Izvestiya of Saratov University.
ISSN 1817-3020 (Print)
ISSN 2542-193X (Online)

Методический отдел

Irreversibility of time in general relativity

Background and Objectives: The equations of classical dynamics of particles and waves admit solutions with the reverse flow of time. Therefore, it is generally assumed that classical dynamics does not reflect the irreversibility of time. On the other hand, the increase in the entropy in thermodynamics, also the collapse of wave functions in quantum mechanics shows that the irreversibility of time is manifested in these disciplines of physics.

Metrology of the XXI century. Radio engineering quantities and standards in the SI system of units

Background and Objectives: The article discusses the methodological recommendations for teachers and experimental researchers on metrological support of measurements and the correct use of units of physical quantities when reading courses in the theory of communication and radio measurements and conducting practical classes. The method of calculating new standards of radio engineering units of measurements based on modern scientific and technical achievements and fundamental physical constants is discussed.

Dissertation as a Scientific Narrative

The article draws the attention of the authors of dissertations (undergraduates, graduate students, applicants) to the narrative aspect of the dissertation. Signs of the concept of “narrative” (from the English “narrative” is “story”) can be fully attributed to the dissertation (from the Latin “dissertatio” is “research”). This is already indicated by the source of the term: it comes from the Latin word narrare (“tell”), which is related to gnarus (“knowing something, knowledgeable”) and ignorantia (“ignorance, inexperience”).

On the Purpose and Features of the University Education System

The paper discusses the distinguishing features of organization of the educational and scientific work of a modern university. The organizational structure, goals, objectives and key results of the Research and Educational Center «Nonlinear Dynamics and Biophysics» of Saratov State University are presented. The effectiveness of such centers in the implementation of the relationship of fundamental scientific researches and the educational process is substantiated.

Main Types of Noises in Electronic Semiconductor Devices

Main approaches to classification of internal electric noises in electronic semiconductor devices have been analyzed. According to each approach classification of electric noises has been given.

Сommunicative Function of Thesis and Professional Grade of Dissertator

Some recommendations for writing dissertation thesis, that increase its information and communication meaning are suggested.

Training of Medical Physicists for Clinical Bases in Lomonosov Moscow State University

In article the problem of training of experts in the field of medical physics to work in clinics using at the modern medical equipment for diagnostics and treatment of various diseases, including oncological has been discussed. The experience of training of students and conducting training courses on Department of Physics of Lomonosov Moscow State University has been given.