Search Results (22)

This study aims to assess whether micro-, small-, and medium-sized enterprises in Ecuador’s Amazon region show evidence of sustained reorientation toward selected non-extractive activities under persistent extractive dependence. Guided by four empirical propositions concerning sectoral reorientation, differential firm viability, temporal discontinuity and limited reallocation, and territorial heterogeneity, the study uses a longitudinal administrative panel of 769,344 firm-year observations for 2006–2021, complemented by descriptive evidence for 2022–2024. The empirical strategy combines fixed-effects models, non-parametric trend and structural break tests, cohort analysis, survival analysis, and transition matrices. The results indicate an emerging but constrained diversification pattern. New-economy firms increased their relative participation after the 2015–2016 commodity downturn and showed higher survival rates and stronger formal employment generation than extractive firms. However, intersectoral mobility remained limited, and the evidence does not support the interpretation of a completed structural transformation. Provincial heterogeneity further shows that extractive expansion continues to influence local entrepreneurial dynamics, especially in mining-frontier territories. The main limitation is that the analysis captures formally registered firms and does not directly measure informal-sector activity, productivity upgrading, or full regional structural transformation. The study contributes to debates on regional development, sustainability, and firm-level transformation by showing that non-extractive reorientation may emerge in peripheral resource-dependent regions without fully displacing extractive dependence. Full article

Driven by the digital transformation of territorial spatial governance, traditional urban planning is irreversibly shifting towards a data-driven empirical paradigm. However, constrained by mimetic isomorphism and path dependence, many geography-based regional universities remain trapped in an educational dilemma: they overemphasize morphological representation while marginalizing quantitative decision-making, fostering a structural mismatch between graduate competencies and industry demands. To explore a systematic pathway out of this dilemma, this study chronicles a three-year pedagogical intervention utilizing a mixed-methods design with a historical control cohort (N = 275) within the urban planning program of Gansu Agricultural University—a regional institution situated in a less-developed frontier where territorial renewal demands macro-spatial synthesis over aesthetic forms. The intervention strategically redefined the graduate competency profile as “spatial data analysts”, constructing a pedagogical model comprising foundational algorithmic training, cross-disciplinary faculty collaboration, and real-world Project-Based Learning (PBL), coupled with a restructured, evidence-based evaluation system. Longitudinal tracking and quantitative analyses indicate a structural alignment with elevated educational efficacy. At the macro level of employment trajectories, the proportion of graduates securing knowledge-intensive data positions experienced a structural shift, rising from a baseline of 14.5% to 42.5%, reflecting an enhanced capacity to capitalize on expanding societal demands. At the meso level of practical competence, the award rate in high-level professional competitions increased by 35.4%. At the micro cognitive level, the new evaluation mechanism is associated with a successful redirection of students’ cognitive resources toward algorithmic logic and policy translation (p < 0.001) while highly significantly enhancing their self-efficacy in tackling complex, wicked engineering problems (p < 0.001). Rather than isolating pure causal mechanics, this study interprets these systemic gains as a contextual realignment of academic supply. It provides a context-sensitive, reproducible methodological reference for cultivating professional distinctiveness and reshaping the spatial planning education system in the digital era. Full article

The generation of reliable and up-to-date national land cover information is essential for environmental management, climate action, and territorial planning. In Colombia, the CORINE Land Cover Colombia (CLCC) framework has been the official reference for land cover monitoring since 2000, traditionally updated through expert-based Computer-Assisted PhotoInterpretation (CAPI) at a 1:100,000 scale. However, increasing demands for higher spatial resolution and more frequent temporal updates have made process optimization necessary, driving the incorporation of cloud-based processing and artificial intelligence (AI), including machine learning and deep learning algorithms. This study presents a semi-automated methodology for generating a new generation of harmonized CLCC-compatible raster land cover maps at a 1:50,000 scale—offering four times greater spatial detail than the official vector product—with the capacity for semi-automated annual updates. The approach combines legend harmonization from 55 to 23 classes, historical CORINE Land Cover (CLC) polygon-guided sample generation, spectral stability analysis, and regionalized classification across 190 homogeneous subregions, supported by a reproducible cloud-based architecture. National land cover maps were produced for 2020, 2022, and 2024 with thematic accuracies above 80% and Kappa coefficients up to 0.87, alongside change maps for the 2022–2024 period capturing key dynamics in agricultural frontier expansion, wetland variability, and urban expansion. The resulting products also provide structured inputs for expert-based CAPI workflows, supporting the continuous updating of the official 1:100,000 CLCC map. The results demonstrate the operational capacity of integrating AI, cloud computing, and expert knowledge to strengthen Colombia’s national land cover monitoring system. Full article

