Analytical References Research Articles

Theory and analytical solutions to wellbore problems with hardening/softening Drucker-Prager models

Recognizing and quantifying the elasto-plastic nature of underground formations is critical for various subsurface operations such as drilling, stimulation, production, injection, and storage. In the case of geological CO2 storage, for instance, it is key to identify storage sites characteristics and pumping parameters that lead to safe and perennial CO2 trapping. In this work, we investigate different rock hardening/softening behaviors with the Drucker-Prager model: cohesion hardening/softening, friction hardening/softening, and their combination, jointed hardening/softening. Our focus is to solve the elasto-plastic deformation analytically in the vicinity of a wellbore. The three hardening/softening formulations predict different mechanical responses and stress-paths for solving the same wellbore problem with excavation. The analytical solutions for 2D axisymmetric problems with different hardening laws are provided in this study and verified with corresponding numerical results. This approach can be used to interpret field observations and calibrate experimental data with more comprehensive models. These new laws are implemented and benchmarked in GEOS, an open-source advanced numerical simulator of subsurface formations. This study enhances our understanding of subsurface rock's elasto-plastic behavior and offer analytical references for interpretating experimental measurements and developing numerical simulations for solving wellbore problems.

Dynamic response strength of integrated foundation for multiple wind turbines

The focus of this paper is on the conceptual design of offshore multi wind turbine integrated floating foundation (MWF) and the strength analysis method of floating structures considering motion response. Firstly, the maximum environmental load and ultimate motion attitude of MWF were used as boundary conditions to solve the problem of imprecise constraint loads in traditional analysis methods. Then, a stress solving equation based on motion state and inertia release was established to solve the equivalent accuracy problem of floating body motion state. Finally, through theoretical analysis, numerical simulation, and experimental testing, it was found that the stress solution method considered the motion state of the floating body in this paper to be more accurate and reliable, with an error of less than 10% compared to the stress results of experimental testing. Improved calculation accuracy by 30%. These studies provide more accurate analytical methods and theoretical references for predicting the strength of floating structures in actual oceans.

Analyzing Social Interaction in Organizations: A Roadmap for Reflexive Choice

This article proposes a framework for reflexive choice in qualitative research, centering on social interaction. Interaction, fundamental to social and organizational life, has been studied extensively. Yet, researchers can get lost in the plethora of methodological tools, hampering reflexive choice. Our proposed framework consists of four dimensions of interaction (content, communication patterns, emotions, and roles), intersecting with five levels of analysis (individual, dyadic, group, organizational, and sociocultural), as well as three overarching analytic principles (following the dynamic, consequential, and contextual nature of interaction). For each intersection between dimension and level, we specify analytical questions, empirical markers, and references to exemplary works. The framework functions both as a compass, indicating potential directions for research design and data collection methods, and as a roadmap, illuminating pathways at the analysis stage. Our contributions are twofold: First, our framework fleshes out the broad spectrum of available methods for analyzing interaction, providing pragmatic tools for the researcher to reflexively choose from. Second, we highlight the broader relevance of maps, such as our own, for enhancing reflexive methodological choices.

Six miniatures for violin and piano by A. Mulear: analytical references

Alexandr Mulear - one of the prominent and profoundly original personalities of the local music culture, has been prodigiously active over the years in the field of musical creation, leaving a portfolio that abounds in notable works, substantially contributing to the enrichment of the interpretive repertoire. The genres approached by the composer are diverse and extend over a vast compositional area. However, a major proportion of the highlighted works are instrumental works with cyclical forms. Six Miniatures for Violin and Piano is one of the works that marks the stage of the master’s interest in compositional experimentation. In this article, we propose some keys for decoding the form, language, compositional aspects, reception and valorization of A. Mulear’s music through the prism of the analyzed work.

