Results 21 to 30 of about 3,956,385 (292)

Reduced-order modelling of parametric systems via interpolation of heterogeneous surrogates

open access: yesAdvanced Modeling and Simulation in Engineering Sciences, 2019
This paper studies parametric reduced-order modeling via the interpolation of linear multiple-input multiple-output reduced-order, or, more general, surrogate models in the frequency domain.
Yao Yue, Lihong Feng, Peter Benner
doaj   +1 more source

Complex network analysis and nonlinear dynamics [PDF]

open access: yes, 2016
This chapter aims at reviewing complex network and nonlinear dynamical models and methods that were either developed for or applied to socioeconomic issues, and pertinent to the theme of New Economic Geography. After an introduction to the foundations
Rotundo, Giulia, Varela, Luis M
core   +1 more source

Dynamics of complex interfaces [PDF]

open access: yesPhysical Review E, 1994
Complex interfacial dynamics is studied in an oscillatory medium described by a deterministic coupled-map lattice. This dynamical system supports only stable periodic attractors. The interfaces that separate the stable homogeneous phases exhibit different types of behavior ranging from simple planar fronts with low periodicity to highly irregular ...
R. Kapral   +3 more
openaire   +4 more sources

Modeling the electron transport chain of purple non‐sulfur bacteria

open access: yesMolecular Systems Biology, 2008
Purple non‐sulfur bacteria (Rhodospirillaceae) have been extensively employed for studying principles of photosynthetic and respiratory electron transport phosphorylation and for investigating the regulation of gene expression in response to redox ...
Steffen Klamt   +4 more
doaj   +1 more source

Structure and dynamics of the E. coli chemotaxis core signaling complex by cryo-electron tomography and molecular simulations [PDF]

open access: yes, 2020
To enable the processing of chemical gradients, chemotactic bacteria possess large arrays of transmembrane chemoreceptors, the histidine kinase CheA, and the adaptor protein CheW, organized as coupled core-signaling units (CSU). Despite decades of study,
Cassidy, Keith   +8 more
core   +1 more source

On the complexity of dynamic submodular maximization

open access: yesProceedings of the 54th Annual ACM SIGACT Symposium on Theory of Computing, 2022
We study dynamic algorithms for the problem of maximizing a monotone submodular function over a stream of $n$ insertions and deletions. We show that any algorithm that maintains a $(0.5+ε)$-approximate solution under a cardinality constraint, for any constant $ε>0$, must have an amortized query complexity that is $\mathit{polynomial}$ in $n ...
Xi Chen 0001, Binghui Peng
openaire   +2 more sources

Production of Defective Interfering Particles of Influenza A Virus in Parallel Continuous Cultures at Two Residence Times—Insights From qPCR Measurements and Viral Dynamics Modeling

open access: yesFrontiers in Bioengineering and Biotechnology, 2019
Defective interfering particles (DIPs) are a natural byproduct of influenza A virus (IAV) replication. DIPs interfere with the propagation and spread of infectious standard virus (STV), reduce virus yields by competing for viral and cellular resources ...
Felipe Tapia   +6 more
doaj   +1 more source

Dynamics and Complexity of Computrons [PDF]

open access: yesEntropy, 2020
We investigate chaoticity and complexity of a binary general network automata of finite size with external input which we call a computron. As a generalization of cellular automata, computrons can have non-uniform cell rules, non-regular cell connectivity and an external input. We show that any finite-state machine can be represented as a computron and
openaire   +3 more sources

Complexity and Dynamical Depth [PDF]

open access: yesInformation, 2014
We argue that a critical difference distinguishing machines from organisms and computers from brains is not complexity in a structural sense, but a difference in dynamical organization that is not well accounted for by current complexity measures.
Terrence Deacon, Spyridon Koutroufinis
openaire   +2 more sources

Combining functional metagenomics and glycoanalytics to identify enzymes that facilitate structural characterization of sulfated N-glycans

open access: yesMicrobial Cell Factories, 2021
Background Sulfate modification of N-glycans is important for several biological functions such as clearance of pituitary hormones or immunoregulation.
Léa Chuzel   +8 more
doaj   +1 more source

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