@article{BersierFruchterStrolgeretal.2006, author = {Bersier, David and Fruchter, Andrew S. and Strolger, Louis-Gregory and Gorosabel, Javier and Levan, Andrew and Burud, Ingunn and Rhoads, James E. and Becker, Andrew C. and Cassan, Andrew C. and Chornock, Ryan and Covino, Stefano and De Jong, Roelof S. and Dominis, Dijana and Filippenko, Alexei V. and Hjorth, Jens and Holmberg, Johan and Malesani, Daniele and Mobasher, Bahram and Olsen, Kurt A. G. and Stefanon, Mauro and Castro Cer{\´o}n, Jos{\´e} Mar{\´i}a C. and Fynbo, Johan P. U. and Holland, Stephen T. and Kouveliotou, Chryssa and Pedersen, Hans-Georg and Tanvir, Nieal R. and Woosley, S. E.}, title = {Evidence for a supernova associated with the X-ray flash 020903}, issn = {0004-637X}, doi = {10.1086/502640}, year = {2006}, abstract = {We present ground-based and Hubble Space Telescope optical observations of the X-ray flash ( XRF) 020903, covering 300 days. The afterglow showed a very rapid rise in the first day, followed by a relatively slow decay in the next few days. There was a clear bump in the light curve after similar to 25 days, accompanied by a drastic change in the spectral energy distribution. The light curve and the spectral energy distribution are naturally interpreted as describing the emergence and subsequent decay of a supernova ( SN), similar to SN 1998bw. At peak luminosity, the SN is estimated to be 0.8 +/- 0.1 mag fainter than SN 1998bw. This argues in favor of the existence of a SN associated with this XRF. A spectrum obtained 35 days after the burst shows emission lines from the host galaxy. We use this spectrum to put an upper limit on the oxygen abundance of the host at [O/H] <= 0.6 dex. We also discuss a possible trend between the softness of several bursts and the early behavior of the optical afterglow, in the sense that XRFs and X-ray-rich gamma- ray bursts ( GRBs) seem to have a plateau phase or even a rising light curve. This can be naturally explained in models in which XRFs are similar to GRBs but are seen off the jet axis.}, language = {en} } @inproceedings{BergmannKopp2006, author = {Bergmann, Kirsten and Kopp, Stefan}, title = {Verbal or visual? : How information is distributed across speech and gesture in spatial dialog}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-10375}, year = {2006}, abstract = {In spatial dialog like in direction giving humans make frequent use of speechaccompanying gestures. Some gestures convey largely the same information as speech while others complement speech. This paper reports a study on how speakers distribute meaning across speech and gesture, and depending on what factors. Utterance meaning and the wider dialog context were tested by statistically analyzing a corpus of direction-giving dialogs. Problems of speech production (as indicated by discourse markers and disfluencies), the communicative goals, and the information status were found to be influential, while feedback signals by the addressee do not have any influence.}, language = {en} } @book{BenRafaelJasperHarris2006, author = {Ben-Rafael, Eliezer and Jasper, Willi and Harris, Paul}, title = {Building a diaspora : Russian Jews in Israel, Germany and the USA}, volume = {13}, publisher = {Brill}, address = {Leiden}, isbn = {978-90-04-15332-5}, pages = {374 S.}, year = {2006}, language = {en} } @phdthesis{Bellin2006, author = {Bellin, Ingo}, title = {Thermosensitive Polymer Networks with Two Different Shapes in Memory}, address = {Potsdam}, pages = {117 S. : graph. Darst.}, year = {2006}, language = {en} } @article{BellWeithoffGaedke2006, author = {Bell, Elanor M. and Weithoff, Guntram and Gaedke, Ursula}, title = {Temporal dynamics and growth of Actinophrys sol (Sarcodina: Heliozoa), the top predator in an extremely acidic lake}, issn = {0046-5070}, doi = {10.1111/j.1365-2427.2006.01561.x}, year = {2006}, abstract = {1. The in situ abundance, biomass and mean cell volume of Actinophrys sol (Sarcodina: Heliozoa), the top predator in an extremely acidic German mining lake (Lake 111; pH 2.65), were determined over three consecutive years (spring to autumn, 2001-03). 2. Actinophrys sol exhibited pronounced temporal and vertical patterns in abundance, biomass and mean cell volume. Increasing from very low spring densities, maxima in abundance and biomass were observed in late June/early July and September. The highest mean abundance recorded during the study was 7 x 10(3) Heliozoa L-1. Heliozoan abundance and biomass were higher in the epilimnion than in the hypolimnion. Actinophrys sol cells from this acidic lake were smaller than individuals of the same species found in other aquatic systems. 