[{"date_updated":"2022-01-06T06:53:11Z","publication_status":"published","author":[{"first_name":"Matthias","last_name":"Fischer","full_name":"Fischer, Matthias","id":"146"},{"first_name":"Hendrik","last_name":"Renken","full_name":"Renken, Hendrik"},{"full_name":"Laroque, Christoph","last_name":"Laroque","first_name":"Christoph"},{"first_name":"Guido","last_name":"Schaumann","full_name":"Schaumann, Guido"},{"full_name":"Dangelmaier, Wilhelm","first_name":"Wilhelm","last_name":"Dangelmaier"}],"publication_identifier":{"isbn":["9781424498666"]},"title":"Automated 3D-motion planning for ramps and stairs in intra-logistics material flow simulations","year":"2010","status":"public","doi":"10.1109/wsc.2010.5678906","user_id":"15415","_id":"17422","language":[{"iso":"eng"}],"abstract":[{"lang":"eng","text":"Commercial software of material flow simulations has the ability to layout the simulated models. Arranged equipment, such as conveyors or machines, includes the need to model and determine motion paths for moving objects like forklifts or automatically guided vehicles, so that the simulation framework is able to navigate all vehicles across those motion paths. After analyzing first scenarios, the user often carries out layout changes in the simulation model, e.g. moving, adding or deleting equipment. However, those changes cause time consuming, additional modeling of the motion paths for the user. Our motion planning algorithm reduces these changes by automatically determining the motion paths for moving objects, depending on an actual model layout without colliding with other objects. The algorithm works on the basis of the virtual scenes 3D-data used for the simulation models visualization. We demonstrate the technique with a multi-floor building example."}],"citation":{"ama":"Fischer M, Renken H, Laroque C, Schaumann G, Dangelmaier W. Automated 3D-motion planning for ramps and stairs in intra-logistics material flow simulations. In: <i>Proceedings of the 2010 Winter Simulation Conference</i>. ; 2010. doi:<a href=\"https://doi.org/10.1109/wsc.2010.5678906\">10.1109/wsc.2010.5678906</a>","bibtex":"@inproceedings{Fischer_Renken_Laroque_Schaumann_Dangelmaier_2010, title={Automated 3D-motion planning for ramps and stairs in intra-logistics material flow simulations}, DOI={<a href=\"https://doi.org/10.1109/wsc.2010.5678906\">10.1109/wsc.2010.5678906</a>}, booktitle={Proceedings of the 2010 Winter Simulation Conference}, author={Fischer, Matthias and Renken, Hendrik and Laroque, Christoph and Schaumann, Guido and Dangelmaier, Wilhelm}, year={2010} }","mla":"Fischer, Matthias, et al. “Automated 3D-Motion Planning for Ramps and Stairs in Intra-Logistics Material Flow Simulations.” <i>Proceedings of the 2010 Winter Simulation Conference</i>, 2010, doi:<a href=\"https://doi.org/10.1109/wsc.2010.5678906\">10.1109/wsc.2010.5678906</a>.","short":"M. Fischer, H. Renken, C. Laroque, G. Schaumann, W. Dangelmaier, in: Proceedings of the 2010 Winter Simulation Conference, 2010.","chicago":"Fischer, Matthias, Hendrik Renken, Christoph Laroque, Guido Schaumann, and Wilhelm Dangelmaier. “Automated 3D-Motion Planning for Ramps and Stairs in Intra-Logistics Material Flow Simulations.” In <i>Proceedings of the 2010 Winter Simulation Conference</i>, 2010. <a href=\"https://doi.org/10.1109/wsc.2010.5678906\">https://doi.org/10.1109/wsc.2010.5678906</a>.","apa":"Fischer, M., Renken, H., Laroque, C., Schaumann, G., &#38; Dangelmaier, W. (2010). Automated 3D-motion planning for ramps and stairs in intra-logistics material flow simulations. In <i>Proceedings of the 2010 Winter Simulation Conference</i>. <a href=\"https://doi.org/10.1109/wsc.2010.5678906\">https://doi.org/10.1109/wsc.2010.5678906</a>","ieee":"M. Fischer, H. Renken, C. Laroque, G. Schaumann, and W. Dangelmaier, “Automated 3D-motion planning for ramps and stairs in intra-logistics material flow simulations,” in <i>Proceedings of the 2010 Winter Simulation Conference</i>, 2010."},"publication":"Proceedings of the 2010 Winter Simulation Conference","department":[{"_id":"63"}],"type":"conference","date_created":"2020-07-27T19:33:16Z"},{"title":"Ultrasonic Transducer for the Hydrothermal Method","year":"2010","author":[{"full_name":"Bornmann, Peter","first_name":"Peter","last_name":"Bornmann"},{"id":"210","full_name":"Hemsel, Tobias","first_name":"Tobias","last_name":"Hemsel"},{"first_name":"Walter","last_name":"Littmann","full_name":"Littmann, Walter"},{"first_name":"Ryo","last_name":"Ageba","full_name":"Ageba, Ryo"},{"full_name":"Kadota, Yoishi","first_name":"Yoishi","last_name":"Kadota"},{"last_name":"Morita","first_name":"Takeshi","full_name":"Morita, Takeshi"}],"publication_identifier":{"issn":["1948-5719"]},"date_updated":"2022-01-06T07:04:19Z","intvolume":"        57","language":[{"iso":"eng"}],"doi":"10.3938/jkps.57.1122","issue":"4","publication":"Journal of Korean Physical Society","abstract":[{"text":"Direct ultrasound irradiation is advantageous to increase the efficiency of the hydrothermal method which can be used for the production of piezoelectric thin films and lead free piezoelectric ceramics. To apply ultrasound directly to the process transducer prototypes were developed regarding the boundary conditions of the hydrothermal method. LiNbO$_{3}$ and PIC 181 were proven as feasible materials for high temperature resistant transducers ($\\geq 200^\\circ C$). Resistance of the transducers horn against the corrosive mineralizer was achieved by using Hastelloy C-22. The efficiency of the ultrasound assisted hydrothermal method depends on the generated sound field. Impedance and sound field measurements have shown that the sound field depends on the filling level and the position and design of the transducer.","lang":"eng"}],"date_created":"2019-05-13T09:37:56Z","keyword":["High-temperature transducer","Hydrothermal method","Lithium-niobate transducer"],"type":"journal_article","department":[{"_id":"151"}],"status":"public","page":"1122","_id":"9744","user_id":"55222","volume":57,"citation":{"short":"P. Bornmann, T. Hemsel, W. Littmann, R. Ageba, Y. Kadota, T. Morita, Journal of Korean Physical Society 57 (2010) 1122.","chicago":"Bornmann, Peter, Tobias Hemsel, Walter Littmann, Ryo Ageba, Yoishi Kadota, and Takeshi Morita. “Ultrasonic Transducer for the Hydrothermal Method.” <i>Journal of Korean Physical Society</i> 57, no. 4 (2010): 1122. <a href=\"https://doi.org/10.3938/jkps.57.1122\">https://doi.org/10.3938/jkps.57.1122</a>.","apa":"Bornmann, P., Hemsel, T., Littmann, W., Ageba, R., Kadota, Y., &#38; Morita, T. (2010). Ultrasonic Transducer for the Hydrothermal Method. <i>Journal of Korean Physical Society</i>, <i>57</i>(4), 1122. <a href=\"https://doi.org/10.3938/jkps.57.1122\">https://doi.org/10.3938/jkps.57.1122</a>","ieee":"P. Bornmann, T. Hemsel, W. Littmann, R. Ageba, Y. Kadota, and T. Morita, “Ultrasonic Transducer for the Hydrothermal Method,” <i>Journal of Korean Physical Society</i>, vol. 57, no. 4, p. 1122, 2010.","ama":"Bornmann P, Hemsel T, Littmann W, Ageba R, Kadota Y, Morita T. Ultrasonic Transducer for the Hydrothermal Method. <i>Journal of Korean Physical Society</i>. 2010;57(4):1122. doi:<a href=\"https://doi.org/10.3938/jkps.57.1122\">10.3938/jkps.57.1122</a>","bibtex":"@article{Bornmann_Hemsel_Littmann_Ageba_Kadota_Morita_2010, title={Ultrasonic Transducer for the Hydrothermal Method}, volume={57}, DOI={<a href=\"https://doi.org/10.3938/jkps.57.1122\">10.3938/jkps.57.1122</a>}, number={4}, journal={Journal of Korean Physical Society}, author={Bornmann, Peter and Hemsel, Tobias and Littmann, Walter and Ageba, Ryo and Kadota, Yoishi and Morita, Takeshi}, year={2010}, pages={1122} }","mla":"Bornmann, Peter, et al. “Ultrasonic Transducer for the Hydrothermal Method.” <i>Journal of Korean Physical Society</i>, vol. 57, no. 4, 2010, p. 1122, doi:<a href=\"https://doi.org/10.3938/jkps.57.1122\">10.3938/jkps.57.1122</a>."},"quality_controlled":"1"},{"file_date_updated":"2018-08-28T12:28:22Z","citation":{"mla":"Zhu, Tongtong, et al. “Characterization of Unintentional Doping in Nonpolar GaN.” <i>Journal of Applied Physics</i>, vol. 107, no. 2, 023503, AIP Publishing, 2010, doi:<a href=\"https://doi.org/10.1063/1.3284944\">10.1063/1.3284944</a>.","ama":"Zhu T, Johnston CF, Häberlen M, Kappers MJ, Oliver RA. Characterization of unintentional doping in nonpolar GaN. <i>Journal of Applied Physics</i>. 