---
_id: '54432'
citation:
ama: Leineweber J, Seng E-M, eds. Immaterielles Kulturerbe und Regionale Identität.
Schützenwesen in Nordwestdeutschland. transcript; 2025.
apa: Leineweber, J., & Seng, E.-M. (Eds.). (2025). Immaterielles Kulturerbe
und Regionale Identität. Schützenwesen in Nordwestdeutschland. transcript.
bibtex: '@book{Leineweber_Seng_2025, place={Bielefeld}, title={Immaterielles Kulturerbe
und Regionale Identität. Schützenwesen in Nordwestdeutschland}, publisher={transcript},
year={2025} }'
chicago: 'Leineweber, Jonas, and Eva- Maria Seng, eds. Immaterielles Kulturerbe
und Regionale Identität. Schützenwesen in Nordwestdeutschland. Bielefeld:
transcript, 2025.'
ieee: 'J. Leineweber and E.-M. Seng, Eds., Immaterielles Kulturerbe und Regionale
Identität. Schützenwesen in Nordwestdeutschland. Bielefeld: transcript, 2025.'
mla: Leineweber, Jonas, and Eva-Maria Seng, editors. Immaterielles Kulturerbe
und Regionale Identität. Schützenwesen in Nordwestdeutschland. transcript,
2025.
short: J. Leineweber, E.-M. Seng, eds., Immaterielles Kulturerbe und Regionale Identität.
Schützenwesen in Nordwestdeutschland, transcript, Bielefeld, 2025.
date_created: 2024-05-23T09:30:55Z
date_updated: 2025-01-29T15:23:39Z
editor:
- first_name: Jonas
full_name: Leineweber, Jonas
id: '45701'
last_name: Leineweber
orcid: 0000-0001-8616-3051
- first_name: Eva- Maria
full_name: Seng, Eva- Maria
id: '499'
last_name: Seng
language:
- iso: ger
place: Bielefeld
project:
- _id: '869'
name: Tradition im Wandel – Das Schützenwesen in Westfalen als Immaterielles Kulturerbe
publication_identifier:
isbn:
- 978-3-8376-6126-2
publication_status: published
publisher: transcript
status: public
title: Immaterielles Kulturerbe und Regionale Identität. Schützenwesen in Nordwestdeutschland
type: book_editor
user_id: '45701'
year: '2025'
...
---
_id: '58495'
abstract:
- lang: eng
text: To reduce CO2 emissions, the industry, particularly
in the mobility sector, focuses on lightweight vehicles with multi-material structures.
As thermal joining processes are reaching their limits, mechanical techniques
such as self-piercing riveting are being used. One innovative solution is the
versatile self-piercing riveting process (V-SPR), which combines different material
combinations with a multi-range rivet. 1 The joining process
is divided into the piercing process and the forming process of the rivet head
to the respective sheet thickness. The rivet shaft requires sufficient strength
to punch through the punch-sided sheet, and sufficient ductility of the rivet
head is required to form onto the punch-sided sheet. To achieve a combination
of these requirements, local inductive heat treatment strategies are used for
the rivet. To ensure reproducible rivet hardening, a specialised device has been
developed for precise rivet positioning in the induction coil and the subsequent
quenching process. The heat treatment differs in terms of hardening times and
temperatures. In addition, the heat treatment is combined with a subsequent tempering
process. The study aims to determine the resulting hardness distributions and
microstructures of the rivet and to investigate the influence of different heat
treatment strategies on joint formation and load-bearing capacities. The results
show that a graded hardening profile has a positive effect on the spreading behaviour
of the rivet foot and the forming behaviour of the rivet head. Furthermore, the
load-bearing behaviour of the joints is increased.
author:
- first_name: Pia Katharina
full_name: Holtkamp, Pia Katharina
id: '44935'
last_name: Holtkamp
- first_name: Fabian
full_name: Kappe, Fabian
id: '66459'
last_name: Kappe
- first_name: Paula
full_name: Probst, Paula
last_name: Probst
- 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
citation:
ama: 'Holtkamp PK, Kappe F, Probst P, Bobbert M, Meschut G. Investigation of local
heat treatment strategies for a multi-range capable rivet and the influence on
joint formation and load-bearing capacity. Proceedings of the Institution of
Mechanical Engineers, Part L: Journal of Materials: Design and Applications.
Published online 2025. doi:10.1177/14644207241307508'
apa: 'Holtkamp, P. K., Kappe, F., Probst, P., Bobbert, M., & Meschut, G. (2025).
Investigation of local heat treatment strategies for a multi-range capable rivet
and the influence on joint formation and load-bearing capacity. Proceedings
of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design
and Applications. https://doi.org/10.1177/14644207241307508'
bibtex: '@article{Holtkamp_Kappe_Probst_Bobbert_Meschut_2025, title={Investigation
of local heat treatment strategies for a multi-range capable rivet and the influence
on joint formation and load-bearing capacity}, DOI={10.1177/14644207241307508},
journal={Proceedings of the Institution of Mechanical Engineers, Part L: Journal
of Materials: Design and Applications}, publisher={SAGE Publications}, author={Holtkamp,
Pia Katharina and Kappe, Fabian and Probst, Paula and Bobbert, Mathias and Meschut,
Gerson}, year={2025} }'
chicago: 'Holtkamp, Pia Katharina, Fabian Kappe, Paula Probst, Mathias Bobbert,
and Gerson Meschut. “Investigation of Local Heat Treatment Strategies for a Multi-Range
Capable Rivet and the Influence on Joint Formation and Load-Bearing Capacity.”
Proceedings of the Institution of Mechanical Engineers, Part L: Journal of
Materials: Design and Applications, 2025. https://doi.org/10.1177/14644207241307508.'
ieee: 'P. K. Holtkamp, F. Kappe, P. Probst, M. Bobbert, and G. Meschut, “Investigation
of local heat treatment strategies for a multi-range capable rivet and the influence
on joint formation and load-bearing capacity,” Proceedings of the Institution
of Mechanical Engineers, Part L: Journal of Materials: Design and Applications,
2025, doi: 10.1177/14644207241307508.'
mla: 'Holtkamp, Pia Katharina, et al. “Investigation of Local Heat Treatment Strategies
for a Multi-Range Capable Rivet and the Influence on Joint Formation and Load-Bearing
Capacity.” Proceedings of the Institution of Mechanical Engineers, Part L:
Journal of Materials: Design and Applications, SAGE Publications, 2025, doi:10.1177/14644207241307508.'
short: 'P.K. Holtkamp, F. Kappe, P. Probst, M. Bobbert, G. Meschut, Proceedings
of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design
and Applications (2025).'
date_created: 2025-02-03T09:26:32Z
date_updated: 2025-02-03T09:36:32Z
department:
- _id: '43'
- _id: '157'
doi: 10.1177/14644207241307508
language:
- iso: eng
project:
- _id: '133'
name: 'TRR 285 - C: TRR 285 - Project Area C'
- _id: '130'
grant_number: '418701707'
name: 'TRR 285: TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen
Prozessketten'
publication: 'Proceedings of the Institution of Mechanical Engineers, Part L: Journal
of Materials: Design and Applications'
publication_identifier:
issn:
- 1464-4207
- 2041-3076
publication_status: published
publisher: SAGE Publications
quality_controlled: '1'
status: public
title: Investigation of local heat treatment strategies for a multi-range capable
rivet and the influence on joint formation and load-bearing capacity
type: journal_article
user_id: '44935'
year: '2025'
...
---
_id: '58518'
author:
- first_name: Alexandra
full_name: Hartmann, Alexandra
id: '14608'
last_name: Hartmann
citation:
ama: 'Hartmann A. (Re)Polizicizing the Teen Genre: On the (Queer) Utopian Potentials
of Netflix’s Sex Education. In: Franke A, Küchler U, Luther K, eds. Political
Education and American Studies. Winter; 2025:213-218.'
apa: 'Hartmann, A. (2025). (Re)Polizicizing the Teen Genre: On the (Queer) Utopian
Potentials of Netflix’s Sex Education. In A. Franke, U. Küchler, & K. Luther
(Eds.), Political Education and American Studies (pp. 213–218). Winter.'
bibtex: '@inbook{Hartmann_2025, place={Heidelberg}, title={(Re)Polizicizing the
Teen Genre: On the (Queer) Utopian Potentials of Netflix’s Sex Education}, booktitle={Political
Education and American Studies}, publisher={Winter}, author={Hartmann, Alexandra},
editor={Franke, Astrid and Küchler, Uwe and Luther, Katharina}, year={2025},
pages={213–218} }'
chicago: 'Hartmann, Alexandra. “(Re)Polizicizing the Teen Genre: On the (Queer)
Utopian Potentials of Netflix’s Sex Education.” In Political Education and
American Studies, edited by Astrid Franke, Uwe Küchler, and Katharina Luther,
213–18. Heidelberg: Winter, 2025.'
ieee: 'A. Hartmann, “(Re)Polizicizing the Teen Genre: On the (Queer) Utopian Potentials
of Netflix’s Sex Education,” in Political Education and American Studies,
A. Franke, U. Küchler, and K. Luther, Eds. Heidelberg: Winter, 2025, pp. 213–218.'
mla: 'Hartmann, Alexandra. “(Re)Polizicizing the Teen Genre: On the (Queer) Utopian
Potentials of Netflix’s Sex Education.” Political Education and American Studies,
edited by Astrid Franke et al., Winter, 2025, pp. 213–18.'
short: 'A. Hartmann, in: A. Franke, U. Küchler, K. Luther (Eds.), Political Education
and American Studies, Winter, Heidelberg, 2025, pp. 213–218.'
date_created: 2025-02-05T09:07:22Z
date_updated: 2025-02-05T09:07:48Z
department:
- _id: '382'
editor:
- first_name: Astrid
full_name: Franke, Astrid
last_name: Franke
- first_name: 'Uwe '
full_name: 'Küchler, Uwe '
last_name: Küchler
- first_name: Katharina
full_name: Luther, Katharina
last_name: Luther
language:
- iso: eng
page: 213-218
place: Heidelberg
publication: Political Education and American Studies
publication_identifier:
isbn:
- 978-3-8253-9615-2
publisher: Winter
status: public
title: '(Re)Polizicizing the Teen Genre: On the (Queer) Utopian Potentials of Netflix''s
Sex Education'
type: book_chapter
user_id: '14608'
year: '2025'
...
