@inproceedings{66958,
  author       = {{Cachin, Christian and Dou, Jinfeng and Scheideler, Christian and Schneider, Philipp}},
  title        = {{{A Lightweight Approach for State Machine Replication}}},
  doi          = {{10.1007/978-3-032-26465-7_8}},
  year         = {{2026}},
}

@article{66959,
  author       = {{Ozeki, Ren and Rihan, Mohamed and Rizk, Hamada and Matthiesen, Bho and Dekorsy, Armin and Yamaguchi, Hirozumi}},
  issn         = {{2644-125X}},
  journal      = {{IEEE Open Journal of the Communications Society}},
  pages        = {{8056--8072}},
  publisher    = {{Institute of Electrical and Electronics Engineers (IEEE)}},
  title        = {{{Clustered Federated Learning With Contrastive Loss and Staleness-Aware Aggregation for LEO Satellite Constellations}}},
  doi          = {{10.1109/ojcoms.2026.3712413}},
  volume       = {{7}},
  year         = {{2026}},
}

@article{66960,
  author       = {{Razmi, Nasrin and Matthiesen, Bho and Teodorescu, Remus and Dekorsy, Armin and Popovski, Petar}},
  issn         = {{2169-3536}},
  journal      = {{IEEE Access}},
  pages        = {{13025--13040}},
  publisher    = {{Institute of Electrical and Electronics Engineers (IEEE)}},
  title        = {{{Satellite Battery Lifetime Extension via Scheduling of Onboard Computing and Energy Harvesting}}},
  doi          = {{10.1109/access.2026.3656399}},
  volume       = {{14}},
  year         = {{2026}},
}

@inproceedings{67019,
  abstract     = {{<jats:p>In order to make rail transportation more attractive compared to motorized private transport, intelligent solutions are required across the entire mobility chain. Train stations, as places of connection and transfer, offer the greatest potential in this context. Thus, the deployment of autonomous service robots at train stations offers a wide range of possibilities for supporting passengers on their journeys by rail, for example, by providing information, accompanying them to the next link in the mobility chain, or transporting their luggage. Since such robots are battery-powered, one challenge is to carefully plan activities based on the remaining battery capacity. Therefore, the aim of this work is to predict battery usage and, in turn, battery state, in order to inform passengers, and to enable intelligent planning of its usage.In this work, realistic operational conditions of a service robot are systematically assessed through measurements on the service robot itself and through passenger surveys at a train station. The estimated operational conditions are experimentally replicated to simulate the heterogeneous use of the battery pack, while acquiring condition monitoring data throughout its use. The battery pack is modeled based on the single particle model, which can robustly predict the battery state by simulating its usage considering past operational conditions. The approach is validated using experimental data obtained from simulating realistic usage. On the one hand, additional battery packs are employed, and on the other hand, the load is varied. The advantage of this approach lies in the ability to account for future changes, such as higher loads than anticipated, to provide robust predictions.This enables the intelligent use of service robots, offering passengers an improved service experience at train stations.</jats:p>}},
  author       = {{Löwen, Alexander and Aleman-Gallegos, Enrique and Aimiyekagbon, Osarenren and Wachsmuth, Sven and Sextro, Walter}},
  booktitle    = {{PHM Society European Conference}},
  issn         = {{2325-016X}},
  location     = {{Oslo}},
  number       = {{1}},
  pages        = {{1--10}},
  publisher    = {{PHM Society}},
  title        = {{{Prediction and simulation of battery pack usage for intelligent service robot deployment at a train station}}},
  doi          = {{10.36001/phme.2026.v9i1.4952}},
  volume       = {{9}},
  year         = {{2026}},
}

@inproceedings{67030,
  author       = {{Irebor, Jermaine}},
  location     = {{Berlin}},
  number       = {{26}},
  publisher    = {{Gemeinschaftswerk der Evangelischen Publizistik (GEP)}},
  title        = {{{Machtverschiebungen denken und unterrichten: Black Theologies und Religionspädagogik im Dialog}}},
  volume       = {{27}},
  year         = {{2026}},
}

