Developing and Deploying an XML-based Learning Content Management System at the FernUniversität Hagen

This paper is a report about the FuXML project carried out at the FernUniversität Hagen. FuXML is a Learning Content Management System (LCMS) aimed at providing a practical and efficient solution for the issues attributed to authoring, maintenance, production and distribution of online and offline distance learning material. The paper presents the environment for which the system was conceived and describes the technical realisation. We discuss the reasons for specific implementation decisions and also address the integration of the system within the organisational and technical infrastructure of the university.

Spectral bounds and basis results for non-self-adjoint pencils, with an application to Hagen-Poiseuille flow

We obtain eigenvalue enclosures and basisness results for eigen- and associated functions of a non-self-adjoint unbounded linear operator pencil A−λBA−λB in which BB is uniformly positive and the essential spectrum of the pencil is empty. Both Riesz basisness and Bari basisness results are obtained. The results are applied to a system of singular differential equations arising in the study of Hagen–Poiseuille flow with non-axisymmetric disturbances.

Was hat Max Weber mit Kātib Čelebi zu tun? Ein Annäherungsversuch an Gottfried Hagen

This article responds to Gottfried Hagen’s extensive review (see Der Islam 2/2013) of my book Islamische Verantwortungsethik im 17. Jahrhundert. Ein weberianisches Verständnis der Handlungsvorstellungen Kātib Čelebis (1609– 1657). Whilst I benefitted greatly from some of Hagen’s critical remarks and his- torical elucidations, his review not only misstates crucial passages of my book but also largely disregards its main objective, which is to develop a systematic model for understanding Kātib Čelebi’s ethical stance. Besides reiterating cru- cial arguments ignored and rectifying central aspects misrepresented in Hagen’s review, I here ask how the more fundamental misunderstandings – exceeding differences in theoretical positions or empirical observations – between the au- thor’s intentions and the reviewer’s reception may be explained. Gottfried Hagen’s historiographical perspective on Kātib Čelebi diverges from my sociological take on the same subject matter to the extent that both perspectives are struggling to enter into dialogue. Such dialogue, however, remains highly desirable so as to complement a historical reconstruction of Kātib Čelebi’s life and times with a systematic, theoretically grounded understanding of his views.

Süsskind von Trimberg, der jüdische Minnesänger : Nach von Hagen ...

Franz Delitzsch

Süsskind von Trimberg, der jüdische Minnesänger : Nach von Hagen ...

Franz Delitzsch

Beiträge zur Flora des Ruhrtales bei Hagen-Herdecke und der angrenzenden Höhenzüge

Von Franz Meschede

Ludwig Gabillon als Hagen, Rollenbild, in: Friedrich Hebbel: Die Nibelungen, Wien, 1863

Signatur des Originals: S 36/F00487

Otfried Hagen als Siegfried, Rollenbild, in: Richard Wagner: Der Ring des Nibelungen

Signatur des Originals: S 36/F04339

Otfried Hagen als Siegmund, Rollenbild, Kniestück, in: Richard Wagner: Die Walküre

Signatur des Originals: S 36/F04340

Otfried Hagen als Siegmund, Rollenbild, Kniestück, in: Richard Wagner: Die Walküre

Signatur des Originals: S 36/F04341

Otfried Hagen als Herodes, Rollenbild, Kniestück, in: Richard Strauss: Salome

Signatur des Originals: S 36/F04342

Otfried Hagen als Herodes, Rollenbild, Kniestück, in: Richard Strauss: Salome

Signatur des Originals: S 36/F04343

Wilhelm Fenten als Hagen, Rollenbild, Brustbild, in: Richard Wagner: Götterdämmerung

Signatur des Originals: S 36/F08549