bluuebunny/crossref_metadata_2025 huggingface dataset:
Novel numerical simulation method for quasi-continuous wave laser processing of carbon-carbon composites and its application in parameter inversion
Authors: Ma Jian-Wei , Yang Zhi-Ben , Wang Song-Hong-Ze , Yuan Yang-Xin , Jia Zhen-Yuan
Published: September 2024

Carbon/carbon composites (C/Cs) are extensively utilized as structural materials and functional materials in the aerospace industry. Laser processing technology is an effective means of precision manufacturing C/Cs parts, with the advantages of no mechanical impact and high efficiency. Accurately predicting the material removal of C/Cs during laser processing is of great significance for the precision manufacturing of C/Cs parts. However, the numerical simulation models that can directly display the microstructure of C/Cs are still inadequate, and measuring the sublimation temperatures of two different phases of carbon is challenging. This paper establishes a three-dimensional microscopic heterogeneous finite element (FE) model of C/Cs, and the FE simulation of quasi-continuous wave (QCW) laser ablation of C/Cs is optimized using the restart method taking into account the residual temperature. Combining the optimized FE model, the material parameters of C/Cs are inverted using response surface methodology and genetic algorithm, resulting in the sublimation temperatures of the fiber phase being 4029.01 K and the matrix phase being 3481.86 K. After these parameters are substituted into the FE model, the resulting simulations are then compared with the experiments of QCW laser processing C/Cs, which reveals high correspondence between simulated morphology and experimental data, with the relative error of predicted ablation depth not exceeding 6.169%. The revised FE model can guide the laser processing of C/Cs, and the inverted material parameters can provide references for the theoretical study of the laser processing of C/Cs.
The PKR-T2DM-Apoptosis-Inflammation Axis: An Insightful Review Supporting the Role of the Axis in Periodontal Disease
Authors: Rao Suresh , Suresh Ashritha
Published: September 2024

Protein kinase R (PKR) has emerged as a critical regulator in the pathogenesis of both diabetes and periodontal diseases. PKR, a serine/threonine protein kinase, is activated in response to various stress signals, including viral infections, metabolic disturbances, and inflammatory cytokines. Understanding the role of PKR in the context of type 2 Diabetes Mellitus (T2DM), apoptosis, and inflammation in periodontal diseases can provide insights into periodontal disease pathophysiology and help formulate novel therapeutic strategies. This review aims to provide a comprehensive overview of the PKR-T2DMapoptosis-inflammation axis in periodontal diseases, detailing the structure and function of PKR, the impact of diabetes on periodontal health, the mechanisms of apoptosis and inflammation in periodontal tissues, and the potential therapeutic implications.
Effect of Specified pH Conditions on Leaching of Environmentally Important Major and Trace Elements from Fly Ash-Marl Mixtures: A Case Study of the Lignite Center of W. Macedonia
Authors: Georgaki Maria Nefeli , Kantiranis Nikolaos , Mytiglaki Christina , Vogiatzis Dimitrios
Published: September 2024

Significant environmental issues concerning the risk of soil, surface, and groundwater pollution are indicated by the presence of dissolved elements in the leachates. In the Lignite Center of Western Macedonia, the current study investigates the leaching behavior of main and trace elements from fly ash-marl mixtures, focusing on the effect of pH conditions on environmental impacts. Five mixtures of fly ash-marl were prepared in different percentage ratios by weight, simulating the possible deposition conditions to investigate the leaching of their contents in specified pH conditions. Initial fly ash is enriched in CaO, SO3, P2O5, and MgO, exceeding continental crust average composition in U, Br, Sb, Ni, Cd, W, and Mo. In contrast, the original marl is enriched in CaO and Ni but depleted in other major elements. The pH significantly affects leaching, with high concentrations of Ca2+ both in fly ash and in mixtures with high concentrations of fly ash, particularly at pH 8. Significant leaching of Cr and Ni is observed, with Cr mainly from fly ash at pH 10–12 and Ni increasing in marl at pH 6. The findings highlight the significant role of fly ash in the environmental element release and the importance of effective management.
APRENDIZAGEM SIGNIFICATIVA E DESAFIOS DA ABORDAGEM STEM NO ENSINO DE CIÊNCIAS E MATEMÁTICA EM MOÇAMBIQUE
Authors: Guiraguira Emília Maria José , Chalenga Damasco Rocha Mateus , Napapacha Vital de Melo Lopes , Nunes Claudio Pinto
Published: September 2024

