---
_id: '45471'
author:
- first_name: Christoph
  full_name: Vogelsang, Christoph
  id: '4245'
  last_name: Vogelsang
  orcid: 0000-0002-5804-1855
- first_name: Andreas
  full_name: Borowski, Andreas
  last_name: Borowski
- first_name: Christoph
  full_name: Kulgemeyer, Christoph
  id: '84533'
  last_name: Kulgemeyer
- first_name: Josef
  full_name: Riese, Josef
  id: '429'
  last_name: Riese
  orcid: 0000-0003-2927-2619
- first_name: Peter
  full_name: Reinhold, Peter
  id: '416'
  last_name: Reinhold
- first_name: Horst
  full_name: Schecker, Horst
  last_name: Schecker
- first_name: David
  full_name: Buschütter, David
  last_name: Buschütter
- first_name: Patrick
  full_name: Enkrott, Patrick
  last_name: Enkrott
- first_name: Maren
  full_name: Kempin, Maren
  last_name: Kempin
- first_name: Jan
  full_name: Schröder, Jan
  last_name: Schröder
citation:
  ama: 'Vogelsang C, Borowski A, Kulgemeyer C, et al. Performance-Oriented Testing
    and Training in Teacher Education. In: Zlatkin-Troitschanskaia O, Toepper M, Pant
    HA, Lautenbach C, Kuhn C, eds. <i>Student Learning Outcomes Assessment in Higher
    Education – Perspectives, Concepts and Approaches for Research, Transfer and Implementation
    (KoKoHs Working Papers, 12)</i>. ; 2019:40-43.'
  apa: Vogelsang, C., Borowski, A., Kulgemeyer, C., Riese, J., Reinhold, P., Schecker,
    H., Buschütter, D., Enkrott, P., Kempin, M., &#38; Schröder, J. (2019). Performance-Oriented
    Testing and Training in Teacher Education. In O. Zlatkin-Troitschanskaia, M. Toepper,
    H. A. Pant, C. Lautenbach, &#38; C. Kuhn (Eds.), <i>Student Learning Outcomes
    Assessment in Higher Education – Perspectives, Concepts and Approaches for Research,
    Transfer and Implementation (KoKoHs Working Papers, 12)</i> (pp. 40–43).
  bibtex: '@inbook{Vogelsang_Borowski_Kulgemeyer_Riese_Reinhold_Schecker_Buschütter_Enkrott_Kempin_Schröder_2019,
    title={Performance-Oriented Testing and Training in Teacher Education}, booktitle={Student
    Learning Outcomes Assessment in Higher Education – Perspectives, Concepts and
    Approaches for Research, Transfer and Implementation (KoKoHs Working Papers, 12)},
    author={Vogelsang, Christoph and Borowski, Andreas and Kulgemeyer, Christoph and
    Riese, Josef and Reinhold, Peter and Schecker, Horst and Buschütter, David and
    Enkrott, Patrick and Kempin, Maren and Schröder, Jan}, editor={Zlatkin-Troitschanskaia,
    Olga and Toepper, Miriam and Pant, Hans Anand and Lautenbach, Corinna and Kuhn,
    Christiane}, year={2019}, pages={40–43} }'
  chicago: Vogelsang, Christoph, Andreas Borowski, Christoph Kulgemeyer, Josef Riese,
    Peter Reinhold, Horst Schecker, David Buschütter, Patrick Enkrott, Maren Kempin,
    and Jan Schröder. “Performance-Oriented Testing and Training in Teacher Education.”
    In <i>Student Learning Outcomes Assessment in Higher Education – Perspectives,
    Concepts and Approaches for Research, Transfer and Implementation (KoKoHs Working
    Papers, 12)</i>, edited by Olga Zlatkin-Troitschanskaia, Miriam Toepper, Hans
    Anand Pant, Corinna Lautenbach, and Christiane Kuhn, 40–43, 2019.
  ieee: C. Vogelsang <i>et al.</i>, “Performance-Oriented Testing and Training in
    Teacher Education,” in <i>Student Learning Outcomes Assessment in Higher Education
    – Perspectives, Concepts and Approaches for Research, Transfer and Implementation
    (KoKoHs Working Papers, 12)</i>, O. Zlatkin-Troitschanskaia, M. Toepper, H. A.
    Pant, C. Lautenbach, and C. Kuhn, Eds. 2019, pp. 40–43.
  mla: Vogelsang, Christoph, et al. “Performance-Oriented Testing and Training in
    Teacher Education.” <i>Student Learning Outcomes Assessment in Higher Education
    – Perspectives, Concepts and Approaches for Research, Transfer and Implementation
    (KoKoHs Working Papers, 12)</i>, edited by Olga Zlatkin-Troitschanskaia et al.,
    2019, pp. 40–43.
  short: 'C. Vogelsang, A. Borowski, C. Kulgemeyer, J. Riese, P. Reinhold, H. Schecker,
    D. Buschütter, P. Enkrott, M. Kempin, J. Schröder, in: O. Zlatkin-Troitschanskaia,
    M. Toepper, H.A. Pant, C. Lautenbach, C. Kuhn (Eds.), Student Learning Outcomes
    Assessment in Higher Education – Perspectives, Concepts and Approaches for Research,
    Transfer and Implementation (KoKoHs Working Papers, 12), 2019, pp. 40–43.'
date_created: 2023-06-05T16:40:02Z
date_updated: 2025-12-03T09:13:40Z
department:
- _id: '299'
- _id: '33'
editor:
- first_name: Olga
  full_name: Zlatkin-Troitschanskaia, Olga
  last_name: Zlatkin-Troitschanskaia
- first_name: Miriam
  full_name: Toepper, Miriam
  last_name: Toepper
- first_name: Hans Anand
  full_name: Pant, Hans Anand
  last_name: Pant
- first_name: Corinna
  full_name: Lautenbach, Corinna
  last_name: Lautenbach
- first_name: Christiane
  full_name: Kuhn, Christiane
  last_name: Kuhn
language:
- iso: eng
page: 40-43
publication: Student Learning Outcomes Assessment in Higher Education – Perspectives,
  Concepts and Approaches for Research, Transfer and Implementation (KoKoHs Working
  Papers, 12)
status: public
title: Performance-Oriented Testing and Training in Teacher Education
type: book_chapter
user_id: '4245'
year: '2019'
...
---
_id: '45478'
author:
- first_name: Christoph
  full_name: Vogelsang, Christoph
  id: '4245'
  last_name: Vogelsang
  orcid: 0000-0002-5804-1855
- first_name: Josef
  full_name: Riese, Josef
  id: '429'
  last_name: Riese
  orcid: 0000-0003-2927-2619
- first_name: Andreas
  full_name: Borowski, Andreas
  last_name: Borowski
- first_name: Christoph
  full_name: Kulgemeyer, Christoph
  id: '84533'
  last_name: Kulgemeyer
citation:
  ama: 'Vogelsang C, Riese J, Borowski A, Kulgemeyer C. Profile-P+: Kompetenz und
    Performanz im Lehramtsstudium Physik. In: Maurer C, ed. <i>Naturwissenschaftliche
    Bildung als Grundlage für berufliche und gesellschaftliche Teilhabe. Gesellschaft
    für Didaktik der Chemie und Physik. Jahrestagung in Kiel 2018</i>. Vol 39. ; 2019:345-348.'
  apa: 'Vogelsang, C., Riese, J., Borowski, A., &#38; Kulgemeyer, C. (2019). Profile-P+:
    Kompetenz und Performanz im Lehramtsstudium Physik. In C. Maurer (Ed.), <i>Naturwissenschaftliche
    Bildung als Grundlage für berufliche und gesellschaftliche Teilhabe. Gesellschaft
    für Didaktik der Chemie und Physik. Jahrestagung in Kiel 2018</i> (Vol. 39, pp.
    345–348).'
  bibtex: '@inproceedings{Vogelsang_Riese_Borowski_Kulgemeyer_2019, title={Profile-P+:
    Kompetenz und Performanz im Lehramtsstudium Physik}, volume={39}, booktitle={Naturwissenschaftliche
    Bildung als Grundlage für berufliche und gesellschaftliche Teilhabe. Gesellschaft
    für Didaktik der Chemie und Physik. Jahrestagung in Kiel 2018}, author={Vogelsang,
    Christoph and Riese, Josef and Borowski, Andreas and Kulgemeyer, Christoph}, editor={Maurer,
    Christian}, year={2019}, pages={345–348} }'
  chicago: 'Vogelsang, Christoph, Josef Riese, Andreas Borowski, and Christoph Kulgemeyer.
    “Profile-P+: Kompetenz und Performanz im Lehramtsstudium Physik.” In <i>Naturwissenschaftliche
    Bildung als Grundlage für berufliche und gesellschaftliche Teilhabe. Gesellschaft
    für Didaktik der Chemie und Physik. Jahrestagung in Kiel 2018</i>, edited by Christian
    Maurer, 39:345–48, 2019.'
  ieee: 'C. Vogelsang, J. Riese, A. Borowski, and C. Kulgemeyer, “Profile-P+: Kompetenz
    und Performanz im Lehramtsstudium Physik,” in <i>Naturwissenschaftliche Bildung
    als Grundlage für berufliche und gesellschaftliche Teilhabe. Gesellschaft für
    Didaktik der Chemie und Physik. Jahrestagung in Kiel 2018</i>, 2019, vol. 39,
    pp. 345–348.'
  mla: 'Vogelsang, Christoph, et al. “Profile-P+: Kompetenz und Performanz im Lehramtsstudium
    Physik.” <i>Naturwissenschaftliche Bildung als Grundlage für berufliche und gesellschaftliche
    Teilhabe. Gesellschaft für Didaktik der Chemie und Physik. Jahrestagung in Kiel
    2018</i>, edited by Christian Maurer, vol. 39, 2019, pp. 345–48.'
  short: 'C. Vogelsang, J. Riese, A. Borowski, C. Kulgemeyer, in: C. Maurer (Ed.),
    Naturwissenschaftliche Bildung als Grundlage für berufliche und gesellschaftliche
    Teilhabe. Gesellschaft für Didaktik der Chemie und Physik. Jahrestagung in Kiel
    2018, 2019, pp. 345–348.'
date_created: 2023-06-05T17:57:09Z
date_updated: 2025-12-03T09:13:56Z
department:
- _id: '299'
- _id: '33'
editor:
- first_name: Christian
  full_name: Maurer, Christian
  last_name: Maurer
intvolume: '        39'
language:
- iso: ger
page: 345-348
publication: Naturwissenschaftliche Bildung als Grundlage für berufliche und gesellschaftliche
  Teilhabe. Gesellschaft für Didaktik der Chemie und Physik. Jahrestagung in Kiel
  2018
status: public
title: 'Profile-P+: Kompetenz und Performanz im Lehramtsstudium Physik'
type: conference
user_id: '4245'
volume: 39
year: '2019'
...
