The following is a list of the various contract types that are issued, reviewed, and negotiated by Office of Research*, with brief descriptions of the most common contract vehicles we process. Amendment / Modification. A contractual award document that modifies any aspect of an existing award.
All users who have the torrent open make up what is called a swarm. Technically, a seeder is someone who has 100-percent of the pieces that make up the torrent. Initially, the first few leachers within a swarm feed off the seeder.The more seeders the faster the download will go.    Leechers are people who has a negative effect on  the swarm of the torrent. Leechers are commonly the users who  download much than they upload.
Seeding is the process of connecting to a torrent when you have a complete file. Yes it is important to seed 1 to 1. The more seeders there are on a torrent the faster the torrent is. You are not downloading the torrent from the actual site you get it from.