@book{Schelthoff1997,
  author    = {Schelthoff, Christof},
  title     = {Modellierung der SOFC-Brennstoffzelle und die numerische L{\"o}sung mit einem adaptiven Full-Multigrid-Verfahren},
  publisher = {Forschungszentrum J{\"u}lich, Zentralbibliothek},
  address   = {J{\"u}lich},
  pages     = {VI, 100 S. : graph. Darst.},
  year      = {1997},
  language  = {de}
}
@book{Schelthoff1994,
  author    = {Schelthoff, Christof},
  title     = {Vergleich von parallelen Verfahren zur Vorkonditionierung f{\"u}r die Methode der konjugierten Gradienten},
  publisher = {Forschungszentrum J{\"u}lich},
  address   = {J{\"u}lich},
  pages     = {VI, 87 S.},
  year      = {1994},
  language  = {de}
}
@book{Schelthoff2010,
  author    = {Schelthoff, Christof},
  title     = {Mathematik im ingenieurwissenschaftlichen Bachelorstudium / 4., {\"u}berarb. Aufl.},
  publisher = {Shaker},
  address   = {Aachen},
  isbn      = {978-3-8322-9288-1},
  pages     = {542 S. : graph. Darst.},
  year      = {2010},
  language  = {de}
}
@book{Schelthoff2010,
  author    = {Schelthoff, Christof},
  title     = {Mathematik im ingenieurwissenschaftlichen Bachelorstudium : L{\"o}sung der {\"U}bungs- und Klausuraufgaben},
  publisher = {Shaker},
  address   = {Aachen},
  isbn      = {978-3-8322-9502-8},
  pages     = {171 S. : Ill., graph. Darst.},
  year      = {2010},
  language  = {de}
}
@article{SchelthoffBasermann1995,
  author    = {Schelthoff, Christof and Basermann, Achim},
  title     = {Polynomial Preconditioning for the Conjugate Gradient Method on Massively Parallel Systems},
  series = {Workshop {\"u}ber Parallelverarbeitung : Lessach ({\"O}sterreich), 26.9.-30.9.1994 / Institut f{\"u}r Informatik, Clausthal-Zellerfeld. Klaus Ecker; J{\"o}rg Apsel},
  journal   = {Workshop {\"u}ber Parallelverarbeitung : Lessach ({\"O}sterreich), 26.9.-30.9.1994 / Institut f{\"u}r Informatik, Clausthal-Zellerfeld. Klaus Ecker; J{\"o}rg Apsel},
  publisher = {Inst. f{\"u}r Informatik},
  address   = {Clausthal-Zellerfeld},
  pages     = {150 -- 167},
  year      = {1995},
  language  = {de}
}
@article{SchelthoffBasermannReichel1997,
  author    = {Schelthoff, Christof and Basermann, Achim and Reichel, Bj{\"o}rn},
  title     = {Preconditioned CG methods for sparse matrices on massively parallel machines / Basermann, A. ; Reichel, B. ; Schelthoff, C.},
  series = {Parallel Computing. 23 (1997), H. 3},
  journal   = {Parallel Computing. 23 (1997), H. 3},
  isbn      = {0167-8191},
  pages     = {381 -- 398},
  year      = {1997},
  language  = {en}
}
@article{SchelthoffSteffen1996,
  author    = {Schelthoff, Christof and Steffen, Bernhard},
  title     = {Modellierung und Simulation am Beispiel von Hochtemperatur-Brennstoffzellen},
  series = {Praxis der Informationsverarbeitung und Kommunikation : PIK. 19 (1996), H. 3},
  journal   = {Praxis der Informationsverarbeitung und Kommunikation : PIK. 19 (1996), H. 3},
  isbn      = {0930-5157},
  pages     = {138 -- 141},
  year      = {1996},
  language  = {de}
}
@article{SchelthoffSteffenWeidneretal.1997,
  author    = {Schelthoff, Christof and Steffen, Bernhard and Weidner, Peter and Hoßfeld, Friedel},
  title     = {Hochaufl{\"o}sende Modellierung von SOFC-Brennstoffzellen / Schelthoff, Christof ; Steffen, Bernhard ; Weidner, Peter ; Hoßfeld, Friedel ; Divisek, J. ; Jung, Rita},
  series = {Mathematik : Schl{\"u}sseltechnologie f{\"u}r die Zukunft ; Verbundprojekte zwischen Universit{\"a}t und Industrie ; mit 33 Tabellen / Karl-Heinz Hoffmann ... (Hrsg.)},
  journal   = {Mathematik : Schl{\"u}sseltechnologie f{\"u}r die Zukunft ; Verbundprojekte zwischen Universit{\"a}t und Industrie ; mit 33 Tabellen / Karl-Heinz Hoffmann ... (Hrsg.)},
  publisher = {Springer},
  address   = {Berlin},
  isbn      = {3-540-61677-2},
  pages     = {105 -- 115},
  year      = {1997},
  language  = {de}
}
@phdthesis{Schieffer2012,
  author    = {Schieffer, Andre},
  title     = {Studies on diversity and coexistence in an experimental microbial community},