Na sociedade actual, os desafios de mudanças sistemáticas levam-nos a reflectir sobre a actividade docente com vista a adopção de abordagens contextualizadas e interdisciplinares que contribuam para a aprendizagem dos estudantes de forma significativa. O presente trabalho de natureza qualitativa versa sobre as possibilidades de integração da abordagem STEM (ciências, tecnologias, engenharia e matemática), para estimular a criatividade e a inovação na sala de aulas de Ciências e Matemática no contexto moçambicano. Este estudo visa a compreensão de novas formas de ensino e aprendizagem, de modo a desenvolver a aprendizagem significativa com a aplicação da abordagem STEM, numa dimensão de abordagem integrada.  O estudo mostra que a integração da abordagem STEM em Moçambique ainda enfrenta vários desafios dentre eles a integração curricular e sua implementação, formação de professores de ciências e matemática, orientados na abordagem STEM, escassez de recursos educacionais e infraestruturas adequadas. Estes desafios podem dificultar o desenvolvimento de habilidades práticas de ensino assim como limitar as oportunidades de aprendizagem dos alunos nas aulas de Ciências e Matemática.
Examining herding behavior in the cryptocurrency market
Authors: Gherghina Ștefan-Cristian , Constantinescu Cristina-Andreea
Published: September 2024

Research background: The research employs the Cross-Sectional Absolute Deviation of returns (CSAD) model, augmented with modifications by Chiang and Zheng (2010) to address asymmetric investor behavior, facilitating the detection of herding behavior. Additionally, the study leverages Quantile Regression (QR), demonstrated by Barnes and Hughes (2002) to effectively capture extreme values in financial data with fat tails or skewed distributions. This approach is particularly relevant in the context of the volatile cryptocurrency market, allowing for the analysis of outliers and the assessment of the magnitude of return impacts using T-stat and Quantile Process Estimates.
Purpose of the article: This study primarily centers its empirical analysis on identifying market-wide herding behavior (Henker et al., 2006) within the cryptocurrency market, spanning from January 1, 2016, to February 1, 2019, juxtaposed with the period from January 1, 2019, to January 7, 2022. The selected time frames were chosen to evaluate potential shifts in herding dynamics within this market, particularly during its phases of rapid expansion and subsequent stagnation.
Methods: The Cross-Sectional Absolute Deviation (CSAD) methodology, as proposed by Chiang and Zheng (2010), was employed for herding detection, alongside the incorporation of dummy variables to discern the market conditions under which herding occurs. Herding behavior manifests when dispersion diminishes, or its increase is less than proportionate to market returns, indicating an inverse correlation between market returns and dispersion in the presence of herding. Additionally, CSAD estimation was conducted utilizing quantile regression to encompass a broader range of quantiles, facilitating the identification of herding tendencies across various return magnitudes. To delve further into investor behavior, Bitcoin was utilized as an illustrative example, elucidating investor reactions to market bubbles through the application of the Hodrick-Prescott (HP) Filter.
Findings & value added: The findings reveal instances of herding behavior during downward market movements and at higher return levels preceding 2019. However, post-2019, herding is observed during upward market movements and at medium to higher return levels. This study presents compelling evidence of herding phenomena coinciding with the bursting of bubbles, particularly concerning Bitcoin. The findings provide a deeper understanding of how herding manifests differently across distinct market conditions and timeframes, offering actionable insights for investors and policymakers navigating the volatile cryptocurrency landscape. Additionally, by highlighting the correlation between herding behavior and market bubbles, particularly in the context of Bitcoin, this study contributes to the broader discourse on cryptocurrency market dynamics.
Names of Russian Oven and Its Components in Arkhangelsk Dialects
Authors: Nenasheva L. V.
Published: September 2024

This article is dedicated to the study of dialectal vocabulary belonging to the thematic group “Russian Oven,” which is included in the second volume of the “Thematic Dictionary of Arkhangelsk Dialects.” This dictionary documents lexicon related to wooden structures and their components. The primary aim of this research is to record the nominations within the thematic group “Russian Oven” and to determine the meanings of the selected words for inclusion in the dictionary. The material for this article and the dictionary comprises dialectal records housed in the archive of the Department of Russian Language and Speech Culture at the Northern (Arctic) Federal University named after M. V. Lomonosov. The study employed a method of comprehensive sampling of words from the department’s archive, along with descriptive and lexicographic methods to clarify word meanings. The research reveals the diversity of dialectal vocabulary that names parts of the Russian oven; the same component may have various designations across different regions of Arkhangelsk Oblast, leading to the formation of synonyms, as well as phonetic, morphological, and derivational variations. A significant derivational cluster consists of words with the root -печ-, which are formed through suffixation (pechka, pechishcha, pechurok, pechurochek, etc.) and prefix-suffixation (opechek, opechye, podpechek, podpechye, pripechek, pripechye, protipechye, etc.).
Media Representation of Tutoring as a Phenomenon of Pedagogical Discourse
Authors: Efimova A. D.
Published: September 2024

