The differentiation of trait anxiety and depression in nonclinical and clinical populations is addressed. Following the tripartite model, it is assumed that anxiety and depression share a large portion of negative affectivity, but differ with respect to bodily hyperarousal and anhedonia. In contrast to the tripartite model, NA is subdivided into worry and dysthymia, which leads to a four-variable model of anxiety and depression encompassing emotionality, worry, dysthymia, and anhedonia. Item-level confirmatory factor analyses and latent class cluster analysis based on (...) a large nation-wide representative German sample substantiate the construct validity of the model. Further evidence concerning convergent and discriminant validity with respect to related constructs is obtained in two smaller nonclinical and clinical samples. Factors influencing the association between components of anxiety and depression are discussed. (shrink)

In Homer’s account of the adventurous journey of Odysseus, the song of the sirens was so appealing and tempting that it lured sailors to their deaths. Warned by the goddess Kirke, Odysseus overcame the trap by plugging his crew’s ears with wax. An archaeo-acoustical research expedition undertaken by members of Humboldt University Berlin made sound propagation experiments at the supposedly historical scene at the Galli Islands where it’s said that the sirens originally sung. At the site we broadcasted both synthetic (...) signals and natural voices via loudspeakers in the direction Odysseus most probably should have approached the Siren’s island. Subjective listening as well as objective acoustic analysis of the recorded signals revealed evidence for a combination of site-specific acoustic effects, which may explain the nature and origin of the song of the sirens in Homer. The local arrangement of the three islands deforms the acoustic signals by amplification and by changes in timbre. Two female singers from the Berlin State Opera were asked to sing differently pitched musical intervals to be tested in the Li Galli environment. The experiment evinced that the first overtones would be merged by the echo of the rocks; yet when singing pure thirds and less consonant intervals, which yield higher orders in the overtone series, the voices appear recognisable as being two. As a result, and particularly because Homer stresses the number of exactly two sirens several times, the evidence of our research supports the musicological theory for a rather early existence of enharmonic tunings and most prominently a two-part polyphonic singing of Greek songs. Given that the rocky formation of the Galli Islands most likely didn’t change during the geological tick of just 2,700 years, we conclude that there has been a real acoustic basis for the myth reported by Homer and that a “song of the Sirens”, most probably based on natural voices, was transformed by the particular acoustic conditions of the landscape in such a way that signals were amplified and sent out in one concrete direction. Based on these results, we continue to discuss further leading acoustic theories that offer new insights into the mythology and which were essential to motivate our expedition in the first place. After all, the question remains open what kind of beings the first emitters of the song might have been. (shrink)

The paper builds on both a simply typed term system ${\cal PR}^\omega$ and a computation model on Scott domains via so-called parallel typed while programs (PTWP). The former provides a notion of partial primitive recursive functional on Scott domains $D_\rho$ supporting a suitable concept of parallelism. Computability on Scott domains seems to entail that Kleene's schema of higher type simultaneous course-of-values recursion (scvr) is not reducible to partial primitive recursion. So extensions ${\cal PR}^{\omega e}$ and PTWP $^e$ are studied that (...) are closed under scvr. The twist are certain type 1 Gödel recursors ${\cal R}_k$ for simultaneous partial primitive recursion. Formally, ${\cal R}_k\vec{g}\vec{H}xi$ denotes a function $f_i \in D_{\iota\to\iota}$ , however, ${\cal R}_k$ is modelled such that $f_i$ is finite, or in other words, a partial sequence. As for PTWP $^e$ , the concept of type $\iota\to\iota$ writable variables is introduced, providing the possibility of creating and manipulating partial sequences. It is shown that the PTWP $^e$ -computable functionals coincide with those definable in ${\cal PR}^{\omega e}$ plus a constant for sequential minimisation. In particular, the functionals definable in ${\cal PR}^{\omega e}$ denoted ${\cal R}^{\omega e}$ can be characterised by a subclass of PTWP $^e$ -computable functionals denoted ${\rm PPR}^{\omega e}$ . Moreover, hierarchies of strictly increasing classes ${\cal R}^{\omega e}_n$ in the style of Heinermann and complexity classes ${\rm PPR}^{\omega e}_n$ are introduced such that $\forall n\ge 0. {\cal R}^{\omega e}_n ={\rm PPR}^{\omega e}_n$ . These results extend those for ${\cal PR}^\omega$ and PTWP [Nig94]. Finally, scvr is employed to define for each type $\sigma$ the enumeration functional $E^\sigma$ of all finite elements of $D_\sigma$. (shrink)

