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H. 30 ; L.40 cm
Avec encadrement H.40 ; L.50 cm
Acrylique brillante
Paris, 2012
> Original en vente: flic.kr/p/sNaXaX
> Estampe numérotée avec passe-partout: flic.kr/p/2kUjZ6P
> Impression grand format: flic.kr/p/2kU7mRc
=> impression encadrée: flic.kr/p/XkYpM7
> Dessous de verre: flic.kr/p/2kTJFZh
> Dessous de plat: flic.kr/p/2kTL7xh
> Set de table: flic.kr/p/2kTUzZ9
> Petits cadres noirs: flic.kr/p/2kTWgNL
> Cadres acrylique profondeur: flic.kr/p/2kTUN4u
> Sac imperméable: flic.kr/p/2kDKZo5
> Sac de courses: flic.kr/p/2j1i1wM
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© Alicia LEFEBVRE ADAGP PARIS 2021
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This group exhibition, including work by Catherine Richards, Michael Snow, Scott Rogers, Thomson & Craighead and Simon Pope, draws on ideas of scientific experimentation, media processing, and time delay. Each work acts to slow down our senses of perception, causing within us an awareness of both time passing and our experience of it. The title refers to that fact that we often watch other people interact with responsive art, and mirror their behaviour, consciously or not.
Catherine Richards’ I was scared to death / I could have died of joy features glass replicas of the brain, which react to your presence with pulses of electromagnetic light. Scott Rogers’ Between Nonesuch Place juxtaposes an actual non-functioning glass object, a ‘self-flowing flask’ with its virtual working counterpart. Thomson & Craighead’s Flipped Clock is a modified digital clock display, where each individual digit is rotated by 180-degrees. Simon Pope’s Recall From Memory the Space of Another Gallery is an invitation for the visitor to recall experiences of being in other gallery spaces from memory. The seminal filmmaker Michael Snow’s WVLNT: Wavelength for those who don't have the time. Originally 45 minutes, Now 15! remixes his own seminal work Wavelength.
Credit
Curated by Sarah Cook. Supported by CRUMB and The University of Sunderland.
…neuroni alla ricerca di una strada mai percorsa, / labirinti cerebrali specchiati, / tutto è come amplificato, bizzarro, / sono un proiettile impazzito nella fantasia cosmica….
...neurons in search for a never covered route, / cerebral labyrinths mirrored, / everything is somehow amplified, bizarre, / I am a bullet gone wild in the cosmic fantasy...
Encéphale. Les péricaryons des neurones moteurs de l’encéphale contenant les corps de Nissl
(flèches bleues) donnent à ces cellules un aspect moucheté. Les corps de Nissl sont des amas de réticulum endoplasmique granuleux. Les cercles entourent diverses cellules gliales (astrocytes, oligodendrocytes, microgliocytes)
non reconnaissables avec la méthode de coloration utilisée. Le noyau (X) des neurones est imposant, ovoide et plus ou moins en position centrale.
- Pour plus de détails ou précisions, voir « Atlas of Fish Histology » CRC Press, ou « Histologie illustrée du poisson » (QUAE) ou s'adresser à Franck Genten (fgenten@gmail.com)
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Encephalon. Motor neurons containing NISSL bodies
(blue arrows) give the neuronal cytoplasm a granular
appearance. NISSL bodies are large granules which
consist of rough endoplasmic reticulum (i.e. with ribosomes).
The circles show various glial cells (astrocytes,
oligodendrocytes or microglial cells) not distinguishable
with the trichrome stain. The nucleus (X) of the neuron is large, ovoid and centrally located in the cytoplasm.
- For more information or details, see « Atlas of Fish Histology » CRC Press, or « Histologie illustrée du poisson » (QUAE) or contact Franck Genten (fgenten@gmail.com)
The neuron is the large cell surrounded by very small glial cells. Cellular processes, dendrites and an axon, extend from the cell body of the neuron (where most of the cytoplasm and nucleus is located).