The expansion of Brazil’s agricultural frontier in Arco Norte has intensified environmental and socioeconomic concerns that may worsen under climate change. This study evaluates how climate-driven shifts in soybean suitability may reconfigure production patterns and affect logistical vulnerabilities. Three scenarios were modeled using the MaxEnt algorithm: a historical baseline (1970–2000) and two future projections (2041–2060) based on the CMIP6 climate pathways. The model integrated bioclimatic, physical, land-use and land-cover, and infrastructure variables. The results showed that soybean expansion was highly concentrated across all scenarios. Mato Grosso, Goiás, and Tocantins accounted for 82.7% to 85.5% of total projected expansion, while Bahia and Maranhão increased this share to more than 92% of total gains. Although consolidated areas absorbed most of the expansion, new frontiers still represented nearly 30% of the total gains. A logistical vulnerability index linked potential expansion areas to grain storage deficits and revealed critical conditions in the main soybean-producing municipalities of Mato Grosso. These findings indicate a growing mismatch between emerging production areas and existing logistics infrastructure, highlighting the need for coordinated investments in storage, intermodal transportation, and territorial planning. Full article

The platformization of urban space is opening new frontiers of capital accumulation, particularly through short-term rentals. Airbnb plays a central role in this process by commodifying housing in tourist destinations. Despite its rapid growth, research on Airbnb in Latin America—especially in small tourist cities—remains limited and largely focused on metropolitan contexts. This article addresses this gap with the objective of analyzing how platform-mediated short-term rentals reorient housing markets beyond traditional urban cores. It is hypothesized that Airbnb expands housing commodification by extending tourism-oriented uses into new residential areas and by redistributing returns unevenly across actors. Using a quantitative and geospatial approach, the results reveal a strong presence of Airbnb in rural and natural areas, from which the highest returns are extracted, as well as a high concentration of accommodation supply among professional hosts. These dynamics reconfigure housing use toward asset-based logics, posing challenges for housing security and social and territorial sustainability in small tourist cities. Full article

Tourism is a key driver of regional economies, but concerns are often raised about the effectiveness with which public resources are managed and translated into tangible outcomes. Despite its importance, research on the efficiency of public spending on tourism remains scarce and mostly confined to national scales. Therefore, this study examines how Apulian municipalities (Italy) convert public tourism expenditure into measurable tourism results, providing new evidence on the efficiency of local governance in this sector. The analysis applies a two-step econometric framework combining Stochastic Frontier Analysis (SFA) and Multiple Linear Regression to data from 247 municipalities over the period from 2020 to 2023. The results reveal generally low average efficiency levels, with only a few coastal destinations achieving high performance. The regression analysis identified key structural and territorial drivers of efficiency, including accommodation capacity, cultural production, coastal and environmental quality, and the presence of agritourism and campsites. The findings suggest that efficiency depends more on the ability of local administrations to coordinate tourism, cultural, and environmental policies than on the amount of spending. Overall, the study provides empirical evidence that an efficient allocation of tourism funds is crucial for achieving long-term sustainability goals, offering practical insights for designing more effective tourism policies. Full article

This paper delves into the process of evangelization undertaken by the Spanish in the northern frontier of New Spain during the 16th century, specifically targeting the nomadic Indigenous populations known as Chichimecas. Missionaries encountered unique challenges due to the absence of religious infrastructure, robust political authorities, and the nomadic lifestyle of these groups. To overcome these hurdles, the Spanish implemented a strategy that intertwined evangelization with colonization. The text highlights the significance of constructing physical infrastructure in these frontier territories, such as churches, schools, and dwellings, to facilitate the process of evangelization and colonial control. Moreover, it emphasizes the need to impose a social and political structure on these nomadic communities, transforming them into obedient colonial subjects. Full article

In recent years, many community-based conservancies (CBCs) led by non-governmental organizations (NGOs) have been established on land inhabited by pastoralists in Northern Kenya. Despite a growing body of research, little attention has been paid to the impacts on pastoralists’ climate change adaptation. We provide a deeper understanding by considering NGO-led community-based conservation (NGO-led CBC) as a new frontier of territorialization and adaptation to climate change and variability as a social-natural process. Based on an analysis of primary data collected in Samburu County, Kenya, we show that NGO-led CBC involves resource enclosures that aggravate conflicts over land rights and pastoralists’ vulnerability to climate change and variability by constraining their mobility. In relation, the legal and institutional environment promoted by NGO-led CBC leads to increased control over ecologically vibrant lands, which erodes pastoralists’ land tenure security and climate change adaptation. Although NGO-led CBC plays an important role in enhancing access to external finance and incentivizing diversification, governance mechanisms remain opaque and overshadow local institutions. Overall, we highlight the need for actors to carefully consider the implications of this conservation/development model for already hard-pressed land-dependent communities. Full article

