Components Of Instrument Research Articles

Pathway-Based Mendelian Randomization for Pre-Infection IL-6 Levels Highlights Its Role in Coronavirus Disease.

Interleukin 6 (IL-6) levels at hospital admission have been suggested for disease prognosis, and IL-6 antagonists have been suggested for the treatment of patients with severe COVID-19. However, less is known about the relationship between pre-COVID-19 IL-6 levels and the risk of severe COVID-19. To fill in this gap, here we extensively investigated the association of genetically instrumented IL-6 pathway components with the risk of severe COVID-19. We used a two-sample Mendelian randomization study design and retrieved genetic instruments for blood biomarkers of IL-6 activation, including IL-6, soluble IL-6 receptor, IL-6 signal transducer, and CRP, from respective large available GWASs. To establish associations of these instruments with COVID-19 outcomes, we used data from the Host Genetics Initiative and GenOMICC studies. Our analyses revealed inverse associations of genetically instrumented levels of IL-6 and its soluble receptor with the risk of developing severe disease (OR = 0.60 and 0.94, respectively). They also demonstrated a positive association of severe disease with the soluble signal transducer level (OR = 1.13). Only IL-6 associations with severe COVID-19 outcomes reached the significance threshold corrected for multiple testing (p < 0.003; with COVID-19 hospitalization and critical illness). These potential causal relationships for pre-COVID-19 IL-6 levels with the risk of developing severe symptoms provide opportunities for further evaluation of these factors as prognostic/preventive markers of severe COVID-19. Further studies will need to clarify whether the higher risk for a severe disease course with lower baseline IL-6 levels may also extend to other infectious diseases.

A qualitative examination of the experiences and perspectives of interprofessional primary health care teams in the distribution of the COVID-19 vaccination in Ontario, Canada.

Primary health care (PHC) teams contributed to all phases of the COVID-19 vaccination distribution. However, there has been criticism for not fully utilizing the expertise and infrastructure of PHC teams for vaccination distribution. Our study sought to understand the role PHC teams had in the distribution of the COVID-19 vaccine in Ontario, Canada. The key objective informing this study was to explore the experiences and perspectives of interprofessional PHC teams in the distribution of COVID-19 vaccination across Ontario. A qualitative approach was used for this study, which involved 39 participants from the six health regions of the province. Eight focus groups were conducted with a range of interprofessional healthcare providers, administrators, and staff working in PHC teams across Ontario. The sample reflected a diverse range of clinical, administrative, and leadership roles in PHC. Focus groups were audio-recorded and transcribed, while transcriptions were then analyzed using thematic analysis. We identified the following four themes in the data: i) PHC teams know their patients; ii) mobilizing team capacity for vaccination, iii) intersectoral collaborations, and iv) operational challenges. PHC teams were an instrumental component in supporting COVID-19 vaccinations in Ontario. The involvement of PHC in future vaccination efforts is key but requires additional resourcing and inclusion of PHC in decision-making. This will ensure provider well-being and maintain collaborations established during COVID-19 vaccination.

Cluster approach to identifying the 5-year prognosis of patients with chronic heart failure of ischemic etiology

