Records of certain Government Departments known to have purchased scientific instruments from designated suppliers over long periods are potentially important sources of information on both instruments and their makers. The Office of Ordnance was one such Department. Investigation of its financial and administrative records has shown that the appointment ‘Mathematical Instrument Maker to his Majesty's Office of Ordnance’ brought the holder a substantial trade in instruments for drawing, surveying, and military purposes. Detailed entries in the Bill Books enable not (...) only types, quantities, and prices of instruments supplied to be determined, but also the purposes for which they were required. In many cases the actual users of the instruments are named, with their locations in Great Britain and overseas.The records of the Office of Ordnance are extensive, covering the mid-seventeenth to the mid-nineteenth century in over ten thousand volumes or bundles. This paper provides an introduction to what is available, and examines in particular the period 1748–1772 when George Adams senior was Mathematical Instrument Maker to this Office. It is shown that during this period Adams supplied over 1500 instruments, ranging from drawing pens to theodolites, detailed in 148 bills amounting to a total value of £2425. Some other well-known instrument makers, such as Thomas Wright, Benjamin Cole & Son, and Jesse Ramsden, were also occasional suppliers of instruments in the same period, while from 1765 onwards the records include bills for instruments purchased by the Office of Ordnance for the Royal Observatory from makers such as Dollond and Bird. The total number of instrument makers' bills located and examined in the period searched, including the 148 by Adams, was 166. In addition, though not within the scope of this paper it was observed that the records contain numerous bills by William Deane before, and by Jeremiah Sisson after, the period of Adams' appointment respectively. (shrink)

The human cognitive architecture consists of a set of largely independent modules associated with different brain regions. This book discusses in detail how these various modules can combine to produce behaviours as varied as driving a car and solving an algebraic equation.

Can the output of human cognition be predicted from the assumption that it is an optimal response to the information-processing demands of the environment? A methodology called rational analysis is described for deriving predictions about cognitive phenomena using optimization assumptions. The predictions flow from the statistical structure of the environment and not the assumed structure of the mind. Bayesian inference is used, assuming that people start with a weak prior model of the world which they integrate with experience to develop (...) stronger models of specific aspects of the world. Cognitive performance maximizes the difference between the expected gain and cost of mental effort. Memory performance can be predicted on the assumption that retrieval seeks a maximal trade-off between the probability of finding the relevant memories and the effort required to do so; in categorization performance there is a similar trade-off between accuracy in predicting object features and the cost of hypothesis formation; in casual inference the trade-off is between accuracy in predicting future events and the cost of hypothesis formation; and in problem solving it is between the probability of achieving goals and the cost of both external and mental problem-solving search. The implemention of these rational prescriptions in neurally plausible architecture is also discussed. (shrink)

In informal terms, abductive reasoning involves inferring the best or most plausible explanation from a given set of facts or data. It is a common occurrence in everyday life and crops up in such diverse places as medical diagnosis, scientific theory formation, accident investigation, language understanding, and jury deliberation. In recent years, it has become a popular and fruitful topic in artificial intelligence research. This volume breaks new ground in the scientific, philosophical, and technological study of abduction. It presents new (...) ideas about inferential and information-processing foundations for knowledge and certainty. The authors argue that knowledge arises from experience by processes of abductive inference, in contrast to the view that it arises non-inferentially, or that deduction and inductive generalization are enough to account for knowledge. Much AI research is hypothetical, so the importance of this book is that it reports key discoveries about abduction that have been made as a result of designing, building, testing, and analyzing actual working knowledge-based systems for medical diagnosis and other abductive tasks. The book tells the story of six generations of increasingly sophisticated generic abduction machines, RED-1, RED-2, PEIRCE, MDX2, TIPS, QUAWDS, and the discovery of reasoning strategies that make it computationally feasible to form well-justified composite explanatory hypotheses, despite the threat of combinatorial explosion. The final chapter argues that perception is logically abductive and presents a layered-abduction computational model of perceptual information processing. This book will be of great interest to researchers in AI, cognitive science, and philosophy of science. (shrink)

