--- _id: '45868' abstract: - lang: eng text: Perfect vector vortex beams (PVVBs) have attracted considerable interest due to their peculiar optical features. PVVBs are typically generated through the superposition of perfect vortex beams, which suffer from the limited number of topological charges (TCs). Furthermore, dynamic control of PVVBs is desirable and has not been reported. We propose and experimentally demonstrate hybrid grafted perfect vector vortex beams (GPVVBs) and their dynamic control. Hybrid GPVVBs are generated through the superposition of grafted perfect vortex beams with a multifunctional metasurface. The generated hybrid GPVVBs possess spatially variant rates of polarization change due to the involvement of more TCs. Each hybrid GPVVB includes different GPVVBs in the same beam, adding more design flexibility. Moreover, these beams are dynamically controlled with a rotating half waveplate. The generated dynamic GPVVBs may find applications in the fields where dynamic control is in high demand, including optical encryption, dense data communication, and multiple particle manipulation. article_number: '3915' author: - first_name: Hammad full_name: Ahmed, Hammad last_name: Ahmed - first_name: Muhammad Afnan full_name: Ansari, Muhammad Afnan last_name: Ansari - first_name: Yan full_name: Li, Yan last_name: Li - first_name: Thomas full_name: Zentgraf, Thomas id: '30525' last_name: Zentgraf orcid: 0000-0002-8662-1101 - first_name: Muhammad Qasim full_name: Mehmood, Muhammad Qasim last_name: Mehmood - first_name: Xianzhong full_name: Chen, Xianzhong last_name: Chen citation: ama: Ahmed H, Ansari MA, Li Y, Zentgraf T, Mehmood MQ, Chen X. Dynamic control of hybrid grafted perfect vector vortex beams. Nature Communications. 2023;14(1). doi:10.1038/s41467-023-39599-8 apa: Ahmed, H., Ansari, M. A., Li, Y., Zentgraf, T., Mehmood, M. Q., & Chen, X. (2023). Dynamic control of hybrid grafted perfect vector vortex beams. Nature Communications, 14(1), Article 3915. https://doi.org/10.1038/s41467-023-39599-8 bibtex: '@article{Ahmed_Ansari_Li_Zentgraf_Mehmood_Chen_2023, title={Dynamic control of hybrid grafted perfect vector vortex beams}, volume={14}, DOI={10.1038/s41467-023-39599-8}, number={13915}, journal={Nature Communications}, publisher={Springer Science and Business Media LLC}, author={Ahmed, Hammad and Ansari, Muhammad Afnan and Li, Yan and Zentgraf, Thomas and Mehmood, Muhammad Qasim and Chen, Xianzhong}, year={2023} }' chicago: Ahmed, Hammad, Muhammad Afnan Ansari, Yan Li, Thomas Zentgraf, Muhammad Qasim Mehmood, and Xianzhong Chen. “Dynamic Control of Hybrid Grafted Perfect Vector Vortex Beams.” Nature Communications 14, no. 1 (2023). https://doi.org/10.1038/s41467-023-39599-8. ieee: 'H. Ahmed, M. A. Ansari, Y. Li, T. Zentgraf, M. Q. Mehmood, and X. Chen, “Dynamic control of hybrid grafted perfect vector vortex beams,” Nature Communications, vol. 14, no. 1, Art. no. 3915, 2023, doi: 10.1038/s41467-023-39599-8.' mla: Ahmed, Hammad, et al. “Dynamic Control of Hybrid Grafted Perfect Vector Vortex Beams.” Nature Communications, vol. 14, no. 1, 3915, Springer Science and Business Media LLC, 2023, doi:10.1038/s41467-023-39599-8. short: H. Ahmed, M.A. Ansari, Y. Li, T. Zentgraf, M.Q. Mehmood, X. Chen, Nature Communications 14 (2023). date_created: 2023-07-06T06:34:37Z date_updated: 2023-07-06T06:42:10Z ddc: - '530' department: - _id: '15' - _id: '230' - _id: '289' - _id: '623' doi: 10.1038/s41467-023-39599-8 file: - access_level: closed content_type: application/pdf creator: zentgraf date_created: 2023-07-06T06:40:28Z date_updated: 2023-07-06T06:40:28Z file_id: '45869' file_name: NatureCommun_Ahmed_2023.pdf file_size: 4341041 relation: main_file success: 1 file_date_updated: 2023-07-06T06:40:28Z has_accepted_license: '1' intvolume: ' 14' issue: '1' keyword: - General Physics and Astronomy - General Biochemistry - Genetics and Molecular Biology - General Chemistry - Multidisciplinary language: - iso: eng main_file_link: - open_access: '1' oa: '1' publication: Nature Communications publication_identifier: issn: - 2041-1723 publication_status: published publisher: Springer Science and Business Media LLC quality_controlled: '1' status: public title: Dynamic control of hybrid grafted perfect vector vortex beams type: journal_article user_id: '30525' volume: 14 year: '2023' ... --- _id: '45850' abstract: - lang: eng text: Interference between single photons is key for many quantum optics experiments and applications in quantum technologies, such as quantum communication or computation. It is advantageous to operate the systems at telecommunication wavelengths and to integrate the setups for these applications in order to improve stability, compactness and scalability. A new promising material platform for integrated quantum optics is lithium niobate on insulator (LNOI). Here, we realise Hong-Ou-Mandel (HOM) interference between telecom photons from an engineered parametric down-conversion source in an LNOI directional coupler. The coupler has been designed and fabricated in house and provides close to perfect balanced beam splitting. We obtain a raw HOM visibility of (93.5 ± 0.7) %, limited mainly by the source performance and in good agreement with off-chip measurements. This lays the foundation for more sophisticated quantum experiments in LNOI. article_number: '23140' author: - first_name: Silia full_name: Babel, Silia id: '63231' last_name: Babel orcid: https://orcid.org/0000-0002-1568-2580 - first_name: Laura full_name: Bollmers, Laura id: '61375' last_name: Bollmers - first_name: Marcello full_name: Massaro, Marcello id: '59545' last_name: Massaro orcid: 0000-0002-2539-7652 - first_name: Kai Hong full_name: Luo, Kai Hong id: '36389' last_name: Luo orcid: 0000-0003-1008-4976 - first_name: Michael full_name: Stefszky, Michael id: '42777' last_name: Stefszky - first_name: Federico full_name: Pegoraro, Federico id: '88928' last_name: Pegoraro - first_name: Philip full_name: Held, Philip id: '68236' last_name: Held - first_name: Harald full_name: Herrmann, Harald id: '216' last_name: Herrmann - first_name: Christof full_name: Eigner, Christof id: '13244' last_name: Eigner orcid: https://orcid.org/0000-0002-5693-3083 - first_name: Benjamin full_name: Brecht, Benjamin id: '27150' last_name: Brecht orcid: '0000-0003-4140-0556 ' - first_name: Laura full_name: Padberg, Laura id: '40300' last_name: Padberg - first_name: Christine full_name: Silberhorn, Christine id: '26263' last_name: Silberhorn citation: ama: Babel S, Bollmers L, Massaro M, et al. Demonstration of Hong-Ou-Mandel interference in an LNOI directional coupler. Optics Express. 2023;31(14). doi:10.1364/oe.484126 apa: Babel, S., Bollmers, L., Massaro, M., Luo, K. H., Stefszky, M., Pegoraro, F., Held, P., Herrmann, H., Eigner, C., Brecht, B., Padberg, L., & Silberhorn, C. (2023). Demonstration of Hong-Ou-Mandel interference in an LNOI directional coupler. Optics Express, 31(14), Article 23140. https://doi.org/10.1364/oe.484126 bibtex: '@article{Babel_Bollmers_Massaro_Luo_Stefszky_Pegoraro_Held_Herrmann_Eigner_Brecht_et al._2023, title={Demonstration of Hong-Ou-Mandel interference in an LNOI directional coupler}, volume={31}, DOI={10.1364/oe.484126}, number={1423140}, journal={Optics Express}, publisher={Optica Publishing Group}, author={Babel, Silia and Bollmers, Laura and Massaro, Marcello and Luo, Kai Hong and Stefszky, Michael and Pegoraro, Federico and Held, Philip and Herrmann, Harald and Eigner, Christof and Brecht, Benjamin and et al.}, year={2023} }' chicago: Babel, Silia, Laura Bollmers, Marcello Massaro, Kai Hong Luo, Michael Stefszky, Federico Pegoraro, Philip Held, et al. “Demonstration of Hong-Ou-Mandel Interference in an LNOI Directional Coupler.” Optics Express 31, no. 14 (2023). https://doi.org/10.1364/oe.484126. ieee: 'S. Babel et al., “Demonstration of Hong-Ou-Mandel interference in an LNOI directional coupler,” Optics Express, vol. 31, no. 14, Art. no. 23140, 2023, doi: 10.1364/oe.484126.' mla: Babel, Silia, et al. “Demonstration of Hong-Ou-Mandel Interference in an LNOI Directional Coupler.” Optics Express, vol. 31, no. 14, 23140, Optica Publishing Group, 2023, doi:10.1364/oe.484126. short: S. Babel, L. Bollmers, M. Massaro, K.H. Luo, M. Stefszky, F. Pegoraro, P. Held, H. Herrmann, C. Eigner, B. Brecht, L. Padberg, C. Silberhorn, Optics Express 31 (2023). date_created: 2023-07-03T14:08:36Z date_updated: 2023-07-05T07:58:31Z department: - _id: '15' - _id: '230' - _id: '623' - _id: '288' doi: 10.1364/oe.484126 intvolume: ' 31' issue: '14' keyword: - Atomic and Molecular Physics - and Optics language: - iso: eng publication: Optics Express publication_identifier: issn: - 1094-4087 publication_status: published publisher: Optica Publishing Group status: public title: Demonstration of Hong-Ou-Mandel interference in an LNOI directional coupler type: journal_article user_id: '63231' volume: 31 year: '2023' ... --- _id: '46061' abstract: - lang: eng text: DNA origami nanostructures have emerged as functional materials for applications in various areas of science and technology. In particular, the transfer of the DNA origami shape into inorganic materials using... author: - first_name: Bhanu Kiran full_name: Pothineni, Bhanu Kiran last_name: Pothineni - first_name: Guido full_name: Grundmeier, Guido id: '194' last_name: Grundmeier - first_name: Adrian full_name: Keller, Adrian id: '48864' last_name: Keller orcid: 0000-0001-7139-3110 citation: ama: Pothineni BK, Grundmeier G, Keller A. Cation-dependent assembly of hexagonal DNA origami lattices on SiO2 surfaces. Nanoscale. Published online 2023. doi:10.1039/d3nr02926c apa: Pothineni, B. K., Grundmeier, G., & Keller, A. (2023). Cation-dependent assembly of hexagonal DNA origami lattices on SiO2 surfaces. Nanoscale. https://doi.org/10.1039/d3nr02926c bibtex: '@article{Pothineni_Grundmeier_Keller_2023, title={Cation-dependent assembly of hexagonal DNA origami lattices on SiO2 surfaces}, DOI={10.1039/d3nr02926c}, journal={Nanoscale}, publisher={Royal Society of Chemistry (RSC)}, author={Pothineni, Bhanu Kiran and Grundmeier, Guido and Keller, Adrian}, year={2023} }' chicago: Pothineni, Bhanu Kiran, Guido Grundmeier, and Adrian