Studies on otitis externa in dogs. I. Survey of aetiological agents: fungi

The mechanism of the teratogenic effect of thalidomide is unknown. The hypothesis that this drug acts on the sensory nerves of the embryo was derived from radiological observations of two series of thalidomide-deformed children. Supplementary evidence was found in neurological, embryological and other literature, to support the hypothesis of embryonic neuropathy. The concept can be extended to include visceral as well as skeletal deformities. Evidence for and against the hypothesis is presented, and its application to a broad spectrum of congenital deformities provides an explanation of a number of previously unrelated facts. Areas for further research are suggested.     

Stereotaxic surgery in the hyperkinetic form of infantile cerebral palsy

The results of 67 stereotaxic operations performed in 60 patients for the hyperkinetic form of infantile cerebral paralysis are presented. The efficacy of dentatotomy is compared with that of thalamotomy. Thalamotomy is most effective in patients with hemiatetosis and choreoatetoid hyperkinesis. Dentatotomy resulted not only in a reduction of hyperkinesis, but also in a considerable alleviation of muscle spasticity. The destruction of the lateral part of nuclels dentatus caused predominantly a reduction of the muscle tone and of involuntary movements of the lower extremities, and--to a lesser degree--of the upper as well. The destruction of the medial part of the nucleus dentatus resulted in a clear reduction of muscle dystony in the trunk.     

International scientific collaboration of post-Soviet countries: a bibliometric analysis

Scientometrics - One of the major characteristics of research is the role and scope of international collaboration. Patterns of such collaboration are often complex and determined not only by pure...     

Biocatalyst for the environmentally friendly synthesis of vitamin E intermediate

Clean Technologies and Environmental Policy - The article describes several methods for the synthesis of biocatalysts based on horseradish root peroxidase (EC 1.11.1.7) immobilized on various...     

Distinctive Features of Composition and Properties of Heavy Naphthenic-Aromatic Oil and Options for its Proficient Refining

Chemistry and Technology of Fuels and Oils - The article examines the chemical composition and physicochemical properties of heavy naphthenic-aromatic oil and its fractions. In comparison with...     

Effect of microwave irradiation on the resistance of Au-TiB x -Ge-Au-n-n +-n ++-GaAs(InP) ohmic contacts

Temperature dependences of the contact resistivity ρ _c of Au-TiB _x -Ge-Au-n-n ⁺-n ⁺⁺(GaAs)-InP ohmic contacts before and after short-term (10 s) microwave treatment have been studied both experimentally and theoretically. It is shown that ρ _c can decrease after microwave treatment in the entire temperature range of ρ _c measurements (100–400 K). Good agreement between the theoretical and experimental ρ _c (T) curves is attained and interpreted on the assumption that the dislocation density in the semiconductor near-surface region is varied as a result of microwave radiation.