We present a simple distributed concept that appears to insinuate SWARM behavior in a collection of mobile platforms. The control is based on the inter-mobile platform communication linksâ signal-to-noise ratio. This double use of communications is a natural linkage for SWARM behavior.
In the Philosophy of Sport literature, play has been widely conceived, in whole or part, as an autotelic activity; that is, an activity pursued for intrinsic factors. I examine several versions of the conception of play as an autotelic activity. Given these different accounts, I raise the question whether the concept of autotelic play is tenable. I examine three possibilities: (i) accept the concept of autotelic play and reject the possibility of satisfying the conditions for play activities; (ii) accept the (...) concept and acknowledge that play refers to a range of activities ranging from the purely autotelic to something less; and, (iii) reject the definition of play as an autotelic activity and redefine play. I argue that the third option is the best avenue for constructing a viable account of play. In defending this third option, I argue that play activities are value laden, that the value of play is an empirical matter, and that the effect of motivating reasons on behavior is the basis for determining which motivating reasons count as intrinsic or extrinsic. I conclude that the weight of the arguments suggest we would be well-served to redefine and move beyond the notion of autotelic play. (shrink)
_Climbing - Philosophy for Everyone_ presents a collection of intellectually stimulating new essays that address the philosophical issues relating to risk, ethics, and other aspects of climbing that are of interest to everyone from novice climbers to seasoned mountaineers. Represents the first collection of essays to exclusively address the many philosophical aspects of climbing Includes essays that challenge commonly accepted views of climbing and climbing ethics Written accessibly, this book will appeal to everyone from novice climbers to seasoned mountaineers Includes (...) a foreword written by Hans Florine Shortlisted for the Boardman Tasker Prize for Mountain Literature, 2010. (shrink)
The relevance of exchange effects for the stability of superheavy nuclei is examined within a linear QHD-II model by comparing Hartree-Fock with meanfield results. To allow a scan of the complete superheavy regime the recently developed local density approximation (LDA) for the exchange potential is employed for the Hartree-Fock level calculations. It turns out that, while many nuclear properties obtained with the LDA approach differ significantly from the corresponding mean-field results, the predictions of the two methods for shell closures are (...) very similar. Furthermore, a comparison with a nonlinear variant of QHD-II shows that many nuclear properties obtained with the LDA in the framework of linear QHD-II are somewhere in-between the corresponding linear and nonlinear mean-field results. This indicates that the LDA exchange partially includes nonlinear contributions, which supports the interpretation of the meson self-coupling as a parametrization of many-body effects. (shrink)
Stephen Hetherington é um dos mais proeminentes epistemólogos a defender que é possível ter conhecimento segundo as condições de crença verdadeira e justificada, apesar dos contraexemplos elaborados por Edmund Gettier. Ele fundamentou sua perspectiva no pressuposto de falibilidade do conhecimento e naquilo que ele chamou de "falácia de contrafactuais epistêmicos", segundo a qual não se deve assumir impossibilidade do conhecimento factual apenas em virtude da sua impossibilidade contrafactual - o que é reiterado por Anthony Booth. As críticas apresentadas por (...) Brent Madison, John Turri e Duncan Prtichard apontaram para a relevância das suas ideias, mas também para o fato de que Hetherington ignorou que há diferentes tipos de sorte que podem interferir no processo de aquisição de conhecimento. Palavras-chave: Falácia de contrafactuais epistêmicos. Falibilismo. Infalibilismo. Sorte epistêmica. Stephen Hetherington. (shrink)