---
_id: '45477'
author:
- first_name: Jan
  full_name: Schröder, Jan
  last_name: Schröder
- first_name: Christoph
  full_name: Vogelsang, Christoph
  id: '4245'
  last_name: Vogelsang
  orcid: 0000-0002-5804-1855
- first_name: Josef
  full_name: Riese, Josef
  id: '429'
  last_name: Riese
  orcid: 0000-0003-2927-2619
citation:
  ama: 'Schröder J, Vogelsang C, Riese J. Erfassung der Fähigkeit zur Unterrichtsplanung
    im Physikunterricht. In: Maurer C, ed. <i>Naturwissenschaftliche Bildung als Grundlage
    für berufliche und gesellschaftliche Teilhabe. Gesellschaft für Didaktik der Chemie
    und Physik. Jahrestagung in Kiel 2018</i>. Vol 39. ; 2019:353-356.'
  apa: Schröder, J., Vogelsang, C., &#38; Riese, J. (2019). Erfassung der Fähigkeit
    zur Unterrichtsplanung im Physikunterricht. In C. Maurer (Ed.), <i>Naturwissenschaftliche
    Bildung als Grundlage für berufliche und gesellschaftliche Teilhabe. Gesellschaft
    für Didaktik der Chemie und Physik. Jahrestagung in Kiel 2018</i> (Vol. 39, pp.
    353–356).
  bibtex: '@inproceedings{Schröder_Vogelsang_Riese_2019, title={Erfassung der Fähigkeit
    zur Unterrichtsplanung im Physikunterricht}, volume={39}, booktitle={Naturwissenschaftliche
    Bildung als Grundlage für berufliche und gesellschaftliche Teilhabe. Gesellschaft
    für Didaktik der Chemie und Physik. Jahrestagung in Kiel 2018}, author={Schröder,
    Jan and Vogelsang, Christoph and Riese, Josef}, editor={Maurer, Christian}, year={2019},
    pages={353–356} }'
  chicago: Schröder, Jan, Christoph Vogelsang, and Josef Riese. “Erfassung der Fähigkeit
    zur Unterrichtsplanung im Physikunterricht.” In <i>Naturwissenschaftliche Bildung
    als Grundlage für berufliche und gesellschaftliche Teilhabe. Gesellschaft für
    Didaktik der Chemie und Physik. Jahrestagung in Kiel 2018</i>, edited by Christian
    Maurer, 39:353–56, 2019.
  ieee: J. Schröder, C. Vogelsang, and J. Riese, “Erfassung der Fähigkeit zur Unterrichtsplanung
    im Physikunterricht,” in <i>Naturwissenschaftliche Bildung als Grundlage für berufliche
    und gesellschaftliche Teilhabe. Gesellschaft für Didaktik der Chemie und Physik.
    Jahrestagung in Kiel 2018</i>, 2019, vol. 39, pp. 353–356.
  mla: Schröder, Jan, et al. “Erfassung der Fähigkeit zur Unterrichtsplanung im Physikunterricht.”
    <i>Naturwissenschaftliche Bildung als Grundlage für berufliche und gesellschaftliche
    Teilhabe. Gesellschaft für Didaktik der Chemie und Physik. Jahrestagung in Kiel
    2018</i>, edited by Christian Maurer, vol. 39, 2019, pp. 353–56.
  short: 'J. Schröder, C. Vogelsang, J. Riese, in: C. Maurer (Ed.), Naturwissenschaftliche
    Bildung als Grundlage für berufliche und gesellschaftliche Teilhabe. Gesellschaft
    für Didaktik der Chemie und Physik. Jahrestagung in Kiel 2018, 2019, pp. 353–356.'
date_created: 2023-06-05T17:54:11Z
date_updated: 2025-12-03T09:13:49Z
department:
- _id: '299'
- _id: '33'
editor:
- first_name: Christian
  full_name: Maurer, Christian
  last_name: Maurer
intvolume: '        39'
language:
- iso: ger
page: 353-356
publication: Naturwissenschaftliche Bildung als Grundlage für berufliche und gesellschaftliche
  Teilhabe. Gesellschaft für Didaktik der Chemie und Physik. Jahrestagung in Kiel
  2018
status: public
title: Erfassung der Fähigkeit zur Unterrichtsplanung im Physikunterricht
type: conference
user_id: '4245'
volume: 39
year: '2019'
...
---
_id: '62775'
author:
- first_name: Alexander
  full_name: Schowtjak, Alexander
  last_name: Schowtjak
- first_name: Shuhan
  full_name: Wang, Shuhan
  last_name: Wang
- first_name: Oliver
  full_name: Hering, Oliver
  last_name: Hering
- first_name: Till
  full_name: Clausmeyer, Till
  last_name: Clausmeyer
- first_name: Johannes
  full_name: Lohmar, Johannes
  last_name: Lohmar
- first_name: Robin
  full_name: Schulte, Robin
  last_name: Schulte
- first_name: Richard
  full_name: Ostwald, Richard
  id: '106876'
  last_name: Ostwald
  orcid: 0000-0003-2147-8444
- first_name: Gerhard
  full_name: Hirt, Gerhard
  last_name: Hirt
- first_name: A. Erman
  full_name: Tekkaya, A. Erman
  last_name: Tekkaya
citation:
  ama: Schowtjak A, Wang S, Hering O, et al. Prediction and analysis of damage evolution
    during caliber rolling and subsequent cold forward extrusion. <i>Production Engineering</i>.
    2019;14(1):33-41. doi:<a href="https://doi.org/10.1007/s11740-019-00935-x">10.1007/s11740-019-00935-x</a>
  apa: Schowtjak, A., Wang, S., Hering, O., Clausmeyer, T., Lohmar, J., Schulte, R.,
    Ostwald, R., Hirt, G., &#38; Tekkaya, A. E. (2019). Prediction and analysis of
    damage evolution during caliber rolling and subsequent cold forward extrusion.
    <i>Production Engineering</i>, <i>14</i>(1), 33–41. <a href="https://doi.org/10.1007/s11740-019-00935-x">https://doi.org/10.1007/s11740-019-00935-x</a>
  bibtex: '@article{Schowtjak_Wang_Hering_Clausmeyer_Lohmar_Schulte_Ostwald_Hirt_Tekkaya_2019,
    title={Prediction and analysis of damage evolution during caliber rolling and
    subsequent cold forward extrusion}, volume={14}, DOI={<a href="https://doi.org/10.1007/s11740-019-00935-x">10.1007/s11740-019-00935-x</a>},
    number={1}, journal={Production Engineering}, publisher={Springer Science and
    Business Media LLC}, author={Schowtjak, Alexander and Wang, Shuhan and Hering,
    Oliver and Clausmeyer, Till and Lohmar, Johannes and Schulte, Robin and Ostwald,
    Richard and Hirt, Gerhard and Tekkaya, A. Erman}, year={2019}, pages={33–41} }'
  chicago: 'Schowtjak, Alexander, Shuhan Wang, Oliver Hering, Till Clausmeyer, Johannes
    Lohmar, Robin Schulte, Richard Ostwald, Gerhard Hirt, and A. Erman Tekkaya. “Prediction
    and Analysis of Damage Evolution during Caliber Rolling and Subsequent Cold Forward
    Extrusion.” <i>Production Engineering</i> 14, no. 1 (2019): 33–41. <a href="https://doi.org/10.1007/s11740-019-00935-x">https://doi.org/10.1007/s11740-019-00935-x</a>.'
  ieee: 'A. Schowtjak <i>et al.</i>, “Prediction and analysis of damage evolution
    during caliber rolling and subsequent cold forward extrusion,” <i>Production Engineering</i>,
    vol. 14, no. 1, pp. 33–41, 2019, doi: <a href="https://doi.org/10.1007/s11740-019-00935-x">10.1007/s11740-019-00935-x</a>.'
  mla: Schowtjak, Alexander, et al. “Prediction and Analysis of Damage Evolution during
    Caliber Rolling and Subsequent Cold Forward Extrusion.” <i>Production Engineering</i>,
    vol. 14, no. 1, Springer Science and Business Media LLC, 2019, pp. 33–41, doi:<a
    href="https://doi.org/10.1007/s11740-019-00935-x">10.1007/s11740-019-00935-x</a>.
  short: A. Schowtjak, S. Wang, O. Hering, T. Clausmeyer, J. Lohmar, R. Schulte, R.
    Ostwald, G. Hirt, A.E. Tekkaya, Production Engineering 14 (2019) 33–41.
date_created: 2025-12-03T12:56:37Z
date_updated: 2025-12-03T12:57:33Z
department:
- _id: '952'
- _id: '321'
doi: 10.1007/s11740-019-00935-x
intvolume: '        14'
issue: '1'
language:
- iso: eng
page: 33-41
publication: Production Engineering
publication_identifier:
  issn:
  - 0944-6524
  - 1863-7353
publication_status: published
publisher: Springer Science and Business Media LLC
quality_controlled: '1'
status: public
title: Prediction and analysis of damage evolution during caliber rolling and subsequent
  cold forward extrusion
type: journal_article
user_id: '85414'
volume: 14
year: '2019'
...
---
_id: '62779'
author:
- first_name: Richard
  full_name: Ostwald, Richard
  id: '106876'
  last_name: Ostwald
  orcid: 0000-0003-2147-8444
- first_name: Ellen
  full_name: Kuhl, Ellen
  last_name: Kuhl
- first_name: Andreas
  full_name: Menzel, Andreas
  last_name: Menzel
citation:
  ama: Ostwald R, Kuhl E, Menzel A. On the implementation of finite deformation gradient-enhanced
    damage models. <i>Computational Mechanics</i>. 2019;64(3):847-877. doi:<a href="https://doi.org/10.1007/s00466-019-01684-5">10.1007/s00466-019-01684-5</a>
  apa: Ostwald, R., Kuhl, E., &#38; Menzel, A. (2019). On the implementation of finite
    deformation gradient-enhanced damage models. <i>Computational Mechanics</i>, <i>64</i>(3),
    847–877. <a href="https://doi.org/10.1007/s00466-019-01684-5">https://doi.org/10.1007/s00466-019-01684-5</a>
  bibtex: '@article{Ostwald_Kuhl_Menzel_2019, title={On the implementation of finite
    deformation gradient-enhanced damage models}, volume={64}, DOI={<a href="https://doi.org/10.1007/s00466-019-01684-5">10.1007/s00466-019-01684-5</a>},
    number={3}, journal={Computational Mechanics}, publisher={Springer Science and
    Business Media LLC}, author={Ostwald, Richard and Kuhl, Ellen and Menzel, Andreas},
    year={2019}, pages={847–877} }'
  chicago: 'Ostwald, Richard, Ellen Kuhl, and Andreas Menzel. “On the Implementation
    of Finite Deformation Gradient-Enhanced Damage Models.” <i>Computational Mechanics</i>
    64, no. 3 (2019): 847–77. <a href="https://doi.org/10.1007/s00466-019-01684-5">https://doi.org/10.1007/s00466-019-01684-5</a>.'
  ieee: 'R. Ostwald, E. Kuhl, and A. Menzel, “On the implementation of finite deformation
    gradient-enhanced damage models,” <i>Computational Mechanics</i>, vol. 64, no.