Evaluating the effectiveness of models of incentive legal regimes of entrepreneurial activity in the sphere of digital innovations and technologies

Subject. The article explores the issues of assessing the effectiveness of models of incentive legal regimes of entrepreneurial activity in the sphere of digital innovations and technologies.Purpose. The purpose of the study was to develop approaches to determining the effectiveness of incentive legal regimes of entrepreneurial activity in the field of digital innovation and technology, as well as to develop criteria and methods for evaluating existing models of these legal regimes.Methodology. The methodological basis of this study are general scientific methods (analysis and synthesis, induction and deduction), private scientific methods (interpretation of legal acts), as well as content analysis, study of reports and analytical references of governmental organizations.Results. The general approaches to assessing the effectiveness of law and legislation existing both in Russia and abroad are analyzed. The author defines the types of effectiveness of incentive legal regimes of entrepreneurial activity in the sphere of digital innovations and technologies, as well as their criteria. The author's methodology for assessing the effectiveness of incentive legal regimes in the sphere of digital innovations and technologies is proposed.Conclusions. The methodology proposed in this study for assessing the effectiveness of such legal regimes can be used as part of the actual impact assessment, and the conclusions reached by the authors may form the basis for further future research on legal regimes for entrepreneurial activity.

지질고고학적 분석을 통해 본 신석기시대 주거지와 취락의 공간 이용상

Geoarchaeological investigation is useful for reconstructing domestic activities within an architectural structure based on analysis of physical and chemical components in the soil. Addressing research cases of the use of space in the Middle and Near East during the Neolithic times that successfully demonstrated the utility of geoarchaeological methodologies and introducing relevant and representative geoarchaeological works, this paper aims to provide the background research for promoting prospective studies on the use of space in Korean Neolithic culture. This paper summarizes the study cases following the categories of settlement morphology model (individual structures, intrasettlement and surrounding landscapes) along with the temporal changes of living floor construction. This article surveys previous studies on (i) functionally differentiated spaces (e.g., food processing and cooking, resting and sleeping, livestock rearing, ritual practices) within the living floors of structures, (ii) roads and middens that were spaces for various activities in the vicinity of settlements and (iii) landscapes around settlements in terms of agricultural and pastoral fields. Whereas these studies provide empirical evidence of habitation and use of space, they also extend to theoretical approaches that address how the materiality of a group's prehistoric culture has shaped its character. Reviewing previous studies in the Middle and Near Eastern regions, this paper intends to offer analytical frameworks and references to guide geoarchaeological research applications to the future Korean Neolithic studies primarily through presenting the two notable pilot studies from Gosanri and Hajungdong that have exhibited the methodological potentials.

A exploração do trabalho infantil no tráfico: percepções dos profissionais do Sistema de Garantia de Direitos da Criança e do Adolescente

Considering the narratives and perspectives ofadolescents undergoing an open environment socio-educational measure about their experiences in drug trafficking, the technical team that works with them created an educational program to prepare professionals from the Child and Adolescent Rights Guarantee System to recognize this phenomenon as exploitation of child labor. As part of a study aimed at analyzing and improving the method, the conceptions and perceptions of 44 professionals taking part in the program were surveyed using digital questionnaires applied at two different times: before and after taking part in the educational activities. Descriptive statistics and thematic analysis were used in the analysis, and changes between the two sets of content were highlighted. After the educative period, clearer and denser perceptions of the complexity of the phenomenon were observed, in convergence with references that show that there is an extensive process of exploitation of child labor and working conditions analogous to slavery, with immediate and prolonged consequences in the sphere of violation of rights. The changes in the professionals’ perceptions suggest that the program can help broaden the professionals’ analytical references, providing a basis for interventions that have a critical impact on the problem.

A exploração do trabalho infantil no tráfico: percepções dos profissionais do Sistema de Garantia de Direitos da Criança e do Adolescente

Considering the narratives and perspectives ofadolescents undergoing an open environment socio-educational measure about their experiences in drug trafficking, the technical team that works with them created an educational program to prepare professionals from the Child and Adolescent Rights Guarantee System to recognize this phenomenon as exploitation of child labor. As part of a study aimed at analyzing and improving the method, the conceptions and perceptions of 44 professionals taking part in the program were surveyed using digital questionnaires applied at two different times: before and after taking part in the educational activities. Descriptive statistics and thematic analysis were used in the analysis, and changes between the two sets of content were highlighted. After the educative period, clearer and denser perceptions of the complexity of the phenomenon were observed, in convergence with references that show that there is an extensive process of exploitation of child labor and working conditions analogous to slavery, with immediate and prolonged consequences in the sphere of violation of rights. The changes in the professionals’ perceptions suggest that the program can help broaden the professionals’ analytical references, providing a basis for interventions that have a critical impact on the problem.

