Anti-selection occurs when information asymmetry exists between insurers and applicants. When an applicant knows they are at high risk of loss, but the insurer does not, the applicant may try to use this knowledge differential to secure insurance at a lower premium that does not match risk.

Nāgārjuna contends that the doctrine of Pratītyasamutpāda , properly understood, constitutes the philosophical basis for the rejection and avoidance of all metaphysical theories and concepts . The companion doctrine of "śūnyatā" constitutes the denial of metaphysical realism but does not imply an anti-realist, conventionalist view of reality . "Pratītyasamutpāda," the true doctrine or, literally, "the exact or real nature of the case," is really two-sided: it is a "causal" principle explaining the origin of all that exists, and a semantic principle (...) concerning the mutual dependency of concepts and beliefs in both the systematic and historically contingent sense. The latter implies a pragmatic approach to meaning. (shrink)

We prove a finite model theorem and infinitary completeness result for the propositional -calculus. The construction establishes a link between finite model theorems for propositional program logics and the theory of well-quasi-orders.

According to many critics, Descartes argued in a circle when he presumed to base the certainty (and thus knowledge) of propositions that fulfill his epistemic criterion of being “clearly and distinctly perceived” on the demonstration that God exists and is not a deceiver. But his critics say, that demonstration, as he presented it, presupposed the validity of the same epistemic criterion. I critically examine two major strategies to dispel the appearance of circularity, two ways of interpreting Descartes’ argument.My approach shares (...) with the second strategy the contention that Descartes did adopt the principle that “whatever is clearly and distinctly perceived to be true is true,” prior to his consideration of the God question. Moreover, his demonstration of God’s existence and veracity made use of the principle. But my claim is that the knowledge of God’s existence and veracity is not used to validate the principle of clear and distinct perception (that would be unnecessary). It is used rather to defeat the sceptic’s argument that we cannot have any knowledge of the external, physical world. I proceed to present and explain Descartes’ argument centered around the thesis, “I cannot be certain that (r) any of my representational ideas of the external world are veridical, unless I am certain that (q), God exists and is not a deceiver.” That is, I prove why, for Descartes, (q) is necessary for (r). My discussion exposes some new facets to the principle of clear and distinct perception and reveals the fact that some familiar Cartesian distinctions that were not thought to be relevant to the problem of the Cartesian Circle are crucial to the solution of that problem. (shrink)

BackgroundThe Mental Capacity Act was enacted in 2007 in England and Wales, but the assessment of mental capacity still remains an area of professional concern. Doctors’ compliance with legal and professional standards is inconsistent, but the reasons for poor compliance are not well understood. This preliminary study investigates doctors’ experiences of and attitudes toward mental capacity assessment.MethodsThis is a descriptive, cross-sectional study where a two-domain, study-specific structured questionnaire was developed, piloted and digitally disseminated to doctors at differing career stages employed (...) in a large, multi-site National Health Service Trust in London over 4 months in 2018. Descriptive statistics and frequency tables adjusted for missing data were generated and secondary analysis was conducted.ResultsParticipants were predominantly UK trained, female and between the ages of 30 and 44 years. Less than half of the participants reported receiving formal MCAx training. Only one-third of the participants self-rated themselves as very competent or extremely competent. Self-reported MCA confidence was significantly affected by career stage with Consultants with over 10 years of experience reporting lowest confidence.ConclusionsThis study describes significant variation in practice by doctors and low self-confidence in the practice of MCAx. These results raise concerns that MCAx continues to be inconsistently performed by doctors despite appropriate awareness of the law and professional guidance on best practice. (shrink)

In spite of laws in many states regulating the nutritional content of foods and the availability of “junk food” and soda, a 2001 Surgeon General’s Report indicated that 15% to 20% of the nation’s children are overweight or obese. In areas that are predominately Hispanic and African American, the numbers rise to between 40% and 50%. Although there are continuing efforts to educate the adult population, many school systems and public health jurisdictions have had little impact on the rising numbers (...) of overweight and obese children. This session described the process of initiating a student-based, student driven approach to obesity, junk food, and diabetes and disease prevention.A need existed for a grassroots approach at the student level to raise awareness of increasing obesity rates and diabetes and other related diseases in the adolescent population. (shrink)