Keller. “Cation-Dependent Assembly of Hexagonal DNA Origami Lattices on SiO2 Surfaces.” Nanoscale, 2023. https://doi.org/10.1039/d3nr02926c. ieee: 'B. K. Pothineni, G. Grundmeier, and A. Keller, “Cation-dependent assembly of hexagonal DNA origami lattices on SiO2 surfaces,” Nanoscale, 2023, doi: 10.1039/d3nr02926c.' mla: Pothineni, Bhanu Kiran, et al. “Cation-Dependent Assembly of Hexagonal DNA Origami Lattices on SiO2 Surfaces.” Nanoscale, Royal Society of Chemistry (RSC), 2023, doi:10.1039/d3nr02926c. short: B.K. Pothineni, G. Grundmeier, A. Keller, Nanoscale (2023). date_created: 2023-07-14T07:18:24Z date_updated: 2023-07-14T07:18:57Z department: - _id: '302' doi: 10.1039/d3nr02926c keyword: - General Materials Science language: - iso: eng publication: Nanoscale publication_identifier: issn: - 2040-3364 - 2040-3372 publication_status: published publisher: Royal Society of Chemistry (RSC) status: public title: Cation-dependent assembly of hexagonal DNA origami lattices on SiO2 surfaces type: journal_article user_id: '48864' year: '2023' ... --- _id: '46133' article_number: '165426' author: - first_name: Frederik full_name: Bopp, Frederik last_name: Bopp - first_name: Johannes full_name: Schall, Johannes last_name: Schall - first_name: Nikolai full_name: Bart, Nikolai last_name: Bart - first_name: Florian full_name: Vögl, Florian last_name: Vögl - first_name: Charlotte full_name: Cullip, Charlotte last_name: Cullip - first_name: Friedrich full_name: Sbresny, Friedrich last_name: Sbresny - first_name: Katarina full_name: Boos, Katarina last_name: Boos - first_name: Christopher full_name: Thalacker, Christopher last_name: Thalacker - first_name: Michelle full_name: Lienhart, Michelle last_name: Lienhart - first_name: Sven full_name: Rodt, Sven last_name: Rodt - first_name: Dirk full_name: Reuter, Dirk id: '37763' last_name: Reuter - first_name: Arne full_name: Ludwig, Arne last_name: Ludwig - first_name: Andreas D. full_name: Wieck, Andreas D. last_name: Wieck - first_name: Stephan full_name: Reitzenstein, Stephan last_name: Reitzenstein - first_name: Kai full_name: Müller, Kai last_name: Müller - first_name: Jonathan J. full_name: Finley, Jonathan J. last_name: Finley citation: ama: Bopp F, Schall J, Bart N, et al. Coherent driving of direct and indirect excitons in a quantum dot molecule. Physical Review B. 2023;107(16). doi:10.1103/physrevb.107.165426 apa: Bopp, F., Schall, J., Bart, N., Vögl, F., Cullip, C., Sbresny, F., Boos, K., Thalacker, C., Lienhart, M., Rodt, S., Reuter, D., Ludwig, A., Wieck, A. D., Reitzenstein, S., Müller, K., & Finley, J. J. (2023). Coherent driving of direct and indirect excitons in a quantum dot molecule. Physical Review B, 107(16), Article 165426. https://doi.org/10.1103/physrevb.107.165426 bibtex: '@article{Bopp_Schall_Bart_Vögl_Cullip_Sbresny_Boos_Thalacker_Lienhart_Rodt_et al._2023, title={Coherent driving of direct and indirect excitons in a quantum dot molecule}, volume={107}, DOI={10.1103/physrevb.107.165426}, number={16165426}, journal={Physical Review B}, publisher={American Physical Society (APS)}, author={Bopp, Frederik and Schall, Johannes and Bart, Nikolai and Vögl, Florian and Cullip, Charlotte and Sbresny, Friedrich and Boos, Katarina and Thalacker, Christopher and Lienhart, Michelle and Rodt, Sven and et al.}, year={2023} }' chicago: Bopp, Frederik, Johannes Schall, Nikolai Bart, Florian Vögl, Charlotte Cullip, Friedrich Sbresny, Katarina Boos, et al. “Coherent Driving of Direct and Indirect Excitons in a Quantum Dot Molecule.” Physical Review B 107, no. 16 (2023). https://doi.org/10.1103/physrevb.107.165426. ieee: 'F. Bopp et al., “Coherent driving of direct and indirect excitons in a quantum dot molecule,” Physical Review B, vol. 107, no. 16, Art. no. 165426, 2023, doi: 10.1103/physrevb.107.165426.' mla: Bopp, Frederik, et al. “Coherent Driving of Direct and Indirect Excitons in a Quantum Dot Molecule.” Physical Review B, vol. 107, no. 16, 165426, American Physical Society (APS), 2023, doi:10.1103/physrevb.107.165426. short: F. Bopp, J. Schall, N. Bart, F. Vögl, C. Cullip, F. Sbresny, K. Boos, C. Thalacker, M. Lienhart, S. Rodt, D. Reuter, A. Ludwig, A.D. Wieck, S. Reitzenstein, K. Müller, J.J. Finley, Physical Review B 107 (2023). date_created: 2023-07-25T08:20:20Z date_updated: 2023-07-25T08:21:13Z department: - _id: '15' - _id: '230' doi: 10.1103/physrevb.107.165426 intvolume: ' 107' issue: '16' language: - iso: eng publication: Physical Review B publication_identifier: issn: - 2469-9950 - 2469-9969 publication_status: published publisher: American Physical Society (APS) status: public title: Coherent driving of direct and indirect excitons in a quantum dot molecule type: journal_article user_id: '42514' volume: 107 year: '2023' ... --- _id: '46132' author: - first_name: Mario full_name: Littmann, Mario last_name: Littmann - first_name: Dirk full_name: Reuter, Dirk id: '37763' last_name: Reuter - first_name: Donat Josef full_name: As, Donat Josef id: '14' last_name: As orcid: 0000-0003-1121-3565 citation: ama: Littmann M, Reuter D, As DJ. Remote Epitaxy of Cubic Gallium Nitride on Graphene‐Covered 3C‐SiC Substrates by Plasma‐Assisted Molecular Beam Epitaxy. physica status solidi (b). 2023;260(7). doi:10.1002/pssb.202300034 apa: Littmann, M., Reuter, D., & As, D. J. (2023). Remote Epitaxy of Cubic Gallium Nitride on Graphene‐Covered 3C‐SiC Substrates by Plasma‐Assisted Molecular Beam Epitaxy. Physica Status Solidi (b), 260(7). https://doi.org/10.1002/pssb.202300034 bibtex: '@article{Littmann_Reuter_As_2023, title={Remote Epitaxy of Cubic Gallium Nitride on Graphene‐Covered 3C‐SiC Substrates by Plasma‐Assisted Molecular Beam Epitaxy}, volume={260}, DOI={10.1002/pssb.202300034}, number={7}, journal={physica status solidi (b)}, publisher={Wiley}, author={Littmann, Mario and Reuter, Dirk and As, Donat Josef}, year={2023} }' chicago: Littmann, Mario, Dirk Reuter, and Donat Josef As. “Remote Epitaxy of Cubic Gallium Nitride on Graphene‐Covered 3C‐SiC Substrates by Plasma‐Assisted Molecular Beam Epitaxy.” Physica Status Solidi (b) 260, no. 7 (2023). https://doi.org/10.1002/pssb.202300034. ieee: 'M. Littmann, D. Reuter, and D. J. As, “Remote Epitaxy of Cubic Gallium Nitride on Graphene‐Covered 3C‐SiC Substrates by Plasma‐Assisted Molecular Beam Epitaxy,” physica status solidi (b), vol. 260, no. 7, 2023, doi: 10.1002/pssb.202300034.' mla: Littmann, Mario, et al. “Remote Epitaxy of Cubic Gallium Nitride on Graphene‐Covered 3C‐SiC Substrates by Plasma‐Assisted Molecular Beam Epitaxy.” Physica Status Solidi (b), vol. 260, no. 7, Wiley, 2023, doi:10.1002/pssb.202300034. short: M. Littmann, D. Reuter, D.J. As, Physica Status Solidi (b) 260 (2023). date_created: 2023-07-25T08:06:13Z date_updated: 2023-07-25T08:07:20Z department: - _id: '15' - _id: '230' doi: 10.1002/pssb.202300034 intvolume: ' 260' issue: '7' keyword: - Condensed Matter Physics - Electronic - Optical and Magnetic Materials language: - iso: eng publication: physica status solidi (b) publication_identifier: issn: - 0370-1972 - 1521-3951 publication_status: published publisher: Wiley status: public title: Remote Epitaxy of Cubic Gallium Nitride on Graphene‐Covered 3C‐SiC Substrates by Plasma‐Assisted Molecular Beam Epitaxy type: journal_article user_id: '42514' volume: 260 year: '2023' ... --- _id: '46138' abstract: - lang: eng text: This work reports a fully guided setup for single-mode squeezing on integrated titanium-indiffused periodically poled nonlinear resonators. A continuous-wave laser beam is delivered and the squeezed field is collected by single-mode fibers; up to −3.17(9) dB of useful squeezing is available in fibers. To showcase the usefulness of such a fiber-coupled device, we applied the generated squeezed light in a fiber-based phase sensing experiment, showing a quantum enhancement in the signal-to-noise ratio of 0.35 dB. Moreover, our investigation of the effect of photorefraction on the cavity resonance condition suggests that it causes system instabilities at high powers. article_number: '2999' article_type: original author: - first_name: Renato full_name: Domeneguetti, Renato last_name: Domeneguetti - first_name: Michael full_name: Stefszky, Michael id: '42777' last_name: Stefszky - first_name: Harald full_name: Herrmann, Harald id: '216' last_name: Herrmann - first_name: Christine full_name: Silberhorn, Christine id: '26263' last_name: Silberhorn - first_name: Ulrik L. full_name: Andersen, Ulrik L. last_name: Andersen - first_name: Jonas S. full_name: Neergaard-Nielsen, Jonas S. last_name: Neergaard-Nielsen - first_name: Tobias full_name: Gehring, Tobias last_name: Gehring citation: ama: Domeneguetti R, Stefszky M, Herrmann H, et al. Fully guided and phase locked Ti:PPLN waveguide squeezing for applications in quantum sensing. Optics Letters. 