Brazil has emerged as the world’s largest soybean producer and exporter in recent years. In the Brazilian Amazon Biome, the state of Pará has become a new agricultural frontier over the last two decades due to a significant increase in soybean cultivation throughout its territory. However, it is essential to understand the associated effects on the environment at every point in the supply chain. This research aims to measure the effects on the environment of the soybean supply chain of two production poles utilising openLCA software and the life cycle assessment (LCA) methodology in the northeast (Paragominas) and south (Redenção) of the state of Pará in Brazil. In addition, we determine which is the most efficient route between the shipment port and the ultimate destination. The Recipe Midpoint (H) and Intergovernmental Panel on Climate Change (IPCC) methods of environmental impact categories were used in accordance with the cradle-to-grave scope. The BRLUC regionalised model (v1.3) was used to quantify land use change (LUC). According to the observed results, LUC was primarily responsible (between 3.8 and 32.69 tCO₂ Eq·ha⁻¹·year⁻¹) for the global warming potential (GWP) of the soybean supply chain when rainforest-occupied land was converted into cropland. The soybean harvest in the Redenção pole is better loaded through the port of Itaqui (TEGRAM), which is in São Luis (state of Maranhão), due to the use of multiple modes of transport (lorry + train), allowing for better logistical performance and less impact on the environment, despite the longest distance (road + railway = 1306 km). Due to the short road distance (approximately 350 km) and consequently lower environmental impact, soybean harvested in the Paragominas pole is better loaded through the ports around Barcarena in the state of Pará. Full article

Bioprospecting of novel antibiotics has been the conventional norm of research fostered by researchers worldwide to combat drug resistance. With the exhaustion of incessant leads, the search for new chemical entities moves into uncharted territories such as the deep sea. The deep sea is a furthermost ecosystem with much untapped biodiversity thriving under extreme conditions. Accordingly, it also encompasses a vast pool of ancient natural products. Actinobacteria are frequently regarded as the bacteria of research interest due to their inherent antibiotic-producing capabilities. These interesting groups of bacteria occupy diverse ecological habitats including a multitude of different deep-sea habitats. In this review, we provide a recent update on the novel species and compounds of actinomycetes from the deep-sea environments within a period of 2016–2022. Within this period, a total of 24 new species of actinomycetes were discovered and characterized as well as 101 new compounds of various biological activities. The microbial communities of various deep-sea ecosystems are the emerging frontiers of bioprospecting. Full article

With growing demands of decision making in the current era, the impact of the drivers behind individuals’ preferences and institutional strategies becomes prominent. Coined in 2008, nudge is used to describe incentives for individuals’ choices with foreseeable outcomes but without exclusion of alternative choices or reliance on financial stimuli. Consequently, nudge and its application in real-world situations led to a prosperous surge of studies in multiple disciplines. However, we are still facing a dearth of in-depth understanding of the status quo and future directions of research on nudge in a comprehensive fashion. To address the gap in knowledge, the present study adopted a bibliometric analysis of the existing literature related to the investigation and application of nudge by analyzing 1706 publications retrieved from Web of Science. The results indicated that (a) being a relatively newly developed theory, interest in nudge in academia has expanded both in volume and disciplines, with Western scholars and behavioral economists as the backbones; (b) future studies in nudge-related fields are expected to consolidate its current frontiers in individual behaviors while shedding light on new territories such as the digitalized environment. By incorporating state-of-the-art technologies to investigate extant research, the present study would be pivotal for the holistic understanding of the studies on nudge in recent years. Nevertheless, the inclusiveness and comprehensiveness of the review were limited by the size of the selected literature. Full article

