A bridge between semipopular works for the general reader and technical treatises written for specialists, this excellent work discusses the foundational ideas and background of modern physics. It is not a text on theoretical physics, but a discussion of the methods of physic description and construction of theory. As such, it is especially valuable for the physicist with a background in elementary calculus who is interested in the ideas which give meaning to the data and tools of modern physics.

: There is a concern that genetic engineering will exacerbate existing social divisions and inequalities, especially if only the wealthy can afford genetic enhancements. Accordingly, many argue that justice requires the imposition of constraints on genetic engineering. However, it would be unwise to decide at this time what limits should be imposed in the future. Decision makers currently lack both the theoretical tools and the factual foundation for making sound judgments about the requirements of justice in a genetically transformed society. (...) Moreover, focusing on the uncertain inequities of the future may result in failure to give priority to more pressing inequities of the present. Especially in a country that recently has enacted tax legislation that will widen existing wealth disparities, concern about the distant threat of a genetic aristocracy appears misplaced. (shrink)

Prior to passage of the Oregon Death with Dignity Act, opponents of assistance in dying argued that legalization would have serious harmful consequences. Specifically, they argued that the quality and availability of palliative care would decline, that the harms of legalization would affect certain vulnerable groups disproportionately, that legal assisted dying could not be confined to the competent terminally ill who voluntarily request assistance, and that the practice would result in frequent abuses. Data from Oregon's decade-long experience decisively refute the (...) first three predictions. As to abuses, the record is not quite as clear, but if an appropriate framework for analysis is utilized, the most reasonable conclusion is that the risks of abuse do not outweigh the benefits of legalization. To the extent projected harmful consequences are relevant to the debate over legalization, Oregon's experience argues in favor of legalization of assistance in dying. (shrink)

Prominent among the arguments against the legalization of assisted suicide is the contention that legalization will have a disproportionately adverse, or “disparate,” impact on various vulnerable groups. There are many versions of this argument, with different advocates of this argument focusing on different vulnerable groups, and some advocates confusedly blending slippery slope and social justice concerns. Also, the weight placed on this argument by its various advocates is not uniform, with some including the argument in a list of multiple, apparently (...) similarly persuasive, reasons for not legalizing assisted suicide, while others place significant reliance on it and yet others advance the argument without any clear indication of its importance. Nonetheless, the various versions share a common core: One reason assisted suicide should not be legalized is that members of certain vulnerable groups are more likely to be pressured into requesting it, whether directly by those hostile or indifferent to their interests, or indirectly by social circumstances, such as an inability to pursue other healthcare choices. (shrink)

Prominent among the arguments against the legalization of assisted suicide is the contention that legalization will have a disproportionately adverse, or “disparate,” impact on various vulnerable groups. There are many versions of this argument, with different advocates of this argument focusing on different vulnerable groups, and some advocates confusedly blending slippery slope and social justice concerns. Also, the weight placed on this argument by its various advocates is not uniform, with some including the argument in a list of multiple, apparently (...) similarly persuasive, reasons for not legalizing assisted suicide, while others place significant reliance on it and yet others advance the argument without any clear indication of its importance. Nonetheless, the various versions share a common core: One reason assisted suicide should not be legalized is that members of certain vulnerable groups are more likely to be pressured into requesting it, whether directly by those hostile or indifferent to their interests, or indirectly by social circumstances, such as an inability to pursue other healthcare choices. (shrink)

The concept of energy, the premier concept of physics and indeed of all science, is here investigated from the standpoint of its early historical origin and the philosophical implications thereof. The fundamental assumption is made that the root of the concept is the notion of invariance or constancy in the midst of change. Salient points in the development of this idea are presented from ancient times up to the publication of Lagrange'sMécanique Analytique (1788).

It is the aim of this paper to examine certain aspects of a point of view which has attracted much attention in physical methodology. This is the standpoint known as operationalism. We wish to discuss its significance in the construction and interpretation of physical theories.The essential meaning of operationalism in physics is that physical concepts should be defined in terms of actual physical operations. On this view there is no meaning to a concept unless it represents an operation which can (...) be performed in the laboratory. Thus the term “pressure of a gas” signifies nothing until an operation is described which constitutes the measurement of pressure. When one thinks of pressure one must think. of some actual apparatus, such as, for example, some glass and rubber tubing and some mercury and certain operations performed using these until finally one gets a pointer reading which one calls the pressure of the gas. The same stand is taken with respect to length, time, velocity, acceleration, temperature, etc. (shrink)

In the fourteenth century William of Occam in the course of his attack on the medieval scholastic philosophy enunciated his famous “razor”: Entia non sunt multiplicanda praeter necessitatem. This is the classic claim for the description of nature in terms of the minimum possible number of fundamental concepts. It was presumably so recognized by Newton in the third book of his “Principia” in 1687 when he wrote: “We are to admit no more causes of natural things than such as are (...) both true and sufficient to explain their appearances. To this purpose the philosophers say that Nature does nothing in vain, and more is in vain when less will serve; for Nature is pleased with simplicity and affects not the pomp of superfluous causes.”. (shrink)

Even if there is a common morality, many would argue that it provides little guidance in resolving moral disputes, because universally accepted norms are both general in content and few in number. However, if we supplement common morality with commonly accepted factual beliefs and culture-specific norms and utilize coherentist reasoning, we can limit the range of acceptable answers to disputed issues. Moreover, in the arena of public policy, where one must take into account both legal and moral norms, the constraints (...) on acceptable answers will narrow the extent of reasonable disagreement even further. A consideration of the debate over legalization of assisted dying supports this claim. (shrink)

