---
_id: '60356'
author:
- first_name: Hannah Sabrina
full_name: Sloane, Hannah Sabrina
id: '48206'
last_name: Sloane
citation:
ama: 'Sloane HS. Zwei Perspektiven auf den Übergang in ein Studium: eine imaginäre
Diskussion zwischen Wirtschaftspädagogik und Soziologie . bwp@. 2025;(Profil
12):1-16.'
apa: 'Sloane, H. S. (2025). Zwei Perspektiven auf den Übergang in ein Studium: eine
imaginäre Diskussion zwischen Wirtschaftspädagogik und Soziologie . bwp@,
Profil 12, 1–16.'
bibtex: '@article{Sloane_2025, title={Zwei Perspektiven auf den Übergang in ein
Studium: eine imaginäre Diskussion zwischen Wirtschaftspädagogik und Soziologie
}, number={Profil 12}, journal={bwp@}, author={Sloane, Hannah Sabrina}, year={2025},
pages={1–16} }'
chicago: 'Sloane, Hannah Sabrina. “Zwei Perspektiven auf den Übergang in ein Studium:
eine imaginäre Diskussion zwischen Wirtschaftspädagogik und Soziologie .” bwp@,
no. Profil 12 (2025): 1–16.'
ieee: 'H. S. Sloane, “Zwei Perspektiven auf den Übergang in ein Studium: eine imaginäre
Diskussion zwischen Wirtschaftspädagogik und Soziologie ,” bwp@, no. Profil
12, pp. 1–16, 2025.'
mla: 'Sloane, Hannah Sabrina. “Zwei Perspektiven auf den Übergang in ein Studium:
eine imaginäre Diskussion zwischen Wirtschaftspädagogik und Soziologie .” bwp@,
no. Profil 12, 2025, pp. 1–16.'
short: H.S. Sloane, bwp@ (2025) 1–16.
date_created: 2025-06-24T09:05:45Z
date_updated: 2025-06-24T09:08:53Z
department:
- _id: '208'
issue: Profil 12
language:
- iso: ger
main_file_link:
- url: https://www.bwpat.de/profil12_kremer/sloane-h_profil12.pdf
page: 1-16
publication: bwp@
publication_status: published
status: public
title: 'Zwei Perspektiven auf den Übergang in ein Studium: eine imaginäre Diskussion
zwischen Wirtschaftspädagogik und Soziologie '
type: journal_article
user_id: '48206'
year: '2025'
...
---
_id: '60360'
author:
- first_name: Christian
full_name: Fuchs, Christian
id: '21863'
last_name: Fuchs
orcid: 0000-0003-0589-4579
citation:
ama: Fuchs C. What is Digital Fascism? . St Antony’s International Review.
2025;20(1):26-39.
apa: Fuchs, C. (2025). What is Digital Fascism? . St. Antony’s International
Review, 20(1), 26–39.
bibtex: '@article{Fuchs_2025, title={What is Digital Fascism? }, volume={20}, number={1},
journal={St. Antony’s International Review}, author={Fuchs, Christian}, year={2025},
pages={26–39} }'
chicago: 'Fuchs, Christian. “What Is Digital Fascism? .” St. Antony’s International
Review 20, no. 1 (2025): 26–39.'
ieee: C. Fuchs, “What is Digital Fascism? ,” St. Antony’s International Review,
vol. 20, no. 1, pp. 26–39, 2025.
mla: Fuchs, Christian. “What Is Digital Fascism? .” St. Antony’s International
Review, vol. 20, no. 1, 2025, pp. 26–39.
short: C. Fuchs, St. Antony’s International Review 20 (2025) 26–39.
date_created: 2025-06-24T15:10:28Z
date_updated: 2025-06-24T15:10:32Z
department:
- _id: '136'
- _id: '11'
intvolume: ' 20'
issue: '1'
language:
- iso: eng
page: 26-39
project:
- _id: '1086'
name: 'PÖDIM: Politische Ökonomie der digitalen Medien und der digitalen Kommunikation'
publication: St. Antony’s International Review
status: public
title: 'What is Digital Fascism? '
type: journal_article
user_id: '21863'
volume: 20
year: '2025'
...
---
_id: '60364'
author:
- first_name: Melina
full_name: Wallner, Melina
id: '45445'
last_name: Wallner
citation:
ama: Wallner M. Dreiecke spiegeln. Herstellen und Untersuchen achsensymmetrischer
Figuren. Mathematik differenziert. 2025;(2):32-37.
apa: Wallner, M. (2025). Dreiecke spiegeln. Herstellen und Untersuchen achsensymmetrischer
Figuren. Mathematik Differenziert, 2, 32–37.
bibtex: '@article{Wallner_2025, title={Dreiecke spiegeln. Herstellen und Untersuchen
achsensymmetrischer Figuren}, number={2}, journal={Mathematik differenziert},
author={Wallner, Melina}, year={2025}, pages={32–37} }'
chicago: 'Wallner, Melina. “Dreiecke Spiegeln. Herstellen Und Untersuchen Achsensymmetrischer
Figuren.” Mathematik Differenziert, no. 2 (2025): 32–37.'
ieee: M. Wallner, “Dreiecke spiegeln. Herstellen und Untersuchen achsensymmetrischer
Figuren,” Mathematik differenziert, no. 2, pp. 32–37, 2025.
mla: Wallner, Melina. “Dreiecke Spiegeln. Herstellen Und Untersuchen Achsensymmetrischer
Figuren.” Mathematik Differenziert, no. 2, 2025, pp. 32–37.
short: M. Wallner, Mathematik Differenziert (2025) 32–37.
date_created: 2025-06-25T08:47:48Z
date_updated: 2025-06-25T08:48:04Z
issue: '2'
language:
- iso: eng
page: 32-37
publication: Mathematik differenziert
related_material:
link:
- relation: confirmation
url: https://www.westermann.de/anlage/4675020/Dreiecke-spiegeln-Herstellen-und-Untersuchen-achsensymmetrischer-Figuren?gclid=CjwKCAjwvO7CBhAqEiwA9q2YJXRUpl50kURhrVnWEcMtVCy2611aUv-zqp8tqTo5X3Wl4xZDCJ3tDRoC3kMQAvD_BwE
status: public
title: Dreiecke spiegeln. Herstellen und Untersuchen achsensymmetrischer Figuren
type: journal_article
user_id: '45445'
year: '2025'
...
---
_id: '60117'
abstract:
- lang: eng
text: "Zusammenfassung\r\n Kinder verbringen
zunehmend mehr Zeit in öffentlichen Bildungseinrichtungen. Eine zentrale Bildungsinstitution
ist die Ganztagsgrundschule. Die dortige Planung und Umsetzung von Bewegung und
Sport ist bisher nur punktuell beforscht. Es mangelt unter anderem an Befunden
aus der Sicht der verschiedenen Akteur*innen sowie an Kenntnissen zur bewegungsbezogenen
Qualifikation des Personals.\r\n Im Rahmen der vorliegenden
Teilstudie des Projektes „Move For Health“ werden diese Desiderate aufgegriffen.
Die Untersuchung erfolgte mittels qualitativer Interviews an acht Ganztagsgrundschulen.
Es wurden 52 Interviews mit insgesamt 140 Personen durchgeführt. Diese setzen
sich aus acht Fokusgruppeninterviews mit im Ganztag tätigem Personal sowie 44 Interviews
mit Kindern der dritten und vierten Klasse zusammen.\r\n Die
Resultate zeigen, dass Bewegung übergreifend in unterschiedlichen Inszenierungen
stattfindet und auch von den Akteur*innen als wesentlich erachtet wird. Grundsätzlich
sehen alle Befragten die Relevanz von Bewegung, benennen jedoch konkrete Bedarfe
und Wünsche, die sich sowohl auf Räume und Materialen als auch auf Wissen und
Kompetenzen (bspw. im methodisch-didaktischen Bereich) beziehen. Kinder artikulieren
im pädagogischen Spannungsfeld von Gegenwartserfüllung und Zukunftsperspektive
vielfältige Bedürfnisse und Ideen zur Ausgestaltung. Dem Personal mangelt es häufig
an Kompetenzen im methodisch-didaktischen Bereich oder an Wissen über das Thema
Sicherheit, um die Bewegung entsprechend zu inszenieren."
author:
- first_name: Ida
full_name: Noetzel, Ida
id: '92890'
last_name: Noetzel
orcid: 0009-0008-5551-4638
- first_name: Nils
full_name: Kaufmann, Nils
last_name: Kaufmann
- first_name: Nils
full_name: Neuber, Nils
last_name: Neuber
- first_name: Elisabeth
full_name: von Plettenberg, Elisabeth
last_name: von Plettenberg
- first_name: Nicole
full_name: Satzinger, Nicole
id: '16119'
last_name: Satzinger
- first_name: Stefan
full_name: Schröder, Stefan
last_name: Schröder
- first_name: Jessica
full_name: Süßenbach, Jessica
last_name: Süßenbach
- first_name: Miriam
full_name: Kehne, Miriam
id: '129'
last_name: Kehne
citation:
ama: Noetzel I, Kaufmann N, Neuber N, et al. Bewegung, Spiel und Sport im Ganztag
an Grundschulen – Eine qualitative Interviewstudie zur Perspektive von pädagogischem
Personal und Kindern Movement, play and sport in all-day primary schools—a qualitative
interview study from the perspective of pedagogical staff and children. Forum
Kinder- und Jugendsport. 2025;6(1):7-17. doi:10.1007/s43594-025-00147-5
apa: Noetzel, I., Kaufmann, N., Neuber, N., von Plettenberg, E., Satzinger, N.,
Schröder, S., Süßenbach, J., & Kehne, M. (2025). Bewegung, Spiel und Sport
im Ganztag an Grundschulen – Eine qualitative Interviewstudie zur Perspektive
von pädagogischem Personal und Kindern Movement, play and sport in all-day primary
schools—a qualitative interview study from the perspective of pedagogical staff
and children. Forum Kinder- und Jugendsport, 6(1), 7–17. https://doi.org/10.1007/s43594-025-00147-5
bibtex: '@article{Noetzel_Kaufmann_Neuber_von Plettenberg_Satzinger_Schröder_Süßenbach_Kehne_2025,
title={Bewegung, Spiel und Sport im Ganztag an Grundschulen – Eine qualitative
Interviewstudie zur Perspektive von pädagogischem Personal und Kindern Movement,
play and sport in all-day primary schools—a qualitative interview study from the
perspective of pedagogical staff and children}, volume={6}, DOI={10.1007/s43594-025-00147-5},
number={1}, journal={Forum Kinder- und Jugendsport}, publisher={Springer Science
and Business Media LLC}, author={Noetzel, Ida and Kaufmann, Nils and Neuber, Nils
and von Plettenberg, Elisabeth and Satzinger, Nicole and Schröder, Stefan and
Süßenbach, Jessica and Kehne, Miriam}, year={2025}, pages={7–17} }'
chicago: 'Noetzel, Ida, Nils Kaufmann, Nils Neuber, Elisabeth von Plettenberg, Nicole
Satzinger, Stefan Schröder, Jessica Süßenbach, and Miriam Kehne. “Bewegung, Spiel
und Sport im Ganztag an Grundschulen – Eine qualitative Interviewstudie zur Perspektive
von pädagogischem Personal und Kindern Movement, play and sport in all-day primary
schools—a qualitative interview study from the perspective of pedagogical staff
and children.” Forum Kinder- und Jugendsport 6, no. 1 (2025): 7–17. https://doi.org/10.1007/s43594-025-00147-5.'