---
_id: '58193'
abstract:
- lang: eng
text: Zinc tin oxide (ZTO) is investigated as a photoluminescent sensor for oxygen
(O2); chemisorbed oxygen quenches the luminescence intensity. At the same time,
ZTO is also studied as a resistive sensor; being an n‐type semiconductor, its
electrical conductance decreases by adsorption of oxygen. Both phenomena can be
exploited for quantitative O2 sensing. The respective sensor responses can be
described by the same modified Stern‐Volmer model that distinguishes between accessible
and non‐accessible luminescence centers or charge carriers, respectively. The
impact of the temperature is studied in the range from room temperature up to
150 °C.
article_type: original
author:
- first_name: Linda
full_name: Kothe, Linda
last_name: Kothe
- first_name: Josefin
full_name: Klippstein, Josefin
last_name: Klippstein
- first_name: Marvin
full_name: Kloß, Marvin
last_name: Kloß
- first_name: Marc
full_name: Wengenroth, Marc
last_name: Wengenroth
- first_name: Michael
full_name: Poeplau, Michael
last_name: Poeplau
- first_name: Stephan
full_name: Ester, Stephan
last_name: Ester
- first_name: Michael
full_name: Tiemann, Michael
id: '23547'
last_name: Tiemann
orcid: 0000-0003-1711-2722
citation:
ama: 'Kothe L, Klippstein J, Kloß M, et al. Oxygen‐dependent Photoluminescence and
Electrical Conductance of Zinc Tin Oxide (ZTO): A Modified Stern‐Volmer Description.
ChemPhysChem. 2025;26:e202400984. doi:10.1002/cphc.202400984'
apa: 'Kothe, L., Klippstein, J., Kloß, M., Wengenroth, M., Poeplau, M., Ester, S.,
& Tiemann, M. (2025). Oxygen‐dependent Photoluminescence and Electrical Conductance
of Zinc Tin Oxide (ZTO): A Modified Stern‐Volmer Description. ChemPhysChem,
26, e202400984. https://doi.org/10.1002/cphc.202400984'
bibtex: '@article{Kothe_Klippstein_Kloß_Wengenroth_Poeplau_Ester_Tiemann_2025, title={Oxygen‐dependent
Photoluminescence and Electrical Conductance of Zinc Tin Oxide (ZTO): A Modified
Stern‐Volmer Description}, volume={26}, DOI={10.1002/cphc.202400984},
journal={ChemPhysChem}, publisher={Wiley}, author={Kothe, Linda and Klippstein,
Josefin and Kloß, Marvin and Wengenroth, Marc and Poeplau, Michael and Ester,
Stephan and Tiemann, Michael}, year={2025}, pages={e202400984} }'
chicago: 'Kothe, Linda, Josefin Klippstein, Marvin Kloß, Marc Wengenroth, Michael
Poeplau, Stephan Ester, and Michael Tiemann. “Oxygen‐dependent Photoluminescence
and Electrical Conductance of Zinc Tin Oxide (ZTO): A Modified Stern‐Volmer Description.”
ChemPhysChem 26 (2025): e202400984. https://doi.org/10.1002/cphc.202400984.'
ieee: 'L. Kothe et al., “Oxygen‐dependent Photoluminescence and Electrical
Conductance of Zinc Tin Oxide (ZTO): A Modified Stern‐Volmer Description,” ChemPhysChem,
vol. 26, p. e202400984, 2025, doi: 10.1002/cphc.202400984.'
mla: 'Kothe, Linda, et al. “Oxygen‐dependent Photoluminescence and Electrical Conductance
of Zinc Tin Oxide (ZTO): A Modified Stern‐Volmer Description.” ChemPhysChem,
vol. 26, Wiley, 2025, p. e202400984, doi:10.1002/cphc.202400984.'
short: L. Kothe, J. Klippstein, M. Kloß, M. Wengenroth, M. Poeplau, S. Ester, M.
Tiemann, ChemPhysChem 26 (2025) e202400984.
date_created: 2025-01-15T14:12:34Z
date_updated: 2025-04-04T06:20:07Z
department:
- _id: '35'
- _id: '2'
- _id: '307'
doi: 10.1002/cphc.202400984
intvolume: ' 26'
language:
- iso: eng
main_file_link:
- open_access: '1'
oa: '1'
page: e202400984
publication: ChemPhysChem
publication_identifier:
issn:
- 1439-4235
- 1439-7641
publication_status: published
publisher: Wiley
quality_controlled: '1'
status: public
title: 'Oxygen‐dependent Photoluminescence and Electrical Conductance of Zinc Tin
Oxide (ZTO): A Modified Stern‐Volmer Description'
type: journal_article
user_id: '23547'
volume: 26
year: '2025'
...
---
_id: '59344'
abstract:
- lang: eng
text: "Abstract\r\n For a finite graph,
we establish natural isomorphisms between eigenspaces of a Laplace operator acting
on functions on the edges and eigenspaces of a transfer operator acting on functions
on one-sided infinite non-backtracking paths. Interpreting the transfer operator
as a classical dynamical system and the Laplace operator as its quantization,
this result can be viewed as a quantum-classical correspondence.
In contrast to previously established quantum-classical correspondences for the
vertex Laplacian which exclude certain exceptional spectral parameters, our correspondence
is valid for all parameters. This allows us to relate certain spectral quantities
to topological properties of the graph such as the cyclomatic number and the 2-colorability.
The quantum-classical correspondence for the edge Laplacian is induced by an edge
Poisson transform on the universal covering of the graph which is a tree of bounded
degree. In the special case of regular trees, we relate both the vertex and the
edge Poisson transform to the representation theory of the automorphism group
of the tree and study associated operator valued Hecke algebras."
author:
- first_name: Christian
full_name: Arends, Christian
last_name: Arends
- first_name: Jan
full_name: Frahm, Jan
last_name: Frahm
- first_name: Joachim
full_name: Hilgert, Joachim
id: '220'
last_name: Hilgert
citation:
ama: Arends C, Frahm J, Hilgert J. Edge Laplacians and Edge Poisson Transforms for
Graphs. Potential Analysis. Published online 2025. doi:10.1007/s11118-024-10184-y
apa: Arends, C., Frahm, J., & Hilgert, J. (2025). Edge Laplacians and Edge Poisson
Transforms for Graphs. Potential Analysis. https://doi.org/10.1007/s11118-024-10184-y
bibtex: '@article{Arends_Frahm_Hilgert_2025, title={Edge Laplacians and Edge Poisson
Transforms for Graphs}, DOI={10.1007/s11118-024-10184-y},
journal={Potential Analysis}, publisher={Springer Science and Business Media LLC},
author={Arends, Christian and Frahm, Jan and Hilgert, Joachim}, year={2025} }'
chicago: Arends, Christian, Jan Frahm, and Joachim Hilgert. “Edge Laplacians and
Edge Poisson Transforms for Graphs.” Potential Analysis, 2025. https://doi.org/10.1007/s11118-024-10184-y.
ieee: 'C. Arends, J. Frahm, and J. Hilgert, “Edge Laplacians and Edge Poisson Transforms
for Graphs,” Potential Analysis, 2025, doi: 10.1007/s11118-024-10184-y.'
mla: Arends, Christian, et al. “Edge Laplacians and Edge Poisson Transforms for
Graphs.” Potential Analysis, Springer Science and Business Media LLC, 2025,
doi:10.1007/s11118-024-10184-y.
short: C. Arends, J. Frahm, J. Hilgert, Potential Analysis (2025).
date_created: 2025-04-04T08:02:14Z
date_updated: 2025-04-04T08:02:34Z
doi: 10.1007/s11118-024-10184-y
language:
- iso: eng
publication: Potential Analysis
publication_identifier:
issn:
- 0926-2601
- 1572-929X
publication_status: published
publisher: Springer Science and Business Media LLC
status: public
title: Edge Laplacians and Edge Poisson Transforms for Graphs
type: journal_article
user_id: '220'
year: '2025'
...
---
_id: '59421'
author:
- first_name: Johannes
full_name: Parikka, Johannes
last_name: Parikka
- first_name: Bhanu Kiran
full_name: Pothineni, Bhanu Kiran
last_name: Pothineni
- first_name: Heini
full_name: Järvinen, Heini
last_name: Järvinen
- first_name: Kosti
full_name: Tapio, Kosti
last_name: Tapio
- first_name: Adrian
full_name: Keller, Adrian
id: '48864'
last_name: Keller
orcid: 0000-0001-7139-3110
- first_name: J. Jussi
full_name: Toppari, J. Jussi
last_name: Toppari
citation:
ama: 'Parikka J, Pothineni BK, Järvinen H, Tapio K, Keller A, Toppari JJ. Surface-Assisted
Assembly of DNA Origami Lattices on Silicon Wafers. In: Methods in Molecular
Biology. Springer US; 2025. doi:10.1007/978-1-0716-4394-5_7'
apa: Parikka, J., Pothineni, B. K., Järvinen, H., Tapio, K., Keller, A., & Toppari,
J. J. (2025). Surface-Assisted Assembly of DNA Origami Lattices on Silicon Wafers.
In Methods in Molecular Biology. Springer US. https://doi.org/10.1007/978-1-0716-4394-5_7
bibtex: '@inbook{Parikka_Pothineni_Järvinen_Tapio_Keller_Toppari_2025, place={New
York, NY}, title={Surface-Assisted Assembly of DNA Origami Lattices on Silicon
Wafers}, DOI={10.1007/978-1-0716-4394-5_7},
booktitle={Methods in Molecular Biology}, publisher={Springer US}, author={Parikka,
Johannes and Pothineni, Bhanu Kiran and Järvinen, Heini and Tapio, Kosti and Keller,
Adrian and Toppari, J. Jussi}, year={2025} }'
chicago: 'Parikka, Johannes, Bhanu Kiran Pothineni, Heini Järvinen, Kosti Tapio,
Adrian Keller, and J. Jussi Toppari. “Surface-Assisted Assembly of DNA Origami
Lattices on Silicon Wafers.” In Methods in Molecular Biology. New York,
NY: Springer US, 2025. https://doi.org/10.1007/978-1-0716-4394-5_7.'
ieee: 'J. Parikka, B. K. Pothineni, H. Järvinen, K. Tapio, A. Keller, and J. J.
Toppari, “Surface-Assisted Assembly of DNA Origami Lattices on Silicon Wafers,”
in Methods in Molecular Biology, New York, NY: Springer US, 2025.'
mla: Parikka, Johannes, et al. “Surface-Assisted Assembly of DNA Origami Lattices
on Silicon Wafers.” Methods in Molecular Biology, Springer US, 2025, doi:10.1007/978-1-0716-4394-5_7.
short: 'J. Parikka, B.K. Pothineni, H. Järvinen, K. Tapio, A. Keller, J.J. Toppari,
in: Methods in Molecular Biology, Springer US, New York, NY, 2025.'
date_created: 2025-04-08T09:06:14Z
date_updated: 2025-04-08T09:06:34Z
department:
- _id: '302'
doi: 10.1007/978-1-0716-4394-5_7
language:
- iso: eng
place: New York, NY
publication: Methods in Molecular Biology
publication_identifier:
isbn:
- '9781071643938'
- '9781071643945'
issn:
- 1064-3745
- 1940-6029
publication_status: published
publisher: Springer US
status: public
title: Surface-Assisted Assembly of DNA Origami Lattices on Silicon Wafers
type: book_chapter
user_id: '48864'
year: '2025'
...
