Items 41-50 of 426
Switching to criticality by synchronized input
Guiding Synchrony through Random Networks
Sparse random networks contain structures that can be considered as diluted feed-forward networks. Modeling of cortical circuits has shown that feed-forward structures, if strongly pronounced compared to the embedding ...
Representation of dynamical stimuli in threshold neuron models
Histone H1 Subtypes Differentially Modulate Chromatin Condensation without Preventing ATP-Dependent Remodeling by SWI/SNF or NURF
Although ubiquitously present in chromatin, the function of the linker histone subtypes is partly unknown and contradictory studies on their properties have been published. To explore whether the various H1 subtypes have ...
Bioenergy Villages and Regions in Germany: An Interview Study with Initiators of Communal Bioenergy Projects on the Success Factors for Restructuring the Energy Supply of the Community
Because of the serious problems related to an energy supply based mainly on fossil and nuclear fuels, the development of renewable energy sources is urgently needed. In Germany, many villages and communities take energy ...
A Sensor-Based Learning Algorithm for the Self-Organization of Robot Behavior
Ideally, sensory information forms the only source of information to a robot. We consider an algorithm for the self-organization of a controller. At short time scales the controller is merely reactive but the parameter ...
NF-Y Dependent Epigenetic Modifications Discriminate between Proliferating and Postmitotic Tissue
The regulation of gene transcription requires posttranslational modifications of histones that, in concert with chromatin remodeling factors, shape the structure of chromatin. It is currently under intense investigation ...
Onset Dynamics of Action Potentials in Rat Neocortical Neurons and Identified Snail Neurons: Quantification of the Difference
The generation of action potentials (APs) is a key process in the operation of nerve cells and the communication between neurons. Action potentials in mammalian central neurons are characterized by an exceptionally fast ...
Spike avalanches in vivo suggest a driven, slightly subcritical brain state.
In self-organized critical (SOC) systems avalanche size distributions follow power-laws. Power-laws have also been observed for neural activity, and so it has been proposed that SOC underlies brain organization as well. ...
Structural and functional analysis of the human spliceosomal DEAD-box helicase Prp28.
The DEAD-box protein Prp28 is essential for pre-mRNA splicing as it plays a key role in the formation of an active spliceosome. Prp28 participates in the release of the U1 snRNP from the 5'-splice site during association ...