Main Dimensions Research Articles

Совершенствование проточной части газосепараторов с использованием мультифазного коэффициента относительной скорости движения дискретных частиц

The paper analyzes features of the flowing formation fluid that contains free gas bubbles in the flow part of a vortex-type separator with the movable screw. Expressions are derived for a dimensionless multiphase coefficient of the discrete particles relative separation rate and the multiphase similarity criterion, which are making it possible to evaluate the gas separator efficiency, design and develop new devices based on the previously created highly efficient models. The derived equations allow determining the main geometric dimensions of the gas separator flow part based on the given radial dimensions, nominal flow rate and permissible content of free gas at the inlet. For the obtained geometric dimensions of the gas separator flow part, it becomes possible to construct dependences of the separation coefficient and the permissible amount of free gas at the inlet on the rotor rotation speed, flow rate and physical properties of the multiphase mixture.

Whole-to-Part Argumentation Instruction: An Action Research Study Aimed at Improving Chinese College Students’ English Argumentative Writing Based on the Toulmin Model

In recent years, the challenges and lack of progress in writing argumentative essays in English have posed a pedagogical challenge for Chinese university students. To address this issue, this paper adopts an action research pedagogy and implements a 10-week intervention aimed at teaching argumentative writing based on the Toulmin model of argumentation. The instructional process followed a holistic-to-specific approach, encompassing the following three stages: (1) introduction of the general model, (2) instruction on the main dimensions of argumentative elements, and (3) teaching of the subdimension of argumentative elements. Data collection for this study included teacher-teaching diaries, students’ interviews, and four writing scores. Both paired-sample t-tests and repeated measures analyses were conducted, revealing significant improvements in students’ overall performance and the quality of argumentative elements across the different stages. This paper provides a comprehensive discussion on the impact of this whole-to-detail approach to teaching argumentation on the development of argumentative essay writing skills.

Untimely thoughts on the culture of diversity

The study of cultural diversity and relevant models of diversity management, including historical patterns of cultural dominance, helps to form immunity to the latest manifestations of Eurocentrism. As a new approach to diversity, interculturalism implies a shift in the focus from the diversity of cultures and multicultural coexistence to the culture of diversity. The main dimensions of the culture of diversity are awareness of diversity, recognition of diversity, engagement in contexts of diversity, and the creation of more common public spaces. Another important trend is rethinking the diversity: a) its destigmatization as a phenomenon associated with Others, with exotic and peripheral loci, and representation of diversity as an advantage in terms of creativity and innovation; b) conceptualization of contemporary social and cultural contexts in terms of superdiversity. Unlike the classical concepts of multiculturalism, interculturalism focuses on both positive contacts as the most promising way of social integration and social dynamics in local contexts of superdiversity. However, the understanding of these processes differs in the political (G. Bouchard), social (T. Cantle) and cultural (R. Zapata-Barrero) directions of interculturalism. Under the destruction of social structures and institutions, interculturalism focusing on the development of interpersonal contacts and relations across borders can become a basis for the search for compromises and mutual understanding. However, the ideas of interculturalism and the processes launched by it turned out to be ‘locked’ in Western contexts, outside of which polarization is obvious in both political and cultural spheres. These tendencies imply an epistemological and ontological distinction between the West and Russia, producing gaps in the social-cultural space, patterns of escalation of schismogenesis and cultural encapsulation, and the rejection on intercultural contacts.

Digital tools to support the implementation of self-care among people with problematic substance use: An integrative literature review