    3, pp. 847–877, 2019, doi: <a href="https://doi.org/10.1007/s00466-019-01684-5">10.1007/s00466-019-01684-5</a>.'
  mla: Ostwald, Richard, et al. “On the Implementation of Finite Deformation Gradient-Enhanced
    Damage Models.” <i>Computational Mechanics</i>, vol. 64, no. 3, Springer Science
    and Business Media LLC, 2019, pp. 847–77, doi:<a href="https://doi.org/10.1007/s00466-019-01684-5">10.1007/s00466-019-01684-5</a>.
  short: R. Ostwald, E. Kuhl, A. Menzel, Computational Mechanics 64 (2019) 847–877.
date_created: 2025-12-03T13:02:41Z
date_updated: 2025-12-03T13:03:51Z
department:
- _id: '952'
- _id: '321'
doi: 10.1007/s00466-019-01684-5
intvolume: '        64'
issue: '3'
language:
- iso: eng
page: 847-877
publication: Computational Mechanics
publication_identifier:
  issn:
  - 0178-7675
  - 1432-0924
publication_status: published
publisher: Springer Science and Business Media LLC
quality_controlled: '1'
status: public
title: On the implementation of finite deformation gradient-enhanced damage models
type: journal_article
user_id: '85414'
volume: 64
year: '2019'
...
---
_id: '23756'
abstract:
- lang: eng
  text: "Creativity is perceived to be one of the core competences to succeed in the
    modern world. It is\r\nconnected to art, music, dancing, etc., but there is just
    little insight into the role of creativity in\r\nscience. As data analysis plays
    a major role in science, creative thinking has to be used to form\r\ntheories
    out of observations. This study uses models-of-data to represent the mental model
    of\r\nthe students. Within models-of-data different observations and previous
    knowledge are linked\r\nthrough different types of links, e.g. causal links. The
    goal of this study was to examine the\r\ncreative aspect of data evaluation in
    presence of anomalous data. The students were confronted\r\nwith two experiments
    which contradicted each other with regard to the underlying theory.\r\nAfterwards
    the students were asked to decide about their favored theory and reasoning about\r\ntheir
    choice in their lab reports. The model-of-data, which was reconstructed from the
    lab\r\nreports of the students, was used to extract creative aspects in the mental
    modelling process.\r\nFurthermore, a pre-post-questionnaire on epistemological
    beliefs of the students was\r\nconducted. Students mostly acquired an unscientific
    view on epistemology in school. The\r\nquestion was whether the confrontation
    with anomalous data and the triggering of creative\r\nmodelling processes have
    any influence on this.\r\nThe results show that most students did not take anomalous
    data into account in their modelling\r\nprocesses. They did either not recognise
    or just ignore the data. Just a few students worked on\r\ntheir theory because
    of the new, contradictory data. The students working on their theory\r\nscored
    higher in the post-questionnaire, so a positive effect of creativity on scientific\r\nepistemology
    can be assumed. Thus, creativity obviously gets a part of science and should be\r\ntaught
    in school science in order to make students aware of their own creative potential."
author:
- first_name: Pascal
  full_name: Pollmeier, Pascal
  id: '44191'
  last_name: Pollmeier
- first_name: Sabine
  full_name: Fechner, Sabine
  id: '54823'
  last_name: Fechner
  orcid: 0000-0001-5645-5870
citation:
  ama: 'Pollmeier P, Fechner S. Creativity in data analysis through confrontation
    with anomalous data. In: Levrini O, Tasquir G, Kaya E, Vesterinen V-M, eds. <i>The
    Beauty and Pleasure of Understanding: Engaging with Contemporary Challenges through
    Science Education. Electronic Proceedings of the ESERA 2019 Conference. </i>.
    ALMA MATER STUDIORUM - University of Bologna; 2019:751-759.'
  apa: 'Pollmeier, P., &#38; Fechner, S. (2019). Creativity in data analysis through
    confrontation with anomalous data. In O. Levrini, G. Tasquir, E. Kaya, &#38; V.-M.
    Vesterinen (Eds.), <i>The beauty and pleasure of understanding: engaging with
    contemporary challenges through science education. Electronic Proceedings of the
    ESERA 2019 Conference. </i> (pp. 751–759). ALMA MATER STUDIORUM - University of
    Bologna.'
  bibtex: '@inproceedings{Pollmeier_Fechner_2019, place={Bologna}, title={Creativity
    in data analysis through confrontation with anomalous data}, booktitle={The beauty
    and pleasure of understanding: engaging with contemporary challenges through science
    education. Electronic Proceedings of the ESERA 2019 Conference. }, publisher={ALMA
    MATER STUDIORUM - University of Bologna}, author={Pollmeier, Pascal and Fechner,
    Sabine}, editor={Levrini, Olivia and Tasquir, Giulia and Kaya, Ebru and Vesterinen,
    Veli-Matti}, year={2019}, pages={751–759} }'
  chicago: 'Pollmeier, Pascal, and Sabine Fechner. “Creativity in Data Analysis through
    Confrontation with Anomalous Data.” In <i>The Beauty and Pleasure of Understanding:
    Engaging with Contemporary Challenges through Science Education. Electronic Proceedings
    of the ESERA 2019 Conference. </i>, edited by Olivia Levrini, Giulia Tasquir,
    Ebru Kaya, and Veli-Matti Vesterinen, 751–59. Bologna: ALMA MATER STUDIORUM -
    University of Bologna, 2019.'
  ieee: 'P. Pollmeier and S. Fechner, “Creativity in data analysis through confrontation
    with anomalous data,” in <i>The beauty and pleasure of understanding: engaging
    with contemporary challenges through science education. Electronic Proceedings
    of the ESERA 2019 Conference. </i>, Bologna, 2019, pp. 751–759.'
  mla: 'Pollmeier, Pascal, and Sabine Fechner. “Creativity in Data Analysis through
    Confrontation with Anomalous Data.” <i>The Beauty and Pleasure of Understanding:
    Engaging with Contemporary Challenges through Science Education. Electronic Proceedings
    of the ESERA 2019 Conference. </i>, edited by Olivia Levrini et al., ALMA MATER
    STUDIORUM - University of Bologna, 2019, pp. 751–59.'
  short: 'P. Pollmeier, S. Fechner, in: O. Levrini, G. Tasquir, E. Kaya, V.-M. Vesterinen
    (Eds.), The Beauty and Pleasure of Understanding: Engaging with Contemporary Challenges
    through Science Education. Electronic Proceedings of the ESERA 2019 Conference.
    , ALMA MATER STUDIORUM - University of Bologna, Bologna, 2019, pp. 751–759.'
conference:
  end_date: 2019-08-30
  location: Bologna
  name: 'ESERA 2019 Conference. The beauty and pleasure of understanding: engaging
    with contemporary challenges through science education,'
  start_date: 2019-08-26
date_created: 2021-09-03T12:45:24Z
date_updated: 2025-12-03T18:11:41Z
ddc:
- '370'
department:
- _id: '386'
editor:
- first_name: Olivia
  full_name: Levrini, Olivia
  last_name: Levrini
- first_name: Giulia
  full_name: Tasquir, Giulia
  last_name: Tasquir
- first_name: Ebru
  full_name: Kaya, Ebru
  last_name: Kaya
- first_name: Veli-Matti
  full_name: Vesterinen, Veli-Matti
  last_name: Vesterinen
has_accepted_license: '1'
keyword:
- epistemology
- conceptual change
- anomalous data
language:
- iso: eng
page: 751-759
place: Bologna
publication: 'The beauty and pleasure of understanding: engaging with contemporary
  challenges through science education. Electronic Proceedings of the ESERA 2019 Conference. '
publication_identifier:
  unknown:
  - 978-88-945874-0-1
publication_status: published
publisher: ALMA MATER STUDIORUM - University of Bologna
quality_controlled: '1'
status: public
title: Creativity in data analysis through confrontation with anomalous data
type: conference
user_id: '54823'
year: '2019'
...
---
_id: '20578'
article_type: original
author:
- first_name: R
  full_name: Driben, R
  last_name: Driben
- first_name: Xuekai
  full_name: Ma, Xuekai
  id: '59416'
  last_name: Ma
- first_name: Stefan
  full_name: Schumacher, Stefan
  id: '27271'
  last_name: Schumacher
  orcid: 0000-0003-4042-4951
- first_name: Torsten
  full_name: Meier, Torsten
  id: '344'
  last_name: Meier
  orcid: 0000-0001-8864-2072
citation:
  ama: Driben R, Ma X, Schumacher S, Meier T. Bloch oscillations of multidimensional
    dark soliton wave packets and light bullets. <i>Optics Letters</i>. 2019;44(6):1327-1330.
    doi:<a href="https://doi.org/10.1364/ol.44.001327">10.1364/ol.44.001327</a>
  apa: Driben, R., Ma, X., Schumacher, S., &#38; Meier, T. (2019). Bloch oscillations
    of multidimensional dark soliton wave packets and light bullets. <i>Optics Letters</i>,
    <i>44</i>(6), 1327–1330. <a href="https://doi.org/10.1364/ol.44.001327">https://doi.org/10.1364/ol.44.001327</a>
  bibtex: '@article{Driben_Ma_Schumacher_Meier_2019, title={Bloch oscillations of
    multidimensional dark soliton wave packets and light bullets}, volume={44}, DOI={<a
    href="https://doi.org/10.1364/ol.44.001327">10.1364/ol.44.001327</a>}, number={6},
    journal={Optics Letters}, author={Driben, R and Ma, Xuekai and Schumacher, Stefan
    and Meier, Torsten}, year={2019}, pages={1327–1330} }'
  chicago: 'Driben, R, Xuekai Ma, Stefan Schumacher, and Torsten Meier. “Bloch Oscillations
    of Multidimensional Dark Soliton Wave Packets and Light Bullets.” <i>Optics Letters</i>
    44, no. 6 (2019): 1327–30. <a href="https://doi.org/10.1364/ol.44.001327">https://doi.org/10.1364/ol.44.001327</a>.'
  ieee: 'R. Driben, X. Ma, S. Schumacher, and T. Meier, “Bloch oscillations of multidimensional
    dark soliton wave packets and light bullets,” <i>Optics Letters</i>, vol. 44,
    no. 6, pp. 1327–1330, 2019, doi: <a href="https://doi.org/10.1364/ol.44.001327">10.1364/ol.44.001327</a>.'
  mla: Driben, R., et al. “Bloch Oscillations of Multidimensional Dark Soliton Wave
    Packets and Light Bullets.” <i>Optics Letters</i>, vol. 44, no. 6, 2019, pp. 1327–30,
    doi:<a href="https://doi.org/10.1364/ol.44.001327">10.1364/ol.44.001327</a>.
  short: R. Driben, X. Ma, S. Schumacher, T. Meier, Optics Letters 44 (2019) 1327–1330.
date_created: 2020-12-02T08:58:21Z
date_updated: 2025-12-05T13:45:12Z
department:
- _id: '15'
- _id: '170'
- _id: '230'
- _id: '429'
- _id: '297'
- _id: '705'
- _id: '35'
- _id: '293'
doi: 10.1364/ol.44.001327
external_id:
  pmid:
  - '30874642'
intvolume: '        44'
issue: '6'
language:
- iso: eng
page: 1327-1330
pmid: '1'
project:
- _id: '53'
  name: TRR 142
- _id: '54'
  name: TRR 142 - Project Area A
- _id: '61'
  name: TRR 142 - Subproject A4
- _id: '53'
  name: 'TRR 142: Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten
    zu funktionellen Strukturen'
publication: Optics Letters
publication_identifier:
  issn:
  - 0146-9592
  - 1539-4794
publication_status: published
status: public
title: Bloch oscillations of multidimensional dark soliton wave packets and light
  bullets
type: journal_article
user_id: '16199'
volume: 44
year: '2019'
...
