395 This Is also explained by the fact that there have appeared the so-cal led "mixed sciences" (physical chemistry, radio physics• geophysics, etc.>. Even In medicine one may find specialists trained as engineers or In cybernetics, whi~h is quite normal. The number of scientists, who changed the!~ profession In the area of physico-technical problems of material science• In the area of biochemistry, biophysics and ph¥slo!ogy, Increases to 291 whl le In the area of mathematics, mechanics and cybernetics It reaches 341. PLANNING POST-GRADUATE COURSES Planning the post-graduate training of scientific, technical and scientific-pedagogical personnel Is carried out In order tomeet the demand of the national economy, academies and their Institutes, research Institutes, higher educational establishments, qual lflcatlon Improvement Institutes, branch research Institutes and designing Institutes In the highlY qualified personnel. The quality of training scientific, technical and scientific-pedagogical personnel at the scientific organizations of the USSR Academy of Sciences and at higher educational !nstlt.utlons depends at large on the availability of scientific schools, directions, prsonnel of scientific-research Institutes of the academies, and professor-teaching personnel at higher educational Institutions. It Is for them to solve the task of transferring their scientific and professional knowledge• accumulated In the course of decades, to the future scientlfic and scientific-pedagogical workers, to arm them with mo~ern scientific methods of research and ski I Is of creative exploration of new and progressive ideas in the subsequent acceleration of the scientific-technical revolution. Post-graduate courses were organized In our country for the first time In 1925 under the Presidium of the State Scientific Council. The number of students reached only 30. In 1929 the number of post-graduate students reached 5,000. Consequently, a strong foundation was laid down for training scientific and professor-teaching personnel during the first years of the Soviet power. As a result of the planned measures for training and drawing 
**Analysis**
The text discusses the training of scientific, technical, and scientific-pedagogical personnel in the Soviet Union, highlighting the growth of post-graduate courses and the importance of scientific schools and directions in the country's development. The text focuses on the training of experts in various fields, including physical chemistry, radio physics, geophysics, and biochemistry, which suggests a strong connection to science and technology.

**Category**
Education, Science and technology