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Background and Study: The modern type of competitive activity of qualified athletes of acrobatic rock and roll is undergoing contradictory changes in the content of the competitive program “Acrobatics” of the category “Main class contact style” due to an increase in the static performance of acrobatic elements, their number in combinations, where a loss of dynamics in the implementation of the competitive program is observed, which contradicts the definition of “rock and roll” as a dance where the acrobatic elements performed are the emotional, culminating accents of the dance figures. The main purpose of the study is to identify the patterns of the evolutionary process of the content of competitive programs of qualified acrobatic rock and roll athletes. Material and methods. As a result of the study, a comparative analysis of video materials of the final part of the competition was carried out: the final of the Ukrainian Championship in the category “Basic class contact style” (2010) 6 pairs (n=12); final of the Ukrainian Championship in the category “Basic Contact Style Class” (2023) – 6 pairs (n=12); final of the World Championship category “Basic freestyle class” (2011) –7 pairs (n=14); final of the World Championship category “Basic freestyle class” (2020) – 7 pairs (n=14). Results. During the analysis of viewing video materials of the final part of the Ukrainian and World Championships, structural changes were identified that affected the percentage of components of the competitive program “Acrobatics” in the category “Basic class contact style”, where acrobatic elements and their combinations with a large number of their components become a priority in the competitive program in relation to the structure of the competitive program “Acrobatics” of the category “Main class free style”. Conclusions. The evolutionary process of the content of the competitive program in acrobatic rock and roll has been identified, which is carried out due to changes in the Competition Rules, the implementation of new achievements of choreographic different styles of dance figures and the search for extreme, optimally adjusted motor actions in performing complex (high-risk) actions, which in the future involves changes and differentiation of the components of the educational and training process of qualified acrobatic rock and roll athletes.

Стаття присвячена висвітленню проблемних аспектів впровадження штучного інтелекту у сфері юриспруденції, зокрема в окремих галу­зях права. Зважаючи на стрімкий розвиток мож­ливостей нейронної мережі, штучний інтелект виступає інструментом швидкого виконання за­дач та обробки інформації в різних сферах су­спільства, в тому числі у юриспруденції. Тому для всебічного аналізу необхідно виділити про­блемні області реалізації такого явища. Зазначено, що на сьогодні відсутній єдиний підхід до визначення поняття штучного інтелек­ту. Автори наводять декілька дефініцій дано­му поняттю задля найбільш повного розуміння сутності штучного інтелекту. В законодавстві відсутній нормативно-правовий акт, присвя­чений питанню суті та порядку використання штучного інтелекту, що і породжує такі диле­ми. Незважаючи на широке використання мож­ливостей штучного інтелекту серед громадян, відсутні зацікавленість, фінансування та розро­блення навчальних методик щодо ефективного застосування штучного інтелекту у професійній діяльності з боку владних органів. Також наво­диться, що впровадження штучного інтелекту у професійну діяльність вимагає кадрового забез­печення фахівцями, які зможуть обслуговувати програмне забезпечення. Проаналізовано проблематику впровадження штучного інтелекту у сфері судочинства. Вико­ристання штучного інтелекту судами загрожує підривом автономії судів та незалежності суддів. Штучний інтелект не здатний всебічно оцінити докази та прийняти рішення в силу етичних та моральних норм. Відкритими залишаються пи­тання прозорості судів, гарантування осново­положних прав та свобод людини, програмної надійності. Розглянуто правовий статус штучного інте­лекту у цивільному праві. Оскільки штучний ін­телект здатний створити твір, залишаються від­критими питання захисту авторських прав, які використовує штучний інтелект та юридичної відповідальності у випадку порушення автор­ських прав. Дискусійною та неоднозначною те­мою є визначення штучного інтелекту суб'єктом чи об'єктом у цивільних правовідносинах. Визначено, що впровадження штучного інте­лекту у кримінальному провадженні може ста­ти чинником збільшення кібератак на нейронну мережу з метою викрадення, знищення, опри­люднення даних.