@inproceedings{56950,
  abstract     = {{After nearly two decades of research, the question of a quantum PCP theorem
for quantum Constraint Satisfaction Problems (CSPs) remains wide open. As a
result, proving QMA-hardness of approximation for ground state energy
estimation has remained elusive. Recently, it was shown [Bittel, Gharibian,
Kliesch, CCC 2023] that a natural problem involving variational quantum
circuits is QCMA-hard to approximate within ratio N^(1-eps) for any eps > 0 and
N the input size. Unfortunately, this problem was not related to quantum CSPs,
leaving the question of hardness of approximation for quantum CSPs open. In
this work, we show that if instead of focusing on ground state energies, one
considers computing properties of the ground space, QCMA-hardness of computing
ground space properties can be shown. In particular, we show that it is (1)
QCMA-complete within ratio N^(1-eps) to approximate the Ground State
Connectivity problem (GSCON), and (2) QCMA-hard within the same ratio to
estimate the amount of entanglement of a local Hamiltonian's ground state,
denoted Ground State Entanglement (GSE). As a bonus, a simplification of our
construction yields NP-completeness of approximation for a natural k-SAT
reconfiguration problem, to be contrasted with the recent PCP-based PSPACE
hardness of approximation results for a different definition of k-SAT
reconfiguration [Karthik C.S. and Manurangsi, 2023, and Hirahara, Ohsaka, STOC
2024].}},
  author       = {{Gharibian, Sevag and Hecht, Carsten}},
  booktitle    = {{51st International Symposium on Mathematical Foundations of Computer Science (MFCS)}},
  number       = {{48}},
  pages        = {{1--19}},
  title        = {{{Hardness of approximation for ground state problems}}},
  volume       = {{386}},
  year         = {{2026}},
}

@inproceedings{67069,
  author       = {{Adler, Enno and Böttcher, Stefan and Hartel, Rita Juliane}},
  booktitle    = {{Data Compression Conference, DCC 2026, Snowbird, UT, USA, March 24-27, 2026}},
  pages        = {{113–122}},
  publisher    = {{IEEE}},
  title        = {{{Compressing Hypergraphs using Suffix Sorting}}},
  doi          = {{10.1109/DCC66757.2026.00019}},
  year         = {{2026}},
}

@inproceedings{67068,
  author       = {{Adler, Enno and Böttcher, Stefan and Hartel, Rita}},
  booktitle    = {{Data Compression Conference, DCC 2026, Snowbird, UT, USA, March 24-27, 2026}},
  pages        = {{113–122}},
  publisher    = {{IEEE}},
  title        = {{{Compressing Hypergraphs using Suffix Sorting}}},
  doi          = {{10.1109/DCC66757.2026.00019}},
  year         = {{2026}},
}

@article{67134,
  abstract     = {{<jats:p>Diffractive neural networks (DNNs) are an emerging approach for the realization of photonic artificial intelligence, especially due to their suitability for machine-vision applications and high-dimensional photonic information processing at lower power consumption. However, incorporating optical nonlinear activation functions to make DNNs a feasible alternative to their electronic counterpart remains a challenge. Here, we investigate the inclusion of second-harmonic generation (SHG), as one of the simplest and most efficient types of optical nonlinearities, in DNNs. We numerically investigate the impact of SHG on the performance of classification tasks in an all-optical nonlinear DNN. Specifically, we investigate and discuss the essential requirements for an effective arrangement of a SHG activation in single and multilayer DNNs. We find that the performance, in terms of classification accuracy and class contrast, is affected strongly by the positioning of the SHG activation. Finally, we discuss and outline the constraints for including SHG in an experimental realization. Taking these constraints into account, we estimate the power-related efficiency of the nonlinear DNN system. Overall, our results provide a path towards implementing nonlinear DNNs using the SHG process.</jats:p>}},
  author       = {{Braasch, M. and Kartashova, A. and Krasikov, S. and Goi, E. and Pertsch, T. and Saravi, S.}},
  issn         = {{1094-4087}},
  journal      = {{Optics Express}},
  number       = {{19}},
  publisher    = {{Optica Publishing Group}},
  title        = {{{Second-harmonic generation for enhancing the performance of diffractive neural networks}}},
  doi          = {{10.1364/oe.592467}},
  volume       = {{34}},
  year         = {{2026}},
}

