How can we best understand the major debates and recent movements in contemporary empirical political theory? Is there a human nature on which we can construct scientific theories of political life? What is the role of culture in shaping any such nature? How objective and value-free can political theories be? These are only a few of the issues addressed by this collection of essays from a disparate group of contributors.

Four authors respond to James Rachels' article "Moral Philosophy and as a Subversive Activity.".

We analyze the logical form of the domain knowledge that grounds analogical inferences and generalizations from a single instance. The form of the assumptions which justify analogies is given schematically as the "determination rule", so called because it expresses the relation of one set of variables determining the values of another set. The determination relation is a logical generalization of the different types of dependency relations defined in database theory. Specifically, we define determination as a relation between schemata of first (...) order logic that have two kinds of free variables: (1) object variables and (2) what we call "polar" variables, which hold the place of truth values. Determination rules facilitate sound rule inference and valid conclusions projected by analogy from single instances, without implying what the conclusion should be prior to an inspection of the instance. They also provide a way to specify what information is sufficiently relevant to decide a question, prior to knowledge of the answer to the question. (shrink)

Economic models are founded in the idea of taking individuals' preferences as both known and given. This article explores the evolution of personal preferences, within a context of both entrepreneurial discovery and Objectivist philosophy. It begins by formalizing Ayn Rand's theory of Objectivism applied to human values, and continues by modeling preference changes similar to Schumpeter's theory of creative destruction—a process of self-discovery. Next the role of societal factors is examined in forming shared preference sets. Finally, the article describes how (...) the strength of human preferences is used to narrow choice sets in the presence of greater consumption options. (shrink)

This lavishly illustrated book highlights the conservation importance of congregatory animals species--those which gather in vast groups. It also focuses on the irreplaceability of the congregation sites which are able to support such large gatherings of animals, fish, or birds.

__Scientific Perspectives on Divine Action: Twenty Years of Challenge and Progress_ _is a collection of thirteen essays assessing the scholarly contributions to the _Scientific Perspectives on Divine Action_ series, which is comprised of five volumes resulting from international research conferences co-sponsored by the Vatican Observatory and the Center for Theology and the Natural Sciences between 1991 and 2000. The overarching goal of the series is to advance the engagement of constructive theology with the natural sciences with special attention to the (...) theme of divine action and to investigate the philosophical and theological elements within science. This volume is divided into three sections: In Section One, contributors review the history of the series and the development of new research methodology and discuss philosophical issues raised by the laws of nature and the limits of science; in Section Two, authors provide philosophical analysis of specific issues in the series; and in Section Three, contributors offer theological analyses of specific issues. The five volumes in the series include: _Quantum Cosmology and the Laws of Nature_ ; _Chaos and Complexity_ ; _Molecular and Evolutionary Biology_ ; _Neuroscience and the Person_ ; and _Quantum Mechanics _, and are distributed by University of Notre Dame Press. (shrink)