3. We determined the growth rate of A. sol using all potential prey items available in, and isolated and cultured from, Lake 111. Prey items included: single-celled and filamentous bacteria of unknown taxonomic affinity, the mixotrophic flagellates Chlamydomonas acidophila and Ochromonas sp., the ciliate Oxytricha sp. and the rotifers Elosa worallii and Cephalodella hoodi. Actinophrys sol fed over a wide-size spectrum from bacteria to metazoans. Positive growth was not supported by all naturally available prey. Actinophrys sol neither increased in cell number (k) nor biomass (k(b)) when starved, with low concentrations of single-celled bacteria or with the alga Ochromonas sp. Positive growth was achieved with single- celled bacteria (k = 0.22 +/- 0.02 d(-1); k(b) = -0.06 +/- 0.02 d(-1)) and filamentous bacteria (k = 0.52 +/- < 0.01 d(- 1); k(b) = 0.66 d(-1)) at concentrations greater than observed in situ, and the alga C. acidophila (up to k = 0.43 +/- 0.03 d(-1); k(b) = 0.44 +/- 0.04 d(-1)), the ciliate Oxytricha sp. (k = 0.34 +/- 0.01 d(-1)) and in mixed cultures containing rotifers and C. acidophila (k = 0.23 +/- 0.02-0.32 +/- 0.02 d(-1); maximum k(b) = 0.42 +/- 0.05 d(-1)). The individual- and biomass-based growth of A. sol was highest when filamentous bacteria were provided. 4. Existing quantitative carbon flux models for the Lake 111 food web can be updated in light of our results. Actinophrys sol are omnivorous predators supported by a mixed diet of filamentous bacteria and C. acidophila in the epilimnion. Heliozoa are important components in the planktonic food webs of 'extreme' environments}, language = {en} } @article{BeitzLaudienLoehmannsroebenetal.2006, author = {Beitz, Toralf and Laudien, Robert and L{\"o}hmannsr{\"o}ben, Hans-Gerd and Kallies, Bernd}, title = {Ion mobility spectrometric investigation of aromatic cations in the gas phase}, issn = {1089-5639}, doi = {10.1021/Jp055335n}, year = {2006}, abstract = {In this work, ion mobility (IM) spectra of more than 50 aromatic compounds were recorded with a laser-based IM spectrometer at atmospheric pressure. IM spectra of PAH in the laser desorption experiment show a high complexity resulting from the occurrence of monomeric, dimeric, and oligomeric cluster ions. The mobilities of all compounds were determined in helium as drift gas. This allows the calculation of the diffusion cross sections (Omega(calc)) on the basis of the exact hard sphere scattering model and their comparison with the experimentally determined diffusion cross sections (Omega(exp)). Extended Omega(exp)/Omega(calc) and Omega(exp/)mass correlations were performed in order to gain insight into conformational properties of cationic alkyl benzenes and internal rotation of phenyl rings in aromatic ions. This is demonstrated with some examples, such as the evaluation of the dihedral angle of the ions of 9,10- diphenylanthracene, o- and m-terphenyl, and 1,2,3- and 1,3,5-triphenylbenzene. Furthermore, sandwich and T-structures of dimeric PAH cations are discussed. The analysis was extended to oligomeric ions with up to nine monomer units. Experimental evidence is presented suggesting the formation of pi-stacks with a transition toward modified pi-stacks with increasing cluster size. The distance between monomeric units in dimeric and oligomeric ions was obtained}, language = {en} } @article{BeissenhirtzSchellerViezzolietal.2006, author = {Beissenhirtz, Moritz Karl and Scheller, Frieder W. and Viezzoli, Maria Silvia and Lisdat, Fred}, title = {Engineered superoxide dismutase monomers for superoxide biosensor applications}, issn = {0003-2700}, doi = {10.1021/Ac051465g}, year = {2006}, abstract = {Because of its high reaction rate and specificity, the enzyme superoxide dismutase (SOD) offers great potential for the sensitive quantification of superoxide radicals in electrochemical biosensors. In this work, monomeric mutants of human Cu,Zn-SOD were engineered to contain one or two additional cysteine residues, which could be used to bind the protein to gold surfaces, thus making the use of promotor molecules unnecessary. Six mutants were successfully designed, expressed, and purified. All mutants bound directly to unmodified gold surfaces via the sulfur of the cysteine residues and showed a quasireversible, direct electron transfer to the electrode. Thermodynamic and kinetic parameters of the electron transfer were characterized and