In spite of laws in many states regulating the nutritional content of foods and the availability of “junk food” and soda, a 2001 Surgeon General’s Report indicated that 15% to 20% of the nation’s children are overweight or obese. In areas that are predominately Hispanic and African American, the numbers rise to between 40% and 50%. Although there are continuing efforts to educate the adult population, many school systems and public health jurisdictions have had little impact on the rising numbers (...) of overweight and obese children. This session described the process of initiating a student-based, student driven approach to obesity, junk food, and diabetes and disease prevention.A need existed for a grassroots approach at the student level to raise awareness of increasing obesity rates and diabetes and other related diseases in the adolescent population. (shrink)

It is shown that over any countable first-order structure, IND programs with dictionaries accept exactly the Π 1 1 relations. This extends a result of Harel and Kozen 118) relating IND and Π 1 1 over countable structures with some coding power, and provides a computational analog of a result of Barwise et al. 108) relating the Π 1 1 relations on a countable structure to a certain family of inductively definable relations on the hereditarily finite sets over that structure.

In this paper we provide a psychological account of the nature and development of explanation. We propose that an explanation is an account that provides a conceptual framework for a phenomenon that leads to a feeling of understanding in the reader/hearer. The explanatory conceptual framework goes beyond the original phenomenon, integrates diverse aspects of the world, and shows how the original phenomenon follows from the framework. We propose that explanations in everyday life are judged on the criteria of empirical accuracy, (...) scope, consistency, simplicity, and plausibility. We conclude that explanations in science are evaluated by the same criteria, plus those of precision, formalisms, and fruitfulness. We discuss several types of explanation that are used in everyday life – causal/mechanical, functional, and intentional. We present evidence to show that young children produce explanations that have the same essential form as those used by adults. We also provide evidence that children use the same evaluation criteria as adults, but may not apply those additional criteria for the evaluation of explanations that are used by scientists. (shrink)

While Stephen Davies argues that a debate on cross-cultural aesthetics is possible if we adopt an attitude of mutual respect and forbearance, his fellow symposiasts shed light upon different aspects which merit a closer scrutiny in such a dialogue. Samer Akkach warns that an inclusivistic embrace of difference runs the risk of collapsing the very difference one sought to understand. Julie Nagam underscores that local knowledge carriers and/or the medium should be involved in such a cross-cultural exploration. Enrico Fongaro searches (...) for a way of experiencing cross-cultural art such that it can lead to a transformative experience Relatedly, Meilin Chinn uses the analogy of friendship to explore the edifying dimension of experiencing an art form. Lastly, John Powell studies whether Dickie’s Institutional Theory can be meaningfully used to identify works of art in Western and non-Western traditions. (shrink)

Did the Carthaginian cavalry general Maharbal really urge Hannibal to march on Rome after Cannae, and then comment bitterly Vincere sets, Hannibal; victoria uti nescis, when his leader refused? There are two main objections: Maharbal may not have been there, and anyway Cannae was too far away to justify such a march. The whole story has been seen as one of those well-known Roman historiographical inventions. But there may well be more to the story than that, illuminating both Hannibalic history (...) and some Roman historiographical techniques. (shrink)

Chad Hansen is one of the strongest proponents of the view that the important second chapter of Zhuangzi's Inner Chapters (The Qi Wu Lun) reveals Zhuangzi to be a relativistic sceptidst. Hansen argues that Zhuangzi is a sceptic because he is first and foremost a relativist. Hansen's argument is essentially that Zhuangzi's perspectivism, his belief that one's linguistic and conceptual perspective determines what one claims to know, makes him a thorough going relativist and sceptic. I agree that Zhuangzi is a (...) perspectivist, but disagree with Hansen's portrayal of him as a relativistic sceptic. I first show that there is an important ambiguity in Hansen's argument. I then proceed to argue that important passages in the Qi Wu Lun (in particular the butterfly dream passage,) reveal serious problems with Hansen's interpretation of Zhuangzi's philosophical stance, I maintain that Zhuangzi is neither a sceptic nor a perspectival relativist. He is rather a perspectival realist. (shrink)