2023;48(11). doi:10.1364/ol.486654 apa: Domeneguetti, R., Stefszky, M., Herrmann, H., Silberhorn, C., Andersen, U. L., Neergaard-Nielsen, J. S., & Gehring, T. (2023). Fully guided and phase locked Ti:PPLN waveguide squeezing for applications in quantum sensing. Optics Letters, 48(11), Article 2999. https://doi.org/10.1364/ol.486654 bibtex: '@article{Domeneguetti_Stefszky_Herrmann_Silberhorn_Andersen_Neergaard-Nielsen_Gehring_2023, title={Fully guided and phase locked Ti:PPLN waveguide squeezing for applications in quantum sensing}, volume={48}, DOI={10.1364/ol.486654}, number={112999}, journal={Optics Letters}, publisher={Optica Publishing Group}, author={Domeneguetti, Renato and Stefszky, Michael and Herrmann, Harald and Silberhorn, Christine and Andersen, Ulrik L. and Neergaard-Nielsen, Jonas S. and Gehring, Tobias}, year={2023} }' chicago: Domeneguetti, Renato, Michael Stefszky, Harald Herrmann, Christine Silberhorn, Ulrik L. Andersen, Jonas S. Neergaard-Nielsen, and Tobias Gehring. “Fully Guided and Phase Locked Ti:PPLN Waveguide Squeezing for Applications in Quantum Sensing.” Optics Letters 48, no. 11 (2023). https://doi.org/10.1364/ol.486654. ieee: 'R. Domeneguetti et al., “Fully guided and phase locked Ti:PPLN waveguide squeezing for applications in quantum sensing,” Optics Letters, vol. 48, no. 11, Art. no. 2999, 2023, doi: 10.1364/ol.486654.' mla: Domeneguetti, Renato, et al. “Fully Guided and Phase Locked Ti:PPLN Waveguide Squeezing for Applications in Quantum Sensing.” Optics Letters, vol. 48, no. 11, 2999, Optica Publishing Group, 2023, doi:10.1364/ol.486654. short: R. Domeneguetti, M. Stefszky, H. Herrmann, C. Silberhorn, U.L. Andersen, J.S. Neergaard-Nielsen, T. Gehring, Optics Letters 48 (2023). date_created: 2023-07-25T10:35:24Z date_updated: 2023-07-25T10:58:05Z department: - _id: '230' - _id: '623' - _id: '288' doi: 10.1364/ol.486654 intvolume: ' 48' issue: '11' keyword: - Atomic and Molecular Physics - and Optics language: - iso: eng project: - _id: '218' name: 'UNIQORN: UNIQORN - Affordable Quantum Communication for Everyone - EU Quantum Flagship Project' publication: Optics Letters publication_identifier: issn: - 0146-9592 - 1539-4794 publication_status: published publisher: Optica Publishing Group quality_controlled: '1' status: public title: Fully guided and phase locked Ti:PPLN waveguide squeezing for applications in quantum sensing type: journal_article user_id: '216' volume: 48 year: '2023' ... --- _id: '46214' abstract: - lang: eng text: 'Ernährungsarmut wird als Problem in Deutschland weitgehend vernachlässigt. Von materieller Ernährungsarmut betroffen sind Menschen, denen es aufgrund fehlender finanzieller Mittel nicht möglich ist, sich gesundheitsfördernd zu ernähren. Etwa 3,5 % der Bevölkerung (rund drei Millionen Menschen) sind durch materielle Ernährungsarmut gefährdet. Damit einher geht oft auch soziale Ernährungsarmut, die Menschen von der sozialen Teilhabe ausschließt, die z. B. durch gemeinsames Essen ermöglicht wird. Essen ist nicht nur von Bedeutung für die körperliche Gesundheit, sondern auch zentral für die psychische Gesundheit und das Wohlbefinden sowie für die soziale Zugehörigkeit, was sich wiederum auf die körperliche Gesundheit auswirkt. Die sozialen Funktionen des Essens werden vielfach übersehen – und bei der Berechnung des Regelbedarfs ausgeblendet. Gerade die Corona-Pandemie hat gezeigt, wie fehlende soziale Kontakte und sozialer Ausschluss sich auf die physische, psychische und soziale Gesundheit auswirken können. Aus Sicht des WBAE (Wissenschaftliche Beirat für Agrarpolitik, Ernährung und gesundheitlichen Verbraucherschutz) ist deshalb der integrative Blick auf die materielle und soziale Ernährungsarmut zentral, da sie sich gegenseitig verstärken können. Diese Stellungnahme befasst sich mit der Frage, wie sich die Corona-Pandemie auf von Ernährungsarmut gefährdete Menschen ausgewirkt hat und was daraus gelernt werden kann. Ein wichtiger Aspekt ist der zeitweilige Wegfall von Essensangeboten in Kitas, Schulen, Tafeln und anderen karitativen Essensangeboten, die ein Sicherheitsnetz für Menschen in Ernährungsarmut darstellen. Die Stellungnahme zieht auf dieser Basis auch Schluss-folgerungen zur Ernährungsarmut außerhalb von Pandemiebedingungen. Im Hinblick auf die Notwendigkeit der Vermeidung von Fehlernährung in Haushalten, die von Ernährungsarmut bedroht sind, kommt der WBAE zu dem Schluss, dass diese Risikogruppe während der Pandemie nicht ausreichend im Fokus der Maßnahmen zur Abmilderung der Pandemiefolgen stand. Dies zeigt sich schon daran, dass kaum Daten erhoben wurden. Deutschland verfügt über kein klares Indikatoren- und Zielsystem und kein Monitoring zur Ernährungsarmut. Die wenigen vorhandenen Daten weisen auf problematische Entwicklungen hin. Insgesamt wurden durch den Bund sehr umfangreiche Mittel zur Bewältigung der wirtschaftlichen und sozialen Folgen der Corona-Pandemie und zur Einkommenssicherung während der Pandemie eingesetzt. Dies ist unter dem Blickwinkel „Ernährungsarmut” positiv zu bewerten. Es ist davon auszugehen, dass diese Maßnahmen verhindert haben, dass noch mehr Haushalte von Ernährungsarmut betroffen waren. Insgesamt zeigt die Analyse jedoch, dass es kaum gezielte Maßnahmen gab, um den Ausfall von Kita- und Schulernährung durch alternative Formen der Bereitstellung von Lebensmitteln oder einer warmen Mahlzeit aufzufangen. Maßnahmen auf Bundesebene fehlten, um Länder, Kommunen und nicht-staatliche Organisationen dabei zu unterstützen. Auswertungen der Pandemiemaßnahmen vergleichbarer Länder zeigen, dass dort schnelle und flexible Maßnahmen zur Bereitstellung von Lebensmitteln eine wichtige Rolle gespielt haben, um armutsgefährdete Haushalte zu unterstützen. In Deutschland wurden vorwiegend finanzielle Transfers genutzt, z. T. zeitlich verzögert und wenig zielgruppenspezifisch. Vor diesem Hintergrund hat der WBAE mögliche Maßnahmen gegen Ernährungsarmut – in Krisen, aber auch generell – untersucht: (1) finanzielle Transfers (einmalig oder fortlaufend), (2) Lebensmittelgutscheine („Voucher“), (3) Lebensmittelpakete und (4) warme Mahlzeiten, wobei die letzten beiden Optionen jeweils zur Abholung oder zur Auslieferung angeboten werden können. Die untersuchten internationalen Beispiele zeigen Möglichkeiten, wie z. T. mit schnellen und teilweise innovativen Ansätzen auf Lockdown-Maßnahmen reagiert wurde. Im Grundsatz spricht aus Sicht des WBAE aber vieles für das deutsche System zur Bekämpfung der Ernährungsarmut, das im Kern auf einem Bürgergeld beruht. Ein solches Bürgergeld muss jedoch ausreichend sein, um materielle und soziale Ernährungsarmut zu vermeiden. Die aktuellen, im Bürgergeld für Essen und Getränke zur Verfügung stehenden Beträge entsprechen allerdings nicht diesem Anspruch. Bei der Einführung des Bürgergelds im Jahr 2023 wurde zwar zeitnah auf die hohe Inflation reagiert. Die Berechnungsmethodik für die Bedarfsermittlung wurde aber nicht angepasst, sodass der Regelsatz nach wie vor nicht für eine gesundheitsfördernde Ernährung ausreicht. Die soziale Funktion von Ernährung wird bei der Berechnung des Regelsatzes nicht berücksichtigt. Um bei akutem Handlungsbedarf, wie z. B. auch bei der derzeitigen Inflation, schneller reagieren zu können, sollten außerdem Systeme zur Auszahlung sozial differenzierter „Krisentransfers” an vulnerable Haushalte mit geringem Verwaltungsaufwand ermöglicht werden. Darüber hinaus sollte für den zentralen Bereich der Kinder-ernährung der Schutz einer adäquaten Grundsicherung durch einen Systemwechsel zu einer integrativen, beitragsfreien und somit nicht-diskriminierenden Kita- und Schulverpflegung ergänzt werden, die zudem den DGE-Qualitätsstandards entspricht. Schließlich sollte der Staat privates, ehrenamtliches Engagement ergänzend fördern, z. B. durch Infrastrukturunterstützung bei karitativen Essensangeboten. Eine Herausforderung der Gestaltung von karitativen Lebensmittelangeboten besteht darin, dass sie oft als stigmatisierend und beschämend wahrgenommen werden und der Nachweis eines Anspruches teils schwierig ist. Zudem bestehen oft nur wenige Wahlmöglichkeiten, sodass individuelle Präferenzen oder Unverträglichkeiten nur sehr eingeschränkt berücksichtigt werden können. Im Hinblick auf die soziale Dimension der Ernährung kommt hinzu, dass wichtige soziale Funktionen des Essens, wie das gemeinsame Essen, also Kommensalität, nicht oder nur sehr eingeschränkt ermöglicht wird. Auch bleiben diejenigen, die versorgt werden, dabei meist unter sich. Vor dem Hintergrund dieser Gesamteinschätzung empfiehlt der WBAE die folgenden, in Abbildung Z 1 dargestellten Maßnahmen (siehe Beitrag). Zusammenfassend betont der WBAE die in Deutschland weiterhin unterschätzten Risiken materieller und sozialer Ernährungsarmut. Im Rahmen der geplanten Nationalen Ernährungsstrategie der Bundesregierung sollte dem Thema Ernährungsarmut aus Sicht des WBAE eine herausgehobene Bedeutung zugemessen werden.' author: - first_name: Regina full_name: Birner, Regina last_name: Birner - first_name: Jakob full_name: Linseisen, Jakob last_name: Linseisen - first_name: Ulrike full_name: Arens-Azevedo, Ulrike last_name: Arens-Azevedo - first_name: Alfons full_name: Balmann, Alfons last_name: Balmann - first_name: Hans Konrad full_name: Biesalski, Hans Konrad last_name: Biesalski - first_name: Anja full_name: Bosy-Westphal, Anja last_name: Bosy-Westphal - first_name: Anette full_name: Buyken, Anette id: '65985' last_name: Buyken - first_name: Thomas full_name: Döring, Thomas last_name: Döring - first_name: Peter full_name: Feindt, Peter last_name: Feindt - first_name: Kay-Uwe full_name: Götz, Kay-Uwe last_name: Götz - first_name: Sarah full_name: Iweala, Sarah last_name: Iweala - first_name: José full_name: Martínez, José last_name: Martínez - first_name: Hiltrud full_name: Nieberg, Hiltrud last_name: Nieberg - first_name: Ute full_name: Nöthlings, Ute last_name: Nöthlings - first_name: Monika full_name: Pischetsrieder, Monika last_name: Pischetsrieder - first_name: Britta full_name: Renner, Britta last_name: Renner - first_name: 'Achim ' full_name: 'Spiller, Achim ' last_name: Spiller - first_name: Lieske full_name: Voget-Kleschin, Lieske last_name: Voget-Kleschin - first_name: Peter full_name: Weingarten, Peter last_name: Weingarten - first_name: Justus full_name: Wesseler, Justus last_name: Wesseler - first_name: Christine full_name: Wieck, Christine last_name: Wieck citation: ama: Birner R, Linseisen J, Arens-Azevedo U, et al. Ernährungsarmut unter Pandemiebedingungen. Berichte über Landwirtschaft. Published online 2023. doi:10.12767/BUEL.VI236.468 apa: Birner, R., Linseisen, J., Arens-Azevedo, U., Balmann, A., Biesalski, H. K., Bosy-Westphal, A., Buyken, A., Döring, T., Feindt, P., Götz, K.-U., Iweala, S., Martínez, J., Nieberg, H., Nöthlings, U., Pischetsrieder, M., Renner, B., Spiller, A., Voget-Kleschin, L., Weingarten, P., … Wieck, C. (2023). Ernährungsarmut unter Pandemiebedingungen. Berichte Über Landwirtschaft. https://doi.org/10.12767/BUEL.VI236.468 bibtex: '@article{Birner_Linseisen_Arens-Azevedo_Balmann_Biesalski_Bosy-Westphal_Buyken_Döring_Feindt_Götz_et al._2023, title={Ernährungsarmut unter Pandemiebedingungen}, DOI={10.12767/BUEL.VI236.468}, journal={Berichte über Landwirtschaft}, author={Birner, Regina and Linseisen, Jakob and Arens-Azevedo, Ulrike and Balmann, Alfons and Biesalski, Hans Konrad and Bosy-Westphal, Anja and Buyken, Anette and Döring, Thomas and Feindt, Peter and Götz, Kay-Uwe and et al.