Neuroscience research has improved our understanding of the long term consequences of sports-related concussion, but ethical issues related to the prevention and management of concussion are an underdeveloped area of inquiry. This article exposes several examples of conflicts of interest that have arisen and been tolerated in the management of concussion in sport (particularly professional football codes) regarding the use of computerized neuropsychological (NP) tests for diagnosing concussion. Part 1 outlines how the recommendations of a series of global protocols for (...) dealing with sports-related concussions (the 1st, 2nd and 3rd Consensus Statements on Concussion in Sport) have endorsed the use of NP testing. The development of these protocols has involved experts who have links with companies that sell computerised NP tests for concussion management. Part 2 describes how some professional football leagues—in particular the National Football League (NFL), the Australian Football League (AFL) and the National Rugby League (NRL)—have mandated specific NP testing products. They have done so on the basis of these international guidelines and by engaging experts who have conflicts of interest with NP testing companies. These decisions have also been taken despite evidence that casts doubt on the reliability and validity of NP tests when used in these ways. (shrink)

Motivated by an old construction due to J. Kalman that relates distributive lattices and centered Kleene algebras we define the functor K • relating integral residuated lattices with 0 with certain involutive residuated lattices. Our work is also based on the results obtained by Cignoli about an adjunction between Heyting and Nelson algebras, which is an enrichment of the basic adjunction between lattices and Kleene algebras. The lifting of the functor to the category of residuated lattices leads us to study (...) other adjunctions and equivalences. For example, we treat the functor C whose domain is cuRL, the category of involutive residuated lattices M whose unit is fixed by the involution and has a Boolean complement c. If we restrict to the full subcategory NRL of cuRL of those objects that have a nilpotent c, then C is an equivalence. In fact, C M is isomorphic to C e M, and C e is adjoint to, where assigns to an object A of IRL0 the product A × A 0 which is an object of NRL. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Pierre Jurieu's Contribution to Bayle's Dktionnaire KARL C. SANDBERG PIERRE BAYLE'S VIEWSon faith and reason1as they appear throughout his Dictionnaire historique et critique (1697) may be reduced to two basic points. First, the doctrines of Christian theology are vulnerable to a great number of rational objections which would seem to destroy them. Second, reason itself is not a reliable guide in areas of speculative knowledge and should be made (...) to bow to the authority of revelation. This position in its essence is neither irreligious nor antireligious. On the contrary, it is closely related to the general stream of seventeenth-century fideism,~ and is only the logical extension of views which Bayle had expressed as a Protestant controversialist in his early writings2 Moreover, recent studies of Bayle in his milieu have presented compelling evidence that Bayle himself lived, wrote, and died as some kind of believing member of the Reformed Church. 4 It is not less certain, however, that Bayle's Dictionnaire was one of the most powerful antireligious influences of the Enlightenment, s for the eighteenth-century rationalists found in it such a tone of polemics coupled with such an abundant display of the rational insufficiencies of Christianity, that they could not take Bayle's ostensible fideism seriously. This paradox leads one to wonder why Bayle as a believer should so insist upon the disparity he found between faith and reason if he did not intend to lead an attack upon religion in general. What would account for the presence of the penetrating rational critique of Christian doctrines except a desire to discredit them? A partial answer might be suggested by Bayle's method of exposition and disputa1By faith is meant the belief in the speculative doctrines of Calvinist Protestantism, such as the Trinity, the Incarnation, and Providence, and in the authority of revelation. By reason is meant essentially the Cartesian method, whose criterium of truth is incontrovertible evidence. See Richard Popkin, "Pierre Bayle's Place in 17th-century Scepticism," in Pierre Bayle, le philosophe de Rotterdam, ed. Paul Dibon (Amsterdam: 1959). 8During his participation in the Protestant-Catholic controversies of 1682-1687, Bayle became keenly aware that no Christian dogma was susceptible of rational proof. See his Commentaire Philosophique (1686)in his Oeuvres diverses (The Hague: 1737), II, 438. He had, however, previouslybeen convinced of the frailty of reason as a guide in speculative areas (but not in practical matters of morality). See his NouveUes de la Republique des Lettres, September, 1684, in Oeuvres diverses, I, 132-133. These works will hereafter be abbreviated CP, OD, and NRL, respectively. Other abbreviations to be used are DHC, Dictionnaire historique el critique; LFam, Lettres de M. Bayle ~ sa famille; SCP, Supplement du Commentaire philosophique (1687); PDC, Pens~es diverses sur la eomOte (1682); CC, La Cabale ehimdrique (1691). All of these works except the Dictionnaire are found in the Oeuvres diverses. The fourth edition of the Dictionnaire (1730) is the one cited here. 4See Paul Dibon, ed., Pierre Bayle, le philosophe de Rotterdam (Amsterdam: 1959), and Elizabeth Labrousse, Pierre Bayle, Vol. I, "Du Pays de Foix i~la cit~ d'Erasme" (La Haye: 1963). 