ieee: 'I. Noetzel et al., “Bewegung, Spiel und Sport im Ganztag an Grundschulen –
Eine qualitative Interviewstudie zur Perspektive von pädagogischem Personal und
Kindern Movement, play and sport in all-day primary schools—a qualitative interview
study from the perspective of pedagogical staff and children,” Forum Kinder-
und Jugendsport, vol. 6, no. 1, pp. 7–17, 2025, doi: 10.1007/s43594-025-00147-5.'
mla: Noetzel, Ida, et al. “Bewegung, Spiel und Sport im Ganztag an Grundschulen –
Eine qualitative Interviewstudie zur Perspektive von pädagogischem Personal und
Kindern Movement, play and sport in all-day primary schools—a qualitative interview
study from the perspective of pedagogical staff and children.” Forum Kinder-
und Jugendsport, vol. 6, no. 1, Springer Science and Business Media LLC, 2025,
pp. 7–17, doi:10.1007/s43594-025-00147-5.
short: I. Noetzel, N. Kaufmann, N. Neuber, E. von Plettenberg, N. Satzinger, S.
Schröder, J. Süßenbach, M. Kehne, Forum Kinder- und Jugendsport 6 (2025) 7–17.
date_created: 2025-06-03T09:37:27Z
date_updated: 2025-06-25T09:00:31Z
department:
- _id: '17'
- _id: '318'
doi: 10.1007/s43594-025-00147-5
intvolume: ' 6'
issue: '1'
language:
- iso: ger
page: 7-17
publication: Forum Kinder- und Jugendsport
publication_identifier:
issn:
- 2730-7212
- 2730-7220
publication_status: published
publisher: Springer Science and Business Media LLC
status: public
title: Bewegung, Spiel und Sport im Ganztag an Grundschulen – Eine qualitative Interviewstudie
zur Perspektive von pädagogischem Personal und Kindern Movement, play and sport
in all-day primary schools—a qualitative interview study from the perspective of
pedagogical staff and children
type: journal_article
user_id: '129'
volume: 6
year: '2025'
...
---
_id: '60370'
author:
- first_name: Julia
full_name: Hüllweg, Julia
id: '7247'
last_name: Hüllweg
- first_name: Alisa
full_name: Blachut, Alisa
id: '37811'
last_name: Blachut
citation:
ama: 'Hüllweg J, Blachut A. Der Deutschtreff (Universität Paderborn). In: Stadler-Altmann
U, Herrmann F, Kihm P, Schulte-Buskase A, eds. Atlas der Hochschullernwerkstätten.
Ein (un-)vollständiges Kompendium. Klinkhardt; 2025:452–461.'
apa: Hüllweg, J., & Blachut, A. (2025). Der Deutschtreff (Universität Paderborn).
In U. Stadler-Altmann, F. Herrmann, P. Kihm, & A. Schulte-Buskase (Eds.),
Atlas der Hochschullernwerkstätten. Ein (un-)vollständiges Kompendium.
(pp. 452–461). Klinkhardt.
bibtex: '@inbook{Hüllweg_Blachut_2025, place={Bad Heilbrunn}, title={Der Deutschtreff
(Universität Paderborn)}, booktitle={Atlas der Hochschullernwerkstätten. Ein (un-)vollständiges
Kompendium.}, publisher={Klinkhardt}, author={Hüllweg, Julia and Blachut, Alisa},
editor={Stadler-Altmann, Ulrike and Herrmann, Franziska and Kihm, Pascal and Schulte-Buskase,
Alina}, year={2025}, pages={452–461} }'
chicago: 'Hüllweg, Julia, and Alisa Blachut. “Der Deutschtreff (Universität Paderborn).”
In Atlas der Hochschullernwerkstätten. Ein (un-)vollständiges Kompendium.,
edited by Ulrike Stadler-Altmann, Franziska Herrmann, Pascal Kihm, and Alina Schulte-Buskase,
452–461. Bad Heilbrunn: Klinkhardt, 2025.'
ieee: 'J. Hüllweg and A. Blachut, “Der Deutschtreff (Universität Paderborn),” in
Atlas der Hochschullernwerkstätten. Ein (un-)vollständiges Kompendium.,
U. Stadler-Altmann, F. Herrmann, P. Kihm, and A. Schulte-Buskase, Eds. Bad Heilbrunn:
Klinkhardt, 2025, pp. 452–461.'
mla: Hüllweg, Julia, and Alisa Blachut. “Der Deutschtreff (Universität Paderborn).”
Atlas der Hochschullernwerkstätten. Ein (un-)vollständiges Kompendium.,
edited by Ulrike Stadler-Altmann et al., Klinkhardt, 2025, pp. 452–461.
short: 'J. Hüllweg, A. Blachut, in: U. Stadler-Altmann, F. Herrmann, P. Kihm, A.
Schulte-Buskase (Eds.), Atlas der Hochschullernwerkstätten. Ein (un-)vollständiges
Kompendium., Klinkhardt, Bad Heilbrunn, 2025, pp. 452–461.'
date_created: 2025-06-25T09:10:46Z
date_updated: 2025-06-25T09:21:50Z
department:
- _id: '5'
editor:
- first_name: Ulrike
full_name: Stadler-Altmann, Ulrike
last_name: Stadler-Altmann
- first_name: Franziska
full_name: Herrmann, Franziska
last_name: Herrmann
- first_name: Pascal
full_name: Kihm, Pascal
last_name: Kihm
- first_name: Alina
full_name: Schulte-Buskase, Alina
last_name: Schulte-Buskase
language:
- iso: ger
page: 452–461
place: Bad Heilbrunn
publication: Atlas der Hochschullernwerkstätten. Ein (un-)vollständiges Kompendium.
publisher: Klinkhardt
status: public
title: Der Deutschtreff (Universität Paderborn)
type: book_chapter
user_id: '7247'
year: '2025'
...
---
_id: '60381'
author:
- first_name: Matthias
full_name: Philipper, Matthias
last_name: Philipper
citation:
ama: 'Philipper M. Mastering Temporal Challenges – Zeitwohlstand und Zeiterleben
iranischer Studierender in Deutschland. In: Geschlecht und Gerechtigkeit.
Springer Fachmedien Wiesbaden; 2025. doi:10.1007/978-3-658-46935-1_11'
apa: Philipper, M. (2025). Mastering Temporal Challenges – Zeitwohlstand und Zeiterleben
iranischer Studierender in Deutschland. In Geschlecht und Gerechtigkeit.
Springer Fachmedien Wiesbaden. https://doi.org/10.1007/978-3-658-46935-1_11
bibtex: '@inbook{Philipper_2025, place={Wiesbaden}, title={Mastering Temporal Challenges
– Zeitwohlstand und Zeiterleben iranischer Studierender in Deutschland}, DOI={10.1007/978-3-658-46935-1_11},
booktitle={Geschlecht und Gerechtigkeit}, publisher={Springer Fachmedien Wiesbaden},
author={Philipper, Matthias}, year={2025} }'
chicago: 'Philipper, Matthias. “Mastering Temporal Challenges – Zeitwohlstand und
Zeiterleben iranischer Studierender in Deutschland.” In Geschlecht und Gerechtigkeit.
Wiesbaden: Springer Fachmedien Wiesbaden, 2025. https://doi.org/10.1007/978-3-658-46935-1_11.'
ieee: 'M. Philipper, “Mastering Temporal Challenges – Zeitwohlstand und Zeiterleben
iranischer Studierender in Deutschland,” in Geschlecht und Gerechtigkeit,
Wiesbaden: Springer Fachmedien Wiesbaden, 2025.'
mla: Philipper, Matthias. “Mastering Temporal Challenges – Zeitwohlstand und Zeiterleben
iranischer Studierender in Deutschland.” Geschlecht und Gerechtigkeit,
Springer Fachmedien Wiesbaden, 2025, doi:10.1007/978-3-658-46935-1_11.
short: 'M. Philipper, in: Geschlecht und Gerechtigkeit, Springer Fachmedien Wiesbaden,
Wiesbaden, 2025.'
date_created: 2025-06-25T17:12:46Z
date_updated: 2025-06-25T17:23:40Z
doi: 10.1007/978-3-658-46935-1_11
language:
- iso: ger
place: Wiesbaden
publication: Geschlecht und Gerechtigkeit
publication_identifier:
isbn:
- '9783658469344'
- '9783658469351'
publication_status: published
publisher: Springer Fachmedien Wiesbaden
status: public
title: Mastering Temporal Challenges – Zeitwohlstand und Zeiterleben iranischer Studierender
in Deutschland
type: book_chapter
user_id: '29497'
year: '2025'
...
