Search Results (1,214)

The inhibition of angiotensin-converting enzyme (ACE) to lower angiotensin is important in the treatment of hypertension (HT). ACE inhibitory activity is rarely documented in Thai traditional and indigenous medicine. Here, we evaluated the angiotensin I–converting enzyme inhibitory (ACEi) activity through bio-screening of selected medicinal plant species traditionally used for HT treatment by ethnic communities in northern Thailand, including Blumea balsamifera (L.) DC., Clerodendrum chinense (Osbeck) Mabb., Rotheca serrata (L.) Steane & Mabb., and Zingiber purpureum Roscoe. Using an in vitro assay, ethanolic extracts were evaluated for ACE inhibitory activity. Among the four extracts tested, the ethanolic leaf extract of Blumea balsamifera was the most effective by reducing ACE activity by 29, 36, and 64% at concentrations of 0.4, 2.0, and 10.0 mg/mL, respectively. The rhizome extract of Zingiber purpureum showed the second highest activity, with inhibition rates of 34%, 39%, and 40% at the corresponding concentrations. Cytotoxicity testing in HEK293T kidney cells was conducted to underscore the detectable toxicity under the tested conditions. Interestingly, intercultural and cross-cultural comparisons revealed a degree of agreement in the use of medicinal plants for hypertension treatment. Plant species traditionally used across multiple cultures tended to show higher levels of ACE inhibitory activity, suggesting their potential as candidates for the development of novel anti-hypertensive agents. To our knowledge, this is the first report describing the ACE inhibitory activity of medicinal plant species used for hypertension treatment by ethnic communities in northern Thailand. Full article

Urban green infrastructure (GI) is widely promoted for cooling, stormwater regulation, biodiversity support, and human health benefits; however, these benefits remain unevenly distributed across communities with different socio-economic status. Machine learning (ML) is increasingly used in GI planning and design through high-resolution mapping and demand and exposure modelling, enabling planners and landscape architects to explore scenarios and assess alternative solutions based on the benefits generated. However, ML risks generating or perpetuating spatial injustice through biassed training, opaque optimisation priorities, and epistemic exclusion of Indigenous and local knowledge when models are not developed and applied transparently and collaboratively. This perspective discusses recent GI and ML trends and debates to: (i) clarify how ML can support equity-oriented GI planning; (ii) identify technical and socio-economic risks; and (iii) outline ethical and governance pathways supportive of legitimate and accountable GI planning. We argue that ML should be treated as a component of socio-technical governance rather than a neutral technical tool and therefore should be applied through collaborative design and periodic re-evaluations. Full article

Environmental knowledge encoded in Bahnar, an Indigenous language of Vietnam, is vital to the Bahnar community and contributes to broader understandings of biodiversity, climate resilience, and sustainable lifeways. We describe a collaborative approach to documenting Bahnar that integrates computational methods with ethnographic, lexicographic, and linguistic fieldwork. Because Bahnar knowledge is transmitted almost entirely through oral tradition rather than writing, effective documentation cannot rely solely on extractive corpus-based or NLP tools. Although three legacy bilingual Bahnar dictionaries exist, they are partially obsolete, uneven in coverage, and largely inaccessible to the community itself. Our corpus analysis of the Bahnar environmental vocabulary, complemented by intensive community-based fieldwork, reveals semantic patterns that closely link environmental knowledge with Bahnar lifeways, subsistence practices, and material culture. These patterns, we argue, are language-specific and may not emerge from analyses of environmental lexicons in languages such as English or Vietnamese. Bahnar semantic categories attribute aesthetic, medicinal, mythological, and spiritual agency to animals, plants, and landscapes, contrasting with classificatory frameworks common in post-industrial societies that emphasize biophysical, scientific, or economic properties. We propose that community-centered digital lexicography can strengthen Bahnar language vitality, enhance local access to cultural knowledge, and simultaneously advance comparative linguistic and environmental research. Full article

