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Juxi Leitner

Restoring Voluntary Control of Locomotion after Paralyzing Spinal Cord Injury - 1 views

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    Edu!!!
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    evviva, ACT neurosciences score again :)
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    Wow, a science paper! Fantastic! Congratulations!
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    Respect. Would that be the first "scienture" paper from ACT member?
pandomilla

ScienceShot: Unraveling the Mystery of Self-Planting Seeds - ScienceNOW - 0 views

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    ...I told you we had to hurry up with our Ariadna! btw, they studied the coiling at the cellular level (but I am scared to read the paper to see if there is something left for us..)
LeopoldS

Tests of Parents Are Used to Map Genes of a Fetus - NYTimes.com - 0 views

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    "For the first time, researchers have determined virtually the entire genome of a fetus using only a blood sample from the pregnant woman and a saliva specimen from the father."
LeopoldS

The bonobo genome compared with the chimpanzee and human genomes : Nature : Nature Publ... - 1 views

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    Look at this! Seems that we are as close to the bonobos as we are to the chimpanzees If only we resolved more to their ways of getting rid of stress (sex) more than using the chimpanzees' (aggression)...
LeopoldS

Directed Growth of Silk Nanofibrils on Graphene and Their Hybrid Nanocomposites - ACS M... - 0 views

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    of interest to Tom's project?
pandomilla

Experience teaches plants to learn faster and forget slower in environments where it ma... - 4 views

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    The work of our team on the Mimosa Pudica has been publish! It proves for the first time the ability of plants to learn. After a countless number of rejections, Oecologia had the courage of publishing it. Now the road is open to demonstrations that learning capability exists not only in sensitive plants, but also in normal plants. This can change the entire biology. A bit rhetorical, but real.
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    very nice!!! congratulations! what are you working on now - also on this?
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    I work on some aspects of plant to plant communication! I hope to publish soon something equally exciting!! and of course I will let you know!!
Tom Gheysens

Analysis of salamander jump reveals an unexpected twist - 1 views

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    here is the video - did not really get the mechanism
Tom Gheysens

New genes spring, spread from non-coding DNA - 0 views

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    looks like evolution is getting better and better understood
johannessimon81

Innovative Birds Are Also Less Flexible Learners - 1 views

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    Innovative individuals are less flexible learners while innovative species are also at the same time more flexible.
Tom Gheysens

Fur and feathers keep animals warm by scattering light - 1 views

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    In work that has major implications for improving the performance of building insulation, scientists at the University of Namur in Belgium and the University of Hassan I in Morocco have calculated that hairs that reflect infrared light may contribute significant insulating power to the exceptionally warm winter coats of polar bears and other animals.
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    That's quite interesting. Maybe the future of buildings and spacecraft is furry?
Athanasia Nikolaou

Spray cyanobacteria on the desert to halt its spread - 2 views

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    A wide scale 8 year experiment in China on combating desertification seems to have been successful. Instead of using cyanobacteria blooms in the sea, the tested method proposes to spray them on the boundaries of desert/farmland every few days, so that the carbon they capture stays on the ground. It is useful in fixing the organic material against wind erosion only complementary to planting hardy grasses. Very fast result, nevertheless. Could be classified as a geoengineering activity.
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    130 km2 as next step will be quite an area
Tom Gheysens

First plastic cell with working organelle - 0 views

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    pretty awesome Opens the door to a lot more biomimetic approaches
Tom Gheysens

How electricity helps spider webs snatch prey and pollutants - 0 views

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    interesting article on spider webs as electrostatic catchers. Would be interesting to see if they also catch bacteria by this principle for the cleanrooms at ESA and the ISS... 
Paul N

Sugar battery promises 10 times the energy density of lithium - 1 views

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    intriguing but of little interest for space it seems to me
Beniamino Abis

New Web Structure Found in the Peruvian Amazon - 1 views

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    The strange formation resembles a tiny spire surrounded by a webby picket fence and is about 2 centimeters wide. Apparently nobody knows what it is, but Tom said that it may actually come from a spider (according to the way the web was spun)!
Tom Gheysens

Computing with silicon neurons: Scientists use artificial nerve cells to classify diffe... - 1 views

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    Scientists in Germany are using artificial nerve cells to classify different types of data. These silicon 'neurons' could recognize handwritten numbers, or distinguish plant species based on their flowers.
johannessimon81

A Different Form of Color Vision in Mantis Shrimp - 4 views

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    Mantis shrimp seem to have 12 types of photo-receptive sensors - but this does not really improve their ability to discriminate between colors. Speculation is that they serve as a form of pre-processing for visual information: the brain does not need to decode full color information from just a few channels which would would allow for a smaller brain. I guess technologically the two extremes of light detection would be RGB cameras which are like our eyes and offer good spatial resolution, and spectrometers which have a large amount of color channels but at the cost of spatial resolution. It seems the mantis shrimp uses something that is somewhere between RGB cameras and spectrometers. Could there be a use for this in space?
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    > RGB cameras which are like our eyes ...apart from the fact that the spectral response of the eyes is completely different from "RGB" cameras (http://en.wikipedia.org/wiki/File:Cones_SMJ2_E.svg) ... and that the eyes have 4 types of light-sensitive cells, not three (http://en.wikipedia.org/wiki/File:Cone-response.svg) ... and that, unlike cameras, human eye is precise only in a very narrow centre region (http://en.wikipedia.org/wiki/Fovea) ...hmm, apart from relying on tri-stimulus colour perception it seems human eyes are in fact completely different from "RGB cameras" :-) OK sorry for picking on this - that's just the colour science geek in me :-) Now seriously, on one hand the article abstract sounds very interesting, but on the other the statement "Why use 12 color channels when three or four are sufficient for fine color discrimination?" reveals so much ignorance to the very basics of colour science that I'm completely puzzled - in the end, it's a Science article so it should be reasonably scientifically sound, right? Pity I can't access full text... the interesting thing is that more channels mean more information and therefore should require *more* power to process - which is exactly opposite to their theory (as far as I can tell it from the abstract...). So the key is to understand *what* information about light these mantises are collecting and why - definitely it's not "colour" in the sense of human perceptual experience. But in any case - yes, spectrometry has its uses in space :-)
Tom Gheysens

Blinded by speed, tiger beetles use antennae to 'see' while running -- ScienceDaily - 0 views

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    Speed is blinding. Just ask the tiger beetle: This predatory insect has excellent sight, but when it chases prey, it runs so fast it can no longer see where it's going.
Thijs Versloot

Survival without oxygen, some animals needs surprisingly little - 2 views

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    :-D Tom and me had just exchanged emails about this last night. Fascinating how adaptive organisms can be!
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