---
_id: '59510'
abstract:
- lang: eng
text: The use of organo-catalysis in continuous-flow reactor systems is
gaining attention in medicinal chemistry due to its cost-effectiveness and reduced
chemical waste. In this study, bioactive curcumin (CUM) derivatives were synthesized
in a continuously operated microfluidic reactor (MFR), using piperidine-based
polymeric networks as catalysts. Piperidine methacrylate and piperidine acrylate
were synthesized and subsequently copolymerized with complementary monomers (MMA
or DMAA) and crosslinkers (EGDMA or MBAM) via photopolymerization, yielding different
polymeric networks. Initially, batch reactions were optimized for the organo-catalytic
Knoevenagel condensation between CUM and 4-nitrobenzaldehyde, under various conditions,
in the presence of polymer networks. Conversion was assessed using offline 1H
NMR spectroscopy, revealing an increase in conversion with enhanced swelling properties
of the polymer networks, which facilitated greater accessibility of catalytic
sites. In continuous-flow MFR experiments, optimized polymer gel dots exhibited
superior catalytic performance, achieving a conversion of up to 72%, compared
to other compositions. This improvement was attributed to the enhanced swelling
in the reaction mixture (DMSO/methanol, 7:3 v/v) at 40 °C over 72 h. Furthermore,
the MFR system enabled the efficient synthesis of a series of CUM derivatives,
demonstrating significantly higher conversion rates than traditional batch reactions.
Notably, while batch reactions required 90% catalyst loading in the gel, the MFR
system achieved a comparable or superior performance with only 50% catalyst, resulting
in a higher turnover number. These findings underscore the advantages of continuous-flow
organo-catalysis in enhancing catalytic efficiency and sustainability in organic
synthesis.
article_number: '278'
author:
- first_name: Naresh
full_name: Killi, Naresh
last_name: Killi
- first_name: Katja
full_name: Rumpke, Katja
last_name: Rumpke
- first_name: Dirk
full_name: Kuckling, Dirk
id: '287'
last_name: Kuckling
citation:
ama: Killi N, Rumpke K, Kuckling D. Synthesis of Curcumin Derivatives via Knoevenagel
Reaction Within a Continuously Driven Microfluidic Reactor Using Polymeric Networks
Containing Piperidine as a Catalyst. Gels. 2025;11(4). doi:10.3390/gels11040278
apa: Killi, N., Rumpke, K., & Kuckling, D. (2025). Synthesis of Curcumin Derivatives
via Knoevenagel Reaction Within a Continuously Driven Microfluidic Reactor Using
Polymeric Networks Containing Piperidine as a Catalyst. Gels, 11(4),
Article 278. https://doi.org/10.3390/gels11040278
bibtex: '@article{Killi_Rumpke_Kuckling_2025, title={Synthesis of Curcumin Derivatives
via Knoevenagel Reaction Within a Continuously Driven Microfluidic Reactor Using
Polymeric Networks Containing Piperidine as a Catalyst}, volume={11}, DOI={10.3390/gels11040278}, number={4278},
journal={Gels}, publisher={MDPI AG}, author={Killi, Naresh and Rumpke, Katja and
Kuckling, Dirk}, year={2025} }'
chicago: Killi, Naresh, Katja Rumpke, and Dirk Kuckling. “Synthesis of Curcumin
Derivatives via Knoevenagel Reaction Within a Continuously Driven Microfluidic
Reactor Using Polymeric Networks Containing Piperidine as a Catalyst.” Gels
11, no. 4 (2025). https://doi.org/10.3390/gels11040278.
ieee: 'N. Killi, K. Rumpke, and D. Kuckling, “Synthesis of Curcumin Derivatives
via Knoevenagel Reaction Within a Continuously Driven Microfluidic Reactor Using
Polymeric Networks Containing Piperidine as a Catalyst,” Gels, vol. 11,
no. 4, Art. no. 278, 2025, doi: 10.3390/gels11040278.'
mla: Killi, Naresh, et al. “Synthesis of Curcumin Derivatives via Knoevenagel Reaction
Within a Continuously Driven Microfluidic Reactor Using Polymeric Networks Containing
Piperidine as a Catalyst.” Gels, vol. 11, no. 4, 278, MDPI AG, 2025, doi:10.3390/gels11040278.
short: N. Killi, K. Rumpke, D. Kuckling, Gels 11 (2025).
date_created: 2025-04-11T07:12:02Z
date_updated: 2025-04-11T07:13:26Z
department:
- _id: '163'
doi: 10.3390/gels11040278
intvolume: ' 11'
issue: '4'
keyword:
- flow chemistry
- heterogeneous catalysis
- sustainable synthesis
- organo-catalysis
- polymeric gel dots
language:
- iso: eng
main_file_link:
- url: https://www.mdpi.com/2310-2861/11/4/278
publication: Gels
publication_identifier:
issn:
- 2310-2861
publication_status: published
publisher: MDPI AG
status: public
title: Synthesis of Curcumin Derivatives via Knoevenagel Reaction Within a Continuously
Driven Microfluidic Reactor Using Polymeric Networks Containing Piperidine as a
Catalyst
type: journal_article
user_id: '94'
volume: 11
year: '2025'
...
---
_id: '59511'
abstract:
- lang: eng
text: AbstractTo minimize or avoid the use of antibiotics,
antimicrobial polymers have emerged as a promising option to fight biomaterial‐associated
infections, e.g., on titanium‐based implants. However, the challenge is to develop
active polymers that exhibit an antimicrobial effect and are compatible with human
cells. Different studies aiming for biocidal polymers active in soluble mode,
focused on the ratio of cationic to hydrophobic groups, while only marginal knowledge
is available for immobilized components. Here a strong hydrophilic electrolyte
4‐vinylbenzyltrimethylammonium chloride (TMA) is chosen as the cationic component.
The block composition of the polycationic segment is modified with styrene (Sty)
regarding the amphiphilic balance. To adsorb such polymers onto titanium surfaces
they are equipped with a polyphosphonic acid anchor block by sequential reversible‐addition‐fragmentation
chain‐transfer polymerization (RAFT) polymerization. The polymer composition affected
the wetting behavior of adsorbed coatings with water contact angles ranging from
17° to 72°, while zetapotential measurements confirmed high extent of positive
charges for all adsorbed polymer coatings. The fundamentally modified block composition
resulted in significantly improved cytocompatibility. Antimicrobial efficacy in
early bacterial adhesion is still retained from slightly antiadhesive coatings
to combined antiadhesive/biocidal activity depending on Sty/TMA ratio in random
polymers while a block copolymer revealed lowest antimicrobial effect.
author:
- first_name: Cornelia
full_name: Wolf‐Brandstetter, Cornelia
last_name: Wolf‐Brandstetter
- first_name: Rafael
full_name: Methling, Rafael
last_name: Methling
- first_name: Dirk
full_name: Kuckling, Dirk
id: '287'
last_name: Kuckling
citation:
ama: Wolf‐Brandstetter C, Methling R, Kuckling D. Adsorbable and Antimicrobial Amphiphilic
Block Copolymers with Enhanced Biocompatibility. Macromolecular Materials and
Engineering. Published online 2025. doi:10.1002/mame.202500078
apa: Wolf‐Brandstetter, C., Methling, R., & Kuckling, D. (2025). Adsorbable
and Antimicrobial Amphiphilic Block Copolymers with Enhanced Biocompatibility.
Macromolecular Materials and Engineering. https://doi.org/10.1002/mame.202500078
bibtex: '@article{Wolf‐Brandstetter_Methling_Kuckling_2025, title={Adsorbable and
Antimicrobial Amphiphilic Block Copolymers with Enhanced Biocompatibility}, DOI={10.1002/mame.202500078}, journal={Macromolecular
Materials and Engineering}, publisher={Wiley}, author={Wolf‐Brandstetter, Cornelia
and Methling, Rafael and Kuckling, Dirk}, year={2025} }'
chicago: Wolf‐Brandstetter, Cornelia, Rafael Methling, and Dirk Kuckling. “Adsorbable
and Antimicrobial Amphiphilic Block Copolymers with Enhanced Biocompatibility.”
Macromolecular Materials and Engineering, 2025. https://doi.org/10.1002/mame.202500078.
ieee: 'C. Wolf‐Brandstetter, R. Methling, and D. Kuckling, “Adsorbable and Antimicrobial
Amphiphilic Block Copolymers with Enhanced Biocompatibility,” Macromolecular
Materials and Engineering, 2025, doi: 10.1002/mame.202500078.'
mla: Wolf‐Brandstetter, Cornelia, et al. “Adsorbable and Antimicrobial Amphiphilic
Block Copolymers with Enhanced Biocompatibility.” Macromolecular Materials
and Engineering, Wiley, 2025, doi:10.1002/mame.202500078.
short: C. Wolf‐Brandstetter, R. Methling, D. Kuckling, Macromolecular Materials
and Engineering (2025).
date_created: 2025-04-11T07:35:39Z
date_updated: 2025-04-11T07:43:06Z
department:
- _id: '163'
doi: 10.1002/mame.202500078
keyword:
- antiadhesive surfaces
- antimicrobial polymers
- grafting to
- polymerbrushes
language:
- iso: eng
main_file_link:
- url: https://onlinelibrary.wiley.com/doi/epdf/10.1002/mame.202500078
publication: Macromolecular Materials and Engineering
publication_identifier:
issn:
- 1438-7492
- 1439-2054
publication_status: published
publisher: Wiley
status: public
title: Adsorbable and Antimicrobial Amphiphilic Block Copolymers with Enhanced Biocompatibility
type: journal_article
user_id: '94'
year: '2025'
...
---
_id: '59608'
abstract:
- lang: ger
text: Das Fachdidaktische Wissen (FDW) zählt zu den zentralen Elementen des Professionswissens
(angehender) Lehrkräfte und seine Relevanz ist sowohl theoretisch angenommen als
auch empirisch belegt. In der fachdidaktischen Forschung liegt daher bereits seit
längerem ein Fokus auf der Analyse des FDW, wobei mittlerweile vor allem Auswirkungen
auf die Handlungsqualität und auf Lernergebnisse in den Blick genommen werden.
Nach wie vor stellt aber auch die empirisch fundierte inhaltliche Beschreibung
des FDW sowie der Transfer entwickelter FDW-Testverfahren auf Basis von Testinstrumenten
mit offenem Antwortformat in die Ausbildungspraxis ein Forschungsdesiderat dar.
In diesem Dissertationsprojekt werden daher auf Basis eines Datensatzes von 846
Bearbeitungen eines FDW-Testinstruments im Fach Physik (1) projektübergreifende
FDW-Kompetenzniveaus auf Basis von Item-Response-Modellierungen exploriert, (2)
nicht-hierarchische FDW-Kompetenzprofile auf Basis von (probabilistischen) Cluster-
und Textanalysen beschrieben und (3) ein vollständig automatisiertes FDW-Assessment-System
auf Basis von Machine Learning entwickelt. Dabei wurden insbesondere kognitive
Anforderungskategorien als Subskalen des verwendeten Testinstruments betrachtet.
