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Taxi - movement of bacteria to the food 1.0
File ID: 79459






Taxi - movement of bacteria to the food 1.0
Download Taxi - movement of bacteria to the food 1.0http://www.mathworks.comReport Error Link
License: Freeware
File Size: 20.5 KB
Downloads: 16
Submit Rating:
Taxi - movement of bacteria to the food 1.0 Description
Description: How do bacteria find their way to the food ? many biological systems use the chemo-taxis algorithm to improve their conditions and hence, their chance to survive. Chemo-taxis in general refers to movement influenced by chemical properties of the medium. In this model, we have a group of independent cells in 2-dimensions. Each cell moves in a straight line in random orientation until it tumbles. When it tumbles, the cell gets a new and random direction for propagation, independent of the past. Tumbles occur in some rate of events per unit time. The cell can regulate its tumbling-rate. Furthermore, the cell can detect and remeber local food concentartion. The chemo-taxis algorithm is as follows: If the cell detects a positive change in food concentartion (the cell is happy) - it lowers the tumbling-rate (less tumbles per second, movement in longer straight lines). If the cell detects a negative change in food concentration (the cell is sad) - it raises the tumbling-rate. If the cell detects no change in food concentration - the tumbling rate returns to some default, normal value of tumbling-rate (this is the adaptation mechanism).
http://www.weizmann.ac.il/mcb/UriAlon/

License: Freeware

Related: concentartion, Local, detects, Change, positive, remeber, Detect, occur, tumbles, Events, regulate, tumblingrate, happy, lowers, default, returns, normal

O/S:BSD, Linux, Solaris, Mac OS X

File Size: 20.5 KB

Downloads: 16



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