@article{ZaikinKurths2006,
  author    = {Zaikin, Alexey and Kurths, J{\"u}rgen},
  title     = {Optimal length transportation hypothesis to model proteasome product size distribution},
  series = {Journal of biological physics : emphasizing physical principles in biological research ; an international journal for the formulation and application of mathematical models in the biological sciences},
  volume    = {32},
  journal   = {Journal of biological physics : emphasizing physical principles in biological research ; an international journal for the formulation and application of mathematical models in the biological sciences},
  number    = {3-4},
  publisher = {Springer},
  address   = {Dordrecht},
  issn      = {0092-0606},
  doi       = {10.1007/s10867-006-9014-z},
  pages     = {231 -- 243},
  year      = {2006},
  abstract  = {This paper discusses translocation features of the 20S proteasome in order to explain typical proteasome length distributions. We assume that the protein transport depends significantly on the fragment length with some optimal length which is transported most efficiently. By means of a simple one-channel model, we show that this hypothesis can explain both the one- and the three-peak length distributions found in experiments. A possible mechanism of such translocation is provided by so-called fluctuation-driven transport.},
  language  = {en}
}
@article{ChristensenSchulteLadbeckSanchezetal.2005,
  author    = {Christensen, Lise Bech and Schulte-Ladbeck, R. E. and Sanchez, Sebastian F. and Becker, Thomas and Jahnke, Knud and Kelz, A. and Roth, Martin M. and Wisotzki, Lutz},
  title     = {Abundances and kinematics of a candidate sub-damped Lymana galaxy toward PHL 1226},
  year      = {2005},
  abstract  = {The spectrum of the quasar PHL 1226 is known to have a strong Mg II and sub-damped Lymanalpha (sub-DLA) absorption line system with N(H I) = (5 +/- 2) x 10(19) cm(-2) at z = 0.1602. Using integral field spectra from the Potsdam Multi Aperture Spectrophotometer (PMAS) we investigate a galaxy at an impact parameter of 6".4 which is most probably responsible for the absorption lines. A fainter galaxy at a similar redshift and a slightly larger distance from the QSO is known to exist, but we assume that the absorption is caused by the more nearby galaxy. From optical Balmer lines we estimate an intrinsic reddening consistent with 0, and a moderate star formation rate of 0.5 M-circle dot yr(-1) is inferred from the Ha luminosity. Using nebular emission line ratios we find a solar oxygen abundance 12 + log (O/H) = 8.7 +/- 0.1 and a solar nitrogen to oxygen abundance ratio log (N/O) = -1.0 +/- 0.2. This abundance is larger than those of all known sub-DLA systems derived from analyses of metal absorption lines in quasar spectra. On the other hand, the properties are compatible with the most metal rich galaxies responsible for strong Mg II absorption systems. These two categories can be reconciled if we assume an abundance gradient similar to local galaxies. Under that assumption we predict abundances 12 + log (O/H) = 7.1 and log (N/O) = -1.9 for the sub-DLA cloud, which is similar to high redshift DLA and sub-DLA systems. We find evidence for a rotational velocity of similar to200 km s(-1) over a length of similar to7 kpc. From the geometry and kinematics of the galaxy we estimate that the absorbing cloud does not belong to a rotating disk, but could originate in a rotating halo},
  language  = {en}
}
@article{WisotzkiBeckerChristensenetal.2003,
  author    = {Wisotzki, Lutz and Becker, Thomas and Christensen, Lise Bech and Helms, Andreas and Jahnke, Knud and Kelz, A. and Roth, Martin M. and Sanchez, Sebastian F.},
  title     = {Integral-field spectrophotometry of the quadruple QSO HE 0435-1223 : Evidence for microlensing},
  year      = {2003},
  abstract  = {We present the first spatially resolved spectroscopic observations of the recently discovered quadruple QSO and gravitational lens HE 0435-1223. Using the Potsdam Multi-Aperture Spectrophotometer (PMAS), we show that all four QSO components have very similar but not identical spectra. In particular, the spectral slopes of components A, B, and D are indistinguishable, implying that extinction due to dust plays no major role in the lensing galaxy. While also the emission line profiles are identical within the error bars, as expected from lensing, the equivalent widths show significant differences between components. Most likely, microlensing is responsible for this phenomenon. This is also consistent with the fact that component D, which shows the highest relative continuum level, has brightened by 0.07 mag since Dec. 2001. We find that the emission line flux ratios between the components are in better agreement with simple lens models than broad band or continuum measurements, but that the discrepancies between model and data are still unacceptably large. Finally, we present a detection of the lensing galaxy, although this is close to the limits of the data. Comparing with a model galaxy spectrum, we obtain a redshift estimate of zlens=0.44+/- 0.02.},
  language  = {en}
}
@article{ChristensenSanchezJahnkeetal.2004,
  author    = {Christensen, Lise Bech and Sanchez, Sebastian F. and Jahnke, Knud and Becker, Thomas and Wisotzki, Lutz and Kelz, A. and Popovic, L. C. and Roth, Martin M.},
  title     = {Integral field spectroscopy of extended Ly alpha emission from the DLA galaxy in Q2233+131},
  year      = {2004},
  abstract  = {This paper presents observations of an extended Lyman-alpha emission nebula surrounding the galaxy responsible for the Damped Lyman-alpha Absorption (DLA) line in the spectrum of the quasar Q2233+131. With the Potsdam Multi Aperture Spectrophotometer (PMAS) we measure the properties of the extended Lyalpha emission in an area of 3" x 5" having a total line flux of (2.8 +/- 0.3) x 10(-16) erg cm(-2) s(-1), which at redshift z = 3.15 corresponds to a luminosity of (2.4(-0.2)(+0.3)) x 10(43) erg s(-1) and a size of 23 x 38 kpc. The location of the emission is spatially coincident with the previously detected DLA galaxy, but extends significantly beyond its limb. We argue that the Lya emission is likely to be caused by an outflow from the DLA galaxy, presumably powered by star formation. In the case of negligible dust extinction, the Lya luminosity indicates a star-formation rate of 19 +/- 10 M-. yr(-1) consistent with that derived from the UV continuum flux from the parent galaxy. The wind velocity indicated by the integral field spectra is of the order of several hundred km s(-1). We find no indication of emission originating in a rotating disk},
  language  = {en}
}
@article{WisotzkiBeckerChristensenetal.2004,
  author    = {Wisotzki, Lutz and Becker, Thomas and Christensen, Lise Bech and Jahnke, Knud and Helms, Andreas and Kelz, A. and Roth, Martin M. and Sanchez, Sebastian F.},
  title     = {Integral field spectrophotometry of gravitationally lensed QSOs with PMAS},
  issn      = {0004-6337},
  year      = {2004},
  abstract  = {We present spatially resolved spectrophotometric observations of multiply imaged QSOs, using the Potsdam Multi- Aperture Spectrophotometer (PMAS), with the intention to search for spectral differences between components indicative of either microlensing or dust extinction. For the quadruple QSO HE 0435-1223 we find that the continuum shapes are indistinguishable, therefore differential extinction is negligible. The equivalent widths of the broad emission lines are however significantly different, and we argue that this is most likely due to microlensing. Contrariwise, the two components of the well-known object UM 673 have virtually identical emission line properties, but the continuum slopes differ significantly and indicate different dust extinction along both lines of sight},
  language  = {en}
}
@article{ChristensenSanchezJahnkeetal.2004,
  author    = {Christensen, Lise Bech and Sanchez, Sebastian F. and Jahnke, Knud and Becker, Thomas and Kelz, A. and Wisotzki, Lutz and Roth, Martin M.},
  title     = {Integral field observations of damped Lyman-alpha galaxies},
  year      = {2004},
