@article{35831,
  abstract     = {{Videografien eigenen Unterrichts sind ein mögliches methodisches Werkzeug zur Förderung der professionellen Kompetenz angehender Lehrkräfte, das allerdings innerhalb der Lehramtsausbildung noch nicht breit implementiert
ist. Ein möglicher Grund hierfür könnte neben organisatorischen Herausforderungen auch in einer geringen Akzeptanz von Eigenvideografien durch Lehramtsstudierende liegen. Um besser abschätzen zu können, mit welchen Voraussetzungen affektiv-emotionaler Art bei einer breiteren Implementierung im Lehramtsstudium gerechnet werden kann, wurden N = 938 Lehramtsstudierende im Masterstudium an der Universität Paderborn zu ihren Emotionen und Bereitschaften zur Arbeit mit Eigenvideografien befragt. Dabei wurde auch erfasst, wie sich diese je nach bestehenden
Erfahrungen zur Arbeit mit Videografien unterscheiden. In den Ergebnissen zeigen sich kaum affektiv-emotionale Reaktionen zur Eigenvideografie, und wenn, vor allem Gefühle der Unsicherheit. Zu beachten ist, dass zwar bei gut der Hälfte der Studierenden eine eher hohe generelle Bereitschaft zur Eigenvideografie besteht, eine konkrete Intention bzw. eine konkrete Volition zur Videografie aber geringer ist. Die ca. 10 % der Studierenden mit Eigenvideografieerfahrung im Studium zeigen erwartungsgemäß höhere Bereitschaften, aber unerwartet keine signifikant positiveren Emotionen. Insgesamt verdeutlichen die Ergebnisse, dass bzgl. der Akzeptanz der Studierenden ein höheres Potenzial zur Implementation von Eigenvideografien im Studium vorliegt, als aktuell ausgeschöpft wird.}},
  author       = {{Vogelsang, Christoph and Pollmeier, Pascal and Gockeln, Theresa and Rogge, Tim}},
  journal      = {{Zeitschrift für Bildungsforschung}},
  keywords     = {{Lehrerbildung, Videografie, Praxissemester, Emotionen, Akzeptanz}},
  pages        = {{7--31}},
  publisher    = {{Springer}},
  title        = {{{Zu unangenehm, zu viel Aufwand oder keine Möglichkeit? – Emotionen und Bereitschaft von Lehramtsstudierenden zur Videografie eigenen Unterrichts}}},
  doi          = {{10.1007/s35834-022-00378-y}},
  volume       = {{13}},
  year         = {{2023}},
}

@article{40513,
  abstract     = {{Geometric-phase dielectric meta-lenses made of silicon with high numerical aperture and short focal lengths are fabricated and characterised. For circularly polarised light, the same meta-lens can act as a converging or diverging lens, depending on the handedness of the circular polarisation. This effect enables application for optical tweezers that trap or release µm-size polymer beads floating in a microfluidic channel on demand. An electrically addressable polarisation converter based on liquid crystals may be used to switch between the two states of polarisation, at which the light transmitted through the meta-lens is focused (trapping) or defocussed (releasing), respectively.}},
  author       = {{Geromel, René and Rennerich, Roman and Zentgraf, Thomas and Kitzerow, Heinz-Siegfried}},
  journal      = {{Liquid Crystals}},
  number       = {{7-10}},
  pages        = {{1193--1203}},
  publisher    = {{Taylor & Francis}},
  title        = {{{Geometric-phase metalens to be used for tunable optical tweezers in microfluidics}}},
  doi          = {{10.1080/02678292.2023.2171146}},
  volume       = {{50}},
  year         = {{2023}},
}

@inproceedings{62812,
  abstract     = {{Attributing features of electrochemical impedance spectra to electrochemical phenomena is both crucial and frequently ambiguous. To elucidate the origin of the ohmic part of the spectrum, activated carbon electrodes were prepared with different contents of polyacrylic acid as binder. Their impedance spectra and cyclic voltammograms were recorded using sulfuric acid of five different concentrations as the electrolyte. To distinguish electrolyte resistance and resistances related to the activated carbon layer of the electrode, the specific electrolyte conductivity was independently measured and compared against the ohmic part of the electrochemical impedance spectra (EIS). The capacitive cyclic voltammograms show larger resistive contributions with higher scan rate and lower electrolyte conductivity. Comparing the ohmic part of the EIS to the specific resistance of the electrolyte, a linear function with no statistically significant offset was found. The ohmic part of the EIS, thus, reflects the electrolyte resistance, not that of the carbon electrode.}},
  author       = {{Reinke, Sebastian and Khamitsevich, Vera and Röth, Oliver and Linnemann, Julia}},
  booktitle    = {{2023 International Workshop on Impedance Spectroscopy (IWIS)}},
  keywords     = {{electrochemical impedance spectroscopy, supercapacitors, carbon}},
  publisher    = {{IEEE}},
  title        = {{{Assessment of the Physicochemical Meaning of the Ohmic Series Resistance Observed for High Frequencies in Electrochemical Impedance Spectra}}},
  doi          = {{10.1109/iwis61214.2023.10302764}},
  year         = {{2023}},
}

