@article{WagnerShigiaharaMiyamotoetal.2012, author = {Wagner, Torsten and Shigiahara, N. and Miyamoto, K. and Suzurikawa, J. and Finger, F. and Sch{\"o}ning, Michael Josef and Yoshinobu, T.}, title = {Light-addressable Potentiometric Sensors and Light-addressable Electrodes as a Combined Sensor-and-manipulator Microsystem with High Flexibility}, series = {Procedia Engineering}, journal = {Procedia Engineering}, number = {47}, publisher = {Elsevier}, address = {Amsterdam}, issn = {1877-7058}, doi = {10.1016/j.proeng.2012.09.290}, pages = {890 -- 893}, year = {2012}, abstract = {This work describes the novel combination of the light-addressable electrode (LAE) and the light-addressable potentiometric sensor (LAPS) into a microsystem set-up. Both the LAE as well as the LAPS shares the principle of addressing the active spot by means of a light beam. This enables both systems to manipulate resp. to detect an analyte with a high spatial resolution. Hence, combining both principles into a single set-up enables the active stimulation e.g., by means of electrolysis and a simultaneous observation e.g., the response of an entrapped biological cell by detection of extracellular pH changes. The work will describe the principles of both technologies and the necessary steps to integrate them into a single set-up. Furthermore, examples of application and operation of such systems will be presented.}, language = {en} } @article{MuribTranCeunincketal.2012, author = {Murib, Mohammed S. and Tran, Anh Quang and Ceuninck, Ward de and Sch{\"o}ning, Michael Josef and Nesladek, Milos and Serpeng{\"u}zel, Ali and Wagner, Patrick}, title = {Analysis of an optical biosensor based on elastic light scattering from diamond-, glass-, and sapphire microspheres}, series = {Physica Status Solidi A}, volume = {209}, journal = {Physica Status Solidi A}, number = {9}, publisher = {Wiley-VCH}, address = {Weinheim}, issn = {1862-6319}, doi = {10.1002/pssa.201100795}, pages = {1804 -- 1810}, year = {2012}, abstract = {Deoxyribonucleic acid (DNA) and protein recognition are now standard tools in biology. In addition, the special optical properties of microsphere resonators expressed by the high quality factor (Q-factor) of whispering gallery modes (WGMs) or morphology dependent resonances (MDRs) have attracted the attention of the biophotonic community. Microsphere-based biosensors are considered as powerful candidates to achieve label-free recognition of single molecules due to the high sensitivity of their WGMs. When the microsphere surface is modified with biomolecules, the effective refractive index and the effective size of the microsphere change resulting in a resonant wavelength shift. The transverse electric (TE) and the transverse magnetic (TM) elastic light scattering intensity of electromagnetic waves at 600 and 1400 nm are numerically calculated for DNA and unspecific binding of proteins to the microsphere surface. The effect of changing the optical properties was studied for diamond (refractive index 2.34), glass (refractive index 1.50), and sapphire (refractive index 1.75) microspheres with a 50 µm radius. The mode spacing, the linewidth of WGMs, and the shift of resonant wavelength due to the change in radius and refractive index, were analyzed by numerical simulations. Preliminary results of unspecific binding of biomolecules are presented. The calculated shift in WGMs can be used for biomolecules detection.