The aim of this study is to explore the media representation of tutoring as a phenomenon within pedagogical discourse. An analysis of a thematic corpus of texts reveals that the imported concept of TUTORING acquires new conceptual features that reflect the linguistic and cultural specificity of its interpretation in the Russian-speaking media landscape. Distinctive characteristics of the media representation of the conceptual education of TUTOR are established in comparison with traditional pedagogical professions and its definition in professional standards. It is demonstrated that in the Russian-speaking media discourse, tutoring is perceived by the professional discursive community as a profession of the future, tasked with shaping individuals capable of addressing the global challenges of modernity. Evaluative characteristics of the phenomenon of TUTORING are identified, reflecting its perception by both the professional discursive community and a broader readership. In the former case, positive evaluations prevail, characterized by notions of ‘assistance’ and ‘support’; in the latter, negative evaluative traits emerge, associated with skepticism towards tutoring. Figurative-perceptual characteristics of tutoring are presented, expressed through metaphorical strategies based on source domains such as “Sport,” “Journey,” and “Nature.” The study of the phenomenon of tutoring underscores the significance of the discursive factor in understanding the concept.
Media Communications as a Context for Imprinting Formation
Authors: Radiontseva E. S.
Published: September 2024

The author of this article posits that media communications serve as a context for the formation of imprinting — a psychophysiological mechanism whereby impressions or images are etched into the brain, evolving into stable behavioral programs. The identification of these programs is facilitated through the analysis of media texts with a high attention coefficient. The study analyzed 200 media texts across various typological niches within the contemporary media system: online news outlets, social media platforms (VK, Odnoklassniki), and blogs, including the “Zen” platform. The findings indicate that different typological segments of the media system represent distinct behavioral programs. In online news outlets, behavioral programs are explicitly manifested in cognitive actions aimed at understanding processes related to Russia’s economic and political landscape. In social media, the prevailing behavioral program is encapsulated in a sentiment inspired by the phenomenology of serendipity. The “Zen” blog platform reveals imprinting through the categories of “irresponsibility,” “playfulness,” and “hooliganism.” In other blogs featuring high attention indices, imprinting is observed in the contemplation of professional issues related to activities in the digital space. The various typological niches of the media system are geared towards the formation of heterogeneous psychophysiological mechanisms, which transform into an axiological foundation that shapes diverse behavioral programs.
Textual Criticism of Mikhail Lermontov’s Poem “Valerik” (1840)
Authors: Kiseleva I. A. , Potashova K. A.
Published: September 2024

The focus of this study lies in the editorial distortions present in the scientific editions of Lermontov’s works concerning the poem “Valerik” and the necessity of reconstructing a definitive text in accordance with the author’s intent. The objective of the research is to identify semantic inaccuracies in the publications of “Valerik” and to elucidate the choices of variants that are closest to the authentic text. The materials for this study include Lermontov's rough autograph, a manuscript of the poem belonging to Yu. F. Samarin, the first publication of the poem in the 1843 almanac “Morning Dawn,” the edition of Lermontov’s works edited by P. A. Efremov, and scholarly editions from the 20th and 21st centuries. A comprehensive set of scientific methods and approaches has been employed to address the research question: source study methodology, textual criticism, logical-semantic analysis, and comparative analysis of the work, allowing for a connection between the history of the text and its interpretation. The comparison of the draft, manuscript, first, and subsequent publications of the poem revealed discrepancies related to noncompliance with the author’s punctuation, substitutions of certain words, including toponyms, omissions of phrases present in the draft, and inaccurate reproductions of the author’s variants. The necessity of liberating the text from editorial corrections that distort the semantic accents of Lermontov’s poem is argued.
Plot-Motivational Parallels in Heroic Epics of Yakuts, Karachays, and Balkars: Trials of Epic Hero
Authors: Makarov S. S.
Published: September 2024

This article explores the plot and motivational parallels present in the heroic epics of the Karachay-Balkar and Yakut traditions. It focuses on a central theme that is vital to the genre: the trials faced by the epic hero. The primary aim of this study is to investigate the unique features of overlapping plot motifs within these two Turkic narrative traditions, thereby illuminating their thematic and poetic characteristics. The research draws on a representative corpus of heroic epic recordings from the Yakuts, Karachays, and Balkars, collected throughout the 19th and 20th centuries, as well as narratives from other Turkic and Mongolicspeaking communities. Despite the significant geographical and temporal distances between these traditions, the analysis reveals a noteworthy number of coinciding plot situations and motifs. This study delves into the nuances of their representation and variation, tracing potential folkloric connections and origins. Particular attention is given to specific plots, such as “shooting at a distant celestial object,” “the hero’s temptation by a group of antagonists,” and “the stone that crumbles beneath the feet of the true hero.” The textual analysis concludes that there is a remarkable similarity in the concept of the epic hero across these traditions, alongside a rich variety of plots and motifs that likely trace back to a common source in Central Asia.
German and Austro-Hungarian Armies in Perception of Russian Officer Corps in 1870s and 1880s
Authors: Arbekov A. B.
Published: September 2024