---
_id: '15851'
article_number: '123008'
author:
- first_name: Xuekai
  full_name: Ma, Xuekai
  id: '59416'
  last_name: Ma
- first_name: Yaroslav Y
  full_name: Kartashov, Yaroslav Y
  last_name: Kartashov
- first_name: Tingge
  full_name: Gao, Tingge
  last_name: Gao
- first_name: Stefan
  full_name: Schumacher, Stefan
  id: '27271'
  last_name: Schumacher
  orcid: 0000-0003-4042-4951
citation:
  ama: Ma X, Kartashov YY, Gao T, Schumacher S. Controllable high-speed polariton
    waves in a PT-symmetric lattice. <i>New Journal of Physics</i>. 2019;21. doi:<a
    href="https://doi.org/10.1088/1367-2630/ab5a9b">10.1088/1367-2630/ab5a9b</a>
  apa: Ma, X., Kartashov, Y. Y., Gao, T., &#38; Schumacher, S. (2019). Controllable
    high-speed polariton waves in a PT-symmetric lattice. <i>New Journal of Physics</i>,
    <i>21</i>, Article 123008. <a href="https://doi.org/10.1088/1367-2630/ab5a9b">https://doi.org/10.1088/1367-2630/ab5a9b</a>
  bibtex: '@article{Ma_Kartashov_Gao_Schumacher_2019, title={Controllable high-speed
    polariton waves in a PT-symmetric lattice}, volume={21}, DOI={<a href="https://doi.org/10.1088/1367-2630/ab5a9b">10.1088/1367-2630/ab5a9b</a>},
    number={123008}, journal={New Journal of Physics}, author={Ma, Xuekai and Kartashov,
    Yaroslav Y and Gao, Tingge and Schumacher, Stefan}, year={2019} }'
  chicago: Ma, Xuekai, Yaroslav Y Kartashov, Tingge Gao, and Stefan Schumacher. “Controllable
    High-Speed Polariton Waves in a PT-Symmetric Lattice.” <i>New Journal of Physics</i>
    21 (2019). <a href="https://doi.org/10.1088/1367-2630/ab5a9b">https://doi.org/10.1088/1367-2630/ab5a9b</a>.
  ieee: 'X. Ma, Y. Y. Kartashov, T. Gao, and S. Schumacher, “Controllable high-speed
    polariton waves in a PT-symmetric lattice,” <i>New Journal of Physics</i>, vol.
    21, Art. no. 123008, 2019, doi: <a href="https://doi.org/10.1088/1367-2630/ab5a9b">10.1088/1367-2630/ab5a9b</a>.'
  mla: Ma, Xuekai, et al. “Controllable High-Speed Polariton Waves in a PT-Symmetric
    Lattice.” <i>New Journal of Physics</i>, vol. 21, 123008, 2019, doi:<a href="https://doi.org/10.1088/1367-2630/ab5a9b">10.1088/1367-2630/ab5a9b</a>.
  short: X. Ma, Y.Y. Kartashov, T. Gao, S. Schumacher, New Journal of Physics 21 (2019).
date_created: 2020-02-10T11:35:57Z
date_updated: 2025-12-05T13:53:04Z
department:
- _id: '15'
- _id: '170'
- _id: '297'
- _id: '705'
- _id: '230'
- _id: '35'
- _id: '27'
doi: 10.1088/1367-2630/ab5a9b
intvolume: '        21'
language:
- iso: eng
project:
- _id: '52'
  name: Computing Resources Provided by the Paderborn Center for Parallel Computing
publication: New Journal of Physics
publication_identifier:
  issn:
  - 1367-2630
publication_status: published
status: public
title: Controllable high-speed polariton waves in a PT-symmetric lattice
type: journal_article
user_id: '16199'
volume: 21
year: '2019'
...
---
_id: '13340'
abstract:
- lang: eng
  text: "Spontaneous formation of transverse patterns is ubiquitous in nonlinear\r\ndynamical
    systems of all kinds. An aspect of particular interest is the active\r\ncontrol
    of such patterns. In nonlinear optical systems this can be used for\r\nall-optical
    switching with transistor-like performance, for example realized\r\nwith polaritons
    in a planar quantum-well semiconductor microcavity. Here we\r\nfocus on a specific
    configuration which takes advantage of the intricate\r\npolarization dependencies
    in the interacting optically driven polariton system.\r\nBesides detailed numerical
    simulations of the coupled light-field exciton\r\ndynamics, in the present paper
    we focus on the derivation of a simplified\r\npopulation competition model giving
    detailed insight into the underlying\r\nmechanisms from a nonlinear dynamical
    systems perspective. We show that such a\r\nmodel takes the form of a generalized
    Lotka-Volterra system for two competing\r\npopulations explicitly including a
    source term that enables external control.\r\nWe present a comprehensive analysis
    both of the existence and stability of\r\nstationary states in the parameter space
    spanned by spatial anisotropy and\r\nexternal control strength. We also construct
    phase boundaries in non-trivial\r\nregions and characterize emerging bifurcations.
    The population competition\r\nmodel reproduces all key features of the switching
    observed in full numerical\r\nsimulations of the rather complex semiconductor
    system and at the same time is\r\nsimple enough for a fully analytical understanding
    of the system dynamics."
author:
- first_name: Matthias
  full_name: Pukrop, Matthias
  last_name: Pukrop
- first_name: Stefan
  full_name: Schumacher, Stefan
  id: '27271'
  last_name: Schumacher
  orcid: 0000-0003-4042-4951
citation:
  ama: Pukrop M, Schumacher S. Externally Controlled Lotka-Volterra Dynamics in a
    Linearly Polarized  Polariton Fluid. <i>arXiv:190312534</i>. Published online
    2019.
  apa: Pukrop, M., &#38; Schumacher, S. (2019). Externally Controlled Lotka-Volterra
    Dynamics in a Linearly Polarized  Polariton Fluid. In <i>arXiv:1903.12534</i>.
  bibtex: '@article{Pukrop_Schumacher_2019, title={Externally Controlled Lotka-Volterra
    Dynamics in a Linearly Polarized  Polariton Fluid}, journal={arXiv:1903.12534},
    author={Pukrop, Matthias and Schumacher, Stefan}, year={2019} }'
  chicago: Pukrop, Matthias, and Stefan Schumacher. “Externally Controlled Lotka-Volterra
    Dynamics in a Linearly Polarized  Polariton Fluid.” <i>ArXiv:1903.12534</i>, 2019.
  ieee: M. Pukrop and S. Schumacher, “Externally Controlled Lotka-Volterra Dynamics
    in a Linearly Polarized  Polariton Fluid,” <i>arXiv:1903.12534</i>. 2019.
  mla: Pukrop, Matthias, and Stefan Schumacher. “Externally Controlled Lotka-Volterra
    Dynamics in a Linearly Polarized  Polariton Fluid.” <i>ArXiv:1903.12534</i>, 2019.
  short: M. Pukrop, S. Schumacher, ArXiv:1903.12534 (2019).
date_created: 2019-09-19T13:18:47Z
date_updated: 2025-12-05T14:30:36Z
department:
- _id: '15'
- _id: '170'
- _id: '297'
- _id: '230'
- _id: '35'
- _id: '27'
language:
- iso: eng
project:
- _id: '52'
  name: Computing Resources Provided by the Paderborn Center for Parallel Computing
publication: arXiv:1903.12534
status: public
title: Externally Controlled Lotka-Volterra Dynamics in a Linearly Polarized  Polariton
  Fluid
type: preprint
user_id: '16199'
year: '2019'
...
---
_id: '13347'
abstract:
- lang: eng
  text: "<jats:p>&lt;div&gt;\r\n\t\t\t&lt;div&gt;\r\n\t\t\t\t&lt;div&gt;\r\n\t\t\t\t\t&lt;p&gt;Molecular
    doping in conjugated polymers is a crucial process for their application in organic\r\nphotovoltaics
    and optoelectronics. In the present work we theoretically investigate p-type molecu-\r\nlar
    doping in a series of (poly[2,6-(4,4-bis(2-ethylhexyl)-4H-cyclopenta[2,1-b;3,4-b”]dithiophene)-alt-\r\n4,7-(2,1,3-benzothiadiazole)]
    (PCPDT-BT) conjugated oligomers with different lengths and three\r\nwidely-used
    dopants with different electron affinities, namely F4TCNQ, F6TCNNQ, and CN6-CP.\r\nWe
    study in detail the molecular geometry of possible oligomer-dopant complexes and
    its influence\r\non the doping mechanisms and electronic system properties. We
    find that the mechanisms of dop-\r\ning and charge transfer observed sensitively
    depend on the specific geometry of the oligomer-dopant\r\ncomplexes. For a given
    complex different geometries may exist, some of which show transfer of\r\nan entire
    electron from the oligomer chain onto the dopant molecule resulting in an integer-charge\r\ntransfer
    complex, leaving the system in a ground state with broken spin symmetry. In other
    ge-\r\nometries merely hybridization of oligomer and dopant frontier orbitals
    occurs with partial charge\r\ntransfer but spin-symmetric ground state. Considering
    the resulting electronic density of states both\r\ncases may well contribute to
    an increased electrical conductivity of corresponding film samples while\r\nthe
    underlying physical mechanisms are entirely different.\r\n&lt;/p&gt;\r\n\t\t\t\t&lt;/div&gt;\r\n\t\t\t&lt;/div&gt;\r\n\t\t&lt;/div&gt;</jats:p>"
author:
- first_name: Chuan-Ding
  full_name: Dong, Chuan-Ding
  id: '67188'
  last_name: Dong
- first_name: Stefan
  full_name: Schumacher, Stefan
  id: '27271'
  last_name: Schumacher
  orcid: 0000-0003-4042-4951
citation:
  ama: 'Dong C-D, Schumacher S. Molecular Doping of PCPDT-BT Copolymers: Comparison
    of Molecular Complexes with and Without Integer Charge Transfer. Published online
    2019.'
  apa: 'Dong, C.-D., &#38; Schumacher, S. (2019). <i>Molecular Doping of PCPDT-BT
    Copolymers: Comparison of Molecular Complexes with and Without Integer Charge
    Transfer</i>.'
  bibtex: '@article{Dong_Schumacher_2019, title={Molecular Doping of PCPDT-BT Copolymers:
    Comparison of Molecular Complexes with and Without Integer Charge Transfer}, author={Dong,
    Chuan-Ding and Schumacher, Stefan}, year={2019} }'
  chicago: 'Dong, Chuan-Ding, and Stefan Schumacher. “Molecular Doping of PCPDT-BT
    Copolymers: Comparison of Molecular Complexes with and Without Integer Charge
    Transfer,” 2019.'
  ieee: 'C.-D. Dong and S. Schumacher, “Molecular Doping of PCPDT-BT Copolymers: Comparison
    of Molecular Complexes with and Without Integer Charge Transfer.” 2019.'
  mla: 'Dong, Chuan-Ding, and Stefan Schumacher. <i>Molecular Doping of PCPDT-BT Copolymers:
    Comparison of Molecular Complexes with and Without Integer Charge Transfer</i>.