Introduction. Atypical terminology for the monarchies of the Arab East appears at the constitutional and legislative level. If democratization after the Arab Spring was considered mainly as the construction of a "facade of democracy", nowadays there are institutional manifestations of the introduction of elements of democratic government, institutions of public power, in particular, constitutional courts, which are atypical for Arab states, are being formed. The purpose of the study is to reveal the specifics of establishing and implementing the principles of the rule of law, legality, and democracy, as well as issues of guaranteeing constitutionality in Jordan, Kuwait, Qatar, and Bahrain. The methodological basis of the research is a philosophical dialectic-materialist approach, which involves consideration of the implementation of the principles of the rule of law, legality and democracy in the conditions of the reform of the state system, as an objective social reality that was formed and constantly evolves under the influence of internal and external contradictions along with the development of Arab society. The following methods are also applied: formal-legal, comparative-legal, socio-cultural analysis. The author makes a warning about the inadmissibility of the literal perception of new legal concepts and institutions introduced in these states, without clarifying their true meaning and understanding the peculiarities of the state system. Brief content. State policy and strategic development plans directly indicate the principles of the rule of law, legality and democracy as strategic goals. The texts of the constitutions regarding the establishment of the relevant principles were analyzed, and the strategic goals of the Persian Gulf monarchies regarding the implementation of the principle of the rule of law were revealed. An analysis of the legislation on the activity of constitutional courts was carried out, and a review of the practical activity of the constitutional courts of the monarchies of the Arab East was carried out. Conclusions. The principle of the rule of law is not established at the constitutional level. The principle of legality, as the principle of activity of public authorities, is derived from the text of constitutions. The principle of the rule of law has also not been constitutionally enshrined, however, the desire for justice and ensuring human rights, equality of rights and freedoms, inviolability of the person, independent activity of judges is determined at the level of constitutions. The principle of democracy is directly enshrined in most constitutions. When making decisions regarding the state-legal life of the IAS, the constitutional courts are guided by the constitution and international legal standards of human rights without reference to the provisions of Sharia and Islamic traditions. At the same time, the significant influence of the monarch and the government on the order of formation of the constitutional courts of the Persian Gulf is noted. The principle of the rule of law in its content is not reduced to the principle of legality, but is considered as a guiding principle of democratization, building a just and safe society. The parallel existence of Sharia courts and secular courts, the formation of constitutional courts explains the simultaneous application of the concepts of "supremacy of Sharia", "rule of law" and "constitutionality". In the monarchies of the Arab East, there is a dual system of supremacy: the supremacy of Sharia and the supremacy of law. They exist and develop in parallel and are not mutually exclusive. Ensuring justice and equal development conditions for all citizens is a common goal for both systems.

The hypothesis of the dependence of the value of the Gibbs surface energy on the ratio of molecular masses mСаО/nAl2О3 (ΔG=f(mСаО/nAl2О3)) is confirmed, and it is proposed to determine the effectiveness of its influence on the hydration process of minerals of composite sulfoaluminate systems by means of the mineral coefficient KСА= Сm/An, where Сm/An is the Gibbs surface energy, KСmАn is the mineral coefficient of the system. This makes it possible to arrange the minerals of the CaO-Al2O3 system in the following order: СА2, СА, С12А7, С3А respectively with surface energy, kJ/mol – 24.7; 51.86; 141; 145 and later use the coefficients for researching multicomponent systems. Research on the influence of nanodisperse additives in the composition of the system (Al2O3-CaO-SO3-H2O) is aimed at managing the hydration. Formation of a strong structure is associated with the creation of a gel phase and hydroaluminates of cubic crystal system − С3АН6, as well as a stable ettringite phase. With the help of nanomodifiers, the formed blocks are freely joined in the cement matrix, which leads to a decrease in internal stresses in the not yet formed cement system. In addition, there is an assumption on doping of C3AŚH32 and C3AŚH12 crystals.

