@phdthesis{59908, author = {{Gevers, Karina}}, isbn = {{978-3-8440-9978-2 }}, keywords = {{Infrarotschweißen, Zeitfestigkeit, Polyamide}}, pages = {{216}}, publisher = {{Shaker Verlag}}, title = {{{Zeitfestigkeit von infrarotgeschweißten gefüllten Polyamiden }}}, year = {{2025}}, } @inbook{56142, author = {{Schulze-Uludasdemir, Johanna and Niemann, Jan}}, booktitle = {{Data - Culture - Society. Komplexe Transformationen verstehen und gestalten}}, editor = {{Uppenkamp, V. and Vösgen-Nordloh, M.}}, isbn = {{978-3-534-64166-6}}, pages = {{127--154}}, publisher = {{Verlag wbg}}, title = {{{„Wir [haben] uns da auf eine Form eingegroovt…“ – Gestaltung einer Community of Practice zur Begegnung digitaler Transformationsprozesse in der Lehrkräftebildung. In Interdisziplinäre Studien des Paderborner Graduiertenzentrums für Kulturwissenschaften (Band 2)}}}, year = {{2025}}, } @inbook{59881, author = {{Lehberger, Regine}}, booktitle = {{Transdisziplinäre Räume in den Kulturwissenschaften}}, editor = {{Kornbach, Alina and Lammer, Christina and Magdeburg, Lena}}, pages = {{291--309}}, publisher = {{Herder}}, title = {{{Transdisziplinäre Aspekte bei der ­ Gestaltung von Lernräumen in ­ einer Kultur der Digitalität}}}, volume = {{3}}, year = {{2025}}, } @article{58613, abstract = {{Self-assembled DNA origami lattices on silicon oxide surfaces have great potential to serve as masks in molecular lithography. However, silicon oxide surfaces come in many different forms and the type and history of the silicon oxide has a large effect on its physicochemical surface properties. Therefore, we here investigate DNA origami lattice formation on differently fabricated SiOx films on silicon wafers after wet-chemical oxidation by RCA1. Despite having similar oxide compositions and hydroxylation states, of all surfaces tested, only thermally grown SiOx performs similarly well as native oxide. For the other SiOx films deposited by plasma-enhanced chemical vapor deposition and magnetron sputtering, DNA origami adsorption is strongly suppressed. This is attributed to an increased surface roughness and a lower oxide density, respectively. Our results demonstrate that the employed SiOx surface may decide over the outcome of an experiment and should be considered as an additional parameter that may require optimization and fine-tuning before high-quality lattices can be assembled. In particular, our observations suggest that efficient DNA origami lattice assembly on SiOx surfaces requires a low surface roughness and a high oxide density.}}, author = {{Pothineni, Bhanu Kiran and Theile-Rasche, Chantal and Müller, Hendrik and Grundmeier, Guido and de los Arcos de Pedro, Maria Teresa and Keller, Adrian}}, journal = {{Chemistry – A European Journal}}, pages = {{e202404108}}, title = {{{DNA Origami Adsorption and Lattice Formation on Different SiOx Surfaces}}}, doi = {{10.1002/chem.202404108}}, year = {{2025}}, } @article{60082, author = {{Keller, Adrian}}, journal = {{Nucleic Acid Insights}}, number = {{2}}, pages = {{61–75}}, title = {{{DNA origami nanostructures in biomedicine and the issue of stability}}}, doi = {{10.18609/nuc.2025.011}}, volume = {{2}}, year = {{2025}}, } @article{60180, author = {{Kranz, RM and Kettler, C and Anand, C and Koeder, C and Husain, S and Schoch, N and Buyken, Anette and Englert, H}}, issn = {{0260-1060}}, journal = {{Nutr Health}}, number = {{1}}, pages = {{175--186}}, title = {{{Effect of a controlled lifestyle intervention on medication use and costs: The Healthy Lifestyle Community Program (cohort 2).}}}, volume = {{31}}, year = {{2025}}, } @unpublished{63602, abstract = {{We show that, on a smoothly paracompact convenient manifold $M$ modeled on a convenient space with the bornological approximation property, the dual map of a Poisson bracket factors as a smooth section of the vector bundle $L_{skew}^2(T^*M,\mathbb R)$.}}, author = {{Michor, P. W. and Rahangdale, Praful}}, title = {{{Poisson bivectors on infinite dimensional manifolds}}}, year = {{2025}}, } @unpublished{63644, abstract = {{We study the ultraviolet problem for models of a finite-dimensional quantum mechanical system linearly coupled to a bosonic quantum field, such as the (many-)spin boson model or its rotating-wave approximation. If the state change of the system upon emission or absorption of a boson is either given by a normal matrix or by a 2-nilpotent one, which is the case for the previously named examples, we prove an optimal renormalization result. We complement it, by proving the norm resolvent convergence of appropriately regularized models to the renormalized one. Our method consists of a dressing transformation argument in the normal case and an appropriate interior boundary condition for the 2-nilpotent case.