2010;107(2). doi:<a href=\"https://doi.org/10.1063/1.3284944\">10.1063/1.3284944</a>","bibtex":"@article{Zhu_Johnston_Häberlen_Kappers_Oliver_2010, title={Characterization of unintentional doping in nonpolar GaN}, volume={107}, DOI={<a href=\"https://doi.org/10.1063/1.3284944\">10.1063/1.3284944</a>}, number={2023503}, journal={Journal of Applied Physics}, publisher={AIP Publishing}, author={Zhu, Tongtong and Johnston, Carol F. and Häberlen, Maik and Kappers, Menno J. and Oliver, Rachel A.}, year={2010} }","apa":"Zhu, T., Johnston, C. F., Häberlen, M., Kappers, M. J., &#38; Oliver, R. A. (2010). Characterization of unintentional doping in nonpolar GaN. <i>Journal of Applied Physics</i>, <i>107</i>(2). <a href=\"https://doi.org/10.1063/1.3284944\">https://doi.org/10.1063/1.3284944</a>","ieee":"T. Zhu, C. F. Johnston, M. Häberlen, M. J. Kappers, and R. A. Oliver, “Characterization of unintentional doping in nonpolar GaN,” <i>Journal of Applied Physics</i>, vol. 107, no. 2, 2010.","chicago":"Zhu, Tongtong, Carol F. Johnston, Maik Häberlen, Menno J. Kappers, and Rachel A. Oliver. “Characterization of Unintentional Doping in Nonpolar GaN.” <i>Journal of Applied Physics</i> 107, no. 2 (2010). <a href=\"https://doi.org/10.1063/1.3284944\">https://doi.org/10.1063/1.3284944</a>.","short":"T. Zhu, C.F. Johnston, M. Häberlen, M.J. Kappers, R.A. Oliver, Journal of Applied Physics 107 (2010)."},"ddc":["530"],"user_id":"55706","volume":107,"publisher":"AIP Publishing","_id":"4202","has_accepted_license":"1","status":"public","type":"journal_article","department":[{"_id":"15"}],"file":[{"content_type":"application/pdf","success":1,"file_id":"4203","access_level":"closed","file_size":688753,"file_name":"Characterization of unintentional doping in nonpolar GaN.pdf","date_updated":"2018-08-28T12:28:22Z","relation":"main_file","date_created":"2018-08-28T12:28:22Z","creator":"hclaudia"}],"date_created":"2018-08-28T12:27:34Z","abstract":[{"lang":"eng","text":"Unintentional doping in nonpolar a-plane \u0001112¯0\u0002 gallium nitride \u0001GaN\u0002 grown on r-plane \u000111¯02\u0002\r\nsapphire using a three-dimensional \u00013D\u0002–two-dimensional \u00012D\u0002 growth method has been\r\ncharacterized. For both 2D only and 3D–2D growth, the presence of an unintentionally doped region\r\nadjacent to the GaN/sapphire interface is observed by scanning capacitance microscopy \u0001SCM\u0002. The\r\naverage width of this unintentionally doped layer is found to increase with increasing 3D growth\r\ntime. By using an intentionally doped GaN:Si staircase structure for calibration, it is shown that the\r\nunintentionally doped region has an average carrier concentration of \u00012.5\u00010.3\u0002\u00021018 cm−3. SCM\r\nalso reveals the presence of unintentionally doped features extending at 60° from the GaN/sapphire\r\ninterface. The observation of decreasing carrier concentration with distance from the GaN/sapphire\r\ninterface along these features may suggest that the unintentional doping arises from oxygen\r\ndiffusion from the sapphire substrate. Low temperature cathodoluminescence spectra reveal\r\nemission peaks at 3.41 and 3.30 eV, which are believed to originate from basal plane stacking faults\r\n\u0001BSFs\u0002 and prismatic stacking faults \u0001PSFs\u0002, respectively. It is shown that the inclined features\r\nextending from the GaN/sapphire interface exhibit both enhanced BSF and PSF emission. We\r\nsuggest that enhanced unintentional doping occurs in regions around PSFs. Where BSFs intersect\r\nthis doped material their emission is also enhanced due to reduced nonradiative recombination.\r\nTransmission electron microscopy confirms the presence of PSFs extending through the film at 60°\r\nfrom the GaN/sapphire interface."}],"extern":"1","publication":"Journal of Applied Physics","issue":"2","doi":"10.1063/1.3284944","article_number":"023503","language":[{"iso":"eng"}],"date_updated":"2022-01-06T07:00:34Z","publication_status":"published","intvolume":"       107","article_type":"original","title":"Characterization of unintentional doping in nonpolar GaN","year":"2010","publication_identifier":{"issn":["0021-8979","1089-7550"]},"author":[{"last_name":"Zhu","first_name":"Tongtong","full_name":"Zhu, Tongtong"},{"full_name":"Johnston, Carol F.","first_name":"Carol F.","last_name":"Johnston"},{"last_name":"Häberlen","first_name":"Maik","full_name":"Häberlen, Maik"},{"full_name":"Kappers, Menno J.","first_name":"Menno J.","last_name":"Kappers"},{"full_name":"Oliver, Rachel A.","first_name":"Rachel A.","last_name":"Oliver"}]},{"publication":"physica status solidi (b)","issue":"7","abstract":[{"lang":"eng","text":"In this paper we demonstrate a strain-driven GaN interlayer method to reduce dislocation densities in GaN grown on (111) oriented silicon by metal organic vapour phase epitaxy (MOVPE). In order to achieve crack-free GaN layers of\r\nreasonable thicknesses and dislocation densities it is crucial to integrate both dislocation reduction and strain management layers. In contrast to techniques like FACELO or nanoELO we show the in situ formation of GaN islands directly on the AlN nucleation layer without the need to deposit a SiO2 or SiNx mask. A graded AlGaN layer for strain management can be grown on top of this dislocation reducing 3D GaN inter-layer in order to achieve crack-free GaN layers grown on top of the AlGaN strain management layer. Furthermore, an additional SiNx layer for subsequent dislocation reduction can also be incorporated into the structure and is shown to efficiently reduce the dislocation density down to the low 10^9 cm^2. The structural properties of the 3D GaN island buffer layer and overgrown\r\nsamples are studied by means of SEM, cross-sectional, and plan view TEM. Cathodoluminiscence in an SEM is employed to correlate the dislocation microstructure as observed by plan view TEM with luminescent properties."}],"date_created":"2018-08-28T12:42:58Z","file":[{"content_type":"application/pdf","success":1,"file_id":"4211","file_size":911931,"access_level":"closed","file_name":"Dislocation reduction in GaN grown on Si(111) using a strain-driven 3D GaN interlayer.pdf","date_updated":"2018-08-28T12:43:31Z","relation":"main_file","date_created":"2018-08-28T12:43:31Z","creator":"hclaudia"}],"department":[{"_id":"15"}],"type":"journal_article","author":[{"full_name":"Häberlen, Maik","last_name":"Häberlen","first_name":"Maik"},{"last_name":"Zhu","first_name":"Dandan","full_name":"Zhu, Dandan"},{"first_name":"Clifford","last_name":"McAleese","full_name":"McAleese, Clifford"},{"first_name":"Tongtong","last_name":"Zhu","full_name":"Zhu, Tongtong"},{"full_name":"Kappers, Menno J.","last_name":"Kappers","first_name":"Menno J."},{"last_name":"Humphreys","first_name":"Colin J.","full_name":"Humphreys, Colin J."}],"publication_identifier":{"issn":["0370-1972","1521-3951"]},"year":"2010","title":"Dislocation reduction in GaN grown on Si(111) using a strain-driven 3D GaN interlayer","intvolume":"       247","article_type":"original","date_updated":"2022-01-06T07:00:36Z","publication_status":"published","language":[{"iso":"eng"}],"doi":"10.1002/pssb.200983537","citation":{"bibtex":"@article{Häberlen_Zhu_McAleese_Zhu_Kappers_Humphreys_2010, title={Dislocation reduction in GaN grown on Si(111) using a strain-driven 3D GaN interlayer}, volume={247}, DOI={<a href=\"https://doi.org/10.1002/pssb.200983537\">10.1002/pssb.200983537</a>}, number={7}, journal={physica status solidi (b)}, publisher={Wiley}, author={Häberlen, Maik and Zhu, Dandan and McAleese, Clifford and Zhu, Tongtong and Kappers, Menno J. and Humphreys, Colin J.}, year={2010}, pages={1753–1756} }","ama":"Häberlen M, Zhu D, McAleese C, Zhu T, Kappers MJ, Humphreys CJ. Dislocation reduction in GaN grown on Si(111) using a strain-driven 3D GaN interlayer. <i>physica status solidi (b)</i>. 