This article discusses the actual problem of using SSR-markers in studies of the genus Prunus. We have examined the works on the most important cultures of genus, collected and analyzed contemporary literature of the subject. Data of the initial stage of Prunus SSR-based genetic diversity study in the North-Caucasian region has been described in the presented publication
In the given article, the influence of ultrasonic oscillations on mechanical and tribotechnical properties of polymeric composite materials based on polytetrafluoroetylene is considered
The article is devoted to the study of rating the
creditworthiness of banks. The concept and the process
of ranking have been revealed. The authors give a
retrospective analysis of the development of views on
the formation of ratings in the banking sector.
Particular attention is paid to the methodology of
Moody's, the largest rating agency, which is based not
only on the study of the set of key performance
indicators of the company at the micro and the macro
level, but also takes into account the quality of
company management and current trends in the
industry. On the basis of gradation we made a
comparative analysis of methods of ratings by
Standard and poor's, and Moody's rating agencies,
which allows identifying the unity of their approaches
to evaluating the creditworthiness of companies. Along
with international experience rating, we have studied
Russian experience. We have considered the legal
basis for the activities of Russian ratings agencies and
documents that are the primary source of data for the
evaluation of companies. We study ratability
particularities in domestic practice; in particular, we
have presented criteria for Rating Agency called
Expert RA. The authors presented the forecasted
values of key indicators of the economy of the Russian
Federation, which affect the country's credit rating,
such as GDP, inflation rate, the key rate,
unemployment rate, exchange rate of the ruble. It was
concluded that there was a need to move from
quantitative to qualitative assessment when examining
the organizational effectiveness of the banking sector
The article discusses the method of selection using markers in the selection of parent pairs for hybridization, in the selection process and in the subsequent evaluation of parent lines, used in linear and backcross selection of tomatoes. The work was performed on tomato hybrids that combine resistance genes to tomato mosaic virus (ToMV) or tobacco mosaic virus (TMV) in their genome. The research used seeds of foreign F1 tomato hybrids recommended by the manufacturer as resistant to the tobacco mosaic virus. Most of the tomato hybrids were Dutch selection, such leading firms as De Ruiter Seeds, Enza Zaden, Rijk Zwaan. The aim of the work was to test a system of hybridization probes designed to identify a gene for resistance to the tobacco mosaic virus. The study of the genotype of tomato plants was carried out in the laboratory of molecular diagnostics of plants , equipped with modern devices for PCR analysis on the basis of NIIOZG (Krymsk). Plant material was collected in different phases of plant vegetation. pre-numbered 1.5 ml test tubes (SSI-1200-00), plastic tablets, tweezers, and distilled water were used to collect plant samples. The collected samples were stored in a refrigerator until the plant DNA was isolated. During the study, collectible tomato samples were studied, including 8 F1 hybrids and 2 lines used as controls. According to the results of genetic analysis using the marker of the TMV resistance gene, it was found that all hybrids and one control line # 175/14 have a resistance gene in their genotype, and the analysis also showed the state of the gene – homozygous or heterozygous. The results of artificial infection confirmed the results obtained by PCR analysis. At the same time, using genetic research, it is possible to determine the exact state of the gene in the plant, which cannot be determined by methods of artificial infection, since no visual differences were found between plants with a heterozygous and homozygous state of the gene. The created marker and PCR analysis method can be recommended for wide application in the selection process of tomato culture. As a result of research, it was found that modern tomato hybrids have a gene for resistance to tobacco mosaic virus (TMV) in their genotype. This was determined by genetic analysis and confirmed by a test using artificial infection
In this report we have compared an approximation accuracy of distribution function of continuous random variable in a bounded region calculated with Rozenblatt-Parzen method and imaginary sources method. The comparison has been performed with theoretical distribution rule. We have explained the reasonability of using imaginary sources method in case of continuous random variable with single-mode distribution rule
The article proves a positive effect of feeding with saffron cake and premix based this substance on growth and development, nutrient utilization ration, morphological and biochemical parameters of blood of calves of black-motley breed
The article presents the results of two researches and production experiments conducted on broiler chickens grown in the area with high technological background in feed heavy metals and at the risk of aflatoxicosis. Experimental data obtained during the first experiment suggests that in order to optimize biology and agro-food value of meat with excess of heavy metals and the risk of aflatoxicosis it is advisable to grow broiler chickens of the domestic cross-country of "Smena -7" In the barley-wheat-sunflower-type animal feed of broiler chickens of this cross one should include the formulation of a mold inhibitor of methoxy - phenyl.
During the second research and production experience for broiler chickens of “Smena-7” cross it has been found that with the joint supplements in animal feed to the high background of heavy metals and aflatoxin B1 preparations of beet pectin and methoxy - phenyl having absorption properties, there is an increase of slaughter and meat qualities. At the same time, the meat of poultry has increased its protein-quality score and decreased the concentration of heavy metals in the meat , which helps to improve consumer properties of poultry products
This article describes quantitative evaluation of add-ing succinic acid in the bran substrate when cultivating Pseudomonas fluorescens
A diversified corporation is a highly complex multivariable dynamic system. The application of classical forecasting methods applied to such objects has encountered a number of difficulties, due to its economic nature. In the article, we substantiate the requirements to the forecasting method; on the basis of these requirements we can select the method and its software tool
The article is devoted to the expert systems technology using to monitor the correct operation of the software and databases. It is noted that the main issues of security management in critical information systems is a process of observation and collection of information in a computing environment. Observation results should be evaluated and processed by an expert on security and then recorded in the database of expert systems. One of the possible options for security management of distributed computing network - creating a security machine. It will ensure: minimum response time to external perturbations; the accuracy of the audit protected by S-interface and independent decision-making process of the state of the controlled elements of information systems. After that, the agent is completely worn out; it is destroyed and replaced by a new one. This aging mechanism protects agent from analyzing and from external attacks