@article{48382, abstract = {{AbstractThe intraindividual process of study dropout, from forming dropout intention to deregistration, is of motivational nature. Yet typical studies investigate interindividual differences, which do not inform about intraindividual processes. Our study focused on the intraindividual process of forming dropout intention, and applied expectancy-value theory to analyze its motivational underpinnings. To expand research, we considered associations of intraindividual deviations in expectancy, intrinsic value, attainment value, utility value, and cost to intraindividual deviations in dropout intention. A total of 326 undergraduate students of law and mathematics rated motivational variables and dropout intention three times from semester start to the final exam period. Multilevel regression analyses revealed that intraindividual changes in intrinsic value, attainment, and cost, but not in expectancy and utility, related to intraindividual changes in dropout intention. Further, we considered students’ demographics as moderators. Only age moderated the association between intrinsic value and dropout intention. Our results stress the crucial role of certain value components, including cost, for emerging dropout intention.}}, author = {{Schnettler, Theresa and Bobe, Julia and Scheunemann, Anne and Fries, Stefan and Grunschel, Carola}}, issn = {{0146-7239}}, journal = {{Motivation and Emotion}}, keywords = {{Experimental and Cognitive Psychology, Social Psychology}}, number = {{4}}, pages = {{491--507}}, publisher = {{Springer Science and Business Media LLC}}, title = {{{Is it still worth it? Applying expectancy-value theory to investigate the intraindividual motivational process of forming intentions to drop out from university}}}, doi = {{10.1007/s11031-020-09822-w}}, volume = {{44}}, year = {{2020}}, } @article{50175, abstract = {{Abstract Astrophysical topics can be treated with the methods of different areas of physics, mathematics and other natural sciences. The integration of these topics into such areas could improve students’ motivation and strengthen the connections between different fields of the mentioned sciences. In this article, an example of the connection between the physics of the stars and that of their statistical distributions is given. The usage of Microsoft Excel simplifies the mathematical requirements and gives the possibility of seeing the changes of distribution with the growing age of the regarded population of stars. The changes are a direct consequence to the limited lifetime of the stars and the limited age of the considered population of stars.}}, author = {{Hohmann, Sascha}}, issn = {{0143-0807}}, journal = {{European Journal of Physics}}, keywords = {{General Physics and Astronomy}}, number = {{1}}, publisher = {{IOP Publishing}}, title = {{{Calculating the distributions of number, mass and luminosity of the stars with the help of MS Excel}}}, doi = {{10.1088/1361-6404/abb297}}, volume = {{42}}, year = {{2020}}, } @article{50280, abstract = {{The use of video analysis in Design-Based Research (DBR) seems to be promising, because the quality of video data matches the reality of educational fields. Educational fields are multidimensional and complex. And more than other types of data, video may capture, for example, the simultaneity of verbal and non-verbal interactions. This seems to be valuable in the quest for new insights and better designs of educational interventions. However, to date there has been limited use of video data in researching their design. This paper aims at reflecting how the benefits of video-based analysis may be utilised in DBR. Experiences with the collection and analysis of video data in a project to design self-organised learning (SOL) at a vocational school in Germany will be used as a case study to illustrate the type of findings that may feed into the DBR process. In this case, the project school had already introduced a sophisticated SOL model but was experiencing various implementation difficulties. Resolving issues like this requires insights into how exactly a concept is realised and what happens in the field. Therefore, video data on classroom interactions was gathered and sub-sequently analysed using the documentary method. This led to the reconstruction of two different types of orientation that were guiding the students when they dealt with their self-organised learning environment. In a subversive orientation, students playfully infiltrate the formal learning space with peer activities. In a confirming orientation, students stick to both, the (informal) rules of the (formal) learning arrangement and of the peer environment, thus expressing respect for the boundary between these two worlds. These findings have been used to redesign the SOL intervention.