---
_id: '60417'
abstract:
- lang: eng
text: "Was macht gelungene Hochschullehre aus? Und an welchen Stellschrauben kann
ich drehen, um die eigene Lehre zu verbessern? Das zweibändige \"Praxishandbuch
Hochschullehre\" bietet als Standardwerk Orientierung bei didaktischen Fragen
und beleuchtet aktuelle Entwicklungen des Bereichs. \r\nIn Band II setzen sich
die Beiträger:innen mit dem Prüfen und Bewerten von Studierenden auseinander,
geben Tipps zu Feedback und Evaluation und widmen sich den Themen Digitalisierung,
Nachhaltigkeit sowie Barrierefreiheit. Angereichert mit Abbildungen, Definitionen,
Schlagworten, Schritt-für-Schritt-Anleitungen und einem umfangreichen Glossar
lädt der anwendungsorientierte Leitfaden alle Lehrenden dazu ein, sich aktiv mit
den wesentlichen Inhalten der Hochschullehre auseinanderzusetzen – unabhängig
von Fachrichtung und Erfahrungsstufe.\r\nutb+: Zusätzlich zum Buch stehen zu einigen
Beiträgen hilfreiche Materialien wie Verlaufsprotokolle, Vorbereitungs- und Bewertungsbögen
zum Download bereit.\r\nVerfügbar in drei Ausgabearten: Print, E-Book (PDF), Web-Book
(Buch als Website). Das Web-Book integriert Buchinhalte und digitale Elemente.
Für Print und E-Book sind die digitalen Materialien über utb.de kostenlos abrufbar."
author:
- first_name: Judith
full_name: Osthushenrich, Judith
id: '12360'
last_name: Osthushenrich
citation:
ama: 'Osthushenrich J. Kollegiales Feedback in der Hochschullehre. In: Vöing N,
ed. Praxishandbuch Hochschullehre II - Bewertung, Digitalisierung und Barrierefreiheit.
utb GmbH; 2025. doi:10.36198/9783838563305'
apa: Osthushenrich, J. (2025). Kollegiales Feedback in der Hochschullehre. In N.
Vöing (Ed.), Praxishandbuch Hochschullehre II - Bewertung, Digitalisierung
und Barrierefreiheit. utb GmbH. https://doi.org/10.36198/9783838563305
bibtex: '@inbook{Osthushenrich_2025, place={Stuttgart, Deutschland}, title={Kollegiales
Feedback in der Hochschullehre}, DOI={10.36198/9783838563305},
booktitle={Praxishandbuch Hochschullehre II - Bewertung, Digitalisierung und Barrierefreiheit},
publisher={utb GmbH}, author={Osthushenrich, Judith}, editor={Vöing, Nerea}, year={2025}
}'
chicago: 'Osthushenrich, Judith. “Kollegiales Feedback in der Hochschullehre.” In
Praxishandbuch Hochschullehre II - Bewertung, Digitalisierung und Barrierefreiheit,
edited by Nerea Vöing. Stuttgart, Deutschland: utb GmbH, 2025. https://doi.org/10.36198/9783838563305.'
ieee: 'J. Osthushenrich, “Kollegiales Feedback in der Hochschullehre,” in Praxishandbuch
Hochschullehre II - Bewertung, Digitalisierung und Barrierefreiheit, N. Vöing,
Ed. Stuttgart, Deutschland: utb GmbH, 2025.'
mla: Osthushenrich, Judith. “Kollegiales Feedback in der Hochschullehre.” Praxishandbuch
Hochschullehre II - Bewertung, Digitalisierung und Barrierefreiheit, edited
by Nerea Vöing, utb GmbH, 2025, doi:10.36198/9783838563305.
short: 'J. Osthushenrich, in: N. Vöing (Ed.), Praxishandbuch Hochschullehre II -
Bewertung, Digitalisierung und Barrierefreiheit, utb GmbH, Stuttgart, Deutschland,
2025.'
date_created: 2025-06-26T10:42:07Z
date_updated: 2025-06-26T10:48:54Z
doi: 10.36198/9783838563305
editor:
- first_name: Nerea
full_name: Vöing, Nerea
last_name: Vöing
language:
- iso: ger
main_file_link:
- open_access: '1'
url: https://elibrary.utb.de/doi/epdf/10.36198/9783838563305-284-315
oa: '1'
place: Stuttgart, Deutschland
publication: Praxishandbuch Hochschullehre II - Bewertung, Digitalisierung und Barrierefreiheit
publication_identifier:
isbn:
- '9783838563305'
publication_status: published
publisher: utb GmbH
status: public
title: Kollegiales Feedback in der Hochschullehre
type: book_chapter
user_id: '12360'
year: '2025'
...
---
_id: '60414'
author:
- first_name: David
full_name: Bartlitz, David
id: '104560'
last_name: Bartlitz
orcid: '0000-0003-2967-8299 '
citation:
ama: Bartlitz D. Angabe der Auszahlungsbedingungen bei einem Recht zu deren nachträglicher
Abänderung. Anmerkung zu BGH, Urt. v. 17. 12. 2024 - XI ZR 314/21. Entscheidungsanmerkungen
zum Wirtschafts- und Bankrecht (WuB). 2025;(4):124-128.
apa: Bartlitz, D. (2025). Angabe der Auszahlungsbedingungen bei einem Recht zu deren
nachträglicher Abänderung. Anmerkung zu BGH, Urt. v. 17. 12. 2024 - XI ZR 314/21.
Entscheidungsanmerkungen zum Wirtschafts- und Bankrecht (WuB), 4,
124–128.
bibtex: '@article{Bartlitz_2025, title={Angabe der Auszahlungsbedingungen bei einem
Recht zu deren nachträglicher Abänderung. Anmerkung zu BGH, Urt. v. 17. 12. 2024
- XI ZR 314/21}, number={4}, journal={Entscheidungsanmerkungen zum Wirtschafts-
und Bankrecht (WuB)}, author={Bartlitz, David}, year={2025}, pages={124–128} }'
chicago: 'Bartlitz, David. “Angabe der Auszahlungsbedingungen bei einem Recht zu
deren nachträglicher Abänderung. Anmerkung zu BGH, Urt. v. 17. 12. 2024 - XI ZR
314/21.” Entscheidungsanmerkungen zum Wirtschafts- und Bankrecht (WuB),
no. 4 (2025): 124–28.'
ieee: D. Bartlitz, “Angabe der Auszahlungsbedingungen bei einem Recht zu deren nachträglicher
Abänderung. Anmerkung zu BGH, Urt. v. 17. 12. 2024 - XI ZR 314/21,” Entscheidungsanmerkungen
zum Wirtschafts- und Bankrecht (WuB), no. 4, pp. 124–128, 2025.
mla: Bartlitz, David. “Angabe der Auszahlungsbedingungen bei einem Recht zu deren
nachträglicher Abänderung. Anmerkung zu BGH, Urt. v. 17. 12. 2024 - XI ZR 314/21.”
Entscheidungsanmerkungen zum Wirtschafts- und Bankrecht (WuB), no. 4, 2025,
pp. 124–28.
short: D. Bartlitz, Entscheidungsanmerkungen zum Wirtschafts- und Bankrecht (WuB)
(2025) 124–128.
date_created: 2025-06-26T09:51:29Z
date_updated: 2025-06-26T09:51:55Z
department:
- _id: '845'
issue: '4'
language:
- iso: ger
main_file_link:
- url: https://www.wiso-net.de/document/WUB__17e9b4c7f6714b0b3f9549287dcf0c259d90d612
page: 124-128
publication: Entscheidungsanmerkungen zum Wirtschafts- und Bankrecht (WuB)
publication_identifier:
issn:
- 0178-2169
publication_status: published
status: public
title: Angabe der Auszahlungsbedingungen bei einem Recht zu deren nachträglicher Abänderung.
Anmerkung zu BGH, Urt. v. 17. 12. 2024 - XI ZR 314/21
type: journal_article
user_id: '95606'
year: '2025'
...
---
_id: '60419'
author:
- first_name: David
full_name: Bartlitz, David
id: '104560'
last_name: Bartlitz
orcid: '0000-0003-2967-8299 '
citation:
ama: Bartlitz D. Weigerung der Gewährleistung der Interoperabilität einer Plattform
mit App eines Drittunternehmens. Anmerkung zu EuGH, Urt. v. 25. 2. 2025 - C-233/23.
Europäische Zeitschrift für Wirtschaftsrecht (EuZW). 2025;(10):483-484.
apa: Bartlitz, D. (2025). Weigerung der Gewährleistung der Interoperabilität einer
Plattform mit App eines Drittunternehmens. Anmerkung zu EuGH, Urt. v. 25. 2. 2025
- C-233/23. Europäische Zeitschrift für Wirtschaftsrecht (EuZW), 10,
483–484.
bibtex: '@article{Bartlitz_2025, title={Weigerung der Gewährleistung der Interoperabilität
einer Plattform mit App eines Drittunternehmens. Anmerkung zu EuGH, Urt. v. 25.
