I wouldnt recommend it, it is very easy to come across as pestering them. Your chance to show them that you really want the job, like ALL of the rest of us on this forum, is to wait for them to invite you to interview and prove your worth there.
By all means you can send them emails everyday and call them telling them how badly you want the cadetship! But it is very easy to cross over the line and appear desperate. Just my two ps worth.