}}, author = {{Gössling, Bernd and Daniel, Desiree}}, issn = {{2511-0667}}, journal = {{EDeR. Educational Design Research}}, keywords = {{Pulmonary and Respiratory Medicine, Pediatrics, Perinatology and Child Health}}, number = {{2}}, publisher = {{Staats- und Universitatsbibliothek Hamburg Carl von Ossietzky}}, title = {{{Video analysis in Design-Based Research – Findings of a project on self-organised learning at a vocational school}}}, doi = {{10.15460/eder.2.2.1270}}, volume = {{2}}, year = {{2020}}, } @article{51001, author = {{Wells, Aaron}}, issn = {{1369-8486}}, journal = {{Studies in History and Philosophy of Science Part C: Studies in History and Philosophy of Biological and Biomedical Sciences}}, keywords = {{History and Philosophy of Science, History, General Medicine}}, publisher = {{Elsevier BV}}, title = {{{Kant, Linnaeus, and the economy of nature}}}, doi = {{10.1016/j.shpsc.2020.101294}}, volume = {{83}}, year = {{2020}}, } @article{51316, abstract = {{AbstractRight-wing populism has strongly polarizing effects in politics, education and science—a problem which this article aims to adress. Instead of claiming a demarcation between science and education on the one hand and right-wing populist ideology on the other, we initially focus on continuities. At the same time, we are concerned with finding a critical distance towards right-wing populism. Using the theoretical framework of boundary-work we therefore analyse a case of right-wing populist educational and scientific efforts. Boundary-work can occur in an institutional, content-related and epistemic dimension. While we identify strong continuities in the institutional and content-related dimensions, we see the main difference in the epistemic dimension. In conclusion, we use the results of our analysis to develop a critical position as scientists and educationists towards right-wing populism, drawing consequences for the epistemic, content-related and institutional dimensions.}}, author = {{Haker, Christoph and Otterspeer, Lukas}}, issn = {{2364-0014}}, journal = {{Zeitschrift für Weiterbildungsforschung}}, keywords = {{General Earth and Planetary Sciences, General Environmental Science}}, number = {{3}}, pages = {{357--376}}, title = {{{Neither demarcation nor confrontation. Finding a critical position towards right-wing populism}}}, doi = {{10.1007/s40955-020-00174-z}}, volume = {{43}}, year = {{2020}}, } @article{51319, abstract = {{Frank Beier, Franziska Wyßuwa und Elisa Wagner diskutieren in ihrem aktuellen Beitrag Fallinterpretationen zwischen Theorieund Anwendungsbezug den praktischen Nutzen wissenschaftlicher Erkenntnisse, insbesondere von Theorie, für die Schule und Erwachsenenbildung. Wir greifen ihre Position in einer dialogischen Replik kritisch auf. Die Form des Dialogs bietet uns die Möglichkeit, unsere Perspektiven als Erziehungswissenschaftler, Lehrer und Soziologe in die Debatte einzubringen. Wir möchten so die eingespielten Grenzziehungen in ‚Theorie- Praxis-Debatten‘ irritieren und Beiers, Wyßuwas und Wagners Plädoyer für die Stärke wissenschaftlicher Theorie ergänzen. Diese Stärke kommt weniger zur Geltung, wenn Theorie Kontingenz schließende und mehr, wenn sie Kontingenz öffnende Effekte hat. Zudem sollte Theorie nicht auf Modelle oder auf Theorien begrenzter Reichweite beschränkt und die konkrete Verwendung von Theorie zum Gegenstand der (Selbst)Reflexion und (Selbst)Kritik werden.}}, author = {{Haker, Christoph and Otterspeer, Lukas}}, issn = {{2567-5974}}, journal = {{Debatte. Beiträge zur Erwachsenenbildung}}, keywords = {{Rehabilitation, Physical Therapy, Sports Therapy and Rehabilitation, General Medicine}}, number = {{1-2020}}, pages = {{49--63}}, publisher = {{Verlag Barbara Budrich GmbH}}, title = {{{Zum praktischen Nutzen von Theorie. Ein Dialog über die Grenzen von Bildungspraxis, Erziehungswissenschaft und Soziologie}}}, doi = {{10.3224/debatte.v3i1.05}}, volume = {{3}}, year = {{2020}}, } @article{46546, author = {{Vukadinovic, Yannik and Burkhardt, Lukas and Päpcke, Ayla and Miletic, Anabel and Fritsch, Lorena and Altenburger, Björn and Schoch, Roland and Neuba, Adam and Lochbrunner, Stefan and Bauer, Matthias}}, issn = {{0020-1669}}, journal = {{Inorganic Chemistry}}, keywords = {{Inorganic Chemistry, Physical and Theoretical Chemistry}}, number = {{13}}, pages = {{8762--8774}}, publisher = {{American Chemical Society (ACS)}}, title = {{{When Donors Turn into Acceptors: Ground and Excited State Properties of FeII Complexes with Amine-Substituted Tridentate Bis-imidazole-2-ylidene Pyridine Ligands}}}, doi = {{10.1021/acs.inorgchem.0c00393}}, volume = {{59}}, year = {{2020}}, } @article{47579, abstract = {{AbstractDie chemische Industrie sieht sich mit gravierenden Herausforderungen konfrontiert: Die Einhaltung der Klimaschutzziele, die Auswirkungen der Energiewende und die zunehmende Bedeutung der Kreislaufwirtschaft treffen die gesamte Wertschöpfungskette. Lösungsansätze von der Prozess‐ über die Apparateebene bis hin zum Einzelphänomen sind notwendig, um die Wettbewerbsfähigkeit dieses zentralen Industriezweigs zu erhalten. In diesem Beitrag werden aktuelle Entwicklungen und zukünftige Handlungsfelder in der Trenntechnik, die für diese Herausforderungen wertvolle Beiträge leisten können, dargestellt.}}, author = {{Riese, Julia and Hoff, Andreas and Stock, Jürgen and Górak, Andrzej and Grünewald, Marcus}}, issn = {{0009-286X}}, journal = {{Chemie Ingenieur Technik}}, keywords = {{Industrial and Manufacturing Engineering, General Chemical Engineering, General Chemistry}}, number = {{7}}, pages = {{818--830}}, publisher = {{Wiley}}, title = {{{Separation Units 4.0 – Trennapparate heute und morgen}}}, doi = {{10.1002/cite.202000032}}, volume = {{92}}, year = {{2020}}, } @article{47572, abstract = {{AbstractDue to high energy‐intensive processes and a dependence on carbon‐based materials, the process industry plays a major role in climate change. Therefore, the substitution of fossil resources by bio‐based resources is indispensable. This leads to challenges arising from accompanying changes of the type, amount and location of resources. At the same time, transformable production systems are currently in the focus of research addressing the required flexibility. These systems which consist of modular production and logistics units offer the possibility to adapt flexibly in volatile conditions within dynamic supply chains. Hence, this work compiles elements for environmental sustainability, which minimize the carbon footprint in the process industry: transformable production systems, the utilization of bio‐based resources, carbon dioxide and renewable energy as well as the application of these elements in decentral production networks. Finally, possible use cases are determined based on the combination of these elements through a multi‐criteria analysis.}}, author = {{Pannok, Maik and Finkbeiner, Marco and Fasel, Henrik and Riese, Julia and Lier, Stefan}}, issn = {{2196-9744}}, journal = {{ChemBioEng Reviews}}, keywords = {{Industrial and Manufacturing Engineering, Filtration and Separation, Process Chemistry and Technology, Biochemistry, Chemical Engineering (miscellaneous), Bioengineering}}, number = {{6}}, pages = {{216--228}}, publisher = {{Wiley}}, title = {{{Transformable Decentral Production for Local Economies with Minimized Carbon Footprint}}}, doi = {{10.1002/cben.202000008}}, volume = {{7}}, year = {{2020}}, } @article{47578, abstract = {{AbstractThe change in process industry from fossil resources to alternative feedstock is indispensable due to the scarcity of resources and global warming. This leads to new challenges for the production systems. On the market side, rapid innovation is accompanied by shorter product life cycles leading to an increasing uncertainty of demand in terms of product type, volume and location. Therefore, the following five elements are combined into a concept to address these challenges: transformable production systems, local bio‐based resources, CO2 as feedstock, renewable energy and decentral production network with local economies.}}, author = {{Finkbeiner, Marco and Pannok, Maik and Fasel, Henrik and Riese, Julia and Lier, Stefan}}, issn = {{0009-286X}}, journal = {{Chemie Ingenieur Technik}}, keywords = {{Industrial and Manufacturing Engineering, General Chemical Engineering, General Chemistry}}, number = {{12}}, pages = {{2041--2045}}, publisher = {{Wiley}}, title = {{{Modular Production with Bio‐Based Resources in a Decentral Production Network}}}, doi = {{10.1002/cite.202000072}}, volume = {{92}}, year = {{2020}}, } @article{47574, abstract = {{AbstractIn this paper, a newly designed distillation column consisting of a wetted wall with a rectangular cross section is analyzed and compared with a conventional packed column with regard to the operating range of both apparatuses. As expected, the pressure drop is considerably lower in the wetted‐wall column and, therefore, it offers a higher range of operation. However, in the wetted‐wall column, the separation efficiency decreases rapidly with increasing F factors. This effect can be overcome by the serial connection of two wetted‐wall columns.