@article{67133,
  abstract     = {{<jats:p>We investigated the spectral properties of squeezed light generated via parametric down-conversion in the high-gain regime, considering both unapodized and apodized dispersion-engineered waveguides. The gain-dependent evolution of these states is examined starting from the low-gain regime, which includes both highly correlated and nearly uncorrelated cases. For the unapodized configuration, our simulated results show a monotonic increase in spectral purity with gain, whereas for some of the apodized configuration, they exhibit a nonmonotonic dependence, initially decreasing and then recovering at higher gain. By combining Schmidt-mode analysis with a group-velocity-based interpretation, we explain why different dispersion conditions exhibit distinct gain-dependent behavior, specifically that rapid purification occurs when the pump group velocity lies between those of the signal and idler. Our study shows that the evolution of spectral purity is governed primarily by the underlying dispersion of the waveguide. These results demonstrate that dispersion engineering and parametric gain can be jointly exploited to tailor the spectral-mode structure of squeezed-light sources, enabling their optimization for a broad range of quantum applications.</jats:p>}},
  author       = {{Kumar, Jatin and Krstić, Aleksa and Saravi, Sina and Setzpfandt, Frank}},
  issn         = {{2469-9926}},
  journal      = {{Physical Review A}},
  number       = {{2}},
  publisher    = {{American Physical Society (APS)}},
  title        = {{{Toward spectral engineering of squeezed light in high-gain parametric down-conversion}}},
  doi          = {{10.1103/2hth-yy33}},
  volume       = {{114}},
  year         = {{2026}},
}

@techreport{67148,
  abstract     = {{Laser Powder Bed Fusion (PBF-LB/M) enables significant performance enhancements in tool and mold making via the integration of complex, conformal cooling channels. However, high manufacturing costs of monolithic components and material-specific defect susceptibility still hinder widespread industrial adoption. Within the collaborative project WerKo3D, the scaling, process qualification, and structural design of the novel tool steel Printium 13 were successfully investigated to lower market entry barriers for additive tooling applications. An industrial batch of 50 kg of Printium 13 powder was produced via vacuum inert gas atomization and thoroughly characterized. Utilizing a Design of Experiments (DoE) approach on an SLM 280 system, an optimized process window was established, yielding a relative density of about 99.99%. Subsequent heat treatment parameterizations revealed a superior mechanical property profile combining high hardness with enhanced impact toughness compared to conventional AISI H13 tool steel, alongside ultimate tensile strengths up to 1,600 MPa. To reduce build times and material consumption, a segmented shell-core tool design was conceptualized and numerically optimized via coupled CFD and FEM simulations. The functional demonstrator - a sprue insert for aluminum die casting - was additively manufactured without cracking, heat-treated, and finish-machined to final dimensions. Furthermore, a two-day training and knowledge-transfer program was realized to disseminate design guidelines to industry stakeholders. The findings validate the complete process chain from powder atomization to crack-free hybrid tool manufacturing.}},
  author       = {{Marten, Thorsten and Hengsbach, Florian and Jungeilges, André}},
  pages        = {{25}},
  publisher    = {{Hannover : Technische Informationsbibliothek}},
  title        = {{{Werkzeugbau-Revolution mittels innovativem Konstruktionsdesign und neuartigem Werkzeugstahl für den 3D-Druck (WerKo3D)}}},
  year         = {{2026}},
}