    2019.'
  short: C.-D. Dong, S. Schumacher, (2019).
date_created: 2019-09-19T13:44:34Z
date_updated: 2025-12-05T14:31:11Z
department:
- _id: '15'
- _id: '170'
- _id: '297'
- _id: '230'
- _id: '35'
- _id: '27'
language:
- iso: eng
project:
- _id: '52'
  name: Computing Resources Provided by the Paderborn Center for Parallel Computing
- _id: '52'
  name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication_status: published
status: public
title: 'Molecular Doping of PCPDT-BT Copolymers: Comparison of Molecular Complexes
  with and Without Integer Charge Transfer'
type: preprint
user_id: '16199'
year: '2019'
...
---
_id: '13343'
author:
- first_name: Joachim
  full_name: Vollbrecht, Joachim
  last_name: Vollbrecht
- first_name: Christian
  full_name: Wiebeler, Christian
  last_name: Wiebeler
- first_name: Harald
  full_name: Bock, Harald
  last_name: Bock
- first_name: Stefan
  full_name: Schumacher, Stefan
  id: '27271'
  last_name: Schumacher
  orcid: 0000-0003-4042-4951
- first_name: Heinz-Siegfried
  full_name: Kitzerow, Heinz-Siegfried
  id: '254'
  last_name: Kitzerow
citation:
  ama: 'Vollbrecht J, Wiebeler C, Bock H, Schumacher S, Kitzerow H-S. Curved Polar
    Dibenzocoronene Esters and Imides versus Their Planar Centrosymmetric Homologs:
    Photophysical and Optoelectronic Analysis. <i>The Journal of Physical Chemistry
    C</i>. 2019;123(7):4483-4492. doi:<a href="https://doi.org/10.1021/acs.jpcc.8b10730">10.1021/acs.jpcc.8b10730</a>'
  apa: 'Vollbrecht, J., Wiebeler, C., Bock, H., Schumacher, S., &#38; Kitzerow, H.-S.
    (2019). Curved Polar Dibenzocoronene Esters and Imides versus Their Planar Centrosymmetric
    Homologs: Photophysical and Optoelectronic Analysis. <i>The Journal of Physical
    Chemistry C</i>, <i>123</i>(7), 4483–4492. <a href="https://doi.org/10.1021/acs.jpcc.8b10730">https://doi.org/10.1021/acs.jpcc.8b10730</a>'
  bibtex: '@article{Vollbrecht_Wiebeler_Bock_Schumacher_Kitzerow_2019, title={Curved
    Polar Dibenzocoronene Esters and Imides versus Their Planar Centrosymmetric Homologs:
    Photophysical and Optoelectronic Analysis}, volume={123}, DOI={<a href="https://doi.org/10.1021/acs.jpcc.8b10730">10.1021/acs.jpcc.8b10730</a>},
    number={7}, journal={The Journal of Physical Chemistry C}, author={Vollbrecht,
    Joachim and Wiebeler, Christian and Bock, Harald and Schumacher, Stefan and Kitzerow,
    Heinz-Siegfried}, year={2019}, pages={4483–4492} }'
  chicago: 'Vollbrecht, Joachim, Christian Wiebeler, Harald Bock, Stefan Schumacher,
    and Heinz-Siegfried Kitzerow. “Curved Polar Dibenzocoronene Esters and Imides
    versus Their Planar Centrosymmetric Homologs: Photophysical and Optoelectronic
    Analysis.” <i>The Journal of Physical Chemistry C</i> 123, no. 7 (2019): 4483–92.
    <a href="https://doi.org/10.1021/acs.jpcc.8b10730">https://doi.org/10.1021/acs.jpcc.8b10730</a>.'
  ieee: 'J. Vollbrecht, C. Wiebeler, H. Bock, S. Schumacher, and H.-S. Kitzerow, “Curved
    Polar Dibenzocoronene Esters and Imides versus Their Planar Centrosymmetric Homologs:
    Photophysical and Optoelectronic Analysis,” <i>The Journal of Physical Chemistry
    C</i>, vol. 123, no. 7, pp. 4483–4492, 2019, doi: <a href="https://doi.org/10.1021/acs.jpcc.8b10730">10.1021/acs.jpcc.8b10730</a>.'
  mla: 'Vollbrecht, Joachim, et al. “Curved Polar Dibenzocoronene Esters and Imides
    versus Their Planar Centrosymmetric Homologs: Photophysical and Optoelectronic
    Analysis.” <i>The Journal of Physical Chemistry C</i>, vol. 123, no. 7, 2019,
    pp. 4483–92, doi:<a href="https://doi.org/10.1021/acs.jpcc.8b10730">10.1021/acs.jpcc.8b10730</a>.'
  short: J. Vollbrecht, C. Wiebeler, H. Bock, S. Schumacher, H.-S. Kitzerow, The Journal
    of Physical Chemistry C 123 (2019) 4483–4492.
date_created: 2019-09-19T13:36:01Z
date_updated: 2025-12-05T14:29:56Z
department:
- _id: '15'
- _id: '170'
- _id: '297'
- _id: '313'
- _id: '230'
- _id: '35'
- _id: '27'
- _id: '2'
doi: 10.1021/acs.jpcc.8b10730
intvolume: '       123'
issue: '7'
language:
- iso: eng
page: 4483-4492
project:
- _id: '52'
  name: Computing Resources Provided by the Paderborn Center for Parallel Computing
publication: The Journal of Physical Chemistry C
publication_identifier:
  issn:
  - 1932-7447
  - 1932-7455
publication_status: published
status: public
title: 'Curved Polar Dibenzocoronene Esters and Imides versus Their Planar Centrosymmetric
  Homologs: Photophysical and Optoelectronic Analysis'
type: journal_article
user_id: '16199'
volume: 123
year: '2019'
...
---
_id: '50496'
abstract:
- lang: ger
  text: "Trotz hoher Aktualität und steigender Bedeutung liegen zum Thema Digitalisierung
    im Sportverein bisher kaum empirische Erkenntnisse vor. Der vorliegende Beitrag
    setzt sich mit folgenden Fragestellungen auseinander: (i) In welchem Umfang und
    zu welchem Zweck nutzen Sportvereine digitale Instrumente? (ii) Welche vereinsspezifischen
    Faktoren determinieren das jeweilige Nutzungsverhalten? Hierzu wurde eine Stichprobe
    von n=787 Sportvereinen aus Österreich und Deutschland generiert. Es zeigt sich,
    dass digitale Instrumente vor allem zur internen und externen Kommunikation sowie
    zur Bewältigung klassischer Verwaltungsaufgaben eingesetzt werden. Das Ausmaß
    der Nutzung hängt einerseits von vereinsexternen Bedingungen ab. So zeigt sich
    dahingehend ein Ländereffekt, dass in Deutschland digitale Instrumente stärker
    genutzt werden als in Österreich. Darüber hinaus haben Auflagen seitens der Verbände
    zur Verwendung bestimmter Software (z.B. für die Meldung von Wettkampfergebnissen)
    einen wichtigen Einfluss. Andererseits bestimmen vereinsinterne Faktoren wesentlich
    das Nutzungsverhalten. Positiv wirken vor allem die Vereinsziele ‚Engagement/Erfolg
    im Leistungssport‘ und ‚Wollen Vorreiterrolle bei der Digitalisierung einnehmen‘.
    Negativ wirken eine fehlende Strategie im Umgang mit digitalen Instrumenten sowie
    die Einschätzung, dass digitale Prozesse nicht zur eigenen Vereinskultur passen.\r\n"
author:
- first_name: Lars
  full_name: Riedl, Lars
  id: '31513'
  last_name: Riedl
- first_name: Peter
  full_name: "\tEhnold, Peter"
  last_name: "\tEhnold"
- first_name: 'Torsten '
  full_name: 'Schlesinger, Torsten '
  last_name: Schlesinger
citation:
  ama: "Riedl L, \tEhnold P, Schlesinger T. Digitalisierung im organisierten Sport.
    Eine Analyse zur Nutzung digitaler Instrumente in Sportvereinen. <i>Sciamus -
    Sport und Management</i>. 2019;(4):21-40. doi:<a href=\"https://doi.org/10.24403/jp.1016426\">10.24403/jp.1016426</a>"
  apa: "Riedl, L., \tEhnold, P., &#38; Schlesinger, T. (2019). Digitalisierung im
    organisierten Sport. Eine Analyse zur Nutzung digitaler Instrumente in Sportvereinen.
    <i>Sciamus - Sport und Management</i>, <i>4</i>, 21–40. <a href=\"https://doi.org/10.24403/jp.1016426\">https://doi.org/10.24403/jp.1016426</a>"
  bibtex: "@article{Riedl_\tEhnold_Schlesinger_2019, title={Digitalisierung im organisierten
    Sport. Eine Analyse zur Nutzung digitaler Instrumente in Sportvereinen}, DOI={<a
    href=\"https://doi.org/10.24403/jp.1016426\">10.24403/jp.1016426</a>}, number={4},
    journal={Sciamus - Sport und Management}, author={Riedl, Lars and \tEhnold, Peter
    and Schlesinger, Torsten }, year={2019}, pages={21–40} }"
  chicago: "Riedl, Lars, Peter \tEhnold, and Torsten  Schlesinger. “Digitalisierung
    im organisierten Sport. Eine Analyse zur Nutzung digitaler Instrumente in Sportvereinen.”
