Do you mean "can I publish them somewhere else?"
Well, this is something being debated all the time because RSS feed is actually copying people's content and putting it somewhere else and it is up to google to decide what is acceptable and what is not. It is not about morality but about an algorithm that decides who is good and who is bad. It is like playing a slot machine. Sometimes you might be lucky and some times not.
I believe that the best way would be a total re-write using different words and start in the middle, put the end in the middle and the middle at the end. Throw in some freshly taken pictures (even of the same thing from a different angle) and the search engine might believe that your article is unique. Then again it might work against you. It is a gamble.