The police are one of the actors involved in ensuring national security. Therefore, the relevance of this article stems from the need to ensure effective performance. The issue of studying the experience of countries in this field is relevant to find the best models to assess the activities of these structures, which will contribute to a better performance of tasks assigned to them by law - this is one of the tools to assess the performance of the police. The aim of the article was to investigate the peculiarities of police performance assessment, thereby identifying practices that can improve the assessment of police performance. The objective was achieved by using dogmatic, statistical, comparative legal methods and a system-structural approach. The authors revealed the peculiarities of police assessment in Ukraine, the USA, Canada, France and the UK. The focus is on the assessment of police performance based on the level of citizens' trust and statistical data. The conclusion is made that citizens' trust in the police is necessary for the effective performance of its tasks. It is noted that the use of statistics to draw an objective conclusion about police performance is questionable because of the ability of police management to manipulate the data. It is concluded that each of these areas needs significant improvement. The findings are complementary to previous studies and have implications for improving the assessment of Ukrainian police performance and police performance in foreign countries.

Introduction. The processes of informatization of society, reform of state institutions and transformation of the economic system of Ukraine identify new problems and set new challenges for regulating the labor market and employment on the basis of public-private partnership, including by bringing to all labor market actors relevant information from verified sources. Given the signing of the Association Agreement with the European Union, Ukraine should take into account the experience of Eastern European countries that have been in similar transition conditions and have shown significant progress, in particular in overcoming the problems and threats in the labor markets that they have encountered in the process of European integration. Purpose and objectives. There is a necessity to justify the expediency of integration of information of subjects in the labor market of Ukraine for the purpose of formation of uniform information support of the labor market that will promote legal productive employment of citizens. Methodology. The article is based on international legal acts, laws and bylaws of Ukraine in the field of employment and regulation of labor market processes in the context of the functioning of a single information environment, formed on the basis of public-private partnership. Both general and special methods were used for the research: methods of analysis and synthesis, descriptive method, methods of induction and deduction. Results. The article analyzes the regulation of the European labor market by integrating the capabilities of national public employment services, the implementation of equal opportunities in free labor mobility for European workers. The data and experience of the countries of Eastern Europe are given. The institutional and legislative aspects of the functioning of private mediation in the domestic labor market are considered and it is proved that in Ukraine there is currently no regulatory influence of the state on the activities of private mediation in this market, and regulatory support in this area is imperfect. It is studied that information flows of private intermediaries, including job search and recruiting websites, operate independently of state intermediaries, and the public does not fully have up-to-date information on the state and needs of the domestic labor market. The article highlights the role of the government and the State Employment Service in the formation of information support of the labor market, compares the published data, provides relevant recommendations of the International Labor Organization and foreign experience. Conclusions. The information published in Ukraine by private labor market intermediaries needs full attention, as its connection with informal employment is not excluded. Given the impact of globalization challenges on the functioning and development of the domestic labor market, it is proposed to standardize the activities of private labor market intermediaries, including job search and recruiting websites, by including their data on labor supply and demand in the domestic labor market. For Ukraine, the experience of the European countries in cooperation between public and private intermediaries in the labor market, based on the creation of single information support of the labor market, including through joining the EURES system, is relevant.

The object of research is the processes of structure formation and modeling of the properties of a specialized binder. The development of new binding materials based on production waste with high early strength indicators could make it possible to speed up construction period and is one of the urgent tasks at present. This study focused on the creation of binders based on the СаО–Fe2O3 system. The developed binder of the СаО–Fe2O3 system has the following composition: limestone – 26 %; red slime – 74 %, which has a dense fine-porous structure and high early strength indicators – 22.5 MPa with a density of 1960 kg m³. There is also an increase in the average density of samples annealed at a temperature of 1200 ℃ for 60 minutes, ground and mixed with water, in comparison with samples fired at 1100 ℃ for 60 minutes, by 500 kg/m³, due to new formations. The prospect of using modified composite binders with special functional properties has been substantiated. The use of production waste based on the СаО-Fe2O3 system could make it possible to obtain materials with high physical and mechanical properties, which makes them promising for application in various areas of the construction industry. The development of such binders will help reduce the environmental impact of the construction industry, owing to the use of affordable and effective components. This approach will not only contribute to the improvement of the quality of building materials but also help reduce the ecological burden on the environment by using alternative resources and industrial waste. The developed binder could be used for the development of solutions for 3d printing, as well as repair of concrete coatings [ABSTRACT FROM AUTHOR]