}}, author = {{Hinrichs, Benjamin and Lampart, Jonas and Valentín Martín, Javier}}, booktitle = {{arXiv:2502.04876}}, title = {{{Ultraviolet Renormalization of Spin Boson Models I. Normal and 2-Nilpotent Interactions}}}, year = {{2025}}, } @inproceedings{62814, abstract = {{Porous carbons are prominent electrode materials in energy storage applications such as supercapacitors. However, rational materials development is hampered by difficulties in interpreting electrochemical impedance spectra (EIS) and drawing conclusions about promising aspects of device improvement. Here, we characterized electrodes consisting of activated carbon with polyacrylic acid binder in four different concentrations of sulfuric acid, using cyclic voltammetry and electrochemical impedance spectroscopy. Both datasets were evaluated with simple equivalent circuits and comparatively analyzed. Conductivity of the electrolyte was independently measured. Cyclic voltammograms (CV) show larger resistance and capacitance at low scan rates. Resistances obtained from EIS are in good agreement with those obtained by cyclic voltammograms particularly at high scan rates. The comparison against specific electrolyte resistance can reveal whether resistances within the solid electrode architecture or resistances within the electrolyte, partially confined by pores, are the dominant cause of increased resistance at low scan rate. Comparison between CV and EIS points to the main electrode capacitance being described by a constant phase element (CPE) used to fit the low-frequency region of EIS.}}, author = {{Reinke, Sebastian and Khamitsevich, Vera and Linnemann, Julia}}, booktitle = {{2024 International Workshop on Impedance Spectroscopy (IWIS)}}, keywords = {{electrochemical impedance spectroscopy, distorted cyclic voltammograms, supercapacitors, carbon}}, publisher = {{IEEE}}, title = {{{Complementary Analysis of Cyclic Voltammograms and Impedance Spectra of Porous Carbon Electrodes}}}, doi = {{10.1109/iwis63047.2024.10847115}}, year = {{2025}}, } @article{63660, abstract = {{Adiabatic demagnetization refrigeration (ADR) is regaining relevance for refrigeration to temperatures below 1 K as global helium-3 supply is increasingly strained. While ADR at these temperatures is long established with paramagnetic hydrated salts, more recently, frustrated rare-earth oxides were found to offer higher entropy densities and practical advantages, since they do not degrade under heating or evacuation. We report structural, magnetic, and thermodynamic properties of the rare-earth borates Ba3XB9O18 and Ba3XB3O9 with X = (Yb, Gd). Except for Ba3GdB9O18, which orders at 108 mK, the three other materials remain paramagnetic down to their lowest measured temperatures. ADR performance starting at 2 K in a field of 5 T is analyzed and compared to literature.}}, author = {{Klinger, Marvin and Treu, Tim and Kreisberger, Felix and Heil, Christian and Klinger, Anna and Jesche, Anton and Gegenwart, Philipp}}, issn = {{2076-3417}}, journal = {{Applied Sciences}}, number = {{1}}, publisher = {{MDPI AG}}, title = {{{Sub-1 K Adiabatic Demagnetization Refrigeration with Rare-Earth Borates Ba3XB9O18 and Ba3XB3O9, X = (Yb, Gd)}}}, doi = {{10.3390/app16010290}}, volume = {{16}}, year = {{2025}}, } @unpublished{63107, abstract = {{We construct good GKP (Gottesman-Kitaev-Preskill) codes (in the sense of Conrad, Eisert and Seifert proposed) from standard short integer solution lattices (SIS) as well as from ring SIS and module SIS lattices, R-SIS and M-SIS lattices, respectively. These lattice are crucial for lattice-based cryptography. Our construction yields GKP codes with distance $\sqrt{n/πe}$. This compares favorably with the NTRU-based construction by Conrad et al. that achieves distance $Ω(\sqrt{n/q}),$ with $n\le q^2/0.28$. Unlike their codes, our codes do not have secret keys that can be used to speed-up the decoding. However, we present a simple decoding algorithm that, for many parameter choices, experimentally yields decoding results similar to the ones for NTRU-based codes. Using the R-SIS and M-SIS construction, our simple decoding algorithm runs in nearly linear time. Following Conrad, Eisert and Seifert's work, our construction of GKP codes follows directly from an explicit, randomized construction of symplectic lattices with (up to constants $\approx 1$) minimal distance $(1/σ_{2n})^{1/2n}\approx \sqrt{\frac{n}{πe}}$, where $σ_{2n}$ is the volume of the 2n-dimensional unit ball. Before this result, Buser and Sarnak gave a non-constructive proof for the existence of such symplectic lattices.