420 research outputs found
Data and code for Bauer et al. (2018) Riv Res Appl
No full textResilience of riparian vegetation after restoration measures on River Inn
Markus Bauer, Romy Harzer, Katharina Strobl and Johannes Kollmann
Journal: River Research and Applications
DOI: 10.1002/rra.3255
Content of the repository
Data: the folder data contains
The raw and processed data files of the vegetation surveys, site conditions, and functional plant traits (.csv)
Outputs: the folder outputs contains
The figures (.tiff) generated.
R: the folder R contains
Scripts (.R) for statistical analyses and to generate all figures used in the manuscript.
This work is licensed under a Creative Commons Attribution 4.0 International License.
When using the data available in this repository, please cite the original publication and the dataset.
Contact [email protected] for any further information
Diptera Collectionis P. Gabriel Strobl - I. (Vorwort und Exemplare-Nr. 1 bis 1890).
No full textIm Rahmen einer Revision der Dipteren-Kollektion Strobl werden beginnend mit der vorliegenden Mitteilung in unregelmäßiger Folge Zusammenstellungen des bearbeiteten Materials gegeben. Diese Übersichten beinhalten einerseits die Hauptsammlung, zum anderen die auch bei der Restaurierung der Kollektion separat belassene "Typen-Sammlung" P. Gabriel Strobls. - Im ersten Teil werden 1890 Exemplare (nur Acalyptrata) erfaßt. Ein Vorwort erläutert den derzeitigen Zustand der Sammlung sowie Details und Verfahrensweise der Revision durch den Verfasser.The present paper is the first part of a revision of Strobl\u27s collection of Diptera. Further surveys of the evaluated material will be published as the occasion arises. They will include both the main collection and Strobl\u27s "collection of types" which was preserved as a separate body in the restoration of the collection. - The first part covers 1890 specimens (Acalyptrata only). The preface describes the present state of the collection and details and methods of its revision by the author
First Class Constrained Systems and Twisting of Courant Algebroids by a Closed 4-form
No full text25 pages, invited and refereed contribution to the Wolfgang Kummer memorial volumeWe show that in analogy to the introduction of Poisson structures twisted by a closed 3-form by Park and Klimcik-Strobl, the study of three dimensional sigma models with Wess-Zumino term leads in a likewise way to twisting of Courant algebroid structures by closed 4-forms H. The presentation is kept pedagogical and accessible to physicists as well as to mathematicians, explaining in detail in particular the interplay of field transformations in a sigma model with the type of geometrical structures induced on a target. In fact, as we also show, even if one does not know the mathematical concept of a Courant algebroid, the study of a rather general class of 3-dimensional sigma models leads one to that notion by itself. Courant algebroids became of relevance for mathematical physics lately from several perspectives - like for example by means of using generalized complex structures in String Theory. One may expect that their twisting by the curvature H of some 3-form Ramond-Ramond gauge field will become of relevance as well
First Class Constrained Systems and Twisting of Courant Algebroids by a Closed 4-form
No full text25 pages, invited and refereed contribution to the Wolfgang Kummer memorial volumeWe show that in analogy to the introduction of Poisson structures twisted by a closed 3-form by Park and Klimcik-Strobl, the study of three dimensional sigma models with Wess-Zumino term leads in a likewise way to twisting of Courant algebroid structures by closed 4-forms H. The presentation is kept pedagogical and accessible to physicists as well as to mathematicians, explaining in detail in particular the interplay of field transformations in a sigma model with the type of geometrical structures induced on a target. In fact, as we also show, even if one does not know the mathematical concept of a Courant algebroid, the study of a rather general class of 3-dimensional sigma models leads one to that notion by itself. Courant algebroids became of relevance for mathematical physics lately from several perspectives - like for example by means of using generalized complex structures in String Theory. One may expect that their twisting by the curvature H of some 3-form Ramond-Ramond gauge field will become of relevance as well
Author Correction: A prospective observational study of post-COVID-19 chronic fatigue syndrome following the first pandemic wave in Germany and biomarkers associated with symptom severity (Nature Communications, (2022), 13, 1, (5104), 10.1038/s41467-022-3
No full textIn the author list of this article, the names of the authorswere incorrectly listed with initials and family name only. The incorrect author list read as “C. Kedor, H. Freitag, L. Meyer-Arndt, K. Wittke, L. G. Hanitsch, T. Zoller, F. Steinbeis, M. Haffke, G. Rudolf, B. Heidecker, T. Bobbert, J. Spranger, H. D. Volk, C. Skurk, F. Konietschke, F. Paul, U. Behrends, J. Bellmann-Strobl and C. Scheibenbogen”. The author list has now been amended to include the given and family names in the HTML and PDF versions of the article. The corrected author list reads as “Claudia Kedor, Helma Freitag, Lil Meyer-Arndt, Kirsten Wittke, Leif G. Hanitsch, Thomas Zoller, Fridolin Steinbeis, Milan Haffke, Gordon Rudolf, Bettina Heidecker, Thomas Bobbert, Joachim Spranger, Hans- Dieter Volk, Carsten Skurk, Frank Konietschke, Friedemann Paul, Uta Behrends, Judith Bellmann-Strobl and Carmen Scheibenbogen”
