@article{64289,
abstract = {{Abstract
Motivated by asymptotic symmetry groups in general relativity, we consider projective unitary representations
$$\overline{\rho }$$
ρ
¯
of the Lie group
$${{\,\textrm{Diff}\,}}_c(M)$$
Diff
c
(
M
)
of compactly supported diffeomorphisms of a smooth manifold M that satisfy a so-called generalized positive energy condition. In particular, this captures representations that are in a suitable sense compatible with a KMS state on the von Neumann algebra generated by
$$\overline{\rho }$$
ρ
¯
. We show that if M is connected and
$$\dim (M) > 1$$
dim
(
M
)
>
1
, then any such representation is necessarily trivial on the identity component
$${{\,\textrm{Diff}\,}}_c(M)_0$$
Diff
c
(
M
)
0
. As an intermediate step towards this result, we determine the continuous second Lie algebra cohomology
$$H^2_\textrm{ct}(\mathcal {X}_c(M), \mathbb {R})$$
H
ct
2
(
X
c
(
M
)
,
R
)
of the Lie algebra of compactly supported vector fields. This is subtly different from Gelfand–Fuks cohomology in view of the compact support condition.}},
author = {{Janssens, Bas and Niestijl, Milan}},
issn = {{0010-3616}},
journal = {{Communications in Mathematical Physics}},
number = {{2}},
publisher = {{Springer Science and Business Media LLC}},
title = {{{Generalized Positive Energy Representations of the Group of Compactly Supported Diffeomorphisms}}},
doi = {{10.1007/s00220-024-05226-w}},
volume = {{406}},
year = {{2025}},
}
@techreport{62172,
author = {{Kokew, Stephan Matthias}},
issn = {{1864-9483}},
pages = {{88--89}},
publisher = {{Aschendorff}},
title = {{{Ressourcen für Resilienz in islamischer Tradition. Theologische, ethische und mystische Perspektiven}}},
volume = {{2/2025}},
year = {{2025}},
}
@inproceedings{59910,
abstract = {{The connection between inconsistent databases and Dung’s abstract argumentation framework has recently drawn growing interest. Specifically, an inconsistent database, involving certain types of integrity constraints such as functional and inclusion dependencies, can be viewed as an argumentation framework in Dung’s setting. Nevertheless, no prior work has explored the exact expressive power of Dung’s theory of argumentation when compared to inconsistent databases and integrity constraints. In this paper, we close this gap by arguing that an argumentation framework can also be viewed as an inconsistent database. We first establish a connection between subset-repairs for databases and extensions for AFs considering conflict-free, naive, admissible, and preferred semantics. Further, we define a new family of attribute-based repairs based on the principle of maximal content preservation. The effectiveness of these repairs is then highlighted by connecting them to stable, semi-stable, and stage semantics. Our main contributions include translating an argumentation framework into a database together with integrity constraints. Moreover, this translation can be achieved in polynomial time, which is essential in transferring complexity results between the two formalisms.}},
author = {{Mahmood, Yasir and Hecher, Markus and Ngonga Ngomo, Axel-Cyrille}},
booktitle = {{Proceedings of the AAAI Conference on Artificial Intelligence}},
issn = {{2374-3468}},
number = {{14}},
pages = {{15058--15066}},
publisher = {{Association for the Advancement of Artificial Intelligence (AAAI)}},
title = {{{Dung’s Argumentation Framework: Unveiling the Expressive Power with Inconsistent Databases}}},
doi = {{10.1609/aaai.v39i14.33651}},
volume = {{39}},
year = {{2025}},
}
@article{63181,
abstract = {{
Purpose
This study aims to explore the current state of generative artificial intelligence (genAI) in the workplace and discuss a potential digital divide in relation to genAI.
Design/methodology/approach
Using a quantitative approach, we study career-relevant predictors – family socio-economic status, education and work characteristics – and their relationship with different indicators of digital divide – access, genAI use, attitude toward AI and perceived AI literacy. To test our hypothesis, we used logistic and linear regression analyses. Additionally, latent profile analysis was conducted to identify patterns regarding work characteristics within the sample.
