@article{40568, abstract = {{The search for metal-free and visible light-responsive materials for photocatalytic applications has attracted the interest of not only academics but also the industry in the last decades. Since graphitic carbon nitride (g-C3N4) was first reported as a metal-free photocatalyst, this has been widely investigated in different light-driven reactions. However, the high recombination rate, low electrical conductivity, and lack of photoresponse in most of the visible range have elicited the search for alternatives. In this regard, a broad family of carbon nitride (CxNy) materials was anticipated several decades ago. However, the attention of the researchers in these materials has just been awakened in the last years due to the recent success in the syntheses of some of these materials (i.e., C3N3, C2N, C3N, and C3N5, among others), together with theoretical simulations pointing at the excellent physico-chemical properties (i.e., crystalline structure and chemical morphology, electronic configuration and semiconducting nature, or high refractive index and hardness, among others) and optoelectronic applications of these materials. The performance of CxNy, beyond C3N4, has been barely evaluated in real applications, including energy conversion, storage, and adsorption technologies, and further work must be carried out, especially experimentally, in order to confirm the high expectations raised by simulations and theoretical calculations. Herein, we have summarized the scarce literature related to recent results reporting the synthetic routes, structures, and performance of these materials as photocatalysts. Moreover, the challenges and perspectives at the forefront of this field using CxNy materials are disclosed. We aim to stimulate the research of this new generation of CxNy-based photocatalysts, beyond C3N4, with improved photocatalytic efficiencies by harnessing the striking structural, electronic, and optical properties of this new family of materials.}}, author = {{Lopez Salas, Nieves and Albero, Josep}}, issn = {{2296-8016}}, journal = {{Frontiers in Materials}}, keywords = {{Materials Science (miscellaneous)}}, publisher = {{Frontiers Media SA}}, title = {{{CxNy: New Carbon Nitride Organic Photocatalysts}}}, doi = {{10.3389/fmats.2021.772200}}, volume = {{8}}, year = {{2021}}, } @article{41010, abstract = {{We present the η3-coordination of the 2-phosphaethynthiolate anion in the complex (PN)2La(SCP) (2) [PN=N-(2-(diisopropylphosphanyl)-4-methylphenyl)-2,4,6-trimethylanilide)]. Structural comparison with dinuclear thiocyanate-bridged (PN)2La(μ-1,3-SCN)2La(PN)2 (3) and azide-bridged (PN)2La(μ-1,3-N3)2La(PN)2 (4) complexes indicates that the [SCP]− coordination mode is mainly governed by electronic, rather than steric factors. Quantum mechanical investigations reveal large contributions of the antibonding π*-orbital of the [SCP]− ligand to the LUMO of complex 2, rendering it the ideal precursor for the first functionalization of the [SCP]− anion. Complex 2 was therefore reacted with CAACs which induced a selective rearrangement of the [SCP]− ligand to form the first CAAC stabilized group 15–group 16 fulminate-type complexes (PN)2La{SPC(RCAAC)} (5 a,b, R=Ad, Me). A detailed reaction mechanism for the SCP-to-SPC isomerization is proposed based on DFT calculations.}}, author = {{Watt, Fabian A. and Burkhardt, Lukas and Schoch, Roland and Mitzinger, Stefan and Bauer, Matthias and Weigend, Florian and Goicoechea, Jose M. and Tambornino, Frank and Hohloch, Stephan}}, issn = {{1433-7851}}, journal = {{Angewandte Chemie International Edition}}, keywords = {{General Chemistry, Catalysis}}, number = {{17}}, pages = {{9534--9539}}, publisher = {{Wiley}}, title = {{{η 3 ‐Coordination and Functionalization of the 2‐Phosphaethynthiolate Anion at Lanthanum(III)**}}}, doi = {{10.1002/anie.202100559}}, volume = {{60}}, year = {{2021}}, } @book{40920, editor = {{Standke, Jan and Topalovic, Elvira}}, issn = {{0418-9426}}, keywords = {{General Earth and Planetary Sciences, General Environmental Science}}, publisher = {{Vandenhoeck & Ruprecht GmbH & Co, KG, Göttingen}}, title = {{{In Krisen erzählen – von Krisen erzählen. Sprachliche, literarische und mediale Dimensionen.