@article{KotliarSvetlovaMakarovetal.2003,
  author    = {Kotliar, Konstantin and Svetlova, O. V. and Makarov, F. N. and Zaseeva, M. V.},
  title     = {Morfologicheskie i funktsional'nye osobennosti resnichnogo poiaska khrustalika kak kliuchevogo ispolnitel'nogo zvena v mekhanizme akkommodatsii glaza cheloveka = Morpho-functional characteristics of lens ciliary body as a key mechanism of accommodation in},
  series = {Morfologiia (Saint Petersburg, Russia). 123 (2003), H. 3},
  journal   = {Morfologiia (Saint Petersburg, Russia). 123 (2003), H. 3},
  publisher = {-},
  isbn      = {1026-3543},
  pages     = {7 -- 16},
  year      = {2003},
  language  = {en}
}
@article{DachwaldSchmidtSeboldtetal.2003,
  author    = {Dachwald, Bernd and Schmidt, Tanja D. and Seboldt, Wolfgang and Auweter-Kurtz,},
  title     = {Flight Opportunities from Mars to Earth for Piloted Missions Using Continuous Thrust Propulsion / Schmidt, Tanja D. ; Dachwald, Bernd ; Seboldt, Wolfgang ; Auweter-Kurtz, Monika},
  publisher = {-},
  pages     = {1 -- 9},
  year      = {2003},
  language  = {en}
}
@article{HeinrichsPietrzykZiemons2003,
  author    = {Heinrichs, U. and Pietrzyk, U. and Ziemons, Karl},
  title     = {Design optimization of the PMT-ClearPET prototypes based on simulation studies with GEANT3},
  series = {2002 IEEE Nuclear Science Symposium Conference Record, Vol. 3},
  journal   = {2002 IEEE Nuclear Science Symposium Conference Record, Vol. 3},
  issn      = {1082-3654},
  pages     = {682 -- 686},
  year      = {2003},
  abstract  = {Within the Crystal Clear Collaboration four centres are developing 2nd generation high performance small animal PET scanners for different kinds of animals and medical applications. The first prototypes are PMT-based systems including depth of interaction (DOI) detection by using a phoswich layer of LSO and LuYAP. The aim of these simulation studies is to optimize sensitivity and spatial resolution of given designs, which vary in FOVs caused by different detector configurations (ring/octagon) and sizes. For this purpose the simulation tool GEANT3 (CERN) was used. The simulations have shown that all PMT designs with one-to-one coupling of crystals have a very nonlinear axial sensitivity profile. By shifting every other PMT 1/4 of a PMT length in axial direction the sampling of the FOVs became more homogeneous. At an energy threshold of 350keV the regression coefficient increases from 0.818 for the non-shifted to 0.993 for the shifted design. Simulations of a point source centred in the FOV (threshold: 350keV) resulted in sensitivities of 4.2\% for a 4×20PMT (LSO/LuYAP a 10mm) and 3.8\% for a 4×16PMT (LSO/LuYAP a 8mm) ring design. The 3D-MLEM reconstruction of a point source shows the enormous improvement of resolution using a crystal double layer with DOI (3.1mm at 40mm from CFOV) instead of a 20mm single layer (11.9mm).},
  language  = {en}
}
@article{HeinrichsPietrzykZiemons2003,
  author    = {Heinrichs, U. and Pietrzyk, U. and Ziemons, Karl},
  title     = {Design optimization of the PMT-ClearPET prototypes based on simulation studies with GEANT3},
  series = {IEEE Transactions on Nuclear Science},
  volume    = {50},
  journal   = {IEEE Transactions on Nuclear Science},
  number    = {5},
  isbn      = {0018-9499},
  pages     = {1428 -- 1432},
  year      = {2003},
  abstract  = {Within the Crystal Clear Collaboration (CCC), four centers are developing second generation high performance small animal positron emission tomography (PET) scanners for different kinds of animals and medical applications. The first prototypes are photomultiplier tube (PMT)-based systems including depth of interaction (DOI) detection by using a phoswich layer of lutetium oxyorthosilicate (LSO) and lutetium yttrium aluminum perovskite (LuYAP). The aim of these simulation studies is to optimize sensitivity and spatial resolution of given designs, which vary in fields of view (FOVs) caused by different detector configurations (ring/octagon) and sizes. For this purpose the simulation tool GEANT3 (CERN, Geneva, Switzerland) was used.},
  language  = {en}
}
@article{StreunBrandenburgLarueetal.2003,
  author    = {Streun, M. and Brandenburg, G. and Larue, H. and Saleh, H. and Zimmermann, E. and Ziemons, Karl and Halling, H.},
  title     = {Pulse shape discrimination of LSO and LuYAP scintillators for depth of interaction detection in PET},
  series = {2002 IEEE Nuclear Science Symposium Conference Record, Vol. 3},
  journal   = {2002 IEEE Nuclear Science Symposium Conference Record, Vol. 3},
  issn      = {1082-3654},
