It is often assumed that engaging in a one‐on‐one dialogue with a tutor is more effective than listening to a lecture or reading a text. Although earlier experiments have not always supported this hypothesis, this may be due in part to allowing the tutors to cover different content than the noninteractive instruction. In 7 experiments, we tested the interaction hypothesis under the constraint that (a) all students covered the same content during instruction, (b) the task domain was qualitative physics, (c) (...) the instruction was in natural language as opposed to mathematical or other formal languages, and (d) the instruction conformed with a widely observed pattern in human tutoring: Graesser, Person, and Magliano's 5‐step frame. In the experiments, we compared 2 kinds of human tutoring (spoken and computer mediated) with 2 kinds of natural‐language‐based computer tutoring (Why2‐Atlas and Why2‐AutoTutor) and 3 control conditions that involved studying texts. The results depended on whether the students' preparation matched the content of the instruction. When novices (students who had not taken college physics) studied content that was written for intermediates (students who had taken college physics), then tutorial dialogue was reliably more beneficial than less interactive instruction, with large effect sizes. When novices studied material written for novices or intermediates studied material written for intermediates, then tutorial dialogue was not reliably more effective than the text‐based control conditions. (shrink)

Philosophical discussions of akrasia over the last fifteen years have focused on certain skeptical arguments which purport to question the possibility of a kind of akratic action which, following Pears, I call 'last ditch akrasia' (Pears [38]). An agent, succumbing to last ditch akrasia, freely, knowingly, and intentionally performs an action A against his better judgment that an incompatible action B is the better thing to do. (See Audi [1] for a detailed analysis.) Last ditch akrasia is not the only (...) kind that has been discussed. Some philosophers (Mele [32], Scaltas [48]) have been concerned with a more extreme form of akratic action, viz. one in which the agent not only judges that action B is best, but in addition intends (chooses, decides) to B. Some have even questioned whether freely acting against one's better judgment is sufficient for akratic action (Schiffer [49]: 201-3).1 Weaker types of akratic action have been discussed, though to a much lesser extent, since they are thought less problematic. Pears distinguishes last ditch akrasia from what he calls, "motivated irrational action" ([38]: 160). In cases of the latter, the akrates' rebellious desire infects his prior reasoning and thinking in such a way that his contemplated action seems to him warranted, and he acts accordingly. (For a taxonomy of cases of akratic action, see Rorty ([44])). Nor has the discussion of akrasia been restricted to akratic action. Philosophers have discussed whether akrasia can be exhibited in the formation of intentions, wants (See Audi [1]: 181-185), and beliefs (Mele [32]: ch. 8; Heil [19]). The primary focus in this paper is on last ditch akratic action. (shrink)

It is often assumed that engaging in a one‐on‐one dialogue with a tutor is more effective than listening to a lecture or reading a text. Although earlier experiments have not always supported this hypothesis, this may be due in part to allowing the tutors to cover different content than the noninteractive instruction. In 7 experiments, we tested the interaction hypothesis under the constraint that (a) all students covered the same content during instruction, (b) the task domain was qualitative physics, (c) (...) the instruction was in natural language as opposed to mathematical or other formal languages, and (d) the instruction conformed with a widely observed pattern in human tutoring: Graesser, Person, and Magliano's 5‐step frame. In the experiments, we compared 2 kinds of human tutoring (spoken and computer mediated) with 2 kinds of natural‐language‐based computer tutoring (Why2‐Atlas and Why2‐AutoTutor) and 3 control conditions that involved studying texts. The results depended on whether the students' preparation matched the content of the instruction. When novices (students who had not taken college physics) studied content that was written for intermediates (students who had taken college physics), then tutorial dialogue was reliably more beneficial than less interactive instruction, with large effect sizes. When novices studied material written for novices or intermediates studied material written for intermediates, then tutorial dialogue was not reliably more effective than the text‐based control conditions. (shrink)

