Effect of electrolyte composition on porous anodic aluminium oxide formation

The effect of composite anodizing electrolyte with reduced content of organic acids on the formation rate, structure and properties of aluminium oxide film was studied. It is established that for the production of electronic devices structural parts of improved insulation properties it is preferable to use the solutions where less active citric acid predominates. It has been shown that kinetic retardation of specified anodic process of aluminium oxidation increases the density of barrier oxide while preserving the rate of main porous Al[2]O[3] layer growth

Technology of forming the algorithmic culture of future teachers in the distance learning conditions

The article reviews the technology of forming the algorithmic culture of future teachers in the distance learning condition

INTERRELATION BETWEEN STRUCTURAL YIELD ELEMENTS AND TECHNOLOGICAL INDICATORS OF WHOLEGRAIN AND MILLED RICE IN NEW RICE CULTIVARS

Background. To obtain sustainable and high rice yields, it is crucial to select the best cultivars adapted to the cultivation in the main rice-growing areas. Combining high yields and technological quality indicators of wholegrain and milled rice is of vital importance. The practical solution of such an important task largely depends on successful breeding work.Materials and methods. Eight rice cultivars were evaluated in competitive trials in 2016–2018. Experimental plots were arranged within the rice irrigation system of the All-Russian Rice Research Institute in Belozerny Settlement, Krasnodar Territory. During the growing season, the following traits were visually evaluated: plant density, resistance to lodging, disease and pest infestation, and uniformity of crops. Screening and discarding operations on the plots planned for harvesting were followed by making model sheaves of 10–15 plants each for biometric analysis. Technological characteristics of wholegrain and milled rice were measured according to GOST 10843-76 and GOST 10987-76 standards. The results were mathematically processed and proved reliable.Results. Four promising cultivars ‘VNIIR 10244’, ‘VNIIR 10275’, ‘VNIIR 10279’ and ‘VNIIR 10282’ with a set of economically useful traits significantly exceeding the standard reference (st) ‘Flagman’ were selected. Their yield was 9.0 t/ha; 1000 grain weight: 29.3; 28.1; 30.4 and 26.3 g; hull percentage: 17.7; 19.7; 19.5 and 21.4%; and wholegrain content: 88.5; 93.5; 89.4 and 97.8%, respectively. Significantly high yields of these cultivars are due to the optimal number of fertile spikelets (150–160 pcs), panicle density (9.8–12.6 pcs/cm), and significant weight of grain from the main panicle (3.7–4.4 g), with an average sterility of 14.2–20.3%. A close positive correlation of yield traits with wholegrain content was observed in cvs. ‘VNIIR 10282’, ‘VNIIR 10279’, ‘VNIIR 10276’ and ‘VNIIR 10275’ (r = 0.92– 0.98). An inverse relationship between yield and kernel fissuring was observed in most genotypes, which testifies to the potential possibility of increasing their yield without the risk of reducing milled rice yield or wholegrain content.Conclusion. The evaluation resulted in identifying four promising rice cultivars: ‘VNIIR 10244’ and ‘VNIIR 10279’ (large-grain), ‘VNIIR 10275’ and ‘VNIIR 10282’ (medium-sized grain). They significantly exceeded the standard reference ‘Flagman’ in a set of economically useful traits: yield and its structural elements as well as technological characters of wholegrain and milled rice quality. The best of the selected genotypes according to the optimal ratio of the studied traits will be submitted to the State Variety Trials in 2019–2020

The role of «proteolysis-antiproteolysis» system genes in occupational COPD development.

