 Again, I think that has kind of two motivations. One is that part of the responsibility when you get external research funding from a foundation like the National Science Foundation is that you have to disseminate or communicate your research. And so one of the ways we do that is via written publications. The other is orally by going to conferences and making presentations and getting our research results out. And for the students it's a great opportunity to see how chemistry is communicated, you know, essentially internationally since these are large conferences with people from all over. So I have the students present at regular sessions, their poster presentations, so they make a large format poster, they're about four feet by six feet and they explain their research and there's a two hour poster session where all scientists from all the way from undergraduates all the way up through, you know, experts internationally come by and look at the posters and ask questions and the students get to go visit other posters and talk with people so it's both communicating our research but also connecting with other scientists and I think it gives students an idea of what's out there and whether they want to pursue this, you know, as a career, as a researcher.