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The images represent confocal reconstructions of hippocampal neurons grown on 3D-Scaffold.
The cultures were first immunolabelled for β-tubulin III (in red) in order to visualize the neurons; Glial Fibrillary Acidic Protein (GFAP, in green) to visualize glial cells and DAPI (in blue) for nuclei. The images were acquired using a sophisticated Laser-Scanning Confocal Microscope for viewing samples in 3D, which is not possible in standard microscopes.
The 3D renderings demonstrate that the cells grown on such substrates are capable of migrating and forming connections in all spatial configurations, thus overcoming the constraints imposed by culturing on flat surfaces. The reconstructions are of neurons and glial cells spreading through a thickness of 60-100 micron (consider that the size of neuronal soma is around 10 micron). Using this highly technological approach we were able to appreciate that the cells and their processes were not simply anchored to the scaffold but were in fact navigating the pores present in the 3D-structure.
Myriad stories ran rampant through my neurons as I set up and photographed this image. I thought of vampires and elves, of darkness and light, of Carroll's Alice and Neo's red pills, until I was entirely distracted by trying to get the lighting and focus just so. Still, whenever I look at it, my mind returns to wander the many pathways of what might happen when the girl drinks from the glowing cup. Is she in danger or will it save her? Is she joining a family, a culture, or a cult? Is it poison, wine, dragon's blood, or the red light of a dying star?
I photographed this for an "Art-A-Day Challenge" I participated in early 2012. The theme for the day was Drink. It was a lot of fun to create, though I did manage to half blind myself a couple times shining the light in my eye instead of through the cup! I would love to continue with this concept with a setup that does not involve guess work for positioning and focusing as is the usual for using myself as a model!
You can view the full challenge here.
Please email me if you would like a different size or if you would like greeting cards or another product with this image!
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Neurons have a soma (or cell body) and processes, which are extensions from the soma that receive or carry information. Processes can be diversified as dendrites which receive information or axon which carries information. The axon shown here is covered by insulating sheaths of myelin. (Image credit: "Labeled structure of a neuron" by Chiara Mazzasette is licensed under CC BY-SA 4.0 / A derivative from the original work)
My favourite of the photos of Paul Baker doing the Ice Bucket Challenge for Motor Neuron Disease, probably because of Robbie Love's gleeful expression.
In the absence of environmental cues, the neurites of explanted hippocampal neurons inherently turn to the right when grown on 2D substrates. Tamada et al. show that this is due to the rotation of actin-based filopodia in the neurites’ growth cones. (JCB 188(3) TOC2)
This image is available to the public to copy, distribute, or display under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported license.
Reference: Tamada et al. (2010) J. Cell Biol. 188, 429-441.
Published on: February 8, 2010.
Doi:10.1083/jcb.200906043
Read the full article at:
A cultured hippocampal neuron is stained for the neuronal marker MAP2 (green) and F-actin (red), which preferentially labels dendritic spines. Liu et al. reveal that the cytoplasmic C-terminal domain of Neuroligin 1 promotes synapse formation by binding to spine-associated Rap GTPase-activating protein (SPAR) to induce LIMK1/cofilin-mediated actin reorganization.
Image courtesy of Liu et al.
Reference: See Liu et al.: (2016) J. Cell Biol. 212:449-463
Published on February 15, 2016.
doi: 10.1083/jcb.201509023
Read the full article online at: jcb.rupress.org/content/212/4/449.full
Microscope image of the complex networks established between brain cells grown in the laboratory. The cells labelled green are neurons, which are specialised cells capable of transmitting information throughout the brain. The red cells are astrocytes which support the growth of neurons.
Credit: Declan King (The Roslin Institute, Royal (Dick) School of Veterinary Sciences
Submitted caption:
Bright field image showing the AFM tip probing the biomechanical property of neuron cells in culture.
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This image was submitted to the University of Chicago's 2022 Science as Art competition. From neurons to nanoparticles, the entries display the gorgeous landscape of scientific research going on every day at the University of Chicago. More than 100 images were submitted to the contest, from undergraduates, graduate students, staff, postdoctoral researchers, and faculty members. Read more.
Image may only be reprinted with credit to the authors and the University of Chicago.
Artwork based on nervous system, neurons and neuroglia.
Titled “Neurology” - functioning and disorders of nervous system.
¿ nyur-uh-KANTH-us ? -- Greek: neuron (vein, nerve); ákantha (thorn, spine); spiny vein ... Dave's Botanary
sfay-ro-STAY-kee-us -- sphaero (round, globe shaped); stachyus (flower spikes) ... Dave's Botanary
commonly known as: pin cushion flower • Gujarati: ગંઠેર ganthera • Hindi: पुतलियो putliyo • Kachchhi: ગંઢારો gandharo • Kannada: ಸೂಜಿಮೆತ್ತೆ ಹೂವು sujimette hoovu • Konkani: घोशवे ghoshve • Marathi: घोसवेल ghosvel, गोलगोंडा golgonda
botanical names: Neuracanthus sphaerostachyus (Nees) Dalzell ... homotypic synonyms: Lepidagathis sphaerostachya Nees ... heterotypic synonyms: Neuracanthus lawii Wight ... and more at POWO, retrieved 06 July 2025
NOTE: Orthographic variant: Neuracanthus sphaerostachys (Nees) Dalzell
~~~~~ DISTRIBUTION in INDIA ~~~~~
Goa, Gujarat, Karnataka, Maharashtra, Nagar Haveli, Rajasthan; endemic
Names compiled / updated at Names of Plants in India.