    <i>Sciamus - Sport und Management</i>, no. 4 (2019): 21–40. <a href=\"https://doi.org/10.24403/jp.1016426\">https://doi.org/10.24403/jp.1016426</a>."
  ieee: "L. Riedl, P. \tEhnold, and T. Schlesinger, “Digitalisierung im organisierten
    Sport. Eine Analyse zur Nutzung digitaler Instrumente in Sportvereinen,” <i>Sciamus
    - Sport und Management</i>, no. 4, pp. 21–40, 2019, doi: <a href=\"https://doi.org/10.24403/jp.1016426\">10.24403/jp.1016426</a>."
  mla: Riedl, Lars, et al. “Digitalisierung im organisierten Sport. Eine Analyse zur
    Nutzung digitaler Instrumente in Sportvereinen.” <i>Sciamus - Sport und Management</i>,
    no. 4, 2019, pp. 21–40, doi:<a href="https://doi.org/10.24403/jp.1016426">10.24403/jp.1016426</a>.
  short: "L. Riedl, P. \tEhnold, T. Schlesinger, Sciamus - Sport und Management (2019)
    21–40."
date_created: 2024-01-15T10:05:29Z
date_updated: 2025-12-10T15:58:12Z
department:
- _id: '175'
doi: 10.24403/jp.1016426
issue: '4'
language:
- iso: ger
main_file_link:
- open_access: '1'
  url: https://zs.thulb.uni-jena.de/servlets/MCRFileNodeServlet/jportal_derivate_00292234/SSuM_Ausgabe_4_2019_Sonderausgabe_Aktuell_021_040.pdf
oa: '1'
page: 21-40
publication: Sciamus - Sport und Management
publication_identifier:
  issn:
  - 1869-8247
publication_status: published
status: public
title: Digitalisierung im organisierten Sport. Eine Analyse zur Nutzung digitaler
  Instrumente in Sportvereinen
type: journal_article
user_id: '31513'
year: '2019'
...
---
_id: '23764'
author:
- first_name: Franziska
  full_name: Kehne, Franziska
  last_name: Kehne
- first_name: Sabine
  full_name: Fechner, Sabine
  id: '54823'
  last_name: Fechner
  orcid: 0000-0001-5645-5870
citation:
  ama: 'Kehne F, Fechner S. Enkodierung chemischer Konzepte aus lebenweltlichen Kontexten.
    In: Maurer C, ed. <i>Naturwissenschaftliche Bildung als Grundlage für berufliche
    und gesellschaftliche Teilhabe. Gesellschaft für Didaktik der Chemie und Physik,
    Jahrestagung in Kiel 2018</i>. Universität Regensburg; 2019:755-758.'
  apa: Kehne, F., &#38; Fechner, S. (2019). Enkodierung chemischer Konzepte aus lebenweltlichen
    Kontexten. In C. Maurer (Ed.), <i>Naturwissenschaftliche Bildung als Grundlage
    für berufliche und gesellschaftliche Teilhabe. Gesellschaft für Didaktik der Chemie
    und Physik, Jahrestagung in Kiel 2018</i> (pp. 755–758). Universität Regensburg.
  bibtex: '@inproceedings{Kehne_Fechner_2019, title={Enkodierung chemischer Konzepte
    aus lebenweltlichen Kontexten}, booktitle={Naturwissenschaftliche Bildung als
    Grundlage für berufliche und gesellschaftliche Teilhabe. Gesellschaft für Didaktik
    der Chemie und Physik, Jahrestagung in Kiel 2018}, publisher={Universität Regensburg},
    author={Kehne, Franziska and Fechner, Sabine}, editor={Maurer, Christian }, year={2019},
    pages={755–758} }'
  chicago: Kehne, Franziska, and Sabine Fechner. “Enkodierung chemischer Konzepte
    aus lebenweltlichen Kontexten.” In <i>Naturwissenschaftliche Bildung als Grundlage
    für berufliche und gesellschaftliche Teilhabe. Gesellschaft für Didaktik der Chemie
    und Physik, Jahrestagung in Kiel 2018</i>, edited by Christian  Maurer, 755–58.
    Universität Regensburg, 2019.
  ieee: F. Kehne and S. Fechner, “Enkodierung chemischer Konzepte aus lebenweltlichen
    Kontexten,” in <i>Naturwissenschaftliche Bildung als Grundlage für berufliche
    und gesellschaftliche Teilhabe. Gesellschaft für Didaktik der Chemie und Physik,
    Jahrestagung in Kiel 2018</i>, 2019, pp. 755–758.
  mla: Kehne, Franziska, and Sabine Fechner. “Enkodierung chemischer Konzepte aus
    lebenweltlichen Kontexten.” <i>Naturwissenschaftliche Bildung als Grundlage für
    berufliche und gesellschaftliche Teilhabe. Gesellschaft für Didaktik der Chemie
    und Physik, Jahrestagung in Kiel 2018</i>, edited by Christian  Maurer, Universität
    Regensburg, 2019, pp. 755–58.
  short: 'F. Kehne, S. Fechner, in: C. Maurer (Ed.), Naturwissenschaftliche Bildung
    als Grundlage für berufliche und gesellschaftliche Teilhabe. Gesellschaft für
    Didaktik der Chemie und Physik, Jahrestagung in Kiel 2018, Universität Regensburg,
    2019, pp. 755–758.'
date_created: 2021-09-03T17:43:47Z
date_updated: 2025-12-11T13:41:23Z
department:
- _id: '386'
- _id: '33'
editor:
- first_name: 'Christian '
  full_name: 'Maurer, Christian '
  last_name: Maurer
language:
- iso: ger
main_file_link:
- url: https://gdcp-ev.de/wp-content/tb2019/TB2019_755_Kehne.pdf
page: 755-758
publication: Naturwissenschaftliche Bildung als Grundlage für berufliche und gesellschaftliche
  Teilhabe. Gesellschaft für Didaktik der Chemie und Physik, Jahrestagung in Kiel
  2018
publisher: Universität Regensburg
status: public
title: Enkodierung chemischer Konzepte aus lebenweltlichen Kontexten
type: conference
user_id: '54823'
year: '2019'
...
---
_id: '62824'
author:
- first_name: Franziska
  full_name: Kehne, Franziska
  last_name: Kehne
citation:
  ama: Kehne F. <i>Analyse Des Transfers von Kontextualisiert Erworbenem Wissen Im
    Fach Chemie</i>. Logos Verlag; 2019.
  apa: Kehne, F. (2019). <i>Analyse des Transfers von kontextualisiert erworbenem
    Wissen im Fach Chemie</i>. Logos Verlag.
  bibtex: '@book{Kehne_2019, place={Berlin}, title={Analyse des Transfers von kontextualisiert
    erworbenem Wissen im Fach Chemie}, publisher={Logos Verlag}, author={Kehne, Franziska},
    year={2019} }'
  chicago: 'Kehne, Franziska. <i>Analyse Des Transfers von Kontextualisiert Erworbenem
    Wissen Im Fach Chemie</i>. Berlin: Logos Verlag, 2019.'
  ieee: 'F. Kehne, <i>Analyse des Transfers von kontextualisiert erworbenem Wissen
    im Fach Chemie</i>. Berlin: Logos Verlag, 2019.'
  mla: Kehne, Franziska. <i>Analyse Des Transfers von Kontextualisiert Erworbenem
    Wissen Im Fach Chemie</i>. Logos Verlag, 2019.
  short: F. Kehne, Analyse Des Transfers von Kontextualisiert Erworbenem Wissen Im
    Fach Chemie, Logos Verlag, Berlin, 2019.
date_created: 2025-12-03T21:32:57Z
date_updated: 2025-12-11T13:40:52Z
department:
- _id: '386'
- _id: '33'
language:
- iso: eng
main_file_link:
- url: https://www.logos-verlag.de/cgi-bin/engbuchmid?isbn=4846&lng=deu&id=
place: Berlin
publisher: Logos Verlag
status: public
supervisor:
- first_name: Sabine
  full_name: Fechner, Sabine
  id: '54823'
  last_name: Fechner
  orcid: 0000-0001-5645-5870
title: Analyse des Transfers von kontextualisiert erworbenem Wissen im Fach Chemie
type: dissertation
user_id: '54823'
year: '2019'
...
---
_id: '59500'
article_number: '179'
author:
- first_name: Nicholas Alexander
  full_name: Güsken, Nicholas Alexander
  id: '112030'
  last_name: Güsken
  orcid: 0000-0002-4816-0666
- first_name: Torsten
  full_name: Rieger, Torsten
  last_name: Rieger
- first_name: Gregor
  full_name: Mussler, Gregor
  last_name: Mussler
- first_name: Mihail Ion
  full_name: Lepsa, Mihail Ion
  last_name: Lepsa
- first_name: Detlev
  full_name: Grützmacher, Detlev
  last_name: Grützmacher
citation:
  ama: Güsken NA, Rieger T, Mussler G, Lepsa MI, Grützmacher D. Influence of Te-Doping
    on Catalyst-Free VS InAs Nanowires. <i>Nanoscale Research Letters</i>. 2019;14(1).
    doi:<a href="https://doi.org/10.1186/s11671-019-3004-0">10.1186/s11671-019-3004-0</a>
  apa: Güsken, N. A., Rieger, T., Mussler, G., Lepsa, M. I., &#38; Grützmacher, D.
    (2019). Influence of Te-Doping on Catalyst-Free VS InAs Nanowires. <i>Nanoscale
    Research Letters</i>, <i>14</i>(1), Article 179. <a href="https://doi.org/10.1186/s11671-019-3004-0">https://doi.org/10.1186/s11671-019-3004-0</a>
  bibtex: '@article{Güsken_Rieger_Mussler_Lepsa_Grützmacher_2019, title={Influence
    of Te-Doping on Catalyst-Free VS InAs Nanowires}, volume={14}, DOI={<a href="https://doi.org/10.1186/s11671-019-3004-0">10.1186/s11671-019-3004-0</a>},
    number={1179}, journal={Nanoscale Research Letters}, publisher={Springer Science
    and Business Media LLC}, author={Güsken, Nicholas Alexander and Rieger, Torsten
    and Mussler, Gregor and Lepsa, Mihail Ion and Grützmacher, Detlev}, year={2019}
    }'
  chicago: Güsken, Nicholas Alexander, Torsten Rieger, Gregor Mussler, Mihail Ion
    Lepsa, and Detlev Grützmacher. “Influence of Te-Doping on Catalyst-Free VS InAs
    Nanowires.” <i>Nanoscale Research Letters</i> 14, no. 1 (2019). <a href="https://doi.org/10.1186/s11671-019-3004-0">https://doi.org/10.1186/s11671-019-3004-0</a>.
  ieee: 'N. A. Güsken, T. Rieger, G. Mussler, M. I. Lepsa, and D. Grützmacher, “Influence
    of Te-Doping on Catalyst-Free VS InAs Nanowires,” <i>Nanoscale Research Letters</i>,
    vol. 14, no. 1, Art. no. 179, 2019, doi: <a href="https://doi.org/10.1186/s11671-019-3004-0">10.1186/s11671-019-3004-0</a>.'
  mla: Güsken, Nicholas Alexander, et al. “Influence of Te-Doping on Catalyst-Free
    VS InAs Nanowires.” <i>Nanoscale Research Letters</i>, vol. 14, no. 1, 179, Springer
    Science and Business Media LLC, 2019, doi:<a href="https://doi.org/10.1186/s11671-019-3004-0">10.1186/s11671-019-3004-0</a>.
  short: N.A. Güsken, T. Rieger, G. Mussler, M.I. Lepsa, D. Grützmacher, Nanoscale
    Research Letters 14 (2019).
date_created: 2025-04-10T13:26:06Z
date_updated: 2025-12-15T11:22:09Z
doi: 10.1186/s11671-019-3004-0
intvolume: '        14'
issue: '1'
language:
- iso: eng
publication: Nanoscale Research Letters
publication_identifier:
  issn:
  - 1931-7573
  - 1556-276X
publication_status: published
publisher: Springer Science and Business Media LLC
status: public
title: Influence of Te-Doping on Catalyst-Free VS InAs Nanowires
type: journal_article
user_id: '112030'
volume: 14
year: '2019'
...