First Class Constrained Systems and Twisting of Courant Algebroids by a Closed 4-form
No full text25 pages, invited and refereed contribution to the Wolfgang Kummer memorial volumeWe show that in analogy to the introduction of Poisson structures twisted by a closed 3-form by Park and Klimcik-Strobl, the study of three dimensional sigma models with Wess-Zumino term leads in a likewise way to twisting of Courant algebroid structures by closed 4-forms H. The presentation is kept pedagogical and accessible to physicists as well as to mathematicians, explaining in detail in particular the interplay of field transformations in a sigma model with the type of geometrical structures induced on a target. In fact, as we also show, even if one does not know the mathematical concept of a Courant algebroid, the study of a rather general class of 3-dimensional sigma models leads one to that notion by itself. Courant algebroids became of relevance for mathematical physics lately from several perspectives - like for example by means of using generalized complex structures in String Theory. One may expect that their twisting by the curvature H of some 3-form Ramond-Ramond gauge field will become of relevance as well
Diffraction in neutron imaging - A review
No full textNeutron imaging is a highly successful experimental technique ever since adequate neutron sources were available. In general, neutron imaging is performed with a wide wavelength spectrum for best flux conditions in transmission geometry. Neutrons provide outstanding features in the penetration of many structural materials, which often makes them more suited for bulk sample studies than other forms of radiation, often in particular as they are also highly sensitive to some light elements, especially Hydrogen. In contrast to neutron scattering applications, imaging resolves macroscopic structures, nowadays down to, in the best case, below 10 micrometre, directly in real space. However, since more than a decade there is a growing number of techniques and applications in neutron imaging that – supported by powerful neutron sources – are taking advantage of wavelength resolved measurements. In this review we summarize and discuss this outstanding development and how wavelength resolved transmission neutron imaging is successfully exploiting diffraction mechanisms to access crystal structure information in the Angstrom regime, which conventionally is probed in reciprocal space by diffraction techniques. In particular the combination of information gained in real space and on crystallographic length scales makes this neutron imaging technique a valuable tool for a wide range of new applications, while it also qualifies neutron imaging to fully profit from the new generation of powerful pulsed neutron sources.Fil: Woracek, Robin. European Spallation Source ERIC; SueciaFil: Santisteban, Javier Roberto. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; ArgentinaFil: Fedrigo, Anna. European Spallation Source ERIC; Suecia. Paul-Scherrer Institute; Suiza. Universidad de Copenhagen; DinamarcaFil: Strobl, Markus. European Spallation Source ERIC; Sueci
First Class Constrained Systems and Twisting of Courant Algebroids by a Closed 4-form
No full text25 pages, invited and refereed contribution to the Wolfgang Kummer memorial volumeWe show that in analogy to the introduction of Poisson structures twisted by a closed 3-form by Park and Klimcik-Strobl, the study of three dimensional sigma models with Wess-Zumino term leads in a likewise way to twisting of Courant algebroid structures by closed 4-forms H. The presentation is kept pedagogical and accessible to physicists as well as to mathematicians, explaining in detail in particular the interplay of field transformations in a sigma model with the type of geometrical structures induced on a target. In fact, as we also show, even if one does not know the mathematical concept of a Courant algebroid, the study of a rather general class of 3-dimensional sigma models leads one to that notion by itself. Courant algebroids became of relevance for mathematical physics lately from several perspectives - like for example by means of using generalized complex structures in String Theory. One may expect that their twisting by the curvature H of some 3-form Ramond-Ramond gauge field will become of relevance as well
First Class Constrained Systems and Twisting of Courant Algebroids by a Closed 4-form
No full text25 pages, invited and refereed contribution to the Wolfgang Kummer memorial volumeWe show that in analogy to the introduction of Poisson structures twisted by a closed 3-form by Park and Klimcik-Strobl, the study of three dimensional sigma models with Wess-Zumino term leads in a likewise way to twisting of Courant algebroid structures by closed 4-forms H. The presentation is kept pedagogical and accessible to physicists as well as to mathematicians, explaining in detail in particular the interplay of field transformations in a sigma model with the type of geometrical structures induced on a target. In fact, as we also show, even if one does not know the mathematical concept of a Courant algebroid, the study of a rather general class of 3-dimensional sigma models leads one to that notion by itself. Courant algebroids became of relevance for mathematical physics lately from several perspectives - like for example by means of using generalized complex structures in String Theory. One may expect that their twisting by the curvature H of some 3-form Ramond-Ramond gauge field will become of relevance as well
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