  abstract  = {We report preliminary results from a targeted investigation on quasars containing damped Lyman-alpha absorption (DLA) lines as well strong metal absorption lines, carried out with the Potsdam Multi Aperture Spectrophotometer (PMAS). We search for line-emitting objects at the same redshift as the absorption lines and close to the line of sight of the QSOs. We have observed and detected the already confirmed absorbing galaxies in Q2233+131 (Z(abs) = 3.15) and Q0151+045 (Z(abs),= 0.168), while failing to find spectral signatures for the z = 0.091 absorber in Q0738+313. From the Q2233+131 DLA galaxy, we have detected extended Lyalpha emission from an area of 3" x 5"},
  language  = {en}
}
@article{JahnkeWisotzkiSanchezetal.2004,
  author    = {Jahnke, Knud and Wisotzki, Lutz and Sanchez, Sebastian F. and Christensen, Lise Bech and Becker, Thomas and Kelz, A. and Roth, Martin M.},
  title     = {Integral field spectroscopy of QSO host galaxies},
  year      = {2004},
  abstract  = {We describe a project to study the state of the ISM in similar to20 low redshift (z < 0.3) QSO host galaxies observed with the PMAS integral field spectrograph. We describe the development of the method to access the stellar and gas components of the spectrum without the strong nuclear emission, in order to access the host galaxy properties in the central region. It shows that integral field spectroscopy promises to be very efficient in studying the gas distribution and its velocity field, and also the spatially resolved stellar population in the host galaxies of luminous AGN},
  language  = {en}
}
@article{ChristensenBeckerJahnkeetal.2003,
  author    = {Christensen, Lise Bech and Becker, Thomas and Jahnke, Knud and Kelz, A. and Roth, Martin M. and Sanchez, S. S. and Wisotzki, Lutz},
  title     = {Integral field spectroscopy of SN 2002er with PMAS},
  year      = {2003},
  abstract  = {sent observations of the Type Ia supernova SN 2002er during the brightening phase. The observations were performed with the Potsdam Multi Aperture Spectrophotometer (PMAS) integral field instrument. Due to the 8arcsecx8 arcsec field of view of the spectrograph an accurate background subtraction was possible. Results from analyses of the evolution of absorption features in comparisons with other SNe show that SN 2002er is a fairly bright Type Ia supernova with a peak brightness of MB=-19.6+/-0.1.},
  language  = {en}
}
@article{Regenstein1995,
  author    = {Regenstein, Wolfgang},
  title     = {FTIR-Reflexionsspektroskopie d{\"u}nner organischer Schichten auf Metalloberfl{\"a}chen},
  year      = {1995},
  language  = {de}
}
@article{MikatFrancoRegensteinetal.2000,
  author    = {Mikat, J{\"u}rgen E. R. and Franco, Olga and Regenstein, Wolfgang and Reck, G{\"u}nter and Knochenhauer, Gerald and Schulz, Burkhard and Orgzall, Ingo},
  title     = {1,3,4-oxadiazole crystals under high pressure-phase transitions and properties},
  year      = {2000},
  language  = {en}
}
@article{WilhelmGebertRegenstein1997,
  author    = {Wilhelm, Hans E. and Gebert, Horst and Regenstein, Wolfgang},
  title     = {Effect of substituents on viscosity dependence of fluorescence and on the S1 - T1 energy gap of Donor-acceptor substituted trans-stilbenes},
  year      = {1997},
  language  = {en}
}
@article{GebertKretzschmarRegenstein1998,
  author    = {Gebert, Horst and Kretzschmar, Wolfgang and Regenstein, Wolfgang},
  title     = {Ground-state complex formation of perylene with pyromellitic dianhydride studied by static fluorescence quenching},
  year      = {1998},
  language  = {en}
}
@article{RegensteinGebertKretzschmar1998,
  author    = {Regenstein, Wolfgang and Gebert, Horst and Kretzschmar, Wolfgang},
  title     = {Charge transfer interaction and static quenching},
  year      = {1998},
  language  = {en}
}
@article{FrancoOrgzallRegensteinetal.2006,
  author    = {Franco, Olga and Orgzall, Ingo and Regenstein, Wolfgang and Schulz, Burkhard},
  title     = {Structural and spectroscopical study of a 2,5-diphenyl-1,3,4-oxadiazole polymorph under compression},
  issn      = {0953-8984},
  doi       = {10.1088/0953-8984/18/4/029},
  year      = {2006},
  abstract  = {The x-ray pattern and the Raman and luminescence spectra of crystalline 2,5-diphenyl-1,3,4-oxadiazole in one of its polymorphic forms (DPO II) have been investigated under pressure up to 5 GPa. The behaviour of the lattice parameters under compression was determined and it was found that the Murnaghan equation of state provides a good description of the volume-pressure relationship of DPO II. The values for the bulk modulus and its pressure derivative are K-0 = 8.6 GPa and K-0' = 7.2. The analysis of the Raman spectrum under compression clearly shows the pressure- induced shift of the Raman modes to higher frequencies. The mode Gruneisen parameters for the lattice modes were determined. Additionally, it was found that the emission spectrum of DPO II moves to lower energies and that the luminescence intensity decreases when pressure is applied},
  language  = {en}
}
@article{KoesterkeDreizlerRauch1998,
  author    = {Koesterke, Lars and Dreizler, S. and Rauch, Thomas},
  title     = {On the mass-loss of PG 1159 stars},
  year      = {1998},
  language  = {en}
}
@phdthesis{Kasper2008,
  author    = {Kasper, Lutz},
  title     = {Diskursiv-narrative Elemente f{\"u}r den Physikunterricht. Entwicklung und Evaluation einer multimedialen Lernumgebung zum Erdmagnetismus},
  address   = {Potsdam},
  pages     = {253 S. : graph. Darst.},
  year      = {2008},
  language  = {de}
}
@phdthesis{Velagapudi2008,
  author    = {Velagapudi, Rama Krishna},
  title     = {Preparation and characterization of thermally stable guest-host polymer thin films for non-linear optical applications},
  address   = {Potsdam},
  pages     = {viii, 112 S.: Ill., graph. Darst.},
  year      = {2008},
  language  = {en}
}
@phdthesis{Velagapudi2008,
  author    = {Velagapudi, Rama Krishna},
  title     = {Preparation and characterization of thermally stable guest-host Polymer thin films for non-lunear optical applications},
  address   = {Potsdam},
  pages     = {111 S., i-viii, : graph. Darst.},
  year      = {2008},
  language  = {en}
}
@article{KowarikGerlachLeitenbergeretal.2007,
  author    = {Kowarik, Stefan and Gerlach, Andreas and Leitenberger, Wolfram and Hu J, Witte and W{\"o}ll, Christoph and Schreiber, Frank},
  title     = {Energy-dispersive X-ray reflectivity and GID for real-time growth studies of pentacene thin films},
  issn      = {0040-6090},
  doi       = {10.1016/j.tsf.2006.12.020},
  year      = {2007},
  abstract  = {We use energy-dispersive X-ray reflectivity and grazing incidence diffraction (GID) to follow the growth of the crystalline organic semiconductor pentacene on silicon oxide in-situ and in real-time. The technique allows for monitoring Bragg reflections and measuring X-ray growth oscillations with a time resolution of 1 min in a wide q-range in reciprocal space extending over 0.25-0.80 angstrom(-1), i.e. sampling a large number of Fourier components simultaneously. A quantitative analysis of growth oscillations at several q-points yields the evolution of the surface roughness, showing a marked transition from layer-by-layer growth to strong roughening after four monolayers of pentacene have been deposited. (c) 2006 Elsevier B.V. All rights reserved.},
  language  = {en}
}
@article{MikelskisSeifertRabe2007,
  author    = {Mikelskis-Seifert, Silke and Rabe, Thorid},
  title     = {Der darbietende Unterricht : darbieten - was und wie?},
  isbn      = {978-3-589-22377-0},
  year      = {2007},
  language  = {de}
}
@article{Mikelskis2007,
  author    = {Mikelskis, Helmut F.},
  title     = {Unterrichtsprinzipien : exemplarisch - genetisch - sokratisch},
  isbn      = {978-3-589-22377-0},
  year      = {2007},
  language  = {de}
}
@article{Rabe2007,
  author    = {Rabe, Thorid},
  title     = {Sch{\"u}lerzentierte Unterrichtsans{\"a}tze : Kooperatives Lernen in Gruppen},
  isbn      = {978-3-589-22377-0},
  year      = {2007},
  language  = {de}
}
@book{OPUS4-11084,
