TY - GEN A1 - Neyret, Margot A1 - Le Provost, Gaëtane A1 - Boesing, Andrea Larissa A1 - Schneider, Florian D. A1 - Baulechner, Dennis A1 - Bergmann, Joana A1 - Vries, Franciska T. de A1 - Fiore-Donno, Anna Maria A1 - Geisen, Stefan A1 - Goldmann, Kezia A1 - Merges, Anna A1 - Saifutdinov, Ruslan A. A1 - Simons, Nadja K. A1 - Tobias, Joseph A. A1 - Zaitsev, Andrey S. A1 - Gossner, Martin M. A1 - Jung, Kirsten A1 - Kandeler, Ellen A1 - Krauss, Jochen A1 - Penone, Caterina A1 - Schloter, Michael A1 - Schulz, Stefanie A1 - Staab, Michael A1 - Wolters, Volkmar A1 - Apostolakis, Antonios A1 - Birkhofer, Klaus A1 - Boch, Steffen A1 - Boeddinghaus, Runa S. A1 - Bolliger, Ralph A1 - Bonkowski, Michael A1 - Buscot, François A1 - Dumack, Kenneth A1 - Fischer, Markus A1 - Gan, Huei Ying A1 - Heinze, Johannes A1 - Hölzel, Norbert A1 - John, Katharina A1 - Klaus, Valentin H. A1 - Kleinebecker, Till A1 - Marhan, Sven A1 - Müller, Jörg A1 - Renner, Swen C. A1 - Rillig, Matthias C. A1 - Schenk, Noëlle V. A1 - Schöning, Ingo A1 - Schrumpf, Marion A1 - Seibold, Sebastian A1 - Socher, Stephanie A. A1 - Solly, Emily F. A1 - Teuscher, Miriam A1 - Kleunen, Mark van A1 - Wubet, Tesfaye A1 - Manning, Peter T1 - A slow-fast trait continuum at the whole community level in relation to land-use intensification T2 - Nature Communications N2 - AbstractOrganismal functional strategies form a continuum from slow- to fast-growing organisms, in response to common drivers such as resource availability and disturbance. However, whether there is synchronisation of these strategies at the entire community level is unclear. Here, we combine trait data for 2800 above- and belowground taxa from 14 trophic guilds spanning a disturbance and resource availability gradient in German grasslands. The results indicate that most guilds consistently respond to these drivers through both direct and trophically mediated effects, resulting in a ‘slow-fast’ axis at the level of the entire community. Using 15 indicators of carbon and nutrient fluxes, biomass production and decomposition, we also show that fast trait communities are associated with faster rates of ecosystem functioning. These findings demonstrate that ‘slow’ and ‘fast’ strategies can be manifested at the level of whole communities, opening new avenues of ecosystem-level functional classification. KW - General Physics and Astronomy KW - General Biochemistry KW - General Chemistry KW - Multidisciplinary KW - Genetics and Molecular Biology Y1 - 2024 U6 - https://doi.org/10.1038/s41467-024-45113-5 SN - 2041-1723 VL - 15 IS - 1 ER - TY - GEN A1 - Fischer, Ulrich A1 - Häusler, Tobias A1 - Rogaß, Harald A1 - Rottmann, M. A1 - Kraft, A. A1 - Heckner, K.-H. T1 - Heat Transport and Thermal Expansion of Electrochromic Glazing Systems due to Solar Irradiation T2 - International Journal of Thermophysics Y1 - 2003 SN - 1572-9567 N1 - Fifteenth Symposium on Thermophysical Properties, Boulder 2003 VL - 25 IS - 4 SP - 1299 EP - 1307 ER - TY - CHAP A1 - Häusler, Tobias A1 - Fischer, Ulrich A1 - Rottmann, M. A1 - Kraft, A. A1 - Heckner, K.-H. T1 - Solar Optical Properties and Daylight Potential of Electrochromic Windows T2 - World Renewable Energy Congress VIII, book of abstracts, Denver, Colorado USA USA, August 29 - September 3, 2004 Y1 - 2004 PB - National Renewable Energy Laboratory CY - Golden ER - TY - GEN A1 - Weiß, Sabine A1 - Meissner, Andreas A1 - Guillardeau, A. A1 - Dudzinski, Wlodzimierz A1 - Fischer, Annette T1 - Characterisation of microstructure and microtexture of coronary artery stents after fatigue deformation T2 - Fatigue 2006, Proceedings 9th International Fatigue Congress May 14-19, 2006 Atlanta Y1 - 2006 PB - Georgia Institute of Technology CY - Atlanta, Ga. ER - TY - GEN A1 - Fischer, Annette A1 - Burgaud, D. A1 - Amer, A. E. A1 - Weiß, Sabine T1 - The fatigue Aspect in metal