Search Results (325)

As a city rich in historical and cultural heritage, Guangzhou has made substantial efforts to protect and revitalise its historic districts. This study examines Yongqing Fang, a well-known commercialised historic district in Guangzhou, to understand how tourism-driven development reshapes everyday life and the interactions among its diverse users. Using comparative analysis, interviews, and NVivo 12 coding, the research explores how longstanding residents and newer occupants adjust to the rapidly evolving environment. The findings reveal that urban renewal and commercialisation have undermined local culture and social networks, altering how spaces are used. While lifestyle differences are evident among different user groups, the study also highlights instances of alienation and conflict, as well as moments of positive interaction and mutual support. The research emphasises the importance of inclusive strategies in heritage renewal and raises the question, drawing attention to the challenges faced by marginalised users in commercialised historic districts. It offers recommendations for policymakers, urban planners, and other stakeholders to balance heritage preservation with the social and economic needs of communities, fostering sustainable integration of tourism and local life in historic districts. Full article

Although the European Union positions the bioeconomy at the core of its sustainability transition and the European Green Deal, the cross-country distribution of bioeconomy value-added associated with mission-oriented public R&D support remains highly uneven. This paper investigates how national researcher capacity (as a proxy of absorptive capacity) shapes the macroeconomic effectiveness of bioeconomy-oriented public R&D support, and how societal climate-oriented environmental concern acts as a direct structural driver of bioeconomy value-added. Using a panel dataset of 27 EU Member States from 2008 to 2020, the study constructs an original bioeconomy-specific measure of government budget appropriations for R&D (GBARD) and estimates two-way fixed-effects models with Driscoll–Kraay standard errors to account for cross-sectional dependence. The findings reveal a clear capacity-dependent conditional moderation effect: public R&D support is significantly associated with higher bioeconomy value-added only when a critical mass of researcher capacity is present. Sectoral disaggregation demonstrates that business enterprise researcher capacity acts as the primary transmission channel linking public funds to the market, whereas higher-education capacity shows no statistically significant short-to-medium-term moderating effect, consistent with the academic research commercialisation time lags documented in the literature. Additionally, societal climate-oriented environmental concern is positively associated with bioeconomy value-added in the baseline models, consistent with its role as a demand-side factor fostering receptive conditions for bio-based transitions. The study concludes that increasing mission-oriented R&D funding alone is likely insufficient; to successfully cross the “valley of death,” public R&D should be accompanied by complementary policies that build private-sector absorptive capacity and cultivate green market demand. Full article

This contribution engages with perspectives, concerns and experiences of artists who staged either their own life stories or the life stories of others. At its core, it challenges the idea that staging a life story is solely an empowering, self-enabling and emancipatory aesthetic practice. By analysing two choreographies and their respective working conditions, as well as an interview with one of the choreographers, this article reflects on the commercialisation and neoliberal extraction of personal life stories. Further, this contribution revisits the concept of ‘cultural mobility’ with two case studies. The first one, mi vida en tránsito (2022), draws on the precariousness and vulnerability experienced in times of professional mobility in the Central European dance scene. Overseas (2022), the second case study, criticises the Eurocentric assumption that mobility is equally distributed across the globe. To analyse both case studies, this article establishes ‘cultural immobility’ as a scholarly perspective on how immobility relates to the production, performance, practice and circulation of cultural artefacts and artistic works. Full article

Maximising the energy yield of perovskite solar cells (PSCs) through bifacial architectures is a promising route toward commercialisation. However, optimising charge extraction at the interfaces remains a critical challenge. In this study, we systematically compare tin dioxide (SnO₂) and titanium dioxide (TiO₂) electron transport layers (ETLs) in bifacial guanidinium-incorporated PSCs with a transparent gold (10 nm) back electrode. While the bulk perovskite crystallinity remains invariant on both substrates, SnO₂ provides a distinct optical advantage through enhanced UV-blue transmittance. Beyond these optical benefits, comprehensive recombination process analyses reveal that SnO₂ drastically suppresses non-radiative recombination. The SnO₂ layer effectively mitigates defect states, significantly reducing both bulk and surface trap-assisted recombination rates without disrupting intrinsic bimolecular charge transport. Ultimately, these findings underscore the critical importance of rational interfacial engineering to neutralise defects, proving SnO₂ to be an indispensable component for realising highly efficient and commercially viable bifacial perovskite optoelectronics. Full article

