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11- Images obtenues par interférences en lumière polarisée

Maurice Françon, ancien professeur de Physique à la faculté des Sciences de Paris puis à l'Université Pierre et Marie Curie présente, dans ces vidéos, douze expériences d'optique.Vous découvrirez dans ces vidéos des expériences illustrant visuellement et expliquant des phénomènes variés : rélexion et réfraction de la lumière, dispersion de la lumière par un prisme, principe de l'holographie et de la microscopie par interférences en lumière polarisée, couleurs d'origine interférentielle des colibris.
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2.8. Reducing the Key Size - MDPC codes

This is the last session where we will talk about reducing the key size. Here we will introduce the MDPC codes.In 2012, the MDPC codes were proposed for the McEliece schemes. An MDPC code is a code that admits a binary moderate density-parity check matrix. Typically, the Hamming weight of each row is of the order the square of the length. In this sequence, I will describe this scheme of quasi-cyclic MDPC McEliece for a binary code of rate one half. So, we use circulant matrices of blocks of size p ...
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Relative transfer function

Part 2 : Methodological Foundations2.1. Robot heads and acoustic laboratories     2.2. Binaural Processing Pipeline     2.3. Continuous-time Fourier transform     2.4. Continuous short-time Fourier transform     2.5. Discrete-time signals     2.6. Discrete short-time Fourier transform     2.7. Spectrogram of an acoustic signal     2.8. Cross-correlation     2.9. Relative transfer function     2.10. Binaural features
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2.9. Whole genome sequencing

Sequencing is anexponential technology. The progresses in this technologyallow now to a sequence whole genome, complete genome. What does it mean? Well let'stake two examples: some twenty years ago, to sequence the bacillus subtilis bacteria genome took something like ten years,thirty five laboratories and several millions of euros. It was partly a European project,now some hundreds of dollars and it can be done within a day. The human genome project, famoushuman genome project, more than ten years, three billiondollars, 19-91 dollars OK.Tomorrow certainly less than 1000 dollars per genome, it means that we can now sequence humangenomes, not one but many many human genomes for the sake ofcomparison, diagnosis and so ...
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4.1. How to predict gene/protein functions?

Last week we have seen that annotating a genome means first locating the genes on the DNA sequences that is the genes, the region coding for proteins. But this is indeed the first step,the next very important step is to be able to predict thefunctions of the genes. That is more correctly, the function of the protein coded by the genes. How can we predict thisgene or function protein? It is essentially based on thefact that we will retrieve genes or protein for which the sequenceis similar and for which we know the function. So we will seehow we can measure and compute the similarity between DNA or protein ...
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