#deepdream code informatique de l'intelligence artificielle de Google spécifique "Fractal DDC " développé et dédié pour un nouvel art à La Demeure du Chaos - The Abode of Chaos ou comment les machines perçoivent La Demeure du Chaos - The Abode of Chaos
et si leurs regards étaient ce qui se cache derrière la matrice que nous percevons en tant qu'humains? ces multiples miroirs sont peut-être un autre monde plus réel ou plus éthéré... NB thierry bonne lecture de ce post et ses images dantesques.
Depuis quelques temps vous avez peut-être vu circuler sur les réseaux sociaux des images étranges, affublées d'un hashtag (mot-clé) #deepdream.
Deep Dream est un programme d'intelligence artificielle mis au point par les ingénieurs de Google. Ces derniers travaillent à la reconnaissance d'images pour, entre autres, améliorer la pertinence des recherches dans Google. Le 17 juin dernier ils ont publié un billet intitulé : "Inceptionnisme : plus loin dans les réseaux neuronaux".
Dans ce post ils expliquent comment ils ont réussi, dans leurs recherches, à faire analyser une image mais surtout générer des formes par l'ordinateur. Pour que l'intelligence artificielle puisse mieux reconnaître ce qui compose une image, les ingénieurs ont commencé par lui montrer des millions de photos.
Plusieurs couches de neurones
L'intelligence artificielle fonctionne ici en un ensemble de réseaux de neurones qu'il faut se figurer comme différentes couches. La première est chargée de regarder les bords et les angles d'une image.
Les couches intermédiaires cherchent quant à elles les formes et les différents éléments présents dans l'image comme une feuille ou une porte. Les derniers réseaux assemblent toutes ces informations pour en fournir des interprétations complexes, comme des arbres ou des bâtiments.
Pour comprendre au mieux comment fonctionnent ces couches, les ingénieurs ont tenté de pousser l'analyse de certaines. Ils résument ainsi la commande faite au système : "Quoi que tu vois, on veut le voir encore plus." C'est alors que l'intelligence artificielle a généré des formes au sein des clichés.
"Si un nuage ressemble un petit peu à un oiseau, alors le système va le faire ressembler encore plus à un oiseau, expliquent les ingénieurs. En réitérant l’action, le programme va reconnaître un oiseau plus fortement et ainsi de suite jusqu’à ce qu’un oiseau très détaillé apparaisse, comme sorti de nulle part."
"L'inceptionnisme"
Les images varient selon le réseau neuronal qui est amplifié. Par exemple, plus on sollicite les couches inférieures, plus des traits vont apparaître. Si on stimule d'avantage les couches supérieures, ce sont des objets qui émergent de l'image.
Les ingénieurs précisent d'ailleurs que comme l'ordinateur a enregistré beaucoup de clichés d'animaux durant son entraînement, il en reproduit souvent. Et parfois en les mixant, ce qui crée des créatures étranges.
Pour ces chercheurs, le Deep Dream a ainsi créé un mouvement artistique qu'ils appellent "l'#inceptionnisme", en référence à l'architecture des réseaux neuronaux.
Au début, cette expérimentation ne cherchait qu'à améliorer l'intelligence artificielle. Mais lorsque les ingénieurs ont posté ce billet, de nombreux internautes se sont intéressés à ce Deep Dream.
Google a donc rendu public le code utilisé pour générer ces images. Des informaticiens s'en sont emparés et ont mis au point des logiciels et des interfaces pour que les internautes puissent s'en servir.
Ce qui ne manque pas de plaire à Google. Les chercheurs encouragent à taguer les images #deepdream sur Twitter, Facebook ou Google+. "Il sera intéressant de voir quelles images les gens arrivent à générer", écrivent-ils.
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Además consigue ya tu Lanix Neuron R 1104-LFA07 en bit.ly/t8piFv o tu Lanix Neuron R 1104-LFA06 en bit.ly/urij09
The axon from a central sympathetic neuron in the spinal cord can project to the periphery in a number of different ways. (a) represents the spinal nerve pathway where the preganglionic fiber projects out and synapses onto a ganglionic neuron at the same level which then carries the information out through the spinal nerve. (b) represents the postganglionic sympathetic nerve pathway where a preganglionic branch projects and synapses onto a more superior or inferior ganglion in the chain which then carries the information out through a symapthetic nerve. (c) represents the splanchnic nerve pathway where a preganglionic branch extends through the white ramus communicans, but does not terminate on a ganglionic neuron in the chain. Instead, it projects through one of the splanchnic nerves to a prevertebral (collateral) ganglion. (Image credit: "Sympathetic Pathways" by Chiara Mazzasette is licensed under CC BY 4.0 / A derivative from the original work).
Environmental biology students gather samples from the DuPage River to test water conditions and quality a few weeks after 7 inches of rain caused extensive flooding in the Naperville area.
When I first saw these odd branched cracks in the ice, I thought of dendrites, but apparently my high school science is too far in the past -- my son informed me it was neurons I was thinking of, dendrites are only part of the neuron . . .
12.12.2011
Entry in category 1. Object of study; © CC-BY-NC-ND: Maria Chernysheva
Rosehips are very similar to neurons - brain cells. Like neurons, they have a variety of shapes, they age and die. And how well we preserve our neurons (as well as plants) depends on us. Neurons in our brain, like the rosehips in our gardens, are in our hands.