Search Results (432)

Anthropic’s April 2026 Claude Mythos Preview release established a new operational threat category: frontier AI systems whose extended-context reasoning, recursive self-correction, native system-tool integration, and agentic scaffolding render dominant AI safety paradigms—RLHF, output filtering, contractual access vetting, human-in-the-loop supervision—insufficient as sole controls. This paper develops a defense-in-depth reference architecture against that category, structured around four named contributions: a five-indicator operational definition of the Mythos-class (capability conjoined with scaffold, access pattern, autonomy depth, and persistence); the Mythos-Class Posture Rubric (MCPR), a three-tier detection framework spanning evaluation, deployment, and runtime with explicit routing to mitigation layers; a four-layer mitigation stack comprising the Vetted-Access Operational Pattern (VAOP), Authority-Bound Output Release (ABOR) cryptographically grounded in FIPS 203/204/205 post-quantum primitives, and the Compute-Plane Isolation Profile (CPIP); and an integrated architecture that crosswalks to the NIST AI Risk Management Framework, NIST Cybersecurity Framework 2.0, and CISA Zero Trust Maturity Model 2.0. The architecture is applied to three deployment surfaces—post-quantum cryptography migration, federal AI supply-chain assurance, and critical-infrastructure operational technology defense—demonstrating that the four contributions generalize across heterogeneous operational contexts. The contribution is a reference design rather than a deployed system; limitations, falsifiability criteria, and a research agenda for empirical refinement are developed. Full article

This study highlights the strong ability of a new bacterial strain, Hafnia paralvei UUNT_MP29, isolated from the gastrointestinal tract (GIT) of common carp (Cyprinus carpio), to break down polystyrene (PS). As an omnivorous bottom feeder, C. carpio is constantly exposed to microplastics, creating a unique environment that favors the evolution of specialized microbiota capable of degrading polymers. Genomic analysis of the isolate identified key homologs involved in xenobiotic breakdown, including alcohol dehydrogenase (Adh), 3-hydroxybutyrate dehydrogenase (HDH), and a small glutamine-rich tetratricopeptide repeat-containing protein (SGTA), showing a strong metabolic system for processing long-chain hydrocarbons. Growth experiments showed the strain quickly adapted, reaching maximum cell density and forming mature biofilms by Day 16. Gravimetric analysis confirmed that H. paralvei UUNT_MP29 uses PS as its primary carbon source, with a significant weight loss of 16.76% over 16 days. Kinetic modeling indicated the degradation follows first-order kinetics (R² = 0.9243) with a high degradation rate constant (k) of 0.2078 day⁻¹. Surface analyses using FTIR and SEM confirmed extensive oxidative changes, as evidenced by the rising Carbonyl Index and surface erosion. TGA also showed reduced thermal stability of the treated polymer, suggesting microbial chain scission. These findings demonstrate the strong degradative ability of H. paralvei UUNT_MP29 and highlight the GIT of plastic-exposed aquatic animals as a promising area for discovering powerful biocatalysts for microplastic cleanup. Full article

Adopting a circular economy approach requires new business models, multi-stakeholder engagement, and tailored financial models and mechanisms as core pillars. This paper examines the conditions needed to scale circular economy initiatives in Europe by analysing insights collected from the DECISO project and conducting a comparative analysis of 38 European projects. The study adopts a mixed methods approach that integrates an online stakeholder survey with inputs generated through participatory workshops and discussions of selected use cases. This combined approach is used to identify the main structural barriers limiting the maturity and investment readiness of circular economy projects, such as regulatory complexity, difficulties in accessing funding, and weak stakeholder dialogue mechanisms. The approach was also used for enabling factors that can support development of circular economy. Particular attention is given to the role of project development assistance, modular financing strategies, and de-risking tools, which are highlighted as crucial elements for supporting the technical and economic credibility of projects and attracting public and private investors. The article also identifies and addresses seven unresolved research gaps in the literature, including the lack of interoperable policy instruments, the absence of business models capable of integrating investor expectations, the paucity of integrated methodologies for assessing technical and economic regulatory feasibility, and the need for trust-building procedures. The findings suggest that the transition to a regenerative economy requires a systemic approach based on coherent policies, de-risking financial instruments, collaborative governance, and strategic technical support throughout the project development cycle. Full article