Farianas, experiencias desde la insurgencia

This article aims to approach the experiences of women insurgents of the FARC-EP within the armed conflict context, before the signing of the Final Peace Agreement. The analytical references were presented from two perspectives: peace studies and feminism. The methodological approach is qualitative. Dialogical techniques were used with women who signed the peace agreement, and who are currently in the reincorporation process. The inquiry revolved around their role in the transformation of society, the construction of peace, and the guarantees of non-repetition of the different types of violence that took place during the armed conflict in Colombia. This work collects what these women expressed regarding equality, femininity, community life, maternity, and care, all mediated by the socio-historical context of the war in Colombia.

Аналіз результатів складання Єдиного державного кваліфікаційного іспиту КРОК 1 за спеціальністю «Педіатрія» як модернізація освітнього процесу вищої медичної освіти України

While implementing European integration processes in the educational space of Ukraine, medical higher education did not remain aloof. The main stage of quality control of higher medical education by means of information and communication technologies (ICT) was the reformatting of the license integrated exam Step 1 “General medical training”, which was taken by students of higher medical education in the specialties “Medicine”, “Medical psychology” and “Pediatrics” in Unified State Qualification Exam (USQE) STEP 1 (USQE STEP 1) separately for each specialty. Thus, unlike other European countries, since 2019, Ukraine has been training specialists in specialty “Pediatrics” at the stage of undergraduate training. Purpose - to conduct a comparative analysis of the results of the first stage of the USQE STEP 1 by applicants for higher medical education in the specialty 228 "Paediatrics" in Ukraine and the Bogomolets National Medical University. Materials and methods. Analytical references to the results of the first stage of the USQE Step 1, which are provided by the Testing Center at the Ministry of Health of Ukraine for the period from 2019 to 2021; the statistical significance of comparative indicators was proved using Fisher’s test, with a statistical error that corresponded to the specified value for ≤0.05. Results. During the period of remote and transitional forms of organization of the educational process in higher medical education (2019-2021), stabilization of education was achieved thanks to ICT tools: the overall success rate of applicants for specialty 228 “Pediatrics” in Ukraine increased by 3.0%. Effective adaptation measures have been taken to organize the educational process at Bogomolets National Medical University by means of ICT for applicants of specialty 228 “Pediatrics”: the overall success rate increased by 2.1% against the background of a 4% decrease in the national rate. Improvement of the methodological conditions of the organization of the educational process of training applicants of higher medical education in specialty 228 “Pediatrics” was proven by the methods of mathematical statistics. Conclusions. The obtained results prove the effectiveness of organizational forms of training in separate periods with the use of ICT tools with the use of mathematical statistics methods. The analysis of the main indicators made it possible to identify the conditions and factors affecting the results of the successful completion of the USQE STEP 1, which made it possible to implement ICT tools that contributed to increasing the efficiency of the educational process. No conflict of interests was declared by the authors.

Is full reparation in the constitutional context a fundamental right: general analytical references?

The history of law has shown us that although there are certain institutions that have appeared throughout its development in certain branches of law, it is no less true that in the course of its development other areas have incorporated them to their field of action. This is what presents the current situation of integral reparation in the constitutional context, which has conditioned its most elementary needs in its fulfillment of concrete designs like any other sector of the Law. Due to the characteristics of this juridical institution that starts in Private Law, but that nevertheless the constitutional law also takes it and imposes its own functions on it, we do not hesitate to affirm that reparation is a constitutional right.

