@phdthesis{Nicke2022, author = {Nicke, Sascha}, title = {Identit{\"a}tskultur im langen 19. Jahrhundert}, series = {Schriften des Fr{\"u}hneuzeitzentrums Potsdam}, journal = {Schriften des Fr{\"u}hneuzeitzentrums Potsdam}, number = {11}, publisher = {V\&R unipress}, address = {G{\"o}ttingen}, isbn = {978-3-8471-1363-8}, pages = {465}, year = {2022}, language = {de} } @article{Lewandowski2022, author = {Lewandowski, Max}, title = {Hadamard states for bosonic quantum field theory on globally hyperbolic spacetimes}, series = {Journal of mathematical physics}, volume = {63}, journal = {Journal of mathematical physics}, number = {1}, publisher = {American Institute of Physics}, address = {Melville}, issn = {0022-2488}, doi = {10.1063/5.0055753}, pages = {34}, year = {2022}, abstract = {According to Radzikowski's celebrated results, bisolutions of a wave operator on a globally hyperbolic spacetime are of the Hadamard form iff they are given by a linear combination of distinguished parametrices i2(G˜aF-G˜F+G˜A-G˜R) in the sense of Duistermaat and H{\"o}rmander [Acta Math. 128, 183-269 (1972)] and Radzikowski [Commun. Math. Phys. 179, 529 (1996)]. Inspired by the construction of the corresponding advanced and retarded Green operator GA, GR as done by B{\"a}r, Ginoux, and Pf{\"a}ffle {Wave Equations on Lorentzian Manifolds and Quantization [European Mathematical Society (EMS), Z{\"u}rich, 2007]}, we construct the remaining two Green operators GF, GaF locally in terms of Hadamard series. Afterward, we provide the global construction of i2(G˜aF-G˜F), which relies on new techniques such as a well-posed Cauchy problem for bisolutions and a patching argument using Čech cohomology. This leads to global bisolutions of the Hadamard form, each of which can be chosen to be a Hadamard two-point-function, i.e., the smooth part can be adapted such that, additionally, the symmetry and the positivity condition are exactly satisfied.}, language = {en} } @article{TofeldeBufeTurowski2022, author = {Tofelde, Stefanie and Bufe, Aaron and Turowski, Jens M.}, title = {Hillslope Sediment Supply Limits Alluvial Valley Width}, series = {AGU Advances}, journal = {AGU Advances}, publisher = {American Geophysical Union (AGU); Wiley}, address = {Hoboken, New Jersey, USA}, issn = {2576-604X}, doi = {10.1029/2021AV000641}, pages = {20}, year = {2022}, abstract = {River-valley morphology preserves information on tectonic and climatic conditions that shape landscapes. Observations suggest that river discharge and valley-wall lithology are the main controls on valley width. Yet, current models based on these observations fail to explain the full range of cross-sectional valley shapes in nature, suggesting hitherto unquantified controls on valley width. In particular, current models cannot explain the existence of paired terrace sequences that form under cyclic climate forcing. Paired river terraces are staircases of abandoned floodplains on both valley sides, and hence preserve past valley widths. Their formation requires alternating phases of predominantly river incision and predominantly lateral planation, plus progressive valley narrowing. While cyclic Quaternary climate changes can explain shifts between incision and lateral erosion, the driving mechanism of valley narrowing is unknown. Here, we extract valley geometries from climatically formed, alluvial river-terrace sequences and show that across our dataset, the total cumulative terrace height (here: total valley height) explains 90\%-99\% of the variance in valley width at the terrace sites. This finding suggests that valley height, or a parameter that scales linearly with valley height, controls valley width in addition to river discharge and lithology. To explain this valley-width-height relationship, we reformulate existing valley-width models and suggest that, when adjusting to new boundary conditions, alluvial valleys evolve to a width at which sediment removal from valley walls matches lateral sediment supply from hillslope erosion. Such a hillslope-channel coupling is not captured in current valley-evolution models. Our model can explain the existence of paired terrace sequences under cyclic climate forcing and relates valley width to measurable field parameters. Therefore, it facilitates the reconstruction of past climatic and tectonic conditions from valley topography.