Zobrazeno 1 - 10
of 71
pro vyhledávání: '"Ulrich Behn"'
Autor:
Michael Höckel, Ulrich Behn
Publikováno v:
Frontiers in Oncology, Vol 9 (2019)
Local spread patterns of malignant tumors follow permissive tissue territories, i.e., cancer fields, as shown for cervical and vulvar carcinoma. The cancer fields are associated in reverse order to the mature derivatives of the morphogenetic fields i
Externí odkaz:
https://doaj.org/article/ae0de7f2714141ceb1e8d18e5d25e72d
Publikováno v:
Journal of Theoretical Biology. 426:17-39
We consider self-tolerance and its failure -autoimmunity- in a minimal mathematical model of the idiotypic network. A node in the network represents a clone of B-lymphocytes and its antibodies of the same idiotype which is encoded by a bitstring. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e911d68f7048ae4b863a48a954aee8bf
https://doi.org/10.1016/j.jtbi.2017.05.004
https://doi.org/10.1016/j.jtbi.2017.05.004
Autor:
Rüdiger Kürsten, Ulrich Behn
Publikováno v:
Physical review. E. 94(6-1)
An infinite array of globally coupled overdamped constituents moving in a double-well potential with $n$-th order saturation term under the influence of additive Gaussian white noise is investigated. The system exhibits a continuous phase transition
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::25a19dd91582d72b8fc3f77c64034938
https://pubmed.ncbi.nlm.nih.gov/28085326
https://pubmed.ncbi.nlm.nih.gov/28085326
Autor:
Ulrich Behn, Rüdiger Kürsten
We propose a method to sample stationary properties of solutions of stochastic differential equations, which is accurate and efficient if there are rarely visited regions or rare transitions between distinct regions of the state space. The method is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::44fd7762f9c502819780e9e39dbadf9b
http://arxiv.org/abs/1510.00597
http://arxiv.org/abs/1510.00597
Autor:
Ulrich Behn, Thomas Nowotny
Publikováno v:
Journal of Physics A: Mathematical and General. 34:8057-8079
The local magnetization in the one-dimensional random-field Ising model is essentially the sum of two effective fields with multifractal probability measure. The probability measure of the local magnetization is thus the convolution of two multifract
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e294d8233a85228a598e796dd3131ec1
https://doi.org/10.1088/0305-4470/34/39/308
https://doi.org/10.1088/0305-4470/34/39/308
Publikováno v:
Journal of Physics A: Mathematical and General. 34:1-23
We consider the one dimensional classical Ising model in a symmetric dichotomous random field. The problem is reduced to a random iterated function system for an effective field. The D_q-spectrum of the invariant measure of this effective field exhib
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f801df0e3d735ad17abe5c3e90d5494e
https://doi.org/10.1088/0305-4470/34/1/301
https://doi.org/10.1088/0305-4470/34/1/301
Publikováno v:
Physical Review E. 58:2047-2060
We study the stochastic stability of a system described by two coupled ordinary differential equations parameterically driven by dichotomous noise with finite correlation time. For a given realization of the driving noise ~a sample!, the long time be
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cf14bebdab6322346fd70340e161fd18
https://doi.org/10.1103/physreve.58.2047
https://doi.org/10.1103/physreve.58.2047
Publikováno v:
Zeitschrift für Physik B Condensed Matter. 100:477-488
The formation of oblique rolls in nematic liquid crystals driven by dichotomous stochastic fields is investigated in the frame of a one-dimensional linear theory including the flexoeffect, and in the frame of a threedimensional linear theory with fre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e722677f93a853cd83daf6df7d6e98bf
https://doi.org/10.1007/s002570050150
https://doi.org/10.1007/s002570050150
Publikováno v:
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals. 304:525-530
We describe the influence of superimposed deterministic and stochastic electric fields on electrohydrodynamic convection in nematics. Multiplicative noise leads to complex spatio-temporally fluctuating patterns. We measure the thresholds for the onse
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ab4548c1a374252a267d779561e752ee
https://doi.org/10.1080/10587259708047004
https://doi.org/10.1080/10587259708047004
Autor:
Ulrich Behn, Alexander Düring
Publikováno v:
Physics Letters A. 230:177-182
We propose a novel extension of Pyragas' method to stabilise arbitrarily long unstable periodic orbits (UPOs) in chaotic systems. No restrictions are imposed on the dimensionality of the chaotic attractor and the system is sampled using time series o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::242211a01cc0f091b7b6d550345acae2
https://doi.org/10.1016/s0375-9601(97)00237-5
https://doi.org/10.1016/s0375-9601(97)00237-5