Queen Elizabeth II gave Mr Obama a red leather-bound volume entitled A Selection of Papers From the Royal Archives 1834-1897, signed photos of herself to several senior White House aides, and a brooch with gold leaves and coral flowers to First Lady Michelle Obama.

BBC: China tea set and brooch among royals' gifts to Obamas

The court papers state she was interviewed in August 2011 for selection to the panel of candidates for the council elections but received feedback saying that some of the answers to the questions were "unsatisfactory".

BBC: Anna Dyer

Articles specially commissioned by the Editorial Office are complemented by a selection of responses to an open call for papers.

UNESCO: Social and Human Sciences