Das Assessment-System wurde dabei auf Basis dieser und weiterer Subskalen sowie
anhand der Zuordnung von Proband:innen zu den Kompetenzprofilen evaluiert und
zeigte sowohl relativ zur Interrater-Übereinstimmung als auch absolut betrachtet
hohe Performanzwerte.
- lang: eng
text: Pedagogical Content Knowledge (PCK) is one of the central elements of the
professional knowledge of (prospective) teachers. Its relevance is theoretically
established and empirically shown multiple times. PCK has therefore been analyzed
continuously in education research, currently with a particular emphasis on its
impact on the quality of teaching and directly on learning outcomes. However,
there is still a lack of detailed empirically backed descriptions of the intricacies
of PCK and of methodologies for translating developed PCK assessment procedures
based on open-ended questionnaires into educational practice. In this dissertation
project, therefore, three objectives are pursued, based on a dataset of 846 responses
to a physics PCK test instrument. First, cross-project PCK competency levels are
explored based on item response modeling. Second, non-hierarchical PCK competency
profiles are described based on (probabilistic) cluster and text analyses. Third,
a fully automated FDW assessment system based on Machine Learning is developed.
In particular, cognitive requirement categories were considered as subscales of
the test instrument used. The assessment system was evaluated based on these and
other subscales, as well as the assignment of respondents to the competency profiles,
and demonstrated high performance values both in relation to inter-rater agreement
and in absolute terms.
author:
- first_name: Jannis
full_name: Zeller, Jannis
id: '99022'
last_name: Zeller
orcid: 0000-0002-1834-5520
citation:
ama: Zeller J. Strukturanalysen des physikdidaktischen Wissens mithilfe von Machine
Learning. Universität Paderborn; 2025. doi:10.17619/UNIPB/1-2238
apa: Zeller, J. (2025). Strukturanalysen des physikdidaktischen Wissens mithilfe
von Machine Learning. Universität Paderborn. https://doi.org/10.17619/UNIPB/1-2238
bibtex: '@book{Zeller_2025, title={Strukturanalysen des physikdidaktischen Wissens
mithilfe von Machine Learning}, DOI={10.17619/UNIPB/1-2238},
publisher={Universität Paderborn}, author={Zeller, Jannis}, year={2025} }'
chicago: Zeller, Jannis. Strukturanalysen des physikdidaktischen Wissens mithilfe
von Machine Learning. Universität Paderborn, 2025. https://doi.org/10.17619/UNIPB/1-2238.
ieee: J. Zeller, Strukturanalysen des physikdidaktischen Wissens mithilfe von
Machine Learning. Universität Paderborn, 2025.
mla: Zeller, Jannis. Strukturanalysen des physikdidaktischen Wissens mithilfe
von Machine Learning. Universität Paderborn, 2025, doi:10.17619/UNIPB/1-2238.
short: J. Zeller, Strukturanalysen des physikdidaktischen Wissens mithilfe von Machine
Learning, Universität Paderborn, 2025.
date_created: 2025-04-16T14:01:48Z
date_updated: 2025-04-16T14:03:41Z
department:
- _id: '299'
doi: 10.17619/UNIPB/1-2238
language:
- iso: ger
- iso: eng
publication_status: published
publisher: Universität Paderborn
status: public
title: Strukturanalysen des physikdidaktischen Wissens mithilfe von Machine Learning
type: dissertation
user_id: '99022'
year: '2025'
...
---
_id: '59805'
abstract:
- lang: eng
text: The LLC converter achieves the highest efficiency in resonant operation. Conventionally,
the input DC-link voltage is controlled to operate the LLC converter at resonance
for the given operating point. However, the DC-link capacitor voltage shows a
low-frequency voltage ripple (typically the second harmonic of grid frequency)
in cascaded converters so that the LLC has to adapt its switching frequency within
the grid period. Conventionally, the LLC converter operates 50% of the time above
the resonant frequency of 40 kHz and 50% below resonance. Both operating conditions
cause additional losses. However, experimental measurements indicate that the
below-resonance operation causes significantly higher losses than above-resonance
operation due to much higher primary and secondary transformer currents. It is
better to increase the DC-link voltage by 30% of the peak-to-peak low-frequency
voltage ripple to mostly avoid below-resonance operation (i.e., from 650 V to
680 V in this case). With the proposed control, the LLC converter operates about
75% of time over resonance and only 25% of time below resonance. The overall efficiency
increases from 97.66% to 97.7% for the average operating point with an 80% load
current. This corresponds to a 2% total loss reduction. Finally, the peak resonance
capacitor voltage decreases from 910 V to 790 V (−13%).
article_number: '1517'
author:
- first_name: Roland
full_name: Unruh, Roland
id: '34289'
last_name: Unruh
- first_name: Joachim
full_name: Böcker, Joachim
id: '66'
last_name: Böcker
orcid: 0000-0002-8480-7295
- first_name: Frank
full_name: Schafmeister, Frank
id: '71291'
last_name: Schafmeister
citation:
ama: Unruh R, Böcker J, Schafmeister F. Adaptive DC-Link Voltage Control for 22
kW, 40 kHz LLC Resonant Converter Considering Low-Frequency Voltage Ripple. Electronics.
2025;14(8). doi:10.3390/electronics14081517
apa: Unruh, R., Böcker, J., & Schafmeister, F. (2025). Adaptive DC-Link Voltage
Control for 22 kW, 40 kHz LLC Resonant Converter Considering Low-Frequency Voltage
Ripple. Electronics, 14(8), Article 1517. https://doi.org/10.3390/electronics14081517
bibtex: '@article{Unruh_Böcker_Schafmeister_2025, title={Adaptive DC-Link Voltage
Control for 22 kW, 40 kHz LLC Resonant Converter Considering Low-Frequency Voltage
Ripple}, volume={14}, DOI={10.3390/electronics14081517},
number={81517}, journal={Electronics}, publisher={MDPI AG}, author={Unruh, Roland
and Böcker, Joachim and Schafmeister, Frank}, year={2025} }'
chicago: Unruh, Roland, Joachim Böcker, and Frank Schafmeister. “Adaptive DC-Link
Voltage Control for 22 KW, 40 KHz LLC Resonant Converter Considering Low-Frequency
Voltage Ripple.” Electronics 14, no. 8 (2025). https://doi.org/10.3390/electronics14081517.
ieee: 'R. Unruh, J. Böcker, and F. Schafmeister, “Adaptive DC-Link Voltage Control
for 22 kW, 40 kHz LLC Resonant Converter Considering Low-Frequency Voltage Ripple,”
Electronics, vol. 14, no. 8, Art. no. 1517, 2025, doi: 10.3390/electronics14081517.'
mla: Unruh, Roland, et al. “Adaptive DC-Link Voltage Control for 22 KW, 40 KHz LLC
Resonant Converter Considering Low-Frequency Voltage Ripple.” Electronics,
vol. 14, no. 8, 1517, MDPI AG, 2025, doi:10.3390/electronics14081517.
short: R. Unruh, J. Böcker, F. Schafmeister, Electronics 14 (2025).
date_created: 2025-05-05T12:27:39Z
date_updated: 2025-05-05T12:34:00Z
department:
- _id: '52'
doi: 10.3390/electronics14081517
intvolume: ' 14'
issue: '8'
keyword:
- adaptive DC-link voltage
- cascaded H-bridge
- resonant operation
- Full-Bridge Converter
- loss minimization
- LLC Resonant Converter
- peak capacitor voltage reduction
language:
- iso: eng
main_file_link:
- url: https://www.mdpi.com/2079-9292/14/8/1517
publication: Electronics
publication_identifier:
issn:
- 2079-9292
publication_status: published
publisher: MDPI AG
status: public
title: Adaptive DC-Link Voltage Control for 22 kW, 40 kHz LLC Resonant Converter Considering
Low-Frequency Voltage Ripple
type: journal_article
user_id: '34289'
volume: 14
year: '2025'
...
---
_id: '59847'
abstract:
- lang: eng
text: "Abstract\r\n The surface-assisted
assembly of DNA origami lattices is a potent method for creating molecular lithography
masks. Lattice quality and assembly kinetics are controlled by various environmental
parameters, including the employed surface, the assembly temperature, and the
ionic composition of the buffer, with optimized parameter combinations resulting
in highly ordered lattices that can span surface areas of several cm2.
Established assembly protocols, however, employ assembly times ranging from hours
to days. Here, the assembly of highly ordered hexagonal DNA origami lattices at
mica surfaces is observed within few minutes using high-speed atomic force microscopy
(HS-AFM). A moderate increase in the DNA origami concentration enables this rapid
assembly. While forming a regular lattice takes 10 min at a DNA origami concentration
of 4 nM, this time is shortened to about 2 min at a concentration of 6 nM. Increasing
the DNA origami concentration any further does not result in shorter assembly
times, presumably because DNA origami arrival at the mica surface is diffusion-limited.
Over short length scales up to 1 µm, lattice order is independent of the DNA origami
concentration. However, at larger length scales of a few microns, a DNA origami
concentration of 10 nM yields slightly better order than lower and higher concentrations.
Therefore, 10 nM can be considered the optimum concentration for the rapid assembly
of highly ordered DNA origami lattices. These results thus represent an important
step toward the industrial-scale application of DNA origami-based lithography
masks."
article_number: '77'
author:
- first_name: Bhanu Kiran
full_name: Pothineni, Bhanu Kiran
last_name: Pothineni
- first_name: Jörg
full_name: Barner, Jörg
last_name: Barner
- first_name: Guido
full_name: Grundmeier, Guido
id: '194'
last_name: Grundmeier
- first_name: David
full_name: Contreras, David
last_name: Contreras
- first_name: Mario
full_name: Castro, Mario
last_name: Castro
- first_name: Adrian
full_name: Keller, Adrian
id: '48864'
last_name: Keller
orcid: 0000-0001-7139-3110
citation:
ama: Pothineni BK, Barner J, Grundmeier G, Contreras D, Castro M, Keller A. Rapid
assembly of highly ordered DNA origami lattices at mica surfaces. Discover
Nano. 2025;20(1). doi:10.1186/s11671-025-04254-2
apa: Pothineni, B. K., Barner, J., Grundmeier, G., Contreras, D., Castro, M., &
Keller, A. (2025). Rapid assembly of highly ordered DNA origami lattices at mica
surfaces. Discover Nano, 20(1), Article 77. https://doi.org/10.1186/s11671-025-04254-2
bibtex: '@article{Pothineni_Barner_Grundmeier_Contreras_Castro_Keller_2025, title={Rapid
assembly of highly ordered DNA origami lattices at mica surfaces}, volume={20},
DOI={10.1186/s11671-025-04254-2},
number={177}, journal={Discover Nano}, publisher={Springer Science and Business
Media LLC}, author={Pothineni, Bhanu Kiran and Barner, Jörg and Grundmeier, Guido
and Contreras, David and Castro, Mario and Keller, Adrian}, year={2025} }'
chicago: Pothineni, Bhanu Kiran, Jörg Barner, Guido Grundmeier, David Contreras,
Mario Castro, and Adrian Keller. “Rapid Assembly of Highly Ordered DNA Origami
Lattices at Mica Surfaces.” Discover Nano 20, no. 1 (2025). https://doi.org/10.1186/s11671-025-04254-2.
ieee: 'B. K. Pothineni, J. Barner, G. Grundmeier, D. Contreras, M. Castro, and A.