Objectives: Inadequate access to safe water, sanitation, and hygiene (WASH) continues to drive infectious diseases, malnutrition, and educational disparities, particularly among vulnerable populations. This systematic review examined WASH intervention strategies implemented in Malaysia between 2014 and 2025, focusing on shifts in hygiene-related knowledge, attitudes and practices (KAP), health outcomes, infrastructure improvements, and implementation challenges. Methods: A comprehensive search across five databases (Science Direct, PubMed, Scopus, Web of Science, and Google Scholar) identified twelve eligible studies targeting schools, healthcare settings, and rural or Indigenous communities. Results: Education-based interventions predominated (n = 10), often employing participatory and theory-driven approaches grounded in the Health Belief Model or Information–Motivation–Behavioural Skills framework. Evidence revealed significant improvements in KAP, particularly when digital, gamified, or storytelling elements were integrated. Community-led and caregiver-inclusive models demonstrated greater behavioural adoption and retention. Thematic analysis identified several implementation challenges, which include (i) sole reliance on self-reported outcomes with limited use of objective indicators, (ii) short intervention durations (<2 months) that limit long-term impact, and (iii) lack of policy and curriculum integration. Conclusions: Findings underscore the need for culturally tailored, longitudinal, and system-embedded interventions that combine behavioural theory with infrastructure investment. Integrating WASH initiatives into Malaysia’s health and education frameworks could advance Sustainable Development Goal 6, ensuring scalable and equitable improvements in hygiene literacy, community resilience, and public health outcomes. Full article

Debates concerning the Nature of Science (NoS) have increasingly acknowledged its epistemic, cultural, ethical, and social dimensions. Recent scholarship has further foregrounded issues of equity, identity, and justice within science education. While these developments represent significant progress, this article argues that dominant conceptualisations of NoS remain fundamentally anthropocentric and insufficiently responsive to the ecological crises that define the Anthropocene. Drawing on Earth System Science, eco-centric theory, post-human theory and Indigenous and local knowledges, this paper proposes a planetary-conscious reconceptualisation of NoS. This framework retains the methodological rigour and evidential standards of Western science while expanding epistemic boundaries to include relational, place-based, and intergenerational ways of knowing. We argue that eco-centric and post-human theoretical frameworks offer essential pedagogical approaches for supporting young people to develop deeper connections with nature, fostering care-based relationships with the more-than-human world, and building resilience for sustainable futures. Such a reconceptualisation is necessary not only for scientific literacy but for the protection and enhancement of planetary health. Implications for curriculum, pedagogy, and teacher education are discussed, with particular attention to primary science education. Full article

In an era of accelerating geopolitical realignments and intensifying climate volatility, the interconnected domains of land, food, and climate have emerged as critical axes of global inequality, demanding renewed attention within sustainability education. This study addresses the central problem that existing geography, environmental, and sustainability curricula rarely engage with the geopolitical forces shaping Water, Energy, Land and Food (WELF), thereby obscuring progress toward achieving SDG 2 (Zero Hunger), SDG 13 (Climate Action) and SDG 15 (Life on Land). Situated within the Water, Energy, Land, and Food (WELF) nexus. Employing a Systematic Literature Review methodology, guided by PRISMA protocols and grounded in Political Ecology Theory, findings reveal that agricultural protectionism and land-grabbing dynamics originating from the Global North exacerbate climate-induced food insecurity and land dispossession in the Global South. Critically, the synthesis demonstrates that these dimensions of climate–food geopolitics remain inadequately addressed in existing curricula, leaving learners ill-equipped to critically analyze the structural forces underlying land-based vulnerabilities. The study recommends embedding land–food–climate geopolitics into sustainability curricula through decolonial, systems-thinking pedagogies; integrating scenario-based simulations of land-centric climate negotiations; and developing transdisciplinary modules that combine geospatial land-use analysis, political economy of agrifood systems, and indigenous land knowledge. Full article

Cultural habitats are the relationships between traditional peoples and the plants, animals, and geological features of their ancestral landscapes. These relationships form the human dimension of geoheritage. However, research on cultural habitats and research on geoheritage have typically developed separately. This review brings these two frameworks together by drawing on four decades of ethnobotanical and ethnoecological studies, involving 24 research projects with Native American tribes and traditional communities in North America and the Caribbean. Using ethnographic methods, habitat mapping, and indices to measure cultural significance, the research documented how traditional communities use plants and define the extent of their cultural habitats. Analysis of six case studies shows that each cultural habitat is closely tied to a unique geological or landform feature. In all cases, the official heritage boundaries set by nomination processes are smaller than the areas traditional peoples recognize as their cultural habitats. This gap comes from differences between Western approaches to defining heritage and the ways indigenous and traditional communities understand their responsibilities to the land. The review calls for wider standards of evidence, collaborative approaches to setting boundaries, and co-stewardship to be included in geoheritage management policies. Full article