  title     = {Physik Methodik : Handbuch f{\"u}r die Sekundarstufe I und II},
  editor    = {Mikelskis-Seifert, Silke and Rabe, Thorid},
  publisher = {Cornelsen},
  address   = {Berlin},
  isbn      = {978-3-589-22377-0},
  pages     = {240 S.},
  year      = {2007},
  language  = {de}
}
@article{MikelskisSeifertLeisnerBodenthin2007,
  author    = {Mikelskis-Seifert, Silke and Leisner-Bodenthin, Antje},
  title     = {Unterrichtsans{\"a}tze zu den Methoden physikalischer Erkenntnisgewinnung : die Modellmethode},
  isbn      = {978-3-589-22377-0},
  year      = {2007},
  language  = {de}
}
@article{Rabe2007,
  author    = {Rabe, Thorid},
  title     = {Textarbeit und Narration : Textarbeit},
  isbn      = {978-3-589-22377-0},
  year      = {2007},
  language  = {de}
}
@article{Menzel2007,
  author    = {Menzel, Ralf},
  title     = {Photonics : linear and nonlinear interactions of laser light and matter},
  publisher = {Springer},
  address   = {Berlin},
  isbn      = {978-540-67074-2},
  pages     = {1024 S.},
  year      = {2007},
  language  = {en}
}
@article{Kasper2007,
  author    = {Kasper, Lutz},
  title     = {Textarbeit und Narration : Naration},
  isbn      = {978-3-589-22377-0},
  year      = {2007},
  language  = {de}
}
@article{MikelskisSeifertRabe2007,
  author    = {Mikelskis-Seifert, Silke and Rabe, Thorid},
  title     = {Der darbietende Unterricht : Darstellung und Pr{\"a}sentation durch Lehrerinnen},
  isbn      = {978-3-589-22377-0},
  year      = {2007},
  language  = {de}
}
@phdthesis{Silmy2007,
  author    = {Silmy, Kamel},
  title     = {Micro-jet plasma chemical vapor deposition},
  address   = {Potsdam},
  pages     = {xviii, 96 S. : Ill., graph. Darst.},
  year      = {2007},
  language  = {en}
}
@article{ReddyPuranikGuptaetal.2007,
  author    = {Reddy, Raghavendra V. and Puranik, Shikha and Gupta, Ajay and Leitenberger, Wolfram},
  title     = {Study of FePt films prepared by reactive sputtering},
  year      = {2007},
  language  = {en}
}
@phdthesis{Merlo2007,
  author    = {Merlo, Claudia},
  title     = {A model of protein folding kinetics},
  address   = {Potsdam},
  pages     = {89 S. : graph. Darst.},
  year      = {2007},
  language  = {en}
}
@phdthesis{Liepelt2007,
  author    = {Liepelt, Steffen},
  title     = {Energy transduction in network models of molecular motors},
  address   = {Potsdam},
  pages     = {102 S. : graph. Darst.},
  year      = {2007},
  language  = {en}
}
@phdthesis{Beyer2007,
  author    = {Beyer, Florian},
  title     = {Asymptotics and singularities in cosmological models with positive cosmological constant},
  address   = {Potsdam},
  pages     = {173 S. : graph. Darst.},
  year      = {2007},
  language  = {en}
}
@phdthesis{Horn2007,
  author    = {Horn, Martin Erik},
  title     = {Entwicklung und Evaluation eines Unterrichtskonzeptes zur Holographie mit Untersuchungen von Lernprozessen zur Interferenzoptik},
  address   = {Potsdam},
  pages     = {325 S. : graph. Darst.},
  year      = {2007},
  language  = {de}
}
@phdthesis{Wegener2007,
  author    = {Wegener, Michael},
  title     = {Ferroelektrete und Polymersch{\"a}ume: Pr{\"a}paration, Eigenschaften und Anwendung als piezoelektrische Wandler},
  address   = {Potsdam},
  pages     = {129 S. : Ill., graph. Darst.},
  year      = {2007},
  language  = {de}
}
@phdthesis{Koseska2007,
  author    = {Koseska, Aneta},
  title     = {Modeling and control of synthetic gene regulatory networks},
  address   = {Potsdam},
  pages     = {viii, 82 S.},
  year      = {2007},
  language  = {en}
}
@article{BeimGrabenAtmanspacher2006,
  author    = {Beim Graben, Peter and Atmanspacher, Harald},
  title     = {Complementarity in classical dynamical systems},
  issn      = {0015-9018},
  doi       = {10.1007/s10701-005-9013-0},
  year      = {2006},
  abstract  = {The concept of complementarity, originally defined for non-commuting observables of quantum systems with states of non-vanishing dispersion, is extended to classical dynamical systems with a partitioned phase space. Interpreting partitions in terms of ensembles of epistemic states (symbols) with corresponding classical observables, it is shown that such observables are complementary to each other with respect to particular partitions unless those partitions are generating. This explains why symbolic descriptions based on an ad hoc partition of an underlying phase space description should generally be expected to be incompatible. Related approaches with different background and different objectives are discussed},
  language  = {en}
}
@phdthesis{ColpanZenginoglu2007,
  author    = {Colpan Zenginoglu, Anil},
  title     = {A conformal approach to numerical calculations of asymptotically flat spacetimes},
  address   = {Potsdam},
  pages     = {101 S. : graph. Darst.},
  year      = {2007},
  language  = {en}
}
@phdthesis{Voronina2007,
  author    = {Voronina, Olena},
  title     = {Structure-property relations in polymer ferroelectrets},
  address   = {Potsdam},
  pages     = {IV, 145 S., IV : graph. Darst.},
  year      = {2007},
  language  = {en}
}
@phdthesis{Khalatyan2007,
  author    = {Khalatyan, Arman},
  title     = {The influence of nuclear activity onto the morphology of galaxies},
  address   = {Potsdam},
  pages     = {XVII, 155 S. : Ill., graph. Darst.},
  year      = {2007},
  language  = {en}
}
@phdthesis{Grafmueller2007,
  author    = {Grafm{\"u}ller, Andrea},
  title     = {The fusion of membranes and vesicles},
  address   = {Potsdam},
  pages     = {VII, 133 S. : Ill., graph. Darst.},
  year      = {2007},
  language  = {en}
}
@phdthesis{Raab2007,
  author    = {Raab, Corinna},
  title     = {Entwicklung von Large-Scale-Dimensionsdichten und deren Anwendung auf biomedizinische Daten},
  address   = {Potsdam},
  pages     = {IX, 74 S. : graph. Darst.},
  year      = {2007},
  language  = {de}
}
@phdthesis{Mueller2007,
  author    = {M{\"u}ller, Renate},
  title     = {Einfluss der Temperatur auf die Nanomechanik von sph{\"a}rischen und zylindrischen Polyelektrolyt-Multischicht- Hohlk{\"o}rpern},
  address   = {Potsdam},
  pages     = {VI, 114 S. : Ill., graph. Darst.},
  year      = {2007},
  language  = {de}
}
@phdthesis{Ruffoni2007,
  author    = {Ruffoni, Davide},
  title     = {Modeling of material and architectural quality of trabecular bone},
  address   = {Potsdam},
  pages     = {VI, 127 S. Ill., graph. Darst.},
  year      = {2007},
  language  = {en}
}
@article{Starauschek2006,
  author    = {Starauschek, Erich},
  title     = {Zur Rolle der Sprache beim Lernen von Physik},
  isbn      = {3-589-22148-8},
  year      = {2006},
  language  = {de}
}
@article{Rabe2006,
  author    = {Rabe, Thorid},
  title     = {Motivation, Interesse und Selbstkonzept im Physikunterricht},
  isbn      = {3-589-22148-8},
  year      = {2006},
  language  = {de}
}
@article{Klamroth2006,
  author    = {Klamroth, Tillmann},
  title     = {Optimal control of ultrafast laser driven many-electron dynamics in a polyatomic molecule: N-methyl-6-quinolone},
  issn      = {0021-9606},
  doi       = {10.1063/1.2185633},
  year      = {2006},
  abstract  = {We report time-dependent configuration interaction singles calculations for the ultrafast laser driven many- electron dynamics in a polyatomic molecule, N-methyl-6-quinolone. We employ optimal control theory to achieve a nearly state-selective excitation from the S-0 to the S-1 state, on a time scale of a few (approximate to 6) femtoseconds. The optimal control scheme is shown to correct for effects opposing a state-selective transition, such as multiphoton transitions and other, nonlinear phenomena, which are induced by the ultrashort and intense laser fields. In contrast, simple two-level pi pulses are not effective in state-selective excitations when very short pulses are used. Also, the dependence of multiphoton and nonlinear effects on the number of states included in the dynamical simulations is investigated.},
  language  = {en}
}
@article{Mikelskis2006,
  author    = {Mikelskis, Helmut F.},
  title     = {Physikunterricht als Beitrag zur Bew{\"a}ltigung gesellschaftlicher Schl{\"u}sselprobleme},
  isbn      = {3-589-22148-8},