showed only slight variations between the individual mutants. For one of the mutants, the interaction with the superoxide radical was studied in more detail. For both partial reactions of the dismutation, an interaction between protein and radical could be shown. In an amperometric biosensorial approach, the SOD-mutant electrode was successfully applied for the detection of superoxide radicals. In the oxidation region, the electrode surpassed the sensitivity of the commonly used cytochrome c electrodes by similar to 1 order of magnitude while not being limited by interferences, but the electrode did not fully reach the sensitivity of dimeric Cu,Zn-SOD immobilized on MPA-modified gold}, 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} } @misc{BeckHildebrandtLoehmannsroeben2006, author = {Beck, Michael and Hildebrandt, Niko and L{\"o}hmannsr{\"o}ben, Hans-Gerd}, title = {Quantum dots as acceptors in FRET-assays containing serum}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-9504}, year = {2006}, abstract = {Quantum dots (QDs) are common as luminescing markers for imaging in biological applications because their optical properties seem to be inert against their surrounding solvent. This, together with broad and strong absorption bands and intense, sharp tuneable luminescence bands, makes them interesting candidates for methods utilizing F{\"o}rster Resonance Energy Transfer (FRET), e. g. for sensitive homogeneous fluoroimmunoassays (FIA). In this work we demonstrate energy transfer from Eu3+-trisbipyridin (Eu-TBP) donors to CdSe-ZnS-QD acceptors in solutions with and without serum. The QDs are commercially available CdSe-ZnS core-shell particles emitting at 655 nm (QD655). The FRET system was achieved by the binding of the streptavidin conjugated donors with the biotin conjugated acceptors. After excitation of Eu-TBP and as result of the energy transfer, the luminescence of the QD655 acceptors also showed lengthened decay times like the donors. The energy transfer efficiency, as calculated from the decay times of the bound and the unbound components, amounted to 37\%. The F{\"o}rster-radius, estimated from the absorption and emission bands, was ca. 77 {\AA}. The effective binding ratio, which not only depends on the ratio of binding pairs but also on unspecific binding, was obtained from the donor emission dependent on the concentration. As serum promotes unspecific binding, the overall FRET efficiency of the assay was reduced. We conclude that QDs are good substitutes for acceptors in FRET if combined with slow decay donors like Europium. The investigation of the influence of the serum provides guidance towards improving binding properties of QD assays.}, subject = {Quantenpunkt}, language = {en} } @article{BeauvalHainzlScherbaum2006, author = {Beauval, C{\´e}line and Hainzl, Sebastian and Scherbaum, Frank}, title = {Probabilistic seismic hazard estimation in low-seismicity regions considering non-Poissonian seismic occurrence}, issn = {0956-540X}, doi = {10.1111/j.1365-246X.2006.02863.x}, year = {2006}, abstract = {In low-seismicity regions, such as France or Germany, the estimation of probabilistic seismic hazard must cope with the difficult identification of active faults and with the low amount of seismic data available. Since the probabilistic hazard method was initiated, most studies assume a Poissonian occurrence of earthquakes. Here we propose a method that enables the inclusion of time and space dependences between earthquakes into the probabilistic estimation of hazard. Combining the seismicity model Epidemic Type Aftershocks-Sequence (ETAS) with a Monte Carlo technique, aftershocks are naturally accounted for in the hazard determination. The method is applied to the Pyrenees region in Southern France. The impact on hazard of declustering and of the usual assumption that earthquakes occur according to a Poisson process is quantified, showing that aftershocks contribute on average less than 5 per cent to the probabilistic hazard, with an upper bound around 18 per cent}, language = {en} } @article{BeauvalHainzlScherbaum2006, author = {Beauval, Celine and Hainzl, Sebastian and Scherbaum, Frank}, title = {The impact of the spatial uniform distribution of seismicity on probabilistic seismic-hazard estimation}, series = {Bulletin of the Seismological Society of America}, volume = {96}, journal = {Bulletin of the Seismological Society of America}, number = {6}, publisher = {GeoScienceWorld}, address = {Alexandria, Va.