The problem of complete mineral and vitamin nutrition in rabbit breeding is relevant today, despite new discoveries, and research in this direction continues both in Ukraine and around the world. The paper presents experimental data from the results of research to study the effect of different doses of vitamin and mineral supplement “Tekro” in the diets of young rabbits on their productivity, slaughter quality and biological value of rabbit meat. The obtained data of body growth, massometric indicators of carcasses and internal organs of rabbits of experimental groups after slaughter indicate a positive effect of vitamin-mineral supplement “Tekro” on the intensity of development of the body and individual internal organs, which contributes to increased metabolic processes and weight gain in animals research groups. Feeding vitamin and mineral supplements to rabbits of experimental groups of the New Zealand breed for 45 days contributed to a better transformation of feed nutrients into products. In rabbits of the 3rd experimental group, which together with basic ration were fed 3.5 % of the premix “Tekro” at 90 days of age, the highest rates of body weight were recorded, which differed by 8.89 % compared to the control group. In a set of indicators that characterize the nutritional value of rabbit meat, we studied sensory indicators that characterize the quality of rabbit meat: taste, color, pH, juiciness, moisture content, elasticity, aroma, “marbling”, etc. It was found that in the appearance of carcasses and muscles in the control group, the samples scored 8.4 points. In the 3-rd and 4-th experimental groups, the number of points on this indicator was higher by 1.2 %. The difference was a trend. Examining the aroma of meat, it was found that in the control of this indicator, the samples scored 7.8 points. In meat samples from experimental groups 3 and 4, the aroma was more identical to natural, so the samples received 2.6 % higher scores. Samples from 3 experimental groups scored the most points in terms of taste. Compared with the control, the figure was higher by 3.6 %. Examining the juiciness of rabbit meat, it was found that samples obtained from carcasses 2 and 3 of the experimental group tended to increase this indicator. Summing up the data, it was found that the highest overall score was found in meat samples from 3 experimental groups. The difference with the control was within the trend and amounted to 2.4 %. Feeding rabbits vitamin and mineral supplements to rabbits helps to obtain good quality meat products with high culinary properties. No data were available to support the effect of vitamin and mineral supplements on compound feed on the synthesis of toxic substances in muscle tissue or the deterioration of rabbit meat. The biological value of muscle samples from rabbits of the 2-nd experimental group did not differ from the control data. The increase was only 0.11 %. It was found that the biological value of muscle tissue from animals of the 4th experimental group was greater than in the control. The difference was 2.6 % Meat obtained from rabbits of the 3rd experimental group, which were fed compound feed with a content of mineral-vitamin supplement “Tekro” 3.5 %, in biological value outweighed the control indicators. The difference was not significant and amounted to 4.1 %. The use of different doses of vitamin and mineral supplements in the feed of young rabbits did not lead to significant changes in the quality of raw hides and furs

The article presents the results of three linguistic associative experiments. The purpose of this research is to determine the influence of specific linguistic units – phonetic nonce words (occasionalisms) – on the perception of modern Ukrainian poetical discourse by addressees (readers). As stimuli for linguistic analysis of phonetic occasional units in modern Ukrainian poetical discourse used the most frequent phonetic nonce words in their graphic actualization (total 16 different stimuli). The three experimentally groups of respondents include 105 students of three Poltava high schools. A result of these experiments are 1684 reactions, among which 1146 (68%) – positive, 300 (18%) – negative, 238 (14%) – neutral. The lowest per cent of neutral reactions is motivated because phonetic nonce words are power intensifiers for the expressiveness of sound background in poetical discourse. The phonetic nonce words positively influence the perception of modern verbal discourse by addressees. The special role in decoding of sound information belongs to acoustic-articulator characteristics of vowels and consonants.