}, language = {en} } @inproceedings{LogenHoefkenSchuba2012, author = {Logen, Steffen and H{\"o}fken, Hans and Schuba, Marko}, title = {Simplifying RAM Forensics : A GUI and Extensions for the Volatility Framework}, series = {2012 Seventh International Conference on Availability, Reliability and Security (ARES), 20-24 August 2012, Prague, Czech Republic}, booktitle = {2012 Seventh International Conference on Availability, Reliability and Security (ARES), 20-24 August 2012, Prague, Czech Republic}, publisher = {IEEE}, address = {New York}, isbn = {978-1-4673-2244-7}, doi = {10.1109/ARES.2012.12}, pages = {620 -- 624}, year = {2012}, abstract = {The Volatility Framework is a collection of tools for the analysis of computer RAM. The framework offers a multitude of analysis options and is used by many investigators worldwide. Volatility currently comes with a command line interface only, which might be a hinderer for some investigators to use the tool. In this paper we present a GUI and extensions for the Volatility Framework, which on the one hand simplify the usage of the tool and on the other hand offer additional functionality like storage of results in a database, shortcuts for long Volatility Framework command sequences, and entirely new commands based on correlation of data stored in the database.}, language = {en} } @article{SchubaHoefken2012, author = {Schuba, Marko and H{\"o}fken, Hans}, title = {Backtrack5: Datensammlung und Reporterstellung f{\"u}r Pentester mit MagicTree / H{\"o}fken, Hans ; Schuba, Marko}, series = {Hakin9. 73 (2012), H. 3}, journal = {Hakin9. 73 (2012), H. 3}, publisher = {-}, isbn = {1733-7186}, pages = {12 -- 16}, year = {2012}, language = {de} } @article{Frings2012, author = {Frings, Michael}, title = {Verbesserter Schutz vor Kostenfallen im elektronischen Gesch{\"a}ftsverkehr („Buttonl{\"o}sung") : Erster Schritt zur Umsetzung der neuen EU-Verbraucherrechterichtlinie}, series = {NWB : NWB-Steuer- und Wirtschaftsrecht}, volume = {2012}, journal = {NWB : NWB-Steuer- und Wirtschaftsrecht}, number = {23}, publisher = {NWB-Verlag}, address = {Herne}, issn = {0028-3460}, pages = {1912 -- 1918}, year = {2012}, abstract = {Der Deutsche Bundestag und Bundesrat haben am 2.3.2012 bzw. 30.3.2012 das Gesetz gegen Kostenfallen im Internet verabschiedet, das am 1.8.2012 in Kraft treten wird. Hiermit hat der deutsche Gesetzgeber einen ersten Schritt getan, um die neue EU-Verbraucherrechterichtlinie vom 25.10.2011 (2011/83/EU, ABl L 304/64) in nationales Recht umzusetzen. Mit dieser Umsetzung ist das dr{\"a}ngendste Problem der Kosten- und Abo-Fallen im elektronischen Gesch{\"a}ftsverkehr aus dem Gesamtpaket der Verbraucherrechterichtlinie herausgel{\"o}st und in dem neugefassten \S 312g BGB behandelt worden. Eile bei der Umsetzung war hier geboten, weil unseri{\"o}se Unternehmen im elektronischen Rechtsverkehr zunehmend und in großem Umfang gegen{\"u}ber ihren Kunden durch irref{\"u}hrende Gestaltungen ihrer Internetseiten verschleiern, dass die angebotenen Leistungen entgeltpflichtig sind.}, language = {de} } @book{Grotendorst2012, author = {Grotendorst, Johannes}, title = {Hierarchical methods for dynamics in complex molecular systems : IAS Winter School, 5 - 9 March 2012, Forschungszentrum J{\"u}lich GmbH ; lecture notes / ed. by Johannes Grotendorst, Godehard Sutmann, Gerhard Gompper, Dominik Marx}, publisher = {Forschungszentrum J{\"u}lich}, address = {J{\"u}lich}, isbn = {978-3-89336-768-9}, pages = {VI, 540 S. zahlr. Ill. u. graph. Darst.}, year = {2012}, language = {en} } @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} } @book{Timme2012, author = {Timme, Michael}, title = {HGB Crashkurs : der sichere Weg durch die Pr{\"u}fung ; [Gesellschafts- und Wirtschaftsrecht]}, publisher = {Beck}, address = {M{\"u}nchen}, isbn = {978-3-406-63679-0}, pages = {127 S.}, year = {2012}, language = {de} }