Keller, “Rapid assembly of highly ordered DNA origami lattices at mica surfaces,”
Discover Nano, vol. 20, no. 1, Art. no. 77, 2025, doi: 10.1186/s11671-025-04254-2.'
mla: Pothineni, Bhanu Kiran, et al. “Rapid Assembly of Highly Ordered DNA Origami
Lattices at Mica Surfaces.” Discover Nano, vol. 20, no. 1, 77, Springer
Science and Business Media LLC, 2025, doi:10.1186/s11671-025-04254-2.
short: B.K. Pothineni, J. Barner, G. Grundmeier, D. Contreras, M. Castro, A. Keller,
Discover Nano 20 (2025).
date_created: 2025-05-08T07:17:29Z
date_updated: 2025-05-08T07:17:54Z
department:
- _id: '302'
doi: 10.1186/s11671-025-04254-2
intvolume: ' 20'
issue: '1'
language:
- iso: eng
publication: Discover Nano
publication_identifier:
issn:
- 2731-9229
publication_status: published
publisher: Springer Science and Business Media LLC
status: public
title: Rapid assembly of highly ordered DNA origami lattices at mica surfaces
type: journal_article
user_id: '48864'
volume: 20
year: '2025'
...
---
_id: '59860'
abstract:
- lang: eng
text: "A three-dimensional quasi-Fuchsian Lorentzian manifold $M$ is a globally\r\nhyperbolic
spacetime diffeomorphic to $\\Sigma\\times (-1,1)$ for a closed\r\norientable
surface $\\Sigma$ of genus $\\geq 2$. It is the quotient\r\n$M=\\Gamma\\backslash
\\Omega_\\Gamma$ of an open set $\\Omega_\\Gamma\\subset {\\rm\r\nAdS}_3$ by a
discrete group $\\Gamma$ of isometries of ${\\rm AdS}_3$ which is a\r\nparticular
example of an Anosov representation of $\\pi_1(\\Sigma)$. We first\r\nshow that
the spacelike geodesic flow of $M$ is Axiom A, has a discrete Ruelle\r\nresonance
spectrum with associated (co-)resonant states, and that the\r\nPoincar\\'e series
for $\\Gamma$ extend meromorphically to $\\mathbb{C}$. This is\r\nthen used to
prove that there is a natural notion of resolvent of the\r\npseudo-Riemannian
Laplacian $\\Box$ of $M$, which is meromorphic on $\\mathbb{C}$\r\nwith poles
of finite rank, defining a notion of quantum resonances and quantum\r\nresonant
states related to the Ruelle resonances and (co-)resonant states by a\r\nquantum-classical
correspondence. This initiates the spectral study of convex\r\nco-compact pseudo-Riemannian
locally symmetric spaces."
author:
- first_name: Benjamin
full_name: Delarue, Benjamin
id: '70575'
last_name: Delarue
- first_name: Colin
full_name: Guillarmou, Colin
last_name: Guillarmou
- first_name: Daniel
full_name: Monclair, Daniel
last_name: Monclair
citation:
ama: Delarue B, Guillarmou C, Monclair D. Spectra of Lorentzian quasi-Fuchsian manifolds.
arXiv:250421762. Published online 2025.
apa: Delarue, B., Guillarmou, C., & Monclair, D. (2025). Spectra of Lorentzian
quasi-Fuchsian manifolds. In arXiv:2504.21762.
bibtex: '@article{Delarue_Guillarmou_Monclair_2025, title={Spectra of Lorentzian
quasi-Fuchsian manifolds}, journal={arXiv:2504.21762}, author={Delarue, Benjamin
and Guillarmou, Colin and Monclair, Daniel}, year={2025} }'
chicago: Delarue, Benjamin, Colin Guillarmou, and Daniel Monclair. “Spectra of Lorentzian
Quasi-Fuchsian Manifolds.” ArXiv:2504.21762, 2025.
ieee: B. Delarue, C. Guillarmou, and D. Monclair, “Spectra of Lorentzian quasi-Fuchsian
manifolds,” arXiv:2504.21762. 2025.
mla: Delarue, Benjamin, et al. “Spectra of Lorentzian Quasi-Fuchsian Manifolds.”
ArXiv:2504.21762, 2025.
short: B. Delarue, C. Guillarmou, D. Monclair, ArXiv:2504.21762 (2025).
date_created: 2025-05-12T08:17:23Z
date_updated: 2025-05-12T08:18:06Z
external_id:
arxiv:
- '2504.21762'
language:
- iso: eng
publication: arXiv:2504.21762
status: public
title: Spectra of Lorentzian quasi-Fuchsian manifolds
type: preprint
user_id: '70575'
year: '2025'
...
---
_id: '59867'
author:
- first_name: Alexander
full_name: Dübbert, Alexander
id: '44613'
last_name: Dübbert
orcid: 0009-0002-4063-801X
citation:
ama: 'Dübbert A. Muster in der Benamung “nachhaltiger” Lebensmittelmarkennamen -
Kulturbezogene Deutungen von Namen am stationären Verkaufsort als Raum. In: Kornbach
A, Lammer C, Magdeburg L, eds. Transdisziplinäre Räume in den Kulturwissenschaften.
Vol 3. Interdisziplinäre Studien des Paderborner Graduiertenzentrums für Kulturwissenschaften.
Herder; 2025:403-429.'
apa: Dübbert, A. (2025). Muster in der Benamung “nachhaltiger” Lebensmittelmarkennamen
- Kulturbezogene Deutungen von Namen am stationären Verkaufsort als Raum. In A.
Kornbach, C. Lammer, & L. Magdeburg (Eds.), Transdisziplinäre Räume in
den Kulturwissenschaften (Vol. 3, pp. 403–429). Herder.
bibtex: '@inbook{Dübbert_2025, place={Freiburg im Breisgau}, series={Interdisziplinäre
Studien des Paderborner Graduiertenzentrums für Kulturwissenschaften}, title={Muster
in der Benamung “nachhaltiger” Lebensmittelmarkennamen - Kulturbezogene Deutungen
von Namen am stationären Verkaufsort als Raum}, volume={3}, booktitle={Transdisziplinäre
Räume in den Kulturwissenschaften}, publisher={Herder}, author={Dübbert, Alexander},
editor={Kornbach, Alina and Lammer, Christina and Magdeburg, Lena}, year={2025},
pages={403–429}, collection={Interdisziplinäre Studien des Paderborner Graduiertenzentrums
für Kulturwissenschaften} }'
chicago: 'Dübbert, Alexander. “Muster in der Benamung ‘nachhaltiger’ Lebensmittelmarkennamen
- Kulturbezogene Deutungen von Namen am stationären Verkaufsort als Raum.” In
Transdisziplinäre Räume in den Kulturwissenschaften, edited by Alina Kornbach,
Christina Lammer, and Lena Magdeburg, 3:403–29. Interdisziplinäre Studien des
Paderborner Graduiertenzentrums für Kulturwissenschaften. Freiburg im Breisgau:
Herder, 2025.'
ieee: 'A. Dübbert, “Muster in der Benamung ‘nachhaltiger’ Lebensmittelmarkennamen
- Kulturbezogene Deutungen von Namen am stationären Verkaufsort als Raum,” in
Transdisziplinäre Räume in den Kulturwissenschaften, vol. 3, A. Kornbach,
C. Lammer, and L. Magdeburg, Eds. Freiburg im Breisgau: Herder, 2025, pp. 403–429.'
mla: Dübbert, Alexander. “Muster in der Benamung ‘nachhaltiger’ Lebensmittelmarkennamen
- Kulturbezogene Deutungen von Namen am stationären Verkaufsort als Raum.” Transdisziplinäre
Räume in den Kulturwissenschaften, edited by Alina Kornbach et al., vol. 3,
Herder, 2025, pp. 403–29.
short: 'A. Dübbert, in: A. Kornbach, C. Lammer, L. Magdeburg (Eds.), Transdisziplinäre
Räume in den Kulturwissenschaften, Herder, Freiburg im Breisgau, 2025, pp. 403–429.'
date_created: 2025-05-12T11:41:46Z
date_updated: 2025-05-12T11:41:56Z
department:
- _id: '115'
editor:
- first_name: Alina
full_name: Kornbach, Alina
last_name: Kornbach
- first_name: Christina
full_name: Lammer, Christina
last_name: Lammer
- first_name: Lena
full_name: Magdeburg, Lena
last_name: Magdeburg
intvolume: ' 3'
language:
- iso: ger
main_file_link:
- open_access: '1'
url: https://www.herder.de/wissen/shop/p8/90093-transdisziplinaere-raeume-in-den-kulturwissenschaften-open-access-pdf/
oa: '1'
page: 403-429
place: Freiburg im Breisgau
publication: Transdisziplinäre Räume in den Kulturwissenschaften
publication_identifier:
unknown:
- 978-3-534-64164-2
publication_status: published
publisher: Herder
series_title: Interdisziplinäre Studien des Paderborner Graduiertenzentrums für Kulturwissenschaften
status: public
title: Muster in der Benamung 'nachhaltiger' Lebensmittelmarkennamen - Kulturbezogene
Deutungen von Namen am stationären Verkaufsort als Raum
type: book_chapter
user_id: '44613'
volume: 3
year: '2025'
...
---
_id: '59870'
abstract:
- lang: eng
text: |-
One of the most important strategies for reducing CO
2
emissions in the mobility sector is lightweight construction. In particular, the car body offers several opportunities for weight reduction. Multi-material designs are increasingly being applied to select the most suitable material for the respective load and ultimately achieve synergy effects. For example, aluminium castings are used at the nodes of a spaceframe body. Subsequently, these are joined with profiles to form the bodyshell. To join different materials mechanical joining techniques, such as semi-tubular self-piercing riveting, are deployed. According to the current state of the art, cracks occur in the aluminium castings during the mechanical joining process as a result of the high degree of deformation. Although the aluminium casting alloys of the AlSi-system exhibit low ductility, these alloys reveal excellent castability. In particular, the ability to cast thin structural parts is enabled by the low liquidus point of the near eutectic aluminium casting alloys.