BACKGROUND: The phenotypic and pathophysiological heterogeneity of patients with chronic heart failure increases the interest of researchers in grouping according to similar clinical and genetic characteristics based on cluster analysis. AIM: To identify phenotypic subgroups in a multivariate cohort of patients with chronic heart failure secondary to coronary artery disease using uncontrolled cluster analysis of clinical, instrumental and genetic components. MATERIAL AND METHODS: 470 patients with chronic heart failure of functional class I–IV, stable course, ischemic etiology of both sexes at the age of 66.4±10.4 years were examined. A clinical study was conducted, genotyping single nucleotide polymorphisms rs10927875 of the ZBTB17 gene, rs247616 of the CETP gene, rs1143634 of the IL-1β gene, rs1800629 of the TNF gene, rs1800795 of the IL-6 gene was carried out, and patient outcomes were assessed for 5 years. Quantitative data were presented as mean and standard deviation or median and interquartile range; categorical — as frequencies and percentages. Categorical intergroup differences were tested using the χ2 test, and quantitative differences were tested using the Student/Mann–Whitney test. Hierarchical clustering was carried out according to 44 demographic, clinical, genetic variables, time to event was analyzed by the Kaplan–Meier method, risk ratio — by Cox regression. Statistical processing was carried out in the R4.3.1 program. RESULTS: Two clusters of patients with heart failure were identified. Cluster 1 (66%) included older patients of both sexes, predominantly functional class III–IV chronic heart failure, with enlarged heart chambers, reduced left ventricular ejection fraction, higher heart rate, atrial fibrillation and left ventricular hypertrophy. In this cluster, more carriers of the GG genotype of the rs1800795 polymorphism of the IL-6 gene (p 0.001) and the CT genotype of the rs247616 polymorphism of the CETP gene (p=0.014) were identified. Cluster 2 (34%) was represented predominantly by younger women, with a higher metabolic index, a history of myocardial infarction and coronary intervention, smokers, and a larger proportion of the TT genotype of the rs247616 polymorphism of the CETP gene (p=0.029). CONCLUSION: 2 clusters of patients with chronic heart failure, characterized by a different set of 44 variables that determine the risk of death from all causes, were identified.

A Novel Proposal of an Electro-Optical Sensor to Measure Various Levels of an Electric Field Using Pockels Effect Photonic Crystals

Electro-optic sensors based on the Pockels effect are key components for optical instrumentation due to their speed and accuracy. In this work, we propose a new electro-optic platform using two-dimensional photonic crystals of gallium arsenide and barium titanate (GaAs-BTO). This structure allows for the measurement of various electric field levels, from 0 kV/mm to 50 kV/mm, with a very high sensitivity and a compact size. The opto-geometric parameters of this sensor were chosen, optimized, and analyzed numerically using the Plane Wave Expansion (PWE) and Finite-Difference Time-Domain (FDTD) methods.

User Experience (UX) with Mobile Devices: A Comprehensive Model to Demonstrate the Relative Importance of Instrumental, Non-Instrumental, and Emotional Components on User Satisfaction

Despite growing interest in User Experience (UX), the empirical testing of UX models, particularly the interdependence of UX dimensions and their impact on user satisfaction, remains limited. This study fills this gap by examining a UX model for smartwatch and smartphone users through an online survey and partial least squares (PLS) regression analysis. Our findings reveal that both instrumental and non-instrumental qualities, alongside the emotions elicited by mobile devices, are interconnected and crucial to users. Notably, instrumental qualities tend to elicit negative emotions, whereas non-instrumental qualities elicit predominantly positive emotions. The observed relationships among various UX factors and user satisfaction underscore the significance of the proposed UX model and, more broadly, highlight the importance of UX research in deciphering the psychological processes encountered when individuals interact with technology.

VERBAL REPRESENTATIONS OF WEAPONS: A UNIVERSALIA-ORIENTED ANALYSIS

This paper explores the verbal representations of the WEAPON concept in Old English and Old Icelandic texts, examining how irrational knowledge structures, or "nano-myths," are embedded within the inner form of the concept's names through etymological analysis and interdisciplinary comparisons. These "nano-myths" serve as interpretational and categorizational filters, providing insight into the conceptual underpinnings of these language units. The study emphasizes the role of cognitive models as the basis for these conceptual verbalizations. The analytical approach used in this research is rooted in the theory of myth-oriented semiosis, which forms a key component of the interdisciplinary methodology known as "M-logic." This approach involves reconstructing the cognitive premises underlying these language units and mapping them against a universal model of an open system to identify patterns and variations. The identified models are then compared to ascertain the differences and similarities in conceptual representation between Old English and Old Icelandic. The paper's synthetic interpretations suggest that the set of conceptualized semantic features, organized within the hierarchical plane of the universal model, helps define the allomorphic contours of the respective semantic spaces in the two worldviews. The instrumental component of the isomorphic frame-type structure, which reflects the synergetic dynamics of these semantic spaces, is extended in distinct ways in the Old English and Old Icelandic contexts. This differentiation contributes to the allomorphic structure observed in these worldviews, indicating a unique approach to the concept of weapons in each linguistic tradition.