}, issn = {0037-1106}, doi = {10.1785/0120060073}, pages = {2465 -- 2471}, year = {2006}, abstract = {The first step in the estimation of probabilistic seismic hazard in a region commonly consists of the definition and characterization of the relevant seismic sources. Because in low-seismicity regions seismicity is often rather diffuse and faults are difficult to identify, large areal source zones are mostly used. The corresponding hypothesis is that seismicity is uniformly distributed inside each areal seismic source zone. In this study, the impact of this hypothesis on the probabilistic hazard estimation is quantified through the generation of synthetic spatial seismicity distributions. Fractal seismicity distributions are generated inside a given source zone and probabilistic hazard is computed for a set of sites located inside this zone. In our study, the impact of the spatial seismicity distribution is defined as the deviation from the hazard value obtained for a spatially uniform seismicity distribution. From the generation of a large number of synthetic distributions, the correlation between the fractal dimension D and the impact is derived. The results show that the assumption of spatially uniform seismicity tends to bias the hazard to higher values. The correlation can be used to determine the systematic biases and uncertainties for hazard estimations in real cases, where the fractal dimension has been determined. We apply the technique in Germany (Cologne area) and in France (Alps).}, language = {en} } @article{BeaulieuBennettFouqueetal.2006, author = {Beaulieu, Jean-Philippe and Bennett, David P. and Fouqu{\´e}, Pascal and Williams, Andrew and Dominik, Martin and Jorgensen, Uffe Grae and Kubas, Daniel and Cassan, Arnaud and Coutures, Christian and Greenhill, John and Hill, Kym and Menzies, John and Sackett, Penny D. and Albrow, Michael D. and Brillant, Stephane and Caldwell, John A. R. and Calitz, Johannes Jacobus and Cook, Kem H. and Corrales Cosmeli, Esperanza de Santa Cecilia and Desort, Morgan and Dieters, Stefan and Dominis, Dijana and Donatowicz, Jadzia and Hoffman, Martie and Kane, Stephen R. and Marquette, Jean-Baptiste and Martin, Ralph and Meintjes, Pieter and Pollard, Karen R. and Sahu, Kailash C. and Vinter, Christian and Wambsganss, Joachim and Woller, Kristian and Horne, Keith and Steele, Iain and Bramich, Daniel M. and Burgdorf, Martin and Snodgrass, Colin and Bode, Mike and Udalski, Andr}, title = {Discovery of a cool planet of 5.5 Earth masses through gravitational microlensing}, issn = {0028-0836}, doi = {10.1038/Nature04441}, year = {2006}, abstract = {In the favoured core-accretion model of formation of planetary systems, solid planetesimals accumulate to build up planetary cores, which then accrete nebular gas if they are sufficiently massive. Around M-dwarf stars ( the most common stars in our Galaxy), this model favours the formation of Earth-mass (M+) to Neptune-mass planets with orbital radii of 1 to 10 astronomical units (AU), which is consistent with the small number of gas giant planets known to orbit M-dwarf host stars(1-4). More than 170 extrasolar planets have been discovered with a wide range of masses and orbital periods, but planets of Neptune's mass or less have not hitherto been detected at separations of more than 0.15 AU from normal stars. Here we report the discovery of a 5.5(-2.7)(+5.5)M(+) planetary companion at a separation of 2.6(- 0.6)(+1.5) AU from a 0.22(-0.11)(+0.21)M(.) M-dwarf star, where M-. refers to a solar mass. (We propose to name it OGLE- 2005-BLG-390Lb, indicating a planetary mass companion to the lens star of the microlensing event.) The mass is lower than that of GJ876d (ref. 5), although the error bars overlap. Our detection suggests that such cool, sub-Neptune-mass planets may be more common than gas giant planets, as predicted by the core accretion theory.}, language = {en} } @article{BaurMuellerHirschmuelleretal.2006, author = {Baur, Heiner and M{\"u}ller, Steffen and Hirschm{\"u}ller, Anja and Huber, Georg and Mayer, Frank}, title = {Reactivity, stability, and strength performance capacity in motor sports}, series = {British journal of sports medicine : the journal of sport and exercise medicine}, volume = {40}, journal = {British journal of sports medicine : the journal of sport and exercise medicine}, publisher = {BMJ Publ. Group}, address = {London}, issn = {0306-3674}, doi = {10.1136/bjsm.2006.025783}, pages = {906 -- 910}, year = {2006}, abstract = {Background: Racing drivers require multifaceted cognitive and physical abilities