2. 2025 - C-233/23}, number={10}, journal={Europäische Zeitschrift für Wirtschaftsrecht
(EuZW)}, author={Bartlitz, David}, year={2025}, pages={483–484} }'
chicago: 'Bartlitz, David. “Weigerung der Gewährleistung der Interoperabilität einer
Plattform mit App eines Drittunternehmens. Anmerkung zu EuGH, Urt. v. 25. 2. 2025
- C-233/23.” Europäische Zeitschrift für Wirtschaftsrecht (EuZW), no. 10
(2025): 483–84.'
ieee: D. Bartlitz, “Weigerung der Gewährleistung der Interoperabilität einer Plattform
mit App eines Drittunternehmens. Anmerkung zu EuGH, Urt. v. 25. 2. 2025 - C-233/23,”
Europäische Zeitschrift für Wirtschaftsrecht (EuZW), no. 10, pp. 483–484,
2025.
mla: Bartlitz, David. “Weigerung der Gewährleistung der Interoperabilität einer
Plattform mit App eines Drittunternehmens. Anmerkung zu EuGH, Urt. v. 25. 2. 2025
- C-233/23.” Europäische Zeitschrift für Wirtschaftsrecht (EuZW), no. 10,
2025, pp. 483–84.
short: D. Bartlitz, Europäische Zeitschrift für Wirtschaftsrecht (EuZW) (2025) 483–484.
date_created: 2025-06-26T12:32:28Z
date_updated: 2025-06-26T12:43:10Z
department:
- _id: '845'
issue: '10'
language:
- iso: ger
main_file_link:
- url: https://beck-online.beck.de/Bcid/Y-300-Z-EUZW-B-2025-H-10-Gl-5
page: 483-484
publication: Europäische Zeitschrift für Wirtschaftsrecht (EuZW)
publication_status: published
status: public
title: Weigerung der Gewährleistung der Interoperabilität einer Plattform mit App
eines Drittunternehmens. Anmerkung zu EuGH, Urt. v. 25. 2. 2025 - C-233/23
type: journal_article
user_id: '95606'
year: '2025'
...
---
_id: '60432'
abstract:
- lang: eng
text: "The Quantum k-SAT problem is the quantum generalization of the k-SAT problem.\r\nIt
is the problem whether a given local Hamiltonian is frustration-free.\r\nFrustration-free
means that the ground state of the k-local Hamiltonian\r\nminimizes the energy
of every local interaction term simultaneously. This is a\r\ncentral question
in quantum physics and a canonical QMA_1-complete problem. The\r\nQuantum k-SAT
problem is not as well studied as the classical k-SAT problem in\r\nterms of special
tractable cases, approximation algorithms and parameterized\r\ncomplexity. In
this paper, we will give a graph-theoretic study of the Quantum\r\nk-SAT problem
with the structures core and radius. These hypergraph structures\r\nare important
to solve the Quantum k-SAT problem. We can solve a Quantum k-SAT\r\ninstance in
polynomial time if the derived hypergraph has a core of size n-m+a,\r\nwhere a
is a constant, and the radius is at most logarithmic. If it exists, we\r\ncan
find a core of size n-m+a with the best possible radius in polynomial time,\r\nwhereas
finding a general minimum core with minimal radius is NP-hard."
author:
- first_name: Simon-Luca
full_name: Kremer, Simon-Luca
last_name: Kremer
- first_name: Dorian
full_name: Rudolph, Dorian
id: '57863'
last_name: Rudolph
- first_name: Sevag
full_name: Gharibian, Sevag
id: '71541'
last_name: Gharibian
orcid: 0000-0002-9992-3379
citation:
ama: Kremer S-L, Rudolph D, Gharibian S. Quantum k-SAT Related Hypergraph Problems.
arXiv:250617066. Published online 2025.
apa: Kremer, S.-L., Rudolph, D., & Gharibian, S. (2025). Quantum k-SAT Related
Hypergraph Problems. In arXiv:2506.17066.
bibtex: '@article{Kremer_Rudolph_Gharibian_2025, title={Quantum k-SAT Related Hypergraph
Problems}, journal={arXiv:2506.17066}, author={Kremer, Simon-Luca and Rudolph,
Dorian and Gharibian, Sevag}, year={2025} }'
chicago: Kremer, Simon-Luca, Dorian Rudolph, and Sevag Gharibian. “Quantum K-SAT
Related Hypergraph Problems.” ArXiv:2506.17066, 2025.
ieee: S.-L. Kremer, D. Rudolph, and S. Gharibian, “Quantum k-SAT Related Hypergraph
Problems,” arXiv:2506.17066. 2025.
mla: Kremer, Simon-Luca, et al. “Quantum K-SAT Related Hypergraph Problems.” ArXiv:2506.17066,
2025.
short: S.-L. Kremer, D. Rudolph, S. Gharibian, ArXiv:2506.17066 (2025).
date_created: 2025-06-27T06:56:35Z
date_updated: 2025-06-27T06:57:03Z
external_id:
arxiv:
- '2506.17066'
language:
- iso: eng
publication: arXiv:2506.17066
status: public
title: Quantum k-SAT Related Hypergraph Problems
type: preprint
user_id: '71541'
year: '2025'
...
---
_id: '60290'
abstract:
- lang: eng
text: The constantly increasing demand for climate protection and resource conservation
requires innovative and versatile joining processes that improve adaptability
to the joining task and robustness to enable flexible manufacturing on a production
line. Therefore, the versatile SPR (V-SPR) and tumbling SPR (T-SPR) were developed.
Using the example of a mixed material combination HCT590X+Z (t0 = 1.0 mm) / EN
AW-6014 T4 (t0 = 2.0 mm), these processes were examined and compared with regard
to the binding mechanisms form closure and force closure using micrographs, non-destructive
resistance measurements and destructive torsion tests. For this purpose, a new
sample geometry was defined, and the methods were adapted to the SPR process variants.
author:
- first_name: Stephan
full_name: Lüder, Stephan
last_name: Lüder
- first_name: Pia Katharina
full_name: Holtkamp, Pia Katharina
id: '44935'
last_name: Holtkamp
- first_name: Simon
full_name: Wituschek, Simon
last_name: Wituschek
- first_name: Mathias
full_name: Bobbert, Mathias
id: '7850'
last_name: Bobbert
- first_name: Gerson
full_name: Meschut, Gerson
id: '32056'
last_name: Meschut
orcid: 0000-0002-2763-1246
- first_name: Michael
full_name: Lechner, Michael
last_name: Lechner
- first_name: Hans Christian
full_name: Schmale, Hans Christian
last_name: Schmale
citation:
ama: 'Lüder S, Holtkamp PK, Wituschek S, et al. Analysis of the binding mechanisms
depending on versatile process variants of self-piercing riveting. In: Meschut
G, Bobbert M, Duflou J, et al., eds. Materials Research Proceedings. Vol
52. Sheet Metal 2025. Materials Research Forum LLC; 2025:101-108. doi:10.21741/9781644903551-13'
apa: Lüder, S., Holtkamp, P. K., Wituschek, S., Bobbert, M., Meschut, G., Lechner,
M., & Schmale, H. C. (2025). Analysis of the binding mechanisms depending
on versatile process variants of self-piercing riveting. In G. Meschut, M. Bobbert,
J. Duflou, L. Fratini, H. Hagenah, P. A. F. Martins, M. Merklein, & F. Micari
(Eds.), Materials Research Proceedings (Vol. 52, pp. 101–108). Materials
Research Forum LLC. https://doi.org/10.21741/9781644903551-13
bibtex: '@inproceedings{Lüder_Holtkamp_Wituschek_Bobbert_Meschut_Lechner_Schmale_2025,
place={Millersville}, series={Sheet Metal 2025}, title={Analysis of the binding
mechanisms depending on versatile process variants of self-piercing riveting},
volume={52}, DOI={10.21741/9781644903551-13},
booktitle={Materials Research Proceedings}, publisher={Materials Research Forum
LLC}, author={Lüder, Stephan and Holtkamp, Pia Katharina and Wituschek, Simon
and Bobbert, Mathias and Meschut, Gerson and Lechner, Michael and Schmale, Hans
Christian}, editor={Meschut, Gerson and Bobbert, Mathias and Duflou, Joost and
Fratini, Livan and Hagenah, Hinnerk and Martins, Paulo A. F. and Merklein, Marion
and Micari, Fabrizio}, year={2025}, pages={101–108}, collection={Sheet Metal 2025}
}'
chicago: 'Lüder, Stephan, Pia Katharina Holtkamp, Simon Wituschek, Mathias Bobbert,
Gerson Meschut, Michael Lechner, and Hans Christian Schmale. “Analysis of the
Binding Mechanisms Depending on Versatile Process Variants of Self-Piercing Riveting.”
In Materials Research Proceedings, edited by Gerson Meschut, Mathias Bobbert,
Joost Duflou, Livan Fratini, Hinnerk Hagenah, Paulo A. F. Martins, Marion Merklein,
and Fabrizio Micari, 52:101–8. Sheet Metal 2025. Millersville: Materials Research
Forum LLC, 2025. https://doi.org/10.21741/9781644903551-13.'
ieee: 'S. Lüder et al., “Analysis of the binding mechanisms depending on
versatile process variants of self-piercing riveting,” in Materials Research
Proceedings, Paderborn, 2025, vol. 52, pp. 101–108, doi: 10.21741/9781644903551-13.'
mla: Lüder, Stephan, et al. “Analysis of the Binding Mechanisms Depending on Versatile
Process Variants of Self-Piercing Riveting.” Materials Research Proceedings,
edited by Gerson Meschut et al., vol. 52, Materials Research Forum LLC, 2025,
pp. 101–08, doi:10.21741/9781644903551-13.
short: 'S. Lüder, P.K. Holtkamp, S. Wituschek, M. Bobbert, G. Meschut, M. Lechner,
H.C. Schmale, in: G. Meschut, M. Bobbert, J. Duflou, L. Fratini, H. Hagenah, P.A.F.