While drones play important roles in areas such as communication and logistics delivery, they have certain limitations in emergency rescue scenarios due to their inability to carry passengers. Building on mature drone technologies such as autonomous flight and environmental perception, unmanned passenger Electric Vertical Take-off and Landing (eVTOL) aircraft are designed with a manned cabin, enabling them to operate without an onboard pilot while rapidly transporting injured people. Consequently, eVTOLs can play a significant role in emergency rescue that cargo-only drones cannot fulfill, as they are capable of rapidly reaching emergency scenes, effectively overcoming the delays caused by traditional ground traffic congestion. Despite their potential, eVTOLs still face several critical obstacles, including signal disruption, limited coverage of dispatching centers, mutual authentication among entities, and concerns related to security and privacy preservation. As a remedy, this paper presents a lightweight authentication protocol leveraging drone assistance to overcome these challenges for unmanned eVTOL emergency rescue. In scenarios where an unmanned eVTOL experiences signal blockage due to dense urban high-rise structures, neighboring drones can serve as a transmission relay to assist the unmanned eVTOL and the dispatch center (DC) in completing mutual authentication and session key negotiation, thereby enabling the unmanned eVTOL to safely complete its mission. To enhance security, physical unclonable functions (PUFs) are integrated into unmanned eVTOLs, drones, and the DC, safeguarding sensitive data against side-channel and physical capture attacks while preserving the confidentiality of unmanned eVTOL identities to mitigate privacy risks. Our protocol achieves provable security in the random oracle model while exhibiting strong resistance to various well-known attacks. Comparative analysis with the existing drone authentication and drone-assisted emergency rescue authentication protocols reveals that our protocol not only provides stronger security guarantees but also maintains a low computational overhead. Full article

The growing integration of sustainability into university curricula requires teaching models capable of addressing social and environmental complexity through interdisciplinary and human-centered approaches. In this context, this research investigates the role of Virtual Reality as a pedagogical infrastructure to support sustainability-oriented learning, with a particular focus on conditions of frailty and the role of green spaces—areas that remain under-explored in the literature. The study adopts a research-through-design and design-based research approach, developed within a university course in which students design immersive environments using Extended Reality technologies and a shared metaverse hub. The methodological framework is structured in six iterative phases and is supported by a multi-level evaluation strategy based on project criteria and maturity indicators, applied to three learning domains. The results suggest the potential of Virtual Reality as a learning environment when technological, spatial, and design dimensions are coherently integrated. They also show different degrees of integration between frailty-oriented design approaches and spatial configurations, indicating how human-centered principles can be operationalized through design choices. In addition, the findings point to the role of green elements in contributing to the perceived quality of the experience when configured as active spatial components. Overall, the study proposes a replicable framework for integrating Virtual Reality into SDG-oriented curricula, providing evidence of design integration rather than a direct measurement of learning outcomes, and contributing to the connection between pedagogical, design, and environmental dimensions in higher education. Full article

In recent decades, the introduction of e-procurement has profoundly transformed the methods of procuring goods, services, and works, redefining traditional procurement processes and significantly impacting global economic, operational, and regulatory dynamics. The construction sector has also been affected by this transition, which has altered the operating models of public procurement and favoured the adoption of digital tools aimed at more efficient, transparent, and automated process management. This study proposes a systematic literature review based on the analysis of 95 scientific contributions, with the aim of outlining the evolution of the e-procurement paradigm in the construction sector and identifying the main directions for research development. Despite the widespread dissemination of studies on the topic, it emerges that the actual maturity of e-procurement systems is still limited, often resulting in a logic of document dematerialization rather than full process digitalization. In this context, the review critically analyses the role of Building Information Modelling as an enabling factor for the evolution of e-procurement, exploring the potential of its integration into procurement flows. Particular attention is paid to the contribution of the Digital Building Logbook, an information tool capable of extending the value of data generated during the tender phase throughout the building’s entire life cycle, supporting advanced management and maintenance strategies. The results highlight how, despite the significant potential of integrating e-procurement and BIM, significant technological, regulatory, and cultural issues persist that limit its large-scale adoption. This underscores the need to develop shared and interoperable methodological approaches capable of transforming procurement from a document-based process to an integrated information system, oriented toward value creation throughout the entire life cycle of projects. Full article

