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Sylvain Pelloquin
Worked at CEA-Leti
Lives in Grenoble
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Sylvain Pelloquin

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For Estrosi with love...
 
Juste pour le plaisir !
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Dans la polémique qui entoure le burkini, le maire de Nice, Christian Estrosi, menace les internautes qui relaient les images des policiers en action.
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Et paf... effet flamby !
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Sylvain Pelloquin

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"On aurait tort de ne voir dans cette fureur qu’un délire collectif. Son surgissement rappelle que ce n’est pas l’affrontement préalable de civilisations supposées antagoniques qui entraîne la guerre, mais, plus souvent, le conflit d’intérêts — économiques ou militaires — qui favorise la mise en scène d’une opposition culturelle irréductible."

Comme quoi, on a tendance a avoir la mémoires très courtes (ou a ne rien retenir des leçons historiques )
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par Pierre Rimbert (Le Monde diplomatique, avril 2016) // L'Amérique est entrée en guerre contre l'Allemagne en avril 1917, aux côtés du Royaume-Uni et de la France. Et, comme le raconte le journaliste Erik Kirschbaum dans son livre « Burning Beethoven », la mobilisation se double d'une croisade contre les Américains d'ascendance allemande, supposés déloyaux.
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Très bon argumentaire.
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Sylvain Pelloquin

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À bout de nerfs...
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« Faut-il rire des terroristes ? » Logiquement, c’est ici que je devrais vous expliquer longuement l’importance de le faire, car comme je l’écrivais en d&rsq…
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Sylvain Pelloquin

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Racisme décomplexé... #franceterredacceuil
 
La police municipale a demandé à une femme portant un simple hijab de quitter une plage cannoise ou de payer une contravention. Le maire estime que les policiers peuvent verbaliser toutes les tenues "ostentatoires".
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Le flic a donné libre cours à ses préjugés KKK
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Sylvain Pelloquin

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Intéressant !
 

DNA Naturally Fluoresces

A Northwestern University team recently caught DNA doing something that has never been seen before: it blinked.

For decades, textbooks have stated that macromolecules within living cells, such as DNA, RNA, and proteins, do not fluoresce on their own.

Technology instead relies on special fluorescence dyes to enhance contrast when macromolecules are imaged.

But now Professors Vadim Backman and others have discovered that macromolecule structures in living cells do, in fact, naturally fluoresce.

This finding could open the next frontier of biological discovery by paving a new way for label-free, super-resolution nanoscopic imaging and expanding the understanding of biological processes.

"Everybody has overlooked this effect because nobody asked the right question," said Backman, "It sounds cliché, but you get the answer to the question you ask. When we actually asked the right question, we got a very different answer than expected."

This research is described in the Proceedings of the National Academy of Sciences.

"There are textbooks that say biological molecules don't absorb light and don't fluoresce," said Zhang, associate professor of biological engineering. "It's what everyone learns; it's a part of training, so nobody questions it."

The reason why no one spotted the fluorescence before?

The molecules were in the "dark state," a condition in which they do not absorb or emit light. But just because they spend so much time in the dark state does not mean they never emit light. Backman likens the situation to athletic interval training.

"Sprinters alternate running very, very fast and resting," Backman explained. "You might catch them when they are resting and assume they aren't doing anything. That's what DNA and proteins do. They fluoresce for a very short time and then rest for a very long time."

Backman, Zhang, and Sun discovered that when illuminated with visible light, the molecules get excited and light up well enough to be imaged without fluorescent stains. When excited with the right wavelength, they even light up better than they would with the best, most powerful fluorescent labels.

"This is ideal because staining is toxic," Zhang said, "and it makes imaging less precise."

This toxicity makes it tricky to get an accurate image of the active processes in living cells because they die immediately after the application of fluorescent stains. There are special dyes used to image living cells, but those just cause the cells to die slower.

"The cell might die in two hours, so you can still do imaging in the first half hour," Backman said. "But what exactly are you measuring? What are you actually seeing? Are you looking at real processes of the cell? Or are you looking at processes in a cell that is about to die? Nobody knows."

Thanks to Backman, Zhang, and Sun, the world soon might know.
A Northwestern University team recently caught DNA doing something that has never been seen before: it blinked.
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Quand je vois de nombreux messages ici s'indigner des résultats de l'affaire Jacqueline Sauvage, je me rends compte à quel point les médias ne font pas leur travail d'analyse, et qu'ils poussent au sensationnalisme et à la critique de la justice française sans fondements réels...
Voici une source un peu plus sérieuse pour comprendre que cette affaire n'est pas si simple, et que la justice n'a pas déconné ici :
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Le médias et nos politiques qui s'en donnent à coeur joie.
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Sylvain Pelloquin

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Très bon texte...
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Symptôme de notre époque individualiste et hyperconnectée, le conspirationnisme est autant cause et conséquence de la dépolitisation de notre société.Les attentats de Charlie Hebdo, le virus Ebola,…
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Très bon article sur pokemon go et son impact auprès des rageux :)
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Des gens qui courent, des accidents, et même des morts depuis que Pokémon Go est sorti. Vous le savez pour une seule raison : la presse s…
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Ingénieur-chercheur en sciences des matériaux
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  • CEA-Leti
    Ingénieur-Chercheur, 2012 - 2014
  • Institut des Nanotechnologies de Lyon
    Doctorant, 2008 - 2011
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Nombre d'Erdös : 5 ; Nombre de Bacon : 4 ; Nombre de Sabbath : en cours de recherche...
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Grenoble
Previously
Lyon - Nantes
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Très très bons produits ! Un très bon italien !
Public - 6 months ago
reviewed 6 months ago
Public - 8 months ago
reviewed 8 months ago
Très bonne petite adresse, cuisine familiale, et la patronne (Sosso, je présume ?) était très sympathique.
Public - a year ago
reviewed a year ago
4 reviews
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Très bon spécialiste, passionné par son métier et à l'écoute.
Public - a year ago
reviewed a year ago