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  • YouTube Premium


    YouTube Premium (formerly YouTube Red) is a paid streaming subscription service that provides advertising-free streaming of all videos hosted by YouTube, exclusive original content produced in collaboration with the site's major creators, as well as offline playback and background playback of videos on mobile devices. The service was originally launched in November 2014 as Music Key, offering only ad-free streaming of music and music videos from participating labels on YouTube and Google Play Music. The service was then revised and relaunched as YouTube Red on October 31, 2015, expanding its scope to offer ad-free access to all YouTube videos, as opposed to just music. YouTube announced the rebranding of the service as YouTube Premium on May 17, 2018, alongside the return of a separate, YouTube Music subscription service.

  • Hydrophobicity scales


    Hydrophobicity scales are values that define relative hydrophobicity of amino acid residues. The more positive the value, the more hydrophobic are the amino acids located in that region of the protein. These scales are commonly used to predict the transmembrane alpha-helices of membrane proteins. When consecutively measuring amino acids of a protein, changes in value indicate attraction of specific protein regions towards the hydrophobic region inside lipid bilayer.

  • Busuu


    busuu is a social learning app for languages. It is available on the web and via iOS and Android. Courses are available in twelve languages: English, Spanish, French, German, Italian, Portuguese (Brazil), Russian, Polish, Turkish, Arabic, Japanese, and Chinese. Learners select one or more of these languages and work through the self-paced lessons, studying vocabulary and grammar, which they can then practice in spoken or written conversations with native speakers in the busuu community. As of December 2017, busuu numbers more than 80 million registered users in its community.

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