National security, unlocked. Each Thursday, host Mary Louise Kelly and a team of NPR correspondents discuss the biggest national security news of the week. With decades of reporting from battlefields ...

Once peer review is completed and the editor is satisfied that any concerns raised by the reviewers have been suitably addressed, the paper is accepted ‘in principle’ (AIP). The editor will send ...

Peptides are amino acid polymers. They are generally much smaller than proteins and don’t have sufficient activity on their own – they generally represent a small portion of a full protein. They may ...