Search Results (3,221)

Drawing on the Seeking Proxies for Internal States (SPIS) model and the concept of Difficulties in Accessing Internal States (DAIS), the present study examined the statistical associations among self-esteem, DAIS, body-checking, and disordered eating patterns (DEP). Within the SPIS framework, self-esteem is conceptualized as an evaluative internal state that may be appraised through externally observable proxies, such as body appearance. Cross-sectional data were collected from 200 adults recruited through Prolific Academic. Hayes’ PROCESS macro was used to test simple and serial mediation models examining whether DAIS and body-checking statistically account for associations between state self-esteem and DEP. Lower self-esteem was associated with higher DEP. Both DAIS and body-checking statistically accounted for portions of this association in simple mediation models. In a serial mediation model, the fully sequential pathway (self-esteem → DAIS → body-checking → DEP) remained statistically significant after accounting for shared variance among mediators. Given the cross-sectional design, these findings cannot establish temporal or causal relationships, but the observed pattern of associations is compatible with the proposed conceptual process. Additionally, our findings are based on a nonclinical sample and reflect variability in subclinical eating pathology. Implications for extending the SPIS framework to dimensional eating-related phenomena are discussed. Full article

Underground mining environments are complex and hazardous operations where emergencies continue to happen. Underground mine emergencies require rapid, high-stakes decision-making under conditions of uncertainty, stress, and limited visibility. Conventional mine emergency training largely relies on instruction-based approaches which provide insufficient exposure to the cognitive and behavioral demands of real underground emergency situations. There has been an identified need to train miners for knowledge, skills, abilities, and other characteristics (KSAOs). This study proposes an Adaptive Immersive Training Framework (AITF), a cognitively grounded architecture that integrates cognitive task analysis (CTA), KSAOs, and situational awareness assessment for miner self-escape training and readiness. The AITF aligns NIOSH-identified self-escape competencies with immersive training scenarios designed to assess and develop cognitive readiness and decision-making. CTA of historical mine accidents is introduced as a foundational design method for translating accident investigation findings into simulation scenarios and performance metrics. A CTA of 2006 Darby Mine No. 1 explosion is presented as a proof of concept. The proposed framework supports individualized assessment, iterative scenario refinement, and data-driven feedback. The AITF advances miner training toward cognitive preparedness during mine emergencies and provides a foundation for future training systems that leverage digital tools, digital twins, and artificial intelligence for the mines of the future. Full article

Despite consensus in the mathematics education literature regarding the mutually dependent components of math proficiency, as well as the importance of their development, most elementary-aged students in the United States demonstrate a lack of proficiency in math according to national assessment data. Whole number knowledge, which includes skills in computation and word-problem solving, is understood to be a critical foundation for the development of later math skills. This study used a multiple-baseline experimental design to evaluate the impacts of an evidence-based mathematics intervention, Accelerating Mathematics Performance with Practice Strategies (AMPPS), on third- through fifth-grade students’ skills with complex computation, as well as on their word-problem-solving performance. Furthermore, we evaluated effects on students’ math self-concept. Five students identified to have difficulties in math received AMPPS in a one-on-one, in-person format. The results of the study were mixed. For example, when using visual analyses as our primary analytic method, these analyses did not show robust intervention effects on students’ computation skills but did show at least some improvement for most students’ word-problem-solving skills. Additionally, supplemental analyses comparing student growth to national and school-based norms suggested that all participants seemed to benefit from the intervention, but these analyses were not intended to examine experimental causality. Despite study limitations and a lower than optimal number of AMPPS sessions (dosage) provided to students, the present study offers several directions for future research, as well as possible implications for practitioners regarding intervention selection, intensity, and evaluation. The findings will also be discussed in the context of conducting systematic replication studies, which are essential for understanding the generality of a given phenomenon (e.g., an effect of a school-based intervention) across a wide range of situations and conditions. Full article

Procrastination is commonly conceptualized as a maladaptive self-regulatory failure associated with impaired performance and reduced control over task execution. However, recent research suggests that procrastination may also assume a functional form, referred to as active procrastination, characterized by intentional delay combined with preserved control and effectiveness. The present study aimed to examine the relationship between the level of procrastination and perceived control over academic tasks among psychology students, as well as to explore differences according to gender, study level, and mode of study. A quantitative cross-sectional pilot study was conducted using an online self-report survey administered to 300 psychology students aged 18–30 years from universities in southern Poland. An author-developed questionnaire with good internal consistency (Cronbach’s α = 0.84) was used to assess procrastination behaviors, perceived task control, and self-reported academic functioning. The results indicated a high prevalence of procrastination behaviors alongside high levels of declared task control, timely task completion, and satisfaction with task quality. Women reported significantly lower levels of procrastination than men, while no significant differences were observed with respect to study level or mode. The findings support the existence of a functional paradox of procrastination and provide evidence consistent with the concept of active procrastination, suggesting that perceived control may buffer the negative consequences of delaying academic tasks. Full article