Maize (Zea mays L.) is a significant staple food crop in the developing world. Despite its significance, diseases and pests are limiting its supply. Farmers have primarily relied on synthetic chemicals as control measures; however, these chemicals are harmful to humans, animals, and the environment and exacerbate pest recurrence. Medicinal plants have shown promising potential as alternative pest- and disease-controlling agents, offering an economical, sustainable, biodegradable, and cost-effective approach. This review article synthesises phytochemical, ethnobotanical, and experimental data from relevant peer-reviewed papers published across various years to identify medicinal plants. Thirty-one unique plant families have been identified and have been used to control pests and diseases of maize. Some families represented both antifungal and insecticidal applications. Medicinal plants such as Senna obtusifolia, Euphorbia balsamifera, Aristolochia ringens, Allium sativum, Azadirachta indica, Carica papaya, Moringa oleifera, and Ficus exasperata have shown antifungal and insecticidal properties, primarily under laboratory conditions. Most of the evidence is derived from laboratory studies, with only limited validation in real field conditions and with limited evaluation of safety for non-target organisms. Furthermore, this review highlighted the extraction methods, solvents used, plant parts, major active ingredients, and mode of action. Future prospects for integrating ethnobotanical knowledge with contemporary scientific methods to optimise biopesticide production are also discussed, along with the challenges of standardisation, formulation, and commercialisation. Full article

Ferritic stainless steels are widely used as interconnects of solid oxide fuel cells (SOFCs) due to their high temperature stability and thermal expansion similar to that of the electrolyte. To help commercialise SOFCs, commercial-grade ferritic stainless steel with a coating, i.e., Type 430, has been considered a promising material for this application. In this work, we developed a Mn-Co oxide coating via anodic electrodeposition followed by heat treatment processes in Ar and oxygen at 800 °C. The proposed coating helped reduce the formation of Cr-rich oxide at the interface between the coating and substrate relative to a sample coated without annealing in Ar. It also provided a relatively dense coating layer and better withstood the applied load, provoking the first spallation of the coating layer assessed by the scratch test. A diagram used to assess the effects of pore density and size on the coating’s protectiveness is included in the manuscript. Full article

Proton exchange membrane fuel cells (PEMFCs) are among the most promising clean energy conversion technologies, offering high efficiency and zero emissions. However, their large-scale commercialisation is limited by the high cost and environmental impact of conventional perfluorosulfonic acid membranes such as Nafion. In recent years, increasing attention has been directed toward biopolymer-based membranes as sustainable, low-cost, and biodegradable alternatives. This review provides a comprehensive overview of recent advances in the development and modification of biopolymer membranes, including polysaccharide-based materials such as chitosan, cellulose, gellan gum, sodium alginate, and starch, as well as protein-based materials such as keratin and collagen. Various modification strategies, including sulfonation, phosphorylation, cross-linking, and incorporation of inorganic or hybrid fillers, are analysed for their impact on key parameters, including proton conductivity, methanol permeability, and power density. Comparative data indicate that several modified biopolymer membranes achieve proton conductivities of 50 mS/cm or higher. However, higher conductivity values are generally reported for membranes primarily composed of synthetic polymers, where the biopolymer is incorporated only as an additive. In addition, some biopolymer-based membranes exhibit significantly lower methanol permeability than Nafion. The lowest reported value among the membranes discussed in this article is 0.98 × 10⁻¹⁶, representing the best-performing biopolymer membrane in terms of methanol permeability alone. Although many biopolymer membranes demonstrate relatively poor performance in single PEMFC tests, several have achieved power densities comparable to Nafion, while simultaneously offering improved environmental compatibility and sustainability. Finally, current challenges and future directions are discussed, emphasising the potential of these renewable materials to advance PEMFC technology toward more sustainable and economically viable energy systems. Full article

Marine macroalgae, microalgae, and associated microorganisms are increasingly recognised as valuable sources of bioactive compounds with applications across biotechnology and health. The environmental and ecological conditions they inhabit shape their metabolite diversity, leading to the production of high-value compounds such as sulphated polysaccharides, lipids, pigments, phenolics, and peptides. These compounds exhibit conserved biological activities that underpin potent antioxidant, anti-inflammatory, cytotoxic, and pro-regenerative effects with strong potential for translation. Although external factors drive rich metabolite diversity, continual variation can also lead to translational constraints including heavy-metal accumulation, inconsistency in extract composition, and regulatory complexity. This review examines the environmental drivers of metabolite diversity and the functional potential of bioactives derived from marine algae. We focus on their translational application within four areas of growing interest: nutraceuticals, cosmetics, regenerative medicine, and oncology, where emerging evidence suggests their promise as next-generation bioactive ingredients and therapeutic leads. In addition, insights from Irish and Welsh Small and Medium Enterprises (SMEs) are collated to identify key bottlenecks in commercialisation and the requirements for effective marine biodiscovery pipelines. We consider the importance of controlled cultivation, standardised analytics, preclinical testing platforms, and collaborative innovation ecosystems and highlight the need for coordinated scientific, technical, and regulatory advances to unlock the full translational potential of marine-derived compounds. Full article