on metal wear T2 - Cost 533 biotribology, materials for improved wear resistance of total artificial joints, 29 october 2007, Fundación Tekniker, Eibar, Spain Y1 - 2007 SN - 978-84-932064-4-4 SP - 35 EP - 44 PB - Tekniker CY - Eibar, Guipúzcoa ER - TY - GEN A1 - Fischer, Alfons A1 - Weiß, Sabine A1 - Wimmer, Markus A. T1 - The Tribological Difference between Biomedical Steels and CoCrMo-Alloys T2 - Journal of the Mechanical Behavior of Biomedical Materials Y1 - 2012 SN - 1878-0180 VL - 9 SP - 50 EP - 62 ER - TY - GEN A1 - Amer, A. E. A1 - Weiß, Sabine A1 - Fischer, Annette T1 - Improvement of fatigue resistance of low-nickel stainless steels for biomedical applications compared to CoCr-alloys T2 - Steel grips Y1 - 2009 SN - 1866-8453 VL - 7 IS - 6 SP - 457 EP - 461 ER - TY - GEN A1 - Fischer, Annette A1 - Burgaud, D. A1 - Amer, A. E. A1 - Weiß, Sabine T1 - Fatigue aspects of the generation of nanoparticles during wear of biomedical alloys T2 - 8th World Biomaterials Congress 2008, Amsterdam, 28 May - 1 June 2008 Y1 - 2009 SN - 978-1-61567-080-2 PB - Curran Associates Inc. CY - Red Hook, NY ER - TY - GEN A1 - Körner, Roman A1 - Schwarz, Daniel A1 - Fischer, Inga Anita A1 - Augel, Lion A1 - Bechler, Stefan A1 - Hänel, Linda A. A1 - Kern, Michael A1 - Oehme, Michael A1 - Rolseth, Erlend Granbo A1 - Schwartz, Bernhard A1 - Weißhaupt, David A1 - Zhang, Wogong A1 - Schulze, Jörg T1 - The Zener-Emitter: A Novel Superluminescent Ge Optical Waveguide-Amplifier with 4.7 dB Gain at 92 mA Based on Free-Carrier Modulation by Drect Zener Tunneling Monolithically Integrated on Si T2 - 2016 IEEE International Electronic Devices Meeting (IEDM), 3-7 Dec. 2016 Y1 - 2016 SN - 978-1-5090-3901-2 SN - 978-1-5090-3902-9 SP - 22.5.1 EP - 22.5.4 PB - IEEE CY - Piscataway, NJ ER - TY - GEN A1 - Boch, Steffen A1 - Allan, Eric A1 - Birkhofer, Klaus A1 - Bossdorf, Oliver A1 - Blüthgen, Nico A1 - Christ-Breulmann, Sabina A1 - Diekötter, Tim A1 - Dormann, Carsten F. A1 - Gossner, Martin M. A1 - Hallmann, Christine A1 - Hemp, Andreas A1 - Hölzel, Norbert A1 - Jung, Kirsten A1 - Klaus, Valentin H. A1 - Klein, Alexandra M. A1 - Kleinebecker, Till A1 - Lange, Markus A1 - Müller, Jörg A1 - Nacke, Heiko A1 - Prati, Daniel A1 - Renner, Swen C. A1 - Rothenwöhrer, Christoph A1 - Schall, Peter A1 - Schulze, Ernst-Detlef A1 - Socher, Stephanie A. A1 - Tscharntke, Teja A1 - Türke, Manfred A1 - Weiner, Christiane N. A1 - Weisser, Wolfgang W. A1 - Westphal, Catrin A1 - Wolters, Volkmar A1 - Wubet, Tesfaye A1 - Fischer, Markus T1 - Extensive und jährlich wechselnde Nutzungsintensität fördert den Artenreichtum im Grünland T2 - ANLIEGEN NATUR Y1 - 2016 UR - https://www.biom.uni-freiburg.de/mitarbeiter/dormann/boch2016anliegennatur.pdf SN - 1864-0729 VL - 38 IS - 1 SP - 86 EP - 95 ER - TY - GEN A1 - Schmidt, Thomas A1 - Ahrens, Christian A1 - Flege, Jan Ingo A1 - Jaye, Cherno A1 - Fischer, Daniel A. A1 - Falta, Jens T1 - Growth of Epitaxial 3,4,9,10-Perylene Tetracarboxylic Dianhydride on Bi-Terminated Silicon T2 - Journal of Physical Chemistry C N2 - The epitaxial quality of thin films crucially depends on their interaction with the substrate. Up to now, Ag-terminated Si(111) has been employed as the model substrate for the growth of 3,4,9,10-perylene tetracarboxylic dianhydride (PTCDA) on semiconductors. In this study, we will show that Bi termination results in PTCDA films of superior epitaxial quality. We have studied the growth of PTCDA on bismuth-passivated Si(111) in detail by means of spot profile analysis of low-energy electron diffraction (SPA-LEED), X-ray photoemission spectroscopy (XPS), near-edge X-ray absorptionfine structure (NEXAFS), and scanning tunneling microscopy (STM). The XPS results reveal the presence of intact PTCDA molecules on the surface upon adsorption. NEXAFS data indicate the PTCDA molecules being oriented with