Complete System Research Articles

Characteristics and Applications of Non-destructive Testing Technology in Bridge Engineering

The construction of bridge projects can promote economic exchanges between different regions and provide convenient transportation for people. The application of non-destructive testing technology has effectively improved the overall quality of bridge inspection work, providing a reliable guarantee for the development of the transportation industry. This paper elaborates on the specific principles, characteristics, and research status of ultrasonic testing technology, three-dimensional laser scanning technology, and radiographic testing technology in practical operations, and comprehensively compares the advantages and disadvantages of the three non-destructive testing technologies in bridge engineering. Ultrasonic testing technology has simple operation and low cost, but the detection results are not intuitive enough; three-dimensional laser scanning technology has high accuracy and good digital compatibility, but its cost is relatively high; Radiographic testing technology has a wide range of applications, and the detection results are relatively intuitive, but the detection efficiency is low. Finally, it is discussed that the current difficulties in using non-destructive testing technology in bridge engineering lie in high costs and inadequate integration. It is proposed to incorporate non-destructive testing technology into bridge design planning to form a more complete system.

Research on Environmental Safety Evaluation of Urban Parks Based on Analytic Hierarchy Process: A Case Study of Four Urban Parks in Fuzhou City

In this study, Analytic Hierarchy Process was used to construct the environmental safety evaluation level of physical spatial layout, social environment guidance and security technical means as the evaluation criteria. In addition, using the complete evaluation index system constructed after the weight value is given, the environmental safety of the four research object urban parks in Fuzhou city is evaluated, and the comprehensive evaluation grade is divided. The results show that: 1) The each evaluation index in the criterion layer is ranked from high to low as physical spatial layout (0.4097), security technical means (0.3244), social environment guidance (0.2659); 2) In the factor layer, the top 5 places in the overall weight value order of the evaluation index factors are CCTV monitoring (0.1040), organization of social activities (0.0840), lighting (0.0827), plant furnishing (0.0806), mixed crowd (0.0743); 3) In terms of environmental safety construction of the four research object urban parks in Fuzhou city, the comprehensive evaluation results are that Wenquan park is in Grade I (Very Good), Xihu Park and Chating Park are in Grade Ⅱ (Good), and Wangzhuang Nanhu Park is in Grade III (Average).

Complete Reduction Systems for Airy Functions

The computation of indefinite integrals in some kinds of “closed form”, the so-called symbolic integration, is an important and basic research subarea of computer algebra. After implementing Risch’s algorithm partly, it was realized that efficient algorithms can be achieved in parallel integration. One of the most famous algorithms is the Risch-Norman algorithm. However, this approach relies on an analytic with heuristic degree bounds. Norman’s completion-based approach provides an alternative for finding the numerator of the integral avoiding heuristic degree bounds. However, depending on the differential field and on the selected ordering of terms, it may happen that the completion process does not terminate and yields an infinite number of reduction rules. We apply Norman’s approach to the differential fields generated by Airy functions, which play an important role in physics. By fixing adapted orderings and analyzing the process in the concrete case, we present two complete reduction systems for Airy functions by finitely many formulae to denoting infinitely many reduction rules.

ОЦІНКА ВІДПОВІДНОСТІ У СФЕРІ ЗАЛІЗНИЧНОГО ТРАНСПОРТУ. МОДУЛЬ СV. НЕОБХІДНІСТЬ, ОСОБЛИВОСТІ ТА МОЖЛИВОСТІ ЗАСТОСУВАННЯ

Assessment of product compliance with the requirements of technical regulations is an important aspect of the technical regulation system of Ukraine, the legislative requirements of which, according to the Law of Ukraine On Technical Regulations and Assessment of Compliance, are aimed at protecting the life and health of people, animals and plants, protecting the environment and natural resources, ensuring energy efficiency, property protection, ensuring national security and preventing business practices that mislead the consumer (user). The action of this law is aimed at regulating relations that arise in connection with the development and adoption of technical regulations and the conformity assessment procedures provided for by them, their application in relation to products that are put into practice, placed on the market or put into operation, and in the cases specified in part according to the second Article 11 of this Law, is in use in Ukraine, as well as the implementation of a voluntary conformity assessment. The provisions of this law apply to all products available on the market of Ukraine (except for the exceptions provided by law), in particular, to railway transport. The law also regulates the compliance assessment according to certain procedures, the rules and procedure of which can be defined both in a separate document of the procedure and in a certain technical regulation. The article deals with the aspects of assessing the conformity of railway transport products in compliance with CV module. It is established that the conformity assessment according to the CV module is performed in combination with the SV module (type examination) and CH1 (conformity based on a complete quality management system and project study). The combination of the CV and CH1 modules is the most difficult one for assessment, but provides complete and objective information about the object of conformity assessment from development to the results of trial operation.

