@inproceedings{46862,
abstract = {{The high flammability of components manufactured by laser sintering (LS) using standard polyamide 12 (PA12) powder still severely restricts their use in industries such as electronics, aviation, and transportation. A key factor for the further establishment of LS is the expansion of the material portfolio with, for example, refreshable and halogen-free flame-retardant (FR) powder materials. Accordingly, various halogen-free FRs are investigated in this work and evaluated with respect to their use in LS. First, their decomposition behavior and mode of action are examined. Subsequently, the additives are dry blended with PA12 to investigate properties relevant for LS, such as particle morphology, thermal behavior and melt viscosity. Afterwards, test specimens for UL94 vertical flame-retardancy tests are produced by processing the dry blends on an EOS P3 LS system. Finally, the process stability of the process-aged powder blends is investigated by again examining the thermal behavior and melt viscosity.}},
author = {{Neitzel, Fabian and Kletetzka, Ivo and Schmid, Hans-Joachim}},
booktitle = {{Proceedings of the 34th Annual International Solid Freeform Fabrication Symposium}},
editor = {{Beaman, Joseph}},
keywords = {{Additive Manufacturing, Laser Sintering, Flame Retardant, Polyamide 12}},
location = {{Austin}},
title = {{{Halogen-Free Flame Retardant Powder Materials for Laser Sintering: Evaluation and Process Stability Analysis}}},
doi = {{https://doi.org/10.26153/tsw/50926}},
year = {{2023}},
}
@article{53166,
abstract = {{The Knoevenagel reaction is a classic reaction in organic chemistry for the formation of C-C bonds. In this study, various catalytic monomers for Knoevenagel reactions were synthesized and polymerized via photolithography to form polymeric gel dots with a composition of 90% catalyst, 9% gelling agent and 1% crosslinker. Furthermore, these gel dots were inserted into a microfluidic reactor (MFR) and the conversion of the reaction using gel dots as catalysts in the MFR for 8 h at room temperature was studied. The gel dots containing primary amines showed a better conversion of about 83–90% with aliphatic aldehyde and 86–100% with aromatic aldehyde, compared to the tertiary amines (52–59% with aliphatic aldehyde and 77–93% with aromatic aldehydes) which resembles the reactivity of the amines. Moreover, the addition of polar solvent (water) in the reaction mixture and the swelling properties of the gel dots by altering the polymer backbone showed a significant enhancement in the conversion of the reaction, due to the increased accessibility of the catalytic sites in the polymeric network. These results suggested the primary-amine-based catalysts facilitate better conversion compared to tertiary amines and the reaction solvent had a significant influence on organocatalysis to improve the efficiency of MFR.}},
author = {{Killi, Naresh and Bartenbach, Julian and Kuckling, Dirk}},
issn = {{2310-2861}},
journal = {{Gels}},
keywords = {{Knoevenagel reaction, organocatalysis, polymeric gel dots, microfluidic reactions, polymeric networks}},
number = {{3}},
publisher = {{MDPI AG}},
title = {{{Polymeric Networks Containing Amine Derivatives as Organocatalysts for Knoevenagel Reaction within Continuously Driven Microfluidic Reactors}}},
doi = {{10.3390/gels9030171}},
volume = {{9}},
year = {{2023}},
}
@book{51101,
author = {{Werth, Gerda}},
isbn = {{9783658424442}},
issn = {{2661-8591}},
publisher = {{Springer Fachmedien Wiesbaden}},
title = {{{Neue Wege im mathematischen Unterricht: Auf den Spuren Mathilde Vaertings}}},
doi = {{10.1007/978-3-658-42445-9}},
year = {{2023}},
}
@inproceedings{51739,
author = {{Weiß, Deborah and Duffe, Tobias and Buczek, Moritz and Kullmer, Gunter and Schramm, Britta}},
location = {{Berlin}},