To understand the research trends and areas of focus of seed dispersal, a bibliometric study based on the Science Citation Index Expanded (SCI-E) and Social Science Citation Index (SSCI) databases of the Web of Science Core Collection (WoSCC) was performed. With the help of CiteSpace visualization software, a systematic analysis was carried out on 2911 publications from various countries in the field of seed dispersal. The activity index (AI) and attraction index (AAI) were used to evaluate the research effort and academic impact of different countries/territories in this field, and the global research progress and dynamic changes in research on seed dispersal were discussed. The number of publications on seed dispersal has increased rapidly since 1990, and research on seed dispersal is in the growth stage and has great potential. Ecology was the journal with the highest impact in this field, and ecology was the most popular subject category among the studies analyzed. The most productive authors in the field of seed dispersal are from Spain, and the most productive institution is in the USA. A keyword burst analysis showed that the new research frontiers were mainly concentrated on seed body size and the ecological network of seed dispersal. An in-depth analysis of seed dispersal research indicated that the increasing development of mathematical models related to seed dispersal creates an opportunity to study the processes of seed dispersal and their consequences. Full article

The adoption and ratification of new conventions and treaties under international law designed to protect both Indigenous peoples and the rights of nature have resulted in successful rulings by local, federal, and regional courts in favor of Indigenous groups engaged in class-action suits against their governments. In 2012 and 2019, respectively, the Sarayaku Kichwa and the Huaorani and Cofán peoples of the Ecuadorian Amazon won cases against the Ecuadorian government for its lack of consultation on planned oil exploration. Such cases upholding the correct application of the right to Free, Prior, and Informed Consent (FPIC) under international treaties are rare; more often, Western judicial systems and environmental impact assessments have been used to serve corporate interests, as exemplified by the Aguinda v. Texaco case initiated in 1993 and the planned operations of Andes Petroleum in Orellana province 2019–2020, respectively. Indigenous and non-Western epistemologies tend to be incompatible with state-driven liberal secular capitalism—hence Indigenous efforts to prevent land seizures and the expansion of the extractive frontier into Indigenous territories in the Amazon rainforest have been undermined by the imperatives of modernization/developmentalism. These same forces have stimulated demand for gold, the legal and illegal mining of which, along the Napo river, have caused the contamination of the waters of the Amazon, threatening the health of Indigenous and non-indigenous riverine communities. Full article

Currently, a significant portion (~50%) of global warming emissions, such as CO₂, are related to energy production and transportation. As most energy usage will be electrical (as well as transportation), the efficient management of electrical power is thus central to achieve the XXI century climatic goals. Ultra-wide bandgap (UWBG) semiconductors are at the very frontier of electronics for energy management or energy electronics. A new generation of UWBG semiconductors will open new territories for higher power rated power electronics and solar-blind deeper ultraviolet optoelectronics. Gallium oxide—Ga₂O₃ (4.5–4.9 eV), has recently emerged pushing the limits set by more conventional WBG (~3 eV) materials, such as SiC and GaN, as well as for transparent conducting oxides (TCO), such asIn₂O₃, ZnO and SnO₂, to name a few. Indeed, Ga₂O₃ as the first oxide used as a semiconductor for power electronics, has sparked an interest in oxide semiconductors to be investigated (oxides represent the largest family of UWBG). Among these new power electronic materials, Al_xGa_1-xO₃ may provide high-power heterostructure electronic and photonic devices at bandgaps far beyond all materials available today (~8 eV) or ZnGa₂O₄ (~5 eV), enabling spinel bipolar energy electronics for the first time ever. Here, we review the state-of-the-art and prospects of some ultra-wide bandgap oxide semiconductor arising technologies as promising innovative material solutions towards a sustainable zero emission society. Full article

Independent art spaces not only play an important role in exploring frontiers in the visual arts but are often also pioneers discovering new artistic territories within cities. Due to their subordinate position in the field of art, they often occupy marginal spaces in terms of their location within the urban structure and/or in terms of their physical visibility within the built environment. Their location outside the established artistic cores reflects, at the same time, their weaker economic standing and wish to distinguish themselves from previous generations of cultural producers. Post-socialist cities offer the opportunity to study the spatial history of independent art spaces under different political and economic systems. In this paper, I have used a detailed database of private art galleries in the period from the 1970s to 2019 and content analysis of press and internet texts about them to uncover the stages of development of independent art venues in Krakow, Poland, an example of a post-socialist city with a rich cultural heritage. They included periods of dispersion within the wider inner-city followed by cycles of concentration in rather neglected quarters that were emerging as epicentres of alternative artistic life only to dissipate due to unfavourable economic conditions and the appearance of the next generations of artists who wanted to mark their distinctive presence both in the art world and in the urban space. I also discuss how independent art spaces were using their usually marginal, temporary and fluid sites in their artistic practices and the accumulation of symbolic capital in the field of art. Full article