TRAINING OF FUTURE PHILOLOGISTS USING MODERN INFORMATION TECHNOLOGIES: CONCEPTUAL FUNDAMENTALS OF THE PROBLEM RESEARCH

The article substantiates the conceptual foundations of the problem of forming the professional competence of future philologists by means of modern information and communication technologies. Based on the analysis of the notion of the concept, its main features are defined (presence of a goal, a leading idea, the programmatic nature of the concept, prognostic essence). It has been proven that for the formation of the concept of professional training of future philologists by means of modern information and communication technologies, modern theoretical developments in the field of pedagogics are of great importance (the concept of “Language as unity”, the concept of “productive pedagogics” by M. Lipman, the pedagogics of multiliteracies, the concept of digitalization). The main characteristics of the pedagogical concept are defined as: subject relationships in the educational process; development of the educational environment of the institution of higher education and its external relations; development of a set of innovative pedagogical technologies of higher education institutions; development of the society of continuous education. The components of the concept of professional competence formation for future philologists by means of information and communication technologies are substantiated – relevance, purpose, contradictions, mechanism of implementation and assessment of the effectiveness of ICT in the pedagogical process. The leading idea of the research has been formulated: the formation of professional competence of future philologists (as specialists who implement native language and foreign language communicative processes in further professional activity) is determined by level, content, types and techniques of implementation of the resource of modern information technologies, combined into a complete scientific and methodological system, which is created, developed, and implemented in the informational educational environment of the higher education institution, taking into account the principles of its functioning in the post-postmodern society with the corresponding social order for a highly qualified specialist-philologist, and in the conditions of the crisis organization of the information space due to the risks and challenges of the last decade.

Seismic attributes and quantitative reverse reservoir simulations of shallow-marine eocene sedimentary fairways, extensional rifting Indus onshore petroleum system, southern Pakistan: Implications for hydrocarbon exploration

Quantitative reservoir characterization plays a vital role in exploring carbonate depositional systems. The subsurface vertical and lateral changes in the tectonics and sea level adversely impact the signatures of band-limited seismic data. The seismic amplitudes are very sensitive to these vertical and lateral tilts of the stratigraphy and sedimentology of the subsurface stratigraphic layers. The dynamical tectonic-based fluctuating sea creates vital seismic expressions of high amplitude. These seismic expressions can inversely infer the dense-fractured depositional parasequences, thickness, porosity, and lithological change for the accommodation space and the sedimentary influxes for the development of petroleum fairways. Hence, it becomes very challenging to predict whether the producing zone for hydrocarbons sourced from the wet-gas-bearing zones is a potential zone for hydrocarbon exploration or a light oil-bearing zone (WGZ or LOZ). Therefore, the development of reverse quantitative simulations of parasequences within the extensional regimes is always a very complex research problem during stratigraphic-based fuel exploration of thin-bedded carbonate systems. This research utilizes the spectral-based amplitudes along with the instantaneous waveform-based temperature-porosity stratigraphic simulations (WTPS) on middle-Eocene carbonates (MCARB), Pakistan. 18-Hz amplitudes detect the gas-bearing stratigraphic prospect of 230 km2 on the northern flanks. The 18-Hz-based WTPS has predicted the parasequences within the complete petroleum systems. 24 m thick progradational and laterally continuous and fractured reservoirs are deposited within the wet-gas-bearing zones (WGZ) throughout a rapidly falling sea and succeeding growth at 175 °F and 28% porosity pseudo-wells. Deposition of 15–20 m thick deep-marine transgressive shale has been completed throughout a rising sea level at a temperature of 125 °F and 12% poor porosity. There is a lateral change in the dense-fractured then low-velocity from 2.1 to 1.8 g/cc and 2670 to 1690 ms/s predicted by WTPS from the NE to SW zones of MCARB, which impacts the presence of 1.5 km of the regionally developed pure stratigraphic trap. The WGZ has a vertically resolved thickness of 24 m, which is appreciably above the resolvable magnitude threshold of 23 m. Hence, it implies that the extensive fall of sea level followed by the regional development of the accommodation space for the accumulation of WGZ carbonate stratigraphic units is at its accurate location within the sub-surface reservoir system. This workflow has robust consequences towards exploring petroleum systems, Onshore Pakistan. Hence, this workflow may serve as an exemplary move towards regional analogues aimed at world carbonate in extensional regimes.

