GMU:Habitats SS18/Physarum Polycephalum - Revision history

Julian mikroBIOMIK.org: /* Physarum Polycefalum */

2019-02-08T00:35:56Z

Physarum Polycefalum

← Older revision		Revision as of 00:35, 8 February 2019
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	3-5 min @ Heather Barnett: What humans can learn from semi-intelligent slime https://www.youtube.com/watch?v=2UxGrde1NDA		3-5 min @ Heather Barnett: What humans can learn from semi-intelligent slime https://www.youtube.com/watch?v=2UxGrde1NDA

	==Physarum ~~Polycefalum~~==		==Physarum Polycephalum==
	“Slime mold is an informal name given to several kinds of unrelated eukaryotic organisms that can live freely as single cells, but aggregate together to form multicellular reproductive structures.”(Wikipedia a) Slime molds belong to Protista, that is neither animal, nor fungi nor bacteria. They feed on microorganisms. “When food is in short supply, many of these single-celled organisms will congregate and start moving as a single body. In this state they are sensitive to airborne chemicals and can detect food sources. They can readily change the shape and function of parts and may form stalks that produce fruiting bodies, releasing countless spores”(Wikipedia a)		“Slime mold is an informal name given to several kinds of unrelated eukaryotic organisms that can live freely as single cells, but aggregate together to form multicellular reproductive structures.”(Wikipedia a) Slime molds belong to Protista, that is neither animal, nor fungi nor bacteria. They feed on microorganisms. “When food is in short supply, many of these single-celled organisms will congregate and start moving as a single body. In this state they are sensitive to airborne chemicals and can detect food sources. They can readily change the shape and function of parts and may form stalks that produce fruiting bodies, releasing countless spores”(Wikipedia a)

Miga: /* References */

2018-07-11T17:08:40Z

References

← Older revision		Revision as of 17:08, 11 July 2018
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	== References ==		== References ==
	* Barnett, H. (2017). Many-Headed: Co-creation across Scales and Species. Available at https://www.youtube.com/watch?v=bp-j0TEXvig (Accessed: 28 April 2018)
	* Whiting, J. (2013). "Towards slime mould chemical sensor: Mapping chemical inputs onto electrical potential dynamics of Physarum Polycephalum." Available at https://arxiv.org/pdf/1312.4189.pdf (Accessed: 25 April 2018)		* Whiting, J. (2013). "Towards slime mould chemical sensor: Mapping chemical inputs onto electrical potential dynamics of Physarum Polycephalum." Available at https://arxiv.org/pdf/1312.4189.pdf (Accessed: 25 April 2018)
	* Wikipedia (a). Slime mold. Available at: https://en.wikipedia.org/wiki/Slime_mold (Accessed 6 December 2016).		* Wikipedia (a). Slime mold. Available at: https://en.wikipedia.org/wiki/Slime_mold (Accessed 6 December 2016).

Miga: /* References */

2018-04-28T09:18:42Z

References

← Older revision		Revision as of 09:18, 28 April 2018
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	== References ==		== References ==
	* Whiting, J. (2013) "Towards slime mould chemical sensor: Mapping chemical inputs onto electrical potential dynamics of Physarum Polycephalum." Available at https://arxiv.org/pdf/1312.4189.pdf (Accessed: 25 April 2018)		* Barnett, H. (2017). Many-Headed: Co-creation across Scales and Species. Available at https://www.youtube.com/watch?v=bp-j0TEXvig (Accessed: 28 April 2018)
			* Whiting, J. (2013). "Towards slime mould chemical sensor: Mapping chemical inputs onto electrical potential dynamics of Physarum Polycephalum." Available at https://arxiv.org/pdf/1312.4189.pdf (Accessed: 25 April 2018)
	* Wikipedia (a). Slime mold. Available at: https://en.wikipedia.org/wiki/Slime_mold (Accessed 6 December 2016).		* Wikipedia (a). Slime mold. Available at: https://en.wikipedia.org/wiki/Slime_mold (Accessed 6 December 2016).
	* Wikipedia (b). Physarum polycephalum. Available at: https://en.wikipedia.org/wiki/Physarum_polycephalum (Accessed 8 December 2015).		* Wikipedia (b). Physarum polycephalum. Available at: https://en.wikipedia.org/wiki/Physarum_polycephalum (Accessed 8 December 2015).

Miga: /* James Whitting, Ben De Lacy Costello, Andrew Adamatzky */

2018-04-25T15:43:35Z

James Whitting, Ben De Lacy Costello, Andrew Adamatzky

← Older revision		Revision as of 15:43, 25 April 2018
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	=== James ~~Whitting~~, Ben De Lacy Costello, Andrew Adamatzky ===		=== James Whiting, Ben De Lacy Costello, Andrew Adamatzky ===
	Sonification		Sonification

Miga: /* Unconventional Computing and Physarum Machine */

2018-04-25T14:57:35Z

Unconventional Computing and Physarum Machine

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 * [http://arxiv.org/pdf/cs/0703128.pdf Implementation of a Kolmogorov–Uspensky machine on a biological substrate. (Adamatzky 2007)]
 * [http://arxiv.org/pdf/0901.4556v1.pdf Programmable reconfiguration of Physarum machines (Adamatzky 2009)]
 == References ==