@article{67146,
  abstract     = {{<jats:p>
                    High-harmonic generation in solids enables probing of strong-field electron dynamics in condensed matter and the development of compact ultrafast light sources. Whereas most studies have focused on above-bandgap high-order harmonics, which are usually interpreted through short electron-hole trajectories that recombine within one optical cycle, the microscopic origin of low-order emission near the bandgap remains poorly understood. Here, we investigate near-bandgap harmonic generation in ZnO by combining semiconductor Bloch equations with a complex-time quantum-trajectory analysis. Our results indicate that these harmonics are not a continuation of the short trajectory. Rather, they originate from multiple-scattering trajectories, in which the electron-hole pair undergoes repeated Bragg scattering at the Brillouin-zone boundary and electron-hole reencounter near the
                    <a:math xmlns:a="http://www.w3.org/1998/Math/MathML">
                      <a:mi mathvariant="normal">Γ</a:mi>
                    </a:math>
                    point before the actual recombination occurs. We identify that the imaginary part of the electron-hole displacement provides a practical diagnostic of the residual tunneling memory. Real-space electron-hole overlap alone does not imply coherent recombination unless the full complex displacement vanishes. These results clarify the microscopic picture of near-bandgap harmonic emission in ZnO and offer a framework for interpreting phase-resolved strong-field dynamics in solids.
                  </jats:p>}},
  author       = {{Huo, Xunqin and Liu, Xiwang and Yang, Shidong and Song, Xiaohong and Meier, Torsten and Yang, Weifeng}},
  issn         = {{2643-1564}},
  journal      = {{Physical Review Research}},
  number       = {{3}},
  publisher    = {{American Physical Society (APS)}},
  title        = {{{Near-bandgap harmonic generation in solids from multiple scattering revealed by complex quantum trajectories}}},
  doi          = {{10.1103/l939-jglf}},
  volume       = {{8}},
  year         = {{2026}},
}

@book{67145,
  abstract     = {{Inklusion ist ein menschenrechtlich gebotenes Ziel und eine gesamtgesellschaftliche Aufgabe, mit der sich u.a. Akteur*innen in pädagogischen Handlungsfeldern und Institutionen sowie in der empirischen Bildungsforschung befassen. 
Dieser Band ist aus dem vom Bundesministerium für Bildung, Familie, Senioren, Frauen und Jugend geförderten Projekt Paderborner Perspektiven auf Inklusion – interdisziplinär, diskursiv, praxisbezogen – Kolloquium, Kolleg, Kamingespräche (PPIK) heraus entstanden. Die Beiträge aus Fachdidaktik, Erziehungswissenschaft, Psychologie, Schul-, Inklusions- und Sonderpädagogik blicken aus verschiedenen Perspektiven auf Strukturen, Kulturen und Praktiken von Inklusion und deren Umsetzung. Sie zeigen, wie interdisziplinäre Forschung, Kooperation und Reflexion zur Professionalisierung von (zukünftigen) Lehrkräften und Wissenschaftler*innen beitragen kann.
Es handelt sich um den dritten Band der Reihe Paderborner Beiträge zur Bildungsforschung und Lehrkräftebildung, die von der PLAZ – Professional School of Education herausgegeben wird.}},
  editor       = {{Häsel-Weide, Uta and Kottmann, Brigitte and Aschhoff-Hartmann, Stefanie and Neumann, Phillip and Tenberge, Claudia}},
  isbn         = {{9783818801267}},
  publisher    = {{Waxmann Verlag GmbH}},
  title        = {{{Perspektiven auf Inklusion im interdisziplinären Diskurs}}},
  doi          = {{10.31244/9783818851262}},
  year         = {{2026}},
}