This study examines the preservation of cultural landscapes in Asian heritage villages, using the Qiaonan Village in China as a case study. The study proposes an integrated model that combines macro-level planning, meso-level governance and micro-level community participation. Key findings show that only 32% of residents perceive the distribution of tourism benefits as fair, while a GIS analysis revealed a 28% increase in commercial land use within the heritage core between 2019 and 2022, indicating rising commercialisation pressures. The study explores the tensions between heritage conservation and tourism-driven development, with a focus on spatial integrity and local identity. It suggests that co-management and equitable benefit-sharing could strike a balance between economic growth, preservation, and community well-being. Rather than offering validated solutions, the research provides a diagnostic lens and generates hypotheses for other heritage villages. The transferability of these findings depends on local governance capacity, regulatory clarity, and the stage of tourism development, factors that will require systematic assessment in future comparative research. Full article

The Mediterranean limpet (Patella caerulea, Linnaeus, 1758) is a native species in Türkiye that is not yet a major commercial species but has potential for future commercialisation, particularly given the country’s substantial mollusc export market. This study aimed to evaluate seasonal and station-level variation in trace-element burdens in P. caerulea collected from the Sinop inner harbour (southern Black Sea coast, Türkiye) and to assess the associated trace-element–related non-carcinogenic health risks under a precautionary consumption scenario. Spatial and seasonal variations in the concentrations of 10 trace elements (Mn, Fe, Co, Ni, Cu, Zn, Cd, Pb, Hg, and total As) were analysed in specimens collected seasonally from autumn 2022 to summer 2023. Permutational multivariate analysis of variance revealed that season was the primary factor influencing trace element concentration variability, accounting for 76.9% of the total variance, followed by station (11.2%) and the season × station interaction (7.2%). All elements varied significantly among seasons (Kruskal–Wallis, p < 0.001), with maxima in autumn and minima in winter. Spatial differences were significant only for Mn, Co, Pb, Zn, and Hg, indicating localised sources. A human health risk assessment was performed for 6-year-old children, 12-year-old children, and adults. Total target hazard quotient (TTHQ) values were <1 across all groups; however, Cd was the dominant contributor, with the highest value observed in children (max TTHQ = 0.94). TTHQ followed the seasonal contamination pattern, peaking in autumn. Even under the high-consumption scenario, TTHQ for P. caerulea from the Sinop inner harbour remained below the non-carcinogenic risk threshold. The strong seasonal signal supports its use in locally focused biomonitoring, while the health-risk assessment should be limited to the analysed trace elements and associated non-carcinogenic effects. Full article

The accumulation of petroleum-based plastics demands sustainable alternatives such as polyhydroxyalkanoates (PHAs), biodegradable polyesters synthesised by numerous prokaryotes. However, high feedstock costs limit their commercialisation. This study evaluated cocoa mucilage, an underutilised by-product of the Ecuadorian cacao sector, as a low-cost carbon source for PHA production by a wild-type strain isolated from cocoa fruit residues. Bacteria were recovered from cocoa mucilage and pod shell fractions and screened for PHA accumulation by Sudan Black B staining with UV–Vis spectrophotometric confirmation. A single PHA-positive isolate, designated Priestia aryabhattai strain NBP01-UTN (GenBank accession OR567321.1; 99.88% 16S rRNA gene sequence identity to the type strain B8W22T), was recovered from the cocoa shell surface—representing, to the best of our knowledge, the first report of a PHA-producing P. aryabhattai from cacao fruit residues. Fermentation conditions were optimised using the response surface methodology with a central composite design evaluating temperature, pH, and ammonium sulphate concentration. The fitted quadratic model was highly significant (R² = 0.978, p < 0.0001), indicating that temperature and nitrogen limitation were the dominant factors. Optimal conditions (40 °C, pH 7.30, 0 g·L⁻¹ (NH₄)₂SO₄) yielded 0.496 g·L⁻¹ PHA at 24 h (productivity ≈ 20.7 mg·L⁻¹·h⁻¹). Notably, no external nitrogen supplementation was required, as the endogenous nitrogen in cocoa mucilage sufficed to sustain growth whilst triggering the nutrient imbalance needed for PHA biosynthesis. FTIR and DSC analyses provided spectroscopic and thermal evidence consistent with poly(3-hydroxybutyrate) (PHB), although definitive monomer-level confirmation requires GC–MS or NMR spectroscopy. These results demonstrate the feasibility of coupling a locally isolated wild-type strain with cocoa mucilage to produce bioplastic within a circular bioeconomy framework. Full article