Taxation of special investment contracts participants

16. Balandina A.S. Analysis of theoretical aspects of tax benefits and tax preferences. Vestnik Tomskogo gosudarstvenogo universiteta = Tomsk State University Journal, 2011, no. 4 (16), pp. 105–110. (In Russ.). 17. Danilova V.V. Tax preferences: the concept, types, goals and procedures for obtaining. Oplata truda: bukhgalterskii uchet i nalogooblozhenie, 2022, no. 4, pp. 19–26. (In Russ.). 18. Wells D.A. The Theory and Practice of Taxation. New York, D. Appleton and Company Publ., 1900. 666 p. 19. Chua A.T. Precedent and Principles of WTO Panel Jurisprudence. Berkeley Journal of International Law, 1998, vol. 16, iss. 2, pp. 171–196. 20. Belousov A.L. Preferential regimes for conduct of business: regulation problems and law improvement areas. Khozyaistvo i pravo = Economy and Law, 2022, no. 10, pp. 30–41. (In Russ.). 21. Belousov A.L. Legal aspects of formation and development of special investment contracts in the Russian Federation. Legal Bulletin, 2022, vol. 7, no. 4, pp. 9–16. (In Russ).The subject. The preferential tax regime provided to the participants of special investment contracts has been functioning in the Russian legal system for about 8 years. Despite the systematic "fine-tuning" of its legal regulation, taxpayers still face the legislative gaps and contradictions of separate normative provisions entailing tax risks. It seems appropriate to put forward the hypothesis that the existing tax treatment of the participants of special investment contracts is not devoid of these drawbacks, especially in terms of regional regulation, and could be improved. Purpose of the study. The article represents an attempt to verify the aforementioned hypothesis and deals with selected provisions of the Russian legislation regulating preferential tax regime for participants of special investment contracts, which in addition to the Russian Tax Code includes the Federal Law "On Industrial Policy in the Russian Federation", regional and municipal normative legal acts. Methodology. The methodological basis of this study are general scientific methods (analysis and synthesis, induction and deduction), private scientific methods (interpretation of legal acts), as well as content analysis, study of reports and analytical references of governmental organizations. The main results. The study revealed that the Russian legislation, mainly regional and municipal, is not fully developed. As a consequence, the preferential tax regime for the participants of special investment contracts cannot efficiently function on the entire Russian territory. Also, the regulatory framework adopted at the federal level uses incorrect terminological apparatus in terms of defining tax support measures available to participants of special investment contracts, which entails tax risks for them. Conclusions. The revealed drawbacks of the preferential tax regime for participants of special investment contracts can be leveled by means of point-by-point amendments to the federal legislation. To this end, the authors of the present study propose specific steps to overcome these drawbacks.

Model Libraries of the Urals, Siberia and the Far East (on the National Library of Russia Monitoring Data)

The Librarianship Organization Sector of the Scientific and Methodological Department of the National Library of Russia (NLR) annually monitors statistical indicators of the public libraries network activities run by the Ministry of Culture of the Russian Federation, which results are presented in analytical references on the library’s website, stated in scientific reports and articles. Under monitoring, the Department’s specialists carry on analytical and synthetic processing of materials provided by central libraries or information centers of the departments of culture of the constituent entities of the Russian Federation. Lately, special attention is paid to model libraries formation, which creation was initiated in 2019 by the Federal project “Cultural Environment” within the framework of the national project “Culture”. The paper objective is to trace the dynamics of model libraries number at the territory of the Ural, Siberian and the Far Eastern Federal Districts (FD) and the Federation constituent entities in them for 4 years of the project functioning (2019-2022). Separately, data on model libraries of the new generation are recorded. The author analyzes the following indicators by districts and regions of the Urals, Siberia and the Far East: the number, types of model libraries, as well as the share of municipal libraries, material and technical conditions of which make it possible to implement the tasks of the Model Standard of Public Library Activities. The article names the regions standing out in terms of individual parameters; identifies the leaders in creating model libraries among the subjects of the Russian Federation beyond the Urals: Chelyabinsk Region in the Ural Federal District, Altai Territory in the Siberian Federal District, the Republic of Sakha (Yakutia) in the Far Eastern Federal District. It notes that the territories most remote from the center of the country – Sakhalin Region, Chukotka Autonomous Okrug, Kamchatka Territory – still have low amount of model libraries (especially model libraries of the new generation).