PROMPT: A Fast and Extensible Memory Profiling Framework

Memory profiling captures programs’ dynamic memory behavior, assisting programmers in debugging, tuning, and enabling advanced compiler optimizations like speculation-based automatic parallelization. As each use case demands its unique program trace summary, various memory profiler types have been developed. Yet, designing practical memory profilers often requires extensive compiler expertise, adeptness in program optimization, and significant implementation effort. This often results in a void where aspirations for fast and robust profilers remain unfulfilled. To bridge this gap, this paper presents PROMPT, a framework for streamlined development of fast memory profilers. With PROMPT, developers need only specify profiling events and define the core profiling logic, bypassing the complexities of custom instrumentation and intricate memory profiling components and optimizations. Two state-of-the-art memory profilers were ported with PROMPT where all features preserved. By focusing on the core profiling logic, the code was reduced by more than 65% and the profiling overhead was improved by 5.3× and 7.1× respectively. To further underscore PROMPT’s impact, a tailored memory profiling workflow was constructed for a sophisticated compiler optimization client. In 570 lines of code, this redesigned workflow satisfies the client’s memory profiling needs while achieving more than 90% reduction in profiling overhead and improved robustness compared to the original profilers.

SEMANTIC CONTENT OF CONCEPT HELP CATEGORIZED AS PROPERTY IN CONTEMPORARY ENGLISH

The article raises the issue of conceptual-semantic analysis of units of different lexical-grammatical classes to indicate rivalry. The referent of objective reality represented by the RIVALRY concept is a certain situation as a set of its interdependent elements. The analysis of the semantic structure of nominative units contributes to the establishment of deep patterns of interaction between the structures of human consciousness and linguistic forms. Nominative possibilities of the linguistic picture of the world are implemented by lexical units that are subject to conceptual analysis to achieve the goal of linguistic-cognitive research - reconstruction of the content of the concept. Dictionary definitions of words of different lexical-grammatical classes to indicate rivalry contain generic and specific semes as lexical units that implement the corresponding cognitive characteristics and are called slot terminals. The frame acts as a classifier of lexical units in which the components of the reference situation of rivalry are actualized. The semantic-cognitive analysis of lexemes that form the primary and secondary synonymous series and most adequately reflect the studied conceptual category precedes the modeling of the prototypical informative structure of the concept of rivalry in terms of frame semantics. Slot ACTION, which captures information about the actions of direct participants, is represented by units of the lexical-grammatical category to indicate the rivalry process. The studied slots reflect knowledge about the causal, instrumental, location and time components of the frame model. The studied slots are correlated with a group of cognitive features that represent knowledge about the characteristics of actions.Thus, the causal set activates data on the reasons for entering into a rival interaction, options for ending it. The instrumental set accumulates information about the nature of the action, tactics, strategic goal; the quantity and quality of the means of action, about the quantitative and qualitative aspects of the goal, its varieties. The location and time of the frame captures knowledge about the type of the place and spheres of action, the duration of the rivalry and the time of its implementation.