What I have tried to do here is to provide a historical example of the interdependence between nature and culture that is one of the themes of this conference. To sum up: Scientific descriptions of the world emerge out of a complex interaction between nature, economic production, and the legal system. “Science” consists of a struggle among scientists, and between scientists and citizens, over what counts as “reality.” Lawmaking, in turn, consists of a struggle between people who want to allocate (...) access to resources for particular purposes, whether for commercial use, recreational use, or “natural” uses. Production, for its part, is a complicated function of technology, the sociology of user groups, the structure of legal entitlements to access, and the availability of resources. Nature, finally, is at any point, to no small degree, the product of past and present human impacts on it — which impacts, in turn, are determined in no small way by the sociology and the legal structure of the market.Each process takes place in continual conversation with all the others. As John Muir put it, “When we try to pick out anything by itself, we find it hitched to everything else in the universe.”45 Historically, resource managers have gotten into trouble when they have unconsciously assumed that such is not the case — yet such, assumptions are powerful because they are made instinctively, unthinkingly, at the level of people's basic understanding of the world and their place in it. Lots of them persist.On the other hand, in a few experimental cases in the United States and Canada where government and users have shared power and responsibility for resources management, including long-range planning for recovery and enhancement, here have been some notable improvements. The strategy goes under the name of “co-management” and involves negotiated agreements for shared decision-making between central authority and local groups. Typically, both government and industry resist such arrangements because they involve restructuring the power relations between different sectors in the industry; the result is that the few experiments in co-management that we have seen in the United States have come in areas, typically fisheries and wildlife, where the resource is in serious crisis and all of the parties to the agreement have had to abandon the positions they held previously.Examples of successful co-management regimes include those among American tribes in the Pacific Northwest, among commercial salmon fishers in Alaska, and in a project to rehabilitate the clam industry in New Jersey. Government employees and local groups share responsibility for gathering scientific data about the resources, for developing plans to manage them, and for enforcing regulations. Successful experiments at co-management seem to generate better scientific data about their resources than traditional management regimes do; they significantly reduce enforcement costs; and they enhance the economic power of the resource users. Most importantly, they nurture among the user groups a sense of control over their own destinies, and a willingness to share both costs and benefits of managing the resources rationally and to develop lasting, stable mechanisms for conflict resolution. The process is both democratic and ecologically rational. The key is to link the day-to-day work of producers to their long-range interests as residents in their communities and as working parts of the ecological systems in which they live.45At a minimum, it is clear that objective certainty about the state of the resources or the likely effect of whatever regulations we do impose is simply not attainable. This is partly because of the important role that random shocks play in the environment (and should play in our thinking about it), and also because of the sheer complexity of the system in which we are embedded. There will always be something that even the most complete model leaves out; and in any event the total system of ecology, production, and management will change every time something changes in any part of it.The policy lesson to be derived from all of this, finally, is that what we ought to sustain when we approach conservation problems is not the size of a particular resource, or even the prosperity of a particular harvesting group, but the long-term health of the interaction between nature, the economy, and the political system. We can recognize that the balance of the system, our attempted insurance against an uncertain future, democracy among user groups, and our moral duty to avoid extinguishing species — all of these things being difficult to quantify — do play integral roles in the conversation between nature and humankind, and perhaps more significant roles than the more objective measures to which we usually look for guidance. We can recognize, as John Muir did, that because everything in the universe is hitched to everything else, every step we take will change the total system in some way. When we make choices, then, we can keep an eye on what kind of conversation we want to have with the rest of Creation and make our choices accordingly. *** DIRECT SUPPORT *** A8402064 00014 *** DIRECT SUPPORT *** A8402064 00015. (shrink)

Pope John Paul II promulgated his first major social encyclical, Laborem Exercens (“On Human Work”), in September 1981. The encyclical, evoked many favorable reactions, even from Marxists. One such writer even argued that on social issues at least, John Paul II stands as “a sturdy and reliable ally.” The Pope often speaks in categories more familiar to Marxists than to Catholics. Another commentator even indicated doubts whether U.S. Catholics realize the importance of the encyclical because “The pope's concerns are the (...) concerns of Marx, his categories and history are those of Marx.” Yet, the Pope seems to identify Marxism with Marxist-Leninism. (shrink)

Human skin is the one authentic criterion of the universe which philosophers recognize when they appraise knowledge under their professional rubric, epistemology. By and large—except for a few of the great Critics and Sceptics—they view knowledge as a capacity, attribute, possession, or other mysterious inner quality of a “knower”; they view this knower as residing in or at a “body”; they view the body as cut off from the rest of the universe by a “skin”; all of which holds for (...) philosophizing physicists and physiologists even as for the professionals of the arcanum itself. If this assertion seems crude, one may recall that there are times when a bit of crudity is a fair physic for an inflamed subtlety. In the case before us the factual crudity lies in the use of “skin” for a criterion, not in our calling attention to the fact. The “skin” that is so used is, indeed, that of ancient anatomical schematism, unaffected by the transformation of understanding which modern physiological research has brought about. Yet if philosophers cease thus crudely to employ it, all their issues of epistemology will vanish, and the very type of attack they make on cognition will be discredited; whereupon the task of determining the status of knowledge itself will pass from their hands to those of the scientists who have taken over so many regions of philosophical arrogation in the past. This is what I propose here to show. (shrink)

Marx spent his life propagating ideas, Yet in theory he treated ideas as mere reflections of economic situations. The article takes a closer look at the young marx's views and concludes that marx recognized the importance of ideas where they 1) express the real needs of the people, 2) lead to effective action, And 3) correspond to conditions which permit their realization.

With over 60,000 copies in print since its original publication in 1984, Ethics has served numerous generations of students as a classic introduction to philosophical ethics from a Christian perspective. Over the years the philosophical landscape has changed somewhat, and in this new edition Arthur Holmes adjusts the argument and information throughout, completely rewriting the earlier chapter on virtue ethics and adding a new chapter on the moral agent. The book addresses the questions: What is good? What is right? (...) How can we know? In doing so it also surveys a variety of approaches to ethics, including cultural relativism, emotivism, ethical egoism and utilitarianism--all with an acknowledgment of the new postmodern environment. (shrink)

Whitehead’s rejection of a coercive divine lawgiver is well known, but the underlying ethic which led him in that direction needs to be examined. Arguing that he is an ethical naturalist with an aesthetic theory of value, and an act utilitarian, I find that this gives priority to eros over agape, limits moral responsibility, and obscures the depth of moral evil.

Based on papers presented at a conference held by a subcommittee on Chinese thought attached to the Committee on Far Eastern Studies jointly sponsored by the American Council of Learned Societies and the Far Eastern Association. Includes bibliographies.