@article{61847,
  abstract     = {{<jats:p>Hydrothermal carbonization of trehalose, in contrast to other saccharides, leads to the formation of microspheres with a bimodal size distribution. The microspheres develop hierarchical porosity with micro-, meso-, and macro-pores after pyrolysis.</jats:p>}},
  author       = {{Wortmann, Martin and Keil, Waldemar and Diestelhorst, Elise and Westphal, Michael and Haverkamp, René and Brockhagen, Bennet and Biedinger, Jan and Bondzio, Laila and Weinberger, Christian and Baier, Dominik and Tiemann, Michael and Hütten, Andreas and Hellweg, Thomas and Reiss, Günter and Schmidt, Claudia and Sattler, Klaus and Frese, Natalie}},
  issn         = {{2046-2069}},
  journal      = {{RSC Advances}},
  number       = {{21}},
  pages        = {{14181--14189}},
  publisher    = {{Royal Society of Chemistry (RSC)}},
  title        = {{{Hard carbon microspheres with bimodal size distribution and hierarchical porosity <i>via</i> hydrothermal carbonization of trehalose}}},
  doi          = {{10.1039/d3ra01301d}},
  volume       = {{13}},
  year         = {{2023}},
}

@article{61854,
  author       = {{Fery, Andreas and Gradzielski, Michael and Richtering, Walter and Schmidt, Claudia}},
  issn         = {{0303-402X}},
  journal      = {{Colloid and Polymer Science}},
  number       = {{7}},
  pages        = {{681--683}},
  publisher    = {{Springer Science and Business Media LLC}},
  title        = {{{Colloid Science—as modern as ever}}},
  doi          = {{10.1007/s00396-023-05145-7}},
  volume       = {{301}},
  year         = {{2023}},
}

@misc{61855,
  booktitle    = {{Colloid and Polymer Science}},
  editor       = {{Fery, Andreas and Gradzielski, Michael and Richtering, Walter and Schmidt, Claudia}},
  location     = {{Berlin}},
  number       = {{7}},
  publisher    = {{Springer}},
  title        = {{{Colloid and Polymer Science, Special Issue: 100 Years Colloid Society / Colloid Science - as Modern as Ever}}},
  volume       = {{301}},
  year         = {{2023}},
}

@article{62097,
  abstract     = {{<jats:title>Abstract</jats:title><jats:p>Polystyrolproben werden mit Eisen(III)chlorid und weißen LEDs zu Oligomeren und Benzoylprodukten; ein Wolframatkatalysator invertiert die Absolutkonfiguration an sp<jats:sup>3</jats:sup>‐Kohlenstoffzentren; gelöstes Rätsel um eine symmetrieverbotene konrotatorische 14‐Elektronen‐Elektrocyclisierung; Polycarbonate, die sich ohne Lösungsmittel recyceln lassen: Highlights von Oktober 2021 bis 2022.</jats:p>}},
  author       = {{Breugst, Martin and Andexer, Jennifer N. and Beil, Sebastian B. and Breinbauer, Rolf and Dumele, Oliver and Ernst, Martin and Gellrich, Urs and Germer, Philipp and Giese, Michael and Gulder, Tobias A. M. and Huy, Peter and Hüttel, Wolfgang and Kath‐Schorr, Stephanie and Körber, Karsten and Kordes, Markus and Kuttruff, Christian and Lindel, Thomas and Meier, Robin and Myllek, Sebastian and Schaschke, Norbert and Pfrengle, Fabian and Pietruszka, Jörg and Sebode, Hanna and Senge, Mathias O. and Storch, Golo and Straub, Bernd F. and Teichert, Johannes and Waldvogel, Siegfried R. and Werner, Thomas and Winter, Christian}},
  issn         = {{1439-9598}},
  journal      = {{Nachrichten aus der Chemie}},
  number       = {{3}},
  pages        = {{40--66}},
  publisher    = {{Wiley}},
  title        = {{{Trendbericht Organische Chemie 2023}}},
  doi          = {{10.1002/nadc.20234135542}},
  volume       = {{71}},
  year         = {{2023}},
}