Chez les mammifères, la fonction de reproduction est sous le contrôle d’une petite population de neurones située dans une région spécifique du cerveau : l’hypothalamus. Ces neurones, dits "à GnRH" déversent dans la circulation une hormone appelée gonadolibérine ou GnRH (hormone de libération des gonadotrophines hypophysaires) qui régule la sécrétion d'hormones reproductives. Au cours de leur migration du nez vers le cerveau pendant la vie fœtale, certains neurones à GnRH (visualisés ici vert) expriment l'enzyme NOS1 (visualisée rouge). Cette dernière est capable de synthétiser un neurotransmetteur, le monoxyde d'azote, régulant l'activité des neurones à GnRH. Les cellules présentant à la fois la GnRH et la NOS1 apparaissent en jaune.
© Vincent Prévot/Inserm.licence CC-BY-NC 4.0 international
Image accompagnant le communiqué de presse publié le 5 octobre 2022 : Nouvelles pistes pour réduire les complications à long terme chez les enfants nés prématurés presse.inserm.fr/nouvelles-pistes-pour-reduire-les-compli...
En savoir plus :
Les enfants nés prématurément ont un risque plus élevé de souffrir de troubles cognitifs et sensoriels mais aussi d’infertilité à l’âge adulte. Dans une étude parue en 2022, une équipe de chercheurs et chercheuses de l’Inserm, du CHU de Lille et de l’Université de Lille, au sein du laboratoire Lille neuroscience et cognition, soulève des pistes intéressantes pour améliorer leur pronostic. En menant des travaux sur une maladie rare appelée hypogonadisme hypogonadotrope congénital, les scientifiques ont en effet découvert le rôle clé d’une enzyme et le potentiel thérapeutique du neurotransmetteur qu’elle synthétise – le monoxyde d’azote – pour réduire le risque de complications à long terme en cas de prématurité. Les résultats sont décrits dans Science Translational Medicine. L’équipe de recherche a par ailleurs lancé un essai clinique au CHU de Lille en partenariat avec un hôpital d’Athènes (Grèce) pour aller plus loin et mesurer l’effet du monoxyde d’azote chez des enfants prématurés.
Clustering of endogenous ankyrinG or Na+ channel (red) at the axonal initial segment is not altered by a mutant ankyrinG (green) that disrupts βIV spectrin localization. (JCB 176(4) 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: Yang et al. (2007) J. Cell Biol. 176:509-519.
Published on: February 5, 2007.
Doi: 10.1083/jcb.200610128.
Read the full article at:
The image displays a number of spiral ganglion neurons surrounded by Schwann cells from the inner ear of a mouse. An image stack was acquired using the FIB/SEM technique and the image was post processed in Amira ResolveRT creating this 3D reconstruction.
Courtesy of Michael Larsen
Image Details
Instrument used: Quanta DualBeam Family
Magnification: 6500x
Horizontal Field Width: 52.5
Vacuum: High
Voltage: 5.00kV
Spot: 1.0
Working Distance: 10
Detector: BCD
Agrandissement de l'image P11a_024 montrant les corps cellulaires des neurones géants de Mauthner. Le canal de l'épendyme, au centre, contient le liquide cérébrospinal (en turquoise). La substance grise est bien présente en haut du cliché. L’appareil de Mauthner est une spécialisation neuromusculaire agissant comme centre de coordination motrice qui reçoit des impressions sensorielles multiples et variées. Les cellules transmettent, via leur long axone, les informations motrices aux muscles blancs (rapides) du tronc et de la queue.
- Pour plus de détails ou précisions, voir « Atlas of Fish Histology » CRC Press, ou « Histologie illustrée du poisson » (QUAE) ou s'adresser à Franck Genten (fgenten@gmail.com)
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Higher magnification of the P11a_024 micrograph. The paired Mauthner neuronal bodies are obvious because of their huge triangular size. The central canal containing cerebrospinal fluid (turquoise) is lined by ependymal cells. Grey matter is well present at the top.
The Mauthnerian system is a neurolocomotory system
well developed in teleost fish. Two nerves possess giant axons which extend the length of the body, synapsing with motor neurons. Stimulations of the acoustic nerve VIII initiate rapid locomotion forward and away from the direction of stimuli.