Research on Access and Benefit-Sharing Regimes for Agricultural Genetic Resources in India

India is one of the richest providers of genetic resources in the world and it advocates that the sovereignty of genetic resources belongs to the state to realize the equitable sharing of the benefits of genetic resources. The study shows that India has built a relatively complete legal system for access to genetic resources and benefit-sharing. This system revolves around three major laws and regulations, with clear management regulations for domestic and foreign access to genetic resources, a definite form and proportion of benefit-sharing, and a clear management method for the distribution of benefits after acquisition. India’s achievements in institutional construction can act as a great reference for the management of access to genetic resources and benefit-sharing in China.

Methodological approaches to the study of the legislative foundations of the organization and functioning of the system of alternative ways of resolving public legal disputes and conflicts

The article states that the sphere of resolving public-law disputes and conflicts is insufficiently regulated and indicates that it requires further adoption of relevant legislative acts or amendments to current acts in this area. At the same time, it is noted that within the limits of improving the legislative regulation of the organization and functioning of the integrated system, the use of alternative methods of solving public-law disputes and conflicts should be based on a number of methodological dominants. Among them, it should be highlighted that there is an objective lag of the legislator from the needs of the dynamic development of social relations. In the sphere of formation of a complete system of alternative ways of solving public-law disputes and conflicts, this state of affairs is especially inherent, since there is a significant dynamic formation of new ways, rules, techniques, forms and methods of dispute resolution. In addition, a complex system formation that includes a set of various alternative ways of resolving public-law disputes and conflicts is currently not fully developed from the point of view of scientific research, each of the ways (forms, methods) of which has its own specificity, which needs its own a special approach to legislative regulation. At the same time, the application of innovative approaches, which are essentially those implemented within the framework of the system of alternative ways of resolving public-law disputes and conflicts, also require a corresponding approach to the application of the latest rules and techniques of legal (legislative) technology. Within the limits of legislative regulation, it should be taken into account that the institution of alternative methods of solving public-law disputes and conflicts is not an invention of the domestic legal system, but instead arose and found its active development in foreign countries.
 It has been established that today there is insufficient regulation of the sphere of solving public­law disputes and conflicts. In this regard, it requires the further adoption of relevant legislative acts, or the introduction of changes to the current acts in this area. But at the same time, it is necessary to proceed from the need to observe a number of methodological approaches and key dominants regarding the improvement of the legislative regulation of the organization and the functioning of a holistic system of applying alternative methods of solving public-law disputes and conflicts.

Зарождение вихреобразования на границе кругового цилиндра при его обтекании потоком вязкой жидкости

The paper considers the problem of the generation of vortex formation on the surface of a circular cylinder placed in a flow of incompressible viscous fluid. To study this process, a new time-iterative approach is formu-lated for solving the 2D problem of flow around the circle based on the BIE method with Green's functions for the outer part of the cylinder with the Dirichlet boundary condition on its surface. A new approach, based on the transient Navier-Stokes equation in the variables stream function - vortex, using classical methods of potential theory and the boundary element method, allows us to obtain a complete system of three integral equations that determine the fields of stream functions and vorticity at a new time step, if these fields are known from the previous step. The assumption about the initial unexcited state of the flow (the vorticity function in the entire flow region is zero) allows us to obtain an analytical solution at the first time iteration step. The analysis of the obtained solution depending on the time step allows us to formulate a hypothesis about the nature of the generation of vortex formation on the surface of the circular cylinder in a flow of incompressible viscous fluid. The results obtained describe the appearance on the surface of the cylinder of two generalized vortices, having infinitely high intensity and infinitely small localization near the surface of the cylinder, which “instantly” break away from the surface of the cylinder, with a significant decrease in intensity, but with a large coverage of the flow around the cylinder.

