This book provides the reader with a detailed and captivating account of the story where, for the first time, physicists ventured into proposing a new force of nature beyond the four known ones - the electromagnetic, weak and strong forces, and gravitation - based entirely on the reanalysis of existing experimental data. Back in 1986, Ephraim Fischbach, Sam Aronson, Carrick Talmadge and their collaborators proposed a modification of Newton's Law of universal gravitation. Underlying this proposal were three tantalizing pieces of (...) evidence: 1) an energy dependence of the CP (particle-antiparticle and reflection symmetry) parameters, 2) differences between the measurements of G, the universal gravitational constant, in laboratories and in mineshafts, and 3) a reanalysis of the Eötvos experiment, which had previously been used to show that the gravitational mass of an object and its inertia mass were equal to approximately one part in a billion. The reanalysis revealed that, contrary to Galileo's position, the force of gravity was in fact very slightly different for different substances. The resulting Fifth Force hypothesis included this composition dependence and also added a small distance dependence to the inverse-square gravitational force. Over the next four years numerous experiments were performed to test the hypothesis. By 1990 there was overwhelming evidence that the Fifth Force, as initially proposed, did not exist. This book discusses how the Fifth Force hypothesis came to be proposed and how it went on to become a showcase of discovery, pursuit and justification in modern physics, prior to its demise. In this new and significantly expanded edition, the material from the first edition is complemented by two essays, one containing Fischbach's personal reminiscences of the proposal, and a second on the ongoing history and impact of the Fifth Force hypothesis from 1990 to the present. <. (shrink)

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.

Let me tell you what philosophy is about, then about how Sydney does it in its own special way. Does life have a meaning, and if so what is it? What can I be certain of, and how should I act when I am not certain? Why are the established truths of my tribe better than the primitive superstitions of your tribe? Why should I do as I’m told? Those are questions it’s easy to avoid, in the rush to acquire (...) goods and prestige. Even for many of a more serious outlook, they are questions easy to dismiss with excuses like “it’s all a matter of opinion” or “let’s get on with practical matters” or “they’re too hard”. They are questions that may be ignored, but they do not go away. They’re philosophical questions. There’s a right way to approach them – you read the writings of the classical and recent philosophers and consider carefully their arguments back and forth. There are many wrong ways to approach them, such as choosing at random among the ideas your parents or friends or gurus have, or ideas that feel good. Or you can just not bother. Sydney has a certain reputation for superficiality in this regard. A character in David Williamson’s Emerald City says “No-one in Sydney ever wastes time debating the meaning of life — it’s getting yourself a water frontage”, says If you have a Writers Festival or a conference on Happiness in Sydney, you don’t normally expect philosophers to be invited. Caroline Jones’ radio series, ‘The Search for Meaning’. (shrink)

Philosophers and others have often debated whether we have freewill: i.e. whether (in a sense I shall try to elucidate) our power to choose between X and Y is radically undetermined, so that if we choose X we yet might have chosen Y, and vice versa. My concern is not with that question but with a hypothetical one which arises from it: if we had such freewill, what implications, if any, would, that fact have for the sciences. My argument concentrates (...) on the social sciences, since the phenomena with which they deal inevitably involves human choice. (shrink)

In this collection of essays, Franklin I. Gamwell offers a defense of transcendental metaphysics, especially in its neoclassical form, and builds a case for its importance as a tool for addressing abiding problems in morality and philosophical theology-including talk about God, human fault, moral decision, and the relationship of politics and religious freedom. In Part I, Gamwell argues against Kant and a wide range of contemporary philosophers, for the validity of transcendental metaphysics designated in the strict sense, i.e., as (...) an explication of the possible as such or existence as such, as the most general features or conditions all possible things have in common. He engages with Aquinas, Schleiermacher, Augustine, and Niebuhr to argue that neoclassical metaphysics, for which the divine whole is itself temporal or forever self-surpassing, provides a more coherent account of God than does classical metaphysics, for which the divine whole is completely eternal. In Part II, Gamwell looks at transcendental metaphysics designated in the broad sense, i.e., as an explication of possible subjectivity as such, as the most general features or conditions all possible subjects have in common. In particular, he takes up the moral opportunity that humans are presented with, and argues that the moral law depends on a comprehensive good, that is, a good defined metaphysically in the strict sense. He then offers an extended discussion of the relation between transcendental metaphysics (in the broad sense) and the meaning of religious freedom and explores Ronald Dworkin's view of the relationship between democracy and religion, the question of whether religious activities are properly exempted from generally applicable laws, and the constitutional debate about national and states' rights. (shrink)

Quantity is the first category that Aristotle lists after substance. It has extraordinary epistemological clarity: "2+2=4" is the model of a self-evident and universally known truth. Continuous quantities such as the ratio of circumference to diameter of a circle are as clearly known as discrete ones. The theory that mathematics was "the science of quantity" was once the leading philosophy of mathematics. The article looks at puzzles in the classification and epistemology of quantity.

