Scholars and policymakers continue to struggle over the meaning of the word “vulnerable” in the context of research ethics. One major reason for the stymied discussions regarding vulnerable populations is that there is no clear distinction between accounts of research vulnerabilities that exist for certain populations and discussions of research vulnerabilities that require special regulations in the context of research ethics policies. I suggest an analytic process by which to ascertain whether particular vulnerable populations should be contenders for additional regulatory (...) protections. I apply this process to two vulnerable populations: the cognitively vulnerable and the economically vulnerable. I conclude that a subset of the cognitively vulnerable require extra protections while the economically vulnerable should be protected by implementing existing regulations more appropriately and rigorously. Unless or until the informed consent process is more adequately implemented and the distributive justice requirement of the Belmont Report is emphasized and operationalized, the economically disadvantaged will remain particularly vulnerable to the harm of exploitation in research. (shrink)
We study the filter ℒ*(A) of computably enumerable supersets (modulo finite sets) of an r-maximal set A and show that, for some such set A, the property of being cofinite in ℒ*(A) is still Σ0 3-complete. This implies that for this A, there is no uniformly computably enumerable “tower” of sets exhausting exactly the coinfinite sets in ℒ*(A).
We construct the set of the title, answering a question of Cholak, Jockusch, and Slaman , and discuss its connections with the study of the proof-theoretic strength and effective content of versions of Ramsey's Theorem. In particular, our result implies that every ω-model of RCA 0 + SRT 2 2 must contain a nonlow set.
What clearly emerges from Hegel's writings is that "Geist" refers to some sort of general consciousness, a single "mind" common to all men. The entire sweep of the Phenomenology of Spirit is away from the "disharmonious" conceptions of men as individuals to the "absolute" conception of all men as one. In the Phenomenology, we are first concerned with the inadequacy of conceptions of oneself as an individual in opposition to others and in opposition to God. This opposition is first resolved (...) in ethics, in the conception of oneself as a member of a family, of a community, of Kant's "Kingdom of Ends," as a citizen of the state, and then in religion, in which one conceives of oneself as "part" of God and a religious community. Absolute consciousness is the explicit recognition of one's identity as universal Spirit. The concept of "Geist" is the hallmark of a theory of self identity--a theory in which I am something other than a person. (shrink)
Popper: I do admit that at any moment we are prisoners caught in the framework of our theories; our expectations; our past experiences; our language. But we are prisoners in a Pickwickian sense: if we try, we can break out of our framework at any time. Admittedly, we shall find ourselves again in a framework, but it will be a better and roomier one; and we can at any moment break out of it again.Kuhn: If that possibility were routinely available, (...) there ought to be no very special difficulties about stepping into someone else's framework in order to evaluate it. My critics' attempts to step into mine suggest, however, that changes of framework, of theory, of language, or of paradigm pose deeper problems of both .. (shrink)
Must no one at all, then, be called happy while he lives; must we, as Solon says, see the end? Even if we are to lay down this doctrine, is it also the case that a man is happy when he is dead ? Or is not this quite absurd, especially for us who say that happiness is an activity? But if we do not call the dead man happy, and if Solon does not mean this, but that one can (...) then safely call a man blessed, as being at last beyond evils and misfortunes, this also affords matter for discussion; for both evil and good are thought to exist for a dead man, as much as for one who is alive but not aware of them; e.g. honours and dishonours and the good or bad fortunes of children, and in general of descendants. And this also presents a problem; for though a man has lived happily until old age and has had a death worthy of his life, many reverses may befall his descendants—some of them may be good and attain the life they deserve, while with others the opposite may be the case; and clearly too the degrees of relationship between them and their ancestors may vary indefinitely. It would be odd, then, if the dead man were to share in these changes and become at one time happy, at another wretched; while it would also be odd if the fortunes of the descendants did not for some time have some effect on the happiness of their ancestors. (shrink)