}, year={2023} }' chicago: Birner, Regina, Jakob Linseisen, Ulrike Arens-Azevedo, Alfons Balmann, Hans Konrad Biesalski, Anja Bosy-Westphal, Anette Buyken, et al. “Ernährungsarmut Unter Pandemiebedingungen.” Berichte Über Landwirtschaft, 2023. https://doi.org/10.12767/BUEL.VI236.468. ieee: 'R. Birner et al., “Ernährungsarmut unter Pandemiebedingungen,” Berichte über Landwirtschaft, 2023, doi: 10.12767/BUEL.VI236.468.' mla: Birner, Regina, et al. “Ernährungsarmut Unter Pandemiebedingungen.” Berichte Über Landwirtschaft, 2023, doi:10.12767/BUEL.VI236.468. short: R. Birner, J. Linseisen, U. Arens-Azevedo, A. Balmann, H.K. Biesalski, A. Bosy-Westphal, A. Buyken, T. Döring, P. Feindt, K.-U. Götz, S. Iweala, J. Martínez, H. Nieberg, U. Nöthlings, M. Pischetsrieder, B. Renner, A. Spiller, L. Voget-Kleschin, P. Weingarten, J. Wesseler, C. Wieck, Berichte Über Landwirtschaft (2023). date_created: 2023-07-31T07:30:46Z date_updated: 2023-07-31T07:43:19Z department: - _id: '22' doi: 10.12767/BUEL.VI236.468 language: - iso: eng publication: Berichte über Landwirtschaft status: public title: Ernährungsarmut unter Pandemiebedingungen type: journal_article user_id: '92491' year: '2023' ... --- _id: '46217' author: - first_name: Britta full_name: Renner, Britta last_name: Renner - first_name: Anette full_name: Buyken, Anette id: '65985' last_name: Buyken - first_name: Kurt full_name: Gedrich, Kurt last_name: Gedrich - first_name: Stefan full_name: Lorkowski, Stefan last_name: Lorkowski - first_name: Bernhard full_name: Watzl, Bernhard last_name: Watzl - first_name: Jakob full_name: Linseisen, Jakob last_name: Linseisen - first_name: Hannelore full_name: Daniel, Hannelore last_name: Daniel - first_name: Johanna full_name: Conrad, Johanna last_name: Conrad - first_name: Paola G. full_name: Ferrario, Paola G. last_name: Ferrario - first_name: Christina full_name: Holzapfel, Christina last_name: Holzapfel - first_name: Michael full_name: Leitzmann, Michael last_name: Leitzmann - first_name: Margrit full_name: Richter, Margrit last_name: Richter - first_name: Marie-Christine full_name: Simon, Marie-Christine last_name: Simon - first_name: Christian full_name: Sina, Christian last_name: Sina - first_name: Jan full_name: Wirsam, Jan last_name: Wirsam citation: ama: 'Renner B, Buyken A, Gedrich K, et al. Perspective: A Conceptual Framework for Adaptive Personalized Nutrition Advice Systems. Advances in Nutrition. Published online 2023. doi:10.1016/j.advnut.2023.06.009' apa: 'Renner, B., Buyken, A., Gedrich, K., Lorkowski, S., Watzl, B., Linseisen, J., Daniel, H., Conrad, J., Ferrario, P. G., Holzapfel, C., Leitzmann, M., Richter, M., Simon, M.-C., Sina, C., & Wirsam, J. (2023). Perspective: A Conceptual Framework for Adaptive Personalized Nutrition Advice Systems. Advances in Nutrition. https://doi.org/10.1016/j.advnut.2023.06.009' bibtex: '@article{Renner_Buyken_Gedrich_Lorkowski_Watzl_Linseisen_Daniel_Conrad_Ferrario_Holzapfel_et al._2023, title={Perspective: A Conceptual Framework for Adaptive Personalized Nutrition Advice Systems}, DOI={10.1016/j.advnut.2023.06.009}, journal={Advances in Nutrition}, publisher={Elsevier BV}, author={Renner, Britta and Buyken, Anette and Gedrich, Kurt and Lorkowski, Stefan and Watzl, Bernhard and Linseisen, Jakob and Daniel, Hannelore and Conrad, Johanna and Ferrario, Paola G. and Holzapfel, Christina and et al.}, year={2023} }' chicago: 'Renner, Britta, Anette Buyken, Kurt Gedrich, Stefan Lorkowski, Bernhard Watzl, Jakob Linseisen, Hannelore Daniel, et al. “Perspective: A Conceptual Framework for Adaptive Personalized Nutrition Advice Systems.” Advances in Nutrition, 2023. https://doi.org/10.1016/j.advnut.2023.06.009.' ieee: 'B. Renner et al., “Perspective: A Conceptual Framework for Adaptive Personalized Nutrition Advice Systems,” Advances in Nutrition, 2023, doi: 10.1016/j.advnut.2023.06.009.' mla: 'Renner, Britta, et al. “Perspective: A Conceptual Framework for Adaptive Personalized Nutrition Advice Systems.” Advances in Nutrition, Elsevier BV, 2023, doi:10.1016/j.advnut.2023.06.009.' short: B. Renner, A. Buyken, K. Gedrich, S. Lorkowski, B. Watzl, J. Linseisen, H. Daniel, J. Conrad, P.G. Ferrario, C. Holzapfel, M. Leitzmann, M. Richter, M.-C. Simon, C. Sina, J. Wirsam, Advances in Nutrition (2023). date_created: 2023-07-31T07:50:22Z date_updated: 2023-07-31T07:51:03Z department: - _id: '22' doi: 10.1016/j.advnut.2023.06.009 keyword: - Nutrition and Dietetics - Medicine (miscellaneous) - Food Science language: - iso: eng publication: Advances in Nutrition publication_identifier: issn: - 2161-8313 publication_status: published publisher: Elsevier BV status: public title: 'Perspective: A Conceptual Framework for Adaptive Personalized Nutrition Advice Systems' type: journal_article user_id: '92491' year: '2023' ... --- _id: '46278' abstract: - lang: eng text: 'Site-controlled Ga droplets on AlGaAs substrates are fabricated using area-selective deposition of Ga through apertures in a mask during molecular beam epitaxy (MBE). The Ga droplets can be crystallized into GaAs quantum dots using a crystallization step under As flux. In order to model the complex process, including the masked deposition of the droplets and a reduction of their number during a thermal annealing step, a multiscale kinetic Monte Carlo (mkMC) simulation of self-assembled Ga droplet formation on AlGaAs is expanded for area-selective deposition. The simulation has only two free model parameters: the activation energy for surface diffusion and the activation energy for thermal escape of adatoms from a droplet. Simulated droplet numbers within the opening of the aperture agree quantitatively with the experimental results down to the perfect site-control, with one droplet per aperture. However, the model parameters are different compared to those of the self-assembled droplet growth. We attribute this to the presence of the mask in close proximity to the surface, which modifies the local process temperature and the As background. This approach also explains the dependence of the model parameters on the size of the aperture.' article_number: '466' author: - first_name: Stefan full_name: Feddersen, Stefan last_name: Feddersen - first_name: Viktoryia full_name: Zolatanosha, Viktoryia last_name: Zolatanosha - first_name: Ahmed full_name: Alshaikh, Ahmed last_name: Alshaikh - first_name: Dirk full_name: Reuter, Dirk id: '37763' last_name: Reuter - first_name: Christian full_name: Heyn, Christian last_name: Heyn citation: ama: Feddersen S, Zolatanosha V, Alshaikh A, Reuter D, Heyn C. Modeling of Masked Droplet Deposition for Site-Controlled Ga Droplets. Nanomaterials. 2023;13(3). doi:10.3390/nano13030466 apa: Feddersen, S., Zolatanosha, V., Alshaikh, A., Reuter, D., & Heyn, C. (2023). Modeling of Masked Droplet Deposition for Site-Controlled Ga Droplets. Nanomaterials, 13(3), Article 466. https://doi.org/10.3390/nano13030466 bibtex: '@article{Feddersen_Zolatanosha_Alshaikh_Reuter_Heyn_2023, title={Modeling of Masked Droplet Deposition for Site-Controlled Ga Droplets}, volume={13}, DOI={10.3390/nano13030466}, number={3466}, journal={Nanomaterials}, publisher={MDPI AG}, author={Feddersen, Stefan and Zolatanosha, Viktoryia and Alshaikh, Ahmed and Reuter, Dirk and Heyn, Christian}, year={2023} }' chicago: Feddersen, Stefan, Viktoryia Zolatanosha, Ahmed Alshaikh, Dirk Reuter, and Christian Heyn. “Modeling of Masked Droplet Deposition for Site-Controlled Ga Droplets.” Nanomaterials 13, no. 3 (2023). https://doi.org/10.3390/nano13030466. ieee: 'S. Feddersen, V. Zolatanosha, A. Alshaikh, D. Reuter, and C. Heyn, “Modeling of Masked Droplet Deposition for Site-Controlled Ga Droplets,” Nanomaterials, vol. 13, no. 3, Art. no. 466, 2023, doi: 10.3390/nano13030466.' mla: Feddersen, Stefan, et al. “Modeling of Masked Droplet Deposition for Site-Controlled Ga Droplets.” Nanomaterials, vol. 13, no. 3, 466, MDPI AG, 2023, doi:10.3390/nano13030466. short: S. Feddersen, V. Zolatanosha, A. Alshaikh, D. Reuter, C. Heyn, Nanomaterials 13 (2023). date_created: 2023-08-03T11:13:28Z date_updated: 2023-08-03T11:14:10Z department: - _id: '15' - _id: '230' doi: 10.3390/nano13030466 intvolume: ' 13' issue: '3' keyword: - General Materials Science - General Chemical Engineering language: - iso: eng publication: Nanomaterials publication_identifier: issn: - 2079-4991 publication_status: published publisher: MDPI AG status: public title: Modeling of Masked Droplet Deposition for Site-Controlled Ga Droplets type: journal_article user_id: '42514' volume: 13 year: '2023' ... --- _id: '46277' author: - first_name: Benedikt full_name: Sieland, Benedikt last_name: Sieland - first_name: Marcel full_name: Stahn, Marcel last_name: Stahn - first_name: Roland full_name: Schoch, Roland last_name: Schoch - first_name: Constantin full_name: Daniliuc, Constantin last_name: Daniliuc - first_name: Sebastian full_name: Spicher, Sebastian last_name: Spicher - first_name: Stefan full_name: Grimme, Stefan last_name: Grimme - first_name: Andreas full_name: Hansen, Andreas last_name: Hansen - first_name: Jan full_name: Paradies, Jan id: '53339' last_name: Paradies orcid: 0000-0002-3698-668X citation: ama: Sieland B, Stahn M, Schoch R, et al. Dispersion Energy‐Stabilized Boron and Phosphorus Lewis Pairs. Angewandte Chemie International Edition. Published online 2023. doi:10.1002/anie.202308752 apa: Sieland, B., Stahn, M., Schoch, R., Daniliuc, C., Spicher, S., Grimme, S., Hansen, A., & Paradies, J. (2023). Dispersion Energy‐Stabilized Boron and Phosphorus Lewis Pairs. Angewandte Chemie International Edition. https://doi.org/10.1002/anie.202308752 bibtex: '@article{Sieland_Stahn_Schoch_Daniliuc_Spicher_Grimme_Hansen_Paradies_2023, title={Dispersion Energy‐Stabilized Boron and Phosphorus Lewis Pairs}, DOI={10.1002/anie.202308752}, journal={Angewandte Chemie International Edition}, publisher={Wiley}, author={Sieland, Benedikt and Stahn, Marcel and Schoch, Roland and Daniliuc, Constantin and Spicher, Sebastian and Grimme, Stefan and Hansen, Andreas and Paradies, Jan}, year={2023} }' chicago: Sieland, Benedikt, Marcel Stahn, Roland Schoch, Constantin Daniliuc, Sebastian Spicher, Stefan Grimme, Andreas Hansen, and Jan Paradies. “Dispersion Energy‐Stabilized Boron and Phosphorus Lewis Pairs.” Angewandte Chemie International Edition, 2023. https://doi.org/10.1002/anie.202308752. ieee: 