2010;247(7):1753-1756. doi:<a href=\"https://doi.org/10.1002/pssb.200983537\">10.1002/pssb.200983537</a>","mla":"Häberlen, Maik, et al. “Dislocation Reduction in GaN Grown on Si(111) Using a Strain-Driven 3D GaN Interlayer.” <i>Physica Status Solidi (B)</i>, vol. 247, no. 7, Wiley, 2010, pp. 1753–56, doi:<a href=\"https://doi.org/10.1002/pssb.200983537\">10.1002/pssb.200983537</a>.","chicago":"Häberlen, Maik, Dandan Zhu, Clifford McAleese, Tongtong Zhu, Menno J. Kappers, and Colin J. Humphreys. “Dislocation Reduction in GaN Grown on Si(111) Using a Strain-Driven 3D GaN Interlayer.” <i>Physica Status Solidi (B)</i> 247, no. 7 (2010): 1753–56. <a href=\"https://doi.org/10.1002/pssb.200983537\">https://doi.org/10.1002/pssb.200983537</a>.","short":"M. Häberlen, D. Zhu, C. McAleese, T. Zhu, M.J. Kappers, C.J. Humphreys, Physica Status Solidi (B) 247 (2010) 1753–1756.","ieee":"M. Häberlen, D. Zhu, C. McAleese, T. Zhu, M. J. Kappers, and C. J. Humphreys, “Dislocation reduction in GaN grown on Si(111) using a strain-driven 3D GaN interlayer,” <i>physica status solidi (b)</i>, vol. 247, no. 7, pp. 1753–1756, 2010.","apa":"Häberlen, M., Zhu, D., McAleese, C., Zhu, T., Kappers, M. J., &#38; Humphreys, C. J. (2010). Dislocation reduction in GaN grown on Si(111) using a strain-driven 3D GaN interlayer. <i>Physica Status Solidi (B)</i>, <i>247</i>(7), 1753–1756. <a href=\"https://doi.org/10.1002/pssb.200983537\">https://doi.org/10.1002/pssb.200983537</a>"},"file_date_updated":"2018-08-28T12:43:31Z","status":"public","has_accepted_license":"1","_id":"4210","publisher":"Wiley","page":"1753-1756","volume":247,"ddc":["530"],"user_id":"55706"},{"volume":52,"user_id":"61579","ddc":["000"],"publisher":"Springer","_id":"5644","page":"225-237","has_accepted_license":"1","status":"public","oa":"1","citation":{"apa":"Schryen, G. (2010). Preserving knowledge on IS business value: what literature reviews have done. <i>Business \\&#38; Information Systems Engineering (BISE)</i>, <i>52</i>(4), 225–237.","ieee":"G. Schryen, “Preserving knowledge on IS business value: what literature reviews have done,” <i>Business \\&#38; Information Systems Engineering (BISE)</i>, vol. 52, no. 4, pp. 225–237, 2010.","short":"G. Schryen, Business \\&#38; Information Systems Engineering (BISE) 52 (2010) 225–237.","chicago":"Schryen, Guido. “Preserving Knowledge on IS Business Value: What Literature Reviews Have Done.” <i>Business \\&#38; Information Systems Engineering (BISE)</i> 52, no. 4 (2010): 225–37.","mla":"Schryen, Guido. “Preserving Knowledge on IS Business Value: What Literature Reviews Have Done.” <i>Business \\&#38; Information Systems Engineering (BISE)</i>, vol. 52, no. 4, Springer, 2010, pp. 225–37.","ama":"Schryen G. Preserving knowledge on IS business value: what literature reviews have done. <i>Business \\&#38; Information Systems Engineering (BISE)</i>. 2010;52(4):225-237.","bibtex":"@article{Schryen_2010, title={Preserving knowledge on IS business value: what literature reviews have done}, volume={52}, number={4}, journal={Business \\&#38; Information Systems Engineering (BISE)}, publisher={Springer}, author={Schryen, Guido}, year={2010}, pages={225–237} }"},"file_date_updated":"2018-12-13T15:17:12Z","language":[{"iso":"eng"}],"intvolume":"        52","date_updated":"2022-01-06T07:02:19Z","author":[{"id":"72850","last_name":"Schryen","first_name":"Guido","full_name":"Schryen, Guido"}],"title":"Preserving knowledge on IS business value: what literature reviews have done","year":"2010","department":[{"_id":"277"}],"keyword":["Business value","Information systems","Literature review","Meta review"],"type":"journal_article","date_created":"2018-11-14T14:38:02Z","file":[{"date_created":"2018-12-11T15:19:37Z","creator":"hsiemes","file_id":"6187","content_type":"application/pdf","relation":"main_file","date_updated":"2018-12-13T15:17:12Z","file_name":"BISE-PreservingknowledgeonISbusinessvalue-Manuscript-1.pdf","file_size":525443,"access_level":"open_access"}],"extern":"1","abstract":[{"text":"The economic relevance of information systems has been studied for many years and has attracted an abundance of research papers. However, the ?productivity paradoxon? of the 90s, Carr?s widely recognized paper ?IT doesn?t matter?, and several studies that do not find a positive correlation between IS investments and economic performance reveal long-lasting difficulties for IS researchers to explain ?IS business value?. Business executives and researchers also continue to question the value of IS investments. This raises the question of whether literature reviews have tapped their potential to address the concerns by covering key research areas of IS business value and preserving their key findings. In order to address this question, this paper identifies and describes 12 key research areas, and synthesizes what literature reviews published in pertinent academic outlets have done to preserve knowledge. The analysis of 22 literature reviews shows that some crucial areas have not been (sufficiently) covered. They provide fertile areas for future literature reviews. As this work is based on the results of more than 200 research papers, it is capable of drawing a comprehensive picture of the current state-of-the-art in IS business value research.","lang":"eng"}],"publication":"Business \\& Information Systems Engineering (BISE)","issue":"4"},{"citation":{"ieee":"G. Schryen, “Ökonomischer Wert von Informationssystemen - Beitrag von Literatur-Reviews zum Wissenserhalt ( = Preserving Knowledge on IS Business Value. What Literature Reviews Have Done),” <i>Wirtschaftsinformatik</i>, vol. 52, no. 4, pp. 225–237, 2010.","apa":"Schryen, G. (2010). Ökonomischer Wert von Informationssystemen - Beitrag von Literatur-Reviews zum Wissenserhalt ( = Preserving Knowledge on IS Business Value. What Literature Reviews Have Done). <i>Wirtschaftsinformatik</i>, <i>52</i>(4), 225–237.","chicago":"Schryen, Guido. “Ökonomischer Wert von Informationssystemen - Beitrag von Literatur-Reviews Zum Wissenserhalt ( = Preserving Knowledge on IS Business Value. What Literature Reviews Have Done).” <i>Wirtschaftsinformatik</i> 52, no. 4 (2010): 225–37.","short":"G. Schryen, Wirtschaftsinformatik 52 (2010) 225–237.","mla":"Schryen, Guido. “Ökonomischer Wert von Informationssystemen - Beitrag von Literatur-Reviews Zum Wissenserhalt ( = Preserving Knowledge on IS Business Value. What Literature Reviews Have Done).” <i>Wirtschaftsinformatik</i>, vol. 52, no. 4, Gabler; Springer, 2010, pp. 225–37.","bibtex":"@article{Schryen_2010, title={Ökonomischer Wert von Informationssystemen - Beitrag von Literatur-Reviews zum Wissenserhalt ( = Preserving Knowledge on IS Business Value. What Literature Reviews Have Done)}, volume={52}, number={4}, journal={Wirtschaftsinformatik}, publisher={Gabler; Springer}, author={Schryen, Guido}, year={2010}, pages={225–237} }","ama":"Schryen G. Ökonomischer Wert von Informationssystemen - Beitrag von Literatur-Reviews zum Wissenserhalt ( = Preserving Knowledge on IS Business Value. What Literature Reviews Have Done). <i>Wirtschaftsinformatik</i>. 2010;52(4):225-237."},"file_date_updated":"2018-12-13T15:19:50Z","oa":"1","has_accepted_license":"1","status":"public","volume":52,"ddc":["000"],"user_id":"61579","_id":"5645","publisher":"Gabler; Springer","page":"225-237","abstract":[{"text":"The economic relevance of information systems has been studied for many years and has attracted an abundance of research papers. However, the ?productivity paradoxon? of the 1990s, Carr?s widely recognized paper ?IT doesn?t matter?, and several studies that do not find a positive correlation between IS investments and economic performance reveal long-lasting difficulties for IS researchers to explain ?IS business value?. Business executives and researchers also continue to question the value of IS investments. This raises the question of whether literature reviews have tapped their potential to address the concerns by covering key research areas of IS business value and preserving their key findings. In order to address this question, this paper identifies and describes 12 key research areas, and synthesizes what literature reviews published in pertinent academic outlets have done to preserve knowledge. The analysis of 22 literature reviews shows that some crucial areas have not been (sufficiently) covered. They provide fertile areas for future literature reviews. As this work is based on the results of more than 200 research papers, it is capable of drawing a comprehensive picture of the current state-of-the-art in IS business value research.","lang":"eng"}],"extern":"1","issue":"4","publication":"Wirtschaftsinformatik","department":[{"_id":"277"}],"type":"journal_article","date_created":"2018-11-14T14:38:45Z","file":[{"file_id":"6189","content_type":"application/pdf","file_name":"Schryen2010_Article_ÖkonomischerWertVonInformation.pdf","file_size":850718,"access_level":"open_access","relation":"main_file","date_updated":"2018-12-13T15:19:50Z","date_created":"2018-12-11T15:21:36Z","creator":"hsiemes"}],"intvolume":"        