I don't know where the question needs to go, but it doesn't need to go to askubuntu. I'm looking at a tar.xz file on a totally non-Ubuntu operating system, and found this page Googling. I certainly wouldn't have known to look in Ubuntu. â skiphoppy Dec 9 '13 at 17:57.
An electronic press kit (EPK) is a press kit equivalent in electronic form. An EPK usually takes the form of a website or e-mail, though they are also known to exist in CD and DVD form.
EPR (Electron Paramagnetic Resonance) is a spectroscopic technique that detects species that have unpaired electrons. It is also often called ESR (Electron Spin Resonance). A surprisingly large number of materials have unpaired electrons. These include free radicals, many transition metal ions, and defects in materials.