@article{ZaksParkKurths2000, author = {Zaks, Michael A. and Park, Eun Hyoung and Kurths, J{\"u}rgen}, title = {On phase synchronization by periodic force in chaotic oscillators with saddle equilibria}, year = {2000}, language = {en} } @article{HainzlZoellerKurths2000, author = {Hainzl, Sebastian and Z{\"o}ller, Gert and Kurths, J{\"u}rgen}, title = {Self-organization of spatio-temporal earthquake clusters}, year = {2000}, language = {en} } @article{BoccalettiValladaresKurths2000, author = {Boccaletti, Stefano and Valladares, D. L. and Kurths, J{\"u}rgen}, title = {Synchronization of chaotic structurally nonequivalent systems}, year = {2000}, language = {en} } @article{ZiehmannSmithKurths2000, author = {Ziehmann, Christine and Smith, Leonard A. and Kurths, J{\"u}rgen}, title = {Localized Lyapunov exponents and the prediction of predictability}, year = {2000}, language = {en} } @article{AnishchenkoKopeikinKurths2000, author = {Anishchenko, Vadim S. and Kopeikin, A. S. and Kurths, J{\"u}rgen}, title = {Studying hyperbolicity in chaotic systems}, year = {2000}, language = {en} } @article{HainzlZoellerKurthsetal.2000, author = {Hainzl, Sebastian and Z{\"o}ller, Gert and Kurths, J{\"u}rgen and Zschau, Jochen}, title = {Seismic quiescence as an indicator for large earthquakes in a system of self-organized criticality}, year = {2000}, language = {en} } @article{WesselVossMalbergetal.2000, author = {Wessel, Niels and Voss, Andreas and Malberg, Hagen and Ziehmann, Christine and Voss, Henning U. and Schirdewan, Alexander and Meyerfeldt, Udo and Kurths, J{\"u}rgen}, title = {Nonlinear analysis of complex phenomena in cardiological data}, year = {2000}, abstract = {The main intention of this contribution is to discuss different nonlinear approaches to heart rate and blood pressure variability analysis for a better understanding of the cardiovascular regulation. We investigate measures of complexity which are based on symbolic dynamics, renormalised entropy and the finite time growth rates. The dual sequence method to estimate the baroreflex sensitivity and the maximal correlation method to estimate the nonlinear coupling between time series are employed for analysing bivariate data. The latter appears to be a suitable method to estimate the strength of the nonlinear coupling and the coupling direction. Heart rate and blood pressure data from clinical pilot studies and from very large clinical studies are analysed. We demonstrate that parameters from nonlinear dynamics are useful for risk stratification after myocardial infarction, for the prediction of life-threatening cardiac events even in short time series, and for modelling the relationship between heart rate and blood pressure regulation. These findings could be of importance for clinical diagnostics, in algorithms for risk stratification, and for therapeutic and preventive tools of next generation implantable cardioverter defibrillators.}, language = {en} } @article{WesselSchumannWesseletal.2000, author = {Wessel, Niels and Schumann, Agnes and Wessel, Niels and Schumann, Agnes and Schirdewan, Alexander and Voss, Andreas and Kurths, J{\"u}rgen}, title = {Entropy measures in heart rate variability data}, year = {2000}, language = {en} } @article{MarwanSchwarzKurthsetal.2000, author = {Marwan, Norbert and Schwarz, Udo and Kurths, J{\"u}rgen and Strecker, Manfred}, title = {ENSO Impact on landslide generation in northwestern Argentina}, issn = {1029-7006}, year = {2000}, abstract = {Climatic changes are of major importance in landslide generation in the Argentine Andes. Increased humidity as a potential influential factor was inferred from the temporal clustering of landslide deposits during a period of significantly wetter climate, 30,000 years ago. A change in seasonality was tested by comparing past (inferred from annual-layered lake deposits, 30,000 years old) and modern (present-day observations) precipitation changes. Quantitative analysis of cross recurrence plots were developed to compare the influence of the El Nino/Southern Oscillation (ENSO) on present and past rainfall variations. This analysis has shown the stronger influence of NE trades in the location of landslide deposits in the intra-andean basin and valleys, what caused a higher contrast between summer and winter rainfall and an increasing of precipitation in La Nina years. This is believed to reduce thresholds for landslide generation in the arid to semiarid intra-andean basins and valleys.}, language = {en} } @article{LandaZaikinKurths2000, author = {Landa, Polina S. and Zaikin, Alexei A and Kurths, J{\"u}rgen}, title = {On noise-induced transitions in nonlinear oscillators}, isbn = {3-540- 41074-0}, year = {2000}, language = {en} }