Problematic substance use causes significant harm to individuals, communities and society as a whole. Nowadays solutions to bring substance abuse under control and provide help are being sought from digital tools. This literature review scrutinizes digital applications and internet-based self-care programs from the perspective of providing services. The purpose is to ascertain how the preconditions for the implementation of self-care are understood in studies addressing digital tools for the substance abuse sector. The question posed concerns what features in digital applications supporting control of substance abuse, their users and operating environment influence the implementation of self-care. The research method is an integrative literature review. The data consist of peer-reviewed scientific publications from the period 2012–2022. Data were gathered from two databases (ProQuest Central, PubMed). The final corpus comprises 18 research articles. The analytical frame of reference is the definition by El-Osta and others of four main dimensions of self-care. The findings suggest that factors pertaining to applications in the implementation of self-care are the technical usability of the service, the option for anonymity, variation in content, active reminders and application feedback, gamification and ability to identify with the user. Factors pertaining to the users, in addition to age and gender, are mode of substance abuse, duration of using history, severity of the problem, readiness for change, possible concurrent diagnoses, ability to process own feelings, social relations and digital literacy. Factors pertaining to the operating environment are legislation governing substance abuse, national intoxicant culture, stigma attached to substance abuse treatment, availability of support outside the application and the pandemic situation restricting face-to-face interaction. The diverse nature of the group of individuals with problematic substance use will in the future increase the need for user profiling and more individualized tailoring of application content in keeping with their life situations and stages of recovery.

„Бялата стая“: отвъд текста и контекста

The essay is dedicated to Bogomil Raynov's story Roads to Nowhere and the script of the film “The White Room” based on it. Through parallels with examples of existentialist literature and authors such as J.-P. Sartre and A. Camus, it is shown that the work bears the marks of a literary work created with the pathos of existentialism, which encodes the main stages and dimensions of rebellion (metaphysical, political, artistic). The role of the color white, internal monologue, movement, detail, and the convergent-divergent effect obtained from the use of the second person in the narrative is emphasized. The external signs of chaos and awareness of the absurd are sought. The thesis is defended that with the story Raynov in his way reaches the idea of the conscious choice of responsibility and human solidarity of Je me révolte, donc nous sommes (I rebel, therefore we are!) of Camus.

Guideline for Preliminary Design Phase of Trawler Type Yachts

Yacht design is a multidisciplinary process that consists of set of iterative sub-processes. The main aim of the whole process is to reach the optimum design that satisfies not only the engineering-related requirements, but also the user’s expectations. In the preliminary design process, determination of the type and the main dimensions of the yacht according to the user’s preferences is followed by the processes such as the general arrangement plan, determination of the hull form and superstructure design, estimation of hydrostatic and hydrodynamic characteristics, etc. In this research, it is aimed to obtain a parametric design framework which enables to reach hull form characteristics, layout parameters and resistance estimation values with respect to various speeds, only by using only LOA of trawler type motor yachts. In this content, 26 trawler type motor yachts were investigated and their hull were modeled for speed-resistance calculations. As a result of the research, graphics and tables were presented that allow to reach the characteristic parameters, which are important in terms of design and engineering, by using only the LOA value in the preliminary design phase of the trawler type motor yachts.

Method for the formation of algorithm elements for designing a vessel for the subsea technical operations support using a database of similar vessels

The elements of the algorithm for designing vessels for underwater technical work such as formation of the power station of the designed vessel are considered in the paper. These are formation of the power station of the designed vessel, selection and installation of crane and diving equipment, hardware intended for use on a vessel of manned submersibles and determining the dimensions of mobile operation equipment intended for future installation on a vessel being designed to perform appropriate technological operations on the sea shelf, based on the data of a group of the same type vessels. The algorithm is intended for definition of the main dimensions of the designed vessel, namely, a number of the installed diesel generators and ratios of total power of the power station with a width, loading capacity of the crane and power of a propulsive complex of the designed vessel. Systematization of the used crane equipment as for performance of cargo and underwater and technical works, and for hardware service is performed. Systematization of a diving complex, hardware and the manned submersibles assumed to use on the vessel is also performed. The relation between the dimensions of the main deck and ship structures necessary for the installation of mobile technological equipment and complexes using databases of the same type of vessels is systematized. Using the existing design experience and a database of ships of similar purpose, a formula that allows, as a first approximation, to estimate the sizes of the power plant, load-lifting devices and diving equipment planned for installation on the designed vessel that provides service to submersibles of any type has been compiled.