@unpublished{67147,
  abstract     = {{We introduce the non-symmetric heat and Poisson semigroups associated with the Heckman-Opdam Laplacian in the compact setting. Based on the Poisson semigroup, we study several Littlewood-Paley $g$-functions in the spirit of Stein's work for compact Lie groups and prove their $L^{p}$-boundedness for $1<p<\infty$. As an application, we define associated Riesz transforms and Riesz potentials and prove their $L^{p}$-continuity for $1<p<\infty$. 
  Passing to the average with respect to the action of the associated reflection group, our framework in particular covers the Littlewood-Paley-Stein theory for Jacobi polynomial expansions and corresponding direct product settings as special cases.}},
  author       = {{Langen, Lukas and Rösler, Margit}},
  booktitle    = {{arXiv:2609.12722}},
  pages        = {{29}},
  title        = {{{Littlewood-Paley Theory For Orthogonal Expansions Associated With Root Systems}}},
  year         = {{2026}},
}

@unpublished{66550,
  abstract     = {{For an arbitrary reduced root system, we give upper bounds for the Dunkl kernel with regular spectral parameter and its derivatives, which are uniform in the spatial variable. These estimates generalize well-known sharp upper bounds for classical one-variable Bessel functions and for spherical functions of Cartan motion groups. As a consequence, we prove that the representing measure of Dunkl's intertwining operator is absolutely continuous with respect to the Lebesgue measure for multiplicities $k> 1/2$ and generic spectral parameter. This settles a conjecture posed in [RdJ02] at least for $k>1/2$.}},
  author       = {{Langen, Lukas}},
  booktitle    = {{arXiv:2607.02176}},
  pages        = {{31}},
  title        = {{{Uniform bounds on the Dunkl kernel}}},
  year         = {{2026}},
}

@inbook{66853,
  abstract     = {{<jats:p>In diesem Band werden übergreifende Themen des digital gestützten MINT-Unterrichts diskutiert: allgemeine Grundlagen zur Lehrkräfteprofessionalisierung für die digitale Transformation, deren Herausforderungen und Gelingensbedingungen sowie professionelles Handeln in einer Kultur der Digitalität. Ein weiterer Schwerpunkt sind digitale Lernumgebungen und Technologien für den MINT-Unterricht, inklusive Überlegungen zur Infrastruktur und konkreten Umsetzung im schulischen Alltag. Ergänzend werden Befunde zur Forschung und Evaluation von digital gestützten Fortbildungsformaten für den MINT-Unterricht dargestellt. 
Übergreifende Themen zur Professionalisierung digital gestützten MINT-Unterrichts finden sich in Band 1. 
Konkrete Fortbildungskonzepte des MINT-Bereichs werden in Band 2 vorgestellt. 

Der Band ist Teil der Reihe „Digitale Transformation von Schule und Fortbildung gestalten im Kompetenzverbund lernen:digital“, welche die Ergebnisse der Förderlinie „Kompetenzzentren für digitales und digital gestütztes Unterrichten in Schule und Weiterbildung“ (2023–2026) dokumentiert.</jats:p>}},
  author       = {{Crummenerl, Lena Luise and Wenzel, Annkathrin and Franzen, Katja and Sieffert, Annika and Vüllers, Marie-Sophie and Blumberg, Eva}},
  booktitle    = {{Professionelles Handeln in einer Kultur der Digitalität}},
  editor       = {{Scheiter, Katharina and Richter, Dirk and Pittich, Daniel and Halbrock, Lara}},
  isbn         = {{9783818801502}},
  keywords     = {{Lehrkräftefortbildung, digitale Medien, naturwissenschaftlicher Sachunterricht}},
  pages        = {{697--711}},
  publisher    = {{Waxmann Verlag GmbH}},
  title        = {{{Konzeption und erste Evaluationsergebnisse einer Lehrkräftefortbildung zum unterstützenden Einsatz digitaler Medien im naturwissenschaftlich-technischen Sachunterricht der Grundschule unter Einbezug des außerschulischen Lernortes Schüler:innenlabor}}},
  doi          = {{10.31244/9783818851507}},
  volume       = {{Teilband 2}},
  year         = {{2026}},
}