This study addresses the mechanical joining properties of the near eutectic aluminium casting alloy AlSi12, depending on different microstructures. These are achieved by annealing processes and modifying agents. Through an adapted heat treatment, the previously lamellar morphology can be transformed into a globular morphology, which leads to increased ductility and prevents the formation of cracks during the self-piercing riveting (SPR). The joinability is investigated using different die geometries, whereas the joint formation is analysed regarding crack initiation. To evaluate the increased ductility, microstructural and mechanical tests are performed and finally, a microstructure-joinability correlation is established.
author:
- first_name: M.
full_name: Neuser, M.
last_name: Neuser
- first_name: P.-K.
full_name: Holtkamp, P.-K.
last_name: Holtkamp
- first_name: K.-P.
full_name: Hoyer, K.-P.
last_name: Hoyer
- first_name: F.
full_name: Kappe, F.
last_name: Kappe
- first_name: S.
full_name: Yildiz, S.
last_name: Yildiz
- first_name: M.
full_name: Bobbert, M.
last_name: Bobbert
- first_name: G.
full_name: Meschut, G.
last_name: Meschut
- first_name: M.
full_name: Schaper, M.
last_name: Schaper
citation:
ama: 'Neuser M, Holtkamp P-K, Hoyer K-P, et al. Mechanical properties and joinability
of the near-eutectic aluminium casting alloy AlSi12. Proceedings of the Institution
of Mechanical Engineers, Part L: Journal of Materials: Design and Applications.
2025;239(4):801-815. doi:10.1177/14644207251319922'
apa: 'Neuser, M., Holtkamp, P.-K., Hoyer, K.-P., Kappe, F., Yildiz, S., Bobbert,
M., Meschut, G., & Schaper, M. (2025). Mechanical properties and joinability
of the near-eutectic aluminium casting alloy AlSi12. Proceedings of the Institution
of Mechanical Engineers, Part L: Journal of Materials: Design and Applications,
239(4), 801–815. https://doi.org/10.1177/14644207251319922'
bibtex: '@article{Neuser_Holtkamp_Hoyer_Kappe_Yildiz_Bobbert_Meschut_Schaper_2025,
title={Mechanical properties and joinability of the near-eutectic aluminium casting
alloy AlSi12}, volume={239}, DOI={10.1177/14644207251319922},
number={4}, journal={Proceedings of the Institution of Mechanical Engineers, Part
L: Journal of Materials: Design and Applications}, publisher={SAGE Publications},
author={Neuser, M. and Holtkamp, P.-K. and Hoyer, K.-P. and Kappe, F. and Yildiz,
S. and Bobbert, M. and Meschut, G. and Schaper, M.}, year={2025}, pages={801–815}
}'
chicago: 'Neuser, M., P.-K. Holtkamp, K.-P. Hoyer, F. Kappe, S. Yildiz, M. Bobbert,
G. Meschut, and M. Schaper. “Mechanical Properties and Joinability of the Near-Eutectic
Aluminium Casting Alloy AlSi12.” Proceedings of the Institution of Mechanical
Engineers, Part L: Journal of Materials: Design and Applications 239, no.
4 (2025): 801–15. https://doi.org/10.1177/14644207251319922.'
ieee: 'M. Neuser et al., “Mechanical properties and joinability of the near-eutectic
aluminium casting alloy AlSi12,” Proceedings of the Institution of Mechanical
Engineers, Part L: Journal of Materials: Design and Applications, vol. 239,
no. 4, pp. 801–815, 2025, doi: 10.1177/14644207251319922.'
mla: 'Neuser, M., et al. “Mechanical Properties and Joinability of the Near-Eutectic
Aluminium Casting Alloy AlSi12.” Proceedings of the Institution of Mechanical
Engineers, Part L: Journal of Materials: Design and Applications, vol. 239,
no. 4, SAGE Publications, 2025, pp. 801–15, doi:10.1177/14644207251319922.'
short: 'M. Neuser, P.-K. Holtkamp, K.-P. Hoyer, F. Kappe, S. Yildiz, M. Bobbert,
G. Meschut, M. Schaper, Proceedings of the Institution of Mechanical Engineers,
Part L: Journal of Materials: Design and Applications 239 (2025) 801–815.'
date_created: 2025-05-12T15:10:13Z
date_updated: 2025-05-12T15:22:10Z
doi: 10.1177/14644207251319922
intvolume: ' 239'
issue: '4'
language:
- iso: eng
page: 801-815
publication: 'Proceedings of the Institution of Mechanical Engineers, Part L: Journal
of Materials: Design and Applications'
publication_identifier:
issn:
- 1464-4207
- 2041-3076
publication_status: published
publisher: SAGE Publications
status: public
title: Mechanical properties and joinability of the near-eutectic aluminium casting
alloy AlSi12
type: journal_article
user_id: '32340'
volume: 239
year: '2025'
...
---
_id: '59876'
abstract:
- lang: eng
text: 'Abstract. Clinching is a conventional mechanical joining process
used in Multi-Material Design in the automotive sector. To receive the desired
geometrical characteristics in clinch joints, correct process design is required.
To reduce the cost of finding fitting process parameters, numerical simulation
of the joining process can be used to predict the geometrical characteristics,
such as interlock, instead of an experimental approach. These numerical simulation
models consume computational resources and time. In this paper machine learning
is used to find correlations between features of the joining process and geometrical
characteristics in the joint. This serves the purpose of predicting the joint’s
target values more resource-efficiently. Modelling with machine learning requires
a structured dataset with sufficient parameter variation. To create this data
base the following procedure was used. For joining partners, a HC340LA steel alloy
with 2 mm material thickness was used punch-sided and an EN AW 5182 aluminum alloy
with 1.5 mm thickness was used die-sided. For this combination a suitable tool
combination and punch distance was experimentally identified. A finite element
model was created to reproduce the joining process. For the modelling of the material
of both joining partners flow curves determined by Vallaster et al. were used
[1]. The punch and die were recreated digitally by opto-electronic measurements
and transformed into a mesh suitable for numerical simulation. The model was validated
by comparing process values like the maximum force applied by the punch and geometrical
values in the joints cross section. Additionally, a process window for suitable
punch distances was experimentally determined. Afterwards a variation of 70 different
process designs was conducted with variants inside and outside the process window.
The results were used for training, testing and validating various machine learning
models. All models competed against each other to find the must suited model to
predict every geometric value. To ensure good model performances and prevent the
model from overfitting, a tenfold cross validation was used for validating the
models. Analysis of the results gives the following key findings: i) Good predictability
is reached for the interlock and sheet thickness of the joint. ii) Prediction
neck thickness showed low error values, but also low correlation. iii)The prediction
of those key values for evaluating clinch joint characteristics by machine learning
models positively impacts needed resources in comparison to numerical models.'
author:
- first_name: Jean-Patrick
full_name: Ludwig, Jean-Patrick
id: '76631'
last_name: Ludwig
- first_name: 'Seraphin '
full_name: 'Tsi-Nda Lontsi, Seraphin '
last_name: Tsi-Nda Lontsi
- first_name: Jonas
full_name: Neumann, Jonas
last_name: Neumann
- first_name: Lukas
full_name: Kappis, Lukas
last_name: Kappis
- first_name: 'Christian '
full_name: 'Scharr, Christian '
last_name: Scharr
- first_name: Wilko
full_name: Flügge, Wilko
last_name: Flügge
- first_name: Marion
full_name: Merklein, Marion
last_name: Merklein
- first_name: Gerson
full_name: Meschut, Gerson
id: '32056'
last_name: Meschut
orcid: 0000-0002-2763-1246
citation:
ama: 'Ludwig J-P, Tsi-Nda Lontsi S, Neumann J, et al. Data driven prognosis of clinch
joints in multi-material design. In: Materials Research Proceedings. Vol
54. Materials Research Forum LLC; 2025. doi:10.21741/9781644903599-157'
apa: Ludwig, J.-P., Tsi-Nda Lontsi, S., Neumann, J., Kappis, L., Scharr, C., Flügge,
W., Merklein, M., & Meschut, G. (2025). Data driven prognosis of clinch joints
in multi-material design. Materials Research Proceedings, 54. https://doi.org/10.21741/9781644903599-157
bibtex: '@inproceedings{Ludwig_Tsi-Nda Lontsi_Neumann_Kappis_Scharr_Flügge_Merklein_Meschut_2025,
place={Paestum}, title={Data driven prognosis of clinch joints in multi-material
design}, volume={54}, DOI={10.21741/9781644903599-157},
booktitle={Materials Research Proceedings}, publisher={Materials Research Forum
LLC}, author={Ludwig, Jean-Patrick and Tsi-Nda Lontsi, Seraphin and Neumann,
Jonas and Kappis, Lukas and Scharr, Christian and Flügge, Wilko and Merklein,
Marion and Meschut, Gerson}, year={2025} }'
chicago: 'Ludwig, Jean-Patrick, Seraphin Tsi-Nda Lontsi, Jonas Neumann, Lukas Kappis,
Christian Scharr, Wilko Flügge, Marion Merklein, and Gerson Meschut. “Data Driven
Prognosis of Clinch Joints in Multi-Material Design.” In Materials Research
Proceedings, Vol. 54. Paestum: Materials Research Forum LLC, 2025. https://doi.org/10.21741/9781644903599-157.'
ieee: 'J.-P. Ludwig et al., “Data driven prognosis of clinch joints in multi-material
design,” in Materials Research Proceedings, 2025, vol. 54, doi: 10.21741/9781644903599-157.'
mla: Ludwig, Jean-Patrick, et al. “Data Driven Prognosis of Clinch Joints in Multi-Material
Design.” Materials Research Proceedings, vol. 54, Materials Research Forum
LLC, 2025, doi:10.21741/9781644903599-157.
short: 'J.-P. Ludwig, S. Tsi-Nda Lontsi, J. Neumann, L. Kappis, C. Scharr, W. Flügge,
M. Merklein, G. Meschut, in: Materials Research Proceedings, Materials Research
Forum LLC, Paestum, 2025.'
date_created: 2025-05-13T06:51:37Z
date_updated: 2025-05-13T07:20:19Z
department:
- _id: '157'
doi: 10.21741/9781644903599-157
intvolume: ' 54'
language:
- iso: eng
place: Paestum
publication: Materials Research Proceedings
publication_identifier:
issn:
- 2474-395X
publication_status: published
publisher: Materials Research Forum LLC
status: public
title: Data driven prognosis of clinch joints in multi-material design
type: conference
user_id: '76631'
volume: 54
year: '2025'
...
---
_id: '59906'
abstract:
- lang: eng
text: The cationic molybdenum alkylidyne N-heterocyclic carbene (NHC) complex [Mo(C-p-OMeC6H4)(OCMe(CF3)2)2
(IMes)][B(ArF4] (IMes = 1,3-dimesitylimidazol-2-ylidene) was selectively immobilized
inside the pores of ordered mesoporous silica (OMS) with pore diameters of 66,
56, and 28 Å and used in the ring-expansion metathesis polymerization (REMP) of
cyclic olefins to yield cyclic polymers. A strong confinement effect was observed
for cis-cyclooctene (cCOE), 1,5-cyclooctadiene (COD), (+)-2,3-endo,exo-dicarbomethoxynorborn-5-ene
((+)-DCMNBE), and 2-methyl-2-phenylcycloprop-1-ene (MPCP), allowing for the synthesis
of low-molecular-weight cyclic polymers even at a high monomer concentration.