The potential accessibility has been widely represented in the scientific literature since the 1950s and in the work of Hansen. Until today, different sets of measures have been developed for evaluating it in different scientific areas such as transport infrastructure, land use planning, regional development, and others. In the Serbian scientific literature, this concept received limited attention, so this paper represents a new contribution to the field of managing territorial development within spatial planning. The main aim of this research is to view the sustainable territorial development of the Republic of Serbia from a new perspective, which combines demographic and socioeconomic indicators with infrastructure development. Considering that, the potential accessibility to the population of local self-government centers index was calculated at the settlement level. This approach corresponds with demographic and economic trends in Serbia that are present in recent decades and some newer analyses in the scientific and professional literature regarding processes within the Serbian urban system. Findings from this research can make a significant contribution to further understanding of Serbian urban system patterns and sustainable territorial development. Full article

This article analyses the Museo de los Desplazados (Museum of the Displaced), a collaborative platform conceived by the Left Hand Rotation collective to foster shared reflection on gentrification processes. This project takes the form of a collective and decentralised digital archive, functioning as an open, ‘in-process’ collaborative tool. Within the context of the proliferation of self-organised digital archives, this study explores how the Museum acts as a dynamic social object that articulates dispersed narratives. Drawing on Derrida’s concept of the ‘anarchive’, the research validates the hypothesis that there is a direct relationship between the profiles of autonomous collectives and their specific epistemic practices. The findings reveal that activists utilise the archive as a tool for legal defence, ‘heat-of-the-moment’ ethnography, and networking, thereby resisting ‘archival violence’ and constructing collective counter-memory. Ultimately, the Museum demonstrates that memory is not a guarded site, but a living network built through horizontal and rhizomatic collaboration. Full article

This study investigates civic identity among young people in Latvia within a multidimensional framework that includes subjective, ethical, and political aspects. The empirical research is based on a survey of 9th–12th grade students enrolled in general education schools in a selected city, including schools where instruction is in the state language and schools where instruction is in a minority language. The questionnaire, rooted in a multidimensional concept of civic identity, measured subjective, ethical, and political dimensions through categorical items and a four-point Likert scale. Chi-square tests showed significant differences between school types across various dimensions of civic identity. Self-identification as a Latvian patriot and respect for the country differed significantly across all grades, with moderate to large effects. Perceived personal relevance to the country also varied significantly in some grades, with the strongest differences seen in grade 10. Willingness to defend the country had significant links to school type, especially in upper secondary grades. These findings highlight the variety of civic self-perceptions in a linguistically diverse educational setting and emphasise the importance of schools as spaces where civic identity is expressed and negotiated. The results add to debates in civic education and may help develop competency-based teaching methods suitable for diverse cultural contexts. Full article

Oral squamous cell carcinoma (OSCC) represents a major global health burden and remains one of the most prevalent and aggressive malignancies of the head and neck region. Despite significant advances in surgical techniques, chemotherapy, and radiotherapy, patient outcomes have improved only modestly over recent decades. The high recurrence rate, metastatic potential, and resistance to therapy underscore the complexity of OSCC biology and the limitations of conventional treatment approaches. In recent years, the concept of cancer stem cells (CSCs) has reshaped the understanding of tumor initiation, progression, and therapeutic failure in OSCC. These cells, characterized by self-renewal capacity and phenotypic plasticity, are believed to sustain tumor growth, drive recurrence, and mediate resistance to therapy. Parallel to this, insights into epigenetic regulation, including DNA methylation, histone modifications, and non-coding RNAs, have revealed new layers of molecular heterogeneity and adaptability in oral carcinogenesis. The integration of CSC biology with epigenetic modulation offers a promising foundation for the development of targeted and personalized therapeutic strategies. Novel approaches aim to eradicate CSCs, induce their differentiation, or reprogram their malignant phenotype through the use of epigenetic inhibitors and molecular modulators. This review summarizes current knowledge on the molecular and cellular mechanisms driving OSCC pathogenesis, highlights the emerging role of CSCs and epigenetic regulators, and discusses the challenges and perspectives of translating these findings into effective clinical therapies. Full article