COPD is multifactorial disease, in which hereditary predisposition and environmental factors (including work conditions) play an important role. Among the genes associated with possible predisposition to COPD development a group of genes with the expression impacting the activity of “proteolysis-antiproteolysis – MMP2, MM9, TIMP2, A2M, ELN is considered. The main group of 72 underground coal miners with COPD (mean age 53,7±5,8 years, mean work experience – 21,8±4,8 years), and control group of 79 healthy miners (mean age – 48,2±5,6 years, mean work experience – 20,2±4,5 years) were examined. Polymorphism of genes with out bronchopulmonary pathology MMP9, α2M was revealed using PCR with electroforetic detection in agarosegel. Polymorphism of genes TIMP2, MMP2, ELN was revealed using PCR with fluorescent detection (RealTime PCR). By the data of molecular-genetic research among miners with COPD of occupational etiology (main group) and miners without it (control group) there was estabkished a reliable difference for the genotypes:MMP9*СС,TIMP2*GG; MMP9*СС,MMP2*CC,TIMP2*G/G,α2M*IIe/IIe,ELN*Gly/Gly; MMP9*СС,MMP2*CТ,TIMP2*G/G,α2M*IIe/Val,ELN*Gly/Gly; MMP9*СС,MMP2*CС,TIMP2*G/G,α2M*IIe/Val,ELN*Ser/Se; MMP9*СТ,MMP2*CC,TIMP2*G/G,α2M*IIe/IIe,ELN*Gly/Ser. These genotypes are associated with resistance for COPD development in underground coal miners ofUkraine. The obtained results testify to the participation of genes encoding protein synthesis of the system "proteolysantiproteolysis": MMP2, MMP9, TIMP2, A2M, ELN in the formation of genetic predisposition and resistance to the development of COPD of professional etiology in miners, which reveals new opportunities in the prevention of this disease in workers subject to the high concentrations of coal-rock dust

Research of some physical and mechanical characteristics of suiting fabrics for designing the clothes

The main physical and mechanical characteristics that have an effect on the shape and design of the clothes are thickness, surface density, rigidity and drapeability of the fabric. Experimentally, according to the standardized methods, were identified the main physical and mechanical characteristics of fabrics of the suiting group. Using the selected parameters, the comparative analysis of fabrics samples was conducted and dependencies between them were determined. Analysis of experimental data showed that the raw components of fabrics do not affect significantly on their properties (drapeability, rigidity). Fabrics with the different raw components can have the same or close values of these parameters. More significant is the weave of fabric, which has an effect on the rigidity characteristics of fabric in the longitudinal and transverse directions. Conducted experimental researches are the basis for development of the suiting group fabrics classification in terms of flexural rigidity for the purpose of developing the recommendations for designing the clothes of different three-dimensional forms

The role of «proteolysis-antiproteolysis» system genes in occupational COPD development.

COPD is multifactorial disease, in which hereditary predisposition and environmental factors (including work conditions) play an important role. Among the genes associated with possible predisposition to COPD development a group of genes with the expression impacting the activity of “proteolysis-antiproteolysis – MMP2, MM9, TIMP2, A2M, ELN is considered. The main group of 72 underground coal miners with COPD (mean age 53,7±5,8 years, mean work experience – 21,8±4,8 years), and control group of 79 healthy miners (mean age – 48,2±5,6 years, mean work experience – 20,2±4,5 years) were examined. Polymorphism of genes with out bronchopulmonary pathology MMP9, α2M was revealed using PCR with electroforetic detection in agarosegel. Polymorphism of genes TIMP2, MMP2, ELN was revealed using PCR with fluorescent detection (RealTime PCR). By the data of molecular-genetic research among miners with COPD of occupational etiology (main group) and miners without it (control group) there was estabkished a reliable difference for the genotypes: MMP9*СС,TIMP2*GG; MMP9*СС,MMP2*CC,TIMP2*G/G,α2M*IIe/IIe,ELN*Gly/Gly; MMP9*СС,MMP2*CТ,TIMP2*G/G,α2M*IIe/Val,ELN*Gly/Gly; MMP9*СС,MMP2*CС,TIMP2*G/G,α2M*IIe/Val,ELN*Ser/Se; MMP9*СТ,MMP2*CC,TIMP2*G/G,α2M*IIe/IIe,ELN*Gly/Ser. These genotypes are associated with resistance for COPD development in underground coal miners ofUkraine. The obtained results testify to the participation of genes encoding protein synthesis of the system "proteolysantiproteolysis": MMP2, MMP9, TIMP2, A2M, ELN in the formation of genetic predisposition and resistance to the development of COPD of professional etiology in miners, which reveals new opportunities in the prevention of this disease in workers subject to the high concentrations of coal-rock dust