---
_id: '40384'
article_number: '053829'
author:
- first_name: Alessandro
  full_name: Ferreri, Alessandro
  id: '65609'
  last_name: Ferreri
- first_name: V.
  full_name: Ansari, V.
  last_name: Ansari
- first_name: Christine
  full_name: Silberhorn, Christine
  id: '26263'
  last_name: Silberhorn
- first_name: Polina R.
  full_name: Sharapova, Polina R.
  id: '60286'
  last_name: Sharapova
citation:
  ama: Ferreri A, Ansari V, Silberhorn C, Sharapova PR. Temporally multimode four-photon
    Hong-Ou-Mandel interference. <i>Physical Review A</i>. 2019;100(5). doi:<a href="https://doi.org/10.1103/physreva.100.053829">10.1103/physreva.100.053829</a>
  apa: Ferreri, A., Ansari, V., Silberhorn, C., &#38; Sharapova, P. R. (2019). Temporally
    multimode four-photon Hong-Ou-Mandel interference. <i>Physical Review A</i>, <i>100</i>(5),
    Article 053829. <a href="https://doi.org/10.1103/physreva.100.053829">https://doi.org/10.1103/physreva.100.053829</a>
  bibtex: '@article{Ferreri_Ansari_Silberhorn_Sharapova_2019, title={Temporally multimode
    four-photon Hong-Ou-Mandel interference}, volume={100}, DOI={<a href="https://doi.org/10.1103/physreva.100.053829">10.1103/physreva.100.053829</a>},
    number={5053829}, journal={Physical Review A}, publisher={American Physical Society
    (APS)}, author={Ferreri, Alessandro and Ansari, V. and Silberhorn, Christine and
    Sharapova, Polina R.}, year={2019} }'
  chicago: Ferreri, Alessandro, V. Ansari, Christine Silberhorn, and Polina R. Sharapova.
    “Temporally Multimode Four-Photon Hong-Ou-Mandel Interference.” <i>Physical Review
    A</i> 100, no. 5 (2019). <a href="https://doi.org/10.1103/physreva.100.053829">https://doi.org/10.1103/physreva.100.053829</a>.
  ieee: 'A. Ferreri, V. Ansari, C. Silberhorn, and P. R. Sharapova, “Temporally multimode
    four-photon Hong-Ou-Mandel interference,” <i>Physical Review A</i>, vol. 100,
    no. 5, Art. no. 053829, 2019, doi: <a href="https://doi.org/10.1103/physreva.100.053829">10.1103/physreva.100.053829</a>.'
  mla: Ferreri, Alessandro, et al. “Temporally Multimode Four-Photon Hong-Ou-Mandel
    Interference.” <i>Physical Review A</i>, vol. 100, no. 5, 053829, American Physical
    Society (APS), 2019, doi:<a href="https://doi.org/10.1103/physreva.100.053829">10.1103/physreva.100.053829</a>.
  short: A. Ferreri, V. Ansari, C. Silberhorn, P.R. Sharapova, Physical Review A 100
    (2019).
date_created: 2023-01-26T14:12:28Z
date_updated: 2025-12-16T11:28:33Z
department:
- _id: '15'
- _id: '569'
- _id: '170'
- _id: '288'
- _id: '230'
- _id: '429'
- _id: '35'
doi: 10.1103/physreva.100.053829
intvolume: '       100'
issue: '5'
language:
- iso: eng
project:
- _id: '53'
  name: 'TRR 142: TRR 142'
- _id: '56'
  name: 'TRR 142 - C: TRR 142 - Project Area C'
- _id: '72'
  name: 'TRR 142 - C2: TRR 142 - Subproject C2'
publication: Physical Review A
publication_identifier:
  issn:
  - 2469-9926
  - 2469-9934
publication_status: published
publisher: American Physical Society (APS)
status: public
title: Temporally multimode four-photon Hong-Ou-Mandel interference
type: journal_article
user_id: '16199'
volume: 100
year: '2019'
...
---
_id: '63177'
author:
- first_name: M
  full_name: Ludwig, M
  last_name: Ludwig
- first_name: S
  full_name: Jablonski, S
  last_name: Jablonski
citation:
  ama: Ludwig M, Jablonski S. Doing Math Modelling Outdoors-A Special Math Class Activity
    designed with MathCityMap. Published online 2019.
  apa: Ludwig, M., &#38; Jablonski, S. (2019). <i>Doing Math Modelling Outdoors-A
    Special Math Class Activity designed with MathCityMap</i>.
  bibtex: '@article{Ludwig_Jablonski_2019, title={Doing Math Modelling Outdoors-A
    Special Math Class Activity designed with MathCityMap}, author={Ludwig, M and
    Jablonski, S}, year={2019} }'
  chicago: Ludwig, M, and S Jablonski. “Doing Math Modelling Outdoors-A Special Math
    Class Activity Designed with MathCityMap,” 2019.
  ieee: M. Ludwig and S. Jablonski, “Doing Math Modelling Outdoors-A Special Math
    Class Activity designed with MathCityMap,” 2019.
  mla: Ludwig, M., and S. Jablonski. <i>Doing Math Modelling Outdoors-A Special Math
    Class Activity Designed with MathCityMap</i>. 2019.
  short: M. Ludwig, S. Jablonski, (2019).
date_created: 2025-12-17T08:53:35Z
date_updated: 2025-12-17T08:56:11Z
publication_identifier:
  issn:
  - 978-84-9048-661-0
publication_status: published
quality_controlled: '1'
status: public
title: Doing Math Modelling Outdoors-A Special Math Class Activity designed with MathCityMap
type: journal_article
user_id: '111489'
year: '2019'
...
---
_id: '63197'
author:
- first_name: Claudia
  full_name: Decker, Claudia
  id: '31046'
  last_name: Decker
- first_name: Maria
  full_name: Mochalova, Maria
  last_name: Mochalova
citation:
  ama: 'Decker C, Mochalova M. Professionalisierung im Lehramtsstudium an der Universität
    Paderborn. In: ; 2019.'
  apa: Decker, C., &#38; Mochalova, M. (2019). <i>Professionalisierung im Lehramtsstudium
    an der Universität Paderborn</i>. Lehrer*innen als Alleskönner? Querschnittsthemen
    zwischen Professionsanspruch und De-Professionalisierung. Tagung der Hochschulen
    des Niedersächsischen Verbundes zur Lehrerbildung und der HRK, Universität Osnabrück.
  bibtex: '@inproceedings{Decker_Mochalova_2019, title={Professionalisierung im Lehramtsstudium
    an der Universität Paderborn}, author={Decker, Claudia and Mochalova, Maria},
    year={2019} }'
  chicago: Decker, Claudia, and Maria Mochalova. “Professionalisierung Im Lehramtsstudium
    an Der Universität Paderborn,” 2019.
  ieee: C. Decker and M. Mochalova, “Professionalisierung im Lehramtsstudium an der
    Universität Paderborn,” presented at the Lehrer*innen als Alleskönner? Querschnittsthemen
    zwischen Professionsanspruch und De-Professionalisierung. Tagung der Hochschulen
    des Niedersächsischen Verbundes zur Lehrerbildung und der HRK, Universität Osnabrück,
    2019.
  mla: Decker, Claudia, and Maria Mochalova. <i>Professionalisierung Im Lehramtsstudium
    an Der Universität Paderborn</i>. 2019.
  short: 'C. Decker, M. Mochalova, in: 2019.'
conference:
  location: Universität Osnabrück
  name: Lehrer*innen als Alleskönner? Querschnittsthemen zwischen Professionsanspruch
    und De-Professionalisierung. Tagung der Hochschulen des Niedersächsischen Verbundes
    zur Lehrerbildung und der HRK
  start_date: 19.9.2019
date_created: 2025-12-18T10:52:09Z
date_updated: 2025-12-18T10:52:15Z
department:
- _id: '33'
language:
- iso: eng
status: public
title: Professionalisierung im Lehramtsstudium an der Universität Paderborn
type: conference
user_id: '31046'
year: '2019'
...
---
_id: '63325'
abstract:
- lang: eng
  text: "<jats:title>Abstract</jats:title>\r\n               <jats:p>We consider the
    spatially 2D version of the model $$\\begin{equation*} \\qquad\\quad\\left\\{
    \\begin{array}{@{}rcll} n_t + u\\cdot\\nabla n &amp;=&amp; \\Delta n - \\nabla
    \\cdot \\big(nS(x,n,c) \\cdot \\nabla c \\big), \\qquad &amp;\\qquad x\\in \\Omega,
    \\ t&amp;gt;0, \\\\ c_t + u\\cdot \\nabla c &amp;=&amp; \\Delta c - n f(c), \\qquad
    &amp;\\qquad x\\in \\Omega, \\ t&amp;gt;0, \\\\ u_t &amp;=&amp; \\Delta u + \\nabla
    P + n\\nabla\\phi, \\qquad \\nabla\\cdot u=0, \\qquad &amp;\\qquad x\\in \\Omega,
    \\ t&amp;gt;0, \\end{array} \\right. \\qquad \\qquad (\\star) \\end{equation*}$$for
    nutrient taxis processes, possibly interacting with liquid environments. Here
    the particular focus is on the situation when the chemotactic sensitivity $S$
    is not a scalar function but rather attains general values in ${\\mathbb{R}}^{2\\times
    2}$, thus accounting for rotational flux components in accordance with experimental
    findings and recent modeling approaches. Reflecting significant new challenges
    that mainly stem from apparent loss of energy-like structures, especially for
    initial data with large size, the knowledge on ($\\star$) so far seems essentially
    restricted to results on global existence of certain generalized solutions with
    possibly quite poor boundedness and regularity properties; widely unaddressed
    seem aspects related to possible effects of such non-diagonal taxis mechanisms
    on the qualitative solution behavior, especially with regard to the fundamental
    question whether spatial structures may thereby be supported. The present work
    answers the latter in the negative in the following sense: under the assumptions
    that the initial data $(n_0,c_0,u_0)$ and the parameter functions $S$, $f$, and
    $\\phi$ are sufficiently smooth, and that $S$ is bounded and $f$ is positive on
    $(0,\\infty )$ with $f(0)=0$, it is shown that any nontrivial of these solutions
    eventually becomes smooth and satisfies $$\\begin{equation*} n(\\cdot,t)\\to -
    \\int_\\Omega n_0, \\quad c(\\cdot,t)\\to 0 \\quad \\text{and} \\quad u(\\cdot,t)\\to
    0 \\qquad \\text{as} \\ t\\to\\infty, \\end{equation*}$$uniformly with respect
    to $x\\in \\Omega$. By not requiring any smallness condition on the initial data,
    the latter seems new even in the corresponding fluid-free version obtained on
    letting $u\\equiv 0$ in ($\\star$).</jats:p>"
author:
- first_name: Michael
  full_name: Winkler, Michael
  id: '31496'
  last_name: Winkler
citation:
  ama: Winkler M. Can Rotational Fluxes Impede the Tendency Toward Spatial Homogeneity
    in Nutrient Taxis(-Stokes) Systems? <i>International Mathematics Research Notices</i>.