У статті наведено результати лінгвістичного аналізу сучасного українського поетичного дискурсу О. Ірванця, В. Неборака, Ю. Андруховича, В. Терена, В. Цибулька, І. Низового, О. Левченка, Ю. Іздрика та ін. Виокремлено основні стилістичні функції гендіадісу: звукове обігравання географічних назв та власних імен осіб; моделювання ономатопеї; власне фонетична гра; функція семантико-стилістичного синоніма. Установлено, що найпродуктивнішим типом гендіадісу є асемантична фонетична гра. Підкреслено, що поети часто підсилюють фоностилістичний ефект гендіадісу алітераціями та асонансами, які дублюють загальне акустичне тло вірша.

The paper mainly highlights the features of older preschool children’s acquaintance with the professional activities of adults. The theoretical and methodical bases of the researched issue are generalized. The structural components of the formation of preschoolers’ ideas about professions are highlighted. The results of a pilot study to determine the level of older preschool children’s acquaintance with the occupations of adults are presented. The influence of the place of residence on the depth of children’s knowledge about the professional activity is found out. It is revealed that older preschool children understand the meaning of words that characterize the adults’ professional activities but rarely use them in their active speech. Based on the results obtained, it is stated that children in urban areas are more familiar with the professions that have emerged in recent years (beautician, blogger, baker, manager, cameraman, photographer, cashier, president and taxi driver), but ignore the agricultural and factory professions. Preschoolers in rural areas are more inclined to occupations related to technology and agriculture. The influence of gender on children's preferences for choosing a particular profession is analyzed. It is observed that girls prefer professions related to care, service (doctor, cook, hairdresser and veterinarian), for boys the most desirable professions are heroic, courageous and professional (policeman, firefighter and driver). It is concluded that the professions well known to children in the 20th century are hardly known to modern children (astronaut and postman).

Using Russian longitudinal data for 1994–2018, we document a secular decline in consumption and income inequality. Although within‐cohort inequality is also declining, the life‐cycle inequality profiles of income and consumption are surprisingly flat. A calibrated life‐cycle model with incomplete markets, high initial variance of the persistent income component, and moderately persistent income shocks is consistent with nearly flat life‐cycle inequality profiles and the puzzlingly large insurance role of assets found in the Russian data. This is in contrast to the standard calibrations that fail to match the life‐cycle inequality profiles and the panel‐data evidence on consumption insurance. [ABSTRACT FROM AUTHOR]

Background and Study: The modern type of competitive activity of qualified athletes of acrobatic rock and roll is undergoing contradictory changes in the content of the competitive program "Acrobatics" of the category "Main class contact style" due to an increase in the static performance of acrobatic elements, their number in combinations, where a loss of dynamics in the implementation of the competitive program is observed, which contradicts the definition of "rock and roll" as a dance where the acrobatic elements performed are the emotional, culminating accents of the dance figures. The main purpose of the study is to identify the patterns of the evolutionary process of the content of competitive programs of qualified acrobatic rock and roll athletes. Material and methods. As a result of the study, a comparative analysis of video materials of the final part of the competition was carried out: the final of the Ukrainian Championship in the category "Basic class contact style" (2010) 6 pairs (n=12); final of the Ukrainian Championship in the category "Basic Contact Style Class" (2023) - 6 pairs (n=12); final of the World Championship category "Basic freestyle class" (2011) -7 pairs (n=14); final of the World Championship category "Basic freestyle class" (2020) - 7 pairs (n=14). Results. During the analysis of viewing video materials of the final part of the Ukrainian and World Championships, structural changes were identified that affected the percentage of components of the competitive program "Acrobatics" in the category "Basic class contact style", where acrobatic elements and their combinations with a large number of their components become a priority in the competitive program in relation to the structure of the competitive program "Acrobatics" of the category "Main class free style". Conclusions. The evolutionary process of the content of the competitive program in acrobatic rock and roll has been identified, which is carried out due to changes in the Competition Rules, the implementation of new achievements of choreographic different styles of dance figures and the search for extreme, optimally adjusted motor actions in performing complex (high-risk) actions, which in the future involves changes and differentiation of the components of the educational and training process of qualified acrobatic rock and roll athletes. [ABSTRACT FROM AUTHOR]