}, language = {en} } @book{OPUS4-57691, title = {Linguistic hybridity}, series = {Studia Romanica}, journal = {Studia Romanica}, number = {232}, editor = {Hennemann, Anja and Meisnitzer, Benjamin}, publisher = {Universit{\"a}tsverlag Winter}, address = {Heidelberg}, isbn = {978-3-8253-4936-3}, pages = {229}, year = {2022}, abstract = {This volume deals with different linguistic phenomena representing grammaticalization and lexicalization processes and combines different approaches of contact linguistics and variational linguistics. It contains papers on clitic placement in Angolan Portuguese, on the use of subject pronouns in French, Brazilian Portuguese and Caribbean Spanish, on evidential marking in Paraguayan Spanish, on Paraguayan Guaran{\´i}, on evidentiality in different varieties of Spanish, on discourse markers in Latin America, on modal particles in Italian and their translation into German, on bilingual communities in Southern Brazil, on Spanish-German-Russian language contact and on Romance aspectual periphrases in contact with English progressives.}, language = {en} } @incollection{BoehmHennemannMeisnitzer2022, author = {B{\"o}hm, Ver{\´o}nica Julia and Hennemann, Anja and Meisnitzer, Benjamin}, title = {Language contact and the linguistic coding of evidentiality in varieties of Spanish in Latin America}, series = {Linguistic hybridity: contact-induced and cognitively motivated grammaticalization and lexicalization processes in Romance languages}, booktitle = {Linguistic hybridity: contact-induced and cognitively motivated grammaticalization and lexicalization processes in Romance languages}, publisher = {Universit{\"a}tsverlag Winter}, address = {Heidelberg}, isbn = {978-3-8253-4936-3}, pages = {117 -- 142}, year = {2022}, language = {en} } @incollection{HennemannMeisnitzer2022, author = {Hennemann, Anja and Meisnitzer, Benjamin}, title = {An introduction to contact-induced and cognitively motivated grammaticalization and lexicalization processes in Romance languages}, series = {Linguistic hybridity: contact-induced and cognitively motivated grammaticalization and lexicalization processes in Romance languages}, booktitle = {Linguistic hybridity: contact-induced and cognitively motivated grammaticalization and lexicalization processes in Romance languages}, publisher = {Heidelberg}, address = {Universit{\"a}tsverlag Winter}, isbn = {978-3-8253-4936-3}, pages = {7 -- 13}, year = {2022}, language = {en} } @article{KastiusSchlosser2022, author = {Kastius, Alexander and Schlosser, Rainer}, title = {Dynamic pricing under competition using reinforcement learning}, series = {Journal of revenue and pricing management}, volume = {21}, journal = {Journal of revenue and pricing management}, number = {1}, publisher = {Springer Nature Switzerland AG}, address = {Cham}, issn = {1476-6930}, doi = {10.1057/s41272-021-00285-3}, pages = {50 -- 63}, year = {2022}, abstract = {Dynamic pricing is considered a possibility to gain an advantage over competitors in modern online markets. The past advancements in Reinforcement Learning (RL) provided more capable algorithms that can be used to solve pricing problems. In this paper, we study the performance of Deep Q-Networks (DQN) and Soft Actor Critic (SAC) in different market models. We consider tractable duopoly settings, where optimal solutions derived by dynamic programming techniques can be used for verification, as well as oligopoly settings, which are usually intractable due to the curse of dimensionality. We find that both algorithms provide reasonable results, while SAC performs better than DQN. Moreover, we show that under certain conditions, RL algorithms can be forced into collusion by their competitors without direct communication.}, language = {en} } @article{AdairMcLaughlin2022, author = {Adair, Gigi and McLaughlin, Carly}, title = {Beyond humanitarianism}, series = {Narrating Flight and Asylum}, journal = {Narrating Flight and Asylum}, publisher = {Trier}, address = {WVT Wissenschaftlicher Verlag Trier}, isbn = {978-3-86821-965-4}, pages = {165 -- 182}, year = {2022}, language = {en} } @article{MiklashevskyFischerLindemann2022, author = {Miklashevsky, Alex and Fischer, Martin H. and Lindemann, Oliver}, title = {Spatial-numerical associations without a motor response? Grip force says 'Yes'}, series = {Acta Psychologica}, volume = {231}, journal = {Acta Psychologica}, publisher = {Elsevier}, address = {Amsterdam}, issn = {1873-6297}, doi = {10.1016/j.actpsy.2022.103791}, pages = {1 -- 17}, year = {2022}, abstract = {In numerical processing, the functional role of Spatial-Numerical Associations (SNAs, such as the association of smaller numbers