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.

It is common to think that, in making choices for others, we should consider their values. But do the current interests of people with dementia ever depend on what they used to value? Or do their interests depend solely on what matters to them from now on? Two approaches are especially prominent in the philosophical literature. Some believe that the capacity to value or significantly care about things bestows a certain standing on the person’s present perspective, making it inappropriate to (...) appeal to her former values until the person no longer has this capacity. Others hold that a person’s past attitudes can never affect what is good for him now. On the “Revision Model” I defend, we should ordinarily recognize a person’s current values as authoritative in defining a person’s interests, because these represent his most up-to-date revision of his earlier views. However, if a person has lost the ability to comprehend his former values, then we cannot treat his current perspective as a genuine revision, since he is not answerable for the fact that his values have changed. Having never truly revised those former values, we should recognize their enduring relevance in defining his interests, insofar as they remain relevant to his life. This, however, is consistent with recognizing that the person’s interests may also depend on some of his current values and concerns as well. (shrink)

One way of conceptualizing community engaged teaching is as a mode of teaching that directly foregrounds engaging communities who are experiencing particular social realities that are theorized and discussed in classroom settings. Tracing the trajectory of community engaged teaching from the pedagogical paradigm of civil rights era Freedom Schools to contemporary manifestations of their legacy, the author offers two narrative accounts. The first is an account of the emergence of Freedom Schools as quintessential examples of community engaged teaching that exemplify (...) the character and aims of public philosophy as social praxis. The second is an illustrative account of the lessons to be drawn from the Freedom Schools by all who aspire to pursue community engaged teaching in a manner that extends their legacy. Ironically, the racist deployment of the system of education served as the impetus for what took shape as the Freedom Summer's emphasis on radical, liberation‐oriented, and mutually transformative modes of community‐engaged teaching. (shrink)

Argues that morals and politics require on a metaphysical backing and proposes a neoclassical metaphysics.

Perspectivism in Science Perspectivism, or perspectival realism, has been discussed in philosophy for many centuries, but as a view about science, it is a twenty-first-century topic. Although it has taken many forms and even though there is no agreed definition, perspectivism at its heart uses a visual metaphor to help us understand the scope and … Continue reading Perspectivism in Science →.

The consistency of a second-order version of Morley’s Theorem on the number of countable models was proved in [EHMT23] with the aid of large cardinals. We here dispense with them.

Euphemistically named “pull-ups” are a visually engaging and increasingly engineeredsanitaryproduct designed to capture a market that less than one generation ago was toilet trained at the age of the girl pictured on the packaging.

This book presents an introduction to the principles of scientific naturalism, which holds that nature is a self-sufficient reality that can be explained by natural causes and laws. Franklin explores the implications of this worldview for our understanding of the world and the place of humanity within it. This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in (...) the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant. (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 lieu of an abstract, here is a brief excerpt of the content:The Incoherence of Determining Death by Neurological Criteria: A Commentary on Controversies in the Determination of Death, A White Paper by the President’s Council on Bioethics*Franklin G. Miller** (bio) and Robert D. Truog (bio)Traditionally the cessation of breathing and heart beat has marked the passage from life to death. Shortly after death was determined, the body became a cold corpse, suitable for burial or cremation. Two technological changes (...) in the second half of the twentieth century prompted calls for a new, or at least expanded, definition of death: the development of intensive care medicine, especially the use of mechanical ventilators, and the advent of successful transplantation of vital organs. Patients with profound neurological damage, leaving them incapable of breathing on their own and in an irreversible coma, could be maintained for some period of time with the aid of mechanical ventilation. The situation of these patients posed two ethical questions. Is it appropriate to stop life-sustaining treatment? If so, is it acceptable to retrieve vital organs for transplantation to save the lives of others before stopping treatment?In 1968, the Ad Hoc Committee of the Harvard Medical School to Examine the Definition of Brain Death proposed that death could be determined on the basis of neurological criteria, thus providing a positive answer to these two questions (Ad Hoc Committee 1968). According to the position of this committee, patients diagnosed with the cessation of brain function are dead, despite the fact that they breathe and circulate blood with the aid of mechanical ventilation. [End Page 185] Because they are dead, it is appropriate, indeed imperative, to stop mechanical ventilation. And because they are dead, it becomes ethical to procure vital organs for transplantation before stopping what otherwise would be life-sustaining treatment. Remarkably, this innovative neurological determination of death became, with little debate or controversy, the established position in medical ethics and the law throughout the United States.The Harvard Committee articulated the diagnosis of “irreversible coma,” but merely asserted that this condition constituted death. No explanatory rationale was provided. It fell to the President’s Commission for the Study of Ethical Problems in Medicine and Biomedical and Behavioral Research to provide an authoritative rationale in its 1981 report, Defining Death. The second paragraph of the report set the stage as follows: “The question addressed here is not inherently difficult or complicated. Simply, it is whether the law ought to recognize new means for establishing that the death of a human being has occurred” (President’s Commission 1981, p. 3). The Commission claimed that “death is a unitary phenomenon” (p. 7) and that the determination of death by neurological criteria, in terms of the absence of all brain function, is consistent with the traditional conception of death as the cessation of vital functioning of the organism as a whole. The key issue is the integrative functioning of the human organism, which ceases to exist, according to the Commission, when the whole brain, including higher cortical areas and the brain stem, fails to function. Although “brain-dead” patients do not appear to be dead—i.e., the reality of their death is “masked” by the activity of mechanical ventilation—the patient’s body has irreversibly lost all capacity for integrative functioning. In the words of the Commission: “When artificial means of support mask this loss of integration as measured by the old methods [cessation of respiration and heart beat], brain-oriented criteria and tests provide a new window on the same phenomenon” (p. 33). The President’s Commission was instrumental in developing and establishing “The Uniform Definition of Death Act”: “An individual who has sustained either (1) irreversible cessation of circulatory and respiratory functions, or (2) irreversible cessation of all functions of the entire brain, including the brain stem, is dead” (p. 2).Although the question posed by the President’s Commission was easy to articulate, the answer, over time, has proved complicated and controversial. The coherence and cogency of determining death by neurological criteria has been challenged. Various experts have demonstrated that “brain-dead” patients maintained on mechanical ventilation display a range of vital, integrative, functioning, which conflicts with the judgment that they are dead (Truog and... (shrink)