To address the challenges of difficult value quantification, lack of market benchmarks, and scarcity of historical data for embedded software amidst the intelligent transformation of equipment systems, this study develops a scientific price estimation method based on functional capability contribution. A nonlinear pricing model is constructed to accurately characterize the two-stage evolution of software price: diminishing marginal utility during the mature technology accumulation stage and exponential growth during the technical bottleneck breakthrough stage. To ensure the consistency of pricing logic between hardware and software, a penalty function is innovatively designed to modify the standard likelihood function, effectively transforming practical business logic into a model regularization term. Parameter estimation is achieved by employing a Bayesian inference framework integrated with operational constraints, utilizing Markov Chain Monte Carlo (MCMC) sampling to realize robust posterior inference under small-sample constraints. Empirical analysis demonstrates that the proposed method achieves superior cross-domain data transfer performance compared to traditional baseline models, with a Leave-One-Out Cross-Validation (LOOCV) Mean Absolute Percentage Error (MAPE) of 21.2%. This research provides a practical value-oriented price estimation method for embedded equipment software pricing. Full article

This paper discusses how digital transformation takes place in public knowledge institutions by examining public libraries as socio-technical service ecosystems, and conceptualizes digital maturity. Based on Service-Dominant Logic and the socio-technical systems theory, this study explores digital maturity as a natural product of convergence in technological infrastructures, professional expertise, governance mechanisms, and community involvement. The data analysis is conducted on a structured 48-item questionnaire which, at its turn, is based on a sample of 101 members of library staff in public libraries in Romania. The Romanian dataset is contextualized by using a national comparative dataset comprising 363 respondents from France. We employ a mixed method of descriptive and inferential statistical analyses and thematic coding in order to investigate institutional adaptability, AI readiness, and service development trends. The results reveal the continuing movement from collection-centered models toward hybrid physical–digital service platforms and differences in digital maturity and overall strategic planning among institutions. The results demonstrate that digital maturity is sensitive to the organized coordination and the planning capability in institutions rather than to isolated technological adoption. Drawing from this evidence, the study proposes an analytical framework and a tempered analytical lens for interpreting digital transformation processes in public knowledge ecosystems, forming a solid foundation for more general investigations of institutional adaptation to digitally mediated environments. Full article

This study evaluates the adoption and efficacy of the 5th Dimension Building Information Modelling (5D-BIM) as a cost dimension for mega rail projects, extending the discussion beyond just technological implementation to consider broader policy and practical implications. The purpose of this article is to understand the governance context of 5D-BIM implementation for rail and transport projects and evaluate the effectiveness of the 5D-BIM framework as currently applied by conducting semi-structured interviews with key stakeholders. Drawing on semi-structured interviews with 22 stakeholders across government, industry, and technology providers, the research examines current 5D-BIM practices. While the primary focus of the research is 5D BIM implementations within the state of Victoria, Australia, which is currently experiencing a surge in rail projects, interviews were also conducted with additional stakeholders from international rail projects for context. The findings reveal fragmented adoption, varying levels of organisational maturity, and significant policy and implementation gaps, particularly in the role of government as the primary client of transport infrastructure. The results of the interviews emphasise the centrality of government and regulatory context in driving the adoption and implementation of 5D-BIM as the primary client of transportation infrastructure and identify actionable recommendations for policymakers and practitioners towards a more integrated approach to 5D-BIM in mega rail projects. While 5D-BIM demonstrates clear benefits in enhancing cost estimation, coordination, and decision-making, its effectiveness is constrained by the absence of clear standards, limited BIM literacy, and inconsistent regulatory guidance. This study provides one of the first empirical validations of the 5D-BIM governance framework, demonstrating that its success is driven less by technological capability and more by policy alignment, standardisation, and institutional leadership. Full article

Digital transformation has become one of the key drivers of airport sustainability development; however, existing digital maturity frameworks are not fully tailored to the aviation context, particularly within Australia. This study built a conceptual digital maturity model for Australian airports by integrating ISO/IEC maturity framework with the Airport 1.0–5.0 concept. A structured literature review informed the dimension formulation, and the model was validated through case studies of Australia’s Big 4 airports and one regional airport. The findings show that the Big 4 airports have largely achieved Airport 4.0 maturity, while Cairns Airport demonstrates maturity between Airport 2.5 and 3.0. These results confirm the model’s applicability and discriminative capability across diverse operational scales. The proposed model offers a practical, context-specific framework for benchmarking, planning, and guiding digital transformation initiatives across Australian airports. Full article

