Gamma turns structure

Pohl G, Perczel A, Vass E et al (2008) A matrix isolation study on Ac-L-Pro-NH2 a frequent structural element of beta- and gamma-turns of peptides and proteins. Tetrahedron 64 2126-2133... 

Compound 24 is a gamma-aminobutyric acid (GABA) receptor modulator that interacts with the GABA-A sub-type which is, in turn, the same locale where the classical benzodiazepine anxiolytics are also thought to interact (diazepam or Valium being a common benzodiazepine structure shown above as 57). Although 24 is classed as a nonbenzodiazepine sedative-hypnotic because it has... 

It may also occur that, instead of a gamma photon, a shell electron is emitted. This alternative process for nuclear de-excitation is called internal conversion. Electron emission is then followed by the rearrangement of the electronic shell structure, which, in turn, is accompanied by X-ray emission, characteristic of the element concerned, or by the emission of another electron via Auger process. 

Magnetic structure determinations In certain cases details of the magnetic structure can be elucidated from hyperfine interaction measurements. For example, in Mbssbauer effect experiments employing single crystal absorbers, the relative intensities of the component lines of the spectrum depend on the angle between the gamma ray quantum and the hyperfine field at the nucleus. The latter is in turn parallel to the ionic moment. By such an experiment, Reese and... 

---