@article{GutheilBergGrotendorst2012,
  author    = {Gutheil, Inge and Berg, Tommy and Grotendorst, Johannes},
  title     = {Performance Analysis of Parallel Eigensolvers of two Libraries on BlueGene/P},
  series = {Journal of Mathematics and Systems Science},
  volume    = {2},
  journal   = {Journal of Mathematics and Systems Science},
  number    = {4},
  publisher = {David Publishing},
  address   = {Libertyville},
  issn      = {2159-5291},
  doi       = {10.17265/2159-5291/2012.04.003},
  pages     = {231 -- 236},
  year      = {2012},
  abstract  = {Many applications in computational science and engineering require the computation of eigenvalues and vectors of dense symmetric or Hermitian matrices. For example, in DFT (density functional theory) calculations on modern supercomputers 10\% to 30\% of the eigenvalues and eigenvectors of huge dense matrices have to be calculated. Therefore, performance and parallel scaling of the used eigensolvers is of upmost interest. In this article different routines of the linear algebra packages ScaLAPACK and Elemental for parallel solution of the symmetric eigenvalue problem are compared concerning their performance on the BlueGene/P supercomputer. Parameters for performance optimization are adjusted for the different data distribution methods used in the two libraries. It is found that for all test cases the new library Elemental which uses a two-dimensional element by element distribution of the matrices to the processors shows better performance than the old ScaLAPACK library which uses a block-cyclic distribution.},
  language  = {en}
}
@article{Grotendorst2012,
  author    = {Grotendorst, Johannes},
  title     = {Supercomputer programmieren - ein besonderes Studienangebot in J{\"u}lich},
  series = {Junge Wissenschaft. 27 (2012), H. 94},
  journal   = {Junge Wissenschaft. 27 (2012), H. 94},
  publisher = {-},
  isbn      = {0179-8529},
  pages     = {12 -- 14},
  year      = {2012},
  language  = {de}
}
@article{Grotendorst2012,
  author    = {Grotendorst, Johannes},
  title     = {IAS Winter School: Hierarchical Methods for Dynamics in Complex Molecular Systems},
  series = {Innovatives Supercomputing in Deutschland : inSiDE. 10 (2012), H. 1},
  journal   = {Innovatives Supercomputing in Deutschland : inSiDE. 10 (2012), H. 1},
  publisher = {-},
  pages     = {104},
  year      = {2012},
  language  = {en}
}
@article{HennemannKohlReisertetal.2013,
  author    = {Hennemann, J{\"o}rg and Kohl, Claus-Dieter and Reisert, Steffen and Kirchner, Patrick and Sch{\"o}ning, Michael Josef},
  title     = {Copper oxide nanofibres for detection of hydrogen peroxide vapour at high concentrations},
  series = {physica status solidi (a)},
  volume    = {210},
  journal   = {physica status solidi (a)},
  number    = {5},
  publisher = {Wiley},
  address   = {Weinheim},
  issn      = {1862-6319},
  doi       = {10.1002/pssa.201200775},
  pages     = {859 -- 863},
  year      = {2013},
  abstract  = {We present a sensor concept based on copper(II)oxide (CuO) nanofibres for the detection of hydrogen peroxide (H2O2) vapour in the percent per volume (\% v/v) range. The fibres were produced by using the electrospinning technique. To avoid water condensation in the pores, the fibres were initially modified by an exposure to H2S to get an enclosed surface. By a thermal treatment at 350 °C the fibres were oxidised back to CuO. Thereby, the visible pores disappear which was verified by SEM analysis. The fibres show a decrease of resistance with increasing H2O2 concentration which is due to the fact that hydrogen peroxide is an oxidising gas and CuO a p-type semiconductor. The sensor shows a change of resistance within the minute range to the exposure until the maximum concentration of 6.9\% v/v H2O2. At operating temperatures below 450 °C the corresponding sensor response to a concentration of 4.1\% v/v increases. The sensor shows a good reproducibility of the signal at different measurements. CuO seems to be a suitable candidate for the detection of H2O2 vapour at high concentrations. Resistance behaviour of the sensor under exposure to H2O2 vapours between 2.3 and 6.9\% v/v at an operating temperature of 450 °C.},
  language  = {en}
}
@article{ReisertSchneiderGeissleretal.2013,
  author    = {Reisert, Steffen and Schneider, Benno and Geissler, Hanno and Gompel, Matthias van and Wagner, Patrick and Sch{\"o}ning, Michael Josef},
  title     = {Multi-sensor chip for the investigation of different types of metal oxides for the detection of H2O2 in the ppm range},
  series = {physica status solidi (a)},
  volume    = {210},
  journal   = {physica status solidi (a)},
  number    = {5},
  publisher = {Wiley},
  address   = {Weinheim},
  issn      = {1862-6319},
  pages     = {898 -- 904},
  year      = {2013},
  abstract  = {In this work, a multi-sensor chip for the investigation of the sensing properties of different types of metal oxides towards hydrogen peroxide in the ppm range is presented. The fabrication process and physical characterization of the multi-sensor chip are described. Pure SnO2 and WO3 as well as Pd- and Pt-doped SnO2 films are characterized in terms of their sensitivity to H2O2. The sensing films have been prepared by drop-coating of water-dispensed nano-powders. A physical characterization, including scanning electron microscopy and X-ray diffraction analysis of the deposited metal-oxide films, was done. From the measurements in hydrogen peroxide atmosphere, it could be shown, that all of the tested metal oxide films are suitable for the detection of H2O2 in the ppm range. The highest sensitivity and reproducibility was achieved using Pt-doped SnO2. Calibration plot of a SnO2, WO3, Pt-, and Pd-doped SnO2 gas sensor for H2O2 concentrations in the ppm range.},