It is known that existing systems of regulation of energy homeostasis provide adequate needs of the body, depending on both the receipt and use of energy. Moreover, the organization of energy supply has its own characteristics in insulin-dependent and insulin-independent tissues. The main thing in the organization of energy supply is the achievement of the principle of compliance with the functional needs of the body, that is, the maintenance of the functional and metabolic continuum (FMC) We studied the metabolic parameters of FMC in healthy people and patients with type 2 DM and patients with hypertension against the background of type 2 DM according to the study of some indicators of blood plasma. The identified features, in our opinion, are one of the first manifestations of FMC disorder due to insulin resistance With the advent of insulin deficiency, there are increasing disturbances of energy metabolism, which are mainly caused by endothelial dysfunction and neuro-hormonal regulatory shifts of a stressful nature. The consequences or manifestations of these processes can probably be found in all environments of the body: blood, saliva, condensed air, that is, they have a systemic character.

According to our hypothesis, one of the mechanisms in the development and progression of cardiovascular diseases may be metabolic changes that are inadequate with the functional responses of adaptation, indicating the disruption of the functional and metabolic continuum (FMC). We suggested to study the daily rate of change in metabolism and hormonal regulation (morning vs. evening) in the saliva to diagnose the FMC disorders. In order to detect the FMC changes in patients with diabetes mellitus (DM2) complicated by arterial hypertension (AH), we studied the parameters of FMC and endocrine regulation in the saliva in the morning and in the evening as compared to patients with diabetes mellitus. Previously, we have shown that in compensated DM2, there are changes in the energy metabolism, induced by hormonal regulation. These changes can be controlled with daily saliva monitoring. The study of the daily rhythm of in the saliva parameters makes it possible to conclude that in DM2, and especially in its progress, as evidenced by the accession of hypertension, there are disorders of FMC. One of its consequences is the development of oxidative stress, which is considered as one of the leading secondary mechanisms in the pathogenesis of DM2.

This study examined gender, prior tobacco use, and social-environmental factors as predictors of intentions to use tobacco (cigarette smoking and/or smokeless tobacco [ST]) after a forced period of abstinence among U.S. Air Force (USAF) trainees. Trainees completed 8½ weeks of basic military training (BMT), then 4 weeks of Technical Training; both required abstinence from tobacco. A cross-sectional survey of 13,514 USAF trainees (73% male, 90% age 18–24, 43% prior tobacco use) was conducted at the beginning of the 4-week Technical Training period. Overall, 17% of the sample reported future tobacco use intentions. Intentions for future tobacco use were less prevalent among non-tobacco users before BMT (1%) than those reporting any tobacco use (37%). From a multivariable logistic regression model predicting intentions to use any tobacco after Technical Training, significant two-way interaction effects were detected between gender, and tobacco use prior to BMT (p = 0.0001), and number of close friends who smoked cigarettes (p = 0.018), and number of close friends who used ST (p = 0.029). Among non-tobacco users before BMT, females were more than twice as likely as males to report tobacco intentions (Odds Ratio = 2.2, Bonferroni corrected 95% CI: 1.14.4, p = 0.011); no gender differences were detected among tobacco users. For females, but not males, having more friends who smoked was associated with greater likelihood of tobacco intentions (Bonferroni corrected p ≤ 0.05). In contrast, for males, but not females, having more friends using ST was associated with greater likelihood of tobacco intentions (Bonferroni corrected p