  year      = {2006},
  language  = {de}
}
@book{RahmstorfSchellnhuber2006,
  author    = {Rahmstorf, Stefan and Schellnhuber, Hans Joachim},
  title     = {Der Klimawandel},
  series = {Becksche Reihe},
  volume    = {2366},
  journal   = {Becksche Reihe},
  publisher = {Beck},
  address   = {M{\"u}nchen},
  isbn      = {3-406-50866-9},
  pages     = {144 S.},
  year      = {2006},
  language  = {de}
}
@book{OPUS4-11736,
  title     = {Physik-Didaktik : Praxishandbuch f{\"u}r die Sekundarstufe I und II},
  editor    = {Mikelskis, Helmut F.},
  publisher = {Cornelsen Scriptor},
  address   = {Berlin},
  isbn      = {3-589-22148-8},
  pages     = {288 S.},
  year      = {2006},
  language  = {de}
}
@article{Mikelskis2006,
  author    = {Mikelskis, Helmut F.},
  title     = {Die Rolle des Physikbuches beim Unterrichten und Lernen von Physik},
  isbn      = {3-589-22148-8},
  year      = {2006},
  language  = {de}
}
@article{Mikelskis2006,
  author    = {Mikelskis, Helmut F.},
  title     = {Offener Physikunterricht},
  isbn      = {3-589-22148-8},
  year      = {2006},
  language  = {de}
}
@article{Mikelskis2006,
  author    = {Mikelskis, Helmut F.},
  title     = {Die Nanowelt},
  isbn      = {3-589-22148-8},
  year      = {2006},
  language  = {de}
}
@article{Mikelskis2006,
  author    = {Mikelskis, Helmut F.},
  title     = {Chaosphysik},
  isbn      = {3-589-22148-8},
  year      = {2006},
  language  = {de}
}
@phdthesis{Reimann2006,
  author    = {Reimann, Bernd},
  title     = {Gauge conditions in numerical relativity},
  pages     = {172 S. : graph. Darst.},
  year      = {2006},
  language  = {en}
}
@article{EvansDeviMaketal.2006,
  author    = {Evans, Nicholas R. and Devi, Lekshmi Sudha and Mak, Chris S. K. and Watkins, Scott E. and Pascu, Sofia I. and K{\"o}hler, Anna and Friend, Richard H. and Williams, Charlotte K. and Holmes, Andrew B.},
  title     = {Triplet energy back transfer in conjugated polymers with pendant phosphorescent iridium complexes},
  issn      = {0002-7863},
  doi       = {10.1021/Ja0584267},
  year      = {2006},
  abstract  = {The nature of Dexter triplet energy transfer between bonded systems of a red phosphorescent iridium complex 13 and a conjugated polymer, polyfluorene, has been investigated in electrophosphorescent organic light-emitting diodes. Red- emitting phosphorescent iridium complexes based on the [Ir(btp)2(acac)]fragment (where btp is 2-(2 '- benzo[b]thienyl)pyridinato and acac is acetylacetonate) have been attached either directly (spacerless) or through a - (CH2)(8)-chain (octamethylene-tethered) at the 9-position of a 9-octylfluorene host. The resulting dibromo- functionalized spacerless (8) or octamethylene-tethered (12) fluorene monomers were chain extended by Suzuki polycondensations using the bis(boronate)-terminated fluorene macromonomers 16 in the presence of end-capping chlorobenzene solvent to produce the statistical spacerless (17) and octamethylene-tethered ( 18) copolymers containing an even dispersion of the pendant phosphorescent fragments. The spacerless monomer 12 adopts a face-to-face conformation with a separation of only 3.6 angstrom between the iridium complex and fluorenyl group, as shown by X-ray analysis of a single crystal, and this facilitates intramolecular triplet energy transfer in the spacerless copolymers 17. The photo- and electroluminescence efficiencies of the octamethylene-tethered copolymers 18 are double those of the spacerless copolymers 17, and this is consistent with suppression of the back transfer of triplets from the red phosphorescent iridium complex to the polyfluorene backbone in 18. The incorporation of a -(CH2)(8)- chain between the polymer host and phosphorescent guest is thus an important design principle for achieving higher efficiencies in those electrophosphorescent organic light-emitting diodes for which the triplet energy levels of the host and guest are similar},
  language  = {en}
}
@article{GrossFeudel2006,
  author    = {Gross, Thilo and Feudel, Ulrike},
  title     = {Generalized models as a universal approach to the analysis of nonlinear dynamical systems},
  issn      = {1539-3755},
  doi       = {10.1103/Physreve.73.016205},
  year      = {2006},
  abstract  = {We present a universal approach to the investigation of the dynamics in generalized models. In these models the processes that are taken into account are not restricted to specific functional forms. Therefore a single generalized models can describe a class of systems which share a similar structure. Despite this generality, the proposed approach allows us to study the dynamical properties of generalized models efficiently in the framework of local bifurcation theory. The approach is based on a normalization procedure that is used to identify natural parameters of the system. The Jacobian in a steady state is then derived as a function of these parameters. The analytical computation of local bifurcations using computer algebra reveals conditions for the local asymptotic stability of steady states and provides certain insights on the global dynamics of the system. The proposed approach yields a close connection between modelling and nonlinear dynamics. We illustrate the investigation of generalized models by considering examples from three different disciplines of science: a socioeconomic model of dynastic cycles in china, a model for a coupled laser system and a general ecological food web},
  language  = {en}
}
@article{SchwagerJohstJeltsch2006,
  author    = {Schwager, Monika and Johst, Karin and Jeltsch, Florian},
  title     = {Does red noise increase or decrease extinction risk? Single extreme events versus series of unfavorable conditions},
  year      = {2006},
  abstract  = {Recent theoretical studies have shown contrasting effects of temporal correlation of environmental fluctuations ( red noise) on the risk of population extinction. It is still debated whether and under which conditions red noise increases or decreases extinction risk compared with uncorrelated ( white) noise. Here, we explain the opposing effects by introducing two features of red noise time series. On the one hand, positive autocorrelation increases the probability of series of poor environmental conditions, implying increasing extinction risk. On the other hand, for a given time period, the probability of at least one extremely bad year ("catastrophe") is reduced compared with white noise, implying decreasing extinction risk. Which of these two features determines extinction risk depends on the strength of environmental fluctuations and the sensitivity of population dynamics to these fluctuations. If extreme ( catastrophic) events can occur ( strong noise) or sensitivity is high ( overcompensatory density dependence), then temporal correlation decreases extinction risk; otherwise, it increases it. Thus, our results provide a simple explanation for the contrasting previous findings and are a crucial step toward a general understanding of the effect of noise color on extinction risk},
  language  = {en}
}
@article{PasternakBlasiusAbelsonetal.2006,
  author    = {Pasternak, Zohar and Blasius, Bernd and Abelson, Avigdor and Achituv, Yair},
  title     = {Host-finding behaviour and navigation capabilities of symbiotic zooxanthellae},
  doi       = {10.1007/s00338-005-0085-2},
  year      = {2006},
  abstract  = {Past studies have shown that the initiation of symbiosis between the Red-Sea soft coral Heteroxenia fuscescens and its symbiotic dinoflagellates occurs due to the chemical attraction of the motile algal cells to substances emanating from the coral polyps. However, the resulting swimming patterns of zooxanthellae have not been previously studied. This work examined algal swimming behaviour, host location and navigation capabilities under four conditions: (1) still water, (2) in still water with waterborne host attractants, (3) in flowing water, and (4) in flow with host attractants. Algae were capable of actively and effectively locating their host in still water as well as in flow. When in water containing host attractants, swimming became slower, motion patterns straighter and the direction of motion was mainly towards the host-even if this meant advancing upstream against flow velocities of up to 0.5 mm s(-1)supercript stop. Coral-algae encounter probability decreased the further downstream of the host algae were located, probably due to diffusion of the chemical signal. The results show how the chemoreceptive zooxanthellae modify their swimming pattern, direction, velocity, circuity and turning rate to accommodate efficient navigation in changing environmental conditions},