This article examines the views that emerged among the Russian officer corps during the 1870s and 1880s regarding the German and Austro-Hungarian armies. The aim of the study is to illuminate the process of shaping these perceptions, trace their historical dynamics, and identify the factors influencing the transformation of Russian officers’ views during this period. Investigating this topic contributes to a deeper understanding of Russian foreign and military policy in the 1870s and 1880s, a time when a specific balance of power was taking shape in Europe and the outlines of military-political alliances that defined the nature of bloc opposition during World War I began to emerge. The study focuses primarily on the perspectives of the General Staff officer corps, as their responsibilities included the systematic study of foreign armies and the application of this knowledge for Russian military needs. Based on the conducted research, it is concluded that between the 1870s and 1880s, the attitude of the Russian officer corps towards the German army underwent changes that aligned with a sequence of “adversary” — “competitor” — “enemy,” while the Austro-Hungarian army was perceived as Russia’s key “competitor” in the Balkans.
Regions of Italy in Context of Italian-Chinese Relations in 21st Century
Authors: Nesterov A. G. , Muslimova E. O.
Published: September 2024

This study examines the development of transregional relations between the regions of Italy and those of China, including the Special Administrative Regions of Hong Kong and Macau. It highlights the interplay between centrifugal and centripetal tendencies within the framework of Italy’s ‘center — regions’ relationship system. The analysis provides insights into the normative foundations of international and foreign policy activities of Italy’s territorial communities, grounded in the national Constitution and relevant legislation. The findings demonstrate that Italian regions possess very limited capabilities for independent foreign and economic policy initiatives, a restriction stemming from the Italian Constitution, which permits regional cooperation only in the realms of economy and culture. In contrast, among the regions of China, only Hong Kong and Macau exhibit the capacity for autonomous external activities. Furthermore, it is revealed that Chinese migrants in Italy play a significant role in fostering Italian-Chinese interregional ties, maintaining connections with their homeland. The study concludes that Italian regions are notably less active internationally compared to regions in other EU countries.
Mountain Jewish Community of Kabardino-Balkaria from 1944 to 1965
Authors: Tatarov A. A.
Published: September 2024

This article addresses the issue of state-religious relations through the lens of the registered religious community of Mountain Jews in the city of Nalchik, Kabardino-Balkaria. The selected period from 1944 to 1965 encompasses the operations of the Council for Religious Affairs and its regional representation. The aim of this study is to identify state policies regarding the Mountain Jewish believers based on archival documents and thematic analysis. The research reveals that from the early 1950s, bureaucratic pressure on the religious community intensified within a multi-tiered system of control. Protocols, cash receipts, and reports obtained from the Mountain Jewish community served as an informational basis for the regional representative of the Council for Religious Affairs when preparing documents for the central authority. The closure of the synagogue, restrictions on cooperation in preparing believers for holidays, and various bureaucratic maneuvers did not yield the desired results for the authorities. Despite the official closure of the synagogue in 1951, religious holidays resonated widely among believers beyond the registered group and official mandates. In the context of financial flows and material concerns, Mountain Jewish believers found ways to circumvent the constraints imposed by the state.
Actualization of Axiolemmas in Political Discourse of Russia and China (New Year Addresses of V. V. Putin and Xi Jinping)
Authors: Melnik N. V. , Savelieva I. V. , Nikiforova E. V.
Published: September 2024

This article presents the findings of a comparative study on the values articulated in the New Year addresses of the political leaders of Russia and China. The research addresses the challenge of identifying the determinants that influence their choices within epideictic texts. An analysis of the New Year addresses delivered by Vladimir Putin and Xi Jinping from 2019 to 2023, approached from a linguo-axiological perspective, has highlighted the concepts of PEOPLE and GOVERNMENT, indicating the significance of themes related to the populace and representatives of authority in the political discourses of both countries. It is demonstrated that these congratulatory speeches actualize vital, political, national-cultural, moral-ethical, economic, and ecological concepts. Among these, the Russian President’s addresses place the greatest emphasis on the representation of moral-ethical concepts, while the Chinese leader’s addresses provide a more detailed presentation of political concepts. It has been revealed that in the speeches of the Chinese political leader, the concept of GOVERNMENT is verbalized through references to the country’s political party and through the expression of personal sentiments using the first-person singular pronoun. The results of this study have identified both objective and subjective factors that determine the selection of value dominants reflected in the New Year addresses of the political leaders of Russia and China.
National Question and Its Resolution: Semantics of Ethnic Disintegration and Integration in Russian History Textbooks of 20th-21st Centuries
Authors: Golikov L. M.
Published: September 2024

