https://popups.uliege.be/3041-539x/index.php?id=1496 Index terms fr 0 https://popups.uliege.be/3041-539x/index.php?id=3108 We consider here the problem of imaging the iterons of automata. These are discrete counterparts of localized coherent structures from continues dynamical systems. Iterons emerge during iterated automata mappings performed over strings. They consist of filtrons (in serial processing) and particles (in cellular processing). The main problem with the visualization of iterons is their spreading over a medium that they propagate through. We propose here a solution to this problem, both for filtrons and particles; we identify M-segments or G-segments, respectively, which are determined by the activity of the underlying automata. Then we present various types of ST diagrams. Also, we present the new idea of embedding the observer into processing space. This entails the perceiving an event in various ways depending on the position of local observer (e.g. Doppler's effect). We showt hat Conway's glider (of basic period p = 4) in game of life cellular automaton can be seen as either p = 3 or p = 5 object depending on observer. Mon, 09 Sep 2024 09:23:47 +0200 Mon, 09 Sep 2024 09:23:59 +0200 https://popups.uliege.be/3041-539x/index.php?id=3108 https://popups.uliege.be/3041-539x/index.php?id=2906 Recently some investigations on model of cellular automata (game 'Life') with anticipation ('LifeA') had been developed with accounting anticipatory properties, which indicate some interesting types of behavior of such cellular automata. One of new aspect is appearance of multiple solutions of cellular automata. The considering of such solutions follows to attempts of remembering and refreshing some concepts considered by D. M. Dubois, and collecting a list of some existing issues for further detailed considerations and implementation of such concepts, especially of hyperincursion. Tue, 03 Sep 2024 15:45:58 +0200 Tue, 03 Sep 2024 15:46:06 +0200 https://popups.uliege.be/3041-539x/index.php?id=2906 https://popups.uliege.be/3041-539x/index.php?id=1492 In vitro tests are very useful tools to assess the carcinogenic effects of chemicals and the effectiveness of drugs and chemopreventive agents. A cellular automata model of the birth of so-called transformation foci is presented here, based upon biological knowledge about the process of cell transformation, which is the in vitro analogue of tumor formation. The model describes the dynamics of the process, and it provides indications concerning the dependence of the number of foci upon the number of cells that have been initially seeded. It is shown that the model can account for known experimental data ; moreover, different model versions lead to different scaling behaviours, which seem compatible with the results obtained by using different experimental protocols. This line of research appears therefore able to provide useful information to interprete the results of in vitro tests, and to suggest further experiments. Fri, 12 Jul 2024 15:24:00 +0200 Fri, 12 Jul 2024 15:24:10 +0200 https://popups.uliege.be/3041-539x/index.php?id=1492