  language  = {en}
}
@article{LuszczynskaDobruchowskaGlowackietal.2006,
  author    = {Luszczynska, Beata and Dobruchowska, Ewa and Glowacki, Ireneusz and Ulanski, Jacek and Jaiser, Frank and Yang, Xiaohui and Neher, Dieter and Danel, Andrzej},
  title     = {Poly(N-vinylcarbazole) doped with a pyrazoloquinoline dye : a deep blue light-emitting composite for light- emitting diode applications},
  issn      = {0021-8979},
  doi       = {10.1063/1.2162268},
  year      = {2006},
  abstract  = {We investigated the spectral properties of light-emitting diodes based on a deep blue-emitting pyrazoloquinoline dye doped into a poly(N-vinylcarbazole)-based matrix. Even though the electroluminescence (EL) of the host is redshifted and broadened with respect to the emission of the dye, the EL spectrum becomes fully dominated by the dye emission at concentrations of ca. 2 wt \%. This is attributed to a competition of exciplex formation on the matrix and exciton formation on the dye.},
  language  = {en}
}
@article{WinterhalderSchelterKurthsetal.2006,
  author    = {Winterhalder, Matthias and Schelter, B and Kurths, J{\"u}rgen and Schulze-Borthage, A and Timmer, Jens},
  title     = {Sensitivity and specificity of coherence and phase synchronization analysis},
  doi       = {10.1016/j.physleta.2006.03.018},
  year      = {2006},
  abstract  = {In this Letter, we show that coherence and phase synchronization analysis are sensitive but not specific in detecting the correct class of underlying dynamics. We propose procedures to increase specificity and demonstrate the power of the approach by application to paradigmatic dynamic model systems. (c) 2006 Elsevier B.V. All rights reserved},
  language  = {en}
}
@article{CharronCironeNegrettietal.2006,
  author    = {Charron, Eric and Cirone, M. A. and Negretti, Antonio and Schmiedmayer, J{\"o}rg and Calarco, Tommaso},
  title     = {Theoretical analysis of a realistic atom-chip quantum gate},
  issn      = {1050-2947},
  year      = {2006},
  abstract  = {We present a detailed, realistic analysis of the implementation of a proposal for a quantum phase gate based on atomic vibrational states, specializing it to neutral rubidium atoms on atom chips. We show how to create a double-well potential with static currents on the atom chips, using for all relevant parameters values that are achieved with present technology. The potential barrier between the two wells can be modified by varying the currents in order to realize a quantum phase gate for qubit states encoded in the atomic external degree of freedom. The gate performance is analyzed through numerical simulations; the operation time is similar to 10 ms with a performance fidelity above 99.9\%. For storage of the state between the operations the qubit state can be transferred efficiently via Raman transitions to two hyperfine states, where its decoherence is strongly inhibited. In addition we discuss the limits imposed by the proximity of the surface to the gate fidelity.},
  language  = {en}
}
@article{JechowRaabMenzel2006,
  author    = {Jechow, Andreas and Raab, Volker and Menzel, Ralf},
  title     = {High cw power using an external cavity for spectral beam combining of diode laser-bar emission},
  issn      = {0003-6935},
  doi       = {10.1364/AO.45.003545},
  year      = {2006},
  abstract  = {In extension to known concepts of wavelength-multiplexing diode laser arrays, a new external cavity is presented. The setup simultaneously improves the beam quality of each single emitter of a standard 25 emitter broad-area stripe laser bar and spectrally superimposes the 25 beams into one. By using this external resonator in an "off-axis" arrangement, beam qualities of M-slow(2) < 14 and M-fast(2) < 3 with optical powers in excess of 10 W in cw operation are obtained.},
  language  = {en}
}
@article{OstermeyerMudgeVeitchetal.2006,
  author    = {Ostermeyer, Martin and Mudge, Damien and Veitch, Peter John and Munch, Jesper},
  title     = {Thermally induced birefringence in Nd : YAG slab lasers},
  doi       = {10.1364/AO.45.005368},
  year      = {2006},
  abstract  = {We study thermally induced birefringence in crystalline Nd:YAG zigzag slab lasers and the associated depolarization losses. The optimum crystallographic orientation of the zigzag slab within the Nd:YAG boule and photoelastic effects in crystalline Nd:YAG slabs are briefly discussed. The depolarization is evaluated using the temperature and stress distributions, calculated using a finite element model, for realistically pumped and cooled slabs of finite dimensions. Jones matrices are then used to calculate the depolarization of the zigzag laser mode. We compare the predictions with measurements of depolarization, and suggest useful criteria for the design of the gain media for such lasers.},
  language  = {en}
}
@article{YangJaiserKlingeretal.2006,
  author    = {Yang, X. H. and Jaiser, Frank and Klinger, S and Neher, Dieter},
  title     = {Blue polymer electrophosphorescent devices with different electron-transporting oxadiazoles},
  doi       = {10.1063/1.2162693},
  year      = {2006},
  abstract  = {We report that the performances of blue polymer electrophosphorescent devices are crucially depending on the choice of the electron transporting material incorporated into the emissive layer. Devices with 1,3-bis[(4-tert- butylphenyl)-1,3,4-oxidiazolyl]phenylene (OXD-7) doped at similar to 40 wt\% into a poly(vinylcarbazole) matrix exhibited significantly higher efficiencies than those with 2-(4-biphenylyl)-5-(4-tert-butylphenyl)-1,3,4-oxadiazole (PBD), yielding maximum luminous and power efficiency values of 18.2 Cd/A and 8.8 lm/W, respectively. Time resolved photoluminescence measurements revealed a long lifetime phosphorescence component in layers with PBD, which we assign to significant triplet harvesting by this electron-transporting component. (c) 2006 American Institute of Physics},
  language  = {en}
}
@article{DanaBlasiusKurths2006,
  author    = {Dana, Syamal Kumar and Blasius, Bernd and Kurths, J{\"u}rgen},
  title     = {Experimental evidence of anomalous phase synchronization in two diffusively coupled Chua oscillators},
  issn      = {1054-1500},
  doi       = {10.1063/1.2197168},
  year      = {2006},
  abstract  = {We study the transition to phase synchronization in two diffusively coupled, nonidentical Chua oscillators. In the experiments, depending on the used parameterization, we observe several distinct routes to phase synchronization, including states of either in-phase, out-of-phase, or antiphase synchronization, which may be intersected by an intermediate desynchronization regime with large fluctuations of the frequency difference. Furthermore, we report the first experimental evidence of an anomalous transition to phase synchronization, which is characterized by an initial enlargement of the natural frequency difference with coupling strength. This results in a maximal frequency disorder at intermediate coupling levels, whereas usual phase synchronization via monotonic decrease in frequency difference sets in only for larger coupling values. All experimental results are supported by numerical simulations of two coupled Chua models},
  language  = {en}
}
@article{Nest2006,
  author    = {Nest, Mathias},
  title     = {Quantum carpets and correlated dynamics of several fermions},
  doi       = {10.1103/Physreva.73.023613},
  year      = {2006},