6Paul Hazard, La Pens~e europ$enne au XVIII~me si~cle de Montesquieu (~ Lessing (Paris [1946], I, 44. [59] 60 HISTORY OF PHILOSOPHY tion, for in examining any question he felt intellectually obligated to set forth the strong and weak points of both sides. One can never boast of having proved a point, he said, without having stated and answered the strongest objections of one's opponent. ~ What subsequent readers found heterodox was possibly only Bayle's statement of his opponent's position. This answer is insufficient, however, because as Bayle had previously become aware of irreconcilable differences between faith and reason in the course of his early thought and writings, he had been extremely reluctant to voice the implications of his disquieting discoveries (1682-1687).7 Ten years later in the Dictionnaire, on the other hand, he seemed to go out of his way to state them with all possible clarity and vigor. It was this change in emphasis in the expression of his thought which was responsible for the great antireligious... (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Pierre Jurieu's Contribution to Bayle's Dktionnaire KARL C. SANDBERG PIERRE BAYLE'S VIEWSon faith and reason1as they appear throughout his Dictionnaire historique et critique (1697) may be reduced to two basic points. First, the doctrines of Christian theology are vulnerable to a great number of rational objections which would seem to destroy them. Second, reason itself is not a reliable guide in areas of speculative knowledge and should be made (...) to bow to the authority of revelation. This position in its essence is neither irreligious nor antireligious. On the contrary, it is closely related to the general stream of seventeenth-century fideism,~ and is only the logical extension of views which Bayle had expressed as a Protestant controversialist in his early writings2 Moreover, recent studies of Bayle in his milieu have presented compelling evidence that Bayle himself lived, wrote, and died as some kind of believing member of the Reformed Church. 4 It is not less certain, however, that Bayle's Dictionnaire was one of the most powerful antireligious influences of the Enlightenment, s for the eighteenth-century rationalists found in it such a tone of polemics coupled with such an abundant display of the rational insufficiencies of Christianity, that they could not take Bayle's ostensible fideism seriously. This paradox leads one to wonder why Bayle as a believer should so insist upon the disparity he found between faith and reason if he did not intend to lead an attack upon religion in general. What would account for the presence of the penetrating rational critique of Christian doctrines except a desire to discredit them? A partial answer might be suggested by Bayle's method of exposition and disputa1By faith is meant the belief in the speculative doctrines of Calvinist Protestantism, such as the Trinity, the Incarnation, and Providence, and in the authority of revelation. By reason is meant essentially the Cartesian method, whose criterium of truth is incontrovertible evidence. See Richard Popkin, "Pierre Bayle's Place in 17th-century Scepticism," in Pierre Bayle, le philosophe de Rotterdam, ed. Paul Dibon (Amsterdam: 1959). 8During his participation in the Protestant-Catholic controversies of 1682-1687, Bayle became keenly aware that no Christian dogma was susceptible of rational proof. See his Commentaire Philosophique (1686)in his Oeuvres diverses (The Hague: 1737), II, 438. He had, however, previouslybeen convinced of the frailty of reason as a guide in speculative areas (but not in practical matters of morality). See his NouveUes de la Republique des Lettres, September, 1684, in Oeuvres diverses, I, 132-133. These works will hereafter be abbreviated CP, OD, and NRL, respectively. Other abbreviations to be used are DHC, Dictionnaire historique el critique; LFam, Lettres de M. Bayle ~ sa famille; SCP, Supplement du Commentaire philosophique (1687); PDC, Pens~es diverses sur la eomOte (1682); CC, La Cabale ehimdrique (1691). All of these works except the Dictionnaire are found in the Oeuvres diverses. The fourth edition of the Dictionnaire (1730) is the one cited here. 4See Paul Dibon, ed., Pierre Bayle, le philosophe de Rotterdam (Amsterdam: 1959), and Elizabeth Labrousse, Pierre Bayle, Vol. I, "Du Pays de Foix i~la cit~ d'Erasme" (La Haye: 1963). 6Paul Hazard, La Pens~e europ$enne au XVIII~me si~cle de Montesquieu (~ Lessing (Paris [1946], I, 44. [59] 60 HISTORY OF PHILOSOPHY tion, for in examining any question he felt intellectually obligated to set forth the strong and weak points of both sides. One can never boast of having proved a point, he said, without having stated and answered the strongest objections of one's opponent. ~ What subsequent readers found heterodox was possibly only Bayle's statement of his opponent's position. This answer is insufficient, however, because as Bayle had previously become aware of irreconcilable differences between faith and reason in the course of his early thought and writings, he had been extremely reluctant to voice the implications of his disquieting discoveries (1682-1687).7 Ten years later in the Dictionnaire, on the other hand, he seemed to go out of his way to state them with all possible clarity and vigor. It was this change in emphasis in the expression of his thought which was responsible for the great antireligious... (shrink)