Organizational and legal provision for supervision and control over compliance with labor law in Ukraine: international standards and national practice

The purpose of the article is to study the state and trends in the development of organizational and legal support for supervision and control of compliance with labor law in Ukraine through the prism of international standards. To achieve the goal there are defined the following tasks: to reveal the content and meaning of the concept for the integrated system of labor inspection; characterize the impact of international standards on the organizational and legal provision of supervision and control over compliance with labor law in Ukraine; determine the trends in the development of organizational and legal support for supervision and control in the field of labor. There were used general philosophical method of dialectics, systemic and structural-functional general scientific methods, hermeneutic, formal-legal and prognostic special-legal methods during the research. Their combination made it possible to investigate the content and purpose of the integrated approach to labor inspection, initiated and supported by the International Labor Organization. Such an approach covers occupational safety and hygiene, labor relations, working conditions, and provides for the formation of a complete system of labor inspection with the integration of its administrative, procedural and technical elements through simultaneous implementation of measures at the international, national (state), industry (sectoral) and production (local, operational) levels to increase the effectiveness of labor rights protection. The trends of the organizational and legal provision for supervision and control over compliance with the labor law in Ukraine were analyzed from the point of view of the analysis for the legal instruments of the mentioned levels. Firstly, functional integration/concentration of functions in a single state labor inspection service. Secondly, coordination and consolidation of the efforts of the State Labor Service, state bodies that have joint tasks with the labor inspectorate, local self-government bodies, and social partners. Thirdly, modernization of the national system of managing the safety of workers at work based on the principles of proactivity, prevention of industrial risks, and strengthening the role of the employer's internal control in ensuring proper, safe, and dignified working conditions. Fourthly, there is a tendency to expand the practice of combining surveillance (control) measures with preventive, informational, advisory, and analytical efforts

Assessing and exploiting the interaction between ventilation and geothermal systems in an underground data centre

Digitalization and population growth lead to the development of underground data centres, while simultaneously current climate goals stimulate the development of renewable energy sources. In this framework, this study evaluates the so far unexplored domain of geothermal activation of an underground data centre using numerical modelling. Computational fluid dynamics simulations are used to properly represent the air domain. The focus of the work lies on the analysis of the interaction between ventilation and geothermal systems in the data centre, a topic that has never been evaluated for energy geostructures in general. This leads to the possibility of suboptimal air ventilation system design and thus a potential for optimization, especially in underground data centres where daily ventilation requirements are determined by air temperature limitations. The analysis first explores the sensitivity of geothermal potential to varying ventilation conditions (airflow velocities), heat release conditions in the data centre and fluid velocities in the pipes of the geothermal activation. The impact of geothermal activation on air temperature in the underground data centre cavern is then assessed and thus the consequent impact on the ventilation system. Geothermal activation of a section of the cavern leads to a regional decrease in air temperature, which allows optimization of the whole system by reducing mechanical ventilation requirements while still respecting the temperature limitations within the data centre. The economic and environmental benefits of this optimization are also explored. Overall, it is proven that ventilation conditions have an influence on the geothermal potential that can be extracted, and optimization of the complete system is possible when considering the effect of geothermal heat extraction in underground data centres while determining their ventilation requirements.

900-Days long term study of plant microbial fuel cells and complete application for powering wireless sensors

Plant microbial fuel cells (PMFCs) are electrochemical systems capable of producing electrical energy from plant growth. Despite their limited power density, PMFCs hold pomise as power source for wireless sensor, without using embedded battery, especially in isolated locations. In this study, a complete wireless system was presented, with Cyperus papyrus-based microbial fuel cell. The Cyperus papyrus system was studied over 900 days. Although there was a slight decrease in power output attributed to anodic decreasing performance, the reduction at the cathode remained stable. This stability is likely due to biocatalyst activity, supported by the oxygen transport from the plant to the roots. Although performance of Cyperus papyrus microbial fuel cell were lower than those found in literature, these plants were stacked to power a microcontroller equipped with a temperature/humidity sensor. This microcontroller transmitted measurements wirelessly to a web server every 2 h. The web server, accessible via a web interface, provided real-time data to users on the local network. Finally, the intervals between measurements could serve as indicators of environmental stress, such as variations in soil moisture content.

