@article{37014,
  abstract     = {{Jugend wird als eine eigenständige Lebens- und Entwicklungsphase betrachtet. Für junge Geflüchtete stellt sie eine besondere Herausforderung dar. Für sie geht es nicht nur um die Bewältigung alterstypischer Entwicklungsaufgaben, sondern auch um eine gelingende Integration in die Aufnahmegesellschaft. Dazu gehören u. a. das Kennenlernen und die Aneignung von Sprache, Kultur und Werten, genauso die Erschließung von Alltagsräumen und Lebenswelten, z. B. von Freizeitmöglichkeiten, Bildung und von beruflichen Erfahrungsräumen. Die Frage zur gelingenden Integration und Gestaltung von Lebenswelten junger Geflüchteter wurde im Kontext der wissenschaftlichen Begleitung des Projekts „angekommen in Deiner Stadt“ der Walter Blüchert Stiftung genauer untersucht. Der Beitrag referiert u. a. die Ergebnisse einer in diesem Kontext durchgeführten egozentrierten Netzwerkanalyse. Die Ergebnisse zeigen, dass die Angebote den Rahmen für den Aufbau und die Erweiterung kommunikativer, sozialer Netzwerke darstellen und lebensweltliche Zugänge öffnen.}},
  author       = {{Heisler, Dietmar and Schemmer, Susanne}},
  journal      = {{BWP@ Berufs- und Wirtschaftspädagogik - online}},
  keywords     = {{Jugend, Lebensweltorientierung, soziale Netzwerke, geflüchtete Jugendliche, Lebenslagen junger Geflüchteter und Zugewanderter}},
  pages        = {{1--23}},
  title        = {{{Lebenswelten und soziale Netzwerke von jungen Geflüchteten und Zugewanderten am Übergang in Ausbildung und Beruf.}}},
  year         = {{2020}},
}

@book{36992,
  editor       = {{Heisler, Dietmar}},
  pages        = {{237}},
  publisher    = {{wbv}},
  title        = {{{Digitalisierung am Übergang Schule Beruf. Ansätze und Perspektiven in Arbeitsdomänen und beruflicher Förderung}}},
  doi          = {{ 10.3278/6004725w}},
  volume       = {{56}},
  year         = {{2020}},
}

@article{19190,
  abstract     = {{Polarons in dielectric crystals play a crucial role for applications in integrated electronics and optoelectronics. In this work, we use density-functional theory and Green's function methods to explore the microscopic structure and spectroscopic signatures of electron polarons in lithium niobate (LiNbO3). Total-energy calculations and the comparison of calculated electron paramagnetic resonance data with available measurements reveal the formation of bound 
polarons at Nb_Li antisite defects with a quasi-Jahn-Teller distorted, tilted configuration. The defect-formation energies further indicate that (bi)polarons may form not only at 
Nb_Li antisites but also at structures where the antisite Nb atom moves into a neighboring empty oxygen octahedron. Based on these structure models, and on the calculated charge-transition levels and potential-energy barriers, we propose two mechanisms for the optical and thermal splitting of bipolarons, which provide a natural explanation for the reported two-path recombination of bipolarons. Optical-response calculations based on the Bethe-Salpeter equation, in combination with available experimental data and new measurements of the optical absorption spectrum, further corroborate the geometries proposed here for free and defect-bound (bi)polarons.}},
  author       = {{Schmidt, Falko and Kozub, Agnieszka L. and Biktagirov, Timur and Eigner, Christof and Silberhorn, Christine and Schindlmayr, Arno and Schmidt, Wolf Gero and Gerstmann, Uwe}},
  issn         = {{2643-1564}},
  journal      = {{Physical Review Research}},
  number       = {{4}},
  publisher    = {{American Physical Society}},
  title        = {{{Free and defect-bound (bi)polarons in LiNbO3: Atomic structure and spectroscopic signatures from ab initio calculations}}},
  doi          = {{10.1103/PhysRevResearch.2.043002}},
  volume       = {{2}},
  year         = {{2020}},
}

