نتایج جستجو برای: cellular process

تعداد نتایج: 1617994  

2013
ZHIKUN WANG

Considering attraction of the nearest exit, repulsive force of the fire, barrier and its display style, effect of fire exit location on escape time in fire hazard, a mathematical model of evacuation process model was build based on cellular automatic theory. The program was developed by JavaScript. The influencing factors of evacuation were obtained through the simulation model by inputting cre...

1999
Marcel Kružel Ivo Vondrák Roman Szturc

One of common approaches to process specification is based on centralized monolithic process model with hierarchical structure. Most significant disadvantage of such an approach is that changes in such a model cannot be made easily. The content of this paper describes different approach to process modeling. The process model can be assembled from relatively small process units (process cells). ...

Journal: :Plant physiology 1986
A M Tomson R Demets C A Sigon D Stegwee H van den Ende

A method to determine the mating competence of Chlamydomonas eugametos was developed. The contribution of each mating type in the pair formation was investigated using asymmetric gamete mixtures. It was established that pair formation is not mediated by a pheromonal attraction mechanism between partner gametes, but depends on collision chances. On the other hand, it was demonstrated that during...

Journal: :The Journal of Experimental Medicine 1968
Herbert J. Shulman Karl Meyer

Primary cell cultures of differentiated chondrocytes were shown to produce chondroitin-4-sulfate as the predominant mucopolysaccharide, with suggestive evidence for the synthesis of keratan sulfate and possibly chondroitin-6-sulfate. Chicken embryonic cartilage was shown to be composed mainly of chondroitin-4-sulfate, with a small amount of chondroitin-6-sulfate, but essentially no keratan sulf...

Journal: :Studies in history and philosophy of science 1996
D Allchin

AMONG THE fantastic creatures that Homer described in the Iliad is the chimera, a fire-breathing monster with the head of a lion, the body of a goat and the tail of a serpent. Biologically, the chimera is unimaginable-a quintessentially mythical creature. Yet as an improbable hybrid, it also served as a model for naming another, very real product of cellular biochemistry in the 1970s. Using a d...

2003
Anton Schwaighofer Marian Grigoras Volker Tresp Clemens Hoffmann

In this article, we present a novel approach to solving the localization problem in cellular networks. The goal is to estimate a mobile user’s position, based on measurements of the signal strengths received from network base stations. Our solution works by building Gaussian process models for the distribution of signal strengths, as obtained in a series of calibration measurements. In the loca...

2006
Francisco J. Romero-Campero Marian Gheorghe Gabriel Ciobanu John M. Auld Mario J. Pérez-Jiménez

In this paper various molecular chemical interactions are modelled under different computational paradigms. P systems and π-calculus are used to describe intra-cellular reactions like protein-protein interactions and gene regulation control.

2013
Zhikun Wang

Considering attraction of the nearest exit, repulsive force of the fire, barrier and its display style, effect of fire exit location on escape time in fire hazard, a mathematical model of evacuation process model was build based on cellular automatic theory. The program was developed by JavaScript. The influencing factors of evacuation were obtained through the simulation model by inputting cre...

2011
JEAN-FRANÇOIS DELMAS LAURENCE MARSALLE

We consider the bifurcating Markov chain model introduced by Guyon to detect cellular aging from cell lineage. To take into account the possibility for a cell to die, we use an underlying Galton-Watson process to describe the evolution of the cell lineage. We give in this more general framework a weak law of large number, an invariance principle and thus fluctuation results for the average over...

Arshi, A., Dehghani-Samani, M., Fadaei, M., Hashemzehi, R., Jamshidian, H., Mahmoudi, E., Noshadi, E.,

Abstract Background and Objectives Mitochondrial biogenesis is a complex process involving the coordinated expression of mitochondrial and nuclear genes, the import of the products of the latter into the organelle and turnover of this process. Mitochondrial malfunction or defects in any of the many pathways involved in mitochondrial biogenesis can lead to degenerative diseases and possibly pla...

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