}}, author = {{Blömer, Johannes and Xiao, Yinzi and Raissi, Zahra and Soltan, Stanislaw}}, booktitle = {{arXiv:2509.10183}}, title = {{{Symplectic Lattices and GKP Codes -- Simple Randomized Constructions from Cryptographic Lattices}}}, year = {{2025}}, } @misc{60985, author = {{Bergmann, Claudia Dorit}}, booktitle = {{tà katoptrizómena – Magazin für Kunst | Kultur | Theologie | Ästhetik }}, title = {{{Rezension zu: „The Bible in Folklore Worldwide. Volume 2: A Handbook of Biblical Reception in Folklores of Africa, Asia, Oceania, and the Americas“}}}, volume = {{154}}, year = {{2025}}, } @article{61148, abstract = {{Predicting accurate band gaps and optical properties of lower-dimensional materials, including two-dimensional van der Waals (vdW) materials and their heterostructures, remains a challenge within density functional theory (DFT) due to their unique screening compared to their bulk counterparts. Additionally, accurate treatment of the dielectric response is crucial for developing and applying screened-exchange dielectric-dependent range-separated hybrid functionals (SE-DD-RSH) for vdW materials. In this work, we introduce a SE-DD-RSH functional to the 2D vdW materials like MoS2, WS2, hBN, black phosphorus (BP), and β−InSe. By accounting for in-plane and out-of-plane dielectric responses, our method achieves accuracy comparable to advanced many-body techniques like G0W0 and BSE@G0W0 at a lower computational cost. We demonstrate improved band gap predictions and optical absorption spectra for both bulk and layered structures, including some heterostructures like MoS2/WS2. This approach offers a practical and precise tool for exploring electronic and optical phenomena in 2D materials, paving the way for efficient computational studies of layered systems.}}, author = {{Ghosh, Arghya and Jana, Subrata and Hossain, Manoar and Rani, Dimple and Śmiga, Szymon and Samal, Prasanjit}}, issn = {{2469-9950}}, journal = {{Physical Review B}}, number = {{4}}, publisher = {{American Physical Society (APS)}}, title = {{{Advancing excited-state properties of two-dimensional materials using a dielectric-dependent hybrid functional}}}, doi = {{10.1103/8vvn-k9p3}}, volume = {{112}}, year = {{2025}}, } @unpublished{63782, abstract = {{Senders of messages prefer to communicate uncertainty verbally (e.g., something is likely to happen) rather than numerically (such as 75%), leaving receivers with imprecise information. While it is well established that receivers translate verbal probabilities into numerical values that systematically deviate from the intended numerical meaning, it is less clear how this discrepancy influences subsequent behavioral actions. Thus, the role of verbal versus numerical communication of uncertainty warrants additional attention, to investigate two critical questions: 1) whether differences in decision-making under uncertainty arise between these communication forms, and 2) whether such differences persist even when verbal phrases are translated accurately into the intended numerical meaning. By implementing a laboratory experiment, we show that individuals place significantly lower values on uncertain options with medium to high likelihoods when uncertainty is communicated verbally rather than numerically. This effect may lead to less rational decisions under verbal communication, particularly at high likelihoods. Those results remain consistent even if individuals translate verbal uncertainty correctly into the intended numerical uncertainty, implying that a biased behavioral response is not only induced by miscommunication. Instead, ambiguity about the exact meaning of a verbal phrase interferes with decision-making even beyond potential mistranslations. These findings tie in with previous research on ambiguity aversion, which has predominantly operationalized ambiguity through numerical ranges rather than verbal phrases. Based on our findings we conclude that managers should communicate uncertainty numerically, as verbal communication can unintentionally influence the decision-making process of employees.}}, author = {{Bodenberger, Robin and Thommes, Kirsten}}, title = {{{Words or Numbers? How Framing Uncertainties Affects Risk Assessment and Decision-Making}}}, year = {{2025}}, } @inbook{63807, author = {{Dettelbach, Andrea}}, booktitle = {{Beiträge zum Mathematikunterricht 2025 }}, editor = {{Schick, Lisa and Platz, Melanie and Lambert, Anselm}}, location = {{Saarbrücken}}, pages = {{634 -- 637}}, publisher = {{WTM - Verlag für wissenschaftliche Texte und Medien}}, title = {{{Rechnen mit Beziehungen - operative Beziehungen erkennen, beschreiben und nutzen. Entwicklung einer digitalbasierten Lernumgebung mit der App Rechenfeld}}}, doi = {{10.37626/GA9783959873307.0}}, year = {{2025}}, } @inproceedings{62115, author = {{Wiemann, Leon and Schroeder, Sascha and Halverscheid, Stefan}}, booktitle = {{Proceedings of the 48th Conference of the International Group for the Psychology of Mathematics Eduction: Research Reports, Vol. 2}}, editor = {{Cornejo, Claudia and Felmer, Patricio and Gómez, David M. and Dartnell, Pablo and Araya, Paulina and Peri, Armano and Randolph, Valeria}}, location = {{Santiago de Chile}}, pages = {{387--394}}, publisher = {{PME}}, title = {{{The Influence of Mathematical Achievement on the Development of Intuitive Probabilistic Reasoning in Lower Secondary School Students}}}, volume = {{2}}, year = {{2025}}, } @unpublished{64071, abstract = {{Stimulated by the renewed interest and recent developments in semi-empirical quantum chemical (SQC) methods for noncovalent interactions, we examine the properties of liquid water at ambient conditions by means of molecular dynamics (MD) simulations, both with the conventional NDDO-type (neglect of diatomic differential overlap) methods, e.g. AM1 and PM6, and with DFTB-type (density-functional tight-binding) methods, e.g. DFTB2 and GFN-xTB. Besides the original parameter sets, some specifically reparametrized SQC methods (denoted as AM1-W, PM6-fm, and DFTB2-iBi) targeting various smaller water systems ranging from molecular clusters to bulk are considered as well. The quality of these different SQC methods for describing liquid water properties at ambient conditions are assessed by comparison to well-established experimental data and also to BLYP-D3 density functional theory-based ab initio MD simulations. Our analyses reveal that static and dynamics properties of bulk water are poorly described by all considered SQC methods with the original parameters, regardless of the underlying theoretical models, with most of the methods suffering from too weak hydrogen bonds and hence predicting a far too fluid water with highly distorted hydrogen bond kinetics. On the other hand, the reparametrized force-matchcd PM6-fm method is shown to be able to quantitatively reproduce the static and dynamic features of liquid water, and thus can be used as a computationally efficient alternative to electronic structure-based MD simulations for liquid water that requires extended length and time scales. DFTB2-iBi predicts a slightly overstructured water with reduced fluidity, whereas AM1-W gives an amorphous ice-like structure for water at ambient conditions.}}, author = {{Wu, Xin and Elgabarty, Hossam and Alizadeh, Vahideh and Henao Aristizabal, Andres and Zysk, Frederik and Plessl, Christian and Ehlert, Sebastian and Hutter, Jürg and Kühne, Thomas D.}}, title = {{{Benchmarking semi-empirical quantum chemical methods on liquid water}}}, year = {{2025}}, } @article{64086, abstract = {{Abstract This study aimed to develop and evaluate deep learning approaches for the classification of quantum emission signals from WS 2 monolayer nanobubbles across multiple spectral bands, addressing challenges in quantum materials characterization and spectral distinguishability assessment. We utilized a dataset of quantum emission signals ranging from 604 to 629 nm, emitted from WS₂ monolayer nanobubbles on gold substrates, categorized into four spectral bands (604.06–608.24 nm, 611.07–616.34 nm, 617.42–623.35 nm, and 624.16–636.57 nm). Our methodology involved signal preprocessing through normalization and moving average smoothing, followed by transformation into 128 × 128 RGB images using Continuous Wavelet Transform (CWT) with Complex Morlet wavelet. Three convolutional neural network architectures (ResNet50, VGG16, and Xception) were implemented and evaluated using fivefold cross-validation across six possible band pair combinations. All models demonstrated exceptional classification performance, with VGG16 achieving the highest overall mean accuracy of 99.4%, followed by Xception (99.1%) and ResNet50 (98.2%). Perfect classification accuracy (100%) was consistently achieved for spectrally distant band pairs, particularly Band 1 versus Band 4 (20.5 nm separation), while the most challenging classification involved adjacent bands (Band 2 vs. Band 3, 6.27 nm separation) with VGG16 achieving 96.5% accuracy. Statistical analysis using Friedman tests confirmed significant performance differences among models (χ 2  = 8.67, p  = 0.013). Xception demonstrated remarkable computational efficiency, achieving optimal convergence in as few as 2 epochs for certain band combinations while maintaining ultralow training loss values (8.23 × 10⁻ 6 ). Deep learning models, particularly when combined with CWT preprocessing, provide a robust framework for quantum emission signal classification with significant implications for quantum photonics, quantum cryptography, and