Miga: /* Markov chain */

2018-04-25T14:50:53Z

Markov chain

← Older revision		Revision as of 14:50, 25 April 2018
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	=== Markov chain ===		=== Markov chain ===
	"A Markov chain (discrete-time Markov chain or DTMC[1]), named after Andrey Markov, is a random process that undergoes transitions from one state to another on a state space. It must possess a property that is usually characterized as "memorylessness": the probability distribution of the next state depends only on the current state and not on the sequence of events that preceded it. This specific kind of "memorylessness" is called the Markov property. Markov chains have many applications as statistical models of real-world processes."(wikipedia ~~(b)~~)		"A Markov chain (discrete-time Markov chain or DTMC[1]), named after Andrey Markov, is a random process that undergoes transitions from one state to another on a state space. It must possess a property that is usually characterized as "memorylessness": the probability distribution of the next state depends only on the current state and not on the sequence of events that preceded it. This specific kind of "memorylessness" is called the Markov property. Markov chains have many applications as statistical models of real-world processes."(wikipedia)

	=== Kolmogorov Machine ===		=== Kolmogorov Machine ===

Miga: /* Medium */

2018-04-25T14:48:34Z

Medium

← Older revision		Revision as of 14:48, 25 April 2018
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	*1,7% agar plate		*1,7% agar plate
	*oat flakes		*oat flakes

			====Medium replacement====
			Instead of oat flakes two other recipes: a) 2,5g agar, 200ml distilled water, 1,5g peptone (lactose) b) 1g agar, 5g cooked (for 2 min) oat flakes in 100ml water. Medium could be placed either on top of agar as droplets or instead of agar.

	==Unconventional Computing and Physarum Machine ==		==Unconventional Computing and Physarum Machine ==

Miga: /* References */

2018-04-25T14:26:25Z

References

← Older revision		Revision as of 14:26, 25 April 2018
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	== References ==		== References ==
			* Whiting, J. (2013) "Towards slime mould chemical sensor: Mapping chemical inputs onto electrical potential dynamics of Physarum Polycephalum." Available at https://arxiv.org/pdf/1312.4189.pdf (Accessed: 25 April 2018)
	* Wikipedia (a). Slime mold. Available at: https://en.wikipedia.org/wiki/Slime_mold (Accessed 6 December 2016).		* Wikipedia (a). Slime mold. Available at: https://en.wikipedia.org/wiki/Slime_mold (Accessed 6 December 2016).
	* Wikipedia (b). Physarum polycephalum. Available at: https://en.wikipedia.org/wiki/Physarum_polycephalum (Accessed 8 December 2015).		* Wikipedia (b). Physarum polycephalum. Available at: https://en.wikipedia.org/wiki/Physarum_polycephalum (Accessed 8 December 2015).

Miga: /* Physarum Polycefalum */

2018-04-25T14:25:42Z

Physarum Polycefalum

← Older revision		Revision as of 14:25, 25 April 2018
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	"Physarum polycephalum, literally the "many-headed slime", is a slime mold that inhabits shady, cool, moist areas, such as decaying leaves and logs. Like slime molds in general, it is sensitive to light; in particular, light can repel the slime mold and be a factor in triggering spore growth."(wikipedia b) It feeds on bacteria, spores and other microbial creatures.		"Physarum polycephalum, literally the "many-headed slime", is a slime mold that inhabits shady, cool, moist areas, such as decaying leaves and logs. Like slime molds in general, it is sensitive to light; in particular, light can repel the slime mold and be a factor in triggering spore growth."(wikipedia b) It feeds on bacteria, spores and other microbial creatures.

			===chemotaxis===
			"..In the plasmodial phase of its life cycle consists of a large single celled mass of yellow plasmodium. The organism extends protoplasmic tubes which grow towards sources of food; flowing through these tubes is a cytoplasm, which oscillates back and forth by a process of protoplasmic streaming which forces the cytoplasm in the direction in which the organism is growing [1]. The movement and growth of P. polycephalum is predominantly controlled by favourable conditions, such as an abundance of food, warm temperature, darkness and moisture. It has been well documented that various substances trigger a chemotactic response in P. polycephalum, various carbohydrates such as glucose and maltose initiate positive chemotaxis while sucrose shows marginal but consistent negative chemotaxis [2, 3, 4, 5]." (Whiting 2013)

	===life cycle===		===life cycle===

Miga: /* Physarum Machine */

2018-04-25T08:35:36Z

Physarum Machine

← Older revision		Revision as of 08:35, 25 April 2018
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	*oat flakes		*oat flakes

	== Physarum Machine ==		==Unconventional Computing and Physarum Machine ==
	"Unconventional computing is an interdisciplinary branch of science where computer scientists, physicists, mathematicians, apply principles of information processing in natural systems to design novel computer devices and architectures" (Adamatzky 2007)		"Unconventional computing is an interdisciplinary branch of science where computer scientists, physicists, mathematicians, apply principles of information processing in natural systems to design novel computer devices and architectures" (Adamatzky 2007)