Straightforward monitoring of honey with foreign diastase by leveraging the differentiation in LC-UV proteome profiles of authentic and fraudulent samples

Honey adulteration using sugar syrups is ubiquitous and adulterated honey may also be prepared by direct addition of α-amylases from different sources to match the legislation for honey trade. Colorimetric diastase assays may report false negatives in terms of foreign diastase (FD) detection owing to using substrates being prone to be cleaved by any α-amylases. The main objective of this study was to develop a reliable analytical method to determine FD contained honey. For this purpose, intrinsic honey proteins were first isolated, enriched, and cleaned up via experimentally designed serial ultrafiltration methodology. Next, diastase and invertase as abundant honey enzymes were purified simultaneously from obtained crude protein isolate by means of FPLC and novel purification protocol. Total protein and enzyme activity assays along with SDS-PAGE analysis were conducted for purity check. Subsequently, two purity-confirmed enzymes were used as analytical references in method development. With the hyphenation of UV detection, optimized chromatographic resolution, and practical dilute & shoot sample pretreatment, Foreign Amylase Monitoring (FAM) method has been introduced for routine analysis. Purified authentic enzymes were labeled in LC-UV chromatogram of honey proteome profile to distinguish any unnatural enzyme/protein signal. According to the validation of the FAM method, precise (RSDR; 1.27%), and linear (mean R2 >0.995) results were able to obtain. Commercial honey samples (n = 202) collected over 3 consecutive years were probed using the FAM method and industrial α-amylases were also analyzed for verification. The diastase activities were also measured prior to FAM application to elucidate if any positive correlation. The developed method rapidly and reliably detected the presence of FD qualitatively. A total of 74 samples were found to contain FD. It was observed that the presence of FD was correlated in samples with abnormally high diastase activities and an apparent FD peak was identified readily in all enzyme adulterated samples. The developed FAM method and performed trend analysis allowed us to decipher a dramatic increase in FD existence and this revealed the recently emerging problem of honey authenticity.

MetaScenario: A Framework for Driving Scenario Data Description, Storage and Indexing

Autonomous driving related researches require the analysis and usage of massive amounts of driving scenario data. Compared to raw data collected by sensors, scenario data provide a preliminary abstraction of driving tasks and processes, explicitly integrate information about the road environment and the dynamic and static attributes of traffic participants, making it easier to conduct task understanding and decision making. However, many existing driving scenario datasets have the following two problems. First, it is not clear which data fields need to be recorded for driving scenarios. The data storage formats and organization standards are inconsistent. Second, the datasets cannot establish driving scenario indexing effectively. Existing datasets are sparsely annotated and difficult to index, which is detrimental to data sampling and extraction for machine learning process, thus hindering efficient fusion and reuse. In this paper, we propose MetaScenario, a framework for driving scenario data. We describe driving scenarios and design the centralized and unified data framework for the storage, processing, and indexing of scenario data based on relational database. The concept of atom scenario is proposed and characterized using semantic graphs. We also annotate and classify behaviors and interactions of traffic participants in atom scenarios by extracting the spatiotemporal evolution of semantic information. The annotation facilitates the indexing and extraction of data. The scenario datasets are further evaluated via the data distribution and annotation statistics. MetaScenario can provide researchers with convenient tools for scenario data extraction and important analytical references.

Methodological issues in qualitative research on HIV prevention: an integrative review.

In view of the growing concern about the use of qualitative approach in health research, this article aims to analyze how the qualitative theoretical-methodological framework of HIV prevention is presented in empirical research. We conducted an integrative literature review with the following guiding questions: "How is the qualitative theoretical-methodological framework expressed in empirical research on HIV prevention?"; "What are the limits and potentials of the qualitative methodological designs employed?". In the qualitative methodological discussion, five dimensions guided the methodological course and the presentation of findings, from the analysis of the characterization of qualitative studies to the contextualization of the studies and the methodological approaches used, highlighting the use of semi-structured interviews with thematic content analysis. We also examined social categories and analytical references, drawing attention to the plurality of these theoretical-conceptual references and to the authors' polyphony, and identified the limits and potentials of qualitative research. This study focuses on a scientific topic that is related to a wide variety of social groups and analyzes how they are affected by it, examining issues related to social inequality and other analytical possibilities surrounding HIV prevention, and providing resources for a comprehensive methodological discussion. Hence, avoiding the risk of conducting qualitative research based on checklists that limit inventiveness and openness to different designs and forms of execution and analysis is as pivotal as ensuring that the research is consistent and detailed in publications.