This study examined how indigenous perspectives are represented and discussed in the mainstream literature within the field of international social work. A scoping review was conducted to map both well-established and under-researched discourses in the literature. The findings revealed that the majority of the papers shed light on indigenous knowledges and practices in non-Western countries or regions and particularly within the Global South context, while countering imperialistic and colonialist discourses. Additionally, several papers addressed the need to move beyond the dichotomy between universalisation and indigenisation and the Western versus non-Western binary. The study findings also indicate research gaps that have remained unfilled in the mainstream literature. Full article

Cultural heritage is a critical pillar of identity, social cohesion and continuity within ethnocultural communities. However, the preservation of cultural heritage across Southern Africa is largely constrained by fragmented colonial policy implementation, and limited community engagement. This study critically examines the application of the Evidence-Based Policy and Practice (EBPP) model as a decolonizing framework for sustainable management of cultural heritage. The study conducts a structured scoping review of literature to explore the integration of EBPP with the principles of Collective Benefit, Authority to Control, Responsibility, Ethics (CARE), and the principles of Findable, Accessible, Interoperable, Reusable (FAIR) to support inclusive and ethical governance. The findings of the study reveal that sustainable management of cultural heritage is dependent upon community-led governance, alignment between research, policy, and practice, and strengthening of intellectual property protections. The study identifies persistent gaps in the operationalization of indigenous knowledge policies and highlighted the need for participatory approaches to ensure the long-term sustainability of cultural heritage. The study argues that the integration of EBPP, alongside the principles of CARE and FAIR, significantly enhances accountability, fosters data sovereignty, and supports the decolonization of knowledge systems. Thus, the study makes a significant contribution to the growing global discourse on sustainable development by positioning cultural heritage as a dynamic resource for social transformation. Full article

Vernacular housing in the Andean region embodies long-standing building knowledge, environmental adaptation, and forms of social organization rooted in rural life. Over recent decades, these dwellings have undergone visible transformations linked to migration, changing aspirations, and the growing presence of industrialized construction materials. Rather than disappearing, vernacular forms have increasingly merged with contemporary solutions, producing hybrid architectural landscapes whose local dynamics are still insufficiently documented. This study analyzes the material, typological, and functional transformation of rural housing in Las Lagunas and Quisquinchir, two Indigenous communities located in Saraguro, Loja, Ecuador. A total of 192 houses were recorded through field observation and a structured digital survey implemented with KoBoCollect. The information was processed in R using descriptive statistics, contingency tables, chi-square tests, Cramér’s V, and standardized residual analysis. The findings show that architectural change in both communities does not occur through a simple replacement of traditional housing by modern models. Instead, vernacular, hybrid, and modern/eclectic typologies coexist within the same rural setting, revealing uneven and locally specific processes of transformation. The clearest differences emerge in construction materiality. Las Lagunas preserves a stronger presence of traditional wall systems, especially adobe and bahareque, while Quisquinchir shows a broader incorporation of industrialized materials, particularly concrete block. Statistical analysis confirmed significant associations between community and wall material, as well as between typology and wall material, whereas the relationship between community and architectural typology was comparatively weaker. Functional changes were also identified through the reduction or reconfiguration of intermediate spaces such as portals, patios, and corridors, suggesting a gradual shift toward more enclosed and specialized domestic environments. These results contribute empirical evidence for understanding architectural hybridization in Indigenous rural territories and support conservation and planning approaches capable of recognizing continuity, adaptation, and change within evolving Andean built landscapes. Full article