  pages     = {1636 -- 1639},
  year      = {2003},
  abstract  = {A feasible way to gain the depth of interaction information in a PET scanner is the use of phoswich detectors. In general the layer of interaction is identified front the pulse shape of the corresponding scintillator material. In this work pulses from LSO and LuYAP crystals were investigated in order to find a practical method of distinguishing. It turned out that such a pulse processing could he kept simple due to an additional slow component in the light decay of the LuYAP pulse. At the same time the short decay time guarantees that the major amount of the light output is still collected within a short pulse recording time.},
  language  = {en}
}
@article{StreunBrandenburgLarueetal.2003,
  author    = {Streun, M. and Brandenburg, G. and Larue, H. and Saleh, H. and Zimmermann, E. and Ziemons, Karl and Halling, H.},
  title     = {Pulse shape discrimination of LSO and LuYAP scintillators for depth of interaction detection in PET},
  series = {IEEE Transactions on Nuclear Science},
  volume    = {50},
  journal   = {IEEE Transactions on Nuclear Science},
  number    = {3},
  isbn      = {0018-9499},
  pages     = {344 -- 347},
  year      = {2003},
  abstract  = {A feasible way to gain the depth of interaction information in a positron emission tomography scanner is the use of phoswich detectors. In general, the layer of interaction is identified from the pulse shape of the corresponding scintillator material. In this work, pulses from LSO and LuYAP crystals were investigated in order to find a practical method of distinguishing. It turned out that such a pulse processing could be kept simple because of an additional slow component in the light decay of the LuYAP pulse. At the same time, the short decay time guarantees that the major amount of the light output is still collected within a short pulse recording time.},
  language  = {en}
}
@article{PalmerLindemann2003,
  author    = {Palmer, J. W. and Lindemann, Markus},
  title     = {Business models and market mechanisms : evaluating efficiency in consumer electronic markets},
  series = {Data base and advanced information systems. Bd. 34 (2003), H. 2},
  journal   = {Data base and advanced information systems. Bd. 34 (2003), H. 2},
  issn      = {0105-9912},
  pages     = {23 -- 38},
  year      = {2003},
  language  = {en}
}
@article{KraemerBongaertsBovenbergetal.2003,
  author    = {Kr{\"a}mer, Marco and Bongaerts, Johannes and Bovenberg, Roel and Kremer, Susanne and M{\"u}ller, Ulrike and Orf, Sonja and Wubbolts, Marcel and Raeven, Leon},
  title     = {Metabolic engineering for microbial production of shikimic acid},
  series = {Metabolic engineering},
  volume    = {Vol. 5},
  journal   = {Metabolic engineering},
  number    = {Iss. 4},
  issn      = {1096-7184 (E-Journal); 1096-7176 (Print)},
  pages     = {277 -- 283},
  year      = {2003},
  language  = {en}
}
@article{HellwigVolkmann2003,
  author    = {Hellwig, Angelika and Volkmann, Lutz},
  title     = {Maximally edge-connected digraphs},
  series = {Australasian journal of combinatorics},
  volume    = {Vol. 27},
  journal   = {Australasian journal of combinatorics},
  issn      = {1034-4942 (E-Journal); 1034-4942 (Print)},
  pages     = {23 -- 32},
  year      = {2003},
  language  = {en}
}
@article{SeiblerZevnikKueterLuksetal.2003,
  author    = {Seibler, Jost and Zevnik, Branko and K{\"u}ter-Luks, Birgit and Andreas, Susanne and Kern, Heidrun and Hennek, Thomas and Rode, Anja and Heimann, Cornelia and Faust, Nicole and Kauselmann, Gunther and Schoor, Michael and Jaenisch, Rudolf and Rajewsky, Klaus and K{\"u}hn, Ralf and Schwenk, Frieder},
  title     = {Rapid generation of inducible mouse mutants},
  series = {Nucleic Acids Research},
  volume    = {33},
  journal   = {Nucleic Acids Research},
  number    = {4},
  issn      = {1362-4962},
  doi       = {10.1093/nar/gng012},
  pages     = {e12},
  year      = {2003},
  language  = {en}
}
@article{KearneyHerrmannNavaetal.2003,
  author    = {Kearney, D. and Herrmann, Ulf and Nava, P. and Kelly, B. and Mahoney, R. and Pacheco, J. and Cable, R. and Potrovitza, N. and Blake, D. and Price, H.},
  title     = {Assessment of a Molten Salt Heat Transfer Fluid in a Parabolic Trough Solar Field},
  series = {Journal of Solar Energy Engineering},
  volume    = {125},
  journal   = {Journal of Solar Energy Engineering},
  number    = {2},
  issn      = {1528-8986},
  doi       = {10.1115/1.1565087},
  pages     = {170 -- 176},
  year      = {2003},
  language  = {en}
}