@inbook{67151,
  author       = {{Crummenerl, Lena Luise and Blumberg, Eva}},
  booktitle    = {{Vorstellungen von Kindern zu Themenfeldern der Nachhaltigkeit}},
  editor       = {{Beudels, Melanie and Henrichwark, Claudia}},
  isbn         = {{978-3-7815-2792-8}},
  keywords     = {{Außerschulische Lernorte, BNE, Interesse, Qualitative Inhaltsanalyse, Sachunterricht}},
  pages        = {{191--205}},
  publisher    = {{Klinkhardt}},
  title        = {{{„Wasser ist kostbar und wir haben nicht unendlich viel davon.“ – Interessen und Vorstellungen von Grundschulkindern zum ressourcenschonenden Umgang mit Wasser und dem Potenzial außerschulischer Lernorte}}},
  year         = {{2026}},
}

@inproceedings{67149,
  author       = {{Fudali, Fabian and Skvorc, Urban and Grimme, Christian and Bossek, Jakob}},
  booktitle    = {{Proceedings of the Genetic and Evolutionary Computation Conference Companion, GECCO 2026, Centro Internacional de Convenciones CIC-ANDE, San Jose, Costa Rica, July 13-17, 2026}},
  editor       = {{Trujillo, Leonardo and Hu, Ting}},
  pages        = {{1619–1622}},
  publisher    = {{ACM}},
  title        = {{{Inexact Sorting in the USGS Operator for the Bi-Objective Minimum Spanning Tree Problem}}},
  doi          = {{10.1145/3795101.3814667}},
  year         = {{2026}},
}

@article{67152,
  author       = {{Fuchs, Christian}},
  journal      = {{Thesis Eleven}},
  title        = {{{The Toxic Schema: How Nick Land’s Dark Enlightenment Works. }}},
  doi          = {{10.1177/07255136261487456 }},
  year         = {{2026}},
}

@inproceedings{67174,
  abstract     = {{Approval of products in safety-sensitive areas, such as medical technology, requires considerable effort. Companies must comply with numerous regulations for such product approvals. This results in requirements for processes, methods, tools and organizations throughout the product life cycle. A proven approach to handling regulatory requirements is the application of product lifecycle management (PLM) platforms. Applying PLM platforms (e.g. Teamcenter, 3DExperience) poses challenges in designing compliant processes as well as adapting methods and tools. For example, in medical technology, ISO 13485 specifies an industry-specific product engineering process. The exemplary adaptations of requirements engineering methods and related support – e.g. MBSE including Requirements Diagrams – are not intuitively apparent. Existing literature primarily regards these regulation-related challenges as boundary conditions, offering only vague operational solutions. Companies struggle to align PLM processes with regulatory requirements, yet few methods exist to support this integration. In this paper, a method is proposed that supports the application of regulation-centered PLM platforms and reduces effort in product approvals. The method is developed by applying a five-step approach. Existing literature on process models for applying PLM platforms is identified (1). The identified approaches are then analyzed to determine whether and to what extent they consider regulations in applying PLM platforms (2). Based on identified partial solutions from literature and findings from industry workshops, a new method is developed (3). The method comprises strategic level, process level, data level, pilot level, and operation level. Validation is conducted within a German medical technology company, containing proof of applicability determined through a pilot project (4) and proof of concept achieved through interviews (5). The method is applied to regulation-centered PLM for the use case ‘requirements engineering’. The concept is confirmed by experts in terms of applicability and transferability. The method supports engineers in applying regulation-centered PLM platforms, leading to reduced effort.}},
  author       = {{Gräßler, Iris and Pfeifer, Jan Niklas and Trost, Denis}},
  booktitle    = {{INCOSE International Symposium}},
  issn         = {{2334-5837}},
  keywords     = {{Regulations, Product Lifecycle Management, Requirements Engineering, Model-Based Systems Engineering, medical technology}},
  location     = {{Yokohma, Japan}},
  number       = {{1}},
  pages        = {{1641 -- 1655}},
  publisher    = {{Wiley}},
  title        = {{{RegPLM – A method for the application of regulation-centered PLM platforms}}},
  doi          = {{https://doi.org/10.1002/iis2.70264}},
  volume       = {{36}},
  year         = {{2026}},
}