52","date_updated":"2022-01-06T07:02:19Z","author":[{"first_name":"Guido","last_name":"Schryen","full_name":"Schryen, Guido","id":"72850"}],"year":"2010","title":"Ökonomischer Wert von Informationssystemen - Beitrag von Literatur-Reviews zum Wissenserhalt ( = Preserving Knowledge on IS Business Value. What Literature Reviews Have Done)","language":[{"iso":"eng"}]},{"user_id":"15415","doi":"10.1007/978-3-642-17289-2_60","_id":"16505","language":[{"iso":"eng"}],"publication_status":"published","date_updated":"2022-01-06T06:52:52Z","title":"Preprocessed Global Visibility for Real-Time Rendering on Low-End Hardware","year":"2010","status":"public","publication_identifier":{"isbn":["9783642172885","9783642172892"],"issn":["0302-9743","1611-3349"]},"author":[{"first_name":"Benjamin","last_name":"Eikel","full_name":"Eikel, Benjamin"},{"full_name":"Jähn, Claudius","first_name":"Claudius","last_name":"Jähn"},{"id":"146","first_name":"Matthias","last_name":"Fischer","full_name":"Fischer, Matthias"}],"type":"book_chapter","department":[{"_id":"63"}],"date_created":"2020-04-14T13:06:51Z","place":"Berlin, Heidelberg","abstract":[{"text":"We present an approach for real-time rendering of complex 3D scenes consisting of millions of polygons on limited graphics hardware. In a preprocessing step, powerful hardware is used to gain fine granular global visibility information of a scene using an adaptive sampling algorithm. Additively the visual influence of each object on the eventual rendered image is estimated. This influence is used to select the most important objects to display in our approximative culling algorithm. After the visibility data is compressed to meet the storage capabilities of small devices, we achieve an interactive walkthrough of the Power Plant scene on a standard netbook with an integrated graphics chipset.","lang":"eng"}],"publication":"Advances in Visual Computing","citation":{"apa":"Eikel, B., Jähn, C., &#38; Fischer, M. (2010). Preprocessed Global Visibility for Real-Time Rendering on Low-End Hardware. In <i>Advances in Visual Computing</i>. Berlin, Heidelberg. <a href=\"https://doi.org/10.1007/978-3-642-17289-2_60\">https://doi.org/10.1007/978-3-642-17289-2_60</a>","mla":"Eikel, Benjamin, et al. “Preprocessed Global Visibility for Real-Time Rendering on Low-End Hardware.” <i>Advances in Visual Computing</i>, 2010, doi:<a href=\"https://doi.org/10.1007/978-3-642-17289-2_60\">10.1007/978-3-642-17289-2_60</a>.","ieee":"B. Eikel, C. Jähn, and M. Fischer, “Preprocessed Global Visibility for Real-Time Rendering on Low-End Hardware,” in <i>Advances in Visual Computing</i>, Berlin, Heidelberg, 2010.","chicago":"Eikel, Benjamin, Claudius Jähn, and Matthias Fischer. “Preprocessed Global Visibility for Real-Time Rendering on Low-End Hardware.” In <i>Advances in Visual Computing</i>. Berlin, Heidelberg, 2010. <a href=\"https://doi.org/10.1007/978-3-642-17289-2_60\">https://doi.org/10.1007/978-3-642-17289-2_60</a>.","short":"B. Eikel, C. Jähn, M. Fischer, in: Advances in Visual Computing, Berlin, Heidelberg, 2010.","ama":"Eikel B, Jähn C, Fischer M. Preprocessed Global Visibility for Real-Time Rendering on Low-End Hardware. In: <i>Advances in Visual Computing</i>. Berlin, Heidelberg; 2010. doi:<a href=\"https://doi.org/10.1007/978-3-642-17289-2_60\">10.1007/978-3-642-17289-2_60</a>","bibtex":"@inbook{Eikel_Jähn_Fischer_2010, place={Berlin, Heidelberg}, title={Preprocessed Global Visibility for Real-Time Rendering on Low-End Hardware}, DOI={<a href=\"https://doi.org/10.1007/978-3-642-17289-2_60\">10.1007/978-3-642-17289-2_60</a>}, booktitle={Advances in Visual Computing}, author={Eikel, Benjamin and Jähn, Claudius and Fischer, Matthias}, year={2010} }"}},{"date_updated":"2022-04-25T08:04:26Z","author":[{"first_name":"A.","last_name":"Bagsik","full_name":"Bagsik, A."},{"id":"20530","last_name":"Schöppner","first_name":"Volker","full_name":"Schöppner, Volker"},{"last_name":"Klemp","first_name":"E.","full_name":"Klemp, E."}],"publication_identifier":{"isbn":["978-3-868-29282-4"]},"title":"FDM Part Quality Manufactured with ULTEM 9085","year":"2010","status":"public","user_id":"70729","doi":"https://docplayer.net/255735-Fdm-part-quality-manufactured-with-ultem-9085.html","language":[{"iso":"eng"}],"_id":"22050","quality_controlled":"1","abstract":[{"lang":"eng","text":"Generative production techniques have the advantage of manufacturing parts via an additive process without needing a forming tool. One of these additive manufacturing technologies is “Fused Deposition Modeling” (FDM). From a 3D-CAD data set, components and assemblies are manufactured out of thermoplastic material in only a few working steps. Native software automatically slices the data, calculates the support structures, and creates toolpaths. The parts then are built up layer by layer by means of an additive process. An extrusion head deposits the molten thermoplastic filament to create each layer. This technology began as a process for creating prototype parts; recently it has found new utility in the production of manufacturing tools and as a manufacturing process for end-use parts. In order to be used as a part for serial production, the components must possess the required mechanical properties. To this end, not only is the chosen material relevant, but a correct process control is also necessary. An interesting material for the aircraft and automotive industry is the material PEI with the trade name Ultem*9085. This material should typically be used on FDM-machines for the manufacturing of end products. The aim of the research is to determine the present mechanical data based on the process control, as well as reproducibility from job to job. In this work the influence of the orientation and the structure of the manufactured parts based on the mechanical data are analyzed. Sample parts are generated with the given parameters of the native software based upon the CAD data. First, specimens were analyzed concerning their geometry and configuration. The dimensions and weight were measured. The mechanical tests conducted were the tensile and compression tests."}],"citation":{"chicago":"Bagsik, A., Volker Schöppner, and E. Klemp. “FDM Part Quality Manufactured with ULTEM 9085.” In <i>Proceedings of International Conference Polymeric Materials</i>, 2010. <a href=\"https://docplayer.net/255735-Fdm-part-quality-manufactured-with-ultem-9085.html\">https://docplayer.net/255735-Fdm-part-quality-manufactured-with-ultem-9085.html</a>.","short":"A. Bagsik, V. Schöppner, E. Klemp, in: Proceedings of International Conference Polymeric Materials, 2010.","apa":"Bagsik, A., Schöppner, V., &#38; Klemp, E. (2010). FDM Part Quality Manufactured with ULTEM 9085. <i>Proceedings of International Conference Polymeric Materials</i>. <a href=\"https://docplayer.net/255735-Fdm-part-quality-manufactured-with-ultem-9085.html\">https://docplayer.net/255735-Fdm-part-quality-manufactured-with-ultem-9085.html</a>","ieee":"A. Bagsik, V. Schöppner, and E. Klemp, “FDM Part Quality Manufactured with ULTEM 9085,” 2010, doi: <a href=\"https://docplayer.net/255735-Fdm-part-quality-manufactured-with-ultem-9085.html\">https://docplayer.net/255735-Fdm-part-quality-manufactured-with-ultem-9085.html</a>.","ama":"Bagsik A, Schöppner V, Klemp E. FDM Part Quality Manufactured with ULTEM 9085. In: <i>Proceedings of International Conference Polymeric Materials</i>. ; 2010. doi:<a href=\"https://docplayer.net/255735-Fdm-part-quality-manufactured-with-ultem-9085.html\">https://docplayer.net/255735-Fdm-part-quality-manufactured-with-ultem-9085.html</a>","bibtex":"@inproceedings{Bagsik_Schöppner_Klemp_2010, title={FDM Part Quality Manufactured with ULTEM 9085}, DOI={<a href=\"https://docplayer.net/255735-Fdm-part-quality-manufactured-with-ultem-9085.html\">https://docplayer.net/255735-Fdm-part-quality-manufactured-with-ultem-9085.html</a>}, booktitle={Proceedings of International Conference Polymeric Materials}, author={Bagsik, A. and Schöppner, Volker and Klemp, E.}, year={2010} }","mla":"Bagsik, A., et al. “FDM Part Quality Manufactured with ULTEM 9085.” <i>Proceedings of International Conference Polymeric Materials</i>, 2010, doi:<a href=\"https://docplayer.net/255735-Fdm-part-quality-manufactured-with-ultem-9085.html\">https://docplayer.net/255735-Fdm-part-quality-manufactured-with-ultem-9085.html</a>."