: Common morality theory must confront apparent counterexamples from the history of morality, such as the widespread acceptance of slavery in prior eras, that suggest core norms have changed over time. A recent defense of common morality theory addresses this problem by drawing a distinction between the content of the norms of the common morality and the range of individuals to whom these norms apply. This distinction is successful in reconciling common morality theory with practices such as slavery, but only (...) at the cost of underscoring the limits of common morality theory, in particular its inability to resolve disputes about the moral status of entities. Given that many controversies in bioethics center on the disputed status of various entities, such as embryos and nonhuman animals, this is an important limitation. Nonetheless, common morality theory still can be a useful resource in diminishing moral conflict on issues that do not involve disputes over moral status. (shrink)

Baron assumes that ethical decision-making can be evaluated without specifying more general features of the cognitive system within which it occurs. It is suggested that ethical principles are heuristics employed during goal-oriented action planning. Heuristics are bound to generate suboptimal decisions in some cases. It is rational to replace a particular heuristic only when the cost of associated error exceeds the cost of constructing and installing a more successful alternative.

few areas of public policy have been fraught with as much controversy as bioethics. Each novel development in biomedical technology seems to spark rancorous disputes. Those averse to new technologies often express the concern that the new technology is 'unnatural' or requires us to 'play God'. Slogans such as 'Frankenfoods' and 'sanctity of life' substitute for reasoned argument. This is an ambitious book that seeks to reframe the debates surrounding current controversies in bioethics. Carefully examining and dissecting claims made by (...) many policy-makers and ethicists on topics such as assistance in dying, genetic engineering, and embryonic stem cell research, bioethicist Ronald A Lindsay shows that all too often these claims are based on instinctive reactions, beliefs that lack factual support, and religious or ideological dogma. After describing in detail the proper way to approach and resolve a dispute in bioethics, Lindsay proceeds to analyse several different cutting-edge issues. Through his insightful analysis, Lindsay demonstrates how to achieve pragmatic, progressive solutions to these controversies. An antidote for misguided thinking, "Future Bioethics" illuminates the way forward to bioethics policies appropriate for the 21st century. (shrink)

Two types of variables impact face recognition: estimator variables that cannot be controlled and system variables that are under direct control by the criminal justice system. This article addresses some of the reasons that eyewitnesses are prone to making errors, particularly false identifications. It provides a discussion of the differences between typical facial memory and eyewitness studies and shows that the two areas generally find similar results. It reviews estimator variable effects and focuses on system variables. Traditional facial recognition researchers (...) rarely study system variables but reveal important factors that police and policy makers should consider with regard to eyewitness identification and the courts. It concludes that there is still room for considerable improvement in identification procedures and wants to encourage more system variable research as a means of reducing wrongful convictions. (shrink)

Decisions based on ethics confront nurses daily. In this account, a cardiac nurse struggles with the challenge of securing health care benefits for Justin, a patient within the American system of health care. An exercise therapy that is important for his well-being is denied. The patient’s nurse and an interested insurance agent develop a working relationship, resulting in a relational narrative based on Justin’s care. Gadow’s concept of a relational narrative and Keller’s concept of a relational autonomy guide this particular (...) case. As an ethics framework influenced by feminist ethical theory, Gadow’s, Keller’s and Tisdale’s ideas demonstrate the fluidity with which the nurse and others can work while maintaining both autonomy and engagement without being self-sacrificing. (shrink)

Decisions based on ethics confront nurses daily. In this account, a cardiac nurse struggles with the challenge of securing health care benefits for Justin, a patient within the American system of health care. An exercise therapy that is important for his well-being is denied. The patient’s nurse and an interested insurance agent develop a working relationship, resulting in a relational narrative based on Justin’s care. Gadow’s concept of a relational narrative and Keller’s concept of a relational autonomy guide this particular (...) case. As an ethics framework influenced by feminist ethical theory, Gadow’s, Keller’s and Tisdale’s ideas demonstrate the fluidity with which the nurse and others can work while maintaining both autonomy and engagement without being self-sacrificing. (shrink)

The modern theoretical physicist is a strange creature. Perhaps in every age the theoretical physicist has seemed so to his contemporaries who took the trouble to observe and think about him. There seems, for example, something almost too magical in the uncanny way in which he pulls a brand new atomic particle out of a theory, a way that reminds us of a rabbit being produced out of a hat. This is usually done in an off-hand manner with a considerable (...) amount of patter of a highly abstract symbolic character but with a few words inserted in the right places for the benefit of the experimental physicist and a final prediction that if the experimenter does thus and so in the laboratory he will find a certain result. No wonder the observer marvels when the answer comes out right. But as he thinks further he is inclined to wonder whether it is necessary or desirable for the details of the process which led to the result to be so unintelligible. For unintelligible they seem to be to a great many people who are directly concerned with their understanding, to the people who for years have been laboring under the belief that they are engaged in the task of finding out how Nature works. What is this curious process whose whole task, according to one distinguished exponent of it, is merely to predict experimental results, and what is its future likely to be? These are the questions we are setting for ourselves in the present discussion. It is unlikely that the answers given here will satisfy everybody, but it is reasonably certain that nobody who aspires to an interest in science can fail to attach some meaning to them whether or not he agrees. (shrink)