'B. Sieland et al., “Dispersion Energy‐Stabilized Boron and Phosphorus Lewis Pairs,” Angewandte Chemie International Edition, 2023, doi: 10.1002/anie.202308752.' mla: Sieland, Benedikt, et al. “Dispersion Energy‐Stabilized Boron and Phosphorus Lewis Pairs.” Angewandte Chemie International Edition, Wiley, 2023, doi:10.1002/anie.202308752. short: B. Sieland, M. Stahn, R. Schoch, C. Daniliuc, S. Spicher, S. Grimme, A. Hansen, J. Paradies, Angewandte Chemie International Edition (2023). date_created: 2023-08-03T09:00:33Z date_updated: 2023-08-03T09:01:41Z department: - _id: '2' - _id: '389' doi: 10.1002/anie.202308752 keyword: - General Chemistry - Catalysis language: - iso: eng publication: Angewandte Chemie International Edition publication_identifier: issn: - 1433-7851 - 1521-3773 publication_status: published publisher: Wiley status: public title: Dispersion Energy‐Stabilized Boron and Phosphorus Lewis Pairs type: journal_article user_id: '53339' year: '2023' ... --- _id: '40982' abstract: - lang: eng text: Effective photoinduced charge transfer makes molecular bimetallic assemblies attractive for applications as active light induced proton reduction systems. For a more sustainable future, development of competitive base metal dyads is mandatory. However, the electron transfer mechanisms from the photosensitizer to the proton reduction catalyst in base metal dyads remain so far unexplored. We study a Fe-Co dyad that exhibits photocatalytic H2 production activity using femtosecond X-ray emission spectroscopy, complemented by ultrafast optical spectroscopy and theoretical time-dependent DFT calculations, to understand the electronic and structural dynamics after photoexcitation and during the subsequent charge transfer process from the FeII photosensitizer to the cobaloxime catalyst. Using this novel approach, the simultaneous measurement of the transient Kalpha X-ray emission at the iron and cobalt K-edges in a two-colour experiment is enabled making it possible to correlate the excited state dynamics to the electron transfer processes. The methodology, therefore, provides a clear and direct spectroscopic evidence of the Fe->Co electron transfer responsible for the proton reduction activity. author: - first_name: Michał full_name: Nowakowski, Michał id: '78878' last_name: Nowakowski orcid: 0000-0002-3734-7011 - first_name: Marina full_name: Huber-Gedert, Marina id: '38352' last_name: Huber-Gedert - first_name: Hossam full_name: Elgabarty, Hossam id: '60250' last_name: Elgabarty orcid: 0000-0002-4945-1481 - first_name: Jacek full_name: Kubicki, Jacek last_name: Kubicki - first_name: Ahmet full_name: Kertem, Ahmet last_name: Kertem - first_name: Natalia full_name: Lindner, Natalia last_name: Lindner - first_name: Dimitry full_name: Khakhulin, Dimitry last_name: Khakhulin - first_name: Frederico Alves full_name: Lima, Frederico Alves last_name: Lima - first_name: Tae-Kyu full_name: Choi, Tae-Kyu last_name: Choi - first_name: Mykola full_name: Biednov, Mykola last_name: Biednov - first_name: Natalia full_name: Piergies, Natalia last_name: Piergies - first_name: Peter full_name: Zalden, Peter last_name: Zalden - first_name: Katerina full_name: Kubicek, Katerina last_name: Kubicek - first_name: Angel full_name: Rodriguez-Fernandez, Angel last_name: Rodriguez-Fernandez - first_name: Mohammad Alaraby full_name: Salem, Mohammad Alaraby last_name: Salem - first_name: Thomas full_name: Kühne, Thomas id: '49079' last_name: Kühne - first_name: Wojciech full_name: Gawelda, Wojciech last_name: Gawelda - first_name: Matthias full_name: Bauer, Matthias id: '47241' last_name: Bauer orcid: 0000-0002-9294-6076 citation: ama: Nowakowski M, Huber-Gedert M, Elgabarty H, et al. Ultrafast two-colour X-ray emission spectroscopy reveals excited state landscape in a base metal dyad. arxiv. Published online 2023. apa: Nowakowski, M., Huber-Gedert, M., Elgabarty, H., Kubicki, J., Kertem, A., Lindner, N., Khakhulin, D., Lima, F. A., Choi, T.-K., Biednov, M., Piergies, N., Zalden, P., Kubicek, K., Rodriguez-Fernandez, A., Salem, M. A., Kühne, T., Gawelda, W., & Bauer, M. (2023). Ultrafast two-colour X-ray emission spectroscopy reveals excited state landscape in a base metal dyad. In arxiv. bibtex: '@article{Nowakowski_Huber-Gedert_Elgabarty_Kubicki_Kertem_Lindner_Khakhulin_Lima_Choi_Biednov_et al._2023, title={Ultrafast two-colour X-ray emission spectroscopy reveals excited state landscape in a base metal dyad}, journal={arxiv}, author={Nowakowski, Michał and Huber-Gedert, Marina and Elgabarty, Hossam and Kubicki, Jacek and Kertem, Ahmet and Lindner, Natalia and Khakhulin, Dimitry and Lima, Frederico Alves and Choi, Tae-Kyu and Biednov, Mykola and et al.}, year={2023} }' chicago: Nowakowski, Michał, Marina Huber-Gedert, Hossam Elgabarty, Jacek Kubicki, Ahmet Kertem, Natalia Lindner, Dimitry Khakhulin, et al. “Ultrafast Two-Colour X-Ray Emission Spectroscopy Reveals Excited State Landscape in a Base Metal Dyad.” Arxiv, 2023. ieee: M. Nowakowski et al., “Ultrafast two-colour X-ray emission spectroscopy reveals excited state landscape in a base metal dyad,” arxiv. 2023. mla: Nowakowski, Michał, et al. “Ultrafast Two-Colour X-Ray Emission Spectroscopy Reveals Excited State Landscape in a Base Metal Dyad.” Arxiv, 2023. short: M. Nowakowski, M. Huber-Gedert, H. Elgabarty, J. Kubicki, A. Kertem, N. Lindner, D. Khakhulin, F.A. Lima, T.-K. Choi, M. Biednov, N. Piergies, P. Zalden, K. Kubicek, A. Rodriguez-Fernandez, M.A. Salem, T. Kühne, W. Gawelda, M. Bauer, Arxiv (2023). date_created: 2023-01-30T16:08:46Z date_updated: 2023-08-09T08:58:46Z department: - _id: '35' - _id: '306' language: - iso: eng publication: arxiv status: public title: Ultrafast two-colour X-ray emission spectroscopy reveals excited state landscape in a base metal dyad type: preprint user_id: '48467' year: '2023' ... --- _id: '46485' abstract: - lang: eng text: We present a miniaturized pulse shaping device that creates an arbitrary dispersion through the interaction of multiple metasurfaces on less than 2 mm3 volume. For this, a metalens and a grating-metasurface between two silver mirrors are fabricated. The grating contains further phase information to achieve the device's pulse shaping functionality. article_number: FTh4D.3 author: - first_name: René full_name: Geromel, René last_name: Geromel - first_name: Philip full_name: Georgi, Philip last_name: Georgi - first_name: Maximilian full_name: Protte, Maximilian id: '46170' last_name: Protte - first_name: Tim full_name: Bartley, Tim id: '49683' last_name: Bartley - first_name: Lingling full_name: Huang, Lingling last_name: Huang - first_name: Thomas full_name: Zentgraf, Thomas id: '30525' last_name: Zentgraf orcid: 0000-0002-8662-1101 citation: ama: 'Geromel R, Georgi P, Protte M, Bartley T, Huang L, Zentgraf T. Dispersion control with integrated plasmonic metasurfaces. In: CLEO: Fundamental Science 2023. Technical Digest Series. Optica Publishing Group; 2023. doi:10.1364/cleo_fs.2023.fth4d.3' apa: 'Geromel, R., Georgi, P., Protte, M., Bartley, T., Huang, L., & Zentgraf, T. (2023). Dispersion control with integrated plasmonic metasurfaces. CLEO: Fundamental Science 2023, Article FTh4D.3. CLEO: Fundamental Science 2023, San Jose, USA. https://doi.org/10.1364/cleo_fs.2023.fth4d.3' bibtex: '@inproceedings{Geromel_Georgi_Protte_Bartley_Huang_Zentgraf_2023, series={Technical Digest Series}, title={Dispersion control with integrated plasmonic metasurfaces}, DOI={10.1364/cleo_fs.2023.fth4d.3}, number={FTh4D.3}, booktitle={CLEO: Fundamental Science 2023}, publisher={Optica Publishing Group}, author={Geromel, René and Georgi, Philip and Protte, Maximilian and Bartley, Tim and Huang, Lingling and Zentgraf, Thomas}, year={2023}, collection={Technical Digest Series} }' chicago: 'Geromel, René, Philip Georgi, Maximilian Protte, Tim Bartley, Lingling Huang, and Thomas Zentgraf. “Dispersion Control with Integrated Plasmonic Metasurfaces.” In CLEO: Fundamental Science 2023. Technical Digest Series. Optica Publishing Group, 2023. https://doi.org/10.1364/cleo_fs.2023.fth4d.3.' ieee: 'R. Geromel, P. Georgi, M. Protte, T. Bartley, L. Huang, and T. Zentgraf, “Dispersion control with integrated plasmonic metasurfaces,” presented at the CLEO: Fundamental Science 2023, San Jose, USA, 2023, doi: 10.1364/cleo_fs.2023.fth4d.3.' mla: 'Geromel, René, et al. “Dispersion Control with Integrated Plasmonic Metasurfaces.” CLEO: Fundamental Science 2023, FTh4D.3, Optica Publishing Group, 2023, doi:10.1364/cleo_fs.2023.fth4d.3.' short: 'R. Geromel, P. Georgi, M. Protte, T. Bartley, L. Huang, T. Zentgraf, in: CLEO: Fundamental Science 2023, Optica Publishing Group, 2023.' conference: end_date: 2023-05-12 location: San Jose, USA name: 'CLEO: Fundamental Science 2023' start_date: 2023-05-07 date_created: 2023-08-14T08:19:22Z date_updated: 2023-08-14T08:22:31Z department: - _id: '15' - _id: '230' - _id: '289' - _id: '623' doi: 10.1364/cleo_fs.2023.fth4d.3 language: - iso: eng project: - _id: '53' grant_number: '231447078' name: 'TRR 142: TRR 142 - Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten zu funktionellen Strukturen' - _id: '55' name: 'TRR 142 - B: TRR 142 - Project Area B' - _id: '170' grant_number: '231447078' name: 'TRR 142 - B09: TRR 142 - Effiziente Erzeugung mit maßgeschneiderter optischer Phaselage der zweiten Harmonischen mittels Quasi-gebundener Zustände in GaAs Metaoberflächen (B09*)' publication: 'CLEO: Fundamental Science 2023' publication_status: published publisher: Optica Publishing Group series_title: Technical Digest Series status: public title: Dispersion control with integrated plasmonic metasurfaces type: conference user_id: '30525' year: '2023' ... --- _id: '44851' abstract: - lang: eng text: We present the fabrication of strain-free quantum dots in the In0.53Ga0.47As/In0.52Al0.48As-system lattice matched to InP, as future sources for single and entangled photons for long-haul fiber-based quantum communication in the optical C-band. We achieved these quantum dots by local droplet etching via InAl droplets in an In0.52Al0.48As layer and subsequent filling of the holes with In0.53Ga0.47As. Here, we present detailed investigations of the hole morphologies measured by atomic force microscopy. Statistical analysis of a set of nanoholes reveals a high degree of symmetry for nearly half of them when etched at optimized temperatures. Overgrowth with 50–150 nm In0.52Al0.48As increases their diameter and elongates the holes along the [01̄1]-direction. By systematically scanning the parameter space, we were able to fill the holes with In0.53Ga0.47As, and by capping the filled holes and performing photoluminescence measurements, we observe photoluminescence emission in the O-band up into the C-band depending on the filling height of the nanoholes. author: - first_name: D. full_name: Deutsch, D. last_name: Deutsch - first_name: C. full_name: Buchholz, C. last_name: Buchholz - first_name: V. full_name: Zolatanosha, V. last_name: Zolatanosha - first_name: K. D. full_name: Jöns, K. D. last_name: Jöns - first_name: D. full_name: Reuter, D. last_name: Reuter citation: ama: Deutsch D, Buchholz C, Zolatanosha V, Jöns KD, Reuter D. Telecom C-band photon emission from (In,Ga)As quantum dots generated by filling nanoholes in In0.52Al0.48As layers. AIP Advances. 