},"publication":"Proceedings of International Conference Polymeric Materials","department":[{"_id":"219"},{"_id":"624"},{"_id":"367"},{"_id":"9"}],"type":"conference","date_created":"2021-05-07T13:23:34Z"},{"user_id":"459","editor":[{"full_name":"Müller, Christine","first_name":"Christine","last_name":"Müller"},{"full_name":"Schulz, Franziska","last_name":"Schulz","first_name":"Franziska"},{"full_name":"Thien, Ulrich","last_name":"Thien","first_name":"Ulrich"}],"page":"247 - 250","_id":"36036","publisher":"Lit-Verlag","language":[{"iso":"ger"}],"publication_status":"published","date_updated":"2023-01-11T11:25:57Z","year":"2010","status":"public","title":"Überschuldung - Bildungsbezogene Perspektive","publication_identifier":{"isbn":["9783643105103"]},"author":[{"id":"459","full_name":"Schlegel-Matthies, Kirsten","first_name":"Kirsten","last_name":"Schlegel-Matthies"}],"type":"book_chapter","department":[{"_id":"35"},{"_id":"17"},{"_id":"22"},{"_id":"396"}],"date_created":"2023-01-11T11:13:01Z","place":"Münster, Berlin","publication":"Auf dem Weg zum Jugendintegrationskonzept. Grundlagen und Herausforderungen angesichts veränderter Lebenslagen junger Menschen","citation":{"mla":"Schlegel-Matthies, Kirsten. “Überschuldung - Bildungsbezogene Perspektive.” <i>Auf dem Weg zum Jugendintegrationskonzept. Grundlagen und Herausforderungen angesichts veränderter Lebenslagen junger Menschen</i>, edited by Christine Müller et al., Lit-Verlag, 2010, pp. 247–50.","bibtex":"@inbook{Schlegel-Matthies_2010, place={Münster, Berlin}, title={Überschuldung - Bildungsbezogene Perspektive}, booktitle={Auf dem Weg zum Jugendintegrationskonzept. Grundlagen und Herausforderungen angesichts veränderter Lebenslagen junger Menschen}, publisher={Lit-Verlag}, author={Schlegel-Matthies, Kirsten}, editor={Müller, Christine and Schulz, Franziska and Thien, Ulrich}, year={2010}, pages={247–250} }","ama":"Schlegel-Matthies K. Überschuldung - Bildungsbezogene Perspektive. In: Müller C, Schulz F, Thien U, eds. <i>Auf dem Weg zum Jugendintegrationskonzept. Grundlagen und Herausforderungen angesichts veränderter Lebenslagen junger Menschen</i>. Lit-Verlag; 2010:247-250.","ieee":"K. Schlegel-Matthies, “Überschuldung - Bildungsbezogene Perspektive,” in <i>Auf dem Weg zum Jugendintegrationskonzept. Grundlagen und Herausforderungen angesichts veränderter Lebenslagen junger Menschen</i>, C. Müller, F. Schulz, and U. Thien, Eds. Münster, Berlin: Lit-Verlag, 2010, pp. 247–250.","apa":"Schlegel-Matthies, K. (2010). Überschuldung - Bildungsbezogene Perspektive. In C. Müller, F. Schulz, &#38; U. Thien (Eds.), <i>Auf dem Weg zum Jugendintegrationskonzept. Grundlagen und Herausforderungen angesichts veränderter Lebenslagen junger Menschen</i> (pp. 247–250). Lit-Verlag.","short":"K. Schlegel-Matthies, in: C. Müller, F. Schulz, U. Thien (Eds.), Auf dem Weg zum Jugendintegrationskonzept. Grundlagen und Herausforderungen angesichts veränderter Lebenslagen junger Menschen, Lit-Verlag, Münster, Berlin, 2010, pp. 247–250.","chicago":"Schlegel-Matthies, Kirsten. “Überschuldung - Bildungsbezogene Perspektive.” In <i>Auf dem Weg zum Jugendintegrationskonzept. Grundlagen und Herausforderungen angesichts veränderter Lebenslagen junger Menschen</i>, edited by Christine Müller, Franziska Schulz, and Ulrich Thien, 247–50. Münster, Berlin: Lit-Verlag, 2010."}},{"date_updated":"2024-06-30T13:57:07Z","intvolume":"        25","year":"2010","title":"Functional Characterization of a Partial Loss-of-Function Mutation of the Epithelial Sodium Channel (ENaC) Associated with Atypical Cystic Fibrosis","status":"public","author":[{"first_name":"Regina","last_name":"Huber","full_name":"Huber, Regina"},{"full_name":"Krueger, Bettina","orcid":"0000-0001-5351-1785","last_name":"Krueger","first_name":"Bettina","id":"49428"},{"full_name":"Diakov, Alexei","first_name":"Alexei","last_name":"Diakov"},{"full_name":"Korbmacher, Judit","first_name":"Judit","last_name":"Korbmacher"},{"full_name":"Haerteis, Silke","first_name":"Silke","last_name":"Haerteis"},{"last_name":"Einsiedel","first_name":"Jürgen","full_name":"Einsiedel, Jürgen"},{"full_name":"Gmeiner, Peter","first_name":"Peter","last_name":"Gmeiner"},{"first_name":"Abul","last_name":"Azad","full_name":"Azad, Abul"},{"full_name":"Cuppens, Harry","last_name":"Cuppens","first_name":"Harry"},{"full_name":"Cassiman, Jean-Jaques","last_name":"Cassiman","first_name":"Jean-Jaques"},{"full_name":"Korbmacher, Christoph","first_name":"Christoph","last_name":"Korbmacher"},{"last_name":"Rauh","first_name":"Robert","full_name":"Rauh, Robert"}],"user_id":"49428","doi":"10.1159/000272059","volume":25,"page":"145–158","publisher":"S. Karger AG","_id":"54942","language":[{"iso":"eng"}],"abstract":[{"lang":"eng","text":"Loss-of-function mutations of the epithelial sodium channel (ENaC) may contribute to pulmonary symptoms resembling those of patients with atypical cystic fibrosis (CF). Recently, we identified a loss-of-function mutation in the alpha-subunit of ENaC (alphaF61L) in an atypical CF patient without mutations in CFTR. To investigate the functional effect of this mutation, we expressed human wild-type alpha beta gamma-ENaC or mutant alpha(F61L) beta gamma-ENaC in Xenopus laevis oocytes. The alphaF61L mutation reduced the ENaC mediated whole-cell currents by approximately 90%. In contrast, the mutation decreased channel surface expression only by approximately 40% and did not alter the single-channel conductance. These findings indicate that the major effect of the mutation is a reduction of the average channel open probability (P(o)). This was confirmed by experiments using the betaS520C mutant ENaC which can be converted to a channel with a P(o) of nearly one, and by experiments using chymotrypsin to proteolytically activate the channel. These experiments revealed that the mutation reduced the average P(o) of ENaC by approximately 75%. Na(+) self inhibition of the mutant channel was significantly enhanced, but the observed effect was too small to account for the large reduction in average channel P(o). The ENaC-activator S3969 partially rescued the loss-of-function phenotype of the alphaF61L mutation. We conclude that the alphaF61L mutation may contribute to respiratory symptoms in atypical CF patients."}],"issue":"001","publication":"Cellular Physiology and Biochemistry","citation":{"short":"R. Huber, B. Krueger, A. Diakov, J. Korbmacher, S. Haerteis, J. Einsiedel, P. Gmeiner, A. Azad, H. Cuppens, J.-J. Cassiman, C. Korbmacher, R. Rauh, Cellular Physiology and Biochemistry 25 (2010) 145–158.","chicago":"Huber, Regina, Bettina Krueger, Alexei Diakov, Judit Korbmacher, Silke Haerteis, Jürgen Einsiedel, Peter Gmeiner, et al. “Functional Characterization of a Partial Loss-of-Function Mutation of the Epithelial Sodium Channel (ENaC) Associated with Atypical Cystic Fibrosis.” <i>Cellular Physiology and Biochemistry</i> 25, no. 001 (2010): 145–158. <a href=\"https://doi.org/10.1159/000272059\">https://doi.org/10.1159/000272059</a>.","ieee":"R. Huber <i>et al.</i>, “Functional Characterization of a Partial Loss-of-Function Mutation of the Epithelial Sodium Channel (ENaC) Associated with Atypical Cystic Fibrosis,” <i>Cellular Physiology and Biochemistry</i>, vol. 25, no. 001, pp. 145–158, 2010, doi: <a href=\"https://doi.org/10.1159/000272059\">10.1159/000272059</a>.","apa":"Huber, R., Krueger, B., Diakov, A., Korbmacher, J., Haerteis, S., Einsiedel, J., Gmeiner, P., Azad, A., Cuppens, H., Cassiman, J.-J., Korbmacher, C., &#38; Rauh, R. (2010). Functional Characterization of a Partial Loss-of-Function Mutation of the Epithelial Sodium Channel (ENaC) Associated with Atypical Cystic Fibrosis. <i>Cellular Physiology and Biochemistry</i>, <i>25</i>(001), 145–158. <a href=\"https://doi.org/10.1159/000272059\">https://doi.org/10.1159/000272059</a>","bibtex":"@article{Huber_Krueger_Diakov_Korbmacher_Haerteis_Einsiedel_Gmeiner_Azad_Cuppens_Cassiman_et al._2010, title={Functional Characterization of a Partial Loss-of-Function Mutation of the Epithelial Sodium Channel (ENaC) Associated with Atypical Cystic Fibrosis}, volume={25}, DOI={<a href=\"https://doi.org/10.1159/000272059\">10.1159/000272059</a>}, number={001}, journal={Cellular Physiology and Biochemistry}, publisher={S. Karger AG}, author={Huber, Regina and Krueger, Bettina and Diakov, Alexei and Korbmacher, Judit and Haerteis, Silke and Einsiedel, Jürgen and Gmeiner, Peter and Azad, Abul and Cuppens, Harry and Cassiman, Jean-Jaques and et al.