Marine biological invasions are rapidly reshaping Mediterranean ecosystems, with growing consequences for biodiversity and fisheries. This study investigates recent changes in the composition of commercially important crustacean assemblages along the south-eastern coast of Sicily (central Mediterranean), focusing on penaeid shrimps (Penaeus aztecus and Penaeus kerathurus) and stomatopods (Erugosquilla massavensis and Squilla mantis). Field surveys were conducted during the fishing seasons of 2021 and 2025 at major landing sites and markets (Portopalo di Capo Passero, Syracuse and Catania), using standardized subsampling protocols applied to catches obtained by trammel nets and bottom trawls. Species composition was quantified through repeated sampling events, and temporal differences were analyzed using non-parametric tests and binomial generalized linear models, incorporating year and fishing gear as explanatory variables. Quantitative data were complemented by local ecological knowledge derived from structured interviews with professional fishers. Across the four-year interval, both taxonomic groups exhibited a pronounced shift in species dominance. The proportion of the invasive shrimp P. aztecus increased from approximately 20% in 2021 to over 80% in 2025, while the invasive stomatopod E. massavensis rose from about 2% to nearly 90% of total landings. These changes were statistically significant and independent of fishing gear. Fishers’ perceptions closely mirrored the quantitative trends, confirming the rapid replacement of native species by non-indigenous taxa and highlighting emerging socio-economic implications for local fisheries. Our findings document a rapid shift in the composition of commercial crustacean landings in Sicilian coastal waters, with invasive species becoming the dominant component of catches within a few years. This study underscores the need for adaptive fisheries management and integrated monitoring frameworks capable of responding to accelerating biological invasions in Mediterranean marine ecosystems. Full article

Introduction: Records of rare, deep-water, and non-indigenous fish species are of growing interest in marine biodiversity research because they refine regional inventories, improve taxonomic knowledge, and provide valuable evidence of ecological change. In regions supported by long-term monitoring programs, such findings are especially relevant, as they help detect unusual occurrences and document changes in species composition over time. Objective: The aim of this communication is to present recent records of fish species new to science and new to Spanish waters, together with a non-indigenous species, all from Galician and Cantabrian waters (northern Spain), while emphasizing the importance of scientific surveys and complementary local observations in their detection. Methodology: The material examined was collected during the annual demersal trawl surveys conducted by the Instituto Español de Oceanografía (IEO-CSIC) on the northern Spanish continental shelf (DEMERSALES), as well as during two multidisciplinary surveys carried out on the Galicia Bank in 2010 and 2011. An additional specimen was obtained from a local recreational fisher off Asturias. In all cases, species identification was based on an integrative taxonomic approach combining morphological examination and molecular analyses (COI barcoding). Results: Three species new to science were identified: Gaidropsarus gallaeciae (Gadiformes: Gaidropsaridae), Notacanthus arrontei (Notacanthiformes: Notacanthidae), and Neoscopelus serranoi (Myctophiformes: Neoscopelidae). In addition, Lyconus brachicolus (Gadiformes: Lyconidae) and Lipogenys hyalovelanum (Notacanthiformes: Notacanthidae) were recorded for the first time in Spanish waters. A specimen of Diapterus brevirostris (Perciformes: Gerreidae), native to the tropical and subtropical Pacific coast of America, was also identified off Asturias. Owing to its small size and to the proximity of the commercial port of Gijón, ballast water is considered the most plausible vector for its introduction into the Cantabrian Sea. Conclusions: These records illustrate the value of long-term oceanographic surveys for detecting rare and deep-water fishes and confirm the usefulness of integrative taxonomy for robust species identification. They also highlight the complementary role of fishers and citizen observers in documenting biodiversity change and detecting non-indigenous species in Spanish waters. Full article

