Emerging evidence indicates that the global organization of the bacterial chromosome is defined by its physical map. This architectural understanding has been gained mainly by observing the localization and dynamics of specific chromosomal loci. However, the spatial and temporal organization of the entire mass of newly synthesized DNA remains elusive. To visualize replicated DNA within living c...

Two studies investigated flexibility in children's use of spatial and categorical clustering strategies in recall. In Study 1, 10-, 12-, 14-, and 16-year-olds and adults recalled the furniture from their home. Ten-year-olds organized furniture categorically, and 16-year-olds and adults organized items spatially. Twelveand 14-year-olds exhibited equal levels of spatial and categorical organizati...

In bacteria such as Escherichia coli, DNA is compacted into a nucleoid near the cell center, whereas ribosomes-molecular complexes that translate mRNAs into proteins-are mainly localized to the poles. We study the impact of this spatial organization using a minimal reaction-diffusion model for the cellular transcriptional-translational machinery. Although genome-wide mRNA-nucleoid segregation s...

für Naturforschung in cooperation with the Max Planck Society for the Advancement of Science under a Creative Commons Attribution 4.0 International License. Dieses Werk wurde im Jahr 2013 vom Verlag Zeitschrift für Naturforschung in Zusammenarbeit mit der Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V. digitalisiert und unter folgender Lizenz veröffentlicht: Creative Commons Namen...

We have developed a self-organizing shape formation system based on locally interacting agents whose behaviors are inspired by living cells. Given a predefined macroscopic shape, genetic programming is used to find a finite field function that defines the agents’ interactions. By following the gradient of the cumulative field the agents form into a desired shape. It has been seen that the self-...

The aim of this paper is to explore the spatial organization of neural networks under Markovian assumptions, in what concerns the behaviour of individual cells and the interconnection mechanism. Spaceorganizational properties of neural nets are very relevant in image modeling and pattern analysis, where spatial computations on stochastic two-dimensional image fields are involved. As a first app...

Miniaturized, wirelessly networked embedded systems combined with Peer-to-Peer computing principles have started to pervade into objects of everyday use, like tools, appliances or the environment, thus implementing ensembles of autonomous, interacting “networked things”. With the development of the Peer-it framework, integrating a self-contained, miniaturized, universal and scalable embedded sy...

The development and maintenance of the many different cell types in metazoan organisms requires robust and diverse intercellular communication mechanisms. Relatively few such signaling pathways have been identified, leading to the question of how such a broad diversity of output is generated from relatively simple signals. Recent studies have revealed complex mechanisms integrating temporal and...

Spatial self-organizations appear in many natural and artificial systems. Spatial systems creation and development, called morphogenesis, is the subject of many research studies since many years (1). Fractal computation approach is, for exemple, one of the methods proposed to deal with such studies. But, even if this method is able to describe unlimited local formations on multi-scale descripti...

Functional and structural changes of regional system are ongoing spatial changes that form patterns of spatial organization, depending on dominant regional forces and factors. Spatial structure of West Azerbaijan province experienced significant changes during 15 years; thus, the present research aim to investigate the manner of spatial distribution of two variables of population and activity, ...