  abstract  = {We study theoretically the coherent and correlated motion of many fermions inside an infinite square well potential. We will look at electrons and He-3 atoms, which behave very differently not only because of their masses, but also because of their different interaction potential. Also, the level of theory and the role of approximations in the solution of the time-dependent Schrodinger equation will be discussed},
  language  = {en}
}
@article{OrusLatorreEisertetal.2006,
  author    = {Orus, Roman and Latorre, Jose Ignacio and Eisert, Jens and Cramer, Marcus},
  title     = {Half the entanglement in critical systems is distillable from a single specimen},
  doi       = {10.1103/Physreva.73.060303},
  year      = {2006},
  abstract  = {We establish a quantitative relationship between the entanglement content of a single quantum chain at a critical point and the corresponding entropy of entanglement. We find that, surprisingly, the leading critical scaling of the single-copy entanglement with respect to any bipartitioning is exactly one-half of the entropy of entanglement, in a general setting of conformal field theory and quasifree systems. Conformal symmetry imposes that the single-copy entanglement scales as E-1(rho(L))=(c/6)ln L-(c/6)(pi(2)/ln L)+O(1/L), where L is the number of constituents in a block of an infinite chain and c denotes the central charge. This shows that from a single specimen of a critical chain, already half the entanglement can be distilled compared to the rate that is asymptotically available. The result is substantiated by a quantitative analysis for all translationally invariant quantum spin chains corresponding to all isotropic quasifree fermionic models. An example of the XY spin chain shows that away from criticality the above relation is maintained only near the quantum phase transition},
  language  = {en}
}
@article{VasconcelosLopesVianaetal.2006,
  author    = {Vasconcelos, D. B. and Lopes, S. R. and Viana, R. L. and Kurths, J{\"u}rgen},
  title     = {Spatial recurrence plots},
  doi       = {10.1103/Physreve.73.056207},
  year      = {2006},
  abstract  = {We propose an extension of the recurrence plot concept to perform quantitative analyzes of roughness and disorder of spatial patterns at a fixed time. We introduce spatial recurrence plots (SRPs) as a graphical representation of the pointwise correlation matrix, in terms of a two-dimensional spatial return plot. This technique is applied to the study of complex patterns generated by coupled map lattices, which are characterized by measures of complexity based on SRPs. We show that the complexity measures we propose for SRPs provide a systematic way of investigating the distribution of spatially coherent structures, such as synchronization domains, in lattice profiles. This approach has potential for many more applications, e.g., in surface roughness analyzes},
  language  = {en}
}
@article{SiefertPeinke2006,
  author    = {Siefert, Malte and Peinke, J},
  title     = {Joint multi-scale statistics of longitudinal and transversal increments in small-scale wake turbulence},
  doi       = {10.1080/14685240600677673},
  year      = {2006},
  abstract  = {We analyse the relationship of longitudinal and transversal increment statistics measured in isotropic small- scale turbulence. This is done by means of the theory of Markov processes leading to a phenomenological Fokker - Planck equation for the two increments from which a generalized K arm an equation is derived. We discuss in detail the analysis and show that the estimated equation can describe the statistics of the turbulent cascade. A remarkable result is that the main differences between longitudinal and transversal increments can be explained by a simple rescaling symmetry, namely the cascade speed of the transverse increments is 1.5 times faster than that of the longitudinal increments. Small differences can be found in the skewness and in a higher order intermittency term. The rescaling symmetry is compatible with the Kolmogorov constants and the K arm an equation and gives new insight into the use of extended self- similarity (ESS) for transverse increments. Based on the results we propose an extended self-similarity for the transverse increments (ESST)},
  language  = {en}
}
@article{StrasserOstermeyer2006,
  author    = {Strasser, A and Ostermeyer, Martin},
  title     = {Improving the brightness of side pumped power amplifiers by using core doped ceramic rods},
  year      = {2006},
  abstract  = {In side pumped laser head geometries good extraction of energy has to be weighted against diffraction effects of the amplified beam. Beam clipping at the aperture of laser rods can be avoided by using an undoped cladding around the doped core. The wings of e. g. Gaussian beams can be accommodated in the cladding. Phase distortion by the refractive index step of the rod can be compensated by a phase conjugating mirror in double pass configuration. In our proof of principle experiment the brightness of the beam from core doped amplifier rods was shown to be doubled compared to a conventional rod of the same outer diameter. (c) 2006 Optical Society of America},
  language  = {en}
}
@article{LeMouelNarteauGreffLefftzetal.2006,
  author    = {Le Mouel, Jean-Louis and Narteau, Clement and Greff-Lefftz, Marianne and Holschneider, Matthias},
  title     = {Dissipation at the core-mantle boundary on a small-scale topography},
  issn      = {0148-0227},
  doi       = {10.1029/2005jb003846},
  year      = {2006},
  abstract  = {The parameters of the nutations are now known with a good accuracy, and the theory accounts for most of their values. Dissipative friction at the core-mantle boundary (CMB) and at the inner core boundary is an important ingredient of the theory. Up to now, viscous coupling at a smooth interface and electromagnetic coupling have been considered. In some cases they appear hardly strong enough to account for the observations. We advocate here that the CMB has a small- scale roughness and estimate the dissipation resulting from the interaction of the fluid core motion with this topography. We conclude that it might be significant},
  language  = {en}
}
@article{WesselSchirdewan2006,
  author    = {Wessel, Niels and Schirdewan, Alexander},
  title     = {Toward a prediction of sudden death in propofol-related infusion syndrome},
  year      = {2006},
  language  = {en}
}
@article{AlbersSpahn2006,
  author    = {Albers, Nicole and Spahn, Frank},
  title     = {The influence of particle adhesion on the stability of agglomerates in Saturn's rings},
  issn      = {0019-1035},
  doi       = {10.1016/j.icarus.2005.10.011},
  year      = {2006},
  abstract  = {In planetary rings, binary collisions and mutual gravity are the predominant particle interactions. Based on a viscoelastic contact model we implement the concept of static adhesion. We discuss the collision dynamics and obtain a threshold velocity for restitution or agglomeration to occur. The latter takes place within a range of a few cm s(-1) for icy grains at low temperatures. The stability of such two-body agglomerates bound by adhesion and gravity in a tidal environment is discussed and applied to the saturnian system. A maximal agglomerate size for a given orbit location is obtained. In this way we are able to resolve the borderline of the zone where agglomerates can exist as a function of the agglomerate size and thus gain an alternative to the classical Roche limit. An increasing ring grain size with distance to Saturn as observed by the VIMS-experiment on board the Cassini spacecraft can be found by our estimates and implications for the saturnian system will be addressed.},
  language  = {en}
}
@article{StraubeLyubimovShklyaev2006,
  author    = {Straube, Arthur V. and Lyubimov, Dmitry V. and Shklyaev, Sergey V.},
  title     = {Averaged dynamics of two-phase media in a vibration field},
  doi       = {10.1063/1.2204057},
  year      = {2006},