Critical digital literacies at school level: A systematic review

AbstractThe rapid and ongoing technological developments and the changes in societal practices require us to update our understanding and skills relating to digital technology use continuously. Various frameworks have been created in recent years to explore the different aspects of digital literacies or digital competencies and a range of newer concepts and dimensions have emerged in the literature aiming to capture the complexity of digital engagement. The main aim of this systematic literature review (SLR) was to map out which elements or issues of critical digital literacies (CDL) relevant for school education currently feature in the academic literature and international policy documents. The secondary aim was to use the findings of the SLR to inform the creation of a research‐based framework for school education. The review process followed a systematic protocol for answering specific research questions. Research articles were sought in two electronic databases—EBSCO (Academic Search Complete) and Web of Science—and policy documents were sought on the Internet using Google search. A total of 139 research articles and policy‐related documents were used for the analysis. The main dimensions based on the analysis were the following (in the order of most hits): E‐safety, Participation and presence, Digital literacy, Media literacy, Digital citizenship, Technology literacy, Information literacy, Data literacy, Digital game literacy, Online learning, Digital creativity and innovation, and Digital well‐being. The emphasis in the research articles was on negative issues, although publications also outlined several positive issues about digitality. The emphases of the research articles and policy‐related documents differed somewhat. The findings of this SLR have implications for researchers, policy makers and educators interested in the changing nature of critical digital literacies and the dimensions and subdimensions relevant for school education. Context and implicationsRationale for the study: This systematic literature review (SLR) identifies the key elements and issues of critical digital literacies (CDL) relevant to school education, as documented in academic literature and international policy documents. In addition, it utilises the findings of the SLR to develop a research‐based framework for CLD in school education.Why the new findings matter: Our findings contribute to capturing the different aspects of CDL in the context of compulsory education and offer original insights with regard to supporting the development of teachers and students' critical digital literacies in the future.Implications for researchers, practitioners and policy makers: This SLR has implications for research as it has highlighted the need to continuously update theoretical models and frameworks relating to CDL. Although certain accepted core dimensions can provide a stable foundation for representing emerging phenomena, it is essential to maintain flexibility to address the technological advancements. An implication for policy making is the recognition of the need for continuous professional development and pedagogical support for teachers and students. The value for educational practitioners is that it elucidates the emerging notions of CDL, and it enables educational institutions to enhance their practices and initiatives related to CDL.

Study of the influence of the vessel stern shape on its hydrodynamic characteristics

Determining the main dimensions of the small vessels while designing is an important and difficult task due to the large number of mutually exclusive factors affecting the hydrodynamic characteristics of such vessels. The existing patterns for determining the length, width and draft of small vessels are quite general. This complicates their usage for the vessel of a specific design. In this case, it is necessary to check technical solutions, one of the ways that may be implied is the usage of computational fluid dynamics (CFD) methods. This paper presents the results of the numerical simulation of boat movement in the transient mode with Froude numbers up to 1.2. The process of preparation and numerical modeling of the aerodynamics of a composite wing in the NUMECA/FineMarineTM software package is described, the choice of the turbulence model and the parameters of the computational grid, including the resolution of the boundary layer, is justified. The study of the influence of three variants of the width and shape of the aft tip on the change in draft, trim angle, wetted surface and resistance of the boat is carried out. An increase in the width of the flat planing part of the aft tip has a favorable effect on the hydrodynamic characteristics of a small vessel, even when moving in transition mode at L/B from 3.5 to 3.99. At the same time, the use of the extension of the underwater part of the aft tip requires a more detailed study.

Design dimensions of corporate venture capital programs—a systematic literature review

AbstractThere is a plethora of research on organisational design elements of corporate venture capital (CVC) programs. However, the fragmented nature of this vein of corporate venturing research has led to an inconsistent picture regarding the organisational design of CVC programs. The goal of this study is to provide a holistic picture for both scholars and practitioners by integrating empirical research on the design of CVC programs. Therefore, the study employs a systematic literature review approach including a sample of 41 studies published from 1987 to 2023. For a systematic assessment of design elements of CVC programs, an inductive concept development approach is used to illustrate four main design dimensions–personnel, corporate relationship management, investment operating model and portfolio relationship management–which reflect 69 descriptive design elements. While previous studies have mainly looked at individual design dimensions of CVC programs from a strategic perspective, this paper presents comprehensive view on organisational structures of CVC programs by identifying building blocks of CVC design according to chosen objectives and available typologies. By specifying and allocating design dimensions to structural types and objectives of CVC programs, this study may also serve as a foundation for further research on the concepts which prevent high rates of early abandonment of CVCs.