@article{41432,
  author       = {{Fuchs, Christian}},
  journal      = {{tripleC: Communication, Capitalism & Critique}},
  number       = {{1}},
  pages        = {{1--285}},
  title        = {{{Communicative Socialism/Digital Socialism}}},
  doi          = {{https://doi.org/10.31269/triplec.v18i1.1149}},
  volume       = {{18}},
  year         = {{2020}},
}

@article{42485,
  author       = {{Fuchs, Christian}},
  journal      = {{tripleC: Communication, Capitalism & Critique}},
  number       = {{2}},
  pages        = {{508--509}},
  title        = {{{Preface to Manfred Knoche’s Article “Science Communication and Open Access: The Critique of the Political Economy of Capitalist Academic Publishers as Ideology Critique”}}},
  doi          = {{https://doi.org/10.31269/triplec.v18i2.1183}},
  volume       = {{18}},
  year         = {{2020}},
}

@article{23854,
  abstract     = {{Micropatterned nanoporous aluminum oxide arrays are prepared on silicon wafer substrates by using photopolymerized poly(dimethylacrylamide) hydrogels as porogenic matrices. Hydrogel micropatterns are fabricated by spreading the prepolymer mixture on the substrate, followed by UV photopolymerization through a micropatterned mask. The hydrogel is covalently bonded to the substrate surface. Al2O3 is produced by swelling the hydrogel in a saturated aluminum nitrate solution and subsequent thermal conversion/calcination. As a result, micropatterned porous Al2O3 microdots with heights in µm range and large specific surface areas up to 274 m2 g−1 are obtained. Hence, the hydrogel fulfills a dual templating function, namely micropatterning and nanoporosity generation. The impact of varying the photopolymerization time on the properties of the products is studied. Samples are characterized by light and confocal laser scanning microscopy, scanning electron microscopy, energy-dispersive x-ray spectrometry, and Kr physisorption analysis.}},
  author       = {{Chen, Zimei and Kuckling, Dirk and Tiemann, Michael}},
  issn         = {{0957-4484}},
  journal      = {{Nanotechnology}},
  publisher    = {{IOP Publishing}},
  title        = {{{Nanoporous aluminum oxide micropatterns prepared by hydrogel templating}}},
  doi          = {{10.1088/1361-6528/aba710}},
  volume       = {{31}},
  year         = {{2020}},
}

@article{25898,
  abstract     = {{Metal oxide inverse opals are interesting for various applications. To achieve highly ordered inverse opal structures, one important issue during the colloidal crystal templating procedure is to form a stable precursor network before the template loses its structural integrity at high temperature. Using poly(methyl methacrylate), PMMA, colloidal crystal templates, it is essential to consider the physical and chemical changes of the precursors induced by the changes of PMMA during the thermal conversion. For a systematic investigation of this matter, we synthesized a variety of metal oxide inverse opals from the respective metal nitrates, including Cr2O3, Ga2O3, Fe2O3, In2O3, CuO, CeO2, and ZnO, to compare the effect of various modifications of precursors on the structural and optical properties. When the nitrate precursors have a lower thermal stability than the PMMA template, we have modified the metal nitrates by chelating or by polyacrylamide gelation to form more stable precursor networks.}},
  author       = {{Zhang, Xuyang and Weinberger, Christian and Amrehn, Sabrina and Wu, Xia and Tiemann, Michael and Wagner, Thorsten}},
  issn         = {{1434-1948}},
  journal      = {{European Journal of Inorganic Chemistry}},
  pages        = {{3402--3407}},
  title        = {{{Synthesis of Metal Oxide Inverse Opals from Metal Nitrates by PMMA Colloidal Crystal Templating}}},
  doi          = {{10.1002/ejic.202000517}},
  year         = {{2020}},
}

@article{25900,
  abstract     = {{The proton conduction properties of a phosphonato-sulfonate-based coordination polymer are studied by impedance spectroscopy using a single crystal specimen. Two distinct conduction mechanisms are identified. Water-mediated conductance along the crystal surface occurs by mass transport, as evidenced by a high activation energy (0.54 eV). In addition, intrinsic conduction by proton ′hopping′ through the interior of the crystal with a low activation energy (0.31 eV) is observed. This latter conduction is anisotropic with respect to the crystal structure and seems to occur through a channel along the c axis of the orthorhombic crystal. Proton conduction is assumed to be mediated by sulfonate groups and non-coordinating water molecules that are part of the crystal structure.}},
  author       = {{Javed, Ali and Wagner, Thorsten and Wöhlbrandt, Stephan and Stock, Norbert and Tiemann, Michael}},
  issn         = {{1439-4235}},
  journal      = {{ChemPhysChem}},
  pages        = {{605--609}},
  title        = {{{Proton Conduction in a Single Crystal of a Phosphonato‐Sulfonate‐Based Coordination Polymer: Mechanistic Insight}}},
  doi          = {{10.1002/cphc.202000102}},
  year         = {{2020}},
}