When I was an undergraduate in Oxford, we were taught economics almost as though it were a natural science. The subject matter of economics might be different from physics, but only in the way that the subject matter of chemistry or biology is different from physics. The actual results were presented to us as if they were scientific theories. So when we learned that savings equals investment, it was taught in the same tone of voice as one teaches that force (...) equals mass times acceleration. And we learned that rational entrepreneurs sell where marginal cost equals marginal revenue in the way that we once learned that bodies attract in a way that is directly proportional to the product of their mass and inversely proportional to the square of the distance between them. At no point was it ever suggested that the reality described by economic theory was dependent on human beliefs and other attitudes in a way that was totally unlike the reality described by physics or chemistry. Some years ago, when I published The Construction of Social Reality, I was aware that it had implications for the ontology of economics, but I was not aware that there had already been an important revival of the tradition of institutional economics. It would be an understatement to say that I welcome this interest in institutions; I enthusiastically support it. But I think that in the institutional literature there is still an unclarity about what exactly an institution is. What is the ontology, the mode of existence, of institutional reality? This article tries to add to this discussion. Economics as a subject matter, unlike physics or chemistry, is largely concerned with institutional facts. Facts about money and interest rates, exchange and employment, corporations and the balance of payments, form the very heart of the subject of economics. When Lionel Robbins, in a classic work, tells us that “Economics is a study of the disposal of scarce commodities,”2 he takes for granted a huge invisible institutional.... (shrink)

The claim that managers have a fiduciary duty to shareholders to run the corporation in their interests is generally supported by two arguments: that shareholders are owners of a corporation and that they have a contract or agency relation with management. The latter argument is used by Kenneth E. Goodpaster, who rejects a multi-fiduciary, stakeholder approach on the grounds that the shareholder-management relation is “ethically different” because of its fiduciary character. Both of these arguments provide an inadequate basis for the (...) fiduciary duties of officers and directors of corporations. The basis is to be found, rather, in considerations of public policy, a point that was established in the Dodd-Berle exchange of the 1930s. This conclusion also shows the inadequacy of Goodpaster’s solution to the so-called stakeholder paradox, and an alternative solution to the paradox is presented. (shrink)

The appropriate methodology for psychological research depends on whether one is studying mental algorithms or their implementation. Mental algorithms are abstract specifications of the steps taken by procedures that run in the mind. Implementational issues concern the speed and reliability of these procedures. The algorithmic level can be explored only by studying across-task variation. This contrasts with psychology's dominant methodology of looking for within-task generalities, which is appropriate only for studying implementational issues.The implementation-algorithm distinction is related to a number of (...) other “levels” considered in cognitive science. Its realization in Anderson's ACT theory of cognition is discussed. Research at the algorithmic level is more promising because it is hard to make further fundamental scientific progress at the implementational level with the methodologies available. Protocol data, which are appropriate only for algorithm-level theories, provide a richer source than data at the implementational level. Research at the algorithmic level will also yield more insight into fundamental properties of human knowledge because it is the level at which significant learning transitions are defined.The best way to study the algorithmic level is to look for differential learning outcomes in pedagogical experiments that manipulate instructional experience. This provides control and prediction in realistically complex learning situations. The intelligent tutoring paradigm provides a particularly fruitful way to implement such experiments.The implications of this analysis for the issue of modularity of mind, the status of language, research on human/computer interaction, and connectionist models are also examined. (shrink)

This presidential address to the Society for Business Ethics argues that business ethics rests upon the mistaken assumption thatteaching and research in the field ought to aim at the incorporation of ethics into managerial decision making. An alternative to this Moral Manager Model is a Moral Market Model, in which the aim is to develop markets that produce ethical outcomes. The differencesbetween the two models are discussed with reference to the themes of responsibility, participation, and relationships.