}}, author = {{Reitze, Arnulf and Grünewald, Marcus and Riese, Julia}}, issn = {{0009-286X}}, journal = {{Chemie Ingenieur Technik}}, keywords = {{Industrial and Manufacturing Engineering, General Chemical Engineering, General Chemistry}}, number = {{12}}, pages = {{1968--1975}}, publisher = {{Wiley}}, title = {{{Comparison of the Operating Range of a Wetted‐Wall Column with a Packed Column for Distillation}}}, doi = {{10.1002/cite.202000065}}, volume = {{92}}, year = {{2020}}, } @article{47577, abstract = {{AbstractThis study presents a new and innovative sieve tray design for a more flexible operation of separation columns in terms of possible throughput. The advantage of this new tray design is to ensure an optimal operation for varying feed flow rates and constant separation efficiencies for different load ranges. The aim of this work is to give a short introduction and an outlook to the investigation of the functionality of the designed trays. Moreover, the general design of the new trays, first results for CFD simulations of the dry pressure drop and the experimental setup are presented.}}, author = {{Fasel, Henrik and Grünewald, Marcus and Riese, Julia}}, issn = {{0009-286X}}, journal = {{Chemie Ingenieur Technik}}, keywords = {{Industrial and Manufacturing Engineering, General Chemical Engineering, General Chemistry}}, number = {{12}}, pages = {{2035--2040}}, publisher = {{Wiley}}, title = {{{New Column Design to Enhance Flexibility: Concept for Hydrodynamic Characterization}}}, doi = {{10.1002/cite.202000055}}, volume = {{92}}, year = {{2020}}, } @article{47575, abstract = {{AbstractDue to the increasing share of renewable energies in the power sector, the need for energy storage and flexible performance is rising. This study provides an in‐depth investigation of the flexibility of a Power‐to‐Gas plant for the production of synthetic natural gas. Model‐based analysis is conducted for the individual technologies PEM electrolysis, MEA absorption and fixed‐bed methanation as well as for the continuously operated process. This study reveals that the Power‐to‐Gas plant offers a capacity flexibility of 87–125 %, corresponding to 4.79–6.88 MW electrical input power.}}, author = {{Herrmann, Felix and Grünewald, Marcus and Riese, Julia}}, issn = {{0009-286X}}, journal = {{Chemie Ingenieur Technik}}, keywords = {{Industrial and Manufacturing Engineering, General Chemical Engineering, General Chemistry}}, number = {{12}}, pages = {{1983--1991}}, publisher = {{Wiley}}, title = {{{Flexibility of Power‐to‐Gas Plants: A Case Study}}}, doi = {{10.1002/cite.202000063}}, volume = {{92}}, year = {{2020}}, } @article{47573, abstract = {{AbstractFlexibility receives increased interest in chemical engineering and is discussed as one measure to deal with upcoming challenges for the chemical industry. In this paper, different types of flexibility are presented, and flexibility needs are illustrated. The focus is on the evaluation and classification of available solutions to enhance flexibility. Solutions and future challenges across all length scales of chemical engineering are discussed: from tailored catalyst properties to decoupling of processes by means of storage.}}, author = {{Riese, Julia and Grünewald, Marcus}}, issn = {{0009-286X}}, journal = {{Chemie Ingenieur Technik}}, keywords = {{Industrial and Manufacturing Engineering, General Chemical Engineering, General Chemistry}}, number = {{12}}, pages = {{1887--1897}}, publisher = {{Wiley}}, title = {{{Challenges and Opportunities to Enhance Flexibility in Design and Operation of Chemical Processes}}}, doi = {{10.1002/cite.202000057}}, volume = {{92}}, year = {{2020}}, } @article{47576, abstract = {{AbstractA method is proposed to evaluate capacity potentials in continuously operated chemical processes. In the main part of the analysis, the operating windows of the equipment are examined based on detailed steady‐state simulations. The method is applied to a case study of the production process of ethylene oxide as a large‐scale commodity chemical. Results show the limitations continuously operated processes are confronted with. However, opportunities to enlarge or shift the operating window of apparatuses applied are determined.