This article addresses the issue of verbalizing the semantics of ethnic disintegration (separation) and integration (unity) through terminological means. The study is based on an analysis of 40 combinations featuring the word “nation” and its derivatives, which are regularly employed in contemporary educational publications on Russian history from the 20th to the 21st century. The aim of this work is to describe the conceptual fields of ethnic disintegration or integration as represented by the terminological tools of educational historical discourse. Through a logical-semantic approach, the boundaries of the terminologies of disintegration / integration and their logical models are identified; the semantics of individual terminological units are described, including their axiological potentials. The structures of the conceptual fields represented by combinations with “nation” and its derivatives are delineated. The author concludes that the terms “national question” and “resolution of the national question” serve as foundational nominations within educational historical discourse, organizing the terminological systems of disintegration and integration. These terms are interpreted as opposing yet complementary fields that reflect the states of the nation and state in their opposition (political distancing of the nation from the state) or identification (political unity), encompassing a border zone filled with characteristics that facilitate the transition of the nation and state from one state to another.
The coloniality of gender expertise in professional environment and development contexts
Authors: Elmhirst Rebecca , Resurrección Bernadette P.
Published: September 2024

As international environmental research for development organizations and their funders continue to build a requirement to 'mainstream' gender equality into their programming, disquiet surrounding gender expertise has emerged among those who bring reflections from feminist political ecology into professional development contexts. The perspective offered here builds from our earlier exploration alongside 'gender experts' of the uneasy navigation of epistemic and practical dilemmas necessary in environmental research-for-environment and development (R4ED) settings in the Global South. We consider the deeper trouble that comes from the embedding (and shaping) of gender expertise within the colonial project of development. Earlier postcolonial feminisms have demonstrated the difficulty in dislodging a hegemonic gaze on the "Third World woman", that has aligned a particular kind of feminism with international development's "civilizing mission." We suggest that gender expertise in professional environment and development contexts may be subsumed in the neutrality and universality of Eurocentric scientific knowledge, which has the effect of marginalizing non-Western perspectives and indigenous ways of knowing. Thus, the 'technocratization' of gender expertise for managerial purposes depoliticizes and blunts the potential for achieving the goals of social justice. We show how these issues take particular form in technical settings, where knowledge hierarchies, funding models and everyday exchanges may be shaped by coloniality. We argue that this amplifies the coloniality of gender, narrowing transformative agendas to those based around individualized entrepreneurial freedom, crowding out the generative and care-full possibilities offered from a plurality of contextualized and situated ecological feminisms. We conclude by considering "openings" in gender transformative thinking and action ('praxis') as waymarks for those navigating the complex ethics and politics inherent in professional feminist political ecology, built around the enduring salience of 'gender expertise.'
Evaluating the accuracy between hollow and solid dental aligner models: a comparative study of printing technologies
Authors: Yurdakurban Ebru , Topsakal Kübra Gülnur , Duran Gökhan Serhat , Görgülü Serkan
Published: September 2024

Objective

To evaluate the accuracy between hollow and solid dental models produced using a StereoLithography Apparatus (SLA), Digital Light Processing (DLP), and PolyJet 3D printing technologies.

Materials and methods

Hollow (of 1 mm, 2 mm, 3 mm shell thicknesses) and solid maxillary models were produced using SLA, DLP, and PolyJet printers. To determine the accuracy of the tested models and deviations from the reference models, 3D digital superimposition was performed. For a detailed analysis, the dental arch was subdivided into five regions which yielded root mean square (RMS) values post-registration. Six different RMS values were generated, one for the total dental arch and one for each of the five individual regions. One-Way ANOVA analysis was applied for intergroup comparisons, and post hoc comparisons were conducted using the Tukey test. The significance of the deviation of RMS values from zero was evaluated through the one-sample t test.

Results

The PolyJet printer produced models with the least deviation for the total arch, while the SLA printer showed the greatest deviation. The DLP printer produced models with the least deviation for the hollow designs in the anterior region, while the SLA printer produced models with the least deviation of the solid design. The PolyJet printer showed the least deviation for both hollow and solid designs of 2 mm and 3 mm shell thicknesses in the molar regions. Except for the 1 mm shell thickness hollow design on the right side, the PolyJet printer showed the highest accuracy in the premolar-canine regions.

Conclusion

Accuracy varies in the posterior and anterior regions of the dental arch as a result of different shell thicknesses produced by 3D printing technologies. The clinician should select a design that is appropriate for the intended 3D printing technology based on use and required accuracy.
Corrigendum to: Structural and Thermodynamic Properties of Cu2ZnSnS4 Material: Theoretical Prediction (AWUTP, 65 (2023) 160-170, DOI: 10.2478/AWUTP-2023-0012)
Authors: Boutahar L. , Benamrani A. , Rouabah Z. , Daoud S.
Published: September 2024

