the backdrop of two significant social-political moments: a growing interest in ethical issues, both in the public and in the private spheres and the imminent entry into force of the General Data Protection Regulation (GDPR) in May 2018. For some, this may nourish a perception that the work of the EAG represents a challenge to data protection professionals, particularly to lawyers in the field, as well as to companies (...) struggling to adapt their processes and routines to the requirements of the GDPR. What is the purpose of a report on digital ethics, if the GDPR already provides all regulatory requirements to protect European citizens with regard to the processing of their personal data? Does the existence of this EAG mean that a new normative ethics of data protection will be expected to fill regulatory gaps in data protection law with more flexible, and thus less easily enforceable ethical rules? Does the work of the EAG signal a weakening of the foundation of legal doctrine, such as the rule of law, the theory of justice, or the fundamental values supporting human rights, and a strengthening of a more cultural approach to data protection? Not at all. The reflections of the EAG contained in this report are not intended as the continuation of policy by other means. It neither supersedes nor supplements the law or the work of legal practitioners. Its aims and means are different. On the one hand, the report seeks to map and analyse current and future paradigm shifts which are characterised by a general shift from analogue experience of human life to a digital one. On the other hand, and in light of this shift, it seeks to re-evaluate our understanding of the fundamental values most crucial to the well-being of people, those taken for granted in a data-driven society and those most at risk. The objective of this report is thus not to generate definitive answers, nor to articulate new norms for present and future digital societies but to identify and describe the most crucial questions for the urgent conversation to come. This requires a conversation between legislators and data protection experts, but also society at large - because the issues identified in this report concern us all, not only as citizens but also as individuals. They concern us in our daily lives, whether at home or at work and there isn’t a place we could travel to where they would cease to concern us as members of the human species. (shrink)

This new edition of Baran and Davis's successful text provides a comprehensive, historically based, introduction to mass communication theory. Clearly written with examples, graphics, and other materials to illustrate key theories, this edition traces the emergence of two main bodies of mass communication theory: social, behavioral and critical, cultural. The authors emphasize that media theories are human creations that typically are intended to address specific problems or issues.

The formation of the segmentation pattern in Drosophila embryos provides an excellent model for investigating the process of pattern formation in multicellular organisms. Several genes required in an embryo for normal segmentation have been analyzed by classical and molecular genetic and morphological techniques. A detailed consideration of these results suggests that these segmentation genes are combinatorially involved in translating the positional identities of individual cells at an early stage in Drosophila development.