Design of Instrumentation and Control Components of Power Distribution Systems

Introduction. In recent years, the development of high-voltage power systems has received a boost due to the need for infrastructural support for priority development areas. Universal models and algorithms are required to implement processes in power components and identify their optimal parameters. However, there are no such solutions. Accordingly, there are no ready-made subsystems with control and optimization algorithms adequate to the tasks under consideration. The objective of the presented research is to develop an optimization subsystem for the design of control and measurement components of power distribution systems.Materials and Methods. Methods for constructing automated design systems, optimization, system analysis, mathematical modeling, and adaptive control were used. When selecting methods, we proceeded from the fact that the components of power distribution systems consisted of a finite number of elements. The synthesis of a power system includes tens or hundreds of sequential operations. This was taken into account in the developed models and algorithms.Results. The possibilities of managing and monitoring manufacturing processes (MP) for the production of components of low-voltage power distribution systems were shown in terms of checking the operability and correct functioning of processing equipment. A modular structure was created to allow the integration of CAD output files into the manufacturing processes of energy distribution system components. A functional diagram of a subsystem for control and monitoring of the manufacturing processes of the production of components of power distribution systems was developed. The proposed schematic diagram of production control showed how the data collection subsystem, management system, and operating mechanisms were involved in the control of operations. The multi-level optimization module model created within the framework of this research sequentially optimized the service intensity of the i-th block, the input flow separation coefficients, and the priorities of the original data flows that form the input flow of the i-th block.Discussion and Conclusion. The combined application of modeling, system analysis, and optimization methods maintains control of the accuracy of the generated power components. The algorithm for controlling electrical loads opens up opportunities for creating a mathematical model of a power supply system that combines management, control, and monitoring, which ultimately leads to an improvement in the quality of electric power. The solution can be in demand in the development of power systems of priority development areas.

Design of ultra-efficient and automatically temperature-variable cycle (TVC) Sieverts apparatus for testing sorption properties of hydrogen storage materials

The evaluation of hydrogen sorption properties in materials is crucial for their widespread applications. However, existing volumetric apparatuses often suffer from low accuracy and efficiency due to inadequate calibration techniques, temperature gradients, and limited automation. To address these limitations, a Temperature-Variable Cycle (TVC) Sieverts apparatus has been developed. Besides conventional tests, the device is capable of efficiently performing TVC tests, such as TVC Pressure-Composition-Temperature (PCT) isotherm and kinetics, through the integration of RS485 serial communication and automatic dosing techniques. The instrument's component selection and configuration were described in detail. Furthermore, novel methods for volume calibration and anti-thermal gradient were presented, where a continuous function was proposed to overcome temperature gradients across the entire range of test temperatures. Finally, a series of tests were conducted using La0.5Ce0.5Ni4Co alloy and Mg material as benchmark materials to validate the setup and methods. The accuracy of volumes and the feasibility of the methods were confirmed through null PCT tests and data comparisons of PCT with kinetic of La0.5Ce0.5Ni4Co alloy, respectively. By employing these methods, the accuracy of null tests is improved by nearly tenfold. The efficiency and robustness of the unit were demonstrated through Temperature-Programmed Desorption/Absorption (TPD/TPA), TVC PCT, and TVC kinetics tests on MgH2 powder. The results produced by the TVC system align well with the reliable data in literature.

The Anatomy of Galileo’s Anagram

Abstract This essay offers a new reading of Galileo’s most celebrated anagram, incorporating both the prehistory of his late-1610 disclosure concerning the moon-like phases of Venus, and the awkward “leftover letters,” o and y, of the eventual cypher. It argues for a sustained analogy between components of the optical instrument, musical instruments, and particular anatomical structures described by Galen and elaborated by early modern anatomists in Padua. It proposes, finally, the cypher as a calculated response to the Neapolitan magus and playwright Giambattista della Porta’s challenge to Galileo’s claims about the telescope itself.

Exploring Organology and Learning Techniques of Dongxiao Chinese Folk Musical Instruments in Shandong Province