with left space and larger numbers with right space, the Mental Number Line hypothesis) is debated. Most studies demonstrate SNAs with lateralized responses, and there is little evidence that SNAs appear when no response is required. We recorded passive holding grip forces in no-go trials during number processing. In Experiment 1, participants performed a surface numerical decision task ("Is it a number or a letter?"). In Experiment 2, we used a deeper semantic task ("Is this number larger or smaller than five?"). Despite instruction to keep their grip force constant, participants' spontaneous grip force changed in both experiments: Smaller numbers led to larger force increase in the left than in the right hand in the numerical decision task (500-700 ms after stimulus onset). In the semantic task, smaller numbers again led to larger force increase in the left hand, and larger numbers increased the right-hand holding force. This effect appeared earlier (180 ms) and lasted longer (until 580 ms after stimulus onset). This is the first demonstration of SNAs with passive holding force. Our result suggests that (1) explicit motor response is not a prerequisite for SNAs to appear, and (2) the timing and strength of SNAs are task-dependent. (216 words).}, language = {en} } @book{CockshottCottrellDapprich2022, author = {Cockshott, William Paul and Cottrell, Allin and Dapprich, Jan Philipp}, title = {Economic planning in an age of climate crisis}, isbn = {979-8-36012-556-3}, pages = {186}, year = {2022}, abstract = {Faced with an accelerating climate crisis caused by burning fossil fuels we have to change the way the economy works. We can no longer go on with a system that just maximises private profit without consideration for its effects. Instead we have to conciously plan how to change to a fossil fuel free society. The need is urgent. The transformation will be vast. Nothing similar has been done in the West since the days of wartime mobilisation. This book explains the basic science of climate change before looking at the transformations needed to our energy and basic industries. It looks at the previous successful history of deliberate planning practiced in the UK from 1939 to the 1960s and how, using modern computing techniques it will be possible to organise resources so as to effect the change.}, language = {en} } @article{Buerger2022, author = {B{\"u}rger, Gerd}, title = {A conundrum of trends}, series = {Journal of hydrology}, volume = {609}, journal = {Journal of hydrology}, publisher = {Elsevier}, address = {Amsterdam}, issn = {0022-1694}, doi = {10.1016/j.jhydrol.2022.127745}, pages = {3}, year = {2022}, abstract = {This comment is meant to reiterate two warnings: One applies to the uncritical use of ready-made (openly available) program packages, and one to the estimation of trends in serially correlated time series. Both warnings apply to the recent publication of Lischeid et al. about lake-level trends in Germany.}, language = {en} } @techreport{KienbaumWuerflFavella2022, type = {Working Paper}, author = {Kienbaum, Janna and W{\"u}rfl, Katja and Favella, Gianpiero}, title = {Leitfaden f{\"u}r einen qualitativen Methoden- und Feldbericht}, doi = {10.5281/zenodo.7247993}, pages = {12}, year = {2022}, abstract = {Der Leitfaden f{\"u}r einen qualitativen Methoden- und Feldbericht ist im Rahmen des DFG-Verbundprojektes "FDNext" (2020-2023) entstanden und dient als Orientierungshilfe f{\"u}r die Dokumentation erhobener Daten mit dem Schwerpunkt auf die qualitative Bildungsforschung.}, language = {de} } @article{Xu2022, author = {Xu, Ying}, title = {Study on transport mechanism of m5C-edited mRNAs}, pages = {133}, year = {2022}, language = {en} } @article{LindnerMoellerHildebrandtetal.2022, author = {Lindner, Nadja and Moeller, Korbinian and Hildebrandt, Frauke and Hasselhorn, Marcus and Lonnemann, Jan}, title = {Children's use of egocentric reference frames in spatial language is related to their numerical magnitude understanding}, series = {Frontiers in Psychology}, journal = {Frontiers in Psychology}, publisher = {Frontiers}, address = {Lausanne, Schweiz}, issn = {1664-1078}, doi = {10.3389/fpsyg.2022.943191}, pages = {1 -- 13}, year = {2022}, abstract = {Numerical magnitude information is assumed to be spatially represented in the form of a mental number line defined with respect to a body-centred, egocentric frame of reference. In this context, spatial language skills such as mastery of verbal descriptions of spatial position (e.g., in front