Much of cognitive psychology focuses on effects measured in tens of milliseconds while significant educational outcomes take tens of hours to achieve. The task of bridging this gap is analyzed in terms of Newell's (1990) bands of cognition—the Biological, Cognitive, Rational, and Social Bands. The 10 millisecond effects reside in his Biological Band while the significant learning outcomes reside in his Social Band. The paper assesses three theses: The Decomposition Thesis claims that learning occurring at the Social Band can be (...) reduced to learning occurring at lower bands. The Relevance Thesis claims that instructional outcomes at the Social Band can be improved by paying attention to cognition at the lower bands. The Modeling Thesis claims that cognitive modeling provides a basis for bridging between events on the small scale and desired outcomes on the large scale. The unit-task level, at the boundary of the Cognitive and Rational Bands, is useful for assessing these theses. There is good evidence for all three theses in efforts that bridge from the unit-task level to educational applications. While there is evidence for the Decomposition Thesis all the way down to the 10 millisecond level, more work needs to be done to establish the Relevance Thesis and particularly the Modeling Thesis at the lower levels. (shrink)

Throughout the history of the study of man there has been a fundamental opposition between those who believe that progress is to be made by a rigorous observation of man's actual behavior and those who believe that such observations are interesting only in so far as they reveal to us hidden and possibly fairly mysterious underlying laws that only partially and in distorted form reveal themselves to us in behavior. Freud, for example, is in the latter class, most of American (...) social science in the former. (shrink)

Employee governance, which includes employee ownership and employee participation in decision making, is regarded by manyas morally preferable to control of corporations by shareholders. However, employee governance is rare in advanced market economies due to its relative inefficiency compared with shareholder governance. Given this inefficiency, should employee governance be given up as an impractical ideal? This article contends that the debate over this question is hampered by an inadequate conception of employee governance that fails to take into account the difference (...) between employees and shareholders. It offers a different, more adequate conception of employee governance that recognizes a sense in which employees currently have some ownership rights. The argument for this conception of employee governance is built on an expanded understanding of the ownership of a firm. The article also suggests new strategies for strengthening the role of employees in corporate governance. (shrink)

In addressing the theme of this special issue of Business Ethics Quarterly on business ethics in the new millennium, I want to focusnot on business ethics as an academic field of study but rather on ethics in business. By ethics in business I mean the standards for ethical conduct that are generally recognized in business and the ways in which these standards are established. Ethics in business in this sense is, at least in part, what the field of business ethics (...) studies. (shrink)

Harnad and I agree that the Chinese Room Argument deals a knockout blow to Strong AI, but beyond that point we do not agree on much at all. So let's begin by pondering the implications of the Chinese Room. The Chinese Room shows that a system, me for example, could pass the Turing Test for understanding Chinese, for example, and could implement any program you like and still not understand a word of Chinese. Now, why? What does the genuine Chinese (...) speaker have that I in the Chinese Room do not have? The answer is obvious. I, in the Chinese room, am manipulating a bunch of formal symbols; but the Chinese speaker has more than symbols, he knows what they mean. That is, in addition to the syntax of Chinese, the genuine Chinese speaker has a semantics in the form of meaning, understanding, and mental contents generally. (shrink)

Pragmatism, the philosophy native to America, has once again grown to prominence in philosophical debate around the world. Today, the type of pragmatism that is proving to be of greatest value for fostering discussions with other worldviews is pragmatic naturalism. The fourteen provocative essays in this original collection are all by philosophers who describe themselves as pragmatic naturalists and who are active in the present-day revival of American pragmatism. Pragmatic naturalism, like all varieties of pragmatism, steers clear of the extreme (...) intellectualism too often found in philosophy. Pragmatic naturalism stresses that genuine inquiry must be conducted in a consistently empirical manner and be responsive to real human problems. It also contends that the sciences and their methodologies are superior to other modes of inquiry into the human environment. Despite the curious fact that pragmatism is often taken to be opposed to realism, the essays in this volume assert the interdependence of pragmatism with some type of realistic metaphysical stance. As such they advance the debates over the question of realism by uncovering and investigating the deepest assumptions running through recent Anglo-American philosophy. This excellent collection of high-quality essays on a resurgent school of American philosophy will be of interest to philosophers as well as scholars in the natural and social sciences. (shrink)