@article{25902,
  abstract     = {{This Special Issue on “Functional Nanoporous Materials” in the MDPI journal nanomaterials features seven original papers ...}},
  author       = {{Weinberger, Christian and Tiemann, Michael}},
  issn         = {{2079-4991}},
  journal      = {{Nanomaterials}},
  title        = {{{Functional Nanoporous Materials}}},
  doi          = {{10.3390/nano10040699}},
  year         = {{2020}},
}

@article{19189,
  abstract     = {{Density-functional theory calculations of (TiO2)n clusters (n = 1–5) in the gas phase and adsorbed on pristine graphene as well as graphene quantum dots are presented. The cluster adsorption is found to be dominated by van der Waals forces. The electronic structure and in particular the excitation energies of the bare clusters and the TiO2/graphene composites are found to vary largely in dependence on the size of the respective constituents. This holds in particular for the energy and the spatial localization of the highest occupied and lowest unoccupied molecular orbitals. In addition to a substantial gap narrowing, a pronounced separation of photoexcited electrons and holes is predicted in some instances. This is expected to prolong the lifetime of photoexcited carriers. Altogether, TiO2/graphene composites are predicted to be promising photocatalysts with improved electronic and photocatalytic properties compared to bulk TiO2.}},
  author       = {{Badalov, Sabuhi and Wilhelm, René and Schmidt, Wolf Gero}},
  issn         = {{0192-8651}},
  journal      = {{Journal of Computational Chemistry}},
  pages        = {{1921--1930}},
  publisher    = {{Willey}},
  title        = {{{Photocatalytic properties of            graphene‐supported            titania clusters from            density‐functional            theory}}},
  doi          = {{10.1002/jcc.26363}},
  year         = {{2020}},
}

@article{43747,
  abstract     = {{Vortices are topological objects representing the circular motion of a fluid. With their additional degree of freedom, the vorticity, they have been widely investigated in many physical systems and different materials for fundamental interest and for applications in data storage and information processing. Vortices have also been observed in non-equilibrium exciton-polariton condensates in planar semiconductor microcavities. There they appear spontaneously or can be created and pinned in space using ring-shaped optical excitation profiles. However, using the vortex state for information processing not only requires creation of a vortex but also efficient control over the vortex after its creation. Here we demonstrate a simple approach to control and switch a localized polariton vortex between opposite states. In our scheme, both the optical control of vorticity and its detection through the orbital angular momentum of the emitted light are implemented in a robust and practical manner.}},
  author       = {{Meier, Torsten and Ma, Xuekai and Berger, Bernd and Aßmann, Marc and Driben, Rodislav and Schneider, Christian and Höfling, Sven and Schumacher, Stefan}},
  journal      = {{Nature communications}},
  number       = {{1}},
  pages        = {{897}},
  publisher    = {{Nature Publishing Group UK}},
  title        = {{{Realization of all-optical vortex switching in exciton-polariton condensates}}},
  doi          = {{10.1038/s41467-020-14702-5}},
  volume       = {{11}},
  year         = {{2020}},
}

@article{16859,
  author       = {{Martin, Sven and Camberg, Alan A. and Tröster, Thomas}},
  issn         = {{2351-9789}},
  journal      = {{Procedia Manufacturing}},
  location     = {{virtually}},
  pages        = {{419--424}},
  publisher    = {{Elsevier}},
  title        = {{{Probability Distribution of Joint Point Loadings in Car Body Structures under Global Bending and Torsion}}},
  doi          = {{10.1016/j.promfg.2020.04.324}},
  year         = {{2020}},
}