of, behind, to the right/left) have been proposed to be relevant for grasping spatial relations between numerical magnitudes on the mental number line. We examined 4- to 5-year-old's spatial language skills in tasks that allow responses in egocentric and allocentric frames of reference, as well as their relative understanding of numerical magnitude (assessed by a number word comparison task). In addition, we evaluated influences of children's absolute understanding of numerical magnitude assessed by their number word comprehension (montring different numbers using their fingers) and of their knowledge on numerical sequences (determining predecessors and successors as well as identifying missing dice patterns of a series). Results indicated that when considering responses that corresponded to the egocentric perspective, children's spatial language was associated significantly with their relative numerical magnitude understanding, even after controlling for covariates, such as children's SES, mental rotation skills, and also absolute magnitude understanding or knowledge on numerical sequences. This suggests that the use of egocentric reference frames in spatial language may facilitate spatial representation of numbers along a mental number line and thus seem important for preschoolers' relative understanding of numerical magnitude.}, language = {en} } @book{BenderDreiackEngelsetal.2022, author = {Bender, Carsten and Dreiack, Stefanie and Engels, Victoria and Fisseler, Bj{\"o}rn and Gregory, Luisa and Gross, Monika and Kaffenberger, Jens and Kost{\"a}dt, Peter and Meyer zu Bexten, Erdmuthe and Rustemeier, Linda and Schwarz, Thorsten and Tannert, Benjamin and Velasquez, Estefania Cepeda and Weber, Gerhard}, title = {Leitfaden zur Digitalen Barrierefreiheit im Hochschulkontext}, series = {Arbeitspapier / Hochschulforum Digitalisierung (HFD) ; 66}, volume = {5}, journal = {Arbeitspapier / Hochschulforum Digitalisierung (HFD) ; 66}, publisher = {Stifterverband f{\"u}r die Deutsche Wissenschaft}, address = {Berlin}, issn = {2365-7081}, doi = {10.5445/IR/1000153177}, pages = {43}, year = {2022}, language = {de} } @article{BertelmannMittermaierKostaedt2022, author = {Bertelmann, Roland and Mittermaier, Bernhard and Kost{\"a}dt, Peter}, title = {Transform2Open}, publisher = {Helmholtz Open Science Office}, address = {Potsdam}, doi = {10.48440/os.helmholtz.054}, pages = {22}, year = {2022}, language = {de} } @article{RezoriBuchallikWarschburger2022, author = {Rezori, Roman Enzio von and Buchallik, Friederike and Warschburger, Petra}, title = {Validation of the German Benefit Finding Scale for youth with chronic conditions}, series = {Child and adolescent psychiatry and mental health}, volume = {16}, journal = {Child and adolescent psychiatry and mental health}, publisher = {Biomed Central}, address = {London}, issn = {1753-2000}, doi = {10.1186/s13034-021-00438-7}, pages = {1 -- 8}, year = {2022}, abstract = {Background Benefit finding, defined as perceiving positive life changes resulting from adversity and negative life stressors, gains growing attention in the context of chronic illness. The study aimed at examining the psychometric properties of the Benefit Finding Scale for Children (BFSC) in a sample of German youth facing chronic conditions. Methods A sample of adolescents with various chronic conditions (N = 304; 12 - 21years) completed the 10-item BFSC along with measures of intra- and interpersonal resources, coping strategies, and health-related quality of life (hrQoL). The total sample was randomly divided into two subsamples for conducting exploratory and confirmatory factor analyses (EFA/CFA). Results EFA revealed that the BFSC scores had a one-dimensional factor structure. CFA verified the one-dimensional factor structure with an acceptable fit. The BFSC exhibited acceptable internal consistency (α = 0.87 - 0.88) and construct validity. In line with our hypotheses, benefit finding was positively correlated with optimism, self-esteem, self-efficacy, sense of coherence, and support seeking. There were no correlations with avoidance, wishful thinking, emotional reaction, and hrQoL. Sex differences in benefit finding were not consistent across subsamples. Benefit finding was also positively associated with age, disease severity, and social status. Conclusions The BFSC is a psychometrically sound instrument to assess benefit finding in adolescents with chronic illness and may facilitate further research on positive adaptation processes in adolescents, irrespective of their specific diagnosis.