2023;13(5). doi:10.1063/5.0147281 apa: Deutsch, D., Buchholz, C., Zolatanosha, V., Jöns, K. D., & Reuter, D. (2023). Telecom C-band photon emission from (In,Ga)As quantum dots generated by filling nanoholes in In0.52Al0.48As layers. AIP Advances, 13(5). https://doi.org/10.1063/5.0147281 bibtex: '@article{Deutsch_Buchholz_Zolatanosha_Jöns_Reuter_2023, title={Telecom C-band photon emission from (In,Ga)As quantum dots generated by filling nanoholes in In0.52Al0.48As layers}, volume={13}, DOI={10.1063/5.0147281}, number={5}, journal={AIP Advances}, publisher={AIP Publishing}, author={Deutsch, D. and Buchholz, C. and Zolatanosha, V. and Jöns, K. D. and Reuter, D.}, year={2023} }' chicago: Deutsch, D., C. Buchholz, V. Zolatanosha, K. D. Jöns, and D. Reuter. “Telecom C-Band Photon Emission from (In,Ga)As Quantum Dots Generated by Filling Nanoholes in In0.52Al0.48As Layers.” AIP Advances 13, no. 5 (2023). https://doi.org/10.1063/5.0147281. ieee: 'D. Deutsch, C. Buchholz, V. Zolatanosha, K. D. Jöns, and D. Reuter, “Telecom C-band photon emission from (In,Ga)As quantum dots generated by filling nanoholes in In0.52Al0.48As layers,” AIP Advances, vol. 13, no. 5, 2023, doi: 10.1063/5.0147281.' mla: Deutsch, D., et al. “Telecom C-Band Photon Emission from (In,Ga)As Quantum Dots Generated by Filling Nanoholes in In0.52Al0.48As Layers.” AIP Advances, vol. 13, no. 5, AIP Publishing, 2023, doi:10.1063/5.0147281. short: D. Deutsch, C. Buchholz, V. Zolatanosha, K.D. Jöns, D. Reuter, AIP Advances 13 (2023). date_created: 2023-05-15T08:55:49Z date_updated: 2023-08-14T10:05:15Z department: - _id: '15' - _id: '230' doi: 10.1063/5.0147281 intvolume: ' 13' issue: '5' keyword: - General Physics and Astronomy language: - iso: eng publication: AIP Advances publication_identifier: issn: - 2158-3226 publication_status: published publisher: AIP Publishing status: public title: Telecom C-band photon emission from (In,Ga)As quantum dots generated by filling nanoholes in In0.52Al0.48As layers type: journal_article user_id: '37763' volume: 13 year: '2023' ... --- _id: '46480' article_number: '147317' author: - first_name: Hendrik full_name: Müller, Hendrik last_name: Müller - first_name: Christian full_name: Weinberger, Christian id: '11848' last_name: Weinberger - first_name: Guido full_name: Grundmeier, Guido id: '194' last_name: Grundmeier - first_name: Maria Teresa full_name: de los Arcos de Pedro, Maria Teresa id: '54556' last_name: de los Arcos de Pedro citation: ama: Müller H, Weinberger C, Grundmeier G, de los Arcos de Pedro MT. UV-enhanced environmental charge compensation in near ambient pressure XPS. Journal of Electron Spectroscopy and Related Phenomena. 2023;264. doi:10.1016/j.elspec.2023.147317 apa: Müller, H., Weinberger, C., Grundmeier, G., & de los Arcos de Pedro, M. T. (2023). UV-enhanced environmental charge compensation in near ambient pressure XPS. Journal of Electron Spectroscopy and Related Phenomena, 264, Article 147317. https://doi.org/10.1016/j.elspec.2023.147317 bibtex: '@article{Müller_Weinberger_Grundmeier_de los Arcos de Pedro_2023, title={UV-enhanced environmental charge compensation in near ambient pressure XPS}, volume={264}, DOI={10.1016/j.elspec.2023.147317}, number={147317}, journal={Journal of Electron Spectroscopy and Related Phenomena}, publisher={Elsevier BV}, author={Müller, Hendrik and Weinberger, Christian and Grundmeier, Guido and de los Arcos de Pedro, Maria Teresa}, year={2023} }' chicago: Müller, Hendrik, Christian Weinberger, Guido Grundmeier, and Maria Teresa de los Arcos de Pedro. “UV-Enhanced Environmental Charge Compensation in near Ambient Pressure XPS.” Journal of Electron Spectroscopy and Related Phenomena 264 (2023). https://doi.org/10.1016/j.elspec.2023.147317. ieee: 'H. Müller, C. Weinberger, G. Grundmeier, and M. T. de los Arcos de Pedro, “UV-enhanced environmental charge compensation in near ambient pressure XPS,” Journal of Electron Spectroscopy and Related Phenomena, vol. 264, Art. no. 147317, 2023, doi: 10.1016/j.elspec.2023.147317.' mla: Müller, Hendrik, et al. “UV-Enhanced Environmental Charge Compensation in near Ambient Pressure XPS.” Journal of Electron Spectroscopy and Related Phenomena, vol. 264, 147317, Elsevier BV, 2023, doi:10.1016/j.elspec.2023.147317. short: H. Müller, C. Weinberger, G. Grundmeier, M.T. de los Arcos de Pedro, Journal of Electron Spectroscopy and Related Phenomena 264 (2023). date_created: 2023-08-11T14:11:57Z date_updated: 2023-08-11T14:13:19Z department: - _id: '302' doi: 10.1016/j.elspec.2023.147317 intvolume: ' 264' keyword: - Physical and Theoretical Chemistry - Spectroscopy - Condensed Matter Physics - Atomic and Molecular Physics - and Optics - Radiation - Electronic - Optical and Magnetic Materials language: - iso: eng publication: Journal of Electron Spectroscopy and Related Phenomena publication_identifier: issn: - 0368-2048 publication_status: published publisher: Elsevier BV status: public title: UV-enhanced environmental charge compensation in near ambient pressure XPS type: journal_article user_id: '54556' volume: 264 year: '2023' ... --- _id: '45371' author: - first_name: Julia full_name: Elsner, Julia id: '54277' last_name: Elsner - first_name: Claudia full_name: Tenberge, Claudia id: '67302' last_name: Tenberge - first_name: Sabine full_name: Fechner, Sabine id: '54823' last_name: Fechner orcid: 0000-0001-5645-5870 citation: ama: 'Elsner J, Tenberge C, Fechner S. Videoanalyse des Modellierprozesses von Grundschüler*innen. In: van Vorst H, ed. Lernen, Lehren und Forschen in einer digital geprägten Welt. Vol 43. ; 2023:925-928.' apa: Elsner, J., Tenberge, C., & Fechner, S. (2023). Videoanalyse des Modellierprozesses von Grundschüler*innen. In H. van Vorst (Ed.), Lernen, Lehren und Forschen in einer digital geprägten Welt (Vol. 43, pp. 925–928). bibtex: '@inproceedings{Elsner_Tenberge_Fechner_2023, title={Videoanalyse des Modellierprozesses von Grundschüler*innen}, volume={43}, booktitle={Lernen, Lehren und Forschen in einer digital geprägten Welt}, author={Elsner, Julia and Tenberge, Claudia and Fechner, Sabine}, editor={van Vorst, Helena}, year={2023}, pages={925–928} }' chicago: Elsner, Julia, Claudia Tenberge, and Sabine Fechner. “Videoanalyse des Modellierprozesses von Grundschüler*innen.” In Lernen, Lehren und Forschen in einer digital geprägten Welt, edited by Helena van Vorst, 43:925–28, 2023. ieee: J. Elsner, C. Tenberge, and S. Fechner, “Videoanalyse des Modellierprozesses von Grundschüler*innen,” in Lernen, Lehren und Forschen in einer digital geprägten Welt, 2023, vol. 43, pp. 925–928. mla: Elsner, Julia, et al. “Videoanalyse des Modellierprozesses von Grundschüler*innen.” Lernen, Lehren und Forschen in einer digital geprägten Welt, edited by Helena van Vorst, vol. 43, 2023, pp. 925–28. short: 'J. Elsner, C. Tenberge, S. Fechner, in: H. van Vorst (Ed.), Lernen, Lehren und Forschen in einer digital geprägten Welt, 2023, pp. 925–928.' date_created: 2023-05-31T05:38:24Z date_updated: 2023-08-14T18:16:28Z ddc: - '370' department: - _id: '386' - _id: '588' editor: - first_name: Helena full_name: van Vorst, Helena last_name: van Vorst has_accepted_license: '1' intvolume: ' 43' language: - iso: ger page: 925-928 publication: Lernen, Lehren und Forschen in einer digital geprägten Welt publication_status: published status: public title: Videoanalyse des Modellierprozesses von Grundschüler*innen type: conference user_id: '54823' volume: 43 year: '2023' ... --- _id: '46542' abstract: - lang: eng text: Multiprotein adsorption from complex body fluids represents a highly important and complicated phenomenon in medicine. In this work, multiprotein adsorption from diluted human serum at gold and oxidized iron surfaces is investigated at different serum concentrations and pH values. Adsorption-induced changes in surface topography and the total amount of adsorbed proteins are quantified by atomic force microscopy (AFM) and polarization-modulation infrared reflection absorption spectroscopy (PM-IRRAS), respectively. For both surfaces, stronger protein adsorption is observed at pH 6 compared to pH 7 and pH 8. PM-IRRAS furthermore provides some qualitative insights into the pH-dependent alterations in the composition of the adsorbed multiprotein films. Changes in the amide II/amide I band area ratio and in particular side-chain IR absorption suggest that the increased adsorption at pH 6 is accompanied by a change in protein film composition. Presumably, this is mostly driven by the adsorption of human serum albumin, which at pH 6 adsorbs more readily and thereby replaces other proteins with lower surface affinities in the resulting multiprotein film. article_number: '6060' author: - first_name: Jingyuan full_name: Huang, Jingyuan last_name: Huang - first_name: Yunshu full_name: Qiu, Yunshu last_name: Qiu - first_name: Felix full_name: Lücke, Felix last_name: Lücke - first_name: Jiangling full_name: Su, Jiangling last_name: Su - first_name: Guido full_name: Grundmeier, Guido id: '194' last_name: Grundmeier - first_name: Adrian full_name: Keller, Adrian id: '48864' last_name: Keller orcid: 0000-0001-7139-3110 citation: ama: Huang J, Qiu Y, Lücke F, Su J, Grundmeier G, Keller A. Multiprotein Adsorption from Human Serum at Gold and Oxidized Iron Surfaces Studied by Atomic Force Microscopy and Polarization-Modulation Infrared Reflection Absorption Spectroscopy. Molecules. 