A "Colour Revolution" in Iran? Attack it with a Social Stability Model based on TOPSIS!

A "color revolution" achieves regime change by attacking the weakest link in society, but once the ratio of each link in society is out of balance, it will cause social deformation and thus affect social stability. To study the factors affecting social stability and avoid "color revolutions", it is necessary to establish an effective social stability index system, and on this basis, to build a social stability coefficient model. To establish a complete social stability index system, this paper selects population, defense science and technology, environment, education, economy, and agriculture after dimensionality reduction. The six indicators were then downscaled to obtain population, national defense, science and technology, environment, education, economy, and agriculture, and the social stability coefficient was classified into five levels from 0 to 1 using the TOPSIS evaluation algorithm, with the higher the level the worse the social stability. Using Spearman and Akaike Causality to test the indicator system, it was found that there was a significant correlation and causality between the stability coefficient and each indicator, and the indicator system was well established. For regions that failed to launch "color revolutions", this paper takes Iran as an example, and after bringing its 44 indicators into the social stability coefficient model in 2018, it comes out that the social stability coefficient of Iran is 0.637, and the social stability level is in the second level of stability to the third level of stability, which is a more stable state at this time. There may be some precursors of social unrest. At the same time, Iran's population development and education level are at a high level, and the general education and knowledge of the Iranian people are high, so the number of people who participate in internal conflicts and revolutions is reduced, which leads to the failure of color revolutions.

Solar-Driven Continuous CO2 Reduction to CO and CH4 using Heterogeneous Photothermal Catalysts: Recent Progress and Remaining Challenges.

The urgent need to reduce the carbon dioxide level in the atmosphere and keep the effects of climate change manageable has brought the concept of carbon capture and utilization to the forefront of scientific research. Amongst the promising pathways for this conversion, sunlight-powered photothermal processes, synergistically using both thermal and non-thermal effects of light, have gained significant attention. Research in this field focuses both on the development of catalysts and continuous-flow photoreactors, which offer significant advantages over batch reactors, particularly for scale-up. Here, we focus on sunlight-driven photothermal conversion of CO2 to chemical feedstock CO and CH4 as synthetic fuel. This review provides an overview of the recent progress in the development of photothermal catalysts and continuous-flow photoreactors and outlines the remaining challenges in these areas. Furthermore, it provides insight in additional components required to complete photothermal reaction systems for continuous production (e. g., solar concentrators, sensors and artificial light sources). In addition, our review emphasizes the necessity of integrated collaboration between different research areas, like chemistry, material science, chemical engineering, and optics, to establish optimized systems and reach the full potential of this technology.

Contemporary Management of Cardiac Implantable Electronic Device Infection: The American College of Cardiology COGNITO Survey

BackgroundCardiac implantable electronic devices (CIEDs) infection remains a serious complication, causing increased morbidity and mortality. Early recognition and escalation to definitive therapy including extraction of the infected device often pose challenges. ObjectivesThe purpose of this study was to assess U.S.-based physicians current practices in diagnosing and managing CIED infections and explore potential extraction barriers. MethodsAn observational survey was performed by the American College of Cardiology including U.S. physicians managing CIEDs from February to March 2022. Sampling techniques and screener questions determined eligibility. The survey featured questions on knowledge and experience with CIED infection patients and case scenarios. ResultsOf 387 physicians completing the survey (20% response rate), 49% indicated familiarity with current guidelines regarding CIED infection. Electrophysiologists (EPs) (91%) were more familiar with these guidelines, compared to non-EP cardiologists (29%) and primary care physicians (23%). Only 30% of physicians specified that their institution had guideline-based protocols in place for managing patients with CIED infection. When presented with pocket infection cases, approximately 89% of EPs and 50% of non-EP cardiologists would follow guideline recommendation to do complete CIED system removal, while 70% of primary care physicians did not recommend guideline-directed treatment. ConclusionsThere are gaps in familiarity of guidelines as well as the knowledge in practical management of CIED infection with non-extracting physicians. Most institutions lack a definite pathway. Addressing discrepancies, including guideline education and streamlining care or referral pathways, will be a key factor to bridging the gap and improving CIED infection patient outcomes.

