Embodied and disembodied technical change and the constant elasticity of substitution production function

This study examines the empirical basis for the suggestion that both disembodied technical progress and embodied technical progress in the capital stock and in labour have been important in the United States in the period 1947–1980. The results obtained by using a constant elasticity of substitution production function suggest that disembodied technical progress has been about 3% per year, embodied technical progress in the capital stock is in the neighbourhood of 3 to 4% annually and educational attainment significantly enhances labour productivity. Finally, when the structural stability of the underlying production relationship is examined, the period 1971–1980 gives rise to some inconsistency.     

Singlet structure function at small x: Unitarization of gluon ladders

The singlet structure function of a deep inelastic process, D(x, q², is studied in the double log approximation of perturbative QCD at small x and large q². It is shown, how the increase of D at small x is screened by multiladder diagrams, so that the unitarity is not violated. The equation that sums such diagrams is written and solved, the screening effects being reduced to a specific boundary condition for the ladder equation.     

Discussion of the effect of the intensity of radiation and the parameters of a medium on the change in the refractive index accompanying the absorption of HF-laser radiation by water vapor

Translated from Zhurnal Prikladnoi Mekhaniki i Tekhnischeskoi Fiziki, No. 4, pp. 10–15, July–August, 1989.