}, year={2010}, pages={145–158} }","ama":"Huber R, Krueger B, Diakov A, et al. Functional Characterization of a Partial Loss-of-Function Mutation of the Epithelial Sodium Channel (ENaC) Associated with Atypical Cystic Fibrosis. <i>Cellular Physiology and Biochemistry</i>. 2010;25(001):145–158. doi:<a href=\"https://doi.org/10.1159/000272059\">10.1159/000272059</a>","mla":"Huber, Regina, et al. “Functional Characterization of a Partial Loss-of-Function Mutation of the Epithelial Sodium Channel (ENaC) Associated with Atypical Cystic Fibrosis.” <i>Cellular Physiology and Biochemistry</i>, vol. 25, no. 001, S. Karger AG, 2010, pp. 145–158, doi:<a href=\"https://doi.org/10.1159/000272059\">10.1159/000272059</a>."},"type":"journal_article","department":[{"_id":"35"},{"_id":"22"}],"date_created":"2024-06-30T13:56:57Z"},{"publication":"Haushalt & Bildung","issue":"3","citation":{"ieee":"R. Bigga and K. Schlegel-Matthies, “Verbraucherbildung und Konsum – Was wissen Studierende? – Überlegungen zur Hochschuldidaktik,” <i>Haushalt &#38; Bildung</i>, vol. 87, no. 3, pp. 48–57, 2010.","mla":"Bigga, Regine, and Kirsten Schlegel-Matthies. “Verbraucherbildung und Konsum – Was wissen Studierende? – Überlegungen zur Hochschuldidaktik.” <i>Haushalt &#38; Bildung</i>, vol. 87, no. 3, 2010, pp. 48–57.","apa":"Bigga, R., &#38; Schlegel-Matthies, K. (2010). Verbraucherbildung und Konsum – Was wissen Studierende? – Überlegungen zur Hochschuldidaktik. <i>Haushalt &#38; Bildung</i>, <i>87</i>(3), 48–57.","bibtex":"@article{Bigga_Schlegel-Matthies_2010, title={Verbraucherbildung und Konsum – Was wissen Studierende? – Überlegungen zur Hochschuldidaktik}, volume={87}, number={3}, journal={Haushalt &#38; Bildung}, author={Bigga, Regine and Schlegel-Matthies, Kirsten}, year={2010}, pages={48–57} }","chicago":"Bigga, Regine, and Kirsten Schlegel-Matthies. “Verbraucherbildung und Konsum – Was wissen Studierende? – Überlegungen zur Hochschuldidaktik.” <i>Haushalt &#38; Bildung</i> 87, no. 3 (2010): 48–57.","short":"R. Bigga, K. Schlegel-Matthies, Haushalt &#38; Bildung 87 (2010) 48–57.","ama":"Bigga R, Schlegel-Matthies K. Verbraucherbildung und Konsum – Was wissen Studierende? – Überlegungen zur Hochschuldidaktik. <i>Haushalt &#38; Bildung</i>. 2010;87(3):48-57."},"date_created":"2021-11-25T19:37:24Z","type":"journal_article","department":[{"_id":"35"},{"_id":"22"},{"_id":"396"},{"_id":"394"},{"_id":"17"}],"status":"public","title":"Verbraucherbildung und Konsum – Was wissen Studierende? – Überlegungen zur Hochschuldidaktik","year":"2010","author":[{"id":"620","first_name":"Regine","last_name":"Bigga","full_name":"Bigga, Regine"},{"full_name":"Schlegel-Matthies, Kirsten","first_name":"Kirsten","last_name":"Schlegel-Matthies","id":"459"}],"publication_status":"published","date_updated":"2023-01-18T12:09:25Z","intvolume":"        87","page":"48-57","language":[{"iso":"ger"}],"_id":"27886","user_id":"61597","volume":87},{"date_updated":"2025-12-16T11:09:51Z","publication_status":"published","intvolume":"        81","article_type":"original","year":"2010","title":"Wannier-function approach to spin excitations in solids","author":[{"first_name":"Ersoy","last_name":"Şaşıoğlu","full_name":"Şaşıoğlu, Ersoy"},{"id":"458","full_name":"Schindlmayr, Arno","first_name":"Arno","orcid":"0000-0002-4855-071X","last_name":"Schindlmayr"},{"full_name":"Friedrich, Christoph","first_name":"Christoph","last_name":"Friedrich"},{"first_name":"Frank","last_name":"Freimuth","full_name":"Freimuth, Frank"},{"last_name":"Blügel","first_name":"Stefan","full_name":"Blügel, Stefan"}],"publication_identifier":{"issn":["1098-0121"],"eissn":["1550-235X"]},"doi":"10.1103/PhysRevB.81.054434","article_number":"054434","language":[{"iso":"eng"}],"abstract":[{"text":"We present a computational scheme to study spin excitations in magnetic materials from first principles. The central quantity is the transverse spin susceptibility, from which the complete excitation spectrum, including single-particle spin-flip Stoner excitations and collective spin-wave modes, can be obtained. The susceptibility is derived from many-body perturbation theory and includes dynamic correlation through a summation over ladder diagrams that describe the coupling of electrons and holes with opposite spins. In contrast to earlier studies, we do not use a model potential with adjustable parameters for the electron-hole interaction but employ the random-phase approximation. To reduce the numerical cost for the calculation of the four-point scattering matrix we perform a projection onto maximally localized Wannier functions, which allows us to truncate the matrix efficiently by exploiting the short spatial range of electronic correlation in the partially filled d or f orbitals. Our implementation is based on the full-potential linearized augmented-plane-wave method. Starting from a ground-state calculation within the local-spin-density approximation (LSDA), we first analyze the matrix elements of the screened Coulomb potential in the Wannier basis for the 3d transition-metal series. In particular, we discuss the differences between a constrained nonmagnetic and a proper spin-polarized treatment for the ferromagnets Fe, Co, and Ni. The spectrum of single-particle and collective spin excitations in fcc Ni is then studied in detail. The calculated spin-wave dispersion is in good overall agreement with experimental data and contains both an acoustic and an optical branch for intermediate wave vectors along the [100] direction. In addition, we find evidence for a similar double-peak structure in the spectral function along the [111] direction. To investigate the influence of static correlation we finally consider LSDA+U as an alternative starting point and show that, together with an improved description of the Fermi surface, it yields a more accurate quantitative value for the spin-wave stiffness constant, which is overestimated in the LSDA.","lang":"eng"}],"issue":"5","publication":"Physical Review B","type":"journal_article","department":[{"_id":"296"},{"_id":"35"},{"_id":"15"},{"_id":"170"},{"_id":"230"}],"file":[{"file_id":"18561","content_type":"application/pdf","title":"Wannier-function approach to spin excitations in solids","file_name":"PhysRevB.81.054434.pdf","file_size":711970,"access_level":"open_access","relation":"main_file","date_updated":"2020-08-30T15:06:10Z","date_created":"2020-08-28T11:33:17Z","description":"© 2010 American Physical Society","creator":"schindlm"}],"date_created":"2020-08-28T11:31:26Z","has_accepted_license":"1","status":"public","ddc":["530"],"user_id":"16199","volume":81,"publisher":"American Physical Society","_id":"18560","quality_controlled":"1","file_date_updated":"2020-08-30T15:06:10Z","citation":{"mla":"Şaşıoğlu, Ersoy, et al. “Wannier-Function Approach to Spin Excitations in Solids.” <i>Physical Review B</i>, vol. 81, no. 5, 054434, American Physical Society, 2010, doi:<a href=\"https://doi.org/10.1103/PhysRevB.81.054434\">10.1103/PhysRevB.81.054434</a>.","apa":"Şaşıoğlu, E., Schindlmayr, A., Friedrich, C., Freimuth, F., &#38; Blügel, S. (2010). Wannier-function approach to spin excitations in solids. <i>Physical Review B</i>, <i>81</i>(5), Article 054434. <a href=\"https://doi.org/10.1103/PhysRevB.81.054434\">https://doi.org/10.1103/PhysRevB.81.054434</a>","ieee":"E. Şaşıoğlu, A. Schindlmayr, C. Friedrich, F. Freimuth, and S. Blügel, “Wannier-function approach to spin excitations in solids,” <i>Physical Review B</i>, vol. 81, no. 5, Art. no. 054434, 2010, doi: <a href=\"https://doi.org/10.1103/PhysRevB.81.054434\">10.1103/PhysRevB.81.054434</a>.","chicago":"Şaşıoğlu, Ersoy, Arno Schindlmayr, Christoph Friedrich, Frank Freimuth, and Stefan Blügel. “Wannier-Function Approach to Spin Excitations in Solids.” <i>Physical Review B</i> 81, no. 5 (2010). <a href=\"https://doi.org/10.1103/PhysRevB.81.054434\">https://doi.org/10.1103/PhysRevB.81.054434</a>.","short":"E. Şaşıoğlu, A. Schindlmayr, C. Friedrich, F. Freimuth, S. Blügel, Physical Review B 81 (2010).","ama":"Şaşıoğlu E, Schindlmayr A, Friedrich C, Freimuth F, Blügel S. Wannier-function approach to spin excitations in solids. <i>Physical Review B</i>. 