Accurate navigation line recognition in mature soybean fields presents significant challenges due to complex backgrounds. To address this issue, we developed an enhanced YOLOv10n-based model for robust visual navigation, and the assessment was conducted in the experimental fields of the laboratory. The dataset comprised 1363 original images collected at this site and was expanded to 5452 images through data augmentation. The study utilized an innovative data annotation approach focusing on inter-ridge navigation areas to minimize background noise from mature soybean rows. The model was optimized by integrating the CSP Multi-Scale Edge Information Enhancement (CSP-MEIE) module and a lightweight detection head. This architecture significantly improves efficiency, achieving a model size of just 4.5 MB and a parameter count of 2.137 M, while delivering a rapid detection speed of 204.1 FPS. Crucially, the model expands the effective receptive field to 96.6% (t = 99%), far exceeding the 73.0% of the baseline YOLOv10n, ensuring robust feature capture without compromising accuracy (92.6% mAP50-95). For path planning, path points were extracted and predicted using a combination of Kalman filtering and adaptive segmentation. Field experiments demonstrated the system’s effectiveness, achieving an average distance error of 4.53 pixels and an average angle error of 3.57°, a processing speed of 28.17 ms per frame, and a navigation line recognition accuracy of 98.05%. These findings highlight the method’s capability to meet real-time agricultural requirements, offering a reliable visual perception and decision-making basis for autonomous navigation in complex field environments. Full article

The increasing digitalization of manufacturing systems and emphasis on sustainable development are transforming maintenance from a purely operational function into a strategic driver of customer value in the digital economy. However, the relationship between maintenance maturity and consumer-perceived sustainability remains largely unexplored. This study addresses the following research questions: (RQ1) How does maintenance maturity influence consumer-perceived sustainability and trust? (RQ2) How can operational resilience be linked to customer perception through a structured modeling approach? (RQ3) Which maintenance strategy provides the highest combined operational and sustainability value? To address these questions, the Integrated Maintenance Maturity Model with a Customer-Centric Sustainability Layer (IMMM–CCSL) is proposed. The framework links maintenance maturity with consumer sustainability perception using a structured fuzzy-based aggregation approach. Five consumer-oriented dimensions are considered: product lifecycle extension, service continuity and trust, consumer maintenance experience, perceived ecological performance, and post-sale engagement. A composite Customer Sustainability Index (CCSI) is introduced to quantify the relationship between maintenance maturity and consumer perception. The model is applied in an illustrative case study comparing reactive, preventive, predictive, and AI-enhanced maintenance strategies. The results indicate that CCSL values range from 0.709 to 0.749, while the overall CCSI equals 0.729, suggesting a consistently high level of consumer-perceived sustainability associated with higher maintenance maturity. Predictive maintenance demonstrates the highest contribution to both operational reliability and perceived sustainability outcomes within the analyzed case. Overall, the IMMM–CCSL framework offers a structured, interpretable tool for aligning maintenance strategy with sustainable production and consumption objectives, supporting managers and policymakers in translating technical capabilities into measurable consumer sustainability outcomes. The findings should be interpreted as exploratory and case-specific, given the illustrative nature of the study. Full article

Background: Research on what promotes agility and resilience in the supply chain from an organizational strategy perspective is limited. This paper profiles the factors that can enable supply chain agility and resilience, with a special emphasis on organizational strategy. Method: Using an exploratory approach, the study first identifies the enablers of supply chain agility and resilience and then applies Fuzzy Total Interpretive Structural Modeling (Fuzzy TISM) to rank them. Data were collected from experts using a literature-derived knowledge base. Results: The findings reveal key resource and knowledge-based enablers (Integration, both internal and external; Knowledge Management; Culture for Flexibility, Risk Management, Innovation, Organizational Ambidexterity, Absorptive Capacity, and Collaborative Communication) that strengthen resilience and agility, offering insights into mitigating disruptions caused by macro- and micro-level factors and global interdependencies. Conclusions: The study contributes by exploring the enablers of supply chain agility and resilience through an organizational strategy lens. By applying a rent-yielding mechanism grounded in resource and dynamic capability theories, the study advances theoretical maturity in this domain from an emerging-country context. Full article