What is research funding, how does it influence research, and how is it recorded? Key dimensions of variation

AbstractEvaluating the effects of some or all academic research funding is difficult because of the many different and overlapping sources, types, and scopes. It is therefore important to identify the key aspects of research funding so that funders and others assessing its value do not overlook them. This article outlines 18 dimensions through which funding varies substantially, as well as three funding records facets. For each dimension, a list of common or possible variations is suggested. The main dimensions include the type of funder of time and equipment, any funding sharing, the proportion of costs funded, the nature of the funding, any collaborative contributions, and the amount and duration of the grant. In addition, funding can influence what is researched, how and by whom. The funding can also be recorded in different places and has different levels of connection to outputs. The many variations and the lack of a clear divide between “unfunded” and funded research, because internal funding can be implicit or unrecorded, greatly complicate assessing the value of funding quantitatively at scale. The dimensions listed here should nevertheless help funding evaluators to consider as many differences as possible and list the remainder as limitations. They also serve as suggested information to collect for those compiling funding datasets.

Defining Transparency: A Functional Approach

Transparency is a fuzzy concept within the governance literature; it is commonly linked, through blurry categorisations, to other concepts in the political science and public administration scholarship, such as accountability and corruption. This reflection piece seeks to tackle this blurriness and advance the concept’s analytical precision by presenting and discussing transparency’s main dimensions, as well as its framing within the scholarly body of good governance, democracy, and development. To do so, the reflection paper presents a novel approach; to define transparency in the form of a function (which places transparency in relation to, and as a function) of its two constituting dimensions: a) information (timely and qualitative), and b) accountability mechanisms (namely, a free media environment and legitimate accountability channels). Reviewing a sample of relevant and influential works in the broad field of transparency, these two dimensions are analysed highlighting the common analytical factors found in the scholarship, pointing towards potential applications of the novel functional approach framework. The focus is placed on the distinct institutional and contextual levels, addressing the various analytical determinants of transparency. In doing so, the reflection presents and discusses some prospective research hypotheses, marking the road for future theoretical and empirical research, as well as policy implications.

Explainability in process outcome prediction: Guidelines to obtain interpretable and faithful models

Process outcome prediction pertains to the classification of ongoing cases of (business) processes into a given set of categorical outcomes. This field of research has seen a strong uptake in recent years due to advances in machine and deep learning. Although a recent shift has been made in the field of process outcome prediction to use models from the explainable artificial intelligence field, the evaluation still occurs mainly through predictive performance-based metrics, thus not accounting for the explainability, actionability, and the implications of the results of the models. This paper addresses explainability through the properties interpretability and faithfulness in the field of process outcome prediction. We introduce metrics to analyse these properties along the main dimensions of process data: the event, case, and control flow attributes. This allows for comparing explanations produced by transparent models with explanations generated by (post-hoc) explainability techniques on top of opaque black box models. We utilise thirteen real-life event logs and seven classifiers, encompassing a variety of transparent and non-transparent machine learning and deep learning models, complemented with (post-hoc) explainability techniques. Next, this paper contributes a set of guidelines named X-MOP for obtaining explainable models for outcome prediction, which helps to select the most suitable model by providing insight into how the varying preprocessing, model complexity, and explainability techniques typical in process outcome prediction influence the explainability of the model.

Review: technological resources for vulnerable communities

Several socio-environmental conditions (economic, ecological, geopolitical, institutional, psychological, or engineering vulnerability, among many others) are putting at risk and violating numerous communities. In this panorama, technology is assuming more and more the potentiality to become (1) one of the main drivers for change or (2) a creator of greater and deeper socio-environmental gaps. Moreover, technology adaptation is a process which takes difficulties, risks, and complexities that must be considered and addressed by all the actors, who participate in those processes of sustainable transformation. To take into account the challenges and opportunities that the processes of transfer and adaptation may have in vulnerable communities, this paper conducts a systematic review of the main existing scientific and academic literature on the role of technological resources in vulnerable communities (impacts, benefits, risks, etc.). In order to achieve this purpose, a bibliographic study is carried out in the most important bibliographic databases under the methodological proposal Scoping Review. A first analysis focuses on: annual behavior, disciplines, main addressed issues, institutions, and countries funding and supporting research on these topics. The research analyses also the main dimensions of vulnerabilities considered by academic literature and the technological resources, which usually these research projects refer to. The research conclusions aim to guide future research on the technological implications in vulnerable communities and to identify research opportunities, with a particular focus on design and architecture studies.

