Maryland - Nobel Prize winning scientist Daniel Gajdusek (74) was released yesterday after serving a year in jail for sexually abusing a teenage boy he brought home from a research trip to Micronesia. He admitted two counts of child abuse in February 1997. The charges are punishable by up to 30 years in prison, but under the plea agreement, Gajdusek was to serve no more than a year in jail in Frederick, Maryland, in the US.