Some decisions result in cognitive consequences such as information gained and information lost. The focus of this study, however, is decisions with consequences that are partly or completely noncognitive. These decisions are typically referred to as ‘real-life decisions’. According to a common complaint, the challenges of real-life decision making cannot be met by decision theory. This complaint has at least two principal motives. One is the maximizing objection that to require agents to determine the optimal act under real-world constraints is (...) unrealistic. The other is the precision objection that the numeric requirements for applying decision theory are overly demanding for real-life decisions. Responses to both objections are aired in the History section of this chapter. The maximizing objection is addressed with reference to work by Weirich and Pollock, while the precision objection is countered via a proposal by Kyburg and another by Gärdenfors and Sahlin. However, the Current Research section urges a different response to the precision objection by introducing a comparative version of decision theory. Drawing on Chu and Halpern’s notion of generalized expected utility, this version of decision theory permits many choices to be based on merely comparative plausibilities and utilities. Finally, the Further Research section undertakes an open-ended exploration of three of the assumptions upon which this form of decision theory (and many others) is based: transitivity, independence, and plausibilistic decision rules. (shrink)

In their article, “Shrewd Bargaining on the Moral Frontier,” J. Gregory Dees and Peter C. Crampton challenge us with a puzzle about deception in bargaining. How can the practice of misleading others about our settlement preferences—the terms on which we are willing to come to an agreement —possibly be justified? On any standard ethical theory, they claim, Brer Rabbit's trick of professing fear of the briar patch in order to avoid being eaten by the fox would seem to be wrong, (...) and yet we read this tale to our children for their moral edification. The discussion by Dees and Crampton of this apparent inconsistency is penetrating, instructive, and well-informed. It is also a delight to read. (shrink)

As the second decade of the twenty-first century begins, political leaders across Western Europe have increasingly pointed to Muslims' bodily attitudes as indicative of their refusal to join the wider society, and as indicative of the failure of the society to sufficiently carry out programs of political socialization and assimilation. Among the targeted practices have been covering the hair or face , wearing loose, short trousers , refusing to shake hands with those of the opposite sex, and praying in the (...) street . Political actors have made both broader and more specific claims: that these badges of separation show that some Muslims refuse the rules of common social life, and that covering the hair or face shows that the oppression of women, either in particular cases or generally, remains part of Islamic culture. Civic "normality" is thereby portrayed against images of its opposite: people who by their bodily practices show themselves to be visibly and slavishly obedient, unmodern, and sectarian. I examine here how politically useful condemnations have been given the force of law in France. In particular, I trace a shift in the legal justifications for French laws and decisions targeting women's dress during the first decade of the 2000s. The shift, to be found in texts of court decisions and administrative practice, consists in moving from harm-based arguments to values-based ones. (shrink)

The ethical authority carried in the conventions of fairness and human well-being has been widely adopted under the idea of “moral economy,” forming an eclectic and interdisciplinary debate. Significant, though external to this debate, is a corpus of medieval thought which exhibits a fundamental interest in legitimate market protocols, and the political rights and obligations of agents in relation to the common good of the community. This article asserts the imperative status of a customary basis for understanding not just the (...) analytic version of moral economy but the legacy contained in what might be termed the “the moral economy of Aquinas.”. (shrink)

The idea that oxidative stress may underpin life history trade‐offs has become extremely popular. However, experimental support for the concept has proved equivocal. It has recently been suggested that this might be because of flaws in the design of existing studies. Here, we explore the background to the oxidative stress hypothesis and highlight some of the complexities in testing it. We conclude that the approach recently suggested to be least useful in this context (comparing reproducing to non‐reproducing animals) may in (...) fact be the most powerful. Moreover, suggested alternative approaches of limiting food supply or manipulating litter sizes have many complexities and problems. We suggest some useful alternative approaches that have not been previously advocated, particularly the study of individuals reproducing at greater parity later in life. Finally, the measures of oxidative stress and tissues that are analysed influence the experimental outcome. This suggests our conceptual model of the trade‐off is currently too simplistic, and that studies based on single or limited numbers of assays, or restricted to single tissues, whether they support or refute the theory, should be interpreted with great caution. (shrink)

Mark's Gospel is a narrative parable of the meaning of the life and death of Jesus which draws the reader into the personal engagement that takes place in interpretation and appropriation of the text in a life of discipleship.