BIST (Built-In Self Test) Memory by Using VERILOG

Built-In Self-Test (BIST) is a technique that allows a set up to check itself for any error on its own. BIST is a screening mechanism that places the testing functions physically with the circuit applications where system reliability is predominant, and “failure is not an option.” The decision to execute a critical mission must be made only if the complete system is running without any error. BIST structures generate pseudo random combinations and output results for an exclusive circuit under test are compared. BIST can be implemented on entire designs, design blocks or structures within design blocks. Memory is a complex architecture (fabrication wise) and used in a large number of applications. BIST is basically used to help in the testing of memory with the help of a few extra pins. In fact, while testing a memory using BIST, applying a simple clock signal along with a few pins helps test the entire memory IC. The proposed BIST enabled RAM is designed using Verilog

Feasibility of a Health Coach Intervention to Reduce Sitting Time and Improve Physical Functioning Among Breast Cancer Survivors: Pilot Intervention Study.

Sedentary behavior among breast cancer survivors is associated with increased risk of poor physical function and worse quality of life. While moderate to vigorous physical activity can improve outcomes for cancer survivors, many are unable to engage in that intensity of physical activity. Decreasing sitting time may be a more feasible behavioral target to potentially mitigate the impact of cancer and its treatments. The purpose of this study was to investigate the feasibility and preliminary impact of an intervention to reduce sitting time on changes to physical function and quality of life in breast cancer survivors, from baseline to a 3-month follow-up. Female breast cancer survivors with self-reported difficulties with physical function received one-on-one, in-person personalized health coaching sessions aimed at reducing sitting time. At baseline and follow-up, participants wore the activPAL (thigh-worn accelerometer; PAL Technologies) for 3 months and completed physical function tests (4-Meter Walk Test, Timed Up and Go, and 30-Second Chair Stand) and Patient-Reported Outcomes Measurement Information System (PROMIS) self-reported outcomes. Changes in physical function and sedentary behavior outcomes were assessed by linear mixed models. On average, participants (n=20) were aged 64.5 (SD 9.4) years; had a BMI of 30.4 (SD 4.5) kg/m2; and identified as Black or African American (n=3, 15%), Hispanic or Latina (n=4, 20%), and non-Hispanic White (n=14, 55%). Average time since diagnosis was 5.8 (SD 2.2) years with participants receiving chemotherapy (n=8, 40%), radiotherapy (n=18, 90%), or endocrine therapy (n=17, 85%). The intervention led to significant reductions in sitting time: activPAL average daily sitting time decreased from 645.7 (SD 72.4) to 532.7 (SD 142.1; β=-112.9; P=.001) minutes and average daily long sitting bouts (bout length ≥20 min) decreased from 468.3 (SD 94.9) to 366.9 (SD 150.4; β=-101.4; P=.002) minutes. All physical function tests had significant improvements: on average, 4-Meter Walk Test performance decreased from 4.23 (SD 0.95) to 3.61 (SD 2.53; β=-.63; P=.002) seconds, Timed Up and Go performance decreased from 10.30 (SD 3.32) to 8.84 (SD 1.58; β=-1.46; P=.003) seconds, and 30-Second Chair Stand performance increased from 9.75 (SD 2.81) to 13.20 completions (SD 2.53; β=3.45; P<.001). PROMIS self-reported physical function score improved from 44.59 (SD 4.40) to 47.12 (SD 5.68; β=2.53; P=.05) and average fatigue decreased from 52.51 (SD 10.38) to 47.73 (SD 8.43; β=-4.78; P=.02). This 3-month pilot study suggests that decreasing time spent sitting may be helpful for breast cancer survivors experiencing difficulties with physical function and fatigue. Reducing sitting time is a novel and potentially more feasible approach to improving health and quality of life in cancer survivors.