Background: Indigenous African fruits, like the African horned cucumber (Cucumis metuliferus), are abundant in nutrients and serve as a source of food and raw materials for manufacturing value-added products in both rural and urban areas. This review presents a comparative analysis of selected fruits in the Cucurbitaceae family, specifically in terms of the phytochemical, biochemical and mineral constituents, as well as nutritional contribution, and aims to explore how the African horned cucumber measures up to its counterparts by comparing their nutritional content against the recommended daily intake (RDI). Material and Methods: A literature search—using the keywords ‘African horned cucumber’, ‘Cucurbitaceae fruits’, ‘biochemical constituents’, ‘indigenous fruits’ and ‘recommended daily intake’—was used to gather credible data suitable for this review paper. Findings and Conclusions: The published peer-reviewed literature reveals that the African horned cucumber—with its nutrient-rich profile boasting high levels of calcium (19%), potassium (28%), magnesium (78.1%), sodium (10.7%), zinc (12.7%), beta carotene (15.5%), vitamin C (4.1%), vitamin E (15.2%), total flavonoids (0.28%), and total phenols (0.7%)—holds the promise of contributing significantly to the human diet while aligning with the RDI and dietary guidelines, as documented in studies, further underscoring its potential to meet nutritional needs and enhance health, thus supporting its consideration for commercialisation. Full article

Non-fungible tokens (NFTs) are transforming the commercialisation of digital art by establishing unique blockchain identifiers that ensure authenticity and certify subsequent transactions. However, the transfer of control over an NFT does not automatically include the transfer of the associated copyrights, thereby creating legal uncertainty as to what rights are actually acquired. This interdisciplinary project between engineering and law proposes the design of a smart contract, based on the ERC-721 standard, to manage the transfer of property rights linked to digital artworks represented as NFTs. The accompanying legal contract incorporates essential clauses covering the identification of the parties, a description of the artwork and its link to the token, pricing, royalties, and the terms of rights transfer. The proposal seeks to integrate blockchain technology with existing legal frameworks, offering an innovative solution that strengthens legal certainty in the transfer of copyright within digital environments. Full article

Under the dual pressures of urbanization and tourism development, the Historic Centre of Macao, as a World Cultural Heritage site, faces challenges including the inadequate transmission of cultural elements and the excessive commercialisation of tourism development. To systematically identify and safeguard its cultural characteristics, this study introduces the theory of cultural genes, constructing a dual-strand identification model encompassing both tangible and intangible cultural genes. This model integrates architectural function, structure, and ornamentation, alongside indigenous religions, arts, and folklore, thereby achieving a comprehensive extraction of cultural elements. Building upon this foundation, the study employed the AHP-fuzzy comprehensive evaluation method to quantitatively assess the degree of identification with various cultural elements, integrating perspectives from three distinct groups: tourists, residents, and third-party experts. The findings revealed significant disparities in cultural identification across these groups. For instance, residents demonstrated the highest level of identification with beliefs and folk customs, whilst tourists favoured more tangible aspects such as decorative elements and cuisine, exhibiting generally weaker identification with architectural structures. The findings demonstrate that this study, through the establishment of a systematic framework for identifying cultural genes and a multi-stakeholder evaluation system, has accurately discerned the characteristics of various cultural genes and the public’s level of identification with them. This provides a scientific basis for evidence-based, differentiated, and precise governance of the Historic Centre of Macao, offering significant reference value for the conservation and revitalisation of similar cultural heritage sites. Full article

With the rapid expansion of the global textile sector and increasing awareness of the environmental pollution caused by textile waste, enhancing the recycling of textile waste has become essential to reduce the volume of materials sent to landfill or incineration. As recycling technologies advance, automated sorting systems that are capable of handling large waste streams and accurately identifying materials for appropriate recycling pathways are increasingly recognised as being critical for efficient textile-waste management. Since 2015, over 20 studies have specifically explored technologies and strategies for automating textile sorting of textile wastes. This mini review introduces various textile fibre identification technologies, including traditional visual and tactile examination; label checking and modern identification technology; and NIR, FT-IR, RFID tags. It summarises the current state of sorting processes, with particular emphasis on the development of AI-assisted, fibre-type-based sorting technologies. Commercial scale automated sorting is not established yet for textile waste recycling, due to the complexity of materials used in textiles, the equipment identification limits and high cost of processing, while machine learning and artificial neural networks provide opportunities for future research advancement and commercialisation. Full article