2010;81(5). doi:<a href=\"https://doi.org/10.1103/PhysRevB.81.054434\">10.1103/PhysRevB.81.054434</a>","bibtex":"@article{Şaşıoğlu_Schindlmayr_Friedrich_Freimuth_Blügel_2010, title={Wannier-function approach to spin excitations in solids}, volume={81}, DOI={<a href=\"https://doi.org/10.1103/PhysRevB.81.054434\">10.1103/PhysRevB.81.054434</a>}, number={5054434}, journal={Physical Review B}, publisher={American Physical Society}, author={Şaşıoğlu, Ersoy and Schindlmayr, Arno and Friedrich, Christoph and Freimuth, Frank and Blügel, Stefan}, year={2010} }"},"isi":"1","oa":"1","external_id":{"arxiv":["1002.4897"],"isi":["000274998000084"]}},{"citation":{"ama":"Shi L, Wudy SA, Buyken A, Hartmann MF, Remer T. 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Kroke, “Birth and early life influences on the timing of puberty onset: results from the DONALD (DOrtmund Nutritional and Anthropometric Longitudinally Designed) Study,” <i>The American Journal of Clinical Nutrition</i>, pp. 1559–1565, 2009, doi: <a href=\"https://doi.org/10.3945/ajcn.2009.28259\">10.3945/ajcn.2009.28259</a>."},"publication":"The American Journal of Clinical Nutrition","_id":"26894","language":[{"iso":"eng"}],"page":"1559-1565","user_id":"61597","doi":"10.3945/ajcn.2009.28259","publication_identifier":{"issn":["0002-9165","1938-3207"]},"author":[{"last_name":"Karaolis-Danckert","first_name":"Nadina","full_name":"Karaolis-Danckert, Nadina"},{"id":"65985","full_name":"Buyken, Anette","last_name":"Buyken","first_name":"Anette"},{"full_name":"Sonntag, Antje","first_name":"Antje","last_name":"Sonntag"},{"full_name":"Kroke, Anja","last_name":"Kroke","first_name":"Anja"}],"status":"public","year":"2009","title":"Birth and early life influences on the timing of puberty onset: results from the DONALD (DOrtmund Nutritional and Anthropometric Longitudinally Designed) Study","publication_status":"published","date_updated":"2022-01-06T06:57:30Z"},{"type":"journal_article","department":[{"_id":"17"},{"_id":"22"},{"_id":"571"}],"date_created":"2021-10-26T13:11:25Z","publication":"The Journal of Nutrition","citation":{"short":"G. 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Cheng <i>et al.</i>, “Diet Quality in Childhood Is Prospectively Associated with the Timing of Puberty but Not with Body Composition at Puberty Onset,” <i>The Journal of Nutrition</i>, pp. 95–102, 2009, doi: <a href=\"https://doi.org/10.3945/jn.109.113365\">10.3945/jn.109.113365</a>.","ama":"Cheng G, Gerlach S, Libuda L, et al. Diet Quality in Childhood Is Prospectively Associated with the Timing of Puberty but Not with Body Composition at Puberty Onset. <i>The Journal of Nutrition</i>. Published online 2009:95-102. doi:<a href=\"https://doi.org/10.3945/jn.109.113365\">10.3945/jn.109.113365</a>","bibtex":"@article{Cheng_Gerlach_Libuda_Kranz_Günther_Karaolis-Danckert_Kroke_Buyken_2009, title={Diet Quality in Childhood Is Prospectively Associated with the Timing of Puberty but Not with Body Composition at Puberty Onset}, DOI={<a href=\"https://doi.org/10.3945/jn.109.113365\">10.3945/jn.109.113365</a>}, journal={The Journal of Nutrition}, author={Cheng, Guo and Gerlach, Steffi and Libuda, Lars and Kranz, Sibylle and Günther, Anke L. B. and Karaolis-Danckert, Nadina and Kroke, Anja and Buyken, Anette}, year={2009}, pages={95–102} }","mla":"Cheng, Guo, et al. “Diet Quality in Childhood Is Prospectively Associated with the Timing of Puberty but Not with Body Composition at Puberty Onset.” <i>The Journal of Nutrition</i>, 2009, pp. 95–102, doi:<a href=\"https://doi.org/10.3945/jn.109.113365\">10.3945/jn.109.113365</a>."},"doi":"10.3945/jn.109.113365","user_id":"61597","page":"95-102","language":[{"iso":"eng"}],"_id":"26895","date_updated":"2022-01-06T06:57:30Z","publication_status":"published","year":"2009","status":"public","title":"Diet Quality in Childhood Is Prospectively Associated with the Timing of Puberty but Not with Body Composition at Puberty Onset","publication_identifier":{"issn":["1541-6100","0022-3166"]},"author":[{"full_name":"Cheng, Guo","first_name":"Guo","last_name":"Cheng"},{"full_name":"Gerlach, Steffi","first_name":"Steffi","last_name":"Gerlach"},{"first_name":"Lars","last_name":"Libuda","orcid":"0000-0003-1603-3133","full_name":"Libuda, Lars","id":"88682"},{"last_name":"Kranz","first_name":"Sibylle","full_name":"Kranz, Sibylle"},{"full_name":"Günther, Anke L. 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Buyken, “Dietary Protein Intake throughout Childhood Is Associated with the Timing of Puberty,” <i>The Journal of Nutrition</i>, pp. 565–571, 2009, doi: <a href=\"https://doi.org/10.3945/jn.109.114934\">10.3945/jn.109.114934</a>.","chicago":"Günther, Anke L. B., Nadina Karaolis-Danckert, Anja Kroke, Thomas Remer, and Anette Buyken. “Dietary Protein Intake throughout Childhood Is Associated with the Timing of Puberty.” <i>The Journal of Nutrition</i>, 2009, 565–71. <a href=\"https://doi.org/10.3945/jn.109.114934\">https://doi.org/10.3945/jn.109.114934</a>.","short":"A.L.B. Günther, N. Karaolis-Danckert, A. Kroke, T. Remer, A. Buyken, The Journal of Nutrition (2009) 565–571.","mla":"Günther, Anke L. 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M., Reinehr, T., &#38; Kersting, M. (2009). Immigrational Background Affects the Effectiveness of a School-based Overweight Prevention Program Promoting Water Consumption. <i>Obesity</i>, 528–534. <a href=\"https://doi.org/10.1038/oby.2009.270\">https://doi.org/10.1038/oby.2009.270</a>","ieee":"R. Muckelbauer, L. Libuda, K. Clausen, A. M. Toschke, T. Reinehr, and M. Kersting, “Immigrational Background Affects the Effectiveness of a School-based Overweight Prevention Program Promoting Water Consumption,” <i>Obesity</i>, pp. 528–534, 2009, doi: <a href=\"https://doi.org/10.1038/oby.2009.270\">10.1038/oby.2009.270</a>.","chicago":"Muckelbauer, Rebecca, Lars Libuda, Kerstin Clausen, André M. Toschke, Thomas Reinehr, and Mathilde Kersting. “Immigrational Background Affects the Effectiveness of a School-Based Overweight Prevention Program Promoting Water Consumption.” <i>Obesity</i>, 2009, 528–34. <a href=\"https://doi.org/10.1038/oby.2009.270\">https://doi.org/10.1038/oby.2009.270</a>.","short":"R. Muckelbauer, L. Libuda, K. Clausen, A.M. Toschke, T. Reinehr, M. Kersting, Obesity (2009) 528–534.","mla":"Muckelbauer, Rebecca, et al. “Immigrational Background Affects the Effectiveness of a School-Based Overweight Prevention Program Promoting Water Consumption.” <i>Obesity</i>, 2009, pp. 528–34, doi:<a href=\"https://doi.org/10.1038/oby.2009.270\">10.1038/oby.2009.270</a>.","ama":"Muckelbauer R, Libuda L, Clausen K, Toschke AM, Reinehr T, Kersting M. Immigrational Background Affects the Effectiveness of a School-based Overweight Prevention Program Promoting Water Consumption. <i>Obesity</i>. Published online 2009:528-534. doi:<a href=\"https://doi.org/10.1038/oby.2009.270\">10.1038/oby.2009.270</a>","bibtex":"@article{Muckelbauer_Libuda_Clausen_Toschke_Reinehr_Kersting_2009, title={Immigrational Background Affects the Effectiveness of a School-based Overweight Prevention Program Promoting Water Consumption}, DOI={<a href=\"https://doi.org/10.1038/oby.2009.270\">10.1038/oby.2009.270</a>}, journal={Obesity}, author={Muckelbauer, Rebecca and Libuda, Lars and Clausen, Kerstin and Toschke, André M. and Reinehr, Thomas and Kersting, Mathilde}, year={2009}, pages={528–534} }"},"publication":"Obesity","department":[{"_id":"35"},{"_id":"22"},{"_id":"395"}],"type":"journal_article","date_created":"2021-11-03T06:57:29Z"},{"type":"journal_article","department":[{"_id":"35"},{"_id":"22"}],"date_created":"2021-11-03T19:44:53Z","abstract":[{"text":"<jats:title>Abstract</jats:title><jats:sec id=\"S1368980009990759_abs1\" sec-type=\"general\"><jats:title>Objective</jats:title><jats:p>Drinking habits in children are associated with diet quality, but validated assessment tools for large-scale studies in young children are lacking. Therefore, we validated a self-completion 24 h recall questionnaire (RQ) focusing on beverage consumption with a 24 h weighed record (WR).