  abstract  = {The averaged dynamics of various two-phase systems in a high-frequency vibration field is studied theoretically. The continuum approach is applied to describe such systems as solid particle suspensions, emulsions, bubbly fluids, when the volume concentration of the disperse phase is small and gravity is insignificant. The dynamics of the disperse system is considered by means of the method of averaging, when the fast pulsation and slow averaged motion can be treated separately. Two averaged models for both nondeformable and deformable particles, when the compressibility of the disperse phase becomes important, are obtained. A criterion when the compressibility of bubbles cannot be neglected is figured out. For both cases the developed models are applied to study the averaged dynamics of the disperse media in an infinite plane layer under the action of transversal vibration. (C) 2006 American Institute of Physics},
  language  = {en}
}
@article{WaltherWesselMalbergetal.2006,
  author    = {Walther, T and Wessel, Niels and Malberg, Hagen and Voss, Andreas and Stepan, H and Faber, R},
  title     = {A combined technique for predicting pre-eclampsia : concurrent measurement of uterine perfusion and analysis of heart rate and blood pressure variability},
  year      = {2006},
  abstract  = {Objective Pre-eclampsia is a serious complication of pregnancy with high morbidity and mortality and an incidence of 3-5\% in all pregnancies. Early prediction is still insufficient in clinical practice. Although most pre- eclamptic patients have pathological uterine perfusion in the second trimester, perfusion disturbance has a positive predictive accuracy (PPA) only of approximately 30\%. Methods Non-invasive continuous blood pressure recordings were taken simultaneously via a finger cuff for 30 min. Time series of systolic as well as diastolic beat-to-beat pressure values were extracted to analyse heart rate and blood pressure variability and baroreflex sensitivity in 102 second- trimester pregnancies, to assess predictability for pre-eclampsia (n = 16). All women underwent Doppler investigations of the uterine arteries. Results We identified a combination of three variability and baroreflex parameters to best predict pre-eclampsia several weeks before clinical manifestation. The discriminant function of these three parameters classified patients with later pre-eclampsia with a sensitivity of 87.5\%, a specificity of 83.7\%, and a PPA of 50.0\%. Combined with Doppler investigations of uterine arteries, PPA increased to 71.4\%. Conclusions This technique of incorporating one-stop clinical assessment of uterine perfusion and variability parameters in the second trimester produces the most effective prediction of pre-eclampsia to date},
  language  = {en}
}
@article{YangMuellerNeheretal.2006,
  author    = {Yang, Xiaohui and M{\"u}ller, David C. and Neher, Dieter and Meerholz, Klaus},
  title     = {Highly efficient polymeric electrophosphorescent diodes},
  year      = {2006},
  abstract  = {Polymeric electrophosphorescent LEDs with internal quantum efficiencies approaching unity have been fabricated. Such performance levels are previously unknown for OLEDs. The key to this success is redox chemically doped oxetane- crosslinkable hole-transporting layers with multilayer capability (see figure). They improve hole injection and act as electron-blocking layers, without the need to include exciton-or hole-blocking layers},
  language  = {en}
}
@phdthesis{Kuehne2006,
  author    = {K{\"u}hne, Torsten},
  title     = {Wachsende Filamentb{\"u}ndel},
  address   = {Potsdam},
  pages     = {XII, 110 S. : graph. Darst.},
  year      = {2006},
  language  = {de}
}
@phdthesis{Maulbetsch2006,
  author    = {Maulbetsch, Christian},
  title     = {Modeling galaxy formation in different environments},
  address   = {Potsdam},
  pages     = {IV, 138 S. : graph. Darst.},
  year      = {2006},
  language  = {en}
}
@article{BaptistaPereiraKurths2006,
  author    = {Baptista, Murilo da Silva and Pereira, Tiago and Kurths, J{\"u}rgen},
  title     = {Upper bounds in phase synchronous weak coherent chaotic attractors},
  issn      = {0167-2789},
  doi       = {10.1016/j.physd.2006.02.007},
  year      = {2006},
  abstract  = {An approach is presented for coupled chaotic systems with weak coherent motion, from which we estimate the upper bound value for the absolute phase difference in phase synchronous states. This approach shows that synchronicity in phase implies synchronicity in the time of events, a characteristic explored to derive an equation to detect phase synchronization, based on the absolute difference between the time of these events. We demonstrate the potential use of this approach for the phase coherent and the funnel attractor of the Rossler system, as well as for the spiking/bursting Rulkov map.},
  language  = {en}
}
@phdthesis{Brezesinski2005,
  author    = {Brezesinski, Torsten},
  title     = {Herstellung und Charakterisierung funktioneller Mesostrukturierter Metalloxidfilme},
  address   = {Potsdam},
  pages     = {Getr. Z{\"a}hlung : Ill., graph. Darst.},
  year      = {2005},
  language  = {de}
}
@article{WittSchumann2005,
  author    = {Witt, Annette and Schumann, A. Y.},
  title     = {Holocene climate variability on millennial scales recorded in Greenland ice cores},
  issn      = {1023-5809},
  year      = {2005},
  language  = {en}
}
@article{BragardMontbrioMendozaetal.2005,
  author    = {Bragard, Jean and Montbrio, Ernest and Mendoza, C. and Boccaletti, Stefano and Blasius, Bernd},
  title     = {Defect-enhanced anomaly in frequency synchronization of asymmetrically coupled spatially extended systems},
  year      = {2005},
  abstract  = {We analytically establish and numerically show that anomalous frequency synchronization occurs in a pair of asymmetrically coupled chaotic space extended oscillators. The transition to anomalous behaviors is crucially dependent on asymmetries in the coupling configuration, while the presence of phase defects has the effect of enhancing the anomaly in frequency synchronization with respect to the case of merely time chaotic oscillators.},
  language  = {en}
}
@article{FussmannBlasius2005,
  author    = {Fussmann, Gregor F. and Blasius, Bernd},
  title     = {Community response to enrichment is highly sensitive to model structure},
  year      = {2005},
  abstract  = {Biologists use mathematical functions to model, understand, and predict nature. For most biological processes, however, the exact analytical form is not known. This is also true for one of the most basic life processes, the uptake of food or resources. We show that the use of a number of nearly indistinguishable functions, which can serve as phenomenological descriptors of resource uptake, may lead to alarmingly different dynamical behaviour in a simple community model. More specifically, we demonstrate that the degree of resource enrichment needed to destabilize the community dynamics depends critically on the mathematical nature of the uptake function.},
  language  = {en}
}
@article{BlasiusToenjes2005,
  author    = {Blasius, Bernd and Toenjes, Ralf},
  title     = {Quasiregular concentric waves in heterogeneous lattices of coupled oscillators},
  year      = {2005},
  abstract  = {We study the pattern formation in a lattice of locally coupled phase oscillators with quenched disorder. In the synchronized regime quasi regular concentric waves can arise which are induced by the disorder of the system. Maximal regularity is found at the edge of the synchronization regime. The emergence of the concentric waves is related to the symmetry breaking of the interaction function. An explanation of the numerically observed phenomena is given in a one- dimensional chain of coupled phase oscillators. Scaling properties, describing the target patterns are obtained.},
  language  = {en}
}
@article{HuppertBlasiusOlinkyetal.2005,
  author    = {Huppert, Amit and Blasius, Bernd and Olinky, Ronen and Stone, Lewi},
  title     = {A Model for Seasonal Phytoplankton Blooms},
  year      = {2005},
