1 Oct 9, 2015 Eli Lilly to Expand Its NYC Labs at Alexandria Center The Wall Street Journal. 2  Oct 6, 2015 Health-Stock Selloff Saps Marketâs Momentum The Wall Street Journal. 3  Oct 6, 2015 Global Stocks Lose Momentum Dow Jones Newswires.
FÃ¶rster resonance energy transfer. FÃ¶rster resonance energy transfer (FRET), fluorescence resonance energy transfer (FRET), resonance energy transfer (RET) or electronic energy transfer (EET) is a mechanism describing energy transfer between two light-sensitive molecules (chromophores).
The neck of a guitar showing the nut (in the background, coloured white) and first four metal frets. A fret is a raised element on the neck of a stringed instrument. Frets usually extend across the full width of the neck. On most modern western fretted instruments, frets are metal strips inserted into the fingerboard. On some historical instruments and non-European instruments, frets are made of pieces of string tied around the neck. Frets divide the neck into fixed segments at intervals related to a musical framework. On instruments such as guitars, each fret represents one semitone in the sta