their molecular plane parallel to the surface. STM shows a very smooth growth front of the PTCDA film, preserving the step structure of the substrate. High-resolution SPA-LEED data demonstrate the presence of a multidomain surface with a rich variety of PTCDA surface structures, which were identified to be most prominently herring-bone polytypes. However, in the monolayer range, quadratic brick-wall structures and a nearly square-like structure as well as a perylene-like structure have also been found. Despite the simultaneous presence of multiple domains, the individual domains show excellent lateral ordering, with larger domain sizes as compared to the case of Ag-terminated Si(111). KW - dianhydride KW - Bi-terminated silicon KW - spot profile analysis of low-energy electron diffraction (SPA-LEED) KW - X-ray photoemission spectroscopy (XPS) KW - near-edge X-ray absorptionfine structure (NEXAFS) KW - scanning tunneling microscopy (STM) Y1 - 2019 U6 - https://doi.org/10.1021/acs.jpcc.8b10396 SN - 1932-7447 SN - 1932-7455 VL - 123 IS - 12 SP - 7097 EP - 7109 ER - TY - GEN A1 - Fischer, Saskia M. A1 - Woods, Heather A. A1 - Bilz, Ludwig T1 - Class teachers’ bullying-related self-efficacy and their students’ bullying victimization, bullying perpetration, and combined victimization and perpetration T2 - Journal of Aggression, Maltreatment & Trauma N2 - Teachers’ responses to incidents of bullying among students can be important for bullying dynamics. Theoretical models of teachers’ intervention competence and the theory of planned behavior suggest that teachers’ bullying intervention self-efficacy may be associated with teachers’ responses to bullying and students’ bullying behavior and bullying victimization experiences. Several studies report an association between teachers’ self-efficacy and their intervention behavior in incidents of bullying. However, the possible association with student bullying perpetration has rarely been examined so far. The current study explores the association between class teachers’ self-efficacy and students’ bullying victimization, perpetration, and combined bully-victim behavior in a sample of 2,071 students and their 93 class teachers in Germany. The results suggest an association between class teachers’ self-efficacy and students’ perpetration behavior. The higher teachers’ bullying intervention self-efficacy, the fewer students seem to bully other students. In contrast, teachers’ self-efficacy was not associated with students’ victimization experiences and students’ bully-victim behavior. Possible underlying mechanisms, as well as limitations of the present results, are discussed. Further research is needed to substantiate the findings. KW - bullying KW - teacher KW - self-efficacy KW - victimization KW - perpetration KW - bully-victim Y1 - 2021 U6 - https://doi.org/10.1080/10926771.2021.1933290 SN - 1092-6771 ER - TY - GEN A1 - Elogail, Yasmine A1 - Berkmann, Fritz A1 - Clausen, Caterina J. A1 - Fischer, Inga Anita A1 - Hänel, Linda A. A1 - Schwarz, Daniel A1 - Schulze, Jörg T1 - Investigation of Ge-Based P-Channel Planar-Doped Barrier FETs integrated on Si T2 - Microelectronics Journal Y1 - 2022 U6 - https://doi.org/10.1016/j.mejo.2022.105404 SN - 1879-2391 VL - 123 ER - TY - GEN A1 - Steuer, O. A1 - Liedke, Maciej O. A1 - Butterling, M. A1 - Schwarz, D. A1 - Schulze, J. A1 - Li, Z. A1 - Wagner, A. A1 - Fischer, Inga Anita A1 - Hübner, R. A1 - Zhou, S. T1 - Evolution of point defects in pulsed-laser-melted Ge1-xSnx probed by positron annihilation lifetime spectroscopy T2 - Journal of Physics: Condensed Matter N2 - Direct-band-gap Germanium-Tin alloys (Ge1-xSnx) with high carrier mobilities are promising materials for nano- and optoelectronics. The concentration of open volume defects in the alloy, such as Sn and Ge vacancies, influences the final device