Martins, M. Merklein, F. Micari (Eds.), Materials Research Proceedings, Materials
Research Forum LLC, Millersville, 2025, pp. 101–108.'
conference:
end_date: 2025-04-03
location: Paderborn
name: 21st International Conference on Sheet Metal
start_date: 2025-04-01
date_created: 2025-06-20T10:13:22Z
date_updated: 2025-06-27T08:19:26Z
department:
- _id: '630'
- _id: '43'
- _id: '157'
doi: 10.21741/9781644903551-13
editor:
- first_name: Gerson
full_name: Meschut, Gerson
last_name: Meschut
- first_name: Mathias
full_name: Bobbert, Mathias
last_name: Bobbert
- first_name: Joost
full_name: Duflou, Joost
last_name: Duflou
- first_name: Livan
full_name: Fratini, Livan
last_name: Fratini
- first_name: Hinnerk
full_name: Hagenah, Hinnerk
last_name: Hagenah
- first_name: Paulo A. F.
full_name: Martins, Paulo A. F.
last_name: Martins
- first_name: Marion
full_name: Merklein, Marion
last_name: Merklein
- first_name: Fabrizio
full_name: Micari, Fabrizio
last_name: Micari
extern: '1'
intvolume: ' 52'
keyword:
- Joining
- Self-Piercing Riveting
- Sheet Metal
language:
- iso: eng
page: 101 - 108
place: Millersville
project:
- _id: '131'
name: 'TRR 285 - A: TRR 285 - Project Area A'
- _id: '138'
name: 'TRR 285 – A04: TRR 285 - Subproject A04'
- _id: '133'
name: 'TRR 285 - C: TRR 285 - Project Area C'
- _id: '146'
name: 'TRR 285 – C02: TRR 285 - Subproject C02'
publication: Materials Research Proceedings
publication_identifier:
issn:
- 2474-395X
publication_status: published
publisher: Materials Research Forum LLC
quality_controlled: '1'
series_title: Sheet Metal 2025
status: public
title: Analysis of the binding mechanisms depending on versatile process variants
of self-piercing riveting
type: conference
user_id: '44935'
volume: 52
year: '2025'
...
---
_id: '60441'
abstract:
- lang: eng
text: Conventional mechanical joining processes are typically rigid in their tool
systems and can only react to changing process and disturbance variables to a
limited extent. At the same time, various industries are increasingly trending
towards multi-material systems consisting of parts with varying geometric and
mechanical properties. Due to the varying properties, rigid mechanical joining
processes require sampling procedures and periodic changes of tool components
or auxiliary joining parts. Consequently, research is focusing on versatile mechanical
joining processes that allow increased control by modifying the process parameters.
Two processes based on self-piercing riveting can achieve a significant increase
in process influence possibilities through a multi-linear actuator as versatile
self-piercing riveting (V-SPR) and a tumbling superimposed actuator as tumbling
self-piercing riveting (T-SPR). Initial research into V-SPR has shown that this
process can be used to achieve a higher variation in overall package thickness
by adapting the rivet geometry and using multiple linear actuators. The T-SPR
process also enables increased material flow control by means of targeted compression
of the rivet using the tumbling actuator, thereby extending the range of joints
that can be manufactured. Based on these two processes, a combination of the two
mechanisms of action is to be developed.
article_number: '01069'
author:
- first_name: Pia Katharina
full_name: Holtkamp, Pia Katharina
id: '44935'
last_name: Holtkamp
- first_name: Simon
full_name: Wituschek, Simon
id: '83423'
last_name: Wituschek
- first_name: Michael
full_name: Lechner, Michael
last_name: Lechner
- first_name: Gerson
full_name: Meschut, Gerson
id: '32056'
last_name: Meschut
orcid: 0000-0002-2763-1246
citation:
ama: Holtkamp PK, Wituschek S, Lechner M, Meschut G. Integration of multiple-linear
and tumbling kinematics into self-piercing riveting. MATEC Web of Conferences.
2025;408. doi:10.1051/matecconf/202540801069
apa: Holtkamp, P. K., Wituschek, S., Lechner, M., & Meschut, G. (2025). Integration
of multiple-linear and tumbling kinematics into self-piercing riveting. MATEC
Web of Conferences, 408, Article 01069. https://doi.org/10.1051/matecconf/202540801069
bibtex: '@article{Holtkamp_Wituschek_Lechner_Meschut_2025, title={Integration of
multiple-linear and tumbling kinematics into self-piercing riveting}, volume={408},
DOI={10.1051/matecconf/202540801069},
number={01069}, journal={MATEC Web of Conferences}, publisher={EDP Sciences},
author={Holtkamp, Pia Katharina and Wituschek, Simon and Lechner, Michael and
Meschut, Gerson}, year={2025} }'
chicago: Holtkamp, Pia Katharina, Simon Wituschek, Michael Lechner, and Gerson Meschut.
“Integration of Multiple-Linear and Tumbling Kinematics into Self-Piercing Riveting.”
MATEC Web of Conferences 408 (2025). https://doi.org/10.1051/matecconf/202540801069.
ieee: 'P. K. Holtkamp, S. Wituschek, M. Lechner, and G. Meschut, “Integration of
multiple-linear and tumbling kinematics into self-piercing riveting,” MATEC
Web of Conferences, vol. 408, Art. no. 01069, 2025, doi: 10.1051/matecconf/202540801069.'
mla: Holtkamp, Pia Katharina, et al. “Integration of Multiple-Linear and Tumbling
Kinematics into Self-Piercing Riveting.” MATEC Web of Conferences, vol.
408, 01069, EDP Sciences, 2025, doi:10.1051/matecconf/202540801069.
short: P.K. Holtkamp, S. Wituschek, M. Lechner, G. Meschut, MATEC Web of Conferences
408 (2025).
date_created: 2025-06-27T08:27:42Z
date_updated: 2025-06-27T08:34:46Z
department:
- _id: '43'
- _id: '157'
doi: 10.1051/matecconf/202540801069
intvolume: ' 408'
language:
- iso: eng
project:
- _id: '130'
grant_number: '418701707'
name: 'TRR 285: TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen
Prozessketten'
- _id: '133'
name: 'TRR 285 - C: TRR 285 - Project Area C'
- _id: '146'
name: 'TRR 285 – C02: TRR 285 - Subproject C02'
publication: MATEC Web of Conferences
publication_identifier:
issn:
- 2261-236X
publication_status: published
publisher: EDP Sciences
quality_controlled: '1'
status: public
title: Integration of multiple-linear and tumbling kinematics into self-piercing riveting
type: journal_article
user_id: '44935'
volume: 408
year: '2025'
...
---
_id: '60439'
abstract:
- lang: eng
text: Abstract. Mechanical joints are traditionally analyzed through destructive
micrograph analysis, which may compromise internal geometry and morphology, as
evidenced by radial cracks in semi-tubular self-pierce riveting. In contrast,
industrial X-ray computed tomography (XCT) offers a non-destructive method for
component diagnosis, providing volumetric insights without damaging the sample
and enabling dimensional measurement. The DFG-funded Collaborative Research Center
TRR 285 is exploring XCT's application in assessing mechanical joinability across
various joining processes and materials, particularly in multi-material systems
like steel-aluminum joints. XCT faces challenges in accurately capturing multi-material
compositions, leading to artifacts that complicate interface detection. This research
aims to validate XCT for joint investigations, yielding quantitative characteristics
that surpass those from traditional micrograph analysis.
author:
- first_name: M.
full_name: Lechner, M.
last_name: Lechner
- first_name: Thomas
full_name: Borgert, Thomas
id: '83141'
last_name: Borgert
- first_name: Matthias
full_name: Busch, Matthias
id: '83421'
last_name: Busch
orcid: https://orcid.org/0000-0002-8456-3374
- first_name: A.
full_name: Harms, A.
last_name: Harms
- first_name: Pia Katharina
full_name: Holtkamp, Pia Katharina
id: '44935'
last_name: Holtkamp
- first_name: D.
full_name: Römisch, D.
last_name: Römisch
- first_name: Simon
full_name: Wituschek, Simon
id: '83423'
last_name: Wituschek
- first_name: Fabian
full_name: Kappe, Fabian
id: '66459'
last_name: Kappe
citation:
ama: 'Lechner M, Borgert T, Busch M, et al. Non-destructive testing in versatile
joining processes. In: Materials Research Proceedings. Vol 52. Materials
Research Forum LLC; 2025. doi:10.21741/9781644903551-12'
apa: Lechner, M., Borgert, T., Busch, M., Harms, A., Holtkamp, P. K., Römisch, D.,
Wituschek, S., & Kappe, F. (2025). Non-destructive testing in versatile joining
processes. Materials Research Proceedings, 52. https://doi.org/10.21741/9781644903551-12
bibtex: '@inproceedings{Lechner_Borgert_Busch_Harms_Holtkamp_Römisch_Wituschek_Kappe_2025,
title={Non-destructive testing in versatile joining processes}, volume={52}, DOI={10.21741/9781644903551-12},
booktitle={Materials Research Proceedings}, publisher={Materials Research Forum
LLC}, author={Lechner, M. and Borgert, Thomas and Busch, Matthias and Harms, A.
and Holtkamp, Pia Katharina and Römisch, D. and Wituschek, Simon and Kappe, Fabian},
year={2025} }'
chicago: Lechner, M., Thomas Borgert, Matthias Busch, A. Harms, Pia Katharina Holtkamp,
D. Römisch, Simon Wituschek, and Fabian Kappe. “Non-Destructive Testing in Versatile
Joining Processes.” In Materials Research Proceedings, Vol. 52. Materials
Research Forum LLC, 2025. https://doi.org/10.21741/9781644903551-12.
ieee: 'M. Lechner et al., “Non-destructive testing in versatile joining processes,”
in Materials Research Proceedings, 2025, vol. 52, doi: 10.21741/9781644903551-12.'
mla: Lechner, M., et al. “Non-Destructive Testing in Versatile Joining Processes.”
Materials Research Proceedings, vol. 52, Materials Research Forum LLC,
2025, doi:10.21741/9781644903551-12.
short: 'M. Lechner, T. Borgert, M. Busch, A. Harms, P.K. Holtkamp, D. Römisch, S.