  pages     = {76 Bl. : Ill.},
  year      = {2012},
  abstract  = {Biodiversity and the coexistence of species have puzzled and fascinated biologists since decades and is a hotspot in todays' natural sciences. Preserving this biodiversity is a great challenge as habitats and environments underlying tremendous changes like climate change and the loss of natural habitats, which are mainly due to anthropogenic influences. The coexistence of numerous species even in homogeneous environments is a stunning feature of natural communities and has been summarized under the term 'paradox of plankton'. Up to now, there are several mechanisms discussed, which may contribute to local and global diversity of organisms. Several interspecific trade offs have been identified maintaining the coexistence of species like their abilities regarding competition and predator avoidance, their capability to disperse in space and time, and their ability to exploit variable resources. Further, micro-evolutionary dynamics supporting the coexistence of species have been added to our knowledge, and deriving from theoretical deterministic models, non-linear dynamics which describe the temporal fluctuation of abundances of organisms. Whereas competition and predation seem to be clue structural elements within interacting organisms, the intrinsic dynamic behavior - by means of temporal changes in abundance - plays an important role regarding coexistence within a community. The present work sheds light on different factors affecting the coexistence of species using experimental microbial model systems consisting of a bacterivorous ciliate as the predator and two bacteria strains as prey organism. Additionally, another experimental setup consisting of two up to five bacteria species competing for one limiting resource was investigated. Highly controllable chemostat systems were established to exclude extrinsic disturbances. According to theoretical analyses I was able to show - experimentally and theoretically - that phenotypic plasticity of one species within a microbial one-predator-two-prey food web enlarges the range of possible coexistence of all species under different dynamic conditions, compared to a food web without phenotypic plasticity. This was accompanied by non-linear (chaotic) population dynamics within all experimental systems showing phenotypic plasticity. The experiments on the interplay of competition, predation and invasion showed that all aspects have an influence on species coexistence. Under undisturbed controlled conditions all aspects were analyzed in detail and in combination. Populations showed oscillations which were shown by quasi-chaotic attractors in phase space diagrams. Competition experiments with two up to five bacteria species competing for one limiting resource showed that all organisms were able to coexist which was mediated by species oscillations entering a regime of chaos. Besides that fact it was found, that the productivity (biomass) as well as the total cell numbers - under the same nutrition supply - increased by an increasing number of species in the experimental systems. Up to now, the occurrence of non-linear dynamics in well controlled experimental studies has been recognized several times and this phenomenon seemed to be more common in natural systems than generally assumed.},
  language  = {en}
}
@article{SchierenKleinschmidtSchmutzetal.2019,
  author    = {Schieren, Mark and Kleinschmidt, Joris and Schmutz, Axel and Loop, Torsten and Gatzweiler, Karl-Heinz and Staat, Manfred and Wappler, Frank and Defosse, Jerome},
  title     = {Comparison of forces acting on maxillary incisors during tracheal intubation with different laryngoscopy techniques: a blinded manikin study},
  series = {Anaesthesia},
  volume    = {74},
  journal   = {Anaesthesia},
  number    = {12},
  publisher = {Wiley-Blackwell},
  address   = {Oxford},
  isbn      = {1365-2044},
  doi       = {10.1111/anae.14815},
  year      = {2019},
  language  = {en}
}