- For more information or details, see « Atlas of Fish Histology » CRC Press, or « Histologie illustrée du poisson » (QUAE) or contact Franck Genten (fgenten@gmail.com)
That's no ordinary neuron! It's the ever-vivid Shelley Buschur.
Houston Art Car Parade 2007
My biology viewers might recognise what this SL model is supposed to be.
This is a preliminary prototype for a neuron membrane showing stylised transport proteins (purple). The round guys with the lids are gated sodium proteins the lidless tubes are gated potassium channel proteins. The "lids on the sodium gates will be scripted to pop open to let Na+ ions through while the bottoms of the K+ channels will flip open and closed.
The oval shaped guy on the right is part of a Na+/K+ pump.
All these proteins are embedded in a stylised plasma membrane (red fatty acid residues connected to white polar heads with phosphorus for the phospholipids).
1998 frame built with Columbus Neuron, fully chromed, lovely lugwork. Unfortunately paint is in very poor condition, lots of rust spots on the chainstays and inside the fork crown and legs. Awaiting full restoration including new chrome and wet paint. Will be dressed in mid 90's Campagnolo Chorus.
Original auction photos.
This image shows neurons In The Nucleus of the Solitary Tract (NTS) of the rat brain that have been stained using immunohistochemistry. 5-HT2A receptors have been stained in red and Beta-Tubulin III (a neuronal marker) is shown in green. The NTS acts to regulate homeostatic mechanisms essential in a wide variety of bodily functions such as cardiovascular control and reflexes. It is part of widespread neuronal circuitry and forms reciprocal connections with many other regions of the brain.
This image reflects the magnificent layout and interplay of the neurons in a rat brain. If you look closely you can see the circular bodies of the neuron that glow in red, fit into the spaces made by the green Beta-Tubulin III marker. It is reminiscent of the intricate threads of a carpet intertwining into each other to give a beautiful display of colours.
This image was created using immunohistochemistry. 5-HT2A rabbit polyclonal antibodies, Beta-Tubulin III mouse monoclonal antibodies and fluorescent dyes were used. Images were then collected using an Olympus TIRF confocal microscope with appropriate excitation lasers.
This picture in particular strikes me because this is a beautiful visual illustration of how different receptors in the brain interact and complement each other to function. It helps you appreciate that despite the millions of neurons and their infinite connections there is an underlying organisation and meaning. This stunning visual display is reminiscent not only of a carpet but of a rose bush, reminding us that these layouts and patterns are all around us. It is a reminder of the ability and power of science and research to uncover these patterns and meanings.
Le cortex moteur est une zone du cerveau située à l'arrière du lobe frontal, juste avant le sillon central qui le sépare du lobe pariétal. Il est fortement impliqué dans la planification, le contrôle et l'exécution des mouvements volontaires. L'activité de ses neurones est régulée par un neurotransmetteur, la dopamine. Cette dernière se fixe sur les neurones par l'intermédiaire de récepteurs dits "dopaminergiques". Ici, on peut visualiser des neurones du cortex moteur exprimant les récepteurs dopaminergiques
© Emmanuel Valjent/Inserm.licence CC-BY-NC 4.0 international
"Soma translates the anatomy of neurons into metal, fire and light; magnifying the microscopic world to an epic scale. In Soma, an elegant axon arch connects an earthbound neuron with its partner floating overhead.
Fire and light flow like electrochemical signals between Soma’s two neurons. Spinning balls of fire form the neuron’s nuclei. Slender dendrites extend to the sky and reach down to the earth, emitting constant flame and color changing light.
Computer-controlled flame and sequenced LEDs travel in patterns along the raised Soma archway, creating a spectacular, unique show. All of the fire effects on Soma are participant controlled, allowing the public to communicate with the sculpture itself. Soma offers participants an interactive installation that investigates the very basis of intellectual communication. "
I just loved this. How can you not love metal and fire and brilliant work?
Maker Faire 2010.