I have to say publicly that this sentence makes absolutely no sense as crossref and figshare are not comparable assigning authorities. CrossRef is a registration agency of the International DOI Foundation; FigShare is not. Based upon the example given, the assigning-authority for a DOI would only ever be the set of agencies that assign DOIs. FigShare is not one of those agencies. See it is not on the list: https://www.doi.org/registration_agencies.html

Actually, microlectures are NOT just what they sound like. This implies an abbreviated lecture (ie., Ted talk or Khan Academy). Instead these are strategically designed 60 second presentations incorporating metaphors and keywords, designed to arouse curiosity. Learning takes place when the learner actively participates in knowledge acquisition and synergy.