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)

This article presents a sketch of a theory of action. It does so by locating the relation of intention to action -vithin a general theory of Intentionality. It introduces a distinction between ptiorintentions and intentions in actions; the concept of the experience of acting; and the thesis that both prior intentions and intentions in action are causally self-referential. Each of these is independently motivated, but together they allow suggested solutions to several outstanding problems within action theory (deviant causal chains, the (...) accordion effect, basic actions, etc.); the demonstration of striking similarities between the logical structure of intentional action and the logical structure of perception; and the construction of an account of simple actions. A successfully performed intentional action characteristically consists of an intention in action together with the bodily movement or state of the agent which is its condition of satisfaction and which is caused by it. The account is extended to complex actions. (shrink)

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)

I have argued in a number of writings[1] that the philosophical part (though not the neurobiological part) of the traditional mind-body problem has a fairly simple and obvious solution: All of our mental phenomena are caused by lower level neuronal processes in the brain and are themselves realized in the brain as higher level, or system, features. The form of causation is.

The problem of free will arises because of the conflict between two inconsistent impulses, the experience of freedom and the conviction of determinism. Perhaps we can resolve these by examining neurobiological correlates of the experience of freedom. If free will is not to be an illusion, it must have a corresponding neurobiological reality. An explanation of this issue leads us to an account of rationality and the self, as well as how consciousness can move bodies at all. I explore two (...) hypotheses. On the first, freedom is a complete illusion. On the second, it is not an illusion, and there is a corresponding indeterminism at the neurobiological level. This can only occur if there is in fact a quantum mechanical element in the fundamental neurobiology of consciousness. (shrink)

A concise, reader-friendly overview of pragmatism, the most influential school of American philosophical thought.

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.

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 this paper Lucas suggests that many of his critics have not read carefully neither his exposition nor Penrose’s one, so they seek to refute arguments they never proposed. Therefore he offers a brief history of the Gödelian argument put forward by Gödel, Penrose and Lucas itself: Gödel argued indeed that either mathematics is incompletable – that is axioms can never be comprised in a finite rule and so human mind surpasses the power of any finite machine – or there (...) exist absolutely unsolvable diophantine problems, and he suggest that the second disjunct is untenable; on the other side, Penrose proposed an argument similar to Lucas’ one but making use of Turing’s theorem. Finally Lucas exposes again his argument and considers some of the most important objections to it. (shrink)

Technologies can range from the simplest of shelters to keep us warm and dry, to the most complex bioengineering interventions. In this technologically mediated world we now inhabit, there is a growing need for human beings, and particularly young people, to be more critically involved in the discourse surrounding technology. In order to achieve a truly democratic world, any tensions or confusions between human beings, their environment, and their technologies must be resolved. Only then will people become empowered to improve (...) their world in a creative, sensitive, informed and above all, sustainable fashion. This collection offers a solid basis for defining this new technological literacy by bringing together theoretical work that ranges from philosophy, design, and pedagogy. (shrink)

We studied collaborative skill acquisition in a dynamic setting with the game Co-op Space Fortress. While gaining expertise, the majority of subjects became increasingly consistent in the role they adopted without being able to communicate. Moreover, they acted in anticipation of the future task state. We constructed a collaborative skill acquisition model in the cognitive architecture ACT-R that reproduced subject skill acquisition trajectory. It modeled role adoption through reinforcement learning and predictive processes through motion extrapolation and learned relevant control parameters (...) using both a reinforcement learning procedure and a new to ACT-R supervised learning procedure. This is the first integrated cognitive model of collaborative skill acquisition and, as such, gives us valuable insights into the multiple cognitive processes that are involved in learning to collaborate. (shrink)

Multi-voxel pattern recognition techniques combined with Hidden Markov models can be used to discover the mental states that people go through in performing a task. The combined method identifies both the mental states and how their durations vary with experimental conditions. We apply this method to a task where participants solve novel mathematical problems. We identify four states in the solution of these problems: Encoding, Planning, Solving, and Respond. The method allows us to interpret what participants are doing on individual (...) problem-solving trials. The duration of the planning state varies on a trial-to-trial basis with novelty of the problem. The duration of solution stage similarly varies with the amount of computation needed to produce a solution once a plan is devised. The response stage similarly varies with the complexity of the answer produced. In addition, we identified a number of effects that ran counter to a prior model of the task. Thus, we were able to decompose the overall problem-solving time into estimates of its components and in way that serves to guide theory. (shrink)

Llull and Leibniz both subscribed to conceptual atomism: the belief that the majority of concepts are compounds constructed from a relatively small number of primitive concepts. Llull worked out techniques for finding the logically possible combinations of his primitives, but Leibniz criticized Llull’s execution of these techniques. This article argues that Leibniz was right about things being more complicated than Llull thought but that he was wrong about the details. The paper attempts to correct these details.