Intercultural education in Mapuche contexts is shaped by persistent tensions between dominant school knowledge and Indigenous educational practices. However, there is limited comparative empirical evidence on how these tensions are distributed across educational actors. This study aimed to compare socio-educational and cultural ambivalence between students and teachers across multiple dimensions. A cross-sectional quantitative design was conducted with 546 participants (284 students and 262 teachers) from primary and secondary schools in southern Chile. Ambivalence was assessed using the Socio-Educational and Cultural Ambivalence Scale (EASC). A two-step cluster analysis identified ambivalence profiles, followed by a 2 × 2 factorial MANOVA (role × ethnicity). Results revealed three distinct ambivalence profiles (low, medium, high), with significant differences across all dimensions (p < 0.001). Multivariate analyses showed significant effects of role (Pillai’s trace = 0.230, F (6, 537) = 26.67, p < 0.001, η²p = 0.230) and ethnicity (Pillai’s trace = 0.108, F (6, 537) = 10.86, p < 0.001, η²p = 0.108), with no significant multivariate interaction (p = 0.104). Teachers reported higher levels of ambivalence than students in five of six dimensions, while Mapuche participants scored higher than non-Mapuche participants across most dimensions. These findings indicate that ambivalence is a structural condition of the educational system, unevenly distributed according to actors’ positions and intensified in roles involving pedagogical mediation. Implications point to the need for structural transformations in intercultural education, particularly in teacher education. Full article

Using theories of Afrocentricity (African Indigenous Knowledge) and of positioning, we investigated how Sub-Saharan African immigrant parents (SSAIP) support their Grade 6–9 children’s mathematics learning in Canada. Individual interviews were collected from twelve immigrant parents living in an urban community in Alberta and new to Canada (within five years). We ask: what are the mathematics experiences and perspectives of Sub-Saharan African immigrant families? We analyzed interview data from 12 SSAIPs from Greater Edmonton, Canada to identify the storylines they shared regarding their experiences and perspectives of mathematics learning. The prevailing storylines were interpreted through an African Indigenous Knowledge lens. We found that parents adjust their mathematics learning support for their children by negotiating their experiences from two cultural worlds of education: pre-colonial (African Indigenous Knowledge) and colonized worldviews, their home and host cultures, generally. We identified these storylines, some of which sit in tension with each other: “mathematics learning is a communal responsibility”, “mathematics teachers share responsibility for the moral upbringing of the child”, “mathematics as memory work is feared and stressful”, “adults tell children what to do”, “adults negotiate with children about what to do”, and “success in mathematics is a gift from God”. We interpreted the storylines through the Akan Adinkra epistemologies which manifest in the Adinkra symbols and sayings, and through our experiences living and working in Sub-Saharan Africa, to determine the way each storyline aligned with old African or new African ways. This study will be beneficial for educators wishing to adopt culturally responsive ways of engaging immigrant families in their children’s mathematics learning. Full article

Cancer represents one of the major public health issues in sub-Saharan Africa (SSA), with increasing incidence and mortality rates as a result of late diagnosis, limited healthcare infrastructure, and financial difficulties. Traditional medicine plays an important role in healthcare across different populations in SSA, as more than 80% of the population depend on indigenous plant-based remedies for treating or managing different ailments, including cancer. This study aimed to document medicinal plants traditionally used to treat cancer in SSA. A systematic search of all documents available in the last two decades (2006–2026) was conducted using PubMed, Web of Science, and Google Scholar databases. After screening studies using the predefined inclusion and exclusion criteria, 55 studies met the eligibility requirements and were selected for analysis based on their relevance to the topic, geographic scope, and reported applications in cancer management. The scientific names of the identified plant species and their taxonomic authorities were verified using the Plants of the World Online database. A total of 556 species, belonging to 110 families, were recorded as medicinal plants used to treat various forms of cancer in SSA. The top five families with the most frequently used plants were Fabaceae (51 species), Asteraceae (34 species), Euphorbiaceae (25 species), Apocynaceae (22 species) and Lamiaceae (22 species). Frequently cited plants include Kigelia africana, Annona muricata, Adansonia digitata, Carica papaya, and Tamarindus indica. A total of 11 plant parts were documented, with leaves (41.20%), roots (18.75%), and bark (17.25%) being the dominant plant parts utilised. The primary methods of preparation were decoction (38.23%), powdering and grinding (14.51%), and infusion and tea preparation (49.73%), while the main modes of administration were oral (66.88%) and topical (26.46%). The results show that traditional medicinal plants hold significant potential as sources of novel anticancer drugs in SSA. However, a significant gap exists between ethnobotanical knowledge, laboratory research, and clinical application. Rigorous pharmacological and toxicity evaluations and well-designed clinical trials on the identified medicinal plants are needed to integrate effective and safe plant-based therapies into evidence-based oncology. Full article