The exclusive formation of cyclic polymers was demonstrated by matrix-assisted
laser desorption ionization time-of-flight (MALDI-TOF) mass spectrometry. Confinement
also influences stereoselectivity, resulting in a pronounced increase in Z-selectivity
and in an increased cis-syndiospecificity.
article_type: original
author:
- first_name: Patrick
full_name: Probst, Patrick
last_name: Probst
- first_name: Moritz
full_name: Lindemann, Moritz
last_name: Lindemann
- first_name: Johanna R.
full_name: Bruckner, Johanna R.
last_name: Bruckner
- first_name: Boshra
full_name: Atwi, Boshra
last_name: Atwi
- first_name: Dongren
full_name: Wang, Dongren
last_name: Wang
- first_name: Felix Richard
full_name: Fischer, Felix Richard
id: '107380'
last_name: Fischer
- first_name: Marc
full_name: Högler, Marc
last_name: Högler
- first_name: Matthias
full_name: Bauer, Matthias
id: '47241'
last_name: Bauer
orcid: 0000-0002-9294-6076
- first_name: Niels
full_name: Hansen, Niels
last_name: Hansen
- first_name: Michael
full_name: Dyballa, Michael
last_name: Dyballa
- first_name: Michael R.
full_name: Buchmeiser, Michael R.
last_name: Buchmeiser
citation:
ama: Probst P, Lindemann M, Bruckner JR, et al. Ring-Expansion Metathesis Polymerization
under Confinement. Journal of the American Chemical Society. 2025;147(10):8741-8750.
doi:10.1021/jacs.4c18171
apa: Probst, P., Lindemann, M., Bruckner, J. R., Atwi, B., Wang, D., Fischer, F.
R., Högler, M., Bauer, M., Hansen, N., Dyballa, M., & Buchmeiser, M. R. (2025).
Ring-Expansion Metathesis Polymerization under Confinement. Journal of the
American Chemical Society, 147(10), 8741–8750. https://doi.org/10.1021/jacs.4c18171
bibtex: '@article{Probst_Lindemann_Bruckner_Atwi_Wang_Fischer_Högler_Bauer_Hansen_Dyballa_et
al._2025, title={Ring-Expansion Metathesis Polymerization under Confinement},
volume={147}, DOI={10.1021/jacs.4c18171},
number={10}, journal={Journal of the American Chemical Society}, publisher={American
Chemical Society (ACS)}, author={Probst, Patrick and Lindemann, Moritz and Bruckner,
Johanna R. and Atwi, Boshra and Wang, Dongren and Fischer, Felix Richard and Högler,
Marc and Bauer, Matthias and Hansen, Niels and Dyballa, Michael and et al.}, year={2025},
pages={8741–8750} }'
chicago: 'Probst, Patrick, Moritz Lindemann, Johanna R. Bruckner, Boshra Atwi, Dongren
Wang, Felix Richard Fischer, Marc Högler, et al. “Ring-Expansion Metathesis Polymerization
under Confinement.” Journal of the American Chemical Society 147, no. 10
(2025): 8741–50. https://doi.org/10.1021/jacs.4c18171.'
ieee: 'P. Probst et al., “Ring-Expansion Metathesis Polymerization under
Confinement,” Journal of the American Chemical Society, vol. 147, no. 10,
pp. 8741–8750, 2025, doi: 10.1021/jacs.4c18171.'
mla: Probst, Patrick, et al. “Ring-Expansion Metathesis Polymerization under Confinement.”
Journal of the American Chemical Society, vol. 147, no. 10, American Chemical
Society (ACS), 2025, pp. 8741–50, doi:10.1021/jacs.4c18171.
short: P. Probst, M. Lindemann, J.R. Bruckner, B. Atwi, D. Wang, F.R. Fischer, M.
Högler, M. Bauer, N. Hansen, M. Dyballa, M.R. Buchmeiser, Journal of the American
Chemical Society 147 (2025) 8741–8750.
date_created: 2025-05-15T06:53:39Z
date_updated: 2025-05-15T06:55:29Z
department:
- _id: '306'
doi: 10.1021/jacs.4c18171
intvolume: ' 147'
issue: '10'
language:
- iso: eng
main_file_link:
- url: https://pubs.acs.org/doi/full/10.1021/jacs.4c18171
page: 8741-8750
publication: Journal of the American Chemical Society
publication_identifier:
issn:
- 0002-7863
- 1520-5126
publication_status: published
publisher: American Chemical Society (ACS)
status: public
title: Ring-Expansion Metathesis Polymerization under Confinement
type: journal_article
user_id: '48467'
volume: 147
year: '2025'
...
---
_id: '59842'
author:
- first_name: Linda
full_name: Kothe, Linda
last_name: Kothe
- first_name: Marvin
full_name: Kloß, Marvin
last_name: Kloß
- first_name: Tobias
full_name: Wagner, Tobias
last_name: Wagner
- first_name: Marc
full_name: Wengenroth, Marc
last_name: Wengenroth
- first_name: Michael
full_name: Poeplau, Michael
last_name: Poeplau
- first_name: Stephan
full_name: Ester, Stephan
last_name: Ester
- first_name: Michael
full_name: Tiemann, Michael
id: '23547'
last_name: Tiemann
orcid: 0000-0003-1711-2722
citation:
ama: Kothe L, Kloß M, Wagner T, et al. Temperature Studies of Zinc Tin Oxide Photoluminescence
for Optical O2 Sensing. The Journal of Physical Chemistry C.
2025;129(19):9239-9245. doi:10.1021/acs.jpcc.5c01678
apa: Kothe, L., Kloß, M., Wagner, T., Wengenroth, M., Poeplau, M., Ester, S., &
Tiemann, M. (2025). Temperature Studies of Zinc Tin Oxide Photoluminescence for
Optical O2 Sensing. The Journal of Physical Chemistry C, 129(19),
9239–9245. https://doi.org/10.1021/acs.jpcc.5c01678
bibtex: '@article{Kothe_Kloß_Wagner_Wengenroth_Poeplau_Ester_Tiemann_2025, title={Temperature
Studies of Zinc Tin Oxide Photoluminescence for Optical O2 Sensing},
volume={129}, DOI={10.1021/acs.jpcc.5c01678},
number={19}, journal={The Journal of Physical Chemistry C}, publisher={American
Chemical Society (ACS)}, author={Kothe, Linda and Kloß, Marvin and Wagner, Tobias
and Wengenroth, Marc and Poeplau, Michael and Ester, Stephan and Tiemann, Michael},
year={2025}, pages={9239–9245} }'
chicago: 'Kothe, Linda, Marvin Kloß, Tobias Wagner, Marc Wengenroth, Michael Poeplau,
Stephan Ester, and Michael Tiemann. “Temperature Studies of Zinc Tin Oxide Photoluminescence
for Optical O2 Sensing.” The Journal of Physical Chemistry C
129, no. 19 (2025): 9239–45. https://doi.org/10.1021/acs.jpcc.5c01678.'
ieee: 'L. Kothe et al., “Temperature Studies of Zinc Tin Oxide Photoluminescence
for Optical O2 Sensing,” The Journal of Physical Chemistry C,
vol. 129, no. 19, pp. 9239–9245, 2025, doi: 10.1021/acs.jpcc.5c01678.'
mla: Kothe, Linda, et al. “Temperature Studies of Zinc Tin Oxide Photoluminescence
for Optical O2 Sensing.” The Journal of Physical Chemistry C,
vol. 129, no. 19, American Chemical Society (ACS), 2025, pp. 9239–45, doi:10.1021/acs.jpcc.5c01678.
short: L. Kothe, M. Kloß, T. Wagner, M. Wengenroth, M. Poeplau, S. Ester, M. Tiemann,
The Journal of Physical Chemistry C 129 (2025) 9239–9245.
date_created: 2025-05-07T12:15:41Z
date_updated: 2025-05-16T06:16:18Z
department:
- _id: '35'
- _id: '2'
- _id: '307'
doi: 10.1021/acs.jpcc.5c01678
intvolume: ' 129'
issue: '19'
language:
- iso: eng
page: 9239-9245
publication: The Journal of Physical Chemistry C
publication_identifier:
issn:
- 1932-7447
- 1932-7455
publication_status: published
publisher: American Chemical Society (ACS)
quality_controlled: '1'
status: public
title: Temperature Studies of Zinc Tin Oxide Photoluminescence for Optical O2
Sensing
type: journal_article
user_id: '23547'
volume: 129
year: '2025'
...
---
_id: '59438'
abstract:
- lang: eng
text: "Abstract\r\n It has been established
that, in Bayesian tasks, performance and typical errors in reading
information from filled visualizations depend both on the type of the provided
visualization and information format. However, apart from reading visualizations,
students should also be able to create visualizations on their own and successfully
use them as heuristic tools in modeling tasks. In this paper, we first want to
broaden the view on Bayesian reasoning to probabilistic tasks with two binary
events in general and embed the whole process of solving these tasks using probabilistic
visualizations in a modified modeling framework. Thereby, it becomes apparent
that most of the steps remained untouched by existing research. Second, in the
present empirical study, we focused on one part of the largely unexplored creation
process and examined entering statistical information
into empty visualizations as heuristic tools. N = 172
participants had to enter conditional and joint probabilities or the corresponding
frequencies into empty visualizations in a paper-and-pencil test. We analyze (a)
students’ performance when entering information in visualizations and (b) typical
errors, both dependent on the information format (probabilities
vs. natural frequencies), which empty visualization structure
(2⨯2 table, double tree, net diagram) was provided, and type of information
(conditional vs. joint information). The well-known positive effect of natural
frequencies on participants’ performance was evident when entering conditional
information into 2⨯2 tables and net diagrams. However, with respect to joint information,
no superior effect of frequencies was observed. Furthermore, the theoretical implementation
of our research in a modeling cycle allows us to identify desiderata for future
research."
author:
- first_name: Michael
full_name: Rößner, Michael
last_name: Rößner
- first_name: Karin
full_name: Binder, Karin
id: '83381'
last_name: Binder
- first_name: Corbinian
full_name: Geier, Corbinian
last_name: Geier
- first_name: Stefan
full_name: Krauss, Stefan
last_name: Krauss
citation:
ama: Rößner M, Binder K, Geier C, Krauss S. Students’ performance and typical errors
in filling empty probabilistic visualizations with probabilities or frequencies.