}, language = {en} } @phdthesis{Stoll2022, author = {Stoll, Andreas}, title = {Advanced spectroscopic instruments enabled by integrated optics}, school = {Universit{\"a}t Potsdam}, pages = {97, XV}, year = {2022}, abstract = {The aim of this work is the study of silica Arrayed Waveguide Gratings (AWGs) in the context of applications in astronomy. The specific focus lies on the investigation of the feasibility and technology limits of customized silica AWG devices for high resolution near-infrared spectroscopy. In a series of theoretical and experimental studies, AWG devices of varying geometry, foot-print and spectral resolution are constructed, simulated using a combination of a numerical beam propagation method and Fraunhofer diffraction and fabricated devices are characterized with respect to transmission efficiency, spectral resolution and polarization sensitivity. The impact of effective index non-uniformities on the performance of high-resolution AWG devices is studied numerically. Characterization results of fabricated devices are used to extrapolate the technology limits of the silica platform. The important issues of waveguide birefringence and defocus aberration are discussed theoretically and addressed experimentally by selection of an appropriate aberration-minimizing anastigmatic AWG layout structure. The drawbacks of the anastigmatic AWG geometry are discussed theoretically. From the results of the experimental studies, it is concluded that fabrication-related phase errors and waveguide birefringence are the primary limiting factors for the growth of AWG spectral resolution. It is shown that, without post-processing, the spectral resolving power is phase-error-limited to R < 40, 000 and, in the case of unpolarized light, birefringence-limited to R < 30, 000 in the AWG devices presented in this work. Necessary measures, such as special waveguide geometries and post-fabrication phase error correction are proposed for future designs. The elimination of defocus aberration using an anastigmatic AWG geometry is successfully demonstrated in experiment. Finally, a novel, non-planar dispersive in-fibre waveguide structure is proposed, discussed and studied theoretically.}, language = {en} } @book{OPUS4-57925, title = {Moses Mendelssohn: Gesammelte Schriften Jubil{\"a}umsausgabe}, volume = {21}, number = {1-2}, editor = {Krochmalnik, Daniel and Brocke, Michael}, publisher = {Frommann-Holzboog}, address = {Stuttgart, Bad Cannstatt}, isbn = {978-3-7728-3633-6}, doi = {10.5771/9783772836336}, pages = {560}, year = {2022}, abstract = {Mit den ›Nachtr{\"a}gen‹ liegt nun der letzte Schriftenband der Jubil{\"a}umsausgabe vor. Er erg{\"a}nzt die ›Jubil{\"a}umsausgabe‹ um Texte und Briefe, die entweder erst nach Erscheinen des jeweiligen Bandes entdeckt wurden oder bei Fortsetzung der Ausgabe nach dem Krieg als verschollen galten. Bei den philosophischen Fragmenten handelt es sich u.a. um bisher unbekannte Entw{\"u}rfe f{\"u}r die ›Morgenstunden‹ und ›An die Freunde Lessings‹. Zu den Judaica z{\"a}hlen Mendelssohns {\"U}bertragungen hebr{\"a}ischer Gedichte des 18. Jahrhunderts, seine {\"U}bersetzung der Grundartikel des Judentums und seine Anmerkungen zu Michaelis' Rezension von Dohms ›Ueber die b{\"u}rgerliche Verbesserung der Juden‹. Zu Mendelssohns Briefpartnern z{\"a}hlen u.a. Abbt, Iselin, Lessing, Friedrich II., Engel, Lavater, Michaelis, Penzel, Nicolai, Dohm, Kuh, Lowth, Carmer und Ramler.}, language = {de} } @book{OPUS4-57909, title = {Der Messias kommt nicht}, editor = {Krochmalnik, Daniel and Homolka, Walter and Hoppe, Juni}, publisher = {Herder}, address = {Freiburg, Basel, Wien}, isbn = {978-3-451-82741-9}, pages = {272}, year = {2022}, abstract = {Die Geschichte des Messias im Judentum ist eine Geschichte entt{\"a}uschter Hoffnungen. Immer wieder gab es Heilsfiguren, denen diese Rolle zugeschrieben wurde. Doch die Erl{\"o}sung von Besatzung und Fremdherrschaft, Exil, Unterdr{\"u}ckung und Verfolgung blieb aus. Deshalb geriet die Erwartung des Messias an die Peripherie j{\"u}discher Theologie. In ihrem Gang durch die j{\"u}dische Geistesgeschichte zeigen die Autoren die Abkehr von einem personalen Messias und die Bekr{\"a}ftigung der Hoffnung der Propheten auf ein universales messianisches Zeitalter. Dies betont die Pflicht aller Menschen, an der Heilung der Welt mitzuwirken. Deutlich wird: Die Messiasidee kann keine Br{\"u}cke zwischen Christentum und Judentum sein.}, language = {de} }