We would like to correct some inaccuracies in our previous paper “STRUCTURAL AND THERMODYNAMIC PROPERTIES OF Cu2ZnSnS4 MATERIAL: THEORETICAL PREDICTION”, Annals of West University of Timisoara-Physics, 65 (2023) 160-170. https://doi.org/10.2478/awutp-2023-0012 During the analysis of the data we forget to divide by N (N = 2 is the number of formula units per cell) to transform the unities from Ry/cell/K to J.mol-1.K-1, and from Ry/cell to kJ/mol, respectively. So with consequence, we found that some of our data of the thermodynamic properties are muliplied by 2. In addition, we rectified the unity from kJ N-1mol-1 to kJ/mol.
Examining the Relationship Between Mobile Cellular Subscriptions and Inclusive Growth: SADC Members
Authors: Ratombo Ndivhuho Eunice , Mongale Itumeleng Pleasure
Published: September 2024

Inclusive growth had faced global challenges in social and gender disparities issues, especially in the Southern African Development Community (SADC) region, which affects its administrations and distributions in modern development contexts. Recognised international institutions have used the term inclusive growth as a description of growth that is formed through labor force and distributions focusing on well-being. This study examines the relationship between mobile cellular subscriptions and inclusive growth to improve the standard of living using a panel autoregressive distributed lag (ARDL) approach from 2000 to 2020. The economic growth context studies applied were unable to capture the demand for improving welfare and expectations to lessen poverty, while promoting inclusivity for SADC. Moreover, SADC economic growth partially dealt with the inclusive growth challenges of network connectivity, poor household benefit sharing, and a fast-growing population by applying non-validated methods that were useful to measure economic growth but fail to respond to inclusive growth. The World Bank (WB) and International Telecommunication Union (ITU) databases were used to identify that there is a positive and statistically significant relationship between mobile cellular subscriptions and inclusive growth in the long run. The findings of this study contribute by clarifying and urging policymakers and researchers concerned about equitable economic development to incorporate this sufficient to the relevant upbringing of communication channels to embrace inclusive growth opportunities to expand inclusive growth rapport and channels.
How Real-Time Interactivity Influences Impulse Buying Behaviour in Generation Z’s During Live Streaming Shopping: The Mediating Role of Perceived Enjoyment
Authors: Indriastuti Herning , Hidayati Tetra , Asnawati  , Martiyanti Dwi , Ayu Astried Rusty Febri , Putit Lennora
Published: September 2024

Live streaming is a new experience for customers to make online purchases because it is real-time, this has led to a surge in live shopping in e-commerce. The purpose of this study investigates the impulsive shopping behavior of Generation Z during live streaming, which is influenced by real-time interaction variables and bridged by stimulus, cognitive and emotional pleasure. The research method used a purposive sampling technique to collect 119 participants through an online survey. Data analysis was carried out using Smart-PLS software. The test results in this study state that real-time interactivity has a positive and significant effect on perceived enjoyment felt by consumers when watching live streaming shopping and perceived enjoyment has a positive - significant effect on consumer impulse buying behavior when live streaming. The indirect finding of the perceived enjoyment variable can bridge the gap in the relationship between real-time interactivity and impulse buying behavior. The contribution of this research provides an understanding of the impulsive buying behavior of the live-streaming shopping domain by increasing the interesting interaction through Stimulus Organism Response Theory. Business implications could focus on improving the quality of real-time interactions and promoting limited-time live-streaming intent using live streaming e-commerce platforms.
Ethnic and National Identity in Russian Research: A Scoping Review
Authors: Ostroglazova N. А. , Starostina N. V.
Published: September 2024

This scoping review aims to provide a comprehensive overview of the contemporary studies regarding ethnic and national identities written in the Russian language. The study reveals major contexts and patterns of the operationalization of the concepts. The scoping review is based on the framework outlined by Arksey and O’Malley, with qualitative content analysis as its primary method. Samples from 114 papers were analyzed to find existing approaches to identity studies and conceptualization. Explicit and implicit identity definitions and identity attributes were mapped and coded. The research found that scholars tend to provide original definitions and relate identity to consciousness. Implying the idea of a person’s uniqueness, identity is often regarded as rooted in memory, hence the number of mentions of memory studies and memory politics in the reviewed articles. Another finding is that multiple and/or complex identities are widely investigated, and these identity types are given original names, mostly compound. With a great number of identity types, there is still a common understanding of identity as a constructed, dynamic phenomenon. The study concludes that identity is a common value-charged notion for Russian academic discourse, with national and ethnic identities being at the heart of the ongoing studies. The paper concentrates on identities of large groups, which is viewed as a politically sensitive issue, closely intertwined with the view of identity as a factor and resource of the development of society. Main topics are politics, history, representation, dynamics, plurality, communication, cultural factors, and territory. The analysis of the identity studies contributes to professional discourse by illuminating how concepts of ethnic and national identities are operationalized and communicated in the Russian-language academic community, thus enhancing cross-cultural understanding and facilitating more effective professional communication in related fields. Given the limitations, the findings identify the main patterns of concept usage, point to research gaps, and provide a basis for future research.
Family Concept Representation in English and Chinese Media: A Cognitive Matrix Modelling Approach
Authors: Filyasova Yu. А. , Long H.
Published: September 2024