in a multitasking situation. A knowledge of their physical capacities may help to improve fitness and performance. Objective: To compare reaction time, stability performance capacity, and strength performance capacity of elite racing drivers with those of age-matched, physically active controls. Methods: Eight elite racing drivers and 10 physically active controls matched for age and weight were tested in a reaction and determination test requiring upper and lower extremity responses to visual and audio cues. Further tests comprised evaluation of one-leg postural stability on a two-dimensional moveable platform, measures of maximum strength performance capacity of the extensors of the leg on a leg press, and a test of force capacity of the arms in a sitting position at a steering wheel. An additional arm endurance test consisted of isometric work at the steering wheel at + 30 degrees and -30 degrees where an eccentric threshold load of 30 N.m was applied. Subjects had to hold the end positions above this threshold until exhaustion. Univariate one way analysis of variance (alpha = 0.05) including a Bonferroni adjustment was used to detect group differences between the drivers and controls. Results: The reaction time of the racing drivers was significantly faster than the controls ( p = 0.004). The following motor reaction time and reaction times in the multiple determination test did not differ between the groups. No significant differences (p> 0.05) were found for postural stability, leg extensor strength, or arm strength and endurance. Conclusions: Racing drivers have faster reaction times than age-matched physically active controls. Further development of motor sport-specific test protocols is suggested. According to the requirements of motor racing, strength and sensorimotor performance capacity can potentially be improved.}, language = {en} } @article{Baumgaertel2006, author = {Baumg{\"a}rtel, Hellmut}, title = {Generalized eigenvectors for resonances in the Friedrichs model and their associated Gamov vectors}, issn = {0129-055X}, doi = {10.1142/S0129055X06002589}, year = {2006}, abstract = {A Gelfand triplet for the Hamiltonian H of the Priedrichs model on R with multiplicity space K, dim K < infinity, is constructed such that exactly the resonances (poles of the inverse of the Livsic-matrix) are (generalized) eigenvalues of H. The corresponding eigen(anti)linear forms are calculated explicitly. Using the wave matrices for the wave (Moller) operators the corresponding eigen(anti)linear forms on the Schwartz space S for the unperturbed Hamiltonian Ho are also calculated. It turns out that they are of pure Dirac type and can be characterized by their corresponding Gamov vector lambda -> k/(zeta(0)-lambda)(-1), zeta(0) resonance, k epsilon K, which is uniquely determined by restriction of S to S boolean AND H-+(2), where H-+(2) denotes the Hardy space of the upper half-plane. Simultaneously this restriction yields a truncation of the generalized evolution to the well-known decay semigroup for t >= 0 of the Toeplitz type on H-+(2). That is: Exactly those pre-Gamov vectors a lambda -> k/(zeta-lambda)(-1), ( from the lower half-plane, k epsilon K., have an extension to a generalized eigenvector of H if zeta is a resonance and if k is from that subspace of K which is uniquely determined by its corresponding Dirac type antilinear form}, language = {en} } @article{BaumannLutz2006, author = {Baumann, Otto and Lutz, Kathleen}, title = {Photoreceptor morphogenesis in the Drosophila compound eye : R1-R6 rhabdomeres become twisted just before eclosion}, issn = {0021-9967}, doi = {10.1002/Cne.21030}, year = {2006}, abstract = {The photosensitive microvilli of Drosophila photoreceptors R1-R6 are not aligned in parallel over the entire length of the visual cells. In the distal half of each cell, the microvilli are slightly tilted toward one side and, in the proximal half, extremely toward the opposite side. This phenomenon, termed rhabdomere twisting, has been known for several decades, but the developmental and cell biological basis of rhabdomere twisting has not been studied so far. We show that rhabdomere twisting is also manifested as molecular polarization of the visual cell, because phosphotyrosine- containing proteins are selectively partitioned to different sides of the rhabdomere stalk in the distal. and proximal sections of each R1-R6 photoreceptor. Both the asymmetrical segregation of phosphotyrosine proteins and the tilting of the microvilli occur shortly before eclosion of the flies, when eye development in all other aspects is considered to be essentially complete. Establishment of rhabdomere twisting occurs in a light-independent manner, because phosphotyrosine staining is unchanged in dark-reared wild-type flies and in mutants with defects in the phototransduction cascade, ninaE(17) and norpA(P24). We conclude that antiphosphotyrosine immunofluorescence can be used as a light microscopic probe for the analysis of rhabdomere twisting and that microvilli tilting represents a type of planar cell polarity that is established by an active process in the last phase of photoreceptor morphogenesis, just prior to eclosion of the flies.