In our previous studies, we have shown that salivary parameters differ during the day when one compares the morning and evening samples. That is, the analysis of biochemical components in saliva can be used to monitor the general state of the body's health, which is especially important in metabolic disorders that occur in type 2 diabetes mellitus (DM2). It is possible to assume that the study of daily metabolic changes in patients with type 2 diabetes will help to determine the mechanisms of functional and metabolic continuum (FMC) in this pathology. Patients with diabetes mellitus present with certain changes in saliva as compared to apparently healthy people. That is, although the daily rhythm of metabolism in saliva remains the same, the metabolic changes occur against this background. They are not significant, but their presence allows us to conclude that even in compensated type 2 DM, changes in metabolism are observed, and this can be explained by the disrupted carbohydrate metabolism with the mobilization of both lipid and protein metabolism. These changes can be observed in the parameters of metabolism in saliva and, especially in the form of a disrupted daily rhythm. Thus, even in compensated type 2 DM, there are changes in the energy metabolism, induced by hormonal regulation. These changes can be controlled using the daily saliva monitoring.

Military personnel are a subgroup of young adults at risk for tobacco and nicotine containing product (TNCP) use. This study of US Air Force (USAF) trainees who were never users of TNCPs examined gender, peer tobacco use, and tobacco use intentions as predictors of TNCP initiation after Basic Military Training (BMT). We used a longitudinal cohort assessment study design with baseline and 1-year surveys completed (2011–2016) among 2393 USAF trainees: 73% men, 95% aged 18–25 years, 36% racial minorities. Overall, initiation of any TNCP use at 1-year was 23% (20% women, 24% men). From a multivariable multinomial logistic regression model predicting TNCP use at 1-year follow-up, significant 2-way interactions were detected between gender and number of close friends using tobacco before BMT (p = 0.015), and between gender and tobacco use intentions (p

In recent years, the concept of functional-metabolic continuum (FMС) has been formulated, which indicates the relatively constant nature of metabolism and its parameters in the intercellular environment. Thus, in its turn, is closely and adequately connected to the functional activity of organs and cells, thus forming a single system – the continuum. In addition, the functional activity of key low molecular weight antioxidants in the tissues and biological fluids of the body may, to a large extent, indicate the adaptive abilities and reactions at the level of the entire organism. One of the possible approaches to FMC study, depending on the physiological activity of the body, is to determine the parameters of metabolism and regulatory molecules relative to the daily rhythm, i.e., their comparison in the morning and in the evening, when the changes in the body over the day are observed, in other words, when there is an overall load. The aim of this research was to examine the circadian rhythm of FMC in healthy people according to saliva study findings. Thus, the obtained results, firstly, represent the existence of daily changes in FMC, and secondly, constitute a possible information channel that can be used to study these changes, to determine and compare indicators in the morning and evening about the functional activity of the body involving the regulatory systems.

Modern information systems allow organizations to improve their efficiency, significantly reduce their costs and meet regulatory requirements. A good document management system is often regarded as all that is required, but additional protection measures are also needed to ensure that data is protected from unauthorized access and forgery. The purpose of this article is to modify the algorithms of cryptographic methods of protecting the integrity of a document using an electronic digital signature. Document management systems typically provide security and control access to documents in a controlled environment. However, when a document leaves a secure environment, it is easy to modify it. Unprotected documents do not allow to determine whether the document is authentic, who was the originator and the approver or has it been modified since its creation. The problem of keeping electronic documents from being copied, modified, and forgery requires specific approaches and methods of protection for its solution. One of the most common method of such protection in the world is an electronic digital signature (EDS), which confirms the authenticity, integrity its details and the fact of signing by a specific person of the document with the help of special software. Common encryption methods are based on factorization of large numbers (RSA, DSA, ElGamal) and discrete logarithmization (ECDSA, EdDSA, GOST R 34.10–2012). Each pair of keys consists of a private key and a public key. They are interdependent, but can be used separately. Usually, each pair of keys may belong to a specific key holder. The algorithm works in such a way that it is impossible for third parties to calculate the private key, even if they own the public key. Ref. 13, figure 6, table 3