2023;28(16). doi:10.3390/molecules28166060 apa: Huang, J., Qiu, Y., Lücke, F., Su, J., Grundmeier, G., & Keller, A. (2023). Multiprotein Adsorption from Human Serum at Gold and Oxidized Iron Surfaces Studied by Atomic Force Microscopy and Polarization-Modulation Infrared Reflection Absorption Spectroscopy. Molecules, 28(16), Article 6060. https://doi.org/10.3390/molecules28166060 bibtex: '@article{Huang_Qiu_Lücke_Su_Grundmeier_Keller_2023, title={Multiprotein Adsorption from Human Serum at Gold and Oxidized Iron Surfaces Studied by Atomic Force Microscopy and Polarization-Modulation Infrared Reflection Absorption Spectroscopy}, volume={28}, DOI={10.3390/molecules28166060}, number={166060}, journal={Molecules}, publisher={MDPI AG}, author={Huang, Jingyuan and Qiu, Yunshu and Lücke, Felix and Su, Jiangling and Grundmeier, Guido and Keller, Adrian}, year={2023} }' chicago: Huang, Jingyuan, Yunshu Qiu, Felix Lücke, Jiangling Su, Guido Grundmeier, and Adrian Keller. “Multiprotein Adsorption from Human Serum at Gold and Oxidized Iron Surfaces Studied by Atomic Force Microscopy and Polarization-Modulation Infrared Reflection Absorption Spectroscopy.” Molecules 28, no. 16 (2023). https://doi.org/10.3390/molecules28166060. ieee: 'J. Huang, Y. Qiu, F. Lücke, J. Su, G. Grundmeier, and A. Keller, “Multiprotein Adsorption from Human Serum at Gold and Oxidized Iron Surfaces Studied by Atomic Force Microscopy and Polarization-Modulation Infrared Reflection Absorption Spectroscopy,” Molecules, vol. 28, no. 16, Art. no. 6060, 2023, doi: 10.3390/molecules28166060.' mla: Huang, Jingyuan, et al. “Multiprotein Adsorption from Human Serum at Gold and Oxidized Iron Surfaces Studied by Atomic Force Microscopy and Polarization-Modulation Infrared Reflection Absorption Spectroscopy.” Molecules, vol. 28, no. 16, 6060, MDPI AG, 2023, doi:10.3390/molecules28166060. short: J. Huang, Y. Qiu, F. Lücke, J. Su, G. Grundmeier, A. Keller, Molecules 28 (2023). date_created: 2023-08-16T10:51:48Z date_updated: 2023-08-16T10:53:08Z department: - _id: '302' doi: 10.3390/molecules28166060 intvolume: ' 28' issue: '16' keyword: - Chemistry (miscellaneous) - Analytical Chemistry - Organic Chemistry - Physical and Theoretical Chemistry - Molecular Medicine - Drug Discovery - Pharmaceutical Science language: - iso: eng publication: Molecules publication_identifier: issn: - 1420-3049 publication_status: published publisher: MDPI AG status: public title: Multiprotein Adsorption from Human Serum at Gold and Oxidized Iron Surfaces Studied by Atomic Force Microscopy and Polarization-Modulation Infrared Reflection Absorption Spectroscopy type: journal_article user_id: '48864' volume: 28 year: '2023' ... --- _id: '46543' abstract: - lang: eng text: The influence of nanoscale surface topography on protein adsorption is highly important for numerous applications in medicine and technology. Herein, ferritin adsorption at flat and nanofaceted, single-crystalline Al2O3 surfaces is investigated using atomic force microscopy and X-ray photoelectron spectroscopy. The nanofaceted surfaces are generated by the thermal annealing of Al2O3 wafers at temperatures above 1000 °C, which leads to the formation of faceted saw-tooth-like surface topographies with periodicities of about 160 nm and amplitudes of about 15 nm. Ferritin adsorption at these nanofaceted surfaces is notably suppressed compared to the flat surface at a concentration of 10 mg/mL, which is attributed to lower adsorption affinities of the newly formed facets. Consequently, adsorption is restricted mostly to the pattern grooves, where the proteins can maximize their contact area with the surface. However, this effect depends on the protein concentration, with an inverse trend being observed at 30 mg/mL. Furthermore, different ferritin adsorption behavior is observed at topographically similar nanofacet patterns fabricated at different annealing temperatures and attributed to different step and kink densities. These results demonstrate that while protein adsorption at solid surfaces can be notably affected by nanofacet patterns, fine-tuning protein adsorption in this way requires the precise control of facet properties. article_number: '12808' author: - first_name: Bhanu K. full_name: Pothineni, Bhanu K. last_name: Pothineni - first_name: Sabrina full_name: Kollmann, Sabrina last_name: Kollmann - first_name: Xinyang full_name: Li, Xinyang last_name: Li - first_name: Guido full_name: Grundmeier, Guido id: '194' last_name: Grundmeier - first_name: Denise J. full_name: Erb, Denise J. last_name: Erb - first_name: Adrian full_name: Keller, Adrian id: '48864' last_name: Keller orcid: 0000-0001-7139-3110 citation: ama: Pothineni BK, Kollmann S, Li X, Grundmeier G, Erb DJ, Keller A. Adsorption of Ferritin at Nanofaceted Al2O3 Surfaces. International Journal of Molecular Sciences. 2023;24(16). doi:10.3390/ijms241612808 apa: Pothineni, B. K., Kollmann, S., Li, X., Grundmeier, G., Erb, D. J., & Keller, A. (2023). Adsorption of Ferritin at Nanofaceted Al2O3 Surfaces. International Journal of Molecular Sciences, 24(16), Article 12808. https://doi.org/10.3390/ijms241612808 bibtex: '@article{Pothineni_Kollmann_Li_Grundmeier_Erb_Keller_2023, title={Adsorption of Ferritin at Nanofaceted Al2O3 Surfaces}, volume={24}, DOI={10.3390/ijms241612808}, number={1612808}, journal={International Journal of Molecular Sciences}, publisher={MDPI AG}, author={Pothineni, Bhanu K. and Kollmann, Sabrina and Li, Xinyang and Grundmeier, Guido and Erb, Denise J. and Keller, Adrian}, year={2023} }' chicago: Pothineni, Bhanu K., Sabrina Kollmann, Xinyang Li, Guido Grundmeier, Denise J. Erb, and Adrian Keller. “Adsorption of Ferritin at Nanofaceted Al2O3 Surfaces.” International Journal of Molecular Sciences 24, no. 16 (2023). https://doi.org/10.3390/ijms241612808. ieee: 'B. K. Pothineni, S. Kollmann, X. Li, G. Grundmeier, D. J. Erb, and A. Keller, “Adsorption of Ferritin at Nanofaceted Al2O3 Surfaces,” International Journal of Molecular Sciences, vol. 24, no. 16, Art. no. 12808, 2023, doi: 10.3390/ijms241612808.' mla: Pothineni, Bhanu K., et al. “Adsorption of Ferritin at Nanofaceted Al2O3 Surfaces.” International Journal of Molecular Sciences, vol. 24, no. 16, 12808, MDPI AG, 2023, doi:10.3390/ijms241612808. short: B.K. Pothineni, S. Kollmann, X. Li, G. Grundmeier, D.J. Erb, A. Keller, International Journal of Molecular Sciences 24 (2023). date_created: 2023-08-16T10:52:25Z date_updated: 2023-08-16T10:53:00Z department: - _id: '302' doi: 10.3390/ijms241612808 intvolume: ' 24' issue: '16' keyword: - Inorganic Chemistry - Organic Chemistry - Physical and Theoretical Chemistry - Computer Science Applications - Spectroscopy - Molecular Biology - General Medicine - Catalysis language: - iso: eng publication: International Journal of Molecular Sciences publication_identifier: issn: - 1422-0067 publication_status: published publisher: MDPI AG status: public title: Adsorption of Ferritin at Nanofaceted Al2O3 Surfaces type: journal_article user_id: '48864' volume: 24 year: '2023' ... --- _id: '46741' author: - first_name: Mario Fabian full_name: Zscherp, Mario Fabian last_name: Zscherp - first_name: Silas Aurel full_name: Jentsch, Silas Aurel last_name: Jentsch - first_name: Marius Johannes full_name: Müller, Marius Johannes last_name: Müller - first_name: Vitalii full_name: Lider, Vitalii last_name: Lider - first_name: Celina full_name: Becker, Celina last_name: Becker - first_name: Limei full_name: Chen, Limei last_name: Chen - first_name: Mario full_name: Littmann, Mario last_name: Littmann - first_name: Falco full_name: Meier, Falco last_name: Meier - first_name: Andreas full_name: Beyer, Andreas last_name: Beyer - first_name: Detlev Michael full_name: Hofmann, Detlev Michael last_name: Hofmann - first_name: Donat Josef full_name: As, Donat Josef id: '14' last_name: As orcid: 0000-0003-1121-3565 - first_name: Peter Jens full_name: Klar, Peter Jens last_name: Klar - first_name: Kerstin full_name: Volz, Kerstin last_name: Volz - first_name: Sangam full_name: Chatterjee, Sangam last_name: Chatterjee - first_name: Jörg full_name: Schörmann, Jörg last_name: Schörmann citation: ama: Zscherp MF, Jentsch SA, Müller MJ, et al. Overcoming the Miscibility Gap of GaN/InN in MBE Growth of Cubic InxGa1–xN. ACS Applied Materials & Interfaces. 2023;15(33):39513-39522. doi:10.1021/acsami.3c06319 apa: Zscherp, M. F., Jentsch, S. A., Müller, M. J., Lider, V., Becker, C., Chen, L., Littmann, M., Meier, F., Beyer, A., Hofmann, D. M., As, D. J., Klar, P. J., Volz, K., Chatterjee, S., & Schörmann, J. (2023). Overcoming the Miscibility Gap of GaN/InN in MBE Growth of Cubic InxGa1–xN. ACS Applied Materials & Interfaces, 15(33), 39513–39522. https://doi.org/10.1021/acsami.3c06319 bibtex: '@article{Zscherp_Jentsch_Müller_Lider_Becker_Chen_Littmann_Meier_Beyer_Hofmann_et al._2023, title={Overcoming the Miscibility Gap of GaN/InN in MBE Growth of Cubic InxGa1–xN}, volume={15}, DOI={10.1021/acsami.3c06319}, number={33}, journal={ACS Applied Materials & Interfaces}, publisher={American Chemical Society (ACS)}, author={Zscherp, Mario Fabian and Jentsch, Silas Aurel and Müller, Marius Johannes and Lider, Vitalii and Becker, Celina and Chen, Limei and Littmann, Mario and Meier, Falco and Beyer, Andreas and Hofmann, Detlev Michael and et al.