No abstract

In Kazakhstan, the number of studies on the values of youth has been growing in recent years. Most of them demonstrate a predominance of family values. Meanwhile, the country has a disturbing number of divorces, most of which fall on young families. In the following article, the authors attempt to find an explanation for the existing gap between declared values and actual behavior. For this purpose, the authors analyzed existing sociological studies related to youth. The authors conclude that people's responses in surveys may reflect cultural norms and, therefore, reproduce "ideal" behavior. What respondents claim in surveys can often differ from their true beliefs and views.

According to economics, prices are determined by the relationship between supply and demand: they correspond to the equilibrium in which supply is exactly equal to the demand, i.e., for which the optimal amount that the seller is willing to sell at this price is exactly equal to the optimal amount that the buyer is willing to pay. In many situations, the corresponding prices are indeed uniquely determines by the supply-demand relation. From the purely mathematical viewpoint, there are situations when the equilibrium is not unique, but most economists believe that in practical situations, equilibrium prices are usually uniquely determined. In this paper, we provide a simple but realistic example in which the equilibrium is not unique.

Despite the crisis of values that is characteristic of many countries in the world, family remains the focus of the state policy for most of them. It is recognized as the basic social unit of society, whose level of development inevitably affects the progress of the entire society. In this sense, families are active agents for achieving sustainable development goals. Thus, the progress of families will inevitably affect the progress of their communities and societies. This research paper considers a wide range of issues relating to family policy in Central Asian countries, with particular emphasis on the national policy in the field of family relations in Kazakhstan and Russia. The authors consider the concept of family policy and its impact on the family institution, study the role and importance of such a policy in the modern context, as well as analyze the conditions for the formation of the family policy during the USSR period and after the independence of the Russian Federation and the Republic of Kazakhstan.

A pulse hydropneumatic drive can make a percussive effect up to 15,000 J. A head carrying out a pulse effect (a blow) on an object is cocked in an operation position by liquid. At the same time occurs a compression of a working body (gas) in a gas accumulator. The pulse influence occurs because of head acceleration at the expense of a working body in a pneumatic accumulator. The operation of a pulse hydropneumatic drive depends on a number of parameters: viscosity and temperature of operating fluid, pressure of pneumatic accumulator initial charge and others. In the course of work oil becomes warm because of a high rate of travel in control equipment of a pulse drive in hydromains that results in changes in blow energy. A simulator describing stages and acceleration of the head of a pulse hydro-pneumatic drive. As a result of a numerical experiment carried out in the en-vironments of Mathcad and Matlab there are obtained dependences of blow energy upon working liquid tem-perature. To investigate the influence of different parameters of a pulse hydro-pneumatic drive upon its operation was designed and carried out a test bench which allows changing different parameters of a drive in a wide range. The experimental dependences of blow energy upon temperature of a working body and the dependences of blow energy upon working liquid viscosity are obtained. A comparative analysis of theoretical and experimental results which has given good convergence is carried out. The conclusions obtained: the operation of a pulse hydro-pneumatic drive is effected greatly both by the viscosity of a working body, and its temperature; the best values of head energy correspond to the mean viscosity of working liquid; to obtain a constant of blow energy it is necessary to use working liquids with stable viscosity at high tempera-tures: it is expedient that different additives should be used in working liquid to reduce a constant of friction and wear-resistance increase.