Back ground and Aims: This study explores the organology and learning skills of Dongxiao Chinese folk musical instruments in Shandong Province, a traditional Chinese folk musical instrument with deep historical and cultural significance, particularly in Shandong Province. The aim is to provide a comprehensive understanding of Dongxiao music culture, ensuring its preservation and development alongside contemporary music cultures in Asia. Materials and Methods: The study is conducted through fieldwork in Heze, Shandong, China, involving data collection, identification of key informants, and systematic data collation. Observations and interviews are used as research tools to gain insights into Dongxiao materials, organology, and playing techniques. Data analysis includes quantitative and qualitative methods to identify patterns and themes related to Dongxiao. Results: The study reveals the organology of Dongxiao, highlighting materials such as bamboo, hardwood, jade, metal, and PVC, along with their advantages and disadvantages. It categorizes the instrument's components, including the mouthpiece, body, finger holes, and barrel holes, elucidating their roles in sound production. Additionally, the study explores the learning techniques for Dongxiao, emphasizing playing postures, finger hole techniques, and lip positioning. Conclusion: Dongxiao, with its rich history and cultural significance, plays a vital role in traditional Chinese music. Understanding its organology and learning techniques is essential for its preservation and promotion. Recommendations include the establishment of music education centers, digital learning platforms, collaborative performances, music festivals, and documentation efforts. Further study avenues include acoustical analysis, pedagogical approaches, regional variations, cross-cultural studies, contemporary compositions, and exploring the psychological and health benefits of Dongxiao.

Professional readiness of pedagogical university students for psychological and pedagogical support of young children with disabilities

Introduction. Currently, issues of early assistance to children with disabilities are widely discussed as an important condition for their socialization and integration into the educational and social space. The education system needs qualified specialists to ensure the effectiveness of psychological and pedagogical support for children with disabilities at an early age. A pedagogical university has great potential in the field of training such specialists. However, at the moment there is a certain imbalance between the requirements of practice for solving various complex professional problems that arise in such support and the insufficient readiness of students of a pedagogical university to implement it. The study aims to experimentally analyze the state of professional readiness of bachelor students for psychological and pedagogical support of young children with disabilities and to identify the main ways of optimizing their preparation for implementing such activity. Materials and methods of research. 135 senior students of South Ural State Humanitarian Pedagogical University (Chelyabinsk) took part in the study: 75 students of Special (defectological) education with focus on Preschool defectology (EG 1) and 60 students of Pedagogical Education with focus on Preschool education (EG 2). The author's questionnaire included 9 blocks with questions determined in accordance with the tasks of professional activity and aimed to study the level of motivational and activity readiness of respondents to work with young children with disabilities. PRI is Index of professional readiness for the implementation of psychological and pedagogical support for young children with disabilities. Results. As a result of the empirical study, the motivational readiness to implement psychological and pedagogical support for young children with disabilities among EG 1 is above average (PRIm = 89.1%), and among EG 2 it is average (PRIm = 89.1%). Activity readiness (average in knowledge and instrumental components) among both groups is lower: EG 1 average (PRIS = 68.0%), EG 2 below average (PRIS = 54.7). Conclusion. The results prove the need to optimize the content, to search for effective means of preparing pedagogical university students for psychological and pedagogical support of young children with disabilities and for solving non-standard problems of professional activity, based on the variety of typological manifestations of children’s development and their educational needs.

Innovative Healthcare Models for Nursing Excellence and Patient Safety

This article delves into the exploration of innovative healthcare management models designed to cultivate nursing excellence and elevate patient safety within healthcare settings. Employing a mixed-methods approach, the study systematically assesses the effectiveness of these models through comprehensive research endeavors. The findings uncovered through this research shed light on the tangible impact of innovative management strategies on both nursing practices and patient outcomes. The study, rooted in a commitment to evidence-based inquiry, navigates the complex intersection of healthcare management and frontline care delivery. By adopting a mixed-methods approach, it incorporates quantitative and qualitative analyses, offering a nuanced understanding of the multifaceted dynamics at play within these innovative models. The revealed insights serve as a beacon for healthcare administrators and policymakers, providing them with valuable considerations as they strive for excellence in care delivery. The implications extend beyond theoretical observations, offering practical guidance for the implementation and refinement of healthcare management strategies. The study's outcomes contribute to the ongoing discourse surrounding the continuous improvement of patient care, positioning innovative management models as instrumental components in shaping the landscape of modern healthcare.

Research Experiences via Integrating Simulations and Experiments (REVISE): A Model Collaborative Research Project for Undergraduate Students in CO2 Sorbent Design.