}, year={2023}, pages={39513–39522} }' chicago: 'Zscherp, Mario Fabian, Silas Aurel Jentsch, Marius Johannes Müller, Vitalii Lider, Celina Becker, Limei Chen, Mario Littmann, et al. “Overcoming the Miscibility Gap of GaN/InN in MBE Growth of Cubic InxGa1–xN.” ACS Applied Materials & Interfaces 15, no. 33 (2023): 39513–22. https://doi.org/10.1021/acsami.3c06319.' ieee: 'M. F. Zscherp et al., “Overcoming the Miscibility Gap of GaN/InN in MBE Growth of Cubic InxGa1–xN,” ACS Applied Materials & Interfaces, vol. 15, no. 33, pp. 39513–39522, 2023, doi: 10.1021/acsami.3c06319.' mla: Zscherp, Mario Fabian, et al. “Overcoming the Miscibility Gap of GaN/InN in MBE Growth of Cubic InxGa1–xN.” ACS Applied Materials & Interfaces, vol. 15, no. 33, American Chemical Society (ACS), 2023, pp. 39513–22, doi:10.1021/acsami.3c06319. short: M.F. Zscherp, S.A. Jentsch, M.J. Müller, V. Lider, C. Becker, L. Chen, M. Littmann, F. Meier, A. Beyer, D.M. Hofmann, D.J. As, P.J. Klar, K. Volz, S. Chatterjee, J. Schörmann, ACS Applied Materials & Interfaces 15 (2023) 39513–39522. date_created: 2023-08-28T06:45:20Z date_updated: 2023-08-28T06:46:23Z department: - _id: '15' - _id: '230' doi: 10.1021/acsami.3c06319 intvolume: ' 15' issue: '33' keyword: - General Materials Science language: - iso: eng page: 39513-39522 publication: ACS Applied Materials & Interfaces publication_identifier: issn: - 1944-8244 - 1944-8252 publication_status: published publisher: American Chemical Society (ACS) status: public title: Overcoming the Miscibility Gap of GaN/InN in MBE Growth of Cubic InxGa1–xN type: journal_article user_id: '42514' volume: 15 year: '2023' ... --- _id: '37466' abstract: - lang: eng text: Typically, head fakes in basketball are generated to, and actually do, deteriorate performance on the side of the observer. However, potential costs at the side of the producer of a fake action have only rarely been investigated before. It is thus not clear yet if the benefit (i.e., slowed reactions in the observer) of performing a head fake is overestimated due to concurrently arising fake production costs (i.e., slowed performance in the producer of a head fake). Therefore, we studied potential head-fake production costs with two experiments. Novice participants were asked to generate passes to the left or right side, either with or without head fakes. In Experiment 1, these actions were determined by an auditory stimulus (i.e., a 440 Hz or 1200 Hz sinus or jigsaw wave). After an interstimulus interval (ISI) of either 0 ms, 800 ms, or 1500 ms, which served the preparation of the action, the cued action had to be executed. In Experiment 2, passing to the left or right, either with or without a head fake, was determined by a visual stimulus (i.e., a player with a red or blue jersey defending either the right or left side). After an ISI of either 0 ms, 400 ms, 800 ms, or 1200 ms, the cued action had to be executed. In both experiments, we observed higher reaction times (RTs) for passes with head fakes as compared to passes without head fakes for no and an intermediate preparation interval (from ISI 0 ms to 800 ms), but no difference for a long preparation interval (for an ISI of 1200 ms and 1500 ms). Both experiments show that generating fake actions produces performance costs, however, these costs can be overcome by a longer preparation phase before movement execution. article_number: '103045' article_type: original author: - first_name: Iris full_name: Güldenpenning, Iris id: '52931' last_name: Güldenpenning orcid: 0000-0003-0549-5543 - first_name: Matthias full_name: Weigelt, Matthias id: '36388' last_name: Weigelt - first_name: Nils Tobias full_name: Böer, Nils Tobias id: '52000' last_name: Böer orcid: 0000-0002-0236-7282 - first_name: Wilfried full_name: Kunde, Wilfried last_name: Kunde citation: ama: 'Güldenpenning I, Weigelt M, Böer NT, Kunde W. Producing deceptive actions in sports: The costs of generating head fakes in basketball. Human Movement Science. 2023;87. doi:10.1016/j.humov.2022.103045' apa: 'Güldenpenning, I., Weigelt, M., Böer, N. T., & Kunde, W. (2023). Producing deceptive actions in sports: The costs of generating head fakes in basketball. Human Movement Science, 87, Article 103045. https://doi.org/10.1016/j.humov.2022.103045' bibtex: '@article{Güldenpenning_Weigelt_Böer_Kunde_2023, title={Producing deceptive actions in sports: The costs of generating head fakes in basketball}, volume={87}, DOI={10.1016/j.humov.2022.103045}, number={103045}, journal={Human Movement Science}, publisher={Elsevier BV}, author={Güldenpenning, Iris and Weigelt, Matthias and Böer, Nils Tobias and Kunde, Wilfried}, year={2023} }' chicago: 'Güldenpenning, Iris, Matthias Weigelt, Nils Tobias Böer, and Wilfried Kunde. “Producing Deceptive Actions in Sports: The Costs of Generating Head Fakes in Basketball.” Human Movement Science 87 (2023). https://doi.org/10.1016/j.humov.2022.103045.' ieee: 'I. Güldenpenning, M. Weigelt, N. T. Böer, and W. Kunde, “Producing deceptive actions in sports: The costs of generating head fakes in basketball,” Human Movement Science, vol. 87, Art. no. 103045, 2023, doi: 10.1016/j.humov.2022.103045.' mla: 'Güldenpenning, Iris, et al. “Producing Deceptive Actions in Sports: The Costs of Generating Head Fakes in Basketball.” Human Movement Science, vol. 87, 103045, Elsevier BV, 2023, doi:10.1016/j.humov.2022.103045.' short: I. Güldenpenning, M. Weigelt, N.T. Böer, W. Kunde, Human Movement Science 87 (2023). date_created: 2023-01-18T18:47:16Z date_updated: 2023-09-12T09:14:38Z department: - _id: '266' - _id: '17' doi: 10.1016/j.humov.2022.103045 intvolume: ' 87' keyword: - Experimental and Cognitive Psychology - Orthopedics and Sports Medicine - General Medicine - Biophysics language: - iso: eng publication: Human Movement Science publication_identifier: issn: - 0167-9457 publication_status: published publisher: Elsevier BV quality_controlled: '1' status: public title: 'Producing deceptive actions in sports: The costs of generating head fakes in basketball' type: journal_article user_id: '80673' volume: 87 year: '2023' ... --- _id: '46868' abstract: - lang: eng text: AbstractSupplementing an earlier analysis of event‐related potentials in extensive motor learning (Margraf et al., 2022a, 2022b), frontal theta‐band activity (4–8 Hz) was scrutinized. Thirty‐seven participants learned a sequential arm movement with 192 trials in each of five practice sessions. Feedback, based on a performance adaptive bandwidth, was given after every trial. Electroencephalogram (EEG) was recorded in the first and last practice sessions. The degree of motor automatization was tested under dual‐task conditions in a pre‐test–post‐test design. Quantitative error information was transported in both feedback conditions (positive and negative). Frontal theta activity was discussed as a general signal that cognitive control is needed and, therefore, was expected to be higher after negative feedback. Extensive motor practice promotes automatization, and therefore, decreased frontal theta activity was expected in the later practice. Further, it was expected that frontal theta was predictive for subsequent behavioural adaptations and the amount of motor automatization. As the results show, induced frontal theta power was higher after negative feedback and decreased after five sessions of practice. Moreover, induced theta activity was predictive for error correction and, therefore, an indicator of whether the recruited cognitive resources successfully induced behavioural adaptations. It remains to be solved why these effects, which fit well with the theoretical assumptions, were only revealed by the induced part of frontal theta activity. Further, the amount of theta activity during practice was not predictive for the degree of motor automatization. It seems that there might be a dissociation between attentional resources associated with feedback processing and attentional resources associated with motor control. author: - first_name: Linda full_name: Margraf, Linda id: '77456' last_name: Margraf orcid: 0000-0001-5972-612X - first_name: Daniel full_name: Krause, Daniel last_name: Krause - first_name: Matthias full_name: Weigelt, Matthias id: '36388' last_name: Weigelt citation: ama: Margraf L, Krause D, Weigelt M. Frontal theta reveals further information about neural valence‐dependent processing of augmented feedback in extensive motor practice - A secondary analysis. European Journal of Neuroscience. 2023;57(8):1297-1316. doi:10.1111/ejn.15951 apa: Margraf, L., Krause, D., & Weigelt, M. (2023). Frontal theta reveals further information about neural valence‐dependent processing of augmented feedback in extensive motor practice - A secondary analysis. European Journal of Neuroscience, 57(8), 1297–1316. https://doi.org/10.1111/ejn.15951 bibtex: '@article{Margraf_Krause_Weigelt_2023, title={Frontal theta reveals further information about neural valence‐dependent processing of augmented feedback in extensive motor practice - A secondary analysis}, volume={57}, DOI={10.1111/ejn.15951}, number={8}, journal={European Journal of Neuroscience}, publisher={Wiley}, author={Margraf, Linda and Krause, Daniel and Weigelt, Matthias}, year={2023}, pages={1297–1316} }' chicago: 'Margraf, Linda, Daniel Krause, and Matthias Weigelt. “Frontal Theta Reveals Further Information about Neural Valence‐dependent Processing of Augmented Feedback in Extensive Motor Practice - A Secondary Analysis.” European Journal of Neuroscience 57, no. 8 (2023): 1297–1316. https://doi.org/10.1111/ejn.15951.' ieee: 'L. Margraf, D. Krause, and M. Weigelt, “Frontal theta reveals further information about neural valence‐dependent processing of augmented feedback in extensive motor practice - A secondary analysis,” European Journal of Neuroscience, vol. 57, no. 8, pp. 1297–1316, 2023, doi: 10.1111/ejn.15951.' mla: Margraf, Linda, et al. “Frontal Theta Reveals Further Information about Neural Valence‐dependent Processing of Augmented Feedback in Extensive Motor Practice - A Secondary Analysis.” European Journal of Neuroscience, vol. 57, no. 8, Wiley, 2023, pp. 1297–316, doi:10.1111/ejn.15951. short: L. Margraf, D. Krause, M. Weigelt, European Journal of Neuroscience 57 (2023) 1297–1316. date_created: 2023-09-08T08:17:48Z date_updated: 2023-09-19T06:01:48Z department: - _id: '266' doi: 10.1111/ejn.15951 intvolume: ' 57' issue: '8' keyword: - General Neuroscience language: - iso: eng page: 1297-1316 publication: European Journal of Neuroscience publication_identifier: issn: - 0953-816X - 1460-9568 publication_status: published publisher: Wiley status: public title: Frontal theta reveals further information about neural valence‐dependent processing of augmented feedback in extensive motor practice - A secondary analysis type: journal_article user_id: '77456' volume: 57 year: '2023' ...