Results 41 to 50 of about 100,931 (277)

Self-Organized Criticality with Complex Scaling Exponents in the Train Model

, 1997
The train model which is a variant of the Burridge-Knopoff earthquake model is investigated for a velocity-strengthening friction law. It shows self-organized criticality with complex scaling exponents.
Elmer, Franz-Josef
core   +1 more source

Mapping the evolution of mitochondrial complex I through structural variation

FEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source

Spike Pattern Structure Influences Synaptic Efficacy Variability Under STDP and Synaptic Homeostasis. II: Spike Shuffling Methods on LIF Networks

Frontiers in Computational Neuroscience, 2016
Synapses may undergo variable changes during plasticity because of the variability of spike patterns such as temporal stochasticity and spatial randomness.
Zedong Bi, Changsong Zhou
doaj   +1 more source

Similarity and Probability Distribution Functions in Many-body Stochastic Processes with Multiplicative Interactions

, 2005
Analytical and numerical studies on many-body stochastic processes with multiplicative interactions are reviewed. The method of moment relations is used to investigate effects of asymmetry and randomness in interactions.
Fujihara, Akihiro, Ohtsuki, Toshiya, Yamamoto, Hiroshi   +2 more
core   +1 more source

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

FEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka, Yuxi Liu, Stefano Maggi, Debnath Ghosal, Jue Wang, Prashant P. Damke, Stephen D. Carter, Wei Zhao, Sukhithasri Vijayrajratnam, Joseph P. Vogel, Carrie L. Shaffer, Grant J. Jensen   +11 more
wiley   +1 more source

Spatial Dispersion and Statistical Description of Organized Cumulus Cloud Ensembles in Radiative Convective Equilibrium

Journal of Advances in Modeling Earth Systems
Descriptions of cloud ensembles in radiative convective equilibrium (RCE) rely mostly on the assumption that clouds are randomly distributed in space, a hypothesis that obviously fails in presence of strong organization.
J. Savre
doaj   +1 more source

THE USE OF GEOGRAPHIC INFORMATION SYSTEMS IN SELECTING THE MOST SUITABLE SITES FOR TOURISM PROJECTS IN EL DRIOUCH (NORTHEASTERN MOROCCO) [PDF]

Geo Journal of Tourism and Geosites
This study explores the potential of using Geographic Information Systems (GIS) in spatial analysis to identify the most suitable locations for establishing tourism projects in the Driouch Province.
Elkallouchi MOHAMED, Bouguelba SMAIL
doaj   +1 more source

Order out of Randomness : Self-Organization Processes in Astrophysics

, 2017
Self-organization is a property of dissipative nonlinear processes that are governed by an internal driver and a positive feedback mechanism, which creates regular geometric and/or temporal patterns and decreases the entropy, in contrast to random ...
Abramenko, Valentina, Aschwanden, Markus J., Benz, Arnold, Bethune, William, Chernov, Guennadi, Cheung, Mark, Green, William, Kritsuk, Alexei G., Kurths, Juergen, Melatos, Andrew, Mueller, Daniel, Scargle, Jeffrey D., Schmutz, Werner, Scholkmann, Felix, Trimble, Virginia, Wagoner, Robert V.   +15 more
core   +1 more source

Guiding the self-organization of random Boolean networks [PDF]

Theory in Biosciences, 2011
15 pages, 3 figures, expanded ...
openaire   +3 more sources

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

FEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li, Pedro A. Sánchez‐Murcia, Bernd Nidetzky   +2 more
wiley   +1 more source