The electricity supply system faces major challenges. The physical and social vulnerability of the monoculture of hierarchical, centralized systems urgently requires radical transformation of their organizational structures as well as their infrastructures. These transformations to low carbon are often characterized as ‘decentralization’. However, decentralization is a process that only signifies a move away from centralized models. This does not necessarily result in a decentralized architecture, but rather a model in which the dominance of ‘commercial private’ combined with ‘monopolistic public’ is replaced by cooperation and community. The research question is: what will be the design of future electricity grids after the transformation? The integration of distributed renewable resources and the growing need for resilience requires great diversity and flexibility from socio-technical smart grids. These involve digitization, enabling the transformation of power grids into networks of clustered, self-healing microgrids with distributed energy systems: generation, storage, transmission, demand response, and internal energy management. Several fundamentals of Common Pool Resources theory (Ostrom) on the analysis of sustainable management of natural resources are reviewed on their relevance: the Socio-Ecological System framework, distinct property regimes, the Polycentricity concept, and the Institutional Analysis and Development (IAD) framework. The transformation leads to ‘distributed’ rather than ’decentralized’ models. Governance no longer takes place from a single control point, but from many, spread across multiple levels, similar to ecosystems. End users play a key role and become partly coproducing prosumers. Governance is polycentric rather than decentral. The IAD provides as its most important condition that, at the legislative level, there must be minimum recognition of the right of ‘renewable energy communities’ to organize themselves as microgrids. This is immediately the biggest social acceptance challenge, as the current monoculture incorporates several lock-ins: incumbent powerful actors, centralized hierarchical control legislation, and obstructive market conditions, including taxing systems. Full article

Objective: Neural tube defects remain a significant global health concern. This pilot study assessed folic acid (FA) knowledge and supplementation practices among pregnant women in Ukraine. Methods: A cross-sectional survey was conducted among 95 pregnant women who completed a 22-item self-administered questionnaire assessing FA awareness and socio-demographic characteristics. Results: Although 76.8% of participants reported planned pregnancies, only 25.3% used FA before conception, while 80.0% initiated supplementation after pregnancy recognition (p < 0.05). In bivariate logistic regression analysis, preconception counseling (OR = 7.7, 95% CI: 2.37–24.85), planned pregnancy (OR = 9.7, 95% CI: 1.22–76.25), previous FA supplementation (OR = 3.11, 95% CI: 1.20–8.33), and increasing maternal age (OR = 1.09 per year, 95% CI: 1.00–1.19) were significantly associated with preconception FA use. Sociodemographic factors were not significant predictors. For FA use during pregnancy, only previous supplementation remained significant (OR = 4.10, 95% CI: 1.10–14.29). Awareness of recommended FA use before (35.8%) and during pregnancy (48.4%) and knowledge of neural tube defect prevention (20.0%) were low and not associated with supplementation behavior. Conclusions: A substantial gap exists between recommended and actual FA use, particularly before conception. Strengthening preconception counseling may improve timely supplementation. Full article

The expansion of Internet-of-Things deployments at the network edge challenges service continuity, as single points of failure can interrupt critical data-processing pipelines. This paper introduces the Operational Digital Twin (ODT) —a live, state-synchronized standby system designed for node-level failover in resource-constrained edge environments. In contrast to Digital Twins designed for modeling and analysis, an ODT is designed for operational continuity, standing ready to assume control when the primary node fails. We instantiate this concept through a self-configuring, high-availability architecture that implements the ODT for node-level redundancy. To ground this new conceptual category empirically, we define and validate four measurable criteria for ODT fidelity—state fidelity, synchronization timeliness, behavioral mirroring, and failover validation—establishing a framework that extends beyond passive replication. The design adopts a primary–secondary model with automated node discovery, configuration mirroring, and Virtual IP-based failover. Fault-injection experiments demonstrate low failover latency, prompt service restoration, limited message loss during transitions, and minimal resource overhead. These findings demonstrate that the proposed Operational Digital Twin mechanism reduces single points of failure and provides a lightweight, cost-efficient approach to sustaining reliable data processing in distributed edge environments. Full article