Development of the new employment forms in the context of digital transformation of the economy

The article deals with the problems of the formation of new forms of employment under the influence of digitalisation processes and a protracted economic crisis. The purpose of the study is to consider the little-studied aspects of development of the new forms of employment in the conditions of the “fourth industrial revolution” and determine their prospects. The work shows that the spread of new forms of employment in the context of the formation of a new technological order indicates the digital transformation of the economy and at the same time acts as a response to the economic crisis caused by the obsolescence of the industries of the outgoing modes due to the gradual exhaustion of their efficiency, including impact of the recent COVID-19 pandemic. At the same time, the introduction of new elements of employment into the system of social and labor relations does not eliminate the previously existing conflicts of interests of their participants, but ensures a more dynamic development of the labor market and increases the adaptive potential of workers. Particular attention is paid to such forms of work organization as mobile work based on information and communication technologies, work on platforms and sharing of employees’ labor. The authors conduct a comparative analysis of the advantages and disadvantages of these forms of employment based on employers’ and employees’ interests and points of view. Reserves of growth and restrictions on the development of new forms of employment have been identified. Attention is focused on the social and cultural consequences of increased flexibility and mobility of labor relations in the context of the development of new non-standard forms of employment. The results of the study can be used in developing areas for improvement of employment policy in the context of further deployment of digitalisation processes

IMPROVEMENT OF PHARMACEUTICAL SPECIALISTS DURING THE PERIOD OF REFORMING MEDICINE AND PHARMACY IN UKRAINE

The article describes the need to determine the main directions and priorities of the development of the pharmaceutical industry in Ukraine, which is conditioned by real political and socioeconomic processes. The main element here is the introduction and development of a formular system - a complex of management methods for the application of rational, organizational and cost-effective methods of supplying and using drugs to ensure, in specific conditions, high quality medical care and optimal use of available resources.Key words: pharmaceutical industry, pharmacist, pharmacist, higher education

Morphology of the spectral resonance structure of the electromagnetic background noise in the range of 0.1?4 Hz at <i>L</I> = 5.2

International audienceContinuous observations of fluctuations of the geomagnetic field at Sodankylä Geophysical Observatory (L = 5.2) were used for a comprehensive morphological study of the spectral resonance structure (SRS) seen in the background electromagnetic noise in the frequency range of 0.1?4.0 Hz. It is shown that the occurrence rate of SRS is higher in the nighttime than in the daytime. The occurrence rate is higher in winter than in summer. The SRS frequencies and the difference between neighbouring eigenfrequencies (the frequency scale) increase towards nighttime and decrease towards daytime. Both frequency scale and occurrence rate exhibit a clear tendency to decrease from minimum to maximum of the solar activity cycle. It is found that the occurrence rate of SRS decreases when geomagnetic activity increases. The SRS is believed to be a consequence of a resonator for Alfvén waves, which is suggested to exist in the upper ionosphere. According to the theory of the ionospheric Alfvén resonator (IAR), characteristics of SRS crucially depend on electron density in the F-layer maximum, as well as on the altitudinal scale of the density decay above the maximum.We compared the SRS morphological properties with predictions of the IAR theory. The ionospheric parameters needed for calculation were obtained from the ionosphere model (IRI-95), as well as from measurements made with the ionosonde in Sodankylä. We conclude that, indeed, the main morphological properties of SRS are explained on the basis of the IAR theory. The measured parameters of SRS can be used for improving the ionospheric models