@article{23797,
  abstract     = {{<jats:title>Abstract</jats:title>
<jats:p>Safety-relevant components in automobiles require materials that combine high strength with sufficient residual ductility and high-energy absorption. A graded thermo-mechanical treatment of the press-hardening steel 22MnB5 with graded microstructure can provide a material with such properties. Different austenitization temperatures, cooling and forming conditions within a sheet part lead to the development of microstructures with mixed phase compositions. To determine the resulting phase contents in such graded processed parts, a large number of dilatometric tests are usually required. With a non-contact characterization method, it is possible to detect local phase transformations on an inhomogeneously treated flat steel specimen. For press-hardening steel after heat treatment and thermo-mechanical processing, correlations between austenitization temperature, hot deformation strain, microstructure, and hardness are established.</jats:p>}},
  author       = {{Reitz, Alexander and Grydin, Olexandr and Schaper, Mirko}},
  issn         = {{1073-5623}},
  journal      = {{Metallurgical and Materials Transactions A}},
  pages        = {{5628--5638}},
  publisher    = {{Springer}},
  title        = {{{Characterization of Phase Transformations During Graded Thermo-Mechanical Processing of Press-Hardening Sheet Steel 22MnB5}}},
  doi          = {{10.1007/s11661-020-05976-x}},
  year         = {{2020}},
}

@article{24573,
  abstract     = {{<jats:p>Al-Li based alloys are attractive materials for the aerospace industry. The twin-roll casting of such materials could provide properties not achievable by conventional direct-chill casting and downstream processing methods due to significantly higher solidification rates. An Al-Li-Cu-Mg-Zr alloy was twin-roll cast with the same alloy containing a small addition of Sc. The microstructure of as-cast materials and the influence of Sc on the behavior of the alloy at elevated temperatures were studied by means of light and electron microscopy and by resistivity measurements. A fine-grained structure was formed during twin-roll casting, but several surface and internal defects were found on the strips, which should be suppressed by a further adjustment of the casting conditions. The addition of Sc had a positive effect on grain size uniformity and microstructure stabilization at elevated temperatures, as shown by the precipitation of a fine dispersion of coherent Sc- and Zr-containing precipitates.</jats:p>}},
  author       = {{Grydin, Olexandr and Stolbchenko, Mykhailo and Schaper, Mirko and Belejová, Sára and Králík, Rostislav and Bajtošová, Lucia and Křivská, Barbora and Hájek, Michal and Cieslar, Miroslav}},
  issn         = {{2075-4701}},
  journal      = {{Metals}},
  number       = {{8}},
  title        = {{{New Twin-Roll Cast Al-Li Based Alloys for High-Strength Applications}}},
  doi          = {{10.3390/met10080987}},
  volume       = {{10}},
  year         = {{2020}},
}

@book{45662,
  author       = {{Lutz, Katharina and Offergeld, Jana and Freymuth, Nina and Arp, Anna Liza}},
  title        = {{{Gemeinsam Forschung gestalten. Handreichung zu partizipativer Forschung}}},
  year         = {{2020}},
}

@inproceedings{36546,
  author       = {{Meyer, Lena and Tabeling, Laura and Gasteiger, Hedwig and Bruns, Julia}},
  booktitle    = {{Beiträge zum Mathematikunterricht 2020}},
  editor       = {{Siller, Hans-Stefan and Weigel, Wolfgang and Wörler, Jan}},
  location     = {{Würzburg}},
  pages        = {{1253--1256}},
  publisher    = {{WTM-Verlag}},
  title        = {{{Interaktionen in mathematischen Spielsituationen in Kindertagesstätte und Familie}}},
  year         = {{2020}},
}

@inproceedings{36539,
  author       = {{Bruns, Julia}},
  booktitle    = {{Beiträge zum Mathematikunterricht 2020}},
  editor       = {{Siller, Hans-Stefan and Weigel, Wolfgang and Wörler, Jan}},
  location     = {{Würzburg}},
  pages        = {{1245--1248}},
  publisher    = {{WTM-Verlag}},
  title        = {{{Mathematisches Fachwissen von frühpädagogischen Fachpersonen im Spannungsfeld zwischen Disziplin- und Praxis}}},
  doi          = {{10.37626/GA9783959871402.0}},
  year         = {{2020}},
}