  abstract  = {We analyse a generic bottom-up nutrient phytoplankton model to help understand the dynamics of seasonally recurring algae blooms. The deterministic model displays a wide spectrum of dynamical behaviours, from simple cyclical blooms which trigger annually, to irregular chaotic blooms in which both the time between outbreaks and their magnitudes are erratic. Unusually, despite the persistent seasonal forcing, it is extremely difficult to generate blooms that are both annually recurring and also chaotic or irregular (i.e. in amplitude) even though this characterizes many real time series. Instead the model has a tendency to `skip' with outbreaks often being suppressed from one year to the next. This behaviour is studied in detail and we develop an analytical expression to describe the model's flow in phase space, yielding insights into the mechanism of the bloom recurrence. We also discuss how modifications to the equations through the inclusion of appropriate functional forms can generate more realistic dynamics.},
  language  = {en}
}
@phdthesis{Herrmann2005,
  author    = {Herrmann, Frank},
  title     = {Evolution and analysis of binary black hole spacetimes},
  address   = {Potsdam},
  pages     = {xv, 127 S. : graph. Darst.},
  year      = {2005},
  language  = {en}
}
@phdthesis{Mechau2005,
  author    = {Mechau, Norman},
  title     = {Lichtinduziertes Erweichen azobenzolhaltiger Polymerfilme},
  address   = {Potsdam},
  pages     = {156 S. : graph. Darst.},
  year      = {2005},
  language  = {de}
}
@phdthesis{Saha2005,
  author    = {Saha, Subodh Kumar},
  title     = {The influence of an improved soil scheme on the arctic climate in a RCM},
  address   = {Potsdam},
  pages     = {x, 115 S. : graph. Darst.},
  year      = {2005},
  language  = {en}
}
@article{HayerKhanFriendetal.2005,
  author    = {Hayer, Anna and Khan, A. L. T. and Friend, Richard H. and K{\"o}hler, Anna},
  title     = {Morphology dependence of the triplet excited state formation and absorption in polyfluorene},
  year      = {2005},
  language  = {en}
}
@phdthesis{Leisner2005,
  author    = {Leisner, Antje},
  title     = {Entwicklung von Modellkompetenz im Physikunterricht},
  series = {Studien zum Physik- und Chemielernen},
  volume    = {44},
  journal   = {Studien zum Physik- und Chemielernen},
  publisher = {Logos-Verl.},
  address   = {Berlin},
  isbn      = {3-8325-1020-6},
  issn      = {1614-8967},
  pages     = {vii, 264, XLII S. : Ill., graph. Darst.},
  year      = {2005},
  language  = {de}
}
@article{WichmannJohstSchwageretal.2005,
  author    = {Wichmann, Matthias and Johst, Karin and Schwager, Monika and Jeltsch, Florian and Blasius, Bernd},
  title     = {Extinction risk, coloured noise and the scaling of variance},
  year      = {2005},
  abstract  = {The impact of temporally correlated fluctuating environments (coloured noise) on the extinction risk of populations has become a main focus in theoretical population ecology. In this study we particularly focus on the extinction risk in strongly autocorrelated environments. Here, in contrast to moderate autocorrelation, we found the extinction risk to be highly dependent on the process of noise generation, in particular on the method of variance scaling. Such variance scaling is commonly applied to avoid variance-driven biases when comparing the extinction risk for white and coloured noise. In this study we found an often-used scaling technique to lead to high variability in the resulting variances of different time series for strong auto-correlation eventually leading to deviations in the projected extinction risk. Therefore, we present an alternative method that always delivers the target variance, even in the case of strong temporal correlation. Furthermore, in contrast to the earlier method, our very intuitive method is not bound to auto-regressive processes but can be applied to all types of coloured noises. We recommend the method introduced here to be used when the target of interest is the effect of noise colour on extinction risk not obscured by any variance effects.},
  language  = {en}
}
@phdthesis{Dittrich2005,
  author    = {Dittrich, Bianca},
  title     = {Aspects of classical and quantum dynamics of canonical general relativity},
  address   = {Potsdam},
  pages     = {173 S.},
  year      = {2005},
  language  = {en}
}
@phdthesis{Mishra2005,
  author    = {Mishra, Narayan Chandra},
  title     = {Interactions in and stability of thin liquid films},
  address   = {Potsdam},
  pages     = {x, 110 S. : graph. Darst.},
  year      = {2005},
  language  = {en}
}
@phdthesis{Aulbert2005,
  author    = {Aulbert, Carsten},
  title     = {Finding millisecond binary pulsars in 47 tucanae by applying the hough transformation to radio data},
  address   = {Potsdam},
  pages     = {173 S. : graph. Darst.},
  year      = {2005},
  language  = {en}
}
@article{LiMoehwaldSpitzetal.2005,
  author    = {Li, L. and M{\"o}hwald, Helmuth and Spitz, Christian and von Seggern, David and Mucke, M. and Menzel, Ralf},
  title     = {Long-lived photoinduced charge separation inside polarity gradient capsules},
  year      = {2005},
  language  = {en}
}
@phdthesis{DiezSanJose2005,
  author    = {Diez San Jose, Isabel Maria},
  title     = {Shaping of conductive polypyrrole during polymerization},
  address   = {Potsdam},
  pages     = {100 Bl. : Ill., graph. Darst.},
  year      = {2005},
  language  = {en}
}
@phdthesis{Schwarzer2005,
  author    = {Schwarzer, Rolf},
  title     = {Identification of REDDI and TRB3 as novel transcriptional targets of PI 3-kinase signalling and analysis of their involvement in growth of cancer cells},
  address   = {Potsdam},
  pages     = {99 S. : graph. Darst.},
  year      = {2005},
  language  = {en}
}
@article{BrilliantovPoschel2005,
  author    = {Brilliantov, Nikolai V. and Poschel, T.},
  title     = {Self-diffusion in granular gases : Green-Kubo versus Chapman-Enskog},
  issn      = {1054-1500},
  year      = {2005},
  abstract  = {We study the diffusion of tracers (self-diffusion) in a homogeneously cooling gas of dissipative particles, using the Green-Kubo relation and the Chapman-Enskog approach. The dissipative particle collisions are described by the coefficient of restitution epsilon which for realistic material properties depends on the impact velocity. First, we consider self-diffusion using a constant coefficient of restitution, epsilon=const, as frequently used to simplify the analysis. Second, self-diffusion is studied for a simplified (stepwise) dependence of epsilon on the impact velocity. Finally, diffusion is considered for gases of realistic viscoelastic particles. We find that for epsilon=const both methods lead to the same result for the self-diffusion coefficient. For the case of impact-velocity dependent coefficients of restitution, the Green-Kubo method is, however, either restrictive or too complicated for practical application, therefore we compute the diffusion coefficient using the Chapman-Enskog method. We conclude that in application to granular gases, the Chapman-Enskog approach is preferable for deriving kinetic coefficients. (C) 2005 American Institute of Physics},
  language  = {en}
}
@article{CarvajalWesselVallverduetal.2005,
  author    = {Carvajal, R. and Wessel, Niels and Vallverdu, M. and Caminal, P. and Voss, Andreas},
  title     = {Correlation dimension analysis of heart rate variability in patients with dilated cardiomyopathy},
  issn      = {0169-2607},
  year      = {2005},
  abstract  = {A correlation dimension analysis of heart rate variability (HRV) was applied to a group of 55 patients with dilated cardiomyopathy (DCM) and 55 healthy subjects as controls. The 24-h RR time series for each subject was divided into segments of 10,000 beats to determine the correlation dimension (CD) per segment. A study of the influence of the time delay (tag) in the calculation of CD was performed. Good discrimination between both groups (p < 0.005) was obtained with tag values of 5 or greater. CD values of DCM patients (8.4 ± 1.9) were significantly lower than CD values for controls (9.5 ± 1.9). An analysis of CD values of HRV showed that for healthy people, CD night values (10.6 ± 1.8) were significant greater than CD day values (9.2 ± 1.9), revealing a circadian rhythm. In DCM patients, this circadian rhythm was lost and there were no differences between CD values in day (8.8 ± 2.4) and night (8.9 ± 2. 1). © 2005 Elsevier Ireland Ltd. All rights reserved},
  language  = {en}
}