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Jan-Maarten Luursema
  • Male
  • Utrecht
  • Netherlands
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Jan-Maarten Luursema's Page

Latest Activity

Naohisa Sugimoto liked Jan-Maarten Luursema's video
Apr 6
Alexander Ludlam liked Jan-Maarten Luursema's video
Mar 26
Jan-Maarten Luursema liked Hans-Günther Döbereiner's video
Mar 24
Jan-Maarten Luursema posted a status
"My slime mold housemate is on loan to Breda's city museum. Here it is answering audience questions: https://vimeo.com/258507463"
Mar 4
Jan-Maarten Luursema commented on Jan-Maarten Luursema's video
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Anditalks-01A

"Yeah.. I am working clean, but by no means sterile. There's probably all kinds of things growing on and between the oats to supplement it's diet. Do you know the temperature at which the oat proteins denature?"
Feb 16
Derndorfer commented on Jan-Maarten Luursema's video
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Anditalks-01A

"okey, interesting. I had bad experiences with oatmeal because during autoclaving proteins in the oatmeal solution denaturated and were unsoluble. not ideal for the slime mould. but yours looking fine :)"
Feb 15
Jan-Maarten Luursema commented on Jan-Maarten Luursema's video
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Anditalks-01A

"Actually oatmeal, so ground oats. About 1:5 oatmeal to water in weight, then short blasts in the microwave with stirring in between until the consistency is a bit thicker than yogurt."
Feb 15
Derndorfer commented on Jan-Maarten Luursema's video
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Anditalks-01A

"oh, so you cooked oat flakes with a little bit of water? "
Feb 15
Jan-Maarten Luursema commented on Jan-Maarten Luursema's video
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Anditalks-01A

"Thx! The dots are just drops of oatmeal porridge, laid down with a syringe"
Feb 15
Derndorfer commented on Jan-Maarten Luursema's video
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Anditalks-01A

"nice :D what where the round shaped food source?"
Feb 15
Jan-Maarten Luursema commented on ian's photo
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actin Maximum intensity projection

"Awesome! Are these fibers involved in locomotion; do they contract?"
Jan 24
Jan-Maarten Luursema liked ian's photo
Jan 24
Jan-Maarten Luursema commented on David Blondell's blog post My First Post - And I Am Immediately Confused - Looking For Any Input On These Specimens, As well As More Comprehensive Reading Materials
"My 'berries' fall within the Audubon range.. have you tried mycobank or encyclopedia of life? -> http://www.eol.org/pages/16850/overview"
Jan 12
Jan-Maarten Luursema commented on David Blondell's blog post My First Post - And I Am Immediately Confused - Looking For Any Input On These Specimens, As well As More Comprehensive Reading Materials
"Hi David, your blackberries look a lot like they might be fruiting bodies of Polycephalum Physarum, workhorse of slime mold science. I'm including a (somewhat blurry, sorry about that) picture I took of similar structures in my terrarium (the…"
Jan 12
Jan-Maarten Luursema posted a status
"Slime mold Andi interacts with Hope from Chicago ->…"
Jan 10
Jan-Maarten Luursema replied to Kornelija's discussion Slime mold living conditions ( food, temperature, wetness,agar)
"I grow Ph. Polycephalum at room temperature, but it will grow at lower temperatures just fine, just slower.. if I were in the opportunity to provide a specific temperature, I would look at the geographical distribution and life cycles of these…"
Jan 4

Profile Information

Name
Jan-Maarten
Interest in slime moulds
I think slime molds are awesome, for all the obvious reasons. I am doing projects with a sample of Physarum Polycephalum (notions of individuality do not seem to apply to these organisms, and I prefer to think of it as a single worldwide organism). I love to learn and share.
Academic Institution (if applicable)
Radboud UMC
Website
http://github.com/J4n-M44rt3n/J4n-M44rt3n_github.io/blob/master/_po...
Contact (optional)
jan.maarten@yahoo.com

Jan-Maarten Luursema's Videos

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Jan-Maarten Luursema's Blog

Christmas special

Posted on December 26, 2017 at 16:20 0 Comments

My slime mold housemate and I did a Christmas special, for your entertainment. Happy holidays!

Slime mold Andi on Medium

Posted on November 21, 2017 at 19:39 0 Comments

Using an oatmeal-laden Ouija board, I am having a very slow conversation with our live-in slime mold Andi. I started a record of these back and forths on Medium. Anyone interested can join the conversation, here's how!…

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On enclosures

Posted on July 24, 2017 at 21:00 2 Comments

When I started to work with P. Polycephalum I build an elevated, acrylate enclosure that allowed me to slip pieces of paper underneath to help me create designs of oatmeal, along the lines of the famous Tokyo subway experiment. It looked like this:…

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Substrate experiment

Posted on July 22, 2017 at 11:00 2 Comments

To curb Physarum Polycephalum's (for convenience known as Andi in our household) tendency to wander, I have used a 'moat', a ring of high-salt agar around its standard agar living area. This works fine, only is somewhat labor intensive to maintain and also harms Andi, who keeps burning itself trying to go where no slime mold went before.



I experimented with four alternative substrates to replace the salty agar: 1. felt, thinking this would interfere with its creeping motion; 2.…

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