}, language = {en} } @article{BauerStammVirnichetal.2006, author = {Bauer, Joachim and Stamm, Axel and Virnich, Katharina and Wissing, Karen and M{\"u}ller, Udo and Wirsching, Michael and Schaarschmidt, Uwe}, title = {Correlation between burnout syndrome and psychological and psychosomatic symptoms among teachers}, issn = {0340-0131}, doi = {10.1007/s00420-005-0050-y}, year = {2006}, abstract = {Objectives: Psychosomatic disorders and symptoms that correlate with the so-called burnout syndrome turned out to be the main cause of increasing rates of premature retirement of school teachers. The aim of this study was to evaluate the relation between occupational burden and psychological strain of teachers who are still in work. Methods: A sample of 408 teachers at ten grammar schools (am: High school; German: Gymnasium) in south-western Germany was evaluated. To determine the styles of coping with occupational burden we used the measure of coping capacity questionnaire (MECCA). To analyse the psychopathological and psychosomatic symptom load we applied SCL 90 R questionnaire. Results: According to the MECCA questionnaire, 32.5\% of the sample suffered from burnout (type B), 17.7\% suffered severe strain (type A), 35.9\% showed an unambitious (type S) and 13.8\% showed a healthy-ambitious coping style (type G). Burnout was significantly higher among women, divorced teachers and teachers working part-time. As part of the MECCA, teachers were asked to rate what they regarded as the strongest factor resulting in occupational burden. Teachers indicated that, besides high numbers of pupils in one class, they regarded destructive and aggressive behaviour of pupils as the primary stress factor. According to the SCL 90 R, 20\% of the sample showed a severe degree (defined as > 70 points in the SCL90R GSI) of psychological and psychosomatic symptoms. MECCA type B (burnout) correlated significantly with high psychological and psychosomatic symptom load according to the SCL90R. Conclusions: In school teachers, burnout syndrome, a construct that derived from occupational psychology and occupational medicine, is significantly correlated with psychological and psychosomatic symptoms. Teachers rate destructive and aggressive behaviour of pupils as the primary stress factor.}, language = {en} } @article{BassoAquinoAltafimetal.2006, author = {Basso, Heitor Cury and Aquino, C. V. and Altafim, Ruy Alberto Pisani and Altafim, Ruy Alberto Pisani and Gerhard, Reimund}, title = {Piezoelectricity of a single bubble formed by two oppositely charged Teflon-FEP films}, isbn = {1-4244-0547-5}, year = {2006}, language = {en} } @article{BaptistaZhouKurths2006, author = {Baptista, Murilo da Silva and Zhou, Changsong and Kurths, J{\"u}rgen}, title = {Information transmission in phase synchronous chaotic arrays}, issn = {0256-307X}, doi = {10.1088/0256-307X/23/3/010}, year = {2006}, abstract = {We show many versatile phase synchronous configurations that emerge in an array of coupled chaotic elements due to the presence of a periodic stimulus. Then, we explain the relevance of these configurations to the understanding of how information about such a. stimulus is transmitted from one side to the other in this array. The stimulus actively creates the ways to be transmitted, by making the chaotic elements to phase synchronize}, 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} } @article{BaptistaGrebogiKoberle2006, author = {Baptista, Murilo da Silva and Grebogi, Celso and Koberle, Roland}, title = {Dynamically multilayered visual system of the multifractal fly}, series = {Physical review letters}, volume = {97}, journal = {Physical review letters}, number = {17}, publisher = {American Physical Society}, address = {College Park}, issn = {0031-9007}, doi = {10.1103/PhysRevLett.97.178102}, pages = {4}, year = {2006}, language = {en} }