In both law and ethics, precedent shapes the deliberation of novel issues. Despite the interconnection between new and old decisions, few research ethics boards have an explicit mechanism for archiving issue-based research ethics decisions to inform future decisions. With the intent of promoting expediency, consistency, and accountability in REB decision-making, Sunnybrook Health Sciences Centre implemented a “decision bank”: a formal mechanism for systematically capturing institutional REB decisions. We describe the development of the decision bank, its implementation, and the lessons we (...) have learned from both. The decision bank, which is categorized by general issue themes such as consent, study design, and privacy, is still in the early implementation phase, but it provides a much-needed method to address the paucity of formal mechanisms and literature in a biomedical field otherwise inundated with evidence-based information. (shrink)

Crawshay-Williams defines the scope of his book as the study of statements "put forward with a sort of claim to general acceptance by the company [to which they are addressed]". Perelman and Olbrechts-Tyteca would certainly agree that only such statements are capable of giving rise to controversy. But this point, and one other that I shall mention shortly, are nearly the only ones on which the two books agree. And there is profound disagreement about how even this point is to (...) be interpreted. Crawshay-Williams is interested only in the extent to which the claim to acceptance can be satisfied. The phrase I have just quoted is his definition of statements that are testable. His book is largely a discussion of the tests that can be used to determine the correctness of such statements. The implication is, of course, that any genuine controversy can, in principle, be adjudicated by applying such tests to the statements over which it arises. Perelman and Olbrechts-Tyteca, on the other hand, are primarily interested in ways of expressing the claim to general acceptance. Their book is mainly a study of the means by which a statement, or a series of them, can be put forward so as to claim general acceptance by the company to which it is addressed. For them, controversy consists in claims and counter-claims. It can thus be decisively settled only when a claim is sufficiently overpowering to silence all counter-claims. But such a result can be accomplished only by force or hypnosis, and these settle controversy not by adjudicating it but by abolishing it. Controversy cannot therefore be adjudicated at all, except in relatively trivial cases. (shrink)

It has been manifested over the past few centuries that science provides superbly powerful tools and methods for modifying the natural world. Many people would agree that it has also offered explanation and understanding. But it is still unclear that these tools and methodology can propel us to solve all of the cognitive dilemmas that exist. It has been assumed, for example, that scientific knowledge and religious knowledge are so different that they cannot even clash with one another. But the (...) recent arguments about creation and evolution show that perhaps they can come into conflict after all. (shrink)

There are a number of reasons for being interested in uncertainty, and there are also a number of uncertainty formalisms. These formalisms are not unrelated. It is argued that they can all be reflected as special cases of the approach of taking probabilities to be determined by sets of probability functions defined on an algebra of statements. Thus, interval probabilities should be construed as maximum and minimum probabilities within a set of distributions, Glenn Shafer's belief functions should be construed as (...) lower probabilities, etc. Updating probabilities introduces new considerations, and it is shown that the representation of belief as a set of probabilities conflicts in this regard with the updating procedures advocated by Shafer. The attempt to make subjectivistic probability plausible as a doctrine of rational belief by making it more flowery -- i.e., by adding new dimensions -- does not succeed. But, if one is going to represent beliefs by sets of distributions, those sets of distributions might as well be based in statistical knowledge, as they are in epistemological or evidential probability. (shrink)

Efforts to get scientific knowledge reap valuable knowledge about the world. It is often rewarding simply to know more, but a greater benefit of knowing more is that, knowing the future, one can make sound decisions. There is an easy and unified decision theory that, if only it applied to everything, would solve all the decision problems humans face. It is known as “Bayesian” decision theory because it requires a set of probabilities determined over the world states.

Speculation is often opposed with scientific knowledge. Life existence on other planets of the solar system is through “sheer speculation,” while the chemical nature of the other planets' atmospheres is a matter of scientific knowledge. The present chapter does not dispute the distinction but it aims to examine the importance to science of speculation. The most vital role of speculation is that it provides us with scientific theories.