}}}, doi = {{10.14220/mdge.2021.68.2.0}}, volume = {{68}}, year = {{2021}}, } @inbook{40494, author = {{Sackel, Johanna and Wöbse, Anna-Katharina}}, booktitle = {{A Cultural History of the Sea in the Global Age}}, editor = {{Torma, Franziska}}, isbn = {{9781474299107}}, publisher = {{Bloomsbury Academic}}, title = {{{Networks}}}, volume = {{6}}, year = {{2021}}, } @book{37092, editor = {{Plien, Christian and Topalovic, Elvira}}, issn = {{0418-9426}}, keywords = {{General Earth and Planetary Sciences, General Environmental Science}}, publisher = {{Vandenhoeck & Ruprecht GmbH & Co, KG, Göttingen}}, title = {{{Mehrdeutigkeiten}}}, doi = {{10.14220/mdge.2021.68.4.0}}, volume = {{68}}, year = {{2021}}, } @article{37185, abstract = {{Social robots have emerged as a new digital technology that is increasingly being implemented in the educational landscape. While social robots could be deployed to assist young children with their learning in a variety of different ways, the typical approach in educational practices is to supplement the learning process rather than to replace the human caregiver, e.g., the teacher, parent, educator or therapist. When functioning in the role of an educational assistant, social robots will likely constitute a part of a triadic interaction with the child and the human caregiver. Surprisingly, there is little research that systematically investigates the role of the caregiver by examining the ways in which children involve or check in with them during their interaction with another partner—a phenomenon that is known as social referencing. In the present study, we investigated social referencing in the context of a dyadic child–robot interaction. Over the course of four sessions within our longitudinal language-learning study, we observed how 20 pre-school children aged 4–5 years checked in with their accompanying caregivers who were not actively involved in the language-learning procedure. The children participating in the study were randomly assigned to either an interaction with a social robot or a human partner. Our results revealed that all children across both conditions utilized social referencing behaviors to address their caregiver. However, we found that the children who interacted with the social robot did so significantly more frequently in each of the four sessions than those who interacted with the human partner. Further analyses showed that no significant change in their behavior over the course of the sessions could be observed. Findings are discussed with regard to the caregiver's role during children's interactions with social robots and the implications for future interaction design.}}, author = {{Tolksdorf, Nils F. and Crawshaw, Camilla E. and Rohlfing, Katharina}}, issn = {{2504-284X}}, journal = {{Frontiers in Education}}, keywords = {{Education}}, publisher = {{Frontiers Media SA}}, title = {{{Comparing the Effects of a Different Social Partner (Social Robot vs. Human) on Children's Social Referencing in Interaction}}}, doi = {{10.3389/feduc.2020.569615}}, volume = {{5}}, year = {{2021}}, } @article{37184, author = {{Rohlfing, Katharina and Mertens, Ulrich}}, journal = {{Frontiers in Psychology}}, title = {{{Progressive Reduction of Iconic Gestures Contributes to School-Aged Children’s Increased Word Production}}}, doi = {{10.3389/fpsyg.2021.651725}}, year = {{2021}}, } @misc{41469, author = {{Pinsch, Jan Christian and Lerke, Stephanie}}, booktitle = {{Paderborner Historische Mitteilungen}}, pages = {{114 -- 117}}, title = {{{Rezension zu Oliver Arnold, „Entjudung“ von Theologie und Kirche. Das Eisenacher „Institut zur Erforschung und Beseitigung des jüdischen Einflusses“ auf das deutsche kirchliche Leben 1939-1945, Bd. 6 Christentum und Zeitgeschichte, Leipzig 2020}}}, volume = {{34}}, year = {{2021}}, } @article{30119, abstract = {{Abstract Background Subjective Memory Complaints (SMC) in elderly people due to preclinical Alzheimer’s Disease may be associated with dysregulation of the Kynurenine Pathway (KP), with an increase in neurotoxic metabolites that affect cognition. Golf is a challenging sport with high demands on motor, sensory, and cognitive abilities, which might bear the potential to attenuate the pathological changes of preclinical AD. This trial investigated the feasibility of learning to play golf for elderly with cognitive problems and its effects on cognitive functions and the KP. Methods In a 22-week single-blinded randomized controlled trial, elderly people with SMC were allocated to the golf (n = 25, 180 min training/week) or control group (n = 21). Primary outcomes were feasibility (golf exam, adherence, adverse events) and general cognitive function (Alzheimer’s Disease Assessment Scale). Secondary