publisher = {{Deutscher Verband für Materialforschung und -prüfung e.V.}},
title = {{{Bruchmechanische Untersuchung des Dualphasenstahls HCT590X unter Temperatureinfluss}}},
doi = {{10.48447/WP-2023-244}},
year = {{2023}},
}
@book{52852,
author = {{Janus, Richard}},
isbn = {{978-3-643-15443-9}},
pages = {{142}},
publisher = {{LIT-Verlag}},
title = {{{Inklusion und Religionsunterricht. Einführung in eine heterogenitätssensible Religionspädagogik}}},
volume = {{9}},
year = {{2023}},
}
@article{53801,
abstract = {{In this study, we evaluate the impact of gender-biased data from German-language physician reviews on the fairness of fine-tuned language models. For two different downstream tasks, we use data reported to be gender biased and aggregate it with annotations. First, we propose a new approach to aspect-based sentiment analysis that allows identifying, extracting, and classifying implicit and explicit aspect phrases and their polarity within a single model. The second task we present is grade prediction, where we predict the overall grade of a review on the basis of the review text. For both tasks, we train numerous transformer models and evaluate their performance. The aggregation of sensitive attributes, such as a physician’s gender and migration background, with individual text reviews allows us to measure the performance of the models with respect to these sensitive groups. These group-wise performance measures act as extrinsic bias measures for our downstream tasks. In addition, we translate several gender-specific templates of the intrinsic bias metrics into the German language and evaluate our fine-tuned models. Based on this set of tasks, fine-tuned models, and intrinsic and extrinsic bias measures, we perform correlation analyses between intrinsic and extrinsic bias measures. In terms of sensitive groups and effect sizes, our bias measure results show different directions. Furthermore, correlations between measures of intrinsic and extrinsic bias can be observed in different directions. This leads us to conclude that gender-biased data does not inherently lead to biased models. Other variables, such as template dependency for intrinsic measures and label distribution in the data, must be taken into account as they strongly influence the metric results. Therefore, we suggest that metrics and templates should be chosen according to the given task and the biases to be assessed. }},
author = {{Kersting, Joschka and Maoro, Falk and Geierhos, Michaela}},
issn = {{0169-023X}},
journal = {{Data & Knowledge Engineering}},
keywords = {{Language model fairness, Aspect phrase classification, Grade prediction, Physician reviews}},
publisher = {{Elsevier}},
title = {{{Towards comparable ratings: Exploring bias in German physician reviews}}},
doi = {{10.1016/j.datak.2023.102235}},
volume = {{148}},
year = {{2023}},
}
@misc{54053,
abstract = {{Unmittelbar nach der nationalsozialistischen Machtergreifung setzte eine umfassende gesellschaftliche, juristische und existentielle Ausgrenzung jüdischer Akteure ein. Dem Zerbrechen bisheriger Welt- und Normverständnisse zu begegnen wurde zu einer existentiellen Herausforderung sowie zu einem notwendigen Bedürfnis. Eine wichtige Strategie war der Einsatz von Humor und Ironie; auch für die Menschen des Gettos Litzmannstadt. Aus texthermeneutischer, kulturlinguistischer und sprachphilosophischer Perspektive erfasst Friedrich Markewitz – unter Berücksichtigung des Gettos als Diskursraum und dessen Textsortenwelt – Verwendungsweisen und -funktionen von Ironie und perspektiviert sie, um so einen Beitrag zur linguistischen Aufarbeitung der Kommunikation jüdischer Akteure während der Shoa zu leisten.}},
author = {{Markewitz, Friedrich}},
pages = {{529}},
publisher = {{Vandenhoeck & Ruprecht}},
