Absolutely decomposable groups

We establish numerous results concerning the construction of decomposable and absolutely decomposable groups.     

Photomagnetic effect in n-type InSb at 77 °K

The steady-state odd photomagnetic effect was studied at liquid-nitrogen temperatures (77 °K) in n-type InSb having a carrier density of 4.2 · 10¹⁶ cm^-3. When the rate of surface recombination on the illuminated surface is higher than on the dark surface, the photomagnetic effect becomes negative in suitable magnetic fields.Translated from Izvestiya VUZ. Fizika, No. 7, pp. 28–31, June, 1970.The authors thank V. A. Gridin for useful discussions.     

Some questions relating to the strength of glass laminate

The ultimate strength of glass laminate is investigated in the plane-stress case, in which the directions of the principal stresses do not coincide with the axes of anisotropy of the material and one of the principal stresses is equal to zero. The experimental data are compared with the results of calculations based on expressions describing the onset of the limiting state proposed in [1]. The agreement is satisfactory.Mekhanika Polimerov, Vol. 4, No. 1, pp. 64–66, 1968     

Effect of electric field on non-ideal plasma conductivity

An order of magnitude increase in plasma electrical conductivity with increase in electric field up to 10³ V/cm has been experimentally observed for plasma with ζ/Z ≈ 1, where ζ is the number of electrons in Debye sphere, Z = 1–3 is the stage of ionization. The effect vanishes at ζ/Z ? 10.