This paper presents an analysis of the forms of response that scientists make when confronted with anomalous data. We postulate that there are seven ways in which an individual who currently holds a theory can respond to anomalous data: (1) ignore the data; (2) reject the data; (3) exclude the data from the domain of the current theory; (4) hold the data in abeyance; (5) reinterpret the data; (6) make peripheral changes to the current theory; or (7) change the theory. (...) We analyze psychological experiments and cases from the history of science to support this proposal. Implications for the philosophy of science are discussed. (shrink)

Most philosophers of science now believe that scientific data are theory laden, i.e., the evaluation of data is influenced by prior theoretical beliefs. Although there is historical and psychological evidence that is consistent with the theory-laden position, experimental evidence is needed to directly test whether prior beliefs influence the evaluation of scientific data. In a fully counterbalanced design, one group of subjects received evidence that dinosaurs were cold-blooded, and another group of subjects received evidence that dinosaurs were warm-blooded. The subjects (...) reported a strong belief in whichever theory they had read about. Then subjects were presented with a piece of data that supported one theory and contradicted the other theory. The identical piece of data was rated as more believable when it was consistent with the subject's theory than when it was inconsistent. These results provide clear support for the position that scientific data are theory laden. (shrink)

Many of the haemopoietic cell growth factors have now been purified to homogeneity and their structural genes cloned. Methods are also now available for obtaining pure populations of haemopoietic cells. The use of such cells, in combination with pure growth factors, has provided intriguing information about the biological activities and mode of action of the factors in faciliating survival, proliferation and differentiation of the haemopoietic cells.

This paper argues that the central philosophical movement in the complex history of Buddhism that originated with Siddhartha Gautama, the Buddha and carried on by Nāgārjuna (among other later Buddhist philosophers) shares some common themes with the pragmatic philosophy of John Dewey. These themes are the rejection of traditional metaphysics as definitive of philosophy, a return to the correct understanding of the nature of experience, and a particular view about the conduct and nature of philosophy. Dewey is used to illuminate (...) such controversial problems in the Buddhist tradition as why the Buddha is silent about metaphysical questions, what it means to say that everything is anitya, and how we are to understand Nāgārjuna's key concepts of prattyasamutpāda and únyatá. (shrink)

Nāgārjuna contends that the doctrine of Pratītyasamutpāda (dependent origination), properly understood, constitutes the philosophical basis for the rejection and avoidance of all metaphysical theories and concepts (including causation). The companion doctrine of "śūnyatā" constitutes the denial of metaphysical realism (or "essentialism") but does not imply an anti-realist, conventionalist view of reality (as Jay Garfield maintains). "Pratītyasamutpāda," the true doctrine or, literally, "the exact or real nature of the case," is really two-sided: it is (1) a "causal" principle explaining the origin (...) of all that exists, and (2) a semantic principle concerning the mutual dependency of concepts and beliefs in both the systematic and historically contingent sense. The latter implies a pragmatic approach to meaning. (shrink)

There is a considerable literature about causation. A great many investigators constantly employ the notion of causation in some form. But with the exception of a very few items, these investigators will find little of use in this literature.

In free and open source software (FOSS), computer code is made freely accessible and can be modified by anyone. It is a creative domain with many unique features; the FOSS mode of creativity has also influenced many aspects of contemporary cultural production. In this article we identify a number of fundamental but unresolved general issues in the study of creativity, then examine the potential for the study of FOSS to inform these topics. Archival studies of the genesis of FOSS projects, (...) coupled with laboratory studies detailing the psychological processes involved in software creation, can provide converging evidence on the nature of creativity in software design. Such a research program has broad implications both for theories of creativity and for real-world innovation in software and other forms of digital cultural production. (shrink)

As a student and collaborator of Louis Agassiz on the study of fishes, F. W. Putnam gave promise of becoming a leading ichthyologist with special interest in taxonomy generally and the Etheostomidae in particular. While he was noted briefly in these fields, contributed a number of minor papers, and aided in the posthumous publications of some of Agassiz's work on fishes, he neither reached his original goal nor completed his major projected works. For in 1874 he switched careers and was (...) appointed Curator of the Peabody Museum of American Archaeology and Ethnology at Harvard University, and is remembered today primarily as a founder of American archaeology rather than as a systematic ichthyologist. (shrink)

An account of the author's experience in Iraq, presents photographs and commentary that convey the terror and exhilaration of photojournalism in an age of embedded reporting.