Educational Studies in Mathematics. Published online 2025. doi:10.1007/s10649-024-10372-y
apa: Rößner, M., Binder, K., Geier, C., & Krauss, S. (2025). Students’ performance
and typical errors in filling empty probabilistic visualizations with probabilities
or frequencies. Educational Studies in Mathematics. https://doi.org/10.1007/s10649-024-10372-y
bibtex: '@article{Rößner_Binder_Geier_Krauss_2025, title={Students’ performance
and typical errors in filling empty probabilistic visualizations with probabilities
or frequencies}, DOI={10.1007/s10649-024-10372-y},
journal={Educational Studies in Mathematics}, publisher={Springer Science and
Business Media LLC}, author={Rößner, Michael and Binder, Karin and Geier, Corbinian
and Krauss, Stefan}, year={2025} }'
chicago: Rößner, Michael, Karin Binder, Corbinian Geier, and Stefan Krauss. “Students’
Performance and Typical Errors in Filling Empty Probabilistic Visualizations with
Probabilities or Frequencies.” Educational Studies in Mathematics, 2025.
https://doi.org/10.1007/s10649-024-10372-y.
ieee: 'M. Rößner, K. Binder, C. Geier, and S. Krauss, “Students’ performance and
typical errors in filling empty probabilistic visualizations with probabilities
or frequencies,” Educational Studies in Mathematics, 2025, doi: 10.1007/s10649-024-10372-y.'
mla: Rößner, Michael, et al. “Students’ Performance and Typical Errors in Filling
Empty Probabilistic Visualizations with Probabilities or Frequencies.” Educational
Studies in Mathematics, Springer Science and Business Media LLC, 2025, doi:10.1007/s10649-024-10372-y.
short: M. Rößner, K. Binder, C. Geier, S. Krauss, Educational Studies in Mathematics
(2025).
date_created: 2025-04-08T11:35:36Z
date_updated: 2025-05-17T18:05:23Z
ddc:
- '370'
doi: 10.1007/s10649-024-10372-y
file:
- access_level: closed
content_type: application/pdf
creator: binder
date_created: 2025-05-17T18:05:03Z
date_updated: 2025-05-17T18:05:03Z
file_id: '59926'
file_name: Rößner et al. 2025 Typical student errors.pdf
file_size: 2982734
relation: main_file
success: 1
file_date_updated: 2025-05-17T18:05:03Z
language:
- iso: eng
publication: Educational Studies in Mathematics
publication_identifier:
issn:
- 0013-1954
- 1573-0816
publication_status: published
publisher: Springer Science and Business Media LLC
status: public
title: Students’ performance and typical errors in filling empty probabilistic visualizations
with probabilities or frequencies
type: journal_article
user_id: '83381'
year: '2025'
...
---
_id: '59992'
abstract:
- lang: eng
text: The immobilization of DNA origami nanostructures on solid surfaces
is an important prerequisite for their application in many biosensors. So far,
DNA origami immobilization has been investigated in detail only...
author:
- first_name: Xiaodan
full_name: Xu, Xiaodan
last_name: Xu
- first_name: Sandra Alicja
full_name: Golebiowska, Sandra Alicja
id: '69524'
last_name: Golebiowska
- first_name: Teresa
full_name: de los Arcos, Teresa
last_name: de los Arcos
- first_name: Guido
full_name: Grundmeier, Guido
id: '194'
last_name: Grundmeier
- first_name: Adrian
full_name: Keller, Adrian
id: '48864'
last_name: Keller
orcid: 0000-0001-7139-3110
citation:
ama: Xu X, Golebiowska SA, de los Arcos T, Grundmeier G, Keller A. DNA origami adsorption
at single-crystalline TiO2 surfaces. RSC Applied Interfaces. Published
online 2025. doi:10.1039/d5lf00109a
apa: Xu, X., Golebiowska, S. A., de los Arcos, T., Grundmeier, G., & Keller,
A. (2025). DNA origami adsorption at single-crystalline TiO2 surfaces. RSC
Applied Interfaces. https://doi.org/10.1039/d5lf00109a
bibtex: '@article{Xu_Golebiowska_de los Arcos_Grundmeier_Keller_2025, title={DNA
origami adsorption at single-crystalline TiO2 surfaces}, DOI={10.1039/d5lf00109a},
journal={RSC Applied Interfaces}, publisher={Royal Society of Chemistry (RSC)},
author={Xu, Xiaodan and Golebiowska, Sandra Alicja and de los Arcos, Teresa and
Grundmeier, Guido and Keller, Adrian}, year={2025} }'
chicago: Xu, Xiaodan, Sandra Alicja Golebiowska, Teresa de los Arcos, Guido Grundmeier,
and Adrian Keller. “DNA Origami Adsorption at Single-Crystalline TiO2 Surfaces.”
RSC Applied Interfaces, 2025. https://doi.org/10.1039/d5lf00109a.
ieee: 'X. Xu, S. A. Golebiowska, T. de los Arcos, G. Grundmeier, and A. Keller,
“DNA origami adsorption at single-crystalline TiO2 surfaces,” RSC Applied Interfaces,
2025, doi: 10.1039/d5lf00109a.'
mla: Xu, Xiaodan, et al. “DNA Origami Adsorption at Single-Crystalline TiO2 Surfaces.”
RSC Applied Interfaces, Royal Society of Chemistry (RSC), 2025, doi:10.1039/d5lf00109a.
short: X. Xu, S.A. Golebiowska, T. de los Arcos, G. Grundmeier, A. Keller, RSC Applied
Interfaces (2025).
date_created: 2025-05-19T09:30:44Z
date_updated: 2025-05-19T09:32:05Z
department:
- _id: '302'
doi: 10.1039/d5lf00109a
language:
- iso: eng
publication: RSC Applied Interfaces
publication_identifier:
issn:
- 2755-3701
publication_status: published
publisher: Royal Society of Chemistry (RSC)
status: public
title: DNA origami adsorption at single-crystalline TiO2 surfaces
type: journal_article
user_id: '48864'
year: '2025'
...
---
_id: '60031'
abstract:
- lang: eng
text: Reputation systems to rate companies’ performances remain largely unexplored
in research and are scarcely used in business-to-business (B2B) practice. Such
systems are essential for businesses seeking trustworthy partners, as they help
reduce information asymmetry, lower buyers' transaction risks, and allow high-quality
service providers to justify premium pricing. Unlike traditional review-based
systems in the business-to-consumer (B2C) context, we propose a B2B reputation
mechanism in which buyers commit to a rating payment before a transaction. Once
the buyer finalizes the rating, this payment is executed and recorded on a blockchain
as an immutable, secure ledger. Our system mimics natural trust-building mechanisms
with ratings that are (1) monetary-based, (2) stake-based, (3) non-aggregated,
(4) involve counter-ratings, (5) selectively sellable, (6) individually comparable,
(7) stored on a blockchain, (8) and monitored by a third instance. This system
provides a novel approach to fostering trust in B2B transactions by reducing information
asymmetry and transaction risk. We illustrate the mechanism’s application in the
consulting sector. Our analysis has identified 23 institutional trust and distrust
dimensions that promote establishing institutional trust through the proposed
mechanism. Qualitative interviews suggest that, while complex and challenging
to apply, this mechanism can foster trust in B2B transactions. Given the low maturity
in the application domain—rating professional business services with business
reputation systems—and solution domain—using monetary stakes for ratings, this
system stands as a potential invention.
article_type: original
author:
- first_name: Simon
full_name: Hemmrich, Simon
last_name: Hemmrich
- first_name: Volker
full_name: Nissen, Volker
last_name: Nissen
- first_name: Daniel
full_name: Beverugen, Daniel
last_name: Beverugen
- first_name: Josias Daniel Miño
full_name: Pauls, Josias Daniel Miño
last_name: Pauls
citation:
ama: 'Hemmrich S, Nissen V, Beverugen D, Pauls JDM. Blockchain-based reputation
systems for business-to-business services: designing a reputation mechanism to
reduce information asymmetry in professional consulting. Information Systems
and e-Business Management. Published online 2025. doi:10.1007/s10257-025-00702-9'
apa: 'Hemmrich, S., Nissen, V., Beverugen, D., & Pauls, J. D. M. (2025). Blockchain-based
reputation systems for business-to-business services: designing a reputation mechanism
to reduce information asymmetry in professional consulting. Information Systems
and E-Business Management. https://doi.org/10.1007/s10257-025-00702-9'
bibtex: '@article{Hemmrich_Nissen_Beverugen_Pauls_2025, title={Blockchain-based
reputation systems for business-to-business services: designing a reputation mechanism
to reduce information asymmetry in professional consulting}, DOI={10.1007/s10257-025-00702-9},
journal={Information Systems and e-Business Management}, publisher={Springer Science
and Business Media LLC}, author={Hemmrich, Simon and Nissen, Volker and Beverugen,
Daniel and Pauls, Josias Daniel Miño}, year={2025} }'
chicago: 'Hemmrich, Simon, Volker Nissen, Daniel Beverugen, and Josias Daniel Miño
Pauls. “Blockchain-Based Reputation Systems for Business-to-Business Services:
Designing a Reputation Mechanism to Reduce Information Asymmetry in Professional
Consulting.” Information Systems and E-Business Management, 2025. https://doi.org/10.1007/s10257-025-00702-9.'
ieee: 'S. Hemmrich, V. Nissen, D. Beverugen, and J. D. M. Pauls, “Blockchain-based
reputation systems for business-to-business services: designing a reputation mechanism
to reduce information asymmetry in professional consulting,” Information Systems
and e-Business Management, 2025, doi: 10.1007/s10257-025-00702-9.'
mla: 'Hemmrich, Simon, et al. “Blockchain-Based Reputation Systems for Business-to-Business
Services: Designing a Reputation Mechanism to Reduce Information Asymmetry in
Professional Consulting.” Information Systems and E-Business Management,
Springer Science and Business Media LLC, 2025, doi:10.1007/s10257-025-00702-9.'
short: S. Hemmrich, V. Nissen, D. Beverugen, J.D.M. Pauls, Information Systems and
E-Business Management (2025).
date_created: 2025-05-25T10:06:23Z
date_updated: 2025-05-25T10:12:00Z
ddc:
- '000'
department:
- _id: '195'
doi: 10.1007/s10257-025-00702-9
file:
- access_level: closed
content_type: application/pdf
creator: dabe
date_created: 2025-05-25T10:09:43Z
date_updated: 2025-05-25T10:09:43Z
file_id: '60032'
file_name: ISeB - Blockchain-Based Reputation Systems.pdf
file_size: 1440251
relation: main_file
success: 1
file_date_updated: 2025-05-25T10:09:43Z
has_accepted_license: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://link.springer.com/article/10.1007/s10257-025-00702-9?utm_source=rct_congratemailt&utm_medium=email&utm_campaign=oa_20250523&utm_content=10.1007%2Fs10257-025-00702-9
oa: '1'
publication: Information Systems and e-Business Management
publication_identifier:
issn:
- 1617-9846
- 1617-9854
publication_status: published
publisher: Springer Science and Business Media LLC
quality_controlled: '1'
status: public
title: 'Blockchain-based reputation systems for business-to-business services: designing
a reputation mechanism to reduce information asymmetry in professional consulting'
type: journal_article
user_id: '59677'
year: '2025'
...