This article examines the representation of the FAMILY concept in English and Chinese newspapers. The research material was gathered from ten information sources and included 200 news articles, selected through continuous sampling using the keyword FAMILY / 家庭. The articles were analyzed to identify relevant issues and categorized based on their thematic content. In each article, key content elements—words and phrases that carry significant semantic meaning—were identified and used for cognitive matrix modeling. The findings reveal cognitive asymmetry in how the FAMILY concept is portrayed in English and Chinese media. In English-language media, the concept is centered on fundamental semantic components that form the cognitive core of the FAMILY concept, such as family members and their relationships. The representation also extends to areas like family activities, children, finances, employment, family pets, and legal issues. In contrast, Chinese media emphasizes the government’s role in educating the younger generation on family behavior, fostering a new generation of families that adhere to the country’s ethical norms, traditional cultural values, and moral standards. The central aspect of the FAMILY concept in Chinese media is the significant governmental support and societal focus on family needs and moral education, with family being viewed within the broader context of societal relations. The observed asymmetry is attributed to cultural, economic, social, and political differences. In capital-oriented social systems, the family is seen as an independent unit capable of self-sufficiency without substantial government intervention. This study is particularly relevant for understanding the role of professional discourse in shaping public perceptions of family across different cultures, highlighting how media narratives reflect and influence broader societal values and professional communication practices.
Using Point of Care Ultrasound in Diagnosing Pneumoperitoneum: a case report
Authors: Althagafi Maram , Alqarni Najeeb , Altirkistani Bsaim
Published: September 2024

Background: Gastrointestinal perforation with subsequent pneumoperitoneum is a life-threatening surgical emergency, has a high risk of morbidity and mortality, and requires prompt diagnosis and treatment. 

Case presentation: A four-year-old boy known case of lymphocele, tethered spinal cord syndrome, neurogenic bladder, and vesicoureteral reflux grade 3 was brought to the emergency department with a history of on and off periumbilical abdominal pain for 15 days, centralized in position, without radiation to other sites of abdomen, the pain became progressively severe in nature and intensity in the last three days. Point of care ultrasound was performed while waiting for the abdomen x-ray. The right upper quadrant of the abdomen was assessed using the curvilinear probe in the longitudinal view, which showed sonographic evidence of pneumoperitoneum, enhanced peritoneal stripe signs EPSS associated with posterior reverberation artifacts.

Conclusion: Understanding the fundamentals of abdominal ultrasound examination will give emergency physicians another diagnostic tool to identify life-threatening cases of acute pneumoperitoneum promptly.
Food protein-induced enterocolitis syndrome in an infant presenting with methemoglobinemia: A case report
Authors: Alareefy Abdulaziz , Hushan Hessah , Alsaedi Adel
Published: September 2024

Background: Methemoglobinemia is a condition in which the iron in hemoglobin is oxidized from the ferrous to ferric state, resulting in oxygen desaturation and cyanosis. It can be congenital or acquired, with acquired causes including the ingestion of certain medications or chemical products or infections such as sepsis or gastroenteritis.
Case presentation: Herein, we report the case of a young infant who presented with diarrhea and cyanosis and was found to have significant methemoglobinemia which most likely was secondary to severe diarrhea. It was managed successfully with methylene blue, he was diagnosed later as case of food protein induced enterocolitis syndrome.
Conclusion: Clinicians should consider profound diarrhea as a potential cause of methemoglobinemia to enhance early intervention.
Challenges of EFL Course Retaking: Toward a Model for Remedial Reading
Authors: Hazaea Abduljalil
Published: September 2024

Course retaking brings pivotal challenges for learning institutions all over the world. This urges many academicians to investigate the reasons why students retake courses. Therefore, this article identifies the micro and macro challenges associated with retaking a reading course. It also generates a remedial reading model for English as foreign language (EFL) contexts. Data was collected from reading course specifications, course report, and focused group discussions with six experienced language instructors at the preparatory year program of a Saudi university. Using grounded theory, the qualitative data was analyzed through thematic analysis. The findings revealed a complex web of challenges associated with different stakeholders: the course retakers, language instructors, administration, and retakers’ families; all of them share the challenge of time constraints, especially after the shift from two to three semesters. At the micro level, course retakers struggle with poor foundational skills and demotivation, focusing on passing exams. They also lack exposure to English and seldom invest office hours for help. Language instructors struggle with learning materials, demotivation, and assessment. At the macro level, students’ families contribute to maximize these challenges. A gap exists between the intended learning outcomes and student levels and admission criteria. These challenges collectively hinder course retakers’ reading skills. The study generates a five-pillar bridging model that integrates learning outcomes, exam-oriented teaching strategies, simplified reading materials, technology-assisted reading, and motivational strategies to foster EFL remedial reading. The study recommends some pedagogical implications for remedial reading classes.
Drag and Thermal Reduction of Spiked Hypersonic Vehicle in Thermochemical Nonequilibrium
Authors: Wang Runxiang , Zhang Sicheng , Liu Xiaobo , Ding Dongming , Zhang Bin
Published: September 2024