PEDAGOGICAL CONDITIONS FOR PRIMARY SCHOOL CHILDREN’S SOCIAL COMPETENCE FORMATION

The article defines the essence of the category “social competence”, and characterizes its structural components. Thus, the structure of social competence includes motivational, cognitive, activity, and reflective components. Various approaches to defining the social competence of children of primary school age are represented. The peculiarities of primary school children’s social competence formation are analyzed, and its place in the system of key competencies of a modern personality is determined. Primary school children’s social competence formation is considered in the context not only of social education but also of socialization itself, as its final result.&#x0D; It has been proven that the primary school age is a sensitive period for social competence formation and active development, in particular through the implementation of socially significant activities. The role of primary school children’s socially significant activities in the development of their social competence is revealed, in particular, it is confirmed that joint collective activity and interpersonal relationships in the team significantly affect the level of social competence formation of the personality of the primary school children; therefore it is important to form a positive experience of cooperation.&#x0D; Pedagogical conditions for primary school children’s social competence formation in the conditions of the new Ukrainian school are outlined. Thus, one of the key conditions for primary school children’s social competence formation is the clear structuring of the teacher’s activities content, which will make it possible to develop a complete system of pedagogical actions and influences to increase the effectiveness of all components of social competence formation. A significant condition is also an open, integral, emotionally comfortable, subject-oriented, and ergonomic educational space. An equally important role in this process is played by the involvement of primary school children in public life and joint project activities.&#x0D; Based on the results of the research, a characteristic of a primary school child with a high level of social competence development, which is ensured by alternating different types of social activities, has been developed. The future direction of further research is defined in the implementation of the ideas of partner pedagogy during primary school children’s social competence formation.

Hierarchical Hybrid Coatings with Drug-Eluting Capacity for Mg Alloy Biomaterials.

A hierarchical hybrid coating (HHC) comprising a ceramic oxide layer and two biodegradable polymeric (polycaprolactone, PCL) layers has been developed on Mg3Zn0.4Ca cast alloy in order to provide a controlled degradation rate and functionality by creating a favorable porous surface topography for cell adhesion. The inner, ceramic layer formed by plasma electrolytic oxidation (PEO) has been enriched in bioactive elements (Ca, P, Si). The intermediate PCL layer sealed the defect in the PEO layer and the outer microporous PCL layer loaded with the appropriate active molecule, thus providing drug-eluting capacity. Morphological, chemical, and biological characterizations of the manufactured coatings loaded with ciprofloxacin (CIP) and paracetamol (PAR) have been carried out. In vitro assays with cell lines relevant for cardiovascular implants and bone prosthesis (endothelial cells and premyoblasts) showed that the drug-loaded coating allows for cell proliferation and viability. The study of CIP and PAR cytotoxicity and release rate indicated that the porous PCL layer does not release concentrations detrimental to the cells. However, complete system assays revealed that corrosion behavior and increase of the pH negatively affects cell viability. H2 evolution during corrosion of Mg alloy substrate generates blisters in PCL layer that accelerate the corrosion locally in crevice microenvironment. A detailed mechanism of the system degradation is disclosed. The accelerated degradation of the developed system may present interest for its further adaptation to new cancer therapy strategies.

Current situation analysis of Chinese variable housing research based on CiteSpace analysis

ABSTRACT Variable housing is to solve the problems existing in industrialized large-scale housing construction appeared, with open, sustainable and other characteristics, for the sustainable development of housing has greater significance. Using CiteSpace software for visualization and analysis, this paper examines 268 pieces of literature from the last 30 years, reviewing the research status and development lineage. The results show that (1) China’s scholars research on variable housing focuses on the transformative learning of foreign theories and practices and local practices. The evolution of the research ontology follows the development line from theory to technology to practice, and policy also plays a guiding role in it. (2) The types of research on variable housing are gradually diversified, and a more complete system of “design, parts and construction” has been formed. (3) Currently, the popularization rate of variable housing is low due to the problems of crowd awareness and economy. Therefore, the focus of future research should be on strengthening the policy promotion of variable housing and integrating the research and development of component technology. This study provides a systematic review and discussion of variable housing research, aiming to propose possible future research priorities and application directions.