Findings
Among the 1,341 participants, 326 individuals were genAI users. Our results show that higher family socio-economic status, education and enriched and demanding work can be linked to a more positive attitude toward AI and higher perceived AI literacy. In the case of access and frequency of use, the results were mixed.
Originality/value
Our findings offer a novel contribution by examining a potentially upcoming digital divide in the case of genAI. We focus on how the career adaptation of the workforce might develop in the age of genAI. Importantly, we highlight that not all individuals may have an equal opportunity to adapt to genAI, which could hinder their future career development and reinforce patterns of inequality. Future research should address how to promote inclusivity and consider individual differences in adapting to genAI.
}},
author = {{Neufeld, Katharina and Ohly, Sandra and Sedefoglu-Ulucak, Didem and Steinhardt, Isabel and Mauermeister, Sylvi}},
issn = {{1362-0436}},
journal = {{Career Development International}},
pages = {{1--19}},
publisher = {{Emerald}},
title = {{{Analyzing the role of family socio-economic status, education and work characteristics in times of generative artificial intelligence and digital divide}}},
doi = {{10.1108/cdi-10-2024-0442}},
year = {{2025}},
}
@article{64551,
abstract = {{Laterally coupled vertical-cavity surface-emitting lasers (VCSELs) can exhibit additional resonances at high modulation frequencies that can substantially increase the laser’s modulation bandwidth. State-of-the-art laterally coupled devices require non-standard manufacturing technology and precise tuning of the currents supplied to each cavity separately to form optical supermodes suitable for such resonances. Here, we report on a novel switching phenomenon in laterally coupled VCSEL structures having only a single common electric contact and manufactured in a standard oxide-confined VCSEL geometry. At lower currents, they can be operated in a weakly coupled (WCR) regime and, at higher currents, in an injection-locked (IL) regime, enabling fundamentally different spectral and dynamic features. In the WCR, both optical supermodes lase and a narrow tunable plasma-assisted peak at their beating frequency is observed for each of the apertures, with a current-dependent frequency tuning and anti-phase intensity oscillations in each of the cavities. In contrast, in the IL regimes, only one (anti-symmetric) supermode lases. This adds a broader resonance to the modulation response while the intensity oscillations in both cavities are in-phase. Only the IL regime can result in increased modulation bandwidth of the system. Measurements of the pulse responses and continuous modulation up to 70 GHz for both operational regimes are presented and compared with simulations of our distributed rate equation model whose parameters are extracted from full-wave electromagnetic simulations of the device, including the temperature distribution in the device. Excellent agreement is found and enables comprehensive understanding of the dynamics of supermodes in oxide-confined coupled cavity VCSELs.}},
author = {{Lindemann, M. and D’Alessandro, M. and Ledentsov, N. and Makarov, O. Y. and Ledentsov, N. N. and Tibaldi, A. and Gerhardt, Nils Christopher and Hofmann, M. R.}},
issn = {{0021-8979}},
journal = {{Journal of Applied Physics}},
number = {{5}},
publisher = {{AIP Publishing}},
title = {{{Laterally coupled vertical-cavity surface-emitting lasers with tunable resonance width and frequency}}},
doi = {{10.1063/5.0275622}},
volume = {{138}},
year = {{2025}},
}
@article{58163,