@article{62094,
  author       = {{Yemback, Pierre and Eyong, Kenneth O. and Efange, Noella M. and Kamdem, Michael HK. and Ndinteh, Derek T. and Odumosu, Patricia O. and Folefoc, Gabriel N. and Ayong, Lawrence and Werner, Thomas}},
  issn         = {{1874-3900}},
  journal      = {{Phytochemistry Letters}},
  keywords     = {{T4}},
  pages        = {{26--35}},
  publisher    = {{Elsevier BV}},
  title        = {{{Lupane derivatives: Design, isolation, synthesis and evaluation of antiplasmodial activity against Plasmodium falciparum 3D7 strain}}},
  doi          = {{10.1016/j.phytol.2023.06.009}},
  volume       = {{57}},
  year         = {{2023}},
}

@article{62096,
  abstract     = {{<jats:title>Abstract</jats:title><jats:p>The biocatalytic kinetic resolution of cyclic carbonates derived from glycerol is reported. A selection of 26 esterases and lipases was tested for the asymmetric hydrolysis of the model substrate (epichlorohydrin carbonate) in aqueous medium. Among them, Pig Liver Esterase and Novozym® 435 showed the best selectivity with <jats:italic>E</jats:italic>=38 and 49, respectively. Both enzymes were employed for the conversion of 12 glycerol derivatives under optimized conditions. The resolution of halogenated carbonates afforded the unconverted enantiomer in up to &gt;99 : 1 <jats:italic>er</jats:italic>. Furthermore, Novozym® 435 was successfully recycled 10 times without significant loss of activity. Upscaling and isolation of the chiral carbonate was also demonstrated. Subsequent conversion of this chiral building block allowed the direct one‐pot synthesis of (<jats:italic>S</jats:italic>)‐Guaifenesin, (<jats:italic>S</jats:italic>)‐Mephenesin and (<jats:italic>S</jats:italic>)‐Chlorphenesin in up to 89 % yield and 94 : 6 <jats:italic>er</jats:italic>.</jats:p>}},
  author       = {{Terazzi, Constanza and Spannenberg, Anke and von Langermann, Jan and Werner, Thomas}},
  issn         = {{1867-3880}},
  journal      = {{ChemCatChem}},
  keywords     = {{T1, T4, CSSD}},
  number       = {{19}},
  publisher    = {{Wiley}},
  title        = {{{Chemoenzymatic Synthesis of Chiral Building Blocks Based on the Kinetic Resolution of Glycerol‐Derived Cyclic Carbonates}}},
  doi          = {{10.1002/cctc.202300917}},
  volume       = {{15}},
  year         = {{2023}},
}

@article{62095,
  author       = {{Tönjes, Jan and Kell, Lukas and Werner, Thomas}},
  issn         = {{1523-7060}},
  journal      = {{Organic Letters}},
  keywords     = {{T2, CSSD}},
  number       = {{51}},
  pages        = {{9114--9118}},
  publisher    = {{American Chemical Society (ACS)}},
  title        = {{{Organocatalytic Stereospecific Appel Reaction}}},
  doi          = {{10.1021/acs.orglett.3c03463}},
  volume       = {{25}},
  year         = {{2023}},
}