The standard explanation for the origin of bilateral symmetry is that it conferred an advantage over radial symmetry for directed locomotion. However, recent developmental and phylogenetic studies suggest that bilateral symmetry may have evolved in a sessile benthic animal, predating the origin of directed locomotion. An evolutionarily feasible alternative explanation is that bilateral symmetry evolved to improve the efficiency of internal circulation by affecting the compartmentalization of the gut and the location of major ciliary tracts. This functional design principle is (...) illustrated best by the phylum Cnidaria where symmetry varies from radial to tetraradial, biradial and bilateral. In the Cnidaria, bilateral symmetry is manifest most strongly in the internal anatomy and the disposition of ciliary tracts. Furthermore, the bilaterally symmetrical Cnidaria are typically sessile and, in those bilaterally symmetrical cnidarians that undergo directed locomotion, the secondary body axis does not bear a consistent orientation to the direction of locomotion as it typically does in Bilateria. Within the Cnidaria, the hypothesized advantage of bilateral symmetry for internal circulation can be tested by experimental analysis and computer modeling of fluid mechanics. The developmental evolution of symmetry within the Cnidaria can be further explored through comparative gene expression studies among species whose symmetry varies. BioEssays 27:1174–1180, 2005. © 2005 Wiley Periodicals, Inc. (shrink)

SummaryDuring famines females generally have a mortality advantage relative to males, and the highest levels of mortality occur in the very young and the elderly. One popular hypothesis is that the sex differential in mortality may reflect the greater body fatness combined with lower metabolism of females, which may also underpin the age-related patterns of mortality among adults. This study evaluated the ‘body fat’ hypothesis using a previously published and validated mathematical model of survival during total starvation. The model shows (...) that at a given body weight females would indeed be expected to survive considerably longer than males in the absence of food. At a mass of 70 kg for example a female aged 30 would survive for 144 days compared with life expectancy of only 95 days for a male of the same age and weight. This effect is contributed to by both the higher body fatness and lower metabolism of the females at a given body weight. However, females are generally smaller than males and in addition to a sex effect there was also a major effect of body size – heavier individuals survive longer. When this body size effect was removed by considering survival in relation to BMI the sex effect was much reduced, and could be offset by a relatively small difference in pre-famine BMI between the sexes. Nevertheless, combining these predictions with observed mean BMIs of males and females across 48 countries at the low end of the obesity spectrum suggests that in the complete absence of food females would survive on average about 40% longer than males. The energy balance model also predicted that older adult individuals should survive much longer than younger adult individuals, by virtue of their lower resting metabolic rates and lower activity levels. Observations of the female survival advantage in multiple famines span a much wider range than the model prediction. This suggests in some famines body fatness may be a significant factor influencing the mortality differential between the sexes, but in other famines other factors are likely to be more important. Moreover, the pattern of mortality in relation to age is completely opposite that predicted. These data emphasize the complex nature of famine mortality and suggest that a simple model of energy utilization alone is inadequate to explain the major aspects of this phenomenon. (shrink)

This paper revisits the Pinto case not merely for the purpose of demythologizing the case, but as an opportunity to examine the broader issue of the logic of blame, the ascription of legal and moral responsibility. Three issues are addressed in the contexts of fault and liability in tort, criminal liability and product liability: 1) To what extent can judgments of moral wrongdoing or blame be inferred from legal judgments? 2) What are the strengths and weaknesses of attempting to model (...) moral arguments upon legal ones? and, 3) What is the nature and role of judgments of risk evaluation in legal and moral judgments? (shrink)