abstract = {{Fibre-reinforced polymers are increasingly used due to their high specific strength, making them suitable for local sheet metal reinforcement. This allows improved overall mechanical properties with reduced wall thickness of the sheet metal part and, thus, lower weight of the components. One of the main focuses of research into such hybrid structures is on the adhesive properties and the respective failure behaviour of the interfaces. Generally, the failure behaviour under the influence of mechanical loads can be divided into adhesive, cohesive and mixed-mode failure. The correlation between observed failure behaviour and adhesion properties of the hybrid composite materials is analysed in detail in this work. The hybrid composite consists of an aluminium sheet of the alloy EN AW‑6082 T6 and thermoset carbon fibre-reinforced plastic (CFRP) prepreg. The aluminium sheet was laser pretreated before hybrid production to improve the adhesion properties. The specimens studied were produced by the prepreg pressing process, in which the components are cured and joined simultaneously. The influences of the thickness of the CFRP part, the layup, the fibre orientation at the boundary layer, and the laser pretreatment parameters on the properties of the hybrid joints were investigated.}},
author = {{Wu, Shuang and Delp, Alexander and Freund, Jonathan and Walther, Frank and Haubrich, Jan and Löbbecke, Miriam and Tröster, Thomas}},
issn = {{0021-8464}},
journal = {{The Journal of Adhesion}},
keywords = {{Prepreg pressing process, hybrid joints, laser surface pretreatment, intrinsic manufacturing, CFRP, aluminium, materials engineering}},
pages = {{1--26}},
publisher = {{Informa UK Limited}},
title = {{{Correlation between interlaminar shear strength of CFRP and joint strength of aluminium-CFRP hybrid joints}}},
doi = {{10.1080/00218464.2024.2439956}},
year = {{2025}},
}
@article{62727,
abstract = {{With the increasing amount of data in collaborative engineering research, the need for effective and efficient data management is growing. This paper uses a maturity-based process model to examine the implementation of research data management (RDM) in engineering projects. A process model visualizes a research-supported implementation of RDM and helps researchers evaluate their data management strategies through maturity level assessment. For this approach, activities are assigned to different maturity levels based on a maturity level characteristic providing a differentiated view of the implementation of RDM. An example from an ongoing project shows the application and support of the developed maturity-based process model. The work emphasizes the importance of standardized and quality-assured data management for the success of research projects and their contribution to the scientific community}},
author = {{Wawer, Max Leo and Müller, Laura and Khaled, Jaouhar Ben and Stauß, Timo and Wurst, Johanna and Mozgova, Iryna and Lachmayer, Roland}},
issn = {{2732-527X}},
journal = {{Proceedings of the Design Society}},
pages = {{169--178}},
publisher = {{Cambridge University Press (CUP)}},
title = {{{A maturity based data management integration in engineering research projects}}},
doi = {{10.1017/pds.2025.10031}},
volume = {{5}},
year = {{2025}},
}
@inproceedings{62728,
author = {{Müller, Laura and Hinterthaner, Marc and Ortlieb, Eduard and Mohnfeld, Norman and Schultz, Andreas Maximilian and Uhe, Johanna and Koepler, Oliver and Mozgova, Iryna}},
booktitle = {{IFIP Advances in Information and Communication Technology}},
isbn = {{9783032097033}},
issn = {{1868-4238}},
pages = {{140--150}},
publisher = {{Springer Nature Switzerland}},
title = {{{Getting Things Done: How to Make Simulation Data FAIR and Ready to Reuse}}},
doi = {{10.1007/978-3-032-09704-0_14}},
year = {{2025}},
}
@misc{63716,
author = {{Schultz, Andreas Maximilian and Mozgova, Iryna and Altun, Osman and Karras, Oliver and Koepler, Oliver and Müller, Laura and Nuenberger, Florian and Röwenstrunk, Daniel and Wawer, Max Leo}},
publisher = {{LibreCat University}},
title = {{{Strukturierte FDM-Plattformen: Aktuelle Lösungen und Herausforderungen in Informationsinfrastrukturprojekten}}},
doi = {{10.5281/ZENODO.17670597}},
year = {{2025}},
}
@inbook{64565,