The Death of the Past argues that critical problems in the philosophy of history, such as the the truth of historical texts, how texts relate to the past that they are about, and the nature of historical explanation, can be successfully investigated if we accept the claim that historical writing is historicist--perspectival (from the standpoint of the historian) rather than purporting to be like an eyewitness account (as in the first-person "presentist" views critiqued by Enzo Traverso). This approach admits all (...) relevant evidence as subject to analysis in order to determine the widest point of view, as opposed to the biased "eyewitness" approach, which observes only partially. The link between the past itself and historical knowledge is radically broken, giving the latter the wisdom of hindsight across a broader temporal field from the events examined up to the present. The truth about the past is only accessible from a later point in time; "the past" itself is not a reality for the historian; it no longer exists. Frank Ankersmit offers a surprising foundation for the historicist notion of history: Leibniz' monadological universe, in which each monad or substance has its own point of view. There is no deeper ontology to which they owe their status--just an infinity of monads and a corresponding infinity of points of view on other monads. So with historical representations, statements about the past that can be either true or false but not depictions of the past itself. In striking contrast to Hayden White's view, Ankersmit insists that historical writing is no less rational than the sciences-- mathematical and scientific writing has its counterpart in the writing of history. (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.

Various formalisms for recasting quantum mechanics in the framework of classical mechanics on phase space are reviewed and compared. Recent results in stochastic quantum mechanics are shown to avoid the difficulties encountered by the earlier approach of Wigner, as well as to avoid the well-known incompatibilities of relativity and ordinary quantum theory. Specific mappings among the various formalisms are given.

Prevailing ethical thinking about informed consent to clinical research is characterized by theoretical confidence and practical disquiet. On the one hand, bioethicists are confident that informed consent is a fundamental norm. And, for the most part, they are confident that what makes consent to research valid is that it constitutes an autonomous authorization by the research participant. On the other hand, bioethicists are uneasy about the quality of consent in practice. One major source of this disquiet is substantial evidence of (...) the “therapeutic misconception”—the tendency of patient-subjects in clinical trials to confuse participating in research with receiving personalized medical care. This .. (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)

Corporate governance is often split between rule-based and principle-based approaches to regulation in different institutional contexts. This split is often informed by the types of institutional configurations, their strengths, and the complementarities within them. This approach to corporate governance regulation is mostly discussed in the context of developed economies and their regulatory demands. However, in developing and weak market economies, such as in Sub-Saharan Africa, there is no such explicit split and the debates on such contexts in the comparative corporate (...) governance literature have been meagre. Nonetheless, there are sparks of good corporate governance practices in the region. Drawing from institutional theory and a case study of a largest economy, we explore the appropriateness or suitability of corporate governance regulatory frameworks in Sub-Saharan Africa. Our findings suggest that Nigeria needs an integrated system that combines elements of both rule-based and principle-based regulation, supported by a multi-stakeholder co-regulation strategy. This paper departs from the mainstream rule-based and principle-based categorisations by forging ahead new perspectives on corporate governance regulation, especially in weak market economies. (shrink)