This study utilizes the in-house parallel direct simulation Monte Carlo–quantum dynamics method to model the aerodynamic flowfield of a spiked reentry vehicle within a rarefied high-altitude atmosphere. Investigating the flight of spiked aircraft under various flight conditions and spike sizes and considering both the real gas effect and the rarefied gas effect, the aerodynamic characteristic of the aircraft is evaluated. Performance evaluation for effectiveness in drag reduction and thermal protection is based on drag and the maximum stagnation heat flux coefficient at the vehicle’s shoulder. Findings indicate that, in the rarefied atmosphere, the distinction between the characteristic shock intensities of spiked and unspiked vehicles is not pronounced, which results in a drag reduction of approximately 5%, accompanied by a more than 100% increase in thermal effect on the vehicle’s shoulder, obviously poor in effectiveness. Subsequently, this study examines the spiked vehicle equipped with a lateral jet, and this augmented approach achieves a marked reduction in the intensity of the shock wave impacting the vehicle’s shoulder with a drag reduction exceeding 10% and attenuates the thermal impact by over 50% in comparison to the implementation of spiking alone, thereby demonstrating superior performance in terms of effectiveness.
Low-Energy Endgame Trajectory Design for Callisto Orbiter
Authors: Zhang Yu , Yang Hongwei , Li Shuang
Published: September 2024

Callisto is a promising target for future Jovian system exploration due to its high scientific value and low-radiation environment. This paper proposes a new low-energy endgame that can achieve a low-[Formula: see text] transfer with short flight times for Callisto orbiting and landing missions. In contrast to the endgames designed for other Galilean moons, the proposed Callisto endgame would perform interior transfers from Ganymede in the low-energy region rather than exterior transfers. The definition and analysis of the Callisto endgame are completed using the Tisserand–Poincaré graph. Tisserand-leveraging transfers and isolating blocks techniques are used to search for different trajectory arcs in the endgame. The developed trajectory solver is able to find an optimal complete endgame trajectory with constraints on the initial state and the orbit around Callisto. In the designed scenarios, the spacecraft can complete the transfer from the Ganymede resonance orbit to the polar science orbit around Callisto with a minimum [Formula: see text] of [Formula: see text] and a transfer time of about 140 days, which is a significant improvement compared to the high-energy endgame.
Numerical Study on the Unsteady Behavior of the Solid-Fuel Scramjet
Authors: de Carvalho Diogo José Rodrigues Garrido , Chaves Pereira José Manuel , Pereira José Carlos Fernandes
Published: September 2024

The unsteady evolution of the flowfield in a solid-fuel scramjet is investigated. The researchers approximate the continuous working of the solid-fuel scramjet via stand-alone geometries. These directly correspond to the actual shapes of the combustor recorded during experimental tests of the engine. The flow is modeled using the compressible Navier–Stokes and species transport equations and the shear stress transport [Formula: see text] turbulence model. A two-dimensional axisymmetric formulation is employed. The fuel is the polymer polymethyl methacrylate. The integral parameters of the combustor are computed in the simulations using nonvarying geometries at discrete instants. These values are then compared with measurements taken at the same instant during the continuous working of the engine in experimental tests. The good agreement during the whole process demonstrates the permanent quasi-steadiness nature of the fluid flow in relation to the varying combustor shape. The discussion analyzes the evolution of critical combustor parameters, including thrust, fuel regression rate, and various efficiencies, and correlates them with the underlying flow variables. The findings provide valuable insights into the unsteady development of the flow physics within the combustor of a solid-fuel scramjet, contributing to a better understanding of this complex system.
Mutation Operator for Resonance Flybys in Moon Tour Design Optimization
Authors: Ellithy Ahmed , Englander Jacob , Abdelkhalik Ossama
Published: September 2024

The global optimization of the moon tour design problem is addressed in this paper. These missions are usually designed using graphical methods or grid search, which require simplifying assumptions, and a skillful mission designer. The grid search methods are computationally intense. Trajectories with a high number of flybys and multiple resonance flybys are usually hard to optimize, especially with small-size/short-period flyby moons. This work proposes a new mutation operator that is incorporated with the Monotonic Basin Hopping in the Evolutionary Mission Trajectory Generator tool; this mutation operator increases the exploration of resonance flybys to improve convergence in moon tour design optimization problems. In this work, the Hidden Genes Genetic Algorithm is used to optimize the undetermined number of moon flybys. A Europa Clipper-like mission is optimized assuming two-body dynamics, and a validation study for the proposed resonance mutation operator is presented. The results include an optimized baseline solution and a new solution with a different sequence of flybys with a different sequence of flybys for the Europa Clipper-like mission, in addition to an optimized moon tour in the Saturnian system.