author = {{Yang, Philip}},
booktitle = {{The Elgar Companion to Human Resource Management Beyond the Sustainable Development Goals}},
editor = {{Ina, Aust and Cooke, Fang Lee and Semeijn, Judith}},
isbn = {{9781035308729}},
publisher = {{Edward Elgar Publishing}},
title = {{{Quantitative research on SDGs and HRM}}},
doi = {{10.4337/9781035308729.00038}},
year = {{2025}},
}
@article{64567,
author = {{Ehmann, Stefanie and Kampkötter, Patrick and Maier, Patrick and Yang, Philip}},
issn = {{2195-8262}},
journal = {{Controlling & Management Review}},
number = {{5}},
pages = {{40--45}},
publisher = {{Springer Science and Business Media LLC}},
title = {{{Wie Performance Management das Engagement steigern kann}}},
doi = {{10.1007/s12176-025-1506-4}},
volume = {{69}},
year = {{2025}},
}
@misc{63746,
author = {{Binder, Karin and Vogel, Markus}},
publisher = {{LibreCat University}},
title = {{{Data Literacy im Wissenschaftsjournalismus – Facetten journalistischer Datenkompetenz und Fortbildungsbausteine zu deren Schulung}}},
doi = {{10.18716/OJS/MD/2025.2300}},
year = {{2025}},
}
@misc{63747,
author = {{Rößner, Michael and Binder, Karin and Ufer, Stefan}},
publisher = {{LibreCat University}},
title = {{{Simulationsbasiert Signifikanztests verstehen}}},
doi = {{10.18716/OJS/MD/2025.2296}},
year = {{2025}},
}
@article{64582,
author = {{Brennecken, Dominik}},
issn = {{0019-3577}},
journal = {{Indagationes Mathematicae}},
number = {{6}},
pages = {{1717--1744}},
publisher = {{Elsevier BV}},
title = {{{Boundedness of the Cherednik kernel and its limit transition from type BC to type A}}},
doi = {{10.1016/j.indag.2025.04.004}},
volume = {{36}},
year = {{2025}},
}
@inproceedings{60623,
author = {{Hermelingmeier, Lucas and Teutenberg, Dominik and Meschut, Gerson}},
location = {{Porto, Portugal}},
title = {{{Application of distributed fiber optic sensing for defect detection in adhesive bonds}}},
year = {{2025}},
}
@article{62005,
author = {{Böhm, Yannic and Kappe, Fabian and Han, Daxin and Nordmann, Elmar and Yang, Keke and Jendrny, Jörg and Gorr, Eugen and Meschut, Gerson}},
issn = {{1526-6125}},
journal = {{Journal of Manufacturing Processes}},
pages = {{171--184}},
publisher = {{Elsevier BV}},
title = {{{Single-step self-punching lockbolt process and equipment development for pre-hole-free joining of aluminum sheets using a dual-die system}}},
doi = {{10.1016/j.jmapro.2025.10.027}},
volume = {{155}},
year = {{2025}},
}
@book{63411,
author = {{Meschut, Gerson and Yang, Keke and Rethmeier, Michael and El-Sari, Bassel}},
isbn = {{978-3-96780-219-1}},
title = {{{Entwicklung eines methodischen Ansatzes zur Vermeidung der Spritzerbildung beim Widerstandspunktschweißen durch multiparametrische Prozessanalyse mittels künstlicher Intelligenz}}},
year = {{2025}},
}
@inproceedings{58878,
author = {{Buczek, Moritz and Duffe, Tobias and Kullmer, Gunter and Tews, Karina and Teutenberg, Dominik and Meschut, Gerson}},
booktitle = {{25. Kolloquium: Gemeinsame Forschung in der Klebtechnik}},
location = {{Köln}},
title = {{{Bruchmechanisches Schnittebenenkonzept zur lebensdauergerechten Auslegung von hyperelastischen Klebverbindungen bei multiaxialen und variablen Belastungsamplituden}}},
year = {{2025}},
}
@inproceedings{58843,
author = {{Beule, Felix and Teutenberg, Dominik and Meschut, Gerson}},
booktitle = {{25. Kolloquium: Gemeinsame Forschung in der Klebtechnik}},
location = {{Köln}},
title = {{{Berücksichtigung des Einflusses fertigungsinduzierter Vorverformungen warmaushärtender Klebstoffe auf die Schwingfestigkeit geklebter Verbindungen}}},
year = {{2025}},
}
@inproceedings{58844,
author = {{Schmelzle, Lars and Beule, Felix and Possart, Gunnar and Teutenberg, Dominik and Mergheim, Julia and Meschut, Gerson}},
booktitle = {{25. Kolloquium: Gemeinsame Forschung in der Klebtechnik}},
location = {{Köln}},
title = {{{Methodenentwicklung zur Simulation von hyperelastischen Klebverbindungen unter Crashbelastung}}},
year = {{2025}},
}