Effect of blueberry (vaccínium myrtíllus) leaves extract, obtained by microwave heating on the dynamics of animal fat oxidation processes

The potential of antioxidant properties of blueberry leaves extract (vaccínium myrtíllus) that grows in the Trans-Baikal region has been studied in this work. In order to increase the efficiency of extraction of biologically active substances with antioxidant properties, this extract was obtained with the help of microwave field. The optimal parameters for the extraction of active substances from the blueberry leaves with the help of electromagnetic microwave field have been defined. The influence of the power of the electromagnetic field and the duration of the process of blueberry leaves extraction on the efficiency of extraction of biologically active polyphenolic substances has been studied. The following parameters of the technology for blueberry leaves extraction were obtained: extraction with a water-alcohol solution with a concentration of 40% in the ratio of raw materials to extractant as 1 to 5, with duration of stirring as long as 30 minutes, then the application of an electromagnetic field of microwave heating with a power of 850W for 8–10 minutes long. Blueberry leaves extract is a clear liquid with a high content of polyphenols, of rich brown color, tart taste, without bitterness. The antioxidant potential of the obtained extract has been studied. To do this, the extract has been added into the finely ground animal fat and left for storage in a closed dark container. During storage, the dynamics of the peroxide number has been measured, as this value characterizes the degree of lipid oxidation. It has been found that blueberry leaves extract inhibits the process of animal fat oxidation due to the action of biologically active substances that feature antioxidant properties

Light scattering from an amplifying medium bounded by a randomly rough surface: A numerical study

We study by numerical simulations the scattering of $s$-polarized light from a rough dielectric film deposited on the planar surface of a semi-infinite perfect conductor. The dielectric film is allowed to be either active or passive, situations that we model by assigning negative and positive values, respectively, to the imaginary part $\epsilon_2$ of the dielectric constant of the film. We study the reflectance ${\cal R}$ and the total scattered energy ${\cal U}$ for the system as functions of both $\epsilon_2$ and the angle of incidence of the light. Furthermore, the positions and widths of the enhanced backscattering and satellite peaks are discussed. It is found that these peaks become narrower and higher when the amplification of the system is increased, and that their widths scale linearly with $\epsilon_2$. The positions of the backscattering peaks are found to be independent of $\epsilon_2$, while we find a weak dependence on this quantity in the positions of the satellite peaks.Comment: Revtex, 9 pages, 9 figure

Organization of structured interaction on the base of psychographic characteristics within the model of personality traits DISC

The paper discusses impact factors assuring the change in the efficiency of structured interaction at enterprises and in organizations. Methodological tools included a pilot study based on the model of different personality traits (DISC). Participants of the study were 47 representatives of small work teams in companies of Siberian region. The paper interprets a correlation between the efficiency of structured interaction in work teams and social personality traits. The use of training forms aimed at adjusting a social model of work teams is said to be restricted. An interrelation between team building based on psychographic traits and application of latest organization principles of structured interaction was ascertained according to analysis data

The lack of confidence to vaccination as information planting

The key requirements to vaccine are its safety and efficiency. Nowadays, when issue of vaccination is extremely acute, certain citizens began voluntarily to refuse important procedure, not becoming thoughtful that they endanger both themselves and other people. The purpose of the study is to specify the arguments and methods of circulation of anti-vaccination propaganda and to find out scientific counterarguments. Actually, there is sufficient data concerning lack of confidence to vaccination and vaccine prevention of infectious diseases. The systematic qualitative review of publications on issues of interest was carried out. It is established that lack of confidence to vaccination is maintained artificially and can be characterized as an information virus. The information throw-ins of fake-news about danger of vaccine and harm of vaccination undermine population trust to health care and vaccine prevention. The problem continues to be actual and controversial. So, every individual is independently to determine one's attitude to vaccination and to take charge of one's own health. Also, a number of facts is presented refuting convictions of anti-vaccinators

REGIONAL VACCINATION PROGRAM FOR THE PREVENTION OF HPV-ASSOCIATED DISEASES IN THE KHMAO-YUGRA

Abstract. Unlike other malignancies, only for cervical cancer a viral etiology in all cases has been proved. This evidencing a unique opportunity to prevent this type of cancer by vaccination against HPV. Implementation of preventive vaccination against HPV infection in routine clinical practice will reduce cancer risk in population and decrease the probability of early cervical cancer and other HPV-associated diseases. In 2014 Ugra actively started school vaccination program for teenage of 12 years-girls

STUDY OF PHARMACOLOGICAL ACTIVITY OF THE DRY EXTRACT OF RED GRAPE LEAVES (VITIS VINIFERA L.)

The article are presented the results of studying of the pharmacological activity of the dry extract of red grape leaves (Vitis vinifera L.). The extract has showed anti-aggregation, anti-inflammatory, decongestant, analgesic, capillaroprotective properties. The dry extract of red grape leaves can be recommended for clinical trials in diseases associated with vascular disorders, including chronic venous insufficiency

ТЕХНІЧНИЙ СТАН МЕЛІОРАТИВНИХ СИСТЕМ, ЩО ЗНАХОДЯТЬСЯ В ЗОНІ ОБСЛУГОВУВАННЯ РОВР У РІВНЕНСЬКІЙ ОБЛАСТІ

В статті висвітлено технічний стан меліоративних систем Рівненської області та проаналізовано заходи з покращення меліоративного стану осушуваних земель

Pluripotency gene network dynamics: System views from parametric analysis.

Multiple experimental data demonstrated that the core gene network orchestrating self-renewal and differentiation of mouse embryonic stem cells involves activity of Oct4, Sox2 and Nanog genes by means of a number of positive feedback loops among them. However, recent studies indicated that the architecture of the core gene network should also incorporate negative Nanog autoregulation and might not include positive feedbacks from Nanog to Oct4 and Sox2. Thorough parametric analysis of the mathematical model based on this revisited core regulatory circuit identified that there are substantial changes in model dynamics occurred depending on the strength of Oct4 and Sox2 activation and molecular complexity of Nanog autorepression. The analysis showed the existence of four dynamical domains with different numbers of stable and unstable steady states. We hypothesize that these domains can constitute the checkpoints in a developmental progression from naïve to primed pluripotency and vice versa. During this transition, parametric conditions exist, which generate an oscillatory behavior of the system explaining heterogeneity in expression of pluripotent and differentiation factors in serum ESC cultures. Eventually, simulations showed that addition of positive feedbacks from Nanog to Oct4 and Sox2 leads mainly to increase of the parametric space for the naïve ESC state, in which pluripotency factors are strongly expressed while differentiation ones are repressed