@article{62810,
  abstract     = {{Cobalt iron containing layered double hydroxides (LDHs) and spinels are promising catalysts for the electrochemical oxygen evolution reaction (OER). Towards development of better performing catalysts, the precise tuning of mesostructural features such as pore size is desirable, but often hard to achieve. Herein, a computer‐controlled microemulsion‐assisted co‐precipitation (MACP) method at constant pH is established and compared to conventional co‐precipitation. With MACP, the particle growth is limited and through variation of the constant pH during synthesis the pore size of the as‐prepared catalysts is controlled, generating materials for the systematic investigation of confinement effects during OER. At a threshold pore size, overpotential increased significantly. Electrochemical impedance spectroscopy (EIS) indicated a change in OER mechanism, involving the oxygen release step. It is assumed that in smaller pores the critical radius for gas bubble formation is not met and therefore a smaller charge‐transfer resistance is observed for medium frequencies.}},
  author       = {{Rabe, Anna and Jaugstetter, Maximilian and Hiege, Felix and Cosanne, Nicolas and Ortega, Klaus Friedel and Linnemann, Julia and Tschulik, Kristina and Behrens, Malte}},
  issn         = {{1864-5631}},
  journal      = {{ChemSusChem}},
  keywords     = {{electrocatalysis, oxygen evolution reaction, cobalt spinel, cobalt hydroxide, LDH}},
  number       = {{10}},
  publisher    = {{Wiley}},
  title        = {{{Tailoring Pore Size and Catalytic Activity in Cobalt Iron Layered Double Hydroxides and Spinels by Microemulsion‐Assisted pH‐Controlled Co‐Precipitation}}},
  doi          = {{10.1002/cssc.202202015}},
  volume       = {{16}},
  year         = {{2023}},
}

@article{62827,
  author       = {{Mahnel, Sabrina and Bannert, Franz and Zimmermann, Johannes and Grunder, Sergio and Demmig, Martin and Lomolino, Silvia and Grundmeier, Guido}},
  issn         = {{0143-7496}},
  journal      = {{International Journal of Adhesion and Adhesives}},
  publisher    = {{Elsevier BV}},
  title        = {{{Open time studies of cold curing polyurethane adhesives using a standardized spatula test setup suitable for near-production conditions}}},
  doi          = {{10.1016/j.ijadhadh.2023.103560}},
  volume       = {{129}},
  year         = {{2023}},
}

@phdthesis{62825,
  author       = {{Pollmeier, Pascal}},
  title        = {{{Umgang mit Evidenzen angehender Lehrkräfte in den Naturwissenschaften: Epistemologie in der Lehrkräfteausbildung}}},
  year         = {{2023}},
}

@article{62854,
  abstract     = {{Highly selective rare-earth separation has become increasingly important due to the indispensable role of these elements in various cutting-edge technologies including clean energy. However, the similar physicochemical properties of rare-earth elements (REEs) render their separation very challenging, and the development of new selective receptors for these elements is potentially of very considerable economic and environmental importance. Herein, we report the development of a series of 4-phosphoryl pyrazolone receptors for the selective separation of trivalent lanthanum, europium, and ytterbium as the representatives of light, middle, and heavy REEs, respectively. X-ray crystallography studies were employed to obtain solid-state structures across 11 of the resulting complexes, allowing comparative structure–function relationships to be probed, including the effect of lanthanide contraction that occurs along the series from lanthanum to europium to ytterbium and which potentially provides a basis for REE ion separation. In addition, the influence of ligand structure and lipophilicity on lanthanide binding and selectivity was systematically investigated via n-octanol/water distribution and liquid–liquid extraction (LLE) studies. Corresponding stoichiometry relationships between solid and solution states were well established using slope analyses. The results provide new insights into some fundamental lanthanide coordination chemistry from a separation perspective and establish 4-phosphoryl pyrazolone derivatives as potential practical extraction reagents for the selective separation of REEs in the future.}},
  author       = {{Zhang, Jianfeng and Wenzel, Marco and Schnaars, Kathleen and Hennersdorf, Felix and Lindoy, Leonard F. and Weigand, Jan J.}},
  issn         = {{0020-1669}},
  journal      = {{Inorganic Chemistry}},
  number       = {{7}},
  pages        = {{3212--3228}},
  publisher    = {{American Chemical Society (ACS)}},
  title        = {{{Highly Tunable 4-Phosphoryl Pyrazolone Receptors for Selective Rare-Earth Separation}}},
  doi          = {{10.1021/acs.inorgchem.2c04221}},
  volume       = {{62}},
  year         = {{2023}},
}

