It's called retro vaccinology, and its implications extend way beyond that of just HIV.

For instance, a Macedonian blog specialized in retro TV presents one episode, dubbed in Macedonian.

Some of the improvements were also made available as a retro fit kit to existing airlines.

The protective group can be removed by heating the compound in a solution of potassium hydroxide in propan 2 ol (a retro Favorskii reaction).

It is hardly surprising that after the Games, the Chinese Communist Party s leaders plan to vacate their retro pavilions in Zhongnanhai, the cloistered compound beside the Forbidden City, to move to a new campus adjacent to the Olympic Green, China s new power center.

His latest product, the cleverly named Mailstrom, seems almost retro in this age of social messaging it helps you manage your email. But, unlike some new tools that guess usually inaccurately whose mail is important to me, Mailstrom does an excellent job not only of categorizing my mail, but also of helping me to get rid of it by applying my own intelligence and willpower.