Wituschek, F. Kappe, in: Materials Research Proceedings, Materials Research Forum
LLC, 2025.'
date_created: 2025-06-27T07:56:32Z
date_updated: 2025-06-27T08:17:00Z
department:
- _id: '43'
- _id: '157'
doi: 10.21741/9781644903551-12
intvolume: ' 52'
language:
- iso: eng
project:
- _id: '130'
grant_number: '418701707'
name: 'TRR 285: TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen
Prozessketten'
- _id: '133'
name: 'TRR 285 - C: TRR 285 - Project Area C'
- _id: '145'
name: 'TRR 285 – C01: TRR 285 - Subproject C01'
- _id: '147'
name: 'TRR 285 – C03: TRR 285 - Subproject C03'
- _id: '146'
name: 'TRR 285 – C02: TRR 285 - Subproject C02'
- _id: '149'
name: 'TRR 285 – C05: TRR 285 - Subproject C05'
publication: Materials Research Proceedings
publication_identifier:
issn:
- 2474-395X
publication_status: published
publisher: Materials Research Forum LLC
quality_controlled: '1'
status: public
title: Non-destructive testing in versatile joining processes
type: conference
user_id: '44935'
volume: 52
year: '2025'
...
---
_id: '60228'
abstract:
- lang: ger
text: Die Arbeiten Paula Modersohn-Beckers sind von weltweiter Berühmtheit. Ihr
Werk besticht durch Direktheit und Singularität ihres künstlerischen Ausdrucks.
Heute gilt sie als zentrale Wegbereiterin moderner Strömungen in Deutschland.
1 An ihrer künstlerischen Genese zu einer der bedeutendsten Vertreterinnen des
frühen Expressionismus ist ein Westfale, der Bildhauer Bernhard Hoetger, nicht
unbeteiligt, der ihr zu wichtigen Zeitpunkten ihres kurzen Lebens ein Wegbegleiter
war und der sie in das Bürener Land führte. Jene damals von Paula Modersohn-Becker
beschrittenen Wege können noch heute verfolgt werden. So zeichnen seit 1998 Schilder
und Erläuterungstafeln den Weg am Fluss Alme aus. Vorher sollte es Hoetger und
Modersohn-Becker aber in die Kunstkapitale um 1900 führen, nach Paris.
author:
- first_name: Carolin
full_name: Schreckenberg, Carolin
id: '71674'
last_name: Schreckenberg
citation:
ama: Schreckenberg C. Die Künstlerische Moderne Zu Besuch in Büren. Ein Blick
Auf Die Beziehung von Paula Modersohn-Becker Zum Westfälischen Künstler Bernhard
Hoetger. LibreCat University; 2025. doi:10.58079/143CB
apa: Schreckenberg, C. (2025). Die künstlerische Moderne zu Besuch in Büren.
Ein Blick auf die Beziehung von Paula Modersohn-Becker zum westfälischen Künstler
Bernhard Hoetger. LibreCat University. https://doi.org/10.58079/143CB
bibtex: '@book{Schreckenberg_2025, title={Die künstlerische Moderne zu Besuch in
Büren. Ein Blick auf die Beziehung von Paula Modersohn-Becker zum westfälischen
Künstler Bernhard Hoetger}, DOI={10.58079/143CB},
publisher={LibreCat University}, author={Schreckenberg, Carolin}, year={2025}
}'
chicago: Schreckenberg, Carolin. Die Künstlerische Moderne Zu Besuch in Büren.
Ein Blick Auf Die Beziehung von Paula Modersohn-Becker Zum Westfälischen Künstler
Bernhard Hoetger. LibreCat University, 2025. https://doi.org/10.58079/143CB.
ieee: C. Schreckenberg, Die künstlerische Moderne zu Besuch in Büren. Ein Blick
auf die Beziehung von Paula Modersohn-Becker zum westfälischen Künstler Bernhard
Hoetger. LibreCat University, 2025.
mla: Schreckenberg, Carolin. Die Künstlerische Moderne Zu Besuch in Büren. Ein
Blick Auf Die Beziehung von Paula Modersohn-Becker Zum Westfälischen Künstler
Bernhard Hoetger. LibreCat University, 2025, doi:10.58079/143CB.
short: C. Schreckenberg, Die Künstlerische Moderne Zu Besuch in Büren. Ein Blick
Auf Die Beziehung von Paula Modersohn-Becker Zum Westfälischen Künstler Bernhard
Hoetger, LibreCat University, 2025.
date_created: 2025-06-16T14:29:44Z
date_updated: 2025-06-27T13:14:53Z
doi: 10.58079/143CB
publisher: LibreCat University
status: public
title: Die künstlerische Moderne zu Besuch in Büren. Ein Blick auf die Beziehung von
Paula Modersohn-Becker zum westfälischen Künstler Bernhard Hoetger
type: research_data
user_id: '71674'
year: '2025'
...
---
_id: '53805'
abstract:
- lang: eng
text: The article introduces a method to learn dynamical systems that are governed
by Euler–Lagrange equations from data. The method is based on Gaussian process
regression and identifies continuous or discrete Lagrangians and is, therefore,
structure preserving by design. A rigorous proof of convergence as the distance
between observation data points converges to zero and lower bounds for convergence
rates are provided. Next to convergence guarantees, the method allows for quantification
of model uncertainty, which can provide a basis of adaptive sampling techniques.
We provide efficient uncertainty quantification of any observable that is linear
in the Lagrangian, including of Hamiltonian functions (energy) and symplectic
structures, which is of interest in the context of system identification. The
article overcomes major practical and theoretical difficulties related to the
ill-posedness of the identification task of (discrete) Lagrangians through a careful
design of geometric regularisation strategies and through an exploit of a relation
to convex minimisation problems in reproducing kernel Hilbert spaces.
article_type: original
author:
- first_name: Christian
full_name: Offen, Christian
id: '85279'
last_name: Offen
orcid: 0000-0002-5940-8057
citation:
ama: Offen C. Machine learning of continuous and discrete variational ODEs with
convergence guarantee and uncertainty quantification. Mathematics of Computation.
Published online 2025. doi:10.1090/mcom/4120
apa: Offen, C. (2025). Machine learning of continuous and discrete variational ODEs
with convergence guarantee and uncertainty quantification. Mathematics of Computation.
https://doi.org/10.1090/mcom/4120
bibtex: '@article{Offen_2025, title={Machine learning of continuous and discrete
variational ODEs with convergence guarantee and uncertainty quantification}, DOI={10.1090/mcom/4120}, journal={Mathematics
of Computation}, publisher={American Mathematical Society}, author={Offen, Christian},
year={2025} }'
chicago: Offen, Christian. “Machine Learning of Continuous and Discrete Variational
ODEs with Convergence Guarantee and Uncertainty Quantification.” Mathematics
of Computation, 2025. https://doi.org/10.1090/mcom/4120.
ieee: 'C. Offen, “Machine learning of continuous and discrete variational ODEs with
convergence guarantee and uncertainty quantification,” Mathematics of Computation,
2025, doi: 10.1090/mcom/4120.'
mla: Offen, Christian. “Machine Learning of Continuous and Discrete Variational
ODEs with Convergence Guarantee and Uncertainty Quantification.” Mathematics
of Computation, American Mathematical Society, 2025, doi:10.1090/mcom/4120.
short: C. Offen, Mathematics of Computation (2025).
date_created: 2024-04-30T16:04:40Z
date_updated: 2025-06-29T13:03:55Z
ddc:
- '510'
department:
- _id: '636'
doi: 10.1090/mcom/4120
external_id:
arxiv:
- arXiv:2404.19626
file:
- access_level: open_access
content_type: application/pdf
creator: coffen
date_created: 2025-05-02T13:20:31Z
date_updated: 2025-05-02T13:20:31Z
description: |-
The article introduces a method to learn dynamical systems that
are governed by Euler–Lagrange equations from data. The method is based on
Gaussian process regression and identifies continuous or discrete Lagrangians
and is, therefore, structure preserving by design. A rigorous proof of con-
vergence as the distance between observation data points converges to zero
and lower bounds for convergence rates are provided. Next to convergence
guarantees, the method allows for quantification of model uncertainty, which
can provide a basis of adaptive sampling techniques. We provide efficient uncertainty quantification of any observable that is linear in the Lagrangian,
including of Hamiltonian functions (energy) and symplectic structures, which
is of interest in the context of system identification. The article overcomes
major practical and theoretical difficulties related to the ill-posedness of the
identification task of (discrete) Lagrangians through a careful design of geometric regularisation strategies and through an exploit of a relation to convex
minimisation problems in reproducing kernel Hilbert spaces.
file_id: '59759'
file_name: L_Collocation_ODE_mcom-l-template.pdf
file_size: 1819189
relation: main_file
title: 'Machine learning of continuous and discrete variational ODEs with convergence
guarantee and uncertainty quantification '
file_date_updated: 2025-05-02T13:20:31Z
has_accepted_license: '1'
language:
- iso: eng
oa: '1'
project:
- _id: '52'
name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: Mathematics of Computation
publication_status: epub_ahead
publisher: American Mathematical Society
quality_controlled: '1'
related_material:
link:
- description: GitHub
relation: software
url: https://github.com/Christian-Offen/Lagrangian_GP
status: public
title: Machine learning of continuous and discrete variational ODEs with convergence
guarantee and uncertainty quantification
type: journal_article
user_id: '85279'
year: '2025'
...
---
_id: '60298'
abstract:
- lang: eng
text: In this work, we introduce PHOENIX, a highly optimized explicit open-source
solver for two-dimensional nonlinear Schrödinger equations with extensions. The
nonlinear Schrödinger equation and its extensions (Gross-Pitaevskii equation)
are widely studied to model and analyze complex phenomena in fields such as optics,
condensed matter physics, fluid dynamics, and plasma physics. It serves as a powerful
tool for understanding nonlinear wave dynamics, soliton formation, and the interplay
between nonlinearity, dispersion, and diffraction. By extending the nonlinear
Schrödinger equation, various physical effects such as non-Hermiticity, spin-orbit
interaction, and quantum optical aspects can be incorporated. PHOENIX is designed
to accommodate a wide range of applications by a straightforward extendability
without the need for user knowledge of computing architectures or performance
optimization. The high performance and power efficiency of PHOENIX are demonstrated
on a wide range of entry-class to high-end consumer and high-performance computing
GPUs and CPUs. Compared to a more conventional MATLAB implementation, a speedup
of up to three orders of magnitude and energy savings of up to 99.8% are achieved.