@article{62944,
  abstract     = {{<jats:title>Abstract</jats:title><jats:p>Monitoring early stages of polymeric deposit formation and its prevention were studied by in‐situ electrochemical impedance spectroscopy (EIS) in a continuously operating reactor employed for polymer production. An EIS flow cell was designed and employed during the emulsion polymerization of vinyl acetate. The electrochemical analysis of the complex impedance at the solution/reactor interface allows the time‐resolved detection of film formation processes. In comparison to oxide‐covered stainless steel, an anti‐adhesive sol‐gel coated alloy showed a significant inhibition of poly(vinyl acetate) fouling. The EIS‐based approach proved to be a valuable tool for monitoring both thin barrier film performance and fouling processes under harsh process conditions.</jats:p>}},
  author       = {{Neßlinger, Vanessa and Rust, Sören and Atlanov, Jan and Pauer, Werner and Grundmeier, Guido}},
  issn         = {{0009-286X}},
  journal      = {{Chemie Ingenieur Technik}},
  number       = {{3}},
  pages        = {{291--299}},
  publisher    = {{Wiley}},
  title        = {{{Monitoring Polymeric Fouling in a Continuous Reactor by Electrochemical Impedance Spectroscopy}}},
  doi          = {{10.1002/cite.202300032}},
  volume       = {{96}},
  year         = {{2023}},
}

@inproceedings{62968,
  author       = {{Pollmeier, Pascal and Vogelsang, Christoph and Rogge, Tim}},
  keywords     = {{Emotionen, Video, Eigenvideografie, Studierende, Lehramt, Praxissemester, Unterricht}},
  location     = {{Essen}},
  title        = {{{Zwischen Angst und Vorfreude – Emotionales Erleben Lehramtsstudierender bei der Arbeit mit Eigenvideografien}}},
  year         = {{2023}},
}

@inproceedings{62963,
  author       = {{Pollmeier, Pascal and Fechner, Sabine}},
  booktitle    = {{15th Conference of The European Science Education Research Association (ESERA)}},
  keywords     = {{Daten, anomale Daten, Auswertung, Umgang mit Daten, Experiment}},
  location     = {{Cappadocia}},
  title        = {{{Depicting the confrontation with anomalous data in Models of Data}}},
  year         = {{2023}},
}

@inproceedings{62955,
  author       = {{Fechner, Sabine and Stroop, Dietlinde and Ponath, Jonas and Pollmeier, Pascal}},
  booktitle    = {{Herbsttagung des Deutscher Verein zur Förderung des mathematischen und naturwissenschaftlichen Unterrichts (MNU) }},
  keywords     = {{Digital, Digitalisierung, Messsensoren, Lehrkräfte, Chemie, Nachhaltigkeit, Bildung für nachhaltige Entwicklung, BNE}},
  location     = {{Dortmund}},
  title        = {{{Digitale Messwerterfassung im Chemieunterricht – Einblicke in die Entwicklung von Lernumgebungen und digitale Netzwerke}}},
  year         = {{2023}},
}

@article{37613,
  abstract     = {{<jats:p>Chemical phenomena are only observable on a macroscopic level, whereas they are explained by entities on a non-visible level. Students often demonstrate limited ability to link these different levels. Augmented reality (AR) offers the possibility to increase contiguity by embedding virtual models into hands-on experiments. Therefore, this paper presents a pre- and post-test study investigating how learning and cognitive load are influenced by AR during hands-on experiments. Three comparison groups (AR, animation and filmstrip), with a total of N = 104 German secondary school students, conducted and explained two hands-on experiments. Whereas the AR group was allowed to use an AR app showing virtual models of the processes on the submicroscopic level during the experiments, the two other groups were provided with the same dynamic or static models after experimenting. Results indicate no significant learning gain for the AR group in contrast to the two other groups. The perceived intrinsic cognitive load was higher for the AR group in both experiments as well as the extraneous load in the second experiment. It can be concluded that AR could not unleash its theoretically derived potential in the present study.</jats:p>}},
  author       = {{Peeters, Hendrik and Habig, Sebastian and Fechner, Sabine}},
  issn         = {{2414-4088}},
  journal      = {{Multimodal Technologies and Interaction}},
  keywords     = {{augmented reality, chemistry education, models, experiment, cognitive load}},
  number       = {{2}},
  publisher    = {{MDPI AG}},
  title        = {{{Does augmented reality help to understand chemical phenomena during hands-on experiments?–Implications for cognitive load and learning}}},
  doi          = {{10.3390/mti7020009}},
  volume       = {{7}},
  year         = {{2023}},
}

@inproceedings{63010,
  author       = {{Wedekind, Lisa and Pollmeier, Pascal and Fechner, Sabine}},
  booktitle    = {{15th Conference of the European Science Education Research Association (ESERA 2023)}},
  location     = {{Cappadocia, Türkiye}},
  title        = {{{Making use of analogical transfer in context-based learning}}},
  year         = {{2023}},
}