Three main dimensions reflected by national SDG performance

Unraveling the complexity of the 17 interacting sustainable development goals (SDGs) is crucial for their achievement. Empirically revealing the dimensions of the SDGs helps generalize the dominant features of SDGs and better understand their drivers. Here, using a database of 166 countries' progress toward achieving each individual SDG, we found that about 70% of the variability of national SDG performance can be captured by three dimensions: socioeconomic development at the expense of resource and climate, the environment, and development at the expense of equality. Moreover, these dimensions are mainly affected by the economy; as gross domestic product (GDP) per capita increases, the first dimension increases monotonically, the environment dimension decreases and then increases, and the inequality dimension increases and then decreases. Our findings indicate a dim prospect of eventually achieving all SDGs because of the conflicts between economic growth and resource and climate goals under the current development paradigm, highlighting the importance of sustainable transformation.

Inclination of Teachers to Implement Outcome-Based Education in English Courses in Saudi Universities

This study examines the inclination of English teachers in different Saudi universities to implement outcome-based education (OBE) in their English courses. OBE represents a nontraditional educational approach that depends on setting clear outcomes at both course and program levels. This approach emphasizes student competency through theoretical and practical demonstration of these outcomes with clear evidence of performance. OBE is a student-centric pedagogy that prioritizes students’ benefits. The present study employed a survey as a data collection method, and the data were subsequently analyzed using IBM SPSS. The survey included three main dimensions: learning, teaching, and measuring students’ performance (assessment), all of which are directly linked to the tenets of OBE. Participants in the survey were exclusively English language academic staff currently employed in different universities across Saudi Arabia. The study included participants from various Saudi institutions located in different regions to ensure broader representation and more comprehensive analysis. The findings of this investigation show that English teachers working in Saudi universities are inclined toward implementing OBE. Also, the findings demonstrate that biodemographic factors, such as gender and age, as well as other professional aspects such as job title, academic rank, or institutional affiliation, do not interfere with teachers’ inclination toward OBE implementation. In conclusion, the study demonstrates a positive attitude among English teachers toward OBE, emphasizing its viability and potential applicability in the Saudi higher education context.

Descriptive and Content Analysis of Questionnaires Used to Assess Evidence-Based Practice Among Dietitians: A Systematic Review

BackgroundEvidence-based practice (EBP) is described as the integration of the following 3 main dimensions in health professionals’ decision making: best currently available research evidence, professional expertise, and patient’s values and circumstances. Barriers to EBP at an individual level have been assessed using questionnaires. Knowing which EBP dimensions are actually explored in these questionnaires is essential to promote EBP and its adoption. ObjectiveThe aim of this review was to identify and describe questionnaires that have been used among dietitians to evaluate knowledge, skills, attitudes, and/or behaviors related to EBP, and to perform a content analysis of these, drawn on the EBP dimensions explored. MethodsQuestionnaires were identified through a systematic review in MEDLINE, Embase and the Cumulative Index to Nursing and Allied Health Literature (last search was November 2022). Eligibility criteria were studies using, evaluating, or developing questionnaires meant to evaluate knowledge, skills, attitudes, and/or behaviors related to EBP among dietitians. The content analysis was conducted to identify the EBP dimensions explored (ie, research evidence, professional expertise, and/or patient’s values and circumstances). Questionnaire items were categorized as follows: 1 sole EBP dimension, a combination of dimensions, or no identifiable dimension. ResultsThirty reports (25 studies) were included. The analysis of the 847 items extracted from the 25 questionnaires used showed that the main EBP dimension explored was the integration of research evidence into decision making, found in 75% of items, solely or in combination with another dimension. Professional expertise was explored in 18% of the items, patient’s values and circumstances were found in 3%, and the combination of these 3 dimensions was found in <1%. ConclusionsThe important imbalance of explored EBP dimensions in the questionnaires used may lead to a partial and misleading evaluation that prevents efficient strategies to foster EBP. There is an important need to develop more integrative and accurate evaluations of EBP targeting dietitians to promote and develop high-quality dietetics practice.