@article{45317,
  author       = {{Schemmer, Susanne Jutta and Heisler, Dietmar}},
  journal      = {{bwp@Berufs-und Wirtschaftspädagogik – online, (24.06.2020)}},
  number       = {{1-23}},
  title        = {{{Lebenswelten und soziale Netzwerke von jungen Geflüchteten und Zugewanderten am Übergang in Ausbildung und Beruf}}},
  volume       = {{38}},
  year         = {{2020}},
}

@article{45785,
  abstract     = {{In this paper, we implement the multidomain compact finite difference method to numerically study high dimensional chaos by considering the nine-dimensional Lorenz system. Most of the existing numerical methods converge slowly for this kind of problems and this results in inaccurate approximations. Though highly accurate, the compact finite difference method becomes less accurate for problems characterized by chaotic solutions, even with an increase in the number of grid points. As a result, in this work, we adopt the multidomain approach. This approach remarkably improves the results as well as the efficiency of the method.}},
  author       = {{Kouagou, N.J. and Dlamini, P.G. and Simelane, S.M.}},
  issn         = {{1110-0168}},
  journal      = {{Alexandria Engineering Journal}},
  keywords     = {{Multidomain, Compact finite difference, 9D Lorenz system}},
  number       = {{4}},
  pages        = {{2617--2625}},
  title        = {{{On the multi-domain compact finite difference relaxation method for high dimensional chaos: The nine-dimensional Lorenz system}}},
  doi          = {{https://doi.org/10.1016/j.aej.2020.04.025}},
  volume       = {{59}},
  year         = {{2020}},
}

@phdthesis{46152,
  abstract     = {{Die Dissertation beschäftigt sich mit dem Gebrauch von Präpositionen (z. B. an, für) und Präpositionalphrasen (z. B. an der Wand, für dich) durch Lernende des Deutschen als Fremdsprache (DaF). Es wird untersucht, welche ausgewählten Variablen den Gebrauch dieser Strukturen beeinflussen. Der Schwerpunkt liegt dabei auf Gebrauchsschwierigkeiten. Auf Basis lernersprachlicher Daten im digitalen, frei verfügbaren Lernerkorpus MERLIN (merlin-platform.eu) und unter Berücksichtigung grundlegender Annahmen aktueller Spracherwerbstheorien werden quantitativ ausgerichtete Fallstudien zu folgenden Einflussvariablen durchgeführt: Die Erstsprache der Lernenden, die Sprachkompetenz, die syntaktische Funktion der PP und der semantische Gehalt der Präposition. Die Arbeit bettet sich ein in die Lernerkorpusforschung an der Schnittstelle zur Zweit- und Fremdspracherwerbsforschung. Die Ergebnisse zeigen insgesamt für alle Einflussvariablen einen Effekt und bestätigen damit den Einfluss intralingualer sowie interlingualer Merkmale im Sprachgebrauch von Lernenden. Dabei wird deutlich, dass die Gebrauchsschwierigkeiten nicht quantitativer (Korrektheit), sondern eher qualitativer Natur (Fehlertypen) sind. Die Dissertation liefert empirisch fundierte Erkenntnisse zu Schwierigkeiten im Gebrauch von Präpositionen und PP durch DaF-Lernende, für die bisher systematische, korpusgestützte Untersuchungen fehlten. Die Arbeit zeigt dabei exemplarisch auf, wie Annahmen aus der Spracherwerbsforschung anhand von Lernerkorpusdaten überprüft und mögliche Einflussvariablen im Sprachgebrauch ermittelt werden können. Die Erkenntnisse sind auch für andere Forschungsfelder (u.a. Fremdsprachenunterricht und maschinelle Sprachverarbeitung) relevant. }},
  author       = {{Weber, Tassja}},
  keywords     = {{Deutsch als Fremdsprache, Korpuslinguistik, Lernerkorpora, Präpositionen, Präpositionalphrasen, Grammatik, Regressionsanalyse}},
  publisher    = {{Universität Mannheim}},
  title        = {{{Präpositionen und Deutsch als Fremdsprache: Quantitative Fallstudien im Lernerkorpus MERLIN}}},
  year         = {{2020}},
}