quantum sensing applications. Our approach bridges the gap between classical machine learning and quantum materials characterization, establishing quantifiable metrics for evaluating spectral distinguishability in quantum information systems. The demonstrated ability to achieve high classification accuracy with minimal training through transfer learning addresses data scarcity challenges inherent to quantum systems, offering a promising direction for future quantum technology development. }}, author = {{Najafzadeh, Hossein and Raissi, Zahra and Golmohammady, Shole and Kaji, Parivash Safari and Esmaeili, Mahdad}}, issn = {{2045-2322}}, journal = {{Scientific Reports}}, number = {{1}}, publisher = {{Springer Science and Business Media LLC}}, title = {{{Deep learning for classifying quantum emission signals in WS2 monolayers using wavelet transform}}}, doi = {{10.1038/s41598-025-29120-0}}, volume = {{15}}, year = {{2025}}, } @article{64081, abstract = {{Abstract Graph states are a fundamental class of multipartite entangled quantum states with wide-ranging applications in quantum information and computation. In this work, we develop a systematic approach for constructing and analyzing χ-colorable graph states, deriving explicit closed-form expressions for arbitrary χ. For a broad family of two- and three-colorable graph states, the representations obtained using only local operations require a minimal number of terms in the Z-eigenbasis. We prove that every two-colorable graph state is local Clifford (LC) equivalent to a state expressible as a summation of rows of an orthogonal array (OA). For graph states with χ > 2, we show that they are LC-equivalent to quantum OAs, establishing a direct combinatorial connection between multipartite entanglement and structured quantum states. Furthermore, the upper and lower bounds of the Schmidt measure for graph states with arbitrary χ colorability are discussed, extending the results for an arbitrary local dimension. Our results offer an efficient and practical method for systematically constructing graph states, optimizing their representation in quantum circuits, and identifying structured forms of multipartite entanglement. This approach also connects graph states to k-uniform and absolutely maximally entangled states, motivating further exploration of the structure of entangled states and their applications in quantum networks, quantum error correction, and measurement based quantum computing.}}, author = {{Revis, Konstantinos-Rafail and Zakaryan, Hrachya and Raissi, Zahra}}, issn = {{1751-8113}}, journal = {{Journal of Physics A: Mathematical and Theoretical}}, number = {{35}}, publisher = {{IOP Publishing}}, title = {{{χ-colorable graph states: closed-form expressions and quantum orthogonal arrays}}}, doi = {{10.1088/1751-8121/adfe45}}, volume = {{58}}, year = {{2025}}, } @inproceedings{62285, abstract = {{The sliding square model is a widely used abstraction for studying self-reconfigurable robotic systems, where modules are square-shaped robots that move by sliding or rotating over one another. In this paper, we propose a novel distributed algorithm that enables a group of modules to reconfigure into a rhombus shape, starting from an arbitrary side-connected configuration. It is connectivity-preserving and operates under minimal assumptions: one leader module, common chirality, constant memory per module, and visibility and communication restricted to immediate neighbors. Unlike prior work, which relaxes the original sliding square move-set, our approach uses the unmodified move-set, addressing the additional challenge of handling locked configurations. Our algorithm is sequential in nature and operates with a worst-case time complexity of O(n^2) rounds, which is optimal for sequential algorithms. To improve runtime, we introduce two parallel variants of the algorithm. Both rely on a spanning tree data structure, allowing modules to make decisions based on local connectivity. Our experimental results show a significant speedup for the first variant, and a linear average runtime for the second variant, which is worst-case optimal for parallel algorithms.}}, author = {{Kostitsyna, Irina and Liedtke, David Jan and Scheideler, Christian}}, booktitle = {{Stabilization, Safety, and Security of Distributed Systems}}, editor = {{Bonomi, Silvia and Mandal, Partha Sarathi and Robinson, Peter and Sharma, Gokarna and Tixeuil, Sebastien}}, isbn = {{9783032111265}}, issn = {{0302-9743}}, location = {{Kathmandu}}, pages = {{325--342}}, publisher = {{Springer Nature Switzerland}}, title = {{{Invited Paper: Distributed Rhombus Formation of Sliding Squares}}}, doi = {{10.1007/978-3-032-11127-2_26}}, year = {{2025}}, }