</jats:p></jats:sec><jats:sec id=\"S1368980009990759_abs2\" sec-type=\"general\"><jats:title>Design</jats:title><jats:p>Thirty-five voluntary participants from the DONALD (Dortmund Nutritional and Anthropometric Longitudinally Designed) Study cohort aged 7–9 years completed the RQ. The illustrated RQ required ticking the number of glasses of seven beverage categories consumed in five time intervals in the previous 24 h. As a reference, parents completed weighed records of their child’s diet. Agreement between the RQ and WR was tested by classification into consumers and non-consumers (kappa coefficients, <jats:italic>κ</jats:italic>), by the children’s ability to estimate the exact beverage and total volume consumed (Wilcoxon signed-rank test, Spearman rank correlation), and by ranking children according to reported beverage volumes.</jats:p></jats:sec><jats:sec id=\"S1368980009990759_abs3\" sec-type=\"results\"><jats:title>Results</jats:title><jats:p>The RQ and WR showed a good level of agreement for classifying participants into consumers and non-consumers of the single beverage categories (<jats:italic>κ</jats:italic> values between 0·78 and 0·94). Correlation coefficients for the volume of the single categories ranged between 0·81 and 0·91. The total beverage volume was overestimated in the RQ, on average, by 114 ml (<jats:italic>P</jats:italic> = 0·015). Agreement in ranking into tertiles by beverage volume was moderate to good for juice/soft drinks (<jats:italic>κ</jats:italic> = 0·44), milk (<jats:italic>κ</jats:italic> = 0·57) and water (<jats:italic>κ</jats:italic> = 0·70), but fair for the total beverage volume (<jats:italic>κ</jats:italic> = 0·23).</jats:p></jats:sec><jats:sec id=\"S1368980009990759_abs4\" sec-type=\"conclusion\"><jats:title>Conclusions</jats:title><jats:p>Our self-completion 24 h RQ could estimate the consumption of several beverage categories among young children at the group level, but quantification of total beverage volume was flawed.</jats:p></jats:sec>","lang":"eng"}],"publication":"Public Health Nutrition","citation":{"ieee":"R. Muckelbauer, L. Libuda, and M. Kersting, “Relative validity of a self-completion 24 h recall questionnaire to assess beverage consumption among schoolchildren aged 7 to 9 years,” <i>Public Health Nutrition</i>, pp. 187–195, 2009, doi: <a href=\"https://doi.org/10.1017/s1368980009990759\">10.1017/s1368980009990759</a>.","apa":"Muckelbauer, R., Libuda, L., &#38; Kersting, M. (2009). Relative validity of a self-completion 24 h recall questionnaire to assess beverage consumption among schoolchildren aged 7 to 9 years. <i>Public Health Nutrition</i>, 187–195. <a href=\"https://doi.org/10.1017/s1368980009990759\">https://doi.org/10.1017/s1368980009990759</a>","short":"R. Muckelbauer, L. Libuda, M. Kersting, Public Health Nutrition (2009) 187–195.","chicago":"Muckelbauer, Rebecca, Lars Libuda, and Mathilde Kersting. “Relative Validity of a Self-Completion 24 h Recall Questionnaire to Assess Beverage Consumption among Schoolchildren Aged 7 to 9 Years.” <i>Public Health Nutrition</i>, 2009, 187–95. <a href=\"https://doi.org/10.1017/s1368980009990759\">https://doi.org/10.1017/s1368980009990759</a>.","mla":"Muckelbauer, Rebecca, et al. “Relative Validity of a Self-Completion 24 h Recall Questionnaire to Assess Beverage Consumption among Schoolchildren Aged 7 to 9 Years.” <i>Public Health Nutrition</i>, 2009, pp. 187–95, doi:<a href=\"https://doi.org/10.1017/s1368980009990759\">10.1017/s1368980009990759</a>.","bibtex":"@article{Muckelbauer_Libuda_Kersting_2009, title={Relative validity of a self-completion 24 h recall questionnaire to assess beverage consumption among schoolchildren aged 7 to 9 years}, DOI={<a href=\"https://doi.org/10.1017/s1368980009990759\">10.1017/s1368980009990759</a>}, journal={Public Health Nutrition}, author={Muckelbauer, Rebecca and Libuda, Lars and Kersting, Mathilde}, year={2009}, pages={187–195} }","ama":"Muckelbauer R, Libuda L, Kersting M. Relative validity of a self-completion 24 h recall questionnaire to assess beverage consumption among schoolchildren aged 7 to 9 years. <i>Public Health Nutrition</i>. Published online 2009:187-195. doi:<a href=\"https://doi.org/10.1017/s1368980009990759\">10.1017/s1368980009990759</a>"},"doi":"10.1017/s1368980009990759","user_id":"49428","page":"187-195","language":[{"iso":"eng"}],"_id":"27132","date_updated":"2022-01-06T06:57:35Z","publication_status":"published","title":"Relative validity of a self-completion 24 h recall questionnaire to assess beverage consumption among schoolchildren aged 7 to 9 years","year":"2009","status":"public","author":[{"first_name":"Rebecca","last_name":"Muckelbauer","full_name":"Muckelbauer, Rebecca"},{"full_name":"Libuda, Lars","last_name":"Libuda","first_name":"Lars","orcid":"0000-0003-1603-3133","id":"88682"},{"full_name":"Kersting, Mathilde","first_name":"Mathilde","last_name":"Kersting"}],"publication_identifier":{"issn":["1368-9800","1475-2727"]}},{"publication":"American Journal of Epidemiology","citation":{"chicago":"Cheng, G., N. Karaolis-Danckert, Lars Libuda, K. Bolzenius, T. Remer, and Anette E. Buyken. “Relation of Dietary Glycemic Index, Glycemic Load, and Fiber and Whole-Grain Intakes During Puberty to the Concurrent Development of Percent Body Fat and Body Mass Index.” <i>American Journal of Epidemiology</i>, 2009, 667–77. <a href=\"https://doi.org/10.1093/aje/kwn375\">https://doi.org/10.1093/aje/kwn375</a>.","short":"G. Cheng, N. Karaolis-Danckert, L. Libuda, K. Bolzenius, T. Remer, A.E. Buyken, American Journal of Epidemiology (2009) 667–677.","apa":"Cheng, G., Karaolis-Danckert, N., Libuda, L., Bolzenius, K., Remer, T., &#38; Buyken, A. E. (2009). Relation of Dietary Glycemic Index, Glycemic Load, and Fiber and Whole-Grain Intakes During Puberty to the Concurrent Development of Percent Body Fat and Body Mass Index. <i>American Journal of Epidemiology</i>, 667–677. <a href=\"https://doi.org/10.1093/aje/kwn375\">https://doi.org/10.1093/aje/kwn375</a>","ieee":"G. Cheng, N. Karaolis-Danckert, L. Libuda, K. Bolzenius, T. Remer, and A. E. Buyken, “Relation of Dietary Glycemic Index, Glycemic Load, and Fiber and Whole-Grain Intakes During Puberty to the Concurrent Development of Percent Body Fat and Body Mass Index,” <i>American Journal of Epidemiology</i>, pp. 667–677, 2009, doi: <a href=\"https://doi.org/10.1093/aje/kwn375\">10.1093/aje/kwn375</a>.","ama":"Cheng G, Karaolis-Danckert N, Libuda L, Bolzenius K, Remer T, Buyken AE. Relation of Dietary Glycemic Index, Glycemic Load, and Fiber and Whole-Grain Intakes During Puberty to the Concurrent Development of Percent Body Fat and Body Mass Index. <i>American Journal of Epidemiology</i>. Published online 2009:667-677. doi:<a href=\"https://doi.org/10.1093/aje/kwn375\">10.1093/aje/kwn375</a>","bibtex":"@article{Cheng_Karaolis-Danckert_Libuda_Bolzenius_Remer_Buyken_2009, title={Relation of Dietary Glycemic Index, Glycemic Load, and Fiber and Whole-Grain Intakes During Puberty to the Concurrent Development of Percent Body Fat and Body Mass Index}, DOI={<a href=\"https://doi.org/10.1093/aje/kwn375\">10.1093/aje/kwn375</a>}, journal={American Journal of Epidemiology}, author={Cheng, G. and Karaolis-Danckert, N. and Libuda, Lars and Bolzenius, K. and Remer, T. and Buyken, Anette E.}, year={2009}, pages={667–677} }","mla":"Cheng, G., et al. “Relation of Dietary Glycemic Index, Glycemic Load, and Fiber and Whole-Grain Intakes During Puberty to the Concurrent Development of Percent Body Fat and Body Mass Index.” <i>American Journal of Epidemiology</i>, 2009, pp. 667–77, doi:<a href=\"https://doi.org/10.1093/aje/kwn375\">10.1093/aje/kwn375</a>."},"date_created":"2021-11-03T19:49:39Z","type":"journal_article","department":[{"_id":"35"},{"_id":"22"},{"_id":"395"}],"year":"2009","title":"Relation of Dietary Glycemic Index, Glycemic Load, and Fiber and Whole-Grain Intakes During Puberty to the Concurrent Development of Percent Body Fat and Body Mass Index","status":"public","author":[{"first_name":"G.","last_name":"Cheng","full_name":"Cheng, G."},{"full_name":"Karaolis-Danckert, N.","first_name":"N.","last_name":"Karaolis-Danckert"},{"id":"88682","first_name":"Lars","last_name":"Libuda","orcid":"0000-0003-1603-3133","full_name":"Libuda, Lars"},{"full_name":"Bolzenius, K.","last_name":"Bolzenius","first_name":"K."},{"full_name":"Remer, T.","first_name":"T.","last_name":"Remer"},{"full_name":"Buyken, Anette E.","last_name":"Buyken","first_name":"Anette E.","id":"65985"}],"publication_identifier":{"issn":["0002-9262","1476-6256"]},"date_updated":"2022-01-06T06:57:35Z","publication_status":"published","page":"667-677","language":[{"iso":"eng"}],"_id":"27133","doi":"10.1093/aje/kwn375","user_id":"61597"}]