The paper studies a domain theoretical notion of primitive recursion over partial sequences in the context of Scott domains. Based on a non-monotone coding of partial sequences, this notion supports a rich concept of parallelism in the sense of Plotkin. The complexity of these functions is analysed by a hierarchy of classes ${\cal E}^{\bot}_n$ similar to the Grzegorczyk classes. The functions considered are characterised by a function algebra ${\cal R}^{\bot}$ generated by continuity preserving operations starting from computable initial functions. Its (...) layers ${\cal R}^{\bot}_n$ are related to those above by showing $\forall n \ge 2.{\cal E}^{\bot}_{n+1} ={\cal R}^{\bot}_n$ , thus generalising results of Schwichtenberg/Müller and Niggl. (shrink)

Habermas' discourse theory stresses the autonomy of public deliberation transcending the spontaneous emergence of private networks of legal relationships between individuals. Only the public discourse which is detached from the inertia of overlapping practical forms of coordination can refer to the ideally designed social work of legitimated interpersonal relationships. The democratic constitution is regarded as a legal institutionalization of the priority of the public forum of discourse. Conceptions related to classical liberalism would question the cognitive potential of public deliberation, and (...) even deny its productivity as a normative frame of reference for (post‐)modern societies which are confronted with the challenge of uncertainty and the continuous process of self‐transformation. (shrink)

Zentrale Denkfiguren der von Wolfgang Klafki begründeten kritisch-konstruktiven Erziehungswissenschaft werden in diesem Buch aufgegriffen und in ihrem Innovationswert für die wissenschaftliche Pädagogik reflektiert. Namhafte Autorinnen und Autoren unterschiedlicher Subdisziplinen und Generationen vertiefen Klafkis Ansatz theoretisch wie methodisch und öffnen Problemstellungen, die bisher nicht bearbeitet worden sind.

We study a notion ofpartial primitive recursion (p.p.r.) including the concept ofparallelism in the context of partial continuous functions of type level one in the sense of [Krei], [Sco82], [Ers]. A variety of subrecursive hierarchies with respect top.p.r. is introduced and it turns out that they all coincide.

Romano Guardini gilt als einer der massgeblichen christlichen Denker des 20. Jahrhunderts. Seine Schriften, philosophische und theologische Abhandlungen, aber auch zahlreiche meditative und spirituelle Texte, haben eine weltweite Verbreitung gefunden und pragen ungebrochen bis heute Generationen von Leserinnen und Lesern. Der vorliegende Band, der aus Anlass des 50. Todestages Romano Guardinis am 1. Oktober 2018 sowie zur Eroffnung des Seligsprechungsprozesses erscheint, versammelt Beitrage namhafter Autorinnen und Autoren. Aus unterschiedlichen Perspektiven widmen sie sich insbesondere Guardinis Buch "Der Herr" uber Person und (...) Botschaft Jesu Christi, aber beispielsweise auch Aspekten der Gottesfrage, der Ethik oder des Gebets. Eine Fundgrube fur alle, die sich der Person und dem Denken Guardinis neu nahern mochten. Mit Beitragen von Hanna-Barbara Gerl-Falkovitz, Jean Greisch, Karl Kardinal Lehmann (+), Peter Reifenberg, Marius Reiser, Peter Schallenberg, P. Kosmas Lars Thielmann OCist, Karl-Heinz Wiesemann. (shrink)