Digital maturity models are widely used to support transformation; however, many remain organization-level, lack transparency, and are only weakly linked to implementation prioritization. These limitations are especially consequential in purchasing, where maturity may vary substantially across activities and sub-processes. This study develops a process-level digital maturity assessment-and-roadmapping (DEMA) artifact for purchasing. Within the broader DEMA architecture, this study develops and evaluates only the Smart Business Processes component, while retaining Digital Strategy and Infrastructure as a contextual architectural layer. Drawing on design science research and maturity model development guidance, DEMA was developed through literature synthesis, iterative expert involvement over approximately 18 months, and structured refinement conducted in approximately 20 sessions. The artifact was refined through three anonymized pilot applications in electronics manufacturing SMEs and then demonstrated through a focal case application in an electronics SME that used an ERP system but lacked a purchasing-specific digital transformation roadmap. Evaluation was utility-oriented rather than psychometric, focusing on whether the artifact could (i) generate differentiated capability profiles across purchasing subprocesses, (ii) improve item clarity, stage interpretation, and scoring logic through pilot-based refinement, and (iii) translate assessment results into feasible targets, priorities, and sequenced roadmap actions under facilitated conditions. To provide bounded but direct validation evidence, the study also included a lightweight two-rater consistency and interpretability check on a representative subset of 24 items, together with a structured diagnosis-to-roadmap traceability review of six representative items. The results showed moderate exact agreement, perfect adjacent agreement, positive weighted inter-rater agreement for ordinal ratings, and favorable interpretability scores. Together, these findings provide bounded empirical support for the artifact’s practical consistency and usability within the study’s development-oriented scope. Unlike reflective survey scales, the DEMA is evaluated here as a staged, prescriptive maturity grid. Accordingly, the methodological emphasis is on interpretability, traceability, and assessment-to-action usefulness in facilitated use rather than psychometric scale validation. The DEMA integrates a fully disclosed 70-item staged instrument with explicit scoring, dual-target setting, dependency-aware prioritization, and a structured implementation methodology. In the focal case, the artifact revealed uneven maturity profiles across capabilities, distinguished between current and target capability states, and supported the prioritization of concrete intervention areas, such as data-entry automation/RPA, digital tool budgeting, remote-access improvement, and analytics-related training. Rather than pursuing psychometric scale validation, this study presents a transparent, implementation-oriented artifact for purchasing and shows how process-level maturity diagnosis can be translated into roadmap development in guided-application settings. Therefore, the contribution is design-oriented and practice-facing rather than a claim of broad theoretical advancement or comparative superiority over existing maturity frameworks. Full article

Food safety systems are undergoing a profound and urgent transformation, shifting from traditional end-product inspection models toward integrated, preventive, and predictive approaches supported by digital, genomic and data-driven technologies. Conventional frameworks face increasing limitations in the context of globalized supply chains, climate variability, emerging hazards, and growing sustainability demands. This structured narrative review critically examines the technological and governance trends driving the transition toward digital and predictive food safety systems, with particular emphasis on their implications for sustainability. Key enabling technologies (including artificial intelligence (AI), whole-genome sequencing (WGS), Internet of Things (IoT)-based monitoring, blockchain-enabled traceability, and predictive analytics) are analyzed in terms of their capacity to enhance early hazard detection, real-time surveillance, and risk anticipation across the food supply chain. Beyond a descriptive overview, this review integrates technological, regulatory, and governance dimensions to identify convergence points, implementation barriers, and sustainability trade-offs, with particular attention to small and medium-sized enterprises and low- and middle-income countries. Furthermore, a four-level Digital Maturity Framework is proposed to conceptualize progressive stages of technological integration, providing a structured pathway for the evolution from reactive to predictive food safety systems. While digital and predictive approaches offer significant potential to reduce food losses, improve transparency, and strengthen evidence-based decision-making, their effective implementation remains constrained by infrastructure gaps, data governance challenges, regulatory fragmentation, and unequal access to digital capabilities. Achieving resilient and sustainability-oriented food safety systems will therefore require coordinated innovation, regulatory harmonization, and inclusive digital transformation strategies. Full article