Besides the pure pleasure of watching a dance performance, dance as a whole-body movement is becoming increasingly popular for health-related interventions. However, the science-based evidence for improvements in health or well-being through dance is still ambiguous and little is known about the underlying neurophysiological mechanisms. This may be partly related to the fact that previous studies mostly examined the neurophysiological effects of imagination and observation of dance rather than the physical execution itself. The objective of this pilot study was to (...) investigate acute effects of a physically executed dance with its different components on the electrical brain activity and its functional connectivity using electroencephalographic analysis. Eleven dance-inexperienced female participants first learned a Modern Jazz Dance choreography over three weeks. Afterwards, the acute effects on the EEG brain activity were compared between four different test conditions: physically executing the MJD choreography with music, physically executing the choreography without music, imaging the choreography with music, and imaging the choreography without music. Every participant passed each test condition in a randomized order within a single day. EEG rest-measurements were conducted before and after each test condition. Considering time effects the physically executed dance without music revealed in brain activity analysis most increases in alpha frequency and in functional connectivity analysis in all frequency bands. In comparison, physically executed dance with music as well as imagined dance with music led to fewer increases and imagined dance without music provoked noteworthy brain activity and connectivity decreases at all frequency bands. Differences between the test conditions were found in alpha and beta frequency between the physically executed dance and the imagined dance without music as well as between the physically executed dance with and without music in the alpha frequency. The study highlights different effects of a physically executed dance compared to an imagined dance on many brain areas for all measured frequency bands. These findings provide first insights into the still widely unexplored field of neurological effects of dance and encourages further research in this direction. (shrink)

Although the individuality of whole-body movements has been suspected for years, the scientific proof and systematic investigation that individuals possess unique movement patterns did not manifest until the introduction of the criteria of uniqueness and persistence from the field of forensic science. Applying the criteria of uniqueness and persistence to the individuality of motor learning processes requires complex strategies due to the problem of persistence in the learning processes. One approach is to examine the learning process of different movements. For (...) this purpose, it is necessary to differentiate between two components of movement patterns: the individual-specific component and the discipline-specific component. To this end, a kinematic analysis of the shot put, discus, and javelin throwing movements of seven high-performance decathletes during a qualification competition was conducted. In total, joint angle waveforms of 57 throws formed the basis for the recognition task of individual- and discipline-specific throwing patterns using a support vector machine. The results reveal that the kinematic throwing patterns of the three disciplines could be distinguished across athletes with a prediction accuracy of up to 100% (57 of 57 throws). However, athlete-specific throwing characteristics could also be identified across the three disciplines. Prediction accuracies of up to 52.6% indicated that up to 10 out of 19 throws of a discipline could be assigned to the correct athletes, based on only knowing these athletes from the kinematic throwing patterns in the other two disciplines. The results further suggest that individual throwing characteristics across disciplines are more pronounced in shot put and discus throwing than in javelin throwing. Applications for training and learning practice in sports and therapy are discussed. In summary, the chosen approach offers a broad field of application related to the search of individually optimal movement solutions in sports. (shrink)

Einführungs- und Übersichtsliteratur -- Zeittafel -- Personen- und Namenregister -- Sachregister sowie Liste griechischer und lateinischer Voces.

A new approach to the historiography of the history of philosophy was first proposed near the end of the eighteenth century. It is useful to regard it as an alternative to two others, sometimes conceived of as exhausting the possibilities: a purely philosophical approach, and a purely historical one, both of which I consider in section I. The bulk of the paper is devoted to what I call "the modern historiography of the history of philosophy" . Its origins are closely (...) tied to the renewal of philology. Section III recounts the methodological innovations of the New Philology and their relevance for approaching texts--including philosophical ones--from the past. In section IV, I consider some moves made by early proponents of "modern historiography"--in particular their implicit demand for an internal rather than an external history of philosophy, that is, an account that allows us to understand how and why philosophy has changed through time, in terms of philosophical factors: how, for example, one set of philosophical considerations led to a certain view; how reflecting on that view led philosophers to perceive various difficulties, and to perceive philosophical responses to those difficulties, and so on. The goal is to exclude, to as great an extent as possible, external factors, that is, factors which are not themselves philosophical views or arguments. In section V, I turn to Christian A. Brandis whose methodological reflections and historiographical practice mark an enormous advance over his predecessors and even over some of his successors, like W. Jaeger. I conclude by arguing that some "philosophical" objections brought against the way of proceeding advocated by Brandis fail. In the course of describing this new approach and its origins, I hope also to make clear why it is more attractive than the two other possibilities briefly considered in section I. (shrink)

Using an event-study framework, we examine the stock market reaction to the announcement of firm withdrawal from countries designated as “State Sponsors of Terrorism” by the U.S. Department of State. We find that such announcements are, on average, linked to a statistically significant increase in firm value—an effect which already kicks in a few days before the announcement date. The observed abnormal returns are positively associated with the U.S. domicile, the intensity of a firm’s hitherto existing engagement in a designated (...) country, the number of countries that it withdraws from, as well as with a withdrawal from Iran compared to a withdrawal from other countries. Evidence suggests an increase in demand for stocks of withdrawing firms as a plausible cause of the positive stock price reaction. Pension and endowment funds are significantly less likely to own strategic stakes in firms with intensive involvements in countries designated as “State Sponsors of Terrorism.” We find some statistical evidence that firms remaining active in such countries have abnormally positive returns in the long run. (shrink)

Übersetzt und mit Einfuhrung und Anmerkungen herausgegeben von Peter Kunze. Lateinisch-deutsch. (Philosophische Bibliothek, Nr. 401.) Hamburg: Felix Meiner, 1988. xlvii + 269 pp. 64 DM.

We argue that Wittgenstein’s philosophical perspective on Gödel’s most famous theorem is even more radical than has commonly been assumed. Wittgenstein shows in detail that there is no way that the Gödelian construct of a string of signs could be assigned a useful function within (ordinary) mathematics. — The focus is on Appendix III to Part I of Remarks on the Foundations of Mathematics. The present reading highlights the exceptional importance of this particular set of remarks and, more specifically, emphasises (...) its refined composition and rigorous internal structure. (shrink)