I agree with much of Habermas's article ?The Language Game of Responsible Agency and the Problem of Free Will,? but concentrate on disagreements. (i) He is wrong to think the language game of neuroscience is somehow at odds with the language game of rational intentionality. I argue that they give different levels of description of the same system. He also has too narrow a conception of contemporary neurobiological research. (ii) He is mistaken in thinking there is a ?performative contradiction? in (...) engaging in research that presupposes free will in order to disprove free will. (iii) His ?epistemic dualism? is irrelevant to the issue. (iv) He has some misconceptions about the world in general, especially about ?downward causation.? He seems to think that the physical world is deterministic. It is not. Quantum indeterminacy pervades the entire universe. We have the illusion of determinism because in some systems the quantum indeterminacies cancel out at the macro level. Is the brain a deterministic system? Right now we do not know. (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)

An experiment was performed to investigate the effects of practice and spacing on retention of Japanese–English vocabulary paired associates. The relative benefit of spacing increased with increased practice and with longer retention intervals. Data were fitted with an activation‐based memory model, which proposes that each time an item is practiced it receives an increment of strength but that these increments decay as a power function of time. The rate of decay for each presentation depended on the activation at the time (...) of the presentation. This mechanism limits long‐term benefits from further practice at higher levels of activation and produces the spacing effect and its observed interactions with practice and retention interval. The model was compared with another model of the spacing effect (Raaijmakers, 2003) and was fit to some results from the literature on spacing and memory. (shrink)

In order to understand the way in which the results of a study of business ethics could enter into the actual conduct of business, I formulate and examine five models of the role of the manager which can be found in the literature of management theory. These I call the engineering model, the economic model, the management of values model, the formal organization model, and the political model. While none of these models is wholly adequate, each provides important theoretical insights (...) into the relevance of ethics to management decision making which can be of use in the examination of specific cases. (shrink)

The central intellectual fact of the present era is that knowledge grows. This growth of knowledge is quietly transforming philosophy, making it possible to do a new kind of philosophy. With the abandonment of the epistemic bias in the subject, such a philosophy can go far beyond anything imagined by the philosophy of a half century ago. It begins, not with skepticism, but with what we know about the real world. It begins with such facts as those stated by the (...) atomic theory of matter and the evolutionary theory of biology, as well as such “common sense” facts as that we are all conscious, that we all really do have intentional mental states, that we form social groups and create institutional facts. Such a philosophy is theoretical, comprehensive, systematic, and universal in subject matter. (shrink)

In the United States, interest in urban agriculture has grown dramatically. While community gardens have sprouted across the landscape, home food gardens—arguably an ever-present, more durable form of urban agriculture—have been overlooked, understudied, and unsupported by government agencies, non-governmental organizations, and academics. In part a response to the invisibility of home gardens, this paper is a manifesto for their study in the Global North. It seeks to develop a multi-scalar and multidisciplinary research framework that acknowledges the garden’s social and ecological (...) or material dimensions. Given the lack of existing research, we draw on the more extensive literature on home gardens in the South and community gardens in the North to develop a set of hypotheses about the social-ecological effects of urban home food gardens in the North. These gardens, we hypothesize, contribute to food security, community development, cultural reproduction, and resilience at multiple scales; conserve agrobiodiversity; and support urban biodiversity. They may also have negative ecological effects, such as stormwater nutrient loading. Because of the entanglement of the social and the ecological or material in the garden, we review three theoretical perspectives—social ecological systems theory, actor-network theory, and assemblage theory—that have been or could be applied to the multi-scalar and multidisciplinary study of the garden. We also review sampling and analytic methods for conducting home garden research. The paper concludes with a discussion of opportunities to extend the research agenda beyond descriptive analysis, the primary focus of garden research to date. (shrink)