Undergraduate research experiences are an instrumental component of student development, increasing conceptual understanding, promoting inquiry-based learning, and guiding potential career aspirations. Moving one step further, as research continues to become more interdisciplinary, there exists potential to accelerate student growth by granting additional perspectives through collaborative research. This study demonstrates the utilization of a model collaborative research project, specifically investigating the development of sorbent technologies for efficient CO2 capture, which is an important research area for improving environmental sustainability. A model CO2 sorbent system of heteroatom-doped porous carbon is utilized to enable students to gain knowledge of adsorption processes, through combined experimental and computational investigations and learnings. A particular emphasis is placed on creating interdisciplinary learning experiences, exemplified by using density functional theory (DFT) to understand molecular interactions between doped carbon surfaces and CO2 molecules as well as explain underlying physical mechanisms that govern experimental results. The experimental observations about CO2 sorption performance of doped ordered mesoporous carbons (OMCs) can be correlated with simulation results, which can explain how the presence of heteroatom functional groups impact the ability of porous carbon to selectively adsorb CO2 molecules. Through an inquiry-focused approach, students were observed to couple interdisciplinary results to construct holistic explanations, while developing skills in independent research and scientific communications. This collaborative research project allows students to obtain a deeper understanding of sustainability challenges, cultivate confidence in independent research, prepare for future career paths, and most importantly, be exposed to strategies employing interdisciplinary research approaches to address scientific challenges.

Ethical principles and scientific advancements: In vitro, in silico, and non-vertebrate animal approaches for a green ecotoxicology

The ethical considerations inherent in the use of living organisms in research, particularly in the field of ecotoxicology, have prompted a paradigm shift towards more sustainable methodologies. This perspective explores the intersection of ethical principles and scientific advancements in ecotoxicological research, emphasizing the advocacy for non-vertebrate animals, in vitro and in silico alternatives. In vitro methods, which utilize isolated cells, tissues, or organs, and in silico approaches, involving computational simulations, present viable alternatives that align with the principles of Replacement, Reduction, and Refinement (3Rs). Additionally, the inclusion of non-vertebrate animals in ecotoxicological studies further expands the scope of ethical considerations. This advocacy reflects a commitment to minimizing the environmental impact of ecotoxicological studies while advancing scientific understanding. The integration of these alternative methods not only addresses ethical concerns but also contributes to the reduction of animal testing, allowing for more precise control over experimental conditions. As technological capabilities and validation efforts progress, the combined ethical and scientific advantages of in vitro, in silico, and non-vertebrate animal approaches stand as instrumental components in the evolution of ecotoxicological research methodologies.

Bonding states of gold/silver plasmonic nanostructures and sulfur-containing active biological ingredients in biomedical applications: a review.

As one of the most instrumental components in the architecture of advanced nanomedicines, plasmonic nanostructures (mainly gold and silver nanomaterials) have been paid a lot of attention. This type of nanomaterial can absorb light photons with a specific wavelength and generate heat or excited electrons through surface resonance, which is a unique physical property. In innovative biomaterials, a significant number of theranostic (therapeutic and diagnostic) materials are produced through the conjugation of thiol-containing ingredients with gold and silver nanoparticles (Au and Ag NPs). Hence, it is essential to investigate Au/Ag-S interfaces precisely and determine the exact bonding states in the active nanobiomaterials. This study intends to provide useful insights into the interactions between Au/Ag NPs and thiol groups that exist in the structure of biomaterials. In this regard, the modeling of Au/Ag-S bonding in active biological ingredients is precisely reviewed. Then, the physiological stability of Au/Ag-based plasmonic nanobioconjugates in real physiological environments (pharmacokinetics) is discussed. Recent experimental validation and achievements of plasmonic theranostics and radiolabelled nanomaterials based on Au/Ag-S conjugation are also profoundly reviewed. This study will also help researchers working on biosensors in which plasmonic devices deal with the thiol-containing biomaterials (e.g., antibodies) inside blood serum and living cells.

Assessment and development of physical education teachers' physical literacy: A systematic review.

