This article provides an analysis of regional development in the course of scientific-technical progress. There is strong empirical evidence that technical progress impact considerably varies, depending on state of a region. Why do some regions prosper, while others go down in the course of growing productivity? To study this complicated issue, a system dynamic model has been developed. Simulation has resulted in some insights, which help to understand the mechanism of the problem and how to cope with it
Pathology of digestive organs is high on the list in
structure of diseases of children and teenagers. Now
many pediatricians face that teenagers at the same
time have several diseases. The most exact method of
detection of the available pathology is medical
examination. These inspections of rural teenagers with
chronic gastroenterological pathology are given in
article. The carried-out work allowed revealing the
main features of a state of health of this contingent
The article presents description of an advanced asset system for geographically distributed electrical network objects
In this article we have investigated the solutions of Maxwell's equations, Navier-Stokes equations and the Schrödinger associated with the solutions of Einstein's equations for empty space. It is shown that in some cases the geometric instability leading to turbulence on the mechanism of alternating viscosity, which offered by N.N. Yanenko. The mechanism of generation of matter from dark energy due to the geometric turbulence in the Big Bang has been discussed
This article analyzes the early frontier in the Caucasus. In this paper we prove the legality of the use of the concept of "early frontier" for the period of the Russian-Caucasian history. The author, basing on the classic criteria of frontier offered by Turner F.J., compares the main characteristics of early American and Caucasian frontier. During the analysis I allocate the general and specific elements of intercultural communication of this period, which forms the basic mechanisms of frontier community. The article shows how the factor of "intermediate" defines heterotopic, unstable, reversible, transgressionnature of the basic processes and intercultural communication occurring during early frontier. The methodology of this study can be used to analyze different types and stages of the frontier, both historical and contemporary
The article, based on the total problems of formation and development of the knowledge economy, we highlighted the environmental aspect and the comparative analysis of the fundamental ideas of the knowledge economy and the noosphere concept development in terms of their complementarity
he article discusses postcards with images related to agro-botanic illustration, the possibility of their use as an information resource in the process of the study course on the history of agriculture. We have given the extensive understanding of agro-botanic illustrations, reviewed the goals and objectives of this type of image. History of agriculture in postcards considered on three types of images: art (reproduction and original) and documentary (photo). For each type of images we have illustrative examples with brief comments. The review is presented with a combined collection covering different countries of the world. The article contains examples of postcards with brief comments. It presents an overview of the collection of postcards from different countries, and an analysis of the examples from the series named "Giant vegetables at the farm" and "Apple family". Thus, the images presented on postcards allow us to obtain the following information: the orientation of the agricultural sector areas (main activities: crop production, livestock, horticulture, viticulture, vegetable growing, etc.); Botanical characteristics of crops (agro-botanic illustration; illustration of certain types of technologies of cultivation of crops (cleaning, plant care, plowing, irrigation); documentary image separate record harvests; historical and cultural traditions associated with the agricultural sector, or in separate areas; the promotion of new crops, varieties, and hybrids of agricultural plants and flower crops; information about crops grown in the region, state, specific areas; paintings covering the agricultural labor of a particular country; promotion of local flora; develops observation; teaches us to think and analyze the information
The aim of the study is to investigate the
regularities of deflection in the diagonal and radial
tires for the grain combine propulsions of high
productivity. The research method is experimental.
The "tire tester" and specially designed devices for
revealing the deflections of the inner and outer tube
relative to the rim in the circumferential and radial
directions have been used. The outcome indices of
the pneumatic-tired wheel are determined with the
tire capability to deflect so, that at low - hysteresis
losses in the rubber-cord casing and its acceptable
tensions, based on a resource, the largest area of
contact with supporting base would be created. This
circumstance acquires the particular significance
developing tires for grain combines of high
performance, the deflection regularities of which
are poorly studied at present. The analysis of
experimental studies showed the feasibility of using
the grain combine propulsions instead of the
diagonal radial tires of the same size. The resistance
to rolling of radial tires 30.5 R-32 is lower than in
diagonal tires 30.5 L-32, and the developed contact
area due to the increase of length is higher, which
reduces sealing effect on the soil
The article deals with the basic methods of stabilizing voltage generators for small hydroelectric power plants. It shows a block diagram of the implementation and analysis of the characteristics of the work; it reveals the advantages and disadvantages. The authors explain the features of the work of the functional circuits voltage regulators with discrete ballast, with phase control and management of the load current. It is shown, that to improve the performance of small hydroelectric power plants considerably we have to use contactless generators in their construction: asynchronous generators with capacitive excitation and synchronous generators with permanent magnets. The functional scheme of the voltage regulator, the construction of which has an additional field winding, simplifies the system voltage stabilization of the synchronous generator with permanent magnets, as well as a functional scheme of an asynchronous generator voltage regulator, made using step-up transformers, which significantly reduces the weight of the capacitors providing excitation of the generator and compensation of reactive power load. We have discussed the methods and devices for stabilization of voltage generators which will improve the effectiveness of pre-design work on the creation of new devices of stabilization of parameters of electric power generators for small hydroelectric power plants with improved operational and technical specifications
Черешки листьев, взятых из растений ин витро, девяти межвидовых гибридов винограда: подвоев Берландиери х Рипариа ‘Кобер 5ББ’, Рипариа х Рупестрис ‘101-14’ и сортов (cvs): 'Бианка', 'Зигфридребе', 'Подарок Магарача’, ‘Первенец Магарача’, ‘Цитронный Магарача’, ‘Интервитис Магарача’ и гибридной формы ‘Магарач 100-74-1-5' культивировали на твердой среде NN, содержащей различные концентрации 2,4-D и BА в различных сочетаниях. Для того, чтобы инициировать рост клеточных суспензий, проэмбриогенные каллусы пересаживали в жидкую среду NN, дополненную 1.0 мг/л 2,4-Д и 0,2 мг/л BА. Субкультивирование этих суспензий в жидкую среду NN, дополненную 2 мг/л NAA и 0,1 мг/л BА, привело к развитию агрегатов эмбриоидов, а пересадка в жидкую среду с 0,5 мг/л BА вызвала развитие единичных глобулярных и сердцевидных эмбриоидов. Проэмбриогенные клеточные суспензии, состоящие из преимущественно отдельных клеток, могут быть использованы в трансформации генов и селекции на клеточном уровне с целью уменьшения вероятности появления химерных растений