outcomes include specific cognitive functions (Response Inhibition, Corsi Block Tapping Test, Trail Making Test), KP metabolites and physical performance (6-Minute-Walk-Test). Baseline-adjusted Analysis-of-Covariance was conducted for each outcome. Results 42 participants were analyzed. All participants that underwent the golf exam after the intervention passed it (20/23). Attendance rate of the golf intervention was 75 %. No adverse events or drop-outs related to the intervention occurred. A significant time*group interaction (p = 0.012, F = 7.050, Cohen’s d = 0.89) was found for correct responses on the Response Inhibition task, but not for ADAS-Cog. Moreover, a significant time*group interaction for Quinolinic acid to Tryptophan ratios (p = 0.022, F = 5.769, Cohen’s d = 0.84) in favor of the golf group was observed. An uncorrected negative correlation between attendance rate and delta Quinolinic acid to Kynurenic acid ratios in the golf group (p = 0.039, r=-0.443) was found as well. Conclusions The findings indicate that learning golf is feasible and safe for elderly people with cognitive problems. Preliminary results suggest positive effects on attention and the KP. To explore the whole potential of golfing and its effect on cognitive decline, a larger cohort should be studied over a longer period with higher cardiovascular demands. Trial registration The trial was retrospectively registered (2nd July 2018) at the German Clinical Trials Register (DRKS00014921). }}, author = {{Stroehlein, Julia K. and Vieluf, Solveig and Zimmer, Philipp and Schenk, Alexander and Oberste, Max and Gölz, Christian Johannes and van den Bongard, Franziska and Reinsberger, Claus}}, issn = {{1471-2377}}, journal = {{BMC Neurology}}, keywords = {{Clinical Neurology, General Medicine}}, number = {{1}}, publisher = {{Springer Science and Business Media LLC}}, title = {{{Learning to play golf for elderly people with subjective memory complaints: feasibility of a single‐blinded randomized pilot trial}}}, doi = {{10.1186/s12883-021-02186-9}}, volume = {{21}}, year = {{2021}}, } @article{30115, abstract = {{AbstractCardiorespiratory fitness was found to influence age-related changes of resting state brain network organization. However, the influence on dedifferentiated involvement of wider and more unspecialized brain regions during task completion is barely understood. We analyzed EEG data recorded during rest and different tasks (sensory, motor, cognitive) with dynamic mode decomposition, which accounts for topological characteristics as well as temporal dynamics of brain networks. As a main feature the dominant spatio-temporal EEG pattern was extracted in multiple frequency bands per participant. To deduce a pattern’s stability, we calculated its proportion of total variance among all activation patterns over time for each task. By comparing fit (N = 15) and less fit older adults (N = 16) characterized by their performance on a 6-min walking test, we found signs of a lower task specificity of the obtained network features for the less fit compared to the fit group. This was indicated by fewer significant differences between tasks in the theta and high beta frequency band in the less fit group. Repeated measures ANOVA revealed that a significantly lower proportion of total variance can be explained by the main pattern in high beta frequency range for the less fit compared to the fit group [F(1,29) = 12.572, p = .001, partial η2 = .300]. Our results indicate that the dedifferentiation in task-related brain activation is lower in fit compared to less fit older adults. Thus, our study supports the idea that cardiorespiratory fitness influences task-related brain network organization in different task domains.}}, author = {{Gölz, Christian Johannes and Mora, Karin and Stroehlein, Julia Kristin and Haase, Franziska Katharina and Dellnitz, Michael and Reinsberger, Claus and Vieluf, Solveig}}, issn = {{1871-4080}}, journal = {{Cognitive Neurodynamics}}, keywords = {{Cognitive Neuroscience}}, number = {{5}}, pages = {{847--859}}, publisher = {{Springer Science and Business Media LLC}}, title = {{{Electrophysiological signatures of dedifferentiation differ between fit and less fit older adults}}}, doi = {{10.1007/s11571-020-09656-9}}, volume = {{15}}, year = {{2021}}, } @book{39553, author = {{Duschner, Paul}}, title = {{{Afrikanische Masken und Skulpturen der Sammlung Karl-Josef Scheideler des Lippischen Landesmuseums Detmold}}}, year = {{2021}}, } @inbook{40940, author = {{Duschner, Paul}}, booktitle = {{Koloniale Welten in Westfalen}}, editor = {{Bischoff, Sebastian and Frey, Barbara and Neuwöhner, Andreas}}, pages = {{271--289}}, title = {{{Spuren des Kolonialismus in der Airport Art: Vier Beispiele aus Westfalen}}}, year = {{2021}}, } @inbook{41870, author = {{Seng, Eva- Maria and Göttmann, Frank}}, booktitle = {{Innovation in der Bauwirtschaft – Innovation in the building industry. Wesersandstein vom 16. bis 19. Jahrhundert – Weser Sandstone form the 16th to the 19th Century}}, editor = {{Seng, Eva-Maria and Göttmann, Frank}}, pages = {{19--80}}, title = {{{Einleitung – Introduction}}}, year = {{2021}}, } @inbook{41869, author = {{Seng, Eva- Maria}}, booktitle = {{Weitergabe und Wiedergabe. Dimensionen des Authentischen im Umgang mit immateriellem Kulturerbe}}, editor = {{Saupe, Achim and Samida, Stefanie}}, pages = {{35--52}}, title = {{{Authentizität und kulturelles Erbe – Genese, Aufnahme und Diskussion des Authentizitätsaspektes in die Welterbekonvention}}}, year = {{2021}}, } @book{41871, editor = {{Seng, Eva- Maria and Göttmann, Frank}}, title = {{{Innovation in der Bauwirtschaft – Innovation in the building industry. Wesersandstein vom 16. bis 19. Jahrhundert – Weser Sandstone form the 16th to the 19th Century}}}, year = {{2021}}, } @inbook{41868, author = {{Seng, Eva- Maria}}, booktitle = {{Protestantische Impulse. Prägende Gestalten in Deutschland nach 1945}}, editor = {{Hermle, Siegfried and Schneider, Thomas Martin}}, pages = {{13--20}}, title = {{{Otto Bartning, Spektakuläre Kirchenbaulösungen versus Einfachbauten}}}, year = {{2021}}, } @book{41872, author = {{Seng, Eva- Maria}}, title = {{{Erkundungen in die Kunstgeschichte, Kirchenbau, Städtebau, Utopie, Sammelband von bislang meist unpublizierten Aufsätzen}}}, year = {{2021}}, } @phdthesis{41908, author = {{Schafran, Tommy}}, publisher = {{Shaker Verlag}}, title = {{{Ein Beitrag zur Entwicklung einer additiv gefertigten Unterschenkelorthese unter Berücksichtigung biomechanischer Aspekte des Charcot-Fußes}}}, year = {{2021}}, } @inproceedings{29899, abstract = {{LLC resonant converters are typically unsuitable to be applied for wide voltage-transfer ratio applications. With a full-bridge inverter, however, they can be operated in a variety of different modulations. Most notably, by permanently turning on one MOSFET and turning off the other MOSFET of the same bridge leg, the LLC can be operated in half-bridge configuration reducing the gain by a factor of two. The resonant capacitor is hereby charged to an average voltage of half the input voltage. In this modulation, however, the switch that is permanently turned on is stressed by the complete resonant current while exhibiting no switching losses. This paper proves that the frequency-doubler modulation can better balance the losses among all MOSFETs and should be the preferred mode of operation favored over the conventional half-bridge modulation. This paper analyzes the beneficial loss distribution, proposes an on-the-fly morphing modulation and discusses potential operating strategies to further reduce the junction temperature. Furthermore, it is shown that this modulation can also be altered to achieve the asymmetrical LLC operation. Experimental measurement results show that the modulation results in a substantial decrease of the maximum MOSFET temperature and shows that the converter can be smoothly transitioned during operation from full-bridge modulation to the frequency-doubler half-bridge operation and back.}}, author = {{Rehlaender, Philipp and Unruh, Roland and Hankeln, Lars and Schafmeister, Frank and Böcker, Joachim}}, booktitle = {{23rd European Conference on Power Electronics and Applications (EPE'21 ECCE Europe)}}, isbn = {{978-9-0758-1537-5}}, keywords = {{Resonant converter, High frequency power converter, Switched-mode power supply, Converter control, Control methods for electrical systems}}, location = {{Ghent, Belgium}}, publisher = {{IEEE}}, title = {{{Frequency-Doubler Modulation for Reduced Junction Temperatures for LLC Resonant Converters Operated in Half-Bridge Configuration}}}, doi = {{10.23919/EPE21ECCEEurope50061.2021.9570674}}, year = {{2021}}, } @phdthesis{42013, author = {{Stolbchenko, Mykhailo }}, isbn = {{978-3-8440-7971-5}}, publisher = {{Shaker Verlag}}, title = {{{Zwei-Rollen-Gießwalzen und thermomechanische Behandlung von dünnen Bändern aus der Aluminiumlegierung EN AW-6082}}}, year = {{2021}}, }