In recent years, physical literacy (PL) has gained a great deal of attention in global academia. Children's physical activity (PA) participation is severely underrepresented today, and students' participation in PA and PL level development is strongly dependent on the PL levels of PE teachers. This study aims to offer information for PE teachers to improve their PL levels and for the future development of tools to assess the PL of PE teachers through a systematic review of studies assessing PL of PE teachers. The Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) was used to conduct a comprehensive and systematic search in six databases-Web of Science, Scopus, ScienceDirect, PubMed, ProQuest; and SportDiscus, and a total of 671 papers were retrieved, but after removing duplicates, article identification, and screening only eight papers met the inclusion criteria. This study's results indicate a paucity of research related to PL among PE teachers, focusing on children, students, older adults, and children with disabilities. PE teachers performed poorly in the physical competence domain and better in the cognitive and affective domains, with a moderate level of overall PL. Only one instrument is currently available to assess PE teachers' (perceived) PL, and other studies have used instrument components. Therefore, it was concluded that the current PE teachers' PL level is not high. Also, because the concept of PL among PE teachers has not been standardized, no tool has been developed to evaluate the PL of PE teachers comprehensively and systematically. The CPD (continuing professional development) is considered an effective means of enhancing PL among PE teachers, and research should prioritize the development of CPD programs and tools that are specifically tailored to assess PL among PE teachers in the future.

Innovative technologies combating with dust emission releasing into the atmosphere

An examination of various approaches, methods, and technologies recommended as optimal for safeguarding atmospheric air against dust pollution has led to the identification of the distinct advantages associated with vortex inertial dust collectors utilizing swirling currents. These collectors, referred to as Cyclone Separation Fans (CSF), have been determined to serve as primary and auxiliary equipment in dust removal systems within the production of building materials and other industries. Traditionally employed circuit designs for dust collection systems were also subject to analysis, revealing two prevalent types: open and partially closed air circulation systems. In the latter, a portion of the cleaned airflow is reintroduced into the system, representing a key feature of the design. This assessment underscores the significance of vortex inertial dust collectors, specifically CSFs, as instrumental components in dust removal systems across various industrial sectors. Their effectiveness in mitigating dust pollution, coupled with their versatility as both primary and supplementary equipment, positions them as recommended technologies for atmospheric air protection in the production of building materials and other related industries. The recognition of open and partially closed air circulation systems in traditional dust collection circuit designs further contributes to refining and optimizing dust removal processes for enhanced environmental protection.

Personal and social factors of stress perception by senior adolescent boys and girls

At present, due to the speed and intensity of modern life and the high stressfulness of events and situations, scientific interest in the study of stress and factors that allow to constructively overcome them has seriously increased. Purpose: to study the contribution of personal and social characteristics to the perception of stress in senior adolescence. Hypothesis: boys and girls manifest the parameters of stress perception differently: overstrain as an emotional component and hardiness to stress as an instrumental component. For girls, the perceived stress is more closely related to their personal characteristics, and for boys it’s associated with social ones. In general, in the period from 15 to 17 years, personal characteristics contribute more to the ability to reduce or increase intensity of stress, and social characteristics contribute to the activation of efforts to counteract stress. A sample of 90 senior adolescents aged 15–17 was divided into two groups: 45 boys and 45 girls. Methods: the scale of perceived stress (ShVS-10, adaptation by Ababkov et al.); the scale of personal anxiety A.M.Prikhozhan; S.Muddy’s hardiness questionnaire (Leont’ev, Rasskazova’s adaptation); K.Riff ’s psychological well-being scales (Troshikhina, adaptation by Zhukovskaya); G. Sommer and T.Fydrich’s perceived social support questionnaire (adaptation by Kholmogorova, Petrova). Correlation and regression analysis was carried out. The study showed gender characteristics and differences in the perception of stress, which are manifested in a subjectively more intense and active experience of stress by girls compared to their peers boys. Data have been obtained on the greater contribution of individual-personal characteristics to the perception of stress in general and to such a component as overstrain in particular. It is also shown that in counteracting stress, along with personal characteristics, the factor of social support also plays a significant role.