performance. In this article, we present an evaluation of the point defects in molecular-beam-epitaxy grown Ge1-xSnx films treated by post-growth nanosecond-range pulsed laser melting (PLM). Doppler broadening – variable energy positron annihilation spectroscopy and variable energy positron annihilation lifetime spectroscopy are used to investigate the defect nanostructure in the Ge1-xSnx films exposed to increasing laser energy density. The experimental results, supported with ATomic SUPerposition calculations, evidence that after PLM, the average size of the open volume defects increases, which represents a raise in concentration of vacancy agglomerations, but the overall defect density is reduced as a function of the PLM fluence. At the same time, the positron annihilation spectroscopy analysis provides information about dislocations and Ge vacancies decorated by Sn atoms. Moreover, it is shown that the PLM reduces the strain in the layer, while dislocations are responsible for trapping of Sn and formation of small Sn-rich-clusters. KW - GeSn KW - laser annealing KW - positron annihilation KW - PLM KW - point defects Y1 - 2023 UR - https://iopscience.iop.org/article/10.1088/1361-648X/ad0a10/meta U6 - https://doi.org/10.1088/1361-648X/ad0a10 SN - 0953-8984 VL - 36 IS - 8 SP - 1 EP - 11 ER - TY - CHAP A1 - Schneider, Bernd Uwe A1 - Fischer, H. A1 - Rumpelt, A. T1 - Veränderungen von Wurzel- und Mykorrhizazönosen im Zuge von Waldumbaumaßnahmen Y1 - 2002 ER - TY - CHAP A1 - Fischer, Thomas A1 - Steiner, A. A1 - Krakau, U. T1 - Influence of nitrogen deposition on root mineralization and turnover in two Scots pine (Pinus sylvestris L.) stands in northeastern Germany Y1 - 2004 ER - TY - GEN A1 - Reiter, Sebastian A1 - Ratzke, Markus A1 - Nitsch, Paul-Gregor A1 - Mai, Christian A1 - Spirito, Davide A1 - Corley-Wiciak, Agnieszka Anna A1 - Wenger, Christian A1 - Fischer, Inga A. T1 - Optical response of titanium nitride plasmonic nanohole arrays : impact of square and hexagonal array geometry, pitch, and nanohole diameter T2 - Plasmonics N2 - Plasmonic nanohole arrays (NHAs) exhibit extraordinary optical transmission (EOT) evoked by resonant excitation of surface plasmons at an excitation wavelength, which is highly sensitive to changes in refractive index in the surrounding dielectric. This can enable the use of plasmonic NHAs in on-chip refractive index sensors. Such sensors can be realized on the cost-effective silicon platform by the integration of a plasmonic NHA and a Ge photodetector, provided that complementary metal–oxide–semiconductor (CMOS)-compatible materials are used for their fabrication. Titanium nitride (TiN) as a biocompatible and CMOS-compatible plasmonic transition metal nitride is well-suited for integration on the silicon platform; however, the comparatively large losses within the material require geometry optimization strategies in order to improve the optical properties of TiN NHAs for sensing. In this work, we investigated different TiN NHA geometries both in experiment and simulation. We extensively characterized square and hexagonal arrays with varying pitches and nanohole diameters and provide a detailed comparison of their optical properties. We also discuss characterization results for surface refractive index changes imposed by depositing a thin Al2O3 layer on top of the NHAs. While we do not observe a clear advantage of hexagonal arrays compared to square arrays for sensing, our results highlight the importance of geometry optimization for TiN NHAs integrated with devices. KW - Plasmonic nanohole array KW - Titanium nitride KW - Hexagonal array KW - Square array KW - Nanohole diameters Y1 - 2025 UR - https://link.springer.com/article/10.1007/s11468-025-02934-4 U6 - https://doi.org/10.1007/s11468-025-02934-4 VL - 20 SP - 8825 EP - 8834 PB - Springer CY - New York, NY ER -