  language  = {en}
}
@article{KotliarHanssenEberhardtetal.2013,
  author    = {Kotliar, Konstantin and Hanssen, Henner and Eberhardt, Karla and Vilser, Walthard and Schmaderer, Christoph and Halle, Martin and Heemann, Uwe and Baumann, M.},
  title     = {Retinal pulse wave velocity in young male normotensive and mildly hypertensive subjects},
  series = {Microcirculation},
  journal   = {Microcirculation},
  publisher = {Wiley},
  address   = {Malden},
  issn      = {1549-8719},
  year      = {2013},
  language  = {en}
}
@article{MurganBeyerKotliaretal.2013,
  author    = {Murgan, Ilina and Beyer, Sonja and Kotliar, Konstantin and Weber, Lutz and Bechtold-Dalla Pozza, Susanne and Dalla Pozza, Robert and Wegner, Aharon and Sitnikova, Diana and Stock, Konrad and Heemann, Uwe and Schmaderer, Christoph and Baumann, M.},
  title     = {Arterial and Retinal Vascular Changes in Hypertensive and Prehypertensive Adolescents},
  series = {American Journal of Hypertension},
  volume    = {26},
  journal   = {American Journal of Hypertension},
  number    = {3},
  publisher = {Oxford University Press},
  address   = {Oxford},
  issn      = {1941-7225},
  pages     = {400 -- 408},
  year      = {2013},
  language  = {de}
}
@article{FeuchtSchoenbachLanzletal.2013,
  author    = {Feucht, Nikolaus and Sch{\"o}nbach, Etienne Michael and Lanzl, Ines and Kotliar, Konstantin and Lohmann, Chris Patrick and Maier, Mathias},
  title     = {Changes in the foveal microstructure after intravitreal bevacizumab application in patients with retinal vascular disease},
  series = {Clinical Ophthalmology},
  volume    = {7},
  journal   = {Clinical Ophthalmology},
  publisher = {Dove Medical Press},
  address   = {Auckland, New Zealand},
  issn      = {1177-5483},
  pages     = {173 -- 178},
  year      = {2013},
  language  = {en}
}
@article{HeinzelSchaeferMuelleretal.2010,
  author    = {Heinzel, Alexander and Sch{\"a}fer, Ralf and M{\"u}ller, Hans-Wilhelm and Schieffer, Andre and Ingenhag, Ariane and Eickhoff, Simon B. and Northoff, Georg and Franz, Matthias and Hautzel, Hubertus},
  title     = {Increased Activation of the Supragenual Anterior Cingulate Cortex during Visual Emotional Processing in Male Subjects with High Degrees of Alexithymia: An Event-Related fMRI Study},
  series = {Psychotherapy and Psychosomatics},
  volume    = {79},
  journal   = {Psychotherapy and Psychosomatics},
  number    = {6},
  publisher = {Karger},
  address   = {Basel},
  issn      = {0033-3190},
  doi       = {10.1159/000320121},
  pages     = {363 -- 370},
  year      = {2010},
  abstract  = {Background: One of the most prominent neurobiological models of alexithymia assumes an altered function of the anterior cingulate cortex (ACC) as the crucial neural correlate of alexithymia. So far functional imaging studies have yielded inconclusive results. Therefore, we tested this hypothesis in healthy alexithymics and nonalexithymics in an event-related fMRI study. Methods: Thirty high- and 30 low-alexithymic right-handed male subjects (selected by the 20-item Toronto Alexithymia Scale, TAS-20) were investigated with event-related fMRI using a picture viewing paradigm. The stimuli consisted of happy, fearful and neutral facial expressions (Ekman-Friesen) as well as positive, negative and neutral pictures from the International Affective Picture System. Results: Contrasting the high-alexithymic with the low-alexithymic group we observed increased activation of the supragenual ACC for different emotional valences as well as for different emotional stimuli. Moreover, there was a positive correlation of the ACC with the individual TAS-20 scores but no correlations with the individual Beck Depression Inventory scores. Additionally, there was no difference in activity of the amygdala. Conclusions: We demonstrated that the supragenual ACC is constantly activated more strongly in alexithymic subjects and that this activation is related to the symptoms of alexithymia and not to associated symptoms such as depression. Therefore, our findings support the hypothesis of an altered function of the ACC in alexithymia.},
  language  = {en}
}
@article{HeinzelSchaeferMuelleretal.2010,
  author    = {Heinzel, Alexander and Sch{\"a}fer, Ralf and M{\"u}ller, Hans-Wilhelm and Schieffer, Andre and Ingenhag, Ariane and Northoff, Georg and Franz, Matthias and Hautzel, Hubertus},
  title     = {Differential modulation of valence and arousal in high-alexithymic and low-alexithymic individuals},
  series = {Neuroreport},
  volume    = {21},
  journal   = {Neuroreport},
  number    = {15},
  publisher = {Lippincott Williams \& Wilkins},
  address   = {London},
  issn      = {1473-558X},
  doi       = {10.1097/WNR.0b013e32833f38e0},
  pages     = {998 -- 1002},
  year      = {2010},
  abstract  = {High-alexithymic individuals are characterized by an impaired ability to identify and communicate emotions whereas low-alexithymic individuals have a wide-ranging ability to deal with emotions. This study examined the hypothesis that valence and arousal modifications of emotional stimuli differentially modulate cortical regions in high-alexithymic and low-alexithymic individuals. To this end, 28 high-alexithymic and 25 low-alexithymic individuals were investigated with event-related fMRI using visual emotional stimuli. We found differential neural activations in the dorsal anterior cingulate, the insula and the amygdala. We suggest that these differences may account for the impaired ability of high-alexithymic individuals to appropriately handle emotional stimuli.},
  language  = {en}
}