CONTAINER STORAGE AS AN ELEMENT OF ENHANCEMENT OF ENVIRONMENTAL SAFETY AND A STATE POLICY TOOL FOR DEALING WITH TECHNOLOGICALLY ENHANCED SOURCES OF IONIZING RADIATION

In order to implement the state environmental policy and ensure environmental safety, a number of normative legal acts, laws and state standards have been implemented on the territory of Ukraine. Special attention was paid to the State Targeted Environmental Program for the Management of Radioactive Waste, the main principle of which is the implementation of the protection of the population and the natural environment in order to create safe conditions for the existence of current and future generations and ensure sustainable development. The article highlights the results of research and development works on the development and certification of a set of packaging type IR-2 for the transportation and temporary storage of low- and medium-level solid radioactive waste KTTZ-NS-1-02.00.00, as a key element of environmental protection technologies during handling with radioactive waste. The urgent task of handling radioactive waste, which is caused by the accumulation of a significant amount of sludge in the territories of the oil and gas production complex enterprises and requires temporary storage and transportation, has been solved, as a prerequisite for increasing the efficiency of ensuring the environmental safety of the mentioned objects of formation. The technical characteristics of the packaging kit are described in detail, schematic drawings are provided, and the main parameters and dimensions of the developed packaging kit type IR-2 are provided. The scheme of the main stages of the testing of this packaging set and the certificates obtained as a result of such work, which were carried out jointly with representatives of the State Inspection of Nuclear Regulation, are presented. The developed packaging set significantly exceeds the performance of the packaging set currently used in temporary storage facilities. Keywords: environmental safety, technogenically enhanced radioactive waste, protection technologies, containers, low- and medium-level waste.

Hotel Preferences of Customers in the Lens of Fear of Covid-19

The effect of service quality elements that change with the epidemic on the fear of the epidemic and fear of covid 19 on hotel preferences has been examined in the study. Data were collected from 404 participants. According exploratory factor analysis results three main dimensions are determined namely contact, contagion and food &amp; service. The model was tested using the structural equation model. As a result of the SEM analysis, participants attach great importance to the contagion dimension. No significant relationship was found between the hotel preference elements, contact and food-service, and the fear of Covid-19. Another important finding of the study is that fear of Covid-19 has a negative and significant effect on hotel preference intention.

Avatar taxonomy: a new technological tool to enhance the consumer-brand relationships

PurposeAvatars, which are used as a technology and marketing tactic, can embody consumer-facing employees and mimic their real-life roles on companies' websites, thereby playing a key role in enhancing the relationships between consumers and brands in the online environment. Academics and practitioners have increasingly acknowledged the significance of the consumer-brand relationship in both traditional and online contexts. However, the impersonal nature of the online environment is considered to be a hindrance to the development of these relationships. Despite the importance of this technology, little attention has been paid to the investigation of the avatar concept from a marketing perspective. This paper explores the nature of the avatar concept, including its main characteristics, dimensions, and conditions as well as the attitudinal and behavioural consequences of avatar users.Design/methodology/approachAdopting the qualitative design, a taxonomy was developed from interviews. In total, 42 interviews were conducted with current university students. 30 participants participated in the exploratory interviews. A total of 12 interviews were conducted during the in-depth stage based on findings in the preceding research.FindingsBased on the qualitative data analysis, a taxonomy was developed. The idea of the taxonomy is summarized in that different dimensions of the avatar are considered the main base (first phase) of the taxonomy. There are consequential three parts: the attitudinal consequences related to the website; the attitudinal consequences related to the brand; the behaviours towards the brand. These behaviours represent the final phase of the taxonomy.Originality/valueBy developing a taxonomy of using avatars on brands' websites, the authors advance the understanding consumer-brands relationships. Using avatars' verbal interactions helps in shaping consumers' cognitive, affective, attitudinal and behavioural responses and add vital empirical evidence to the increasing body of research and practices involving avatar usage in the interactive marketing area.