title = {{{Gegen das Verstummen. Texthermeneutische Reflexionen zu Ironie in der Textsortenwelt des Gettos Litzmannstadt}}},
volume = {{2}},
year = {{2023}},
}
@book{54054,
abstract = {{Die nationalsozialistische Gesellschaft war geprägt von vielgestaltigen kommunikativen Praktiken des sozialen und auch gewaltvollen Ein- und Ausschlusses. Gleichzeitig bildeten sich durch Widerstandshandlungen vielfältige Gegendiskurse heraus. Der Sammelband nimmt konkrete Beispiele kommunikativer Praktiken während des Nationalsozialismus in den Blick und fragt speziell danach, inwiefern diese themen-, textsorten- und akteursspezifisch gebunden waren}},
editor = {{Markewitz, Friedrich and Scholl, Stefan and Schubert, Katrin and Wilk, Nicole M.}},
pages = {{240}},
publisher = {{Vandenhoeck & Ruprecht}},
title = {{{Kommunikative Praktiken im Nationalsozialismus}}},
volume = {{3}},
year = {{2023}},
}
@misc{54389,
author = {{Bürckner, Lorena Marie}},
title = {{{Entwicklung eines Verfahrens zur Probenentnahme aus einem Pulverkuchen im SLS-Prozess}}},
year = {{2023}},
}
@inproceedings{46988,
abstract = {{Extremwettersituationen sind durch die Kombination von globalen und lokalen Wirkzusammenhän-gen gekennzeichnet. In der Gefahrenanalyse und -reaktion ist deshalb der Umgang mit extremen Daten erforderlich, die von heterogenen Datenquellen bezogen und mittels unterschiedlicher Ver-fahren bis hin zum maschinellen Lernen ausgewertet werden. Die Visualisierung dieser zwangsläufig unsicherheitsbehafteten Daten stellt eine Herausforderung dar. Diese wirkt umso bedeutsamer, je weniger Fachexpertise in Bereichen wie Meteorologie, Geologie oder Sensortechnik in einer Füh-rungs- oder Leitstelle eingebunden werden kann. Das Management kritischer Situationen in Echtzeit bei extremen und komplexen Daten muss daher auf einer Bewertung der Informationsqualität von extremen Daten beruhen. Diese Bewertung ist abhängig vom Anwendungskontext in unterschiedli-chen Führungs- und Assistenzstellen sowie der verfügbaren Infrastruktur mit Geräten zur Visualisie-rung, Schnittstellen von Wetterdiensten, Sensorsysteme und Rettungsrobotik. Im Beitrag wird der Ansatz des EU-Projekts CREXDATA in Bezug auf mögliche pluviale Hochwassersituationen in Inns-bruck vorgestellt. Grundlage bildet die Kategorisierung von extremen Daten, die Schnittstellen zu Datenquellen mit globalem und lokalem Bezug sowie Anwendungsfälle für die Visualisierung von Informationen. Es werden somit Grundlagen präsentiert, die in allen Formen von geobasierten Lage- und Führungsinformationssystemen zum Einsatz kommen können.}},
author = {{Pottebaum, Jens and Rechberger, Christina and Hieb, Michael and Gräßler, Iris and Resch, Christian}},
booktitle = {{Tagungsband der Fachtagung Katastrophenforschung 2023}},
isbn = {{978-3-900397-11-1}},
location = {{Leoben}},
pages = {{26--29}},
title = {{{Extremwettersituationen in alpinen Gebieten: Management kritischer Situationen in Echtzeit bei extremen und komplexen Daten}}},
year = {{2023}},
}
@inproceedings{42643,
author = {{Chudalla, Nick and Meschut, Gerson and Schneider, Miriam and Smart, Dominic }},
booktitle = {{23. Kolloquium: Gemeinsame Forschung in der Klebtechnik}},
location = {{Frankfurt a. M.}},
title = {{{Systematisierung einer rechnergestützten Auswertemethode zur Versagensanalyse geklebter Verbindungen}}},
year = {{2023}},
}
@inproceedings{51338,
author = {{Schütte, Jan and Sextro, Walter}},
booktitle = {{20. VDI-Fachtagung Reifen - Fahrwerk - Fahrbahn}},
location = {{Karlsruhe}},
pages = {{165--180}},
publisher = {{VDI Verlag GmbH}},
title = {{{Einfluss der Radhubkinematik auf den Reifenverschleiß}}},
volume = {{2425}},
year = {{2023}},
}
@inproceedings{47299,
author = {{Krause, Alexander and Klemmer, Jan H. and Huaman, Nicolas and Wermke, Dominik and Acar, Yasemin and Fahl, Sascha}},