Strict finitism is a minority view in the philosophy of mathematics. In this paper, we develop a strict finite axiomatic system for geometric constructions in which only constructions that are executable by simple tools in a small number of steps are permitted. We aim to demonstrate that as far as the applications of synthetic geometry to real-world constructions are concerned, there are viable strict finite alternatives to classical geometry where by one can prove analogs to fundamental results in classical geometry. (...) We consider this as one of many early steps investigating the extent to which strict finite foundations can be developed for the application of mathematics to the real-world. (shrink)

The focus of this study is cognitive choice: the selection of one cognitive option (a hypothesis, a theory, or an axiom, for instance) rather than another. The study proposes that cognitive choice should be based on the plausibilities of states posited by rival cognitive options and the utilities of these options' information outcomes. The proposal introduces a form of decision theory that is novel because comparative; it permits many choices among cognitive options to be based on merely comparative plausibilities and (...) utilities. This form of decision theory intersects with recommendations by advocates of decision theory for cognitive choice, on the one hand, and defenders of comparative evaluation of scientific hypotheses and theories, on the other. But it differs from prior decision-theoretic proposals because it requires no more than minimal precision in specifying plausibilities and utilities. And it differs from comparative proposals because none has shown how comparative evaluations can be carried out within a decision-theoretic framework. (shrink)

The problem of a relativistic spin-1/2 particle scattering from a step potential is solved within the theoretical framework of relativistic dynamics. This treatment avoids the Klein paradox. An experiment for testing the theory is suggested.

This essay briefly describes a few of the problems associated with using personhood language to defend the right to life of the pre‐implantation embryo. Arguing that an immaterial soul explains the personal identity of an embryo is problematic for many people because there is no apparent spiritual activity in the unborn. While some scholars argue that the embryo has the potential to act as an adult person and thus should be protected from harm, others contend that potentiality alone is insufficient (...) reason to ascribe special moral worth to the embryo in utero. For Thomas Aquinas, the soul is not only the life‐principle that organizes the human body, but it is also that by which the human being thinks and wills. By making suitable corrections to Aristotle's hylomorphic depiction of the soul–body relation, I suggest that a rational soul must be present from the moment of conception and that it is at the service of the person. What is of critical importance here is to accept that a human being is present from the moment of conception, something the vast majority of embryologists maintain, notwithstanding the inveiglement of those who state that the pre‐implantation blastocyst is simply a disorganized clump of cells. (shrink)

Implicit knowledge is perhaps better understood as latent knowledge so that it is readily apparent that it contrasts with explicit knowledge in terms of the form of the knowledge representation, rather than by definition in terms of consciousness or awareness. We argue that as a practical matter any definition of the distinction between implicit and explicit knowledge further involves the notion of control.

After John Dewey, Addison W. Moore was recognized as the chief spokesman for the instrumentalist version of pragmatism. Never before available, this complete collection of Moore's work contains dozens of philosophical articles, essays, book reviews, writings by other philosophers, and reviews of his work, together with his book, Pragmatism and its Critics (1910).

Perturbations of quantum systems ranging from oscillators to fields can be either continuous or discontinuous functions of the coupling. The system under consideration is the familiar harmonic oscillator in one degree of freedom. Previous studies have shown that when the harmonic oscillator is subjected to a perturbation with a power law singularity, a permanent change in the system characteristics is observed for a specific range of power law values. The introduction of a logarithmic singularity into the power law potential fine (...) tunes the singularity power. (shrink)

This paper addresses what some view as a progressive and decades-long devaluing of the liberal arts in our educational institutions and society at large. It draws attention to symptoms of this trend and possible contributing factors, identifies benefits commonly attributed to the liberal arts, and then shows how insights from recent research on neuroplasticity provide good reason to believe that a traditional liberal education has positive effects on a person's brain. The paper supports the thesis that well-designed liberal arts courses (...) can literally transform students' minds and lives as a result of unique and synergistic brain processes activated and strengthened by the leaming experiences such courses provide. It finishes with recommendations to help reinvigorate and promote the value of liberal education. (shrink)