The performance is compared to a performance model showing that PHOENIX performs
close to the relevant performance bounds in many situations. The possibilities
of PHOENIX are demonstrated with a range of practical examples from the realm
of nonlinear (quantum) photonics in planar microresonators with active media including
exciton-polariton condensates. Examples range from solutions on very large grids,
the use of local optimization algorithms, to Monte Carlo ensemble evolutions with
quantum noise enabling the tomography of the system's quantum state.
article_number: '109689'
article_type: original
author:
- first_name: Jan
full_name: Wingenbach, Jan
id: '69187'
last_name: Wingenbach
- first_name: David
full_name: Bauch, David
id: '44172'
last_name: Bauch
- first_name: Xuekai
full_name: Ma, Xuekai
id: '59416'
last_name: Ma
- first_name: Robert
full_name: Schade, Robert
id: '75963'
last_name: Schade
orcid: 0000-0002-6268-5397
- first_name: Christian
full_name: Plessl, Christian
id: '16153'
last_name: Plessl
orcid: 0000-0001-5728-9982
- first_name: Stefan
full_name: Schumacher, Stefan
id: '27271'
last_name: Schumacher
orcid: 0000-0003-4042-4951
citation:
ama: Wingenbach J, Bauch D, Ma X, Schade R, Plessl C, Schumacher S. PHOENIX – Paderborn
highly optimized and energy efficient solver for two-dimensional nonlinear Schrödinger
equations with integrated extensions. Computer Physics Communications.
2025;315. doi:10.1016/j.cpc.2025.109689
apa: Wingenbach, J., Bauch, D., Ma, X., Schade, R., Plessl, C., & Schumacher,
S. (2025). PHOENIX – Paderborn highly optimized and energy efficient solver for
two-dimensional nonlinear Schrödinger equations with integrated extensions. Computer
Physics Communications, 315, Article 109689. https://doi.org/10.1016/j.cpc.2025.109689
bibtex: '@article{Wingenbach_Bauch_Ma_Schade_Plessl_Schumacher_2025, title={PHOENIX
– Paderborn highly optimized and energy efficient solver for two-dimensional nonlinear
Schrödinger equations with integrated extensions}, volume={315}, DOI={10.1016/j.cpc.2025.109689},
number={109689}, journal={Computer Physics Communications}, publisher={Elsevier
BV}, author={Wingenbach, Jan and Bauch, David and Ma, Xuekai and Schade, Robert
and Plessl, Christian and Schumacher, Stefan}, year={2025} }'
chicago: Wingenbach, Jan, David Bauch, Xuekai Ma, Robert Schade, Christian Plessl,
and Stefan Schumacher. “PHOENIX – Paderborn Highly Optimized and Energy Efficient
Solver for Two-Dimensional Nonlinear Schrödinger Equations with Integrated Extensions.”
Computer Physics Communications 315 (2025). https://doi.org/10.1016/j.cpc.2025.109689.
ieee: 'J. Wingenbach, D. Bauch, X. Ma, R. Schade, C. Plessl, and S. Schumacher,
“PHOENIX – Paderborn highly optimized and energy efficient solver for two-dimensional
nonlinear Schrödinger equations with integrated extensions,” Computer Physics
Communications, vol. 315, Art. no. 109689, 2025, doi: 10.1016/j.cpc.2025.109689.'
mla: Wingenbach, Jan, et al. “PHOENIX – Paderborn Highly Optimized and Energy Efficient
Solver for Two-Dimensional Nonlinear Schrödinger Equations with Integrated Extensions.”
Computer Physics Communications, vol. 315, 109689, Elsevier BV, 2025, doi:10.1016/j.cpc.2025.109689.
short: J. Wingenbach, D. Bauch, X. Ma, R. Schade, C. Plessl, S. Schumacher, Computer
Physics Communications 315 (2025).
date_created: 2025-06-23T07:38:52Z
date_updated: 2025-06-29T12:00:36Z
department:
- _id: '27'
doi: 10.1016/j.cpc.2025.109689
intvolume: ' 315'
language:
- iso: eng
project:
- _id: '52'
name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: Computer Physics Communications
publication_identifier:
issn:
- 0010-4655
publication_status: published
publisher: Elsevier BV
status: public
title: PHOENIX – Paderborn highly optimized and energy efficient solver for two-dimensional
nonlinear Schrödinger equations with integrated extensions
type: journal_article
user_id: '75963'
volume: 315
year: '2025'
...
---
_id: '60469'
abstract:
- lang: eng
text: Wissensmanagement ist im unternehmerischen Kontext ein etabliertes Feld der
Forschung und Praxis, das auf die Verbesserung von Effizienz und Wettbewerbsfähigkeit
abzielt. In den Organisationen der zivilen Gefahrenabwehr hingegen gibt es erhebliche
Defizite bei der Erfassung und Weitergabe von Wissen, obwohl auch hier große Abhängigkeiten
vom Erfahrungswissen bestehen. Diese Arbeit analysiert am Beispiel der Feuerwehr
die Gründe für diese Diskrepanz und entwickelt ein Konzept, das das Wissensmanagement
im Feuerwehrwesen nachhaltig verankern soll. Eine deutschlandweite Umfrage mit
577 Einsatzkräften ergab, dass eine digitale Verwaltungsunterstützung bereits
verbreitet ist, das Wissen jedoch vornehmlich per E-Mail, Chat, mündlich oder
per Aushang verteilt wird. Die Teilnehmenden wünschen sich eine Lösung für das
Wissensmanagement, die im Einsatz, bei Aus- und Weiterbildung sowie der Verwaltungsarbeit
unterstützt. Auf der Umfrage und einer systematischen Literaturrecherche aufbauend,
wurde der Handlungsbedarf identifiziert. Darauf basieren die Ableitung der Anwendungsbereiche
sowie Rahmenbedingungen, welche sich in den Anforderungen an ein Wissensmanagementsystem
widerspiegeln. Das Umsetzungskonzept beschreibt die Systemarchitektur der Lösung,
die auf einem open-source Wiki mit passenden Erweiterungen beruht. Zentrales Element
ist die Möglichkeit zum Austausch von Wissen über Organisationsgrenzen. Abgeschlossen
wird die Arbeit mit der Demonstration und Evaluation der Lösung.
- lang: eng
text: In the corporate context, knowledge management is an established field of
research and practice that aims to improve efficiency and competitiveness. In
civil emergency response organizations, on the other hand, there are considerable
deficits in the acquisition and transfer of knowledge, although there is great
dependence on empirical knowledge, too. This paper uses the example of the fire
department to analyze the reasons for this discrepancy and develops a concept
to anchor knowledge management in the fire department in the long term. A Germany-wide
survey of 577 firefighters revealed that digital administrative support is already
widespread, but that knowledge is primarily distributed by email, chat, verbally
or via paper. The participants seek for a knowledge management solution that provides
support during incients, training, as well as administrative work.Based on the
survey and a systematic literature review, the need for action was identified.
The areas of application and framework conditions, which are reflected in the
requirements for a knowledge management system, are based on this. The implementation
concept describes the system architecture of the solution, which is based on an
open-source wiki with suitable extensions. The central element is the ability
to share knowledge across organizational boundaries. The work concludes with a
demonstration and evaluation of the solution.
author:
- first_name: Andreas Maximilian
full_name: Schultz, Andreas Maximilian
id: '40599'
last_name: Schultz
citation:
ama: Schultz AM. Konzeptionierung eines digitalen Wissensmanagementsystems für
die zivile Gefahrenabwehr am Beispiel der Feuerwehr. LibreCat University;
2025. doi:10.17619/UNIPB/1-2315
apa: Schultz, A. M. (2025). Konzeptionierung eines digitalen Wissensmanagementsystems
für die zivile Gefahrenabwehr am Beispiel der Feuerwehr. LibreCat University.
https://doi.org/10.17619/UNIPB/1-2315
bibtex: '@book{Schultz_2025, title={Konzeptionierung eines digitalen Wissensmanagementsystems
für die zivile Gefahrenabwehr am Beispiel der Feuerwehr}, DOI={10.17619/UNIPB/1-2315},
publisher={LibreCat University}, author={Schultz, Andreas Maximilian}, year={2025}
}'
chicago: Schultz, Andreas Maximilian. Konzeptionierung eines digitalen Wissensmanagementsystems
für die zivile Gefahrenabwehr am Beispiel der Feuerwehr. LibreCat University,
2025. https://doi.org/10.17619/UNIPB/1-2315.
ieee: A. M. Schultz, Konzeptionierung eines digitalen Wissensmanagementsystems
für die zivile Gefahrenabwehr am Beispiel der Feuerwehr. LibreCat University,
2025.
mla: Schultz, Andreas Maximilian. Konzeptionierung eines digitalen Wissensmanagementsystems
für die zivile Gefahrenabwehr am Beispiel der Feuerwehr. LibreCat University,
2025, doi:10.17619/UNIPB/1-2315.
short: A.M. Schultz, Konzeptionierung eines digitalen Wissensmanagementsystems für
die zivile Gefahrenabwehr am Beispiel der Feuerwehr, LibreCat University, 2025.
date_created: 2025-06-30T09:11:38Z
date_updated: 2025-06-30T09:15:14Z
department:
- _id: '741'
doi: 10.17619/UNIPB/1-2315
language:
- iso: ger
main_file_link:
- open_access: '1'
oa: '1'
publication_status: epub_ahead
publisher: LibreCat University
status: public
supervisor:
- first_name: Iryna
full_name: Mozgova, Iryna
id: '95903'
last_name: Mozgova
- first_name: Roland
full_name: Lachmayer, Roland
last_name: Lachmayer
title: Konzeptionierung eines digitalen Wissensmanagementsystems für die zivile Gefahrenabwehr
am Beispiel der Feuerwehr
type: dissertation
user_id: '40599'
year: '2025'
...