}}, author = {{Bruns, Bastian and Grünewald, Marcus and Riese, Julia}}, issn = {{0009-286X}}, journal = {{Chemie Ingenieur Technik}}, keywords = {{Industrial and Manufacturing Engineering, General Chemical Engineering, General Chemistry}}, number = {{12}}, pages = {{2005--2015}}, publisher = {{Wiley}}, title = {{{Analysis of Capacity Potentials in Continuously Operated Chemical Processes}}}, doi = {{10.1002/cite.202000053}}, volume = {{92}}, year = {{2020}}, } @article{45955, author = {{Akrivis, Georgios and Feischl, Michael and Kovács, Balázs and Lubich, Christian}}, issn = {{0025-5718}}, journal = {{Mathematics of Computation}}, keywords = {{Applied Mathematics, Computational Mathematics, Algebra and Number Theory}}, number = {{329}}, pages = {{995--1038}}, publisher = {{American Mathematical Society (AMS)}}, title = {{{Higher-order linearly implicit full discretization of the Landau–Lifshitz–Gilbert equation}}}, doi = {{10.1090/mcom/3597}}, volume = {{90}}, year = {{2020}}, } @article{53270, author = {{Soleymani, Mohammad and Santamaria, Ignacio and Schreier, Peter J.}}, issn = {{0018-9545}}, journal = {{IEEE Transactions on Vehicular Technology}}, keywords = {{Electrical and Electronic Engineering, Computer Networks and Communications, Aerospace Engineering, Automotive Engineering}}, number = {{10}}, pages = {{11632--11645}}, publisher = {{Institute of Electrical and Electronics Engineers (IEEE)}}, title = {{{Improper Gaussian Signaling for the $K$-User MIMO Interference Channels With Hardware Impairments}}}, doi = {{10.1109/tvt.2020.3015558}}, volume = {{69}}, year = {{2020}}, } @article{53415, abstract = {{AbstractGiven a closed orientable hyperbolic manifold of dimension $$\ne 3$$ ≠ 3 we prove that the multiplicity of the Pollicott-Ruelle resonance of the geodesic flow on perpendicular one-forms at zero agrees with the first Betti number of the manifold. Additionally, we prove that this equality is stable under small perturbations of the Riemannian metric and simultaneous small perturbations of the geodesic vector field within the class of contact vector fields. For more general perturbations we get bounds on the multiplicity of the resonance zero on all one-forms in terms of the first and zeroth Betti numbers. Furthermore, we identify for hyperbolic manifolds further resonance spaces whose multiplicities are given by higher Betti numbers. }}, author = {{Küster, Benjamin and Weich, Tobias}}, issn = {{0010-3616}}, journal = {{Communications in Mathematical Physics}}, keywords = {{Mathematical Physics, Statistical and Nonlinear Physics}}, number = {{2}}, pages = {{917--941}}, publisher = {{Springer Science and Business Media LLC}}, title = {{{Pollicott-Ruelle Resonant States and Betti Numbers}}}, doi = {{10.1007/s00220-020-03793-2}}, volume = {{378}}, year = {{2020}}, } @article{41022, author = {{Kirchhof, Manuel and Gugeler, Katrin and Fischer, Felix Richard and Nowakowski, Michał and Bauer, Alina and Alvarez-Barcia, Sonia and Abitaev, Karina and Schnierle, Marc and Qawasmi, Yaseen and Frey, Wolfgang and Baro, Angelika and Estes, Deven P. and Sottmann, Thomas and Ringenberg, Mark R. and Plietker, Bernd and Bauer, Matthias and Kästner, Johannes and Laschat, Sabine}}, issn = {{0276-7333}}, journal = {{Organometallics}}, keywords = {{Inorganic Chemistry, Organic Chemistry, Physical and Theoretical Chemistry}}, number = {{17}}, pages = {{3131--3145}}, publisher = {{American Chemical Society (ACS)}}, title = {{{Experimental and Theoretical Study on the Role of Monomeric vs Dimeric Rhodium Oxazolidinone Norbornadiene Complexes in Catalytic Asymmetric 1,2- and 1,4-Additions}}}, doi = {{10.1021/acs.organomet.0c00310}}, volume = {{39}}, year = {{2020}}, } @article{41020, author = {{Gregori, Bernhard J. and Nowakowski, Michał and Schoch, Anke and Pöllath, Simon and Zweck, Josef and Bauer, Matthias and Jacobi von Wangelin, Axel}}, issn = {{1867-3880}}, journal = {{ChemCatChem}}, keywords = {{Inorganic Chemistry, Organic Chemistry, Physical and Theoretical Chemistry, Catalysis}}, number = {{21}}, pages = {{5359--5363}}, publisher = {{Wiley}}, title = {{{Stereoselective Chromium‐Catalyzed Semi‐Hydrogenation of Alkynes}}}, doi = {{10.1002/cctc.202000994}}, volume = {{12}}, year = {{2020}}, }