The majority of the philosophical attention on induction has been connected with universal conventions: “All crows are black,” “All emeralds are green,” “Every creature with kidneys is a creature with a heart,” and others. It has been observed that if it can be shown how and why such conventions can be given rational justification by our restrained observations of the world, the outcome will be simpler. It is felt that it is but a small step from here to quantitative laws (...) and only a little-longer jump to general theories. After achieving an understanding of general theories, we can go back, in a mopping-up approach, to handle such irrelevant trivia as statistical conventions. (shrink)

Induction is the inference from a sample to a population, regardless of the possible existence of exceptions. Induction is used in the practice of science and engineering based on knowledge that can be accepted as evidence. There are two bodies of knowledge: evidential corpus, a set of propositions acceptable as evidence in a certain context; and practical corpus, a set of propositions counting as “practically certain” in that context. There are five kinds of induction described: statistical, universal, nomic, theoretical, and (...) instantial. (shrink)

In order for an “ideal” to make relevance, it is not mandatory, certainly, to be able to reach it. It is enough that it is possible to approach it, and even only to a certain extent. To be able to approach the ideal arbitrarily closely is not needed, even “theoretically.” To make sense of the “improvement” we can get in approaching an ideal, the measure of how close the ideal needs to be must be determined. In the thermometer's case, the (...) measure was determined by the bias in the error distribution at different points on the scale. An essentially internal measure was given, a measure related closely to the pertinent kind of measurement. (shrink)

The chapter begins by explaining the concepts of quantity and magnitude. It then presents the method of measurement without using magnitude. This method of direct measurement can be achieved through the observation of the transitive relation among objects. A particular set of equivalence classes is selected to serve as a unit of measurement and is assigned magnitude. The concept of measurement error and approximation is then introduced. In some cases, such as temperature, indirect measurement, or measurement in terms of a (...) different quantity, yields less error and proves more accurate and convenient than direct measurement. In general, indirect measurements of different kinds are appropriate at different regions of the scale. (shrink)

Knowledge is distinguished between knowledge about the relations of ideas, like mathematical truths and logic, and knowledge of matters of fact or empirical knowledge of the world, which is derived from “sense experience.” Observational sentences are based on sense experience and can sometimes be judged to be true or false. Thus, the possibility of errors in observational judgment must be allowed. We can acknowledge the existence of observational error in general, and even be unable to specify any particular observation statement (...) that is certain, and yet be able to accept most observation statements on the basis of the corresponding reports and to reject others. (shrink)

One problem that has been plaguing for the long term is the problem of choosing the levels of rational corpora. Since what goes into a corpus is what has a probability higher than the index of that corpus, that index has a bearing on what is in a corpus. We have two levels to deal with, since the focus is both with the evidential corpus and with the practical corpus. What principles can be used to select these levels? A practical (...) way to approach this question is through the analysis of full belief or acceptance. Partial belief is distinguished in terms of a propensity to make, or fail to make, bets. (shrink)

The dominant argument for the introduction of propensities or chances as an interpretation of probability depends on the difficulty of accounting for single case probabilities. We argue that in almost all cases, the "single case" application of probability can be accounted for otherwise. "Propensities" are needed only in theoretical contexts, and even there applications of probability need only depend on propensities indirectly.

To the Editor: It was with great interest that our Canadian Palliative Sedation Therapy Guideline working group read Jeffrey Berger's recent article ("Rethinking Guidelines for the Use of Palliative Sedation," May-June 2010). Given our own group's efforts to develop national guidelines, we have rethought the issue of palliative sedation therapy several times over the past year.The use of clear and concise definitions is fundamental to the development of any consensus guidelines on this topic. In the article, the term "palliative sedation (...) to unconsciousness," or PSU, implies the concerning assumption that sedation will knowingly be to unconsciousness in the palliative case under consideration. This conflicts with .. (shrink)

The earliest Analects yet discovered, this work provides us with a new perspective on the central canonical text that has defined Chinese culture--and clearly illuminates the spirit and values of Confucius.

Following discussions by Callicott and Zimmerman, I argue that much of deep ecology’s critique of science is based on an outdated image of natural science. The significance of the quantum revolution for environmental issues does not lie in its alleged intrusion of the subjective consciousness into the physicists’ description of nature. Arguing from the viewpoint of Niels Bohr’s framework of complementarity,I conclude that Bohr’s epistemological lesson teaches that the object of description in physical science must be interaction and that it (...) is now mistaken to imagine that physical science aims to represent nature in terms of properties it possesses apart from interaction. (shrink)

For this reason also the question is asked, whether happiness is to be acquired by learning or by habituation or some other sort of training, or comes in virtue of some divine providence or again by chance. Now if there is any gift of the gods to men, it is reasonable that happiness should be god-given, and most surely god-given of all human things inasmuch as it is the best. But this question would perhaps be more appropriate to another inquiry; (...) happiness seems, however, even if it is not god-sent but comes as a result of virtue and some process of learning or training, to be among the most god-like things; for that which is the prize and end of virtue seems to be the best thing in the world, and something godlike... (shrink)