---
_id: '60471'
author:
- first_name: N
full_name: Knoll-Pientka, N
last_name: Knoll-Pientka
- first_name: D
full_name: Schils, D
last_name: Schils
- first_name: K
full_name: Pasternak, K
last_name: Pasternak
- first_name: S
full_name: Czarnetzky, S
last_name: Czarnetzky
- first_name: C
full_name: Jansen, C
last_name: Jansen
- first_name: G
full_name: Gradl-Dietsch, G
last_name: Gradl-Dietsch
- first_name: J
full_name: Seitz, J
last_name: Seitz
- first_name: EM
full_name: Skoda, EM
last_name: Skoda
- first_name: Lars
full_name: Libuda, Lars
id: '88682'
last_name: Libuda
orcid: 0000-0003-1603-3133
- first_name: A
full_name: Schweda, A
last_name: Schweda
- first_name: M
full_name: Teufel, M
last_name: Teufel
citation:
ama: Knoll-Pientka N, Schils D, Pasternak K, et al. Can bioelectrical impedance
analysis be used to identify water loading in patients with anorexia nervosa?-
Implications from experimental measurements in young, healthy, and normal weight
women. J Eat Disord. 2025;13(1):87.
apa: Knoll-Pientka, N., Schils, D., Pasternak, K., Czarnetzky, S., Jansen, C., Gradl-Dietsch,
G., Seitz, J., Skoda, E., Libuda, L., Schweda, A., & Teufel, M. (2025). Can
bioelectrical impedance analysis be used to identify water loading in patients
with anorexia nervosa?- Implications from experimental measurements in young,
healthy, and normal weight women. J Eat Disord, 13(1), 87.
bibtex: '@article{Knoll-Pientka_Schils_Pasternak_Czarnetzky_Jansen_Gradl-Dietsch_Seitz_Skoda_Libuda_Schweda_et
al._2025, title={Can bioelectrical impedance analysis be used to identify water
loading in patients with anorexia nervosa?- Implications from experimental measurements
in young, healthy, and normal weight women.}, volume={13}, number={1}, journal={J
Eat Disord}, author={Knoll-Pientka, N and Schils, D and Pasternak, K and Czarnetzky,
S and Jansen, C and Gradl-Dietsch, G and Seitz, J and Skoda, EM and Libuda, Lars
and Schweda, A and et al.}, year={2025}, pages={87} }'
chicago: 'Knoll-Pientka, N, D Schils, K Pasternak, S Czarnetzky, C Jansen, G Gradl-Dietsch,
J Seitz, et al. “Can Bioelectrical Impedance Analysis Be Used to Identify Water
Loading in Patients with Anorexia Nervosa?- Implications from Experimental Measurements
in Young, Healthy, and Normal Weight Women.” J Eat Disord 13, no. 1 (2025):
87.'
ieee: N. Knoll-Pientka et al., “Can bioelectrical impedance analysis be used
to identify water loading in patients with anorexia nervosa?- Implications from
experimental measurements in young, healthy, and normal weight women.,” J Eat
Disord, vol. 13, no. 1, p. 87, 2025.
mla: Knoll-Pientka, N., et al. “Can Bioelectrical Impedance Analysis Be Used to
Identify Water Loading in Patients with Anorexia Nervosa?- Implications from Experimental
Measurements in Young, Healthy, and Normal Weight Women.” J Eat Disord,
vol. 13, no. 1, 2025, p. 87.
short: N. Knoll-Pientka, D. Schils, K. Pasternak, S. Czarnetzky, C. Jansen, G. Gradl-Dietsch,
J. Seitz, E. Skoda, L. Libuda, A. Schweda, M. Teufel, J Eat Disord 13 (2025) 87.
date_created: 2025-06-30T10:24:32Z
date_updated: 2025-06-30T10:26:06Z
department:
- _id: '35'
- _id: '17'
- _id: '22'
external_id:
pmid:
- '40390023'
intvolume: ' 13'
issue: '1'
language:
- iso: eng
page: '87'
pmid: '1'
publication: J Eat Disord
publication_identifier:
issn:
- 2050-2974
status: public
title: Can bioelectrical impedance analysis be used to identify water loading in patients
with anorexia nervosa?- Implications from experimental measurements in young, healthy,
and normal weight women.
type: journal_article
user_id: '88682'
volume: 13
year: '2025'
...
---
_id: '60474'
author:
- first_name: Fabian
full_name: Januszewski, Fabian
id: '81636'
last_name: Januszewski
orcid: 0000-0002-3184-237X
citation:
ama: Januszewski F. Rational structures on quivers and a generalization of Gelfand’s
equivalence. arXiv:250623251. Published online 2025.
apa: Januszewski, F. (2025). Rational structures on quivers and a generalization
of Gelfand’s equivalence. In arXiv:2506.23251.
bibtex: '@article{Januszewski_2025, title={Rational structures on quivers and a
generalization of Gelfand’s equivalence}, journal={arXiv:2506.23251}, author={Januszewski,
Fabian}, year={2025} }'
chicago: Januszewski, Fabian. “Rational Structures on Quivers and a Generalization
of Gelfand’s Equivalence.” ArXiv:2506.23251, 2025.
ieee: F. Januszewski, “Rational structures on quivers and a generalization of Gelfand’s
equivalence,” arXiv:2506.23251. 2025.
mla: Januszewski, Fabian. “Rational Structures on Quivers and a Generalization of
Gelfand’s Equivalence.” ArXiv:2506.23251, 2025.
short: F. Januszewski, ArXiv:2506.23251 (2025).
date_created: 2025-07-01T06:09:53Z
date_updated: 2025-07-01T06:10:03Z
language:
- iso: eng
page: '38'
publication: arXiv:2506.23251
related_material:
link:
- relation: confirmation
url: https://arxiv.org/abs/2506.23251
status: public
title: Rational structures on quivers and a generalization of Gelfand's equivalence
type: preprint
user_id: '81636'
year: '2025'
...
---
_id: '60496'
abstract:
- lang: eng
text: Hypertree decompositions provide a way to evaluate Conjunctive Queries
(CQs) in polynomial time, where the exponent of this polynomial is determined
by the width of the decomposition. In theory, the goal of efficient CQ evaluation
therefore has to be a minimisation of the width. However, in practical settings,
it turns out that there are also other properties of a decomposition that influence
the performance of query evaluation. It is therefore of interest to restrict the
computation of decompositions by constraints and to guide this computation by
preferences. To this end, we propose a novel framework based on candidate tree
decompositions, which allows us to introduce soft hypertree width (shw). This
width measure is a relaxation of hypertree width (hw); it is never greater than
hw and, in some cases, shw may actually be lower than hw. Most importantly, shw
preserves the tractability of deciding if a given CQ is below some fixed bound,
while offering more algorithmic flexibility. In particular, it provides a natural
way to incorporate preferences and constraints into the computation of decompositions.
A prototype implementation and preliminary experiments confirm that this novel
framework can indeed have a practical impact on query evaluation.
author:
- first_name: Matthias
full_name: Lanzinger, Matthias
last_name: Lanzinger
- first_name: Cem
full_name: Okulmus, Cem
id: '114410'
last_name: Okulmus
orcid: 0000-0002-7742-0439
- first_name: Reinhard
full_name: Pichler, Reinhard
last_name: Pichler
- first_name: Alexander
full_name: Selzer, Alexander
last_name: Selzer
- first_name: Georg
full_name: Gottlob, Georg
last_name: Gottlob
citation:
ama: Lanzinger M, Okulmus C, Pichler R, Selzer A, Gottlob G. Soft and Constrained
Hypertree Width. Proceedings of the ACM on Management of Data. 2025;3(2):1-25.
doi:10.1145/3725251
apa: Lanzinger, M., Okulmus, C., Pichler, R., Selzer, A., & Gottlob, G. (2025).
Soft and Constrained Hypertree Width. Proceedings of the ACM on Management
of Data, 3(2), 1–25. https://doi.org/10.1145/3725251
bibtex: '@article{Lanzinger_Okulmus_Pichler_Selzer_Gottlob_2025, title={Soft and
Constrained Hypertree Width}, volume={3}, DOI={10.1145/3725251},
number={2}, journal={Proceedings of the ACM on Management of Data}, publisher={Association
for Computing Machinery (ACM)}, author={Lanzinger, Matthias and Okulmus, Cem and
Pichler, Reinhard and Selzer, Alexander and Gottlob, Georg}, year={2025}, pages={1–25}
}'
chicago: 'Lanzinger, Matthias, Cem Okulmus, Reinhard Pichler, Alexander Selzer,
and Georg Gottlob. “Soft and Constrained Hypertree Width.” Proceedings of the
ACM on Management of Data 3, no. 2 (2025): 1–25. https://doi.org/10.1145/3725251.'
ieee: 'M. Lanzinger, C. Okulmus, R. Pichler, A. Selzer, and G. Gottlob, “Soft and
Constrained Hypertree Width,” Proceedings of the ACM on Management of Data,
vol. 3, no. 2, pp. 1–25, 2025, doi: 10.1145/3725251.'
mla: Lanzinger, Matthias, et al. “Soft and Constrained Hypertree Width.” Proceedings
of the ACM on Management of Data, vol. 3, no. 2, Association for Computing
Machinery (ACM), 2025, pp. 1–25, doi:10.1145/3725251.
short: M. Lanzinger, C. Okulmus, R. Pichler, A. Selzer, G. Gottlob, Proceedings
of the ACM on Management of Data 3 (2025) 1–25.
conference:
end_date: 2025-06-27
location: Berlin
name: 44th ACM Symposium on Principles of Database Systems (PODS) 2025
start_date: 2025-06-22
date_created: 2025-07-02T11:41:00Z
date_updated: 2025-07-02T11:45:18Z
department:
- _id: '888'
doi: 10.1145/3725251
intvolume: ' 3'
issue: '2'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/2412.11669
oa: '1'
page: 1-25
publication: Proceedings of the ACM on Management of Data
publication_identifier:
issn:
- 2836-6573
publication_status: published
publisher: Association for Computing Machinery (ACM)
status: public
title: Soft and Constrained Hypertree Width
type: journal_article
user_id: '114410'
volume: 3
year: '2025'
...