booktitle = {{32nd USENIX Security Symposium, USENIX Security 2023, Anaheim, CA, USA, August 9-11, 2023}},
editor = {{Calandrino, Joseph A. and Troncoso, Carmela}},
publisher = {{USENIX Association}},
title = {{{Pushed by Accident: A Mixed-Methods Study on Strategies of Handling Secret Information in Source Code Repositories}}},
year = {{2023}},
}
@inproceedings{47301,
author = {{Höltervennhoff, Sandra and Klostermeyer, Philip and Wöhler, Noah and Acar, Yasemin and Fahl, Sascha}},
booktitle = {{32nd USENIX Security Symposium, USENIX Security 2023, Anaheim, CA, USA, August 9-11, 2023}},
editor = {{Calandrino, Joseph A. and Troncoso, Carmela}},
publisher = {{USENIX Association}},
title = {{{"I wouldn’t want my unsafe code to run my pacemaker": An Interview Study on the Use, Comprehension, and Perceived Risks of Unsafe Rust}}},
year = {{2023}},
}
@inproceedings{47298,
author = {{Mink, Jaron and Kaur, Harjot and Schmüser, Juliane and Fahl, Sascha and Acar, Yasemin}},
booktitle = {{32nd USENIX Security Symposium, USENIX Security 2023, Anaheim, CA, USA, August 9-11, 2023}},
editor = {{Calandrino, Joseph A. and Troncoso, Carmela}},
publisher = {{USENIX Association}},
title = {{{"Security is not my field, I’m a stats guy": A Qualitative Root Cause Analysis of Barriers to Adversarial Machine Learning Defenses in Industry}}},
year = {{2023}},
}
@inproceedings{47300,
author = {{Kohno, Tadayoshi and Acar, Yasemin and Loh, Wulf}},
booktitle = {{32nd USENIX Security Symposium, USENIX Security 2023, Anaheim, CA, USA, August 9-11, 2023}},
editor = {{Calandrino, Joseph A. and Troncoso, Carmela}},
publisher = {{USENIX Association}},
title = {{{Ethical Frameworks and Computer Security Trolley Problems: Foundations for Conversations}}},
year = {{2023}},
}
@inbook{35151,
author = {{Fuchs, Christian}},
booktitle = {{Soziale Ordnungen des Sterbens: Theorie, Methodik und Einblicke in die Vergänglichkeit}},
editor = {{Schönefeld, Daniel and von Gahlen-Hoops, Wolfgang}},
isbn = {{978-3-8394-6154-9}},
pages = {{75--102}},
publisher = {{transcript}},
title = {{{Der Tod und die Liebe: Die Metaphysik der Kommunikation}}},
year = {{2023}},
}
@article{53785,
abstract = {{AbstractDue to the lockdown of schools as one of the COVID-19 control measures, adolescents have had the opportunity to re-organise their daily lives; e.g. some of them have adapted their bedtimes to the new situation during the lockdown in favour of their own chronotype. Hence, we investigated differences in chronobiological characteristics (e.g., the midpoint of sleep, sleep duration or social jetlag (SJL); i.e., a discrepancy between biological and social timing) before and during the pandemic lockdown to examine potential changes. We asked participants from the ongoing open cohort Dortmund Nutritional and Anthropometric Longitudinally Designed (DONALD) study to fill out the Munich Chronotype Questionnaire during the COVID-19 lockdown and received the information of participants (n = 66) during the pandemic. A reference group matched for age, season, and sex was randomly selected from the DONALD study to assess participants’ chronobiological characteristics prior to (n = 132) the pandemic. Analyses of covariance were applied to examine differences between the two groups reflecting the situation before and during the COVID-19 pandemic. Participants were aged 9–18 years (52% males). In the current examination, average sleep duration across the week was higher among adolescents during the pandemic (β = 00:30; p = 0.0006) and social jetlag was significantly lower (β = −00:39; p < 0.0001). Conclusion: Our results showed that the COVID-19 lockdown enabled adolescents to adapt their sleeping habits according to their naturally late chronotype, which led to a significant reduction in SJL. These observations are likely to be explained by the effect of school closure.