Fog computing extends cloud services to the network edge to support low-latency IoT applications. However, since fog environments are distributed and resource-constrained, intrusion detection systems must be adapted to defend against cyberattacks while keeping computation and communication overhead minimal. This systematic review presents research on intrusion detection systems (IDSs) for fog computing and synthesizes advances and research gaps. The study was guided by the “Preferred-Reporting-Items for-Systematic-Reviews-and-Meta-Analyses” (PRISMA) framework. Scopus and Web of Science were searched in the title field using TITLE/TI = (“intrusion detection” AND “fog computing”) for 2021–2025. The inclusion criteria were (i) 2021–2025 publications, (ii) journal or conference papers, (iii) English language, and (iv) open access availability; duplicates were removed programmatically using a DOI-first key with a title, year, and author alternative. The search identified 8560 records, of which 4905 were unique and included for qualitative grouping and bibliometric synthesis. Metadata (year, venue, authors, affiliations, keywords, and citations) were extracted and analyzed in Python to compute trends and collaboration. Intrusion detection systems in fog networks were categorized into traditional/signature-based, machine learning, deep learning, and hybrid/ensemble. Hybrid and DL approaches reported accuracy ranging from 95 to 99% on benchmark datasets (such as NSL-KDD, UNSW-NB15, CIC-IDS2017, KDD99, BoT-IoT). Notable bottlenecks included computational load relative to real-time latency on resource-constrained nodes, elevated false-positive rates for anomaly detection under concept drift, limited generalization to unseen attacks, privacy risks from centralizing data, and limited real-world validation. Bibliometric analyses highlighted the field’s concentration in fast-turnaround, open-access journals such as IEEE Access and Sensors, as well as a small number of highly collaborative author clusters, alongside dominant terms such as “learning,” “federated,” “ensemble,” “lightweight,” and “explainability.” Emerging directions include federated and distributed training to preserve privacy, as well as online/continual learning adaptation. Future work should consist of real-world evaluation of fog networks, ultra-lightweight yet adaptive hybrid IDS, self-learning, and secure cooperative frameworks. These insights help researchers select appropriate IDS models for fog networks. Full article

This study investigates gender differences in conceptual understanding, confidence, and calibration among 369 Turkish university students completing the Force Concept Inventory (FCI). Using accuracy scores, confidence ratings, and bias indices as complementary measures, we examined how male and female students differed in both their conceptual reasoning and their self-evaluative judgments. The results show that male students achieved significantly higher accuracy scores than female students (M = 56.79 vs. 49.96), though the effect size was small, indicating modest conceptual differences. Confidence differences were more pronounced: male students reported substantially higher confidence (M = 68.17) than female students (M = 54.44), representing a moderate effect. Bias scores further revealed that male students exhibited greater overconfidence (M = 11.38), while female students were more likely to underestimate their performance (M = 4.47). Item-level analyses showed that gender differences were concentrated in well-documented areas of conceptual difficulty, including Newton’s first law and gravitation. These patterns align with international findings and suggest that gender differences in physics arise from a combination of conceptual challenges and metacognitive tendencies rather than large performance disparities. The findings highlight the importance of integrating confidence calibration, reflective metacognitive practices, and targeted conceptual support into introductory physics instruction to reduce gender-based differences in learning outcomes. Full article

Schools are increasingly shaped by societal change and growing cultural diversity, calling for refined approaches to understanding the acculturation of minoritized students. This study examined acculturation profiles among minoritized primary students (n = 736) in Switzerland, applying a tridimensional framework that incorporates a multicultural orientation, beyond heritage and majority orientation. Using a three-stage latent profile analysis, four distinct acculturation profiles emerged: Multiculturalists (33.3%), Heritage-oriented Multiculturalists (29.9%), Majority-oriented Multiculturalists (29.2%), and a smaller group of Assimilationists (7.6%). The number of parents born abroad, religious practice, Swiss citizenship, and socioeconomic status predicted students’ profile membership. Comparisons of academic self-concept showed that only Majority-oriented Multiculturalists differed from the other profiles. Our findings suggest that a high multicultural orientation may support students’ academic self-concept mainly when paired exclusively with a strong majority orientation. In contrast, our results demonstrate that a strong heritage orientation may be less favorably related to academic self-concept, even when paired with a high multicultural orientation. However, given the cross-sectional design, the results call for further longitudinal research. Nonetheless, the results of this study indicate a necessity for more differentiated acculturation frameworks that consider the multidimensionality of acculturation in contemporary culturally diverse classrooms. Full article

Introduction: Despite the growing emphasis on inclusion, evidence on the longitudinal effects of consecutive training pathways in physical activity remains limited, particularly within initial university-level education. Objective: To assess the impact of a consecutive inclusive physical activity training pathway on the academic and professional development of Physical Activity and Sport Sciences students, focusing on academic self-concept, perceptions of educational inclusion, and evaluations of theoretical and practical training. Method: A longitudinal, quantitative repeated-measures design was employed across one full academic year. University students responded to questionnaires at three time points (R1, R2, and R3), corresponding to key phases of the training pathway. Within-subject analyses were conducted to examine changes over time throughout the complete course sequence. Results: Significant reductions were observed in academic self-concept, perceived academic performance, and academic self-efficacy across the training pathway. Concurrently, significant improvements were found in key dimensions of inclusive practice, particularly in methodology, supports, and community participation, whereas the conception of diversity remained stable. Perceived adequacy of theoretical training increased progressively over time, while perceived adequacy of practical training improved following the first course and subsequently stabilized. Conclusions: The training pathway positively influences students’ preparedness for inclusive education. However, the findings suggest the need to strengthen structured practical experiences that facilitate the transfer of learning to professional practice. Full article