Risk Analysis of Thyroid Cancer in China: A Spatial Analysis

Thyroid cancer (TC) is the fastest growing cancer in China and has lots of influencing factors which can be intervened to reduce its incidence. In this article, we aimed to identify the risk factors of TC. The regional TC data in 2016 were obtained from the China Cancer Registry Annual Report published by the National Cancer Center (NCC). Univariate correlation analysis and generalized linear Poisson regression analysis were used to determine risk factors for morbidity of TC from the provincial and prefecture levels. High urbanization rate (UR) (RR = 1.109, 95%CI: 1.084, 1.135), high GDP per capita (PGDP) (RR = 1.013, 95%CI: 1.007, 1.018), high aquatic products (RR = 1.047, 95%CI: 1.020, 1.075) and dry and fresh fruit consumption (RR = 1.024, 95%CI: 1.007, 1.040) can increase TC incidence. Therefore, high PGDP, high UR, high aquatic products and dry and fresh fruit consumption were all risk factors for TC incidence. Our results may be helpful for providing analytical ideas and methodological references for the regionalized prevention and control of TC in a targeted manner.

Effect of fluid properties and boundary conditions on rod pump efficiency – Novel modeling

Among artificial lift systems, the most widely used method is sucker rod pumping. Since its inception in the oil industry, inefficiency in sucker rod pumping system due to gas interference is one of major concerns. The need for better understanding of gas interference during sucker rod pumping process is significantly required. Although, many models and techniques are available but there are many parameters, which need to be well studied and adequately addressed. This delineates the need to research all empirical parameters that could affect efficiency of conventional rod pump. The pump performance appears to be low in presence of gas which in extreme situation locks the pump and make the pump paralyzed completely. The models available in literature neglect mass transfer during suction process, which brings unreliable calculation of gas phase in pump. Models in literature on efficiency of pump and gas lock are studied to analyze the vital parameters and reasons for the inefficiency. The expedient analytical models to predict gas lock criteria and efficiency of conventional pump, based on liberation of gas during pumping, are established in this work. The models emphasize the importance of the fluids properties to be handled by pump, which affect the production rate while pumping with a gaseous phase. This new model considers free gas phase presence and mass transfer during working of pump. Sensitivity and comparative analysis of numerous parameters contributing to pump efficiency is established in this work. The study results provide some theoretical and analytical references for further advancements in system efficiency of conventional rod pump system and to improve economic benefits.

Contrasts of urban development in Bauru city (SP): slum and fortified enclaves in Jardim Nicéia

The urban development of medium-sized cities in the interior of São Paulo state reproduced, to a large extent, the segregating logic of the Brazilian urbanization of large urban centers throughout the XX century. This paper analyzes the remarkable characteristics of the recent urbanization process in the city of Bauru (SP), relating them to the rise of precarious settlements in the form of the favela and the phenomenon of contemporary segregation in fortified enclaves. The object of analysis is the Jardim Nicéia slum, located between gated condominiums in the southern part of the city. The methodology used included a bibliographic review of theoretical and analytical references, research on demographic and socioeconomic data sources (IBGE, City Hall and municipal public agencies) and socio-spatial analysis of the area, in order to interpret how segregation is reproduced in this specific territorial area.

Coevolution of collective opinions and actions under two different control inputs

This paper investigates a two-layer coevolution model of collective opinions and actions under two different control inputs. First, we introduce two control inputs, opinion regulator and impulsive stimulation, into this model. While changes in opinions tend to be gradual, changes in actions can instantly occur through external stimuli. These two inputs are control methods implemented on opinions and actions, respectively. Next, we conduct a series of investigations on how shifts of the collective opinions and actions are realized under the interventions brought by the control inputs. With only the opinion regulator, we explore conditions of the internal attributes of generic individuals. Assuming only the impulsive stimulation existed, we pay more attention to how to implement the intervention. These results provide valuable analytical references for guidance on public opinions and behaviors. Last, we show the validity of our theoretical results through numerical simulations.