What is Known:• Under ‘normal conditions’ without pandemic lockdowns, adolescents accumulate a lack of sleep due to social obligations such as school starts, resulting in social jetlag.• A late chronotype or exposure to social jetlag is a known risk factor for the development of chronic diseases.
What is New:• The COVID-19 lockdown represents a ‘natural experiment’ that enables adolescents to adhere to their internal biological clock. Without the usual social obligations, social jetlag can be significantly reduced.
}},
author = {{Perrar, Ines and Alexy, Ute and Jankovic, Nicole}},
issn = {{1432-1076}},
journal = {{European Journal of Pediatrics}},
number = {{6}},
pages = {{2801--2805}},
publisher = {{Springer Science and Business Media LLC}},
title = {{{Chronobiological changes due to school closures during the COVID-19 pandemic among adolescents in the DOrtmund Nutritional and Anthropometric Longitudinally Designed cohort study}}},
doi = {{10.1007/s00431-023-04963-9}},
volume = {{182}},
year = {{2023}},
}
@book{45863,
abstract = {{In the proposal for our CRC in 2011, we formulated a vision of markets for
IT services that describes an approach to the provision of such services
that was novel at that time and, to a large extent, remains so today:
„Our vision of on-the-fly computing is that of IT services individually and
automatically configured and brought to execution from flexibly combinable
services traded on markets. At the same time, we aim at organizing
markets whose participants maintain a lively market of services through
appropriate entrepreneurial actions.“
Over the last 12 years, we have developed methods and techniques to
address problems critical to the convenient, efficient, and secure use of
on-the-fly computing. Among other things, we have made the description
of services more convenient by allowing natural language input,
increased the quality of configured services through (natural language)
interaction and more efficient configuration processes and analysis
procedures, made the quality of (the products of) providers in the
marketplace transparent through reputation systems, and increased the
resource efficiency of execution through reconfigurable heterogeneous
computing nodes and an integrated treatment of service description and
configuration. We have also developed network infrastructures that have
a high degree of adaptivity, scalability, efficiency, and reliability, and
provide cryptographic guarantees of anonymity and security for market
participants and their products and services.
To demonstrate the pervasiveness of the OTF computing approach, we
have implemented a proof-of-concept for OTF computing that can run
typical scenarios of an OTF market. We illustrated the approach using
a cutting-edge application scenario – automated machine learning (AutoML).
Finally, we have been pushing our work for the perpetuation of
On-The-Fly Computing beyond the SFB and sharing the expertise gained
in the SFB in events with industry partners as well as transfer projects.
This work required a broad spectrum of expertise. Computer scientists
and economists with research interests such as computer networks and
distributed algorithms, security and cryptography, software engineering
and verification, configuration and machine learning, computer engineering
and HPC, microeconomics and game theory, business informatics
and management have successfully collaborated here.}},
author = {{Haake, Claus-Jochen and Meyer auf der Heide, Friedhelm and Platzner, Marco and Wachsmuth, Henning and Wehrheim, Heike}},
pages = {{247}},
publisher = {{Heinz Nixdorf Institut, Universität Paderborn}},
title = {{{On-The-Fly Computing -- Individualized IT-services in dynamic markets}}},
doi = {{10.17619/UNIPB/1-1797}},
volume = {{412}},
year = {{2023}},
}
@phdthesis{42344,
author = {{Rüddenklau, Nico}},
title = {{{Hardware-in-the-Loop-Simulation von HD-Scheinwerfer-Steuergeräten zur Entwicklung von Lichtfunktionen in virtuellen Nachtfahrten}}},
year = {{2023}},
}