    2019;2021(11):8106-8152. doi:<a href="https://doi.org/10.1093/imrn/rnz056">10.1093/imrn/rnz056</a>
  apa: Winkler, M. (2019). Can Rotational Fluxes Impede the Tendency Toward Spatial
    Homogeneity in Nutrient Taxis(-Stokes) Systems? <i>International Mathematics Research
    Notices</i>, <i>2021</i>(11), 8106–8152. <a href="https://doi.org/10.1093/imrn/rnz056">https://doi.org/10.1093/imrn/rnz056</a>
  bibtex: '@article{Winkler_2019, title={Can Rotational Fluxes Impede the Tendency
    Toward Spatial Homogeneity in Nutrient Taxis(-Stokes) Systems?}, volume={2021},
    DOI={<a href="https://doi.org/10.1093/imrn/rnz056">10.1093/imrn/rnz056</a>}, number={11},
    journal={International Mathematics Research Notices}, publisher={Oxford University
    Press (OUP)}, author={Winkler, Michael}, year={2019}, pages={8106–8152} }'
  chicago: 'Winkler, Michael. “Can Rotational Fluxes Impede the Tendency Toward Spatial
    Homogeneity in Nutrient Taxis(-Stokes) Systems?” <i>International Mathematics
    Research Notices</i> 2021, no. 11 (2019): 8106–52. <a href="https://doi.org/10.1093/imrn/rnz056">https://doi.org/10.1093/imrn/rnz056</a>.'
  ieee: 'M. Winkler, “Can Rotational Fluxes Impede the Tendency Toward Spatial Homogeneity
    in Nutrient Taxis(-Stokes) Systems?,” <i>International Mathematics Research Notices</i>,
    vol. 2021, no. 11, pp. 8106–8152, 2019, doi: <a href="https://doi.org/10.1093/imrn/rnz056">10.1093/imrn/rnz056</a>.'
  mla: Winkler, Michael. “Can Rotational Fluxes Impede the Tendency Toward Spatial
    Homogeneity in Nutrient Taxis(-Stokes) Systems?” <i>International Mathematics
    Research Notices</i>, vol. 2021, no. 11, Oxford University Press (OUP), 2019,
    pp. 8106–52, doi:<a href="https://doi.org/10.1093/imrn/rnz056">10.1093/imrn/rnz056</a>.
  short: M. Winkler, International Mathematics Research Notices 2021 (2019) 8106–8152.
date_created: 2025-12-18T19:35:55Z
date_updated: 2025-12-18T19:59:29Z
doi: 10.1093/imrn/rnz056
intvolume: '      2021'
issue: '11'
language:
- iso: eng
page: 8106-8152
publication: International Mathematics Research Notices
publication_identifier:
  issn:
  - 1073-7928
  - 1687-0247
publication_status: published
publisher: Oxford University Press (OUP)
status: public
title: Can Rotational Fluxes Impede the Tendency Toward Spatial Homogeneity in Nutrient
  Taxis(-Stokes) Systems?
type: journal_article
user_id: '31496'
volume: 2021
year: '2019'
...
---
_id: '63337'
abstract:
- lang: eng
  text: <jats:title>Abstract</jats:title><jats:p>In bounded<jats:italic>n</jats:italic>-dimensional
    domains<jats:italic>Ω</jats:italic>, the Neumann problem for the parabolic equation</jats:p><jats:p><jats:disp-formula
    id="j_anona-2020-0013_eq_001"><jats:alternatives><jats:graphic xmlns:xlink="http://www.w3.org/1999/xlink"
    xlink:href="graphic/j_anona-2020-0013_eq_001.png" position="float" orientation="portrait"
    /><jats:tex-math>$$\begin{array}{} \displaystyle u_t = \nabla \cdot \Big( A(x,t)\cdot\nabla
    u\Big) + \nabla \cdot \Big(b(x,t)u\Big) - f(x,t,u)+g(x,t) \end{array}$$</jats:tex-math></jats:alternatives><jats:label>(*)</jats:label></jats:disp-formula></jats:p><jats:p>is
    considered for sufficiently regular matrix-valued<jats:italic>A</jats:italic>,
    vector-valued<jats:italic>b</jats:italic>and real valued<jats:italic>g</jats:italic>,
    and with<jats:italic>f</jats:italic>representing superlinear absorption in generalizing
    the prototypical choice given by<jats:italic>f</jats:italic>(⋅, ⋅,<jats:italic>s</jats:italic>)
    =<jats:italic>s<jats:sup>α</jats:sup></jats:italic>with<jats:italic>α</jats:italic>&gt;
    1. Problems of this form arise in a natural manner as sub-problems in several
    applications such as cross-diffusion systems either of Keller-Segel or of Shigesada-Kawasaki-Teramoto
    type in mathematical biology, and accordingly a natural space for initial data
    appears to be<jats:italic>L</jats:italic><jats:sup>1</jats:sup>(<jats:italic>Ω</jats:italic>).</jats:p><jats:p>The
    main objective thus consists in examining how far solutions can be constructed
    for initial data merely assumed to be integrable, with major challenges potentially
    resulting from the interplay between nonlinear degradation on the one hand, and
    the possibly destabilizing drift-type action on the other in such contexts. Especially,
    the applicability of well-established methods such as techniques relying on entropy-like
    structures available in some particular cases, for instance, seems quite limited
    in the present setting, as these typically rely on higher initial regularity properties.</jats:p><jats:p>The
    first of the main results shows that in the general framework of (*), nevertheless
    certain global very weak solutions can be constructed through a limit process
    involving smooth solutions to approximate variants thereof, provided that the
    ingredients of the latter satisfy appropriate assumptions with regard to their
    stabilization behavior.</jats:p><jats:p>The second and seemingly most substantial
    part of the paper develops a method by which it can be shown, under suitably stregthened
    hypotheses on the integrability of<jats:italic>b</jats:italic>and the degradation
    parameter<jats:italic>α</jats:italic>, that the solutions obtained above in fact
    form genuine weak solutions in a naturally defined sense. This is achieved by
    properly exploiting a weak integral inequality, as satisfied by the very weak
    solution at hand, through a testing procedure that appears to be novel and of
    potentially independent interest.</jats:p><jats:p>To underline the strength of
    this approach, both these general results are thereafter applied to two specific
    cross-diffusion systems. Inter alia, this leads to a statement on global solvability
    in a logistic Keller-Segel system under the assumption<jats:italic>α</jats:italic>&gt;<jats:inline-formula><jats:alternatives><jats:inline-graphic
    xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/j_anona-2020-0013_eq_002.png"
    /><jats:tex-math>$\begin{array}{} \frac{2n+4}{n+4} \end{array}$</jats:tex-math></jats:alternatives></jats:inline-formula>on
    the respective degradation rate which seems substantially milder than any previously
    found condition in the literature. Apart from that, for a Shigesada-Kawasaki-Teramoto
    system some apparently first results on global solvability for<jats:italic>L</jats:italic><jats:sup>1</jats:sup>initial
    data are derived.</jats:p>
author:
- first_name: Michael
  full_name: Winkler, Michael
  id: '31496'
  last_name: Winkler
citation:
  ama: Winkler M. The role of superlinear damping in the construction of solutions
    to drift-diffusion problems with initial data in L1. <i>Advances in Nonlinear
    Analysis</i>. 2019;9(1):526-566. doi:<a href="https://doi.org/10.1515/anona-2020-0013">10.1515/anona-2020-0013</a>
  apa: Winkler, M. (2019). The role of superlinear damping in the construction of
    solutions to drift-diffusion problems with initial data in L1. <i>Advances in
    Nonlinear Analysis</i>, <i>9</i>(1), 526–566. <a href="https://doi.org/10.1515/anona-2020-0013">https://doi.org/10.1515/anona-2020-0013</a>
  bibtex: '@article{Winkler_2019, title={The role of superlinear damping in the construction
    of solutions to drift-diffusion problems with initial data in L1}, volume={9},
    DOI={<a href="https://doi.org/10.1515/anona-2020-0013">10.1515/anona-2020-0013</a>},
    number={1}, journal={Advances in Nonlinear Analysis}, publisher={Walter de Gruyter
    GmbH}, author={Winkler, Michael}, year={2019}, pages={526–566} }'
  chicago: 'Winkler, Michael. “The Role of Superlinear Damping in the Construction
    of Solutions to Drift-Diffusion Problems with Initial Data in L1.” <i>Advances
    in Nonlinear Analysis</i> 9, no. 1 (2019): 526–66. <a href="https://doi.org/10.1515/anona-2020-0013">https://doi.org/10.1515/anona-2020-0013</a>.'
  ieee: 'M. Winkler, “The role of superlinear damping in the construction of solutions
    to drift-diffusion problems with initial data in L1,” <i>Advances in Nonlinear
    Analysis</i>, vol. 9, no. 1, pp. 526–566, 2019, doi: <a href="https://doi.org/10.1515/anona-2020-0013">10.1515/anona-2020-0013</a>.'
  mla: Winkler, Michael. “The Role of Superlinear Damping in the Construction of Solutions
    to Drift-Diffusion Problems with Initial Data in L1.” <i>Advances in Nonlinear
    Analysis</i>, vol. 9, no. 1, Walter de Gruyter GmbH, 2019, pp. 526–66, doi:<a
    href="https://doi.org/10.1515/anona-2020-0013">10.1515/anona-2020-0013</a>.
  short: M. Winkler, Advances in Nonlinear Analysis 9 (2019) 526–566.
date_created: 2025-12-18T19:45:09Z
date_updated: 2025-12-18T20:01:54Z
doi: 10.1515/anona-2020-0013
intvolume: '         9'
issue: '1'
language:
- iso: eng
page: 526-566
publication: Advances in Nonlinear Analysis
publication_identifier:
  issn:
  - 2191-950X
publication_status: published
publisher: Walter de Gruyter GmbH
status: public
title: The role of superlinear damping in the construction of solutions to drift-diffusion
  problems with initial data in L1
type: journal_article
user_id: '31496'
volume: 9
year: '2019'
...
