Search Results (4,395)

Long-term wind speed changes over the Yangtze River waterway have critical implications for inland shipping efficiency, emission dispersion, and renewable energy potential. This study utilizes a high-resolution 5 km gridded reanalysis dataset spanning 1979–2018 to conduct a comprehensive spatiotemporal analysis of surface wind climatology, variability, and trends along China’s primary inland waterway. A pivotal regime shift was identified around 2000, marking a transition from terrestrial stilling to a recovery phase characterized by wind speed intensification. Multiple change-point detection algorithms consistently identify 2000 as a pivotal turning point, marking a transition from the late 20th century “terrestrial stilling” to a recovery phase characterized by wind speed intensification. Post-2000 trends reveal pronounced spatial heterogeneity: the upstream section exhibits sustained strengthening (+0.02 m/s per decade, p = 0.03), the midstream shows weak or non-significant trends with localized afternoon stilling in complex terrain (−0.08 m/s per decade), while the downstream coastal zone demonstrates robust intensification exceeding +0.10 m/s per decade during spring–autumn daytime hours. Three distinct wind regimes emerge along the 3000 km corridor: a high-energy maritime-influenced downstream sector (annual means > 3.9 m/s, diurnal peaks > 6.0 m/s) dominated by sea breeze circulation, a transitional midstream zone (2.3–2.7 m/s) exhibiting bimodal spatial structure and unique summer-afternoon thermal enhancement, and a topographically suppressed upstream region (<2.0 m/s) punctuated by pronounced channeling effects through the Three Gorges constriction. Critically, the observed recovery contradicts widespread basin greening (97.9% of points showing significant positive NDVI trends), which theoretically should enhance surface roughness and suppress wind speeds. Correlation analysis reveals that wind variability is systematically controlled by large-scale atmospheric circulation patterns, including the Northern Hemisphere Polar Vortex (r ≈ 0.35), Western Pacific Subtropical High (r ≈ 0.38), and East Asian monsoon systems (r > 0.60), with distinct seasonal phase-locking between baroclinic spring dynamics and monsoon-thermal summer forcing. These findings establish a comprehensive, fine-scale climatological baseline essential for optimizing pollutant dispersion modeling, and evaluating wind-assisted propulsion feasibility to support shipping decarbonization goals along the Yangtze Waterway. Full article

Observed rainfall erosivity risk (ORE) index is defined as the erosivity risk in the event of extreme rainfall events. ORE measures the kinetic energy of raindrops generated during a period of maximum precipitation intensity with the formula ORE = (ED · TEI)/10, where ED = erosivity density, TEI = total erosivity index, and ORE is measured in MJ mm ha^‒1 h^‒1 yr^‒1. The goal of this study is to model ORE, estimate its spatiotemporal variability, and predict (PRE) and simulate ORE for the state of Sinaloa (1969–2018). Five indices of rainfall erosivity were calculated: the modified Fournier index, precipitation concentration index, ED, TEI, and rainfall erosivity factor. The nonparametric trend in ORE was calculated. Using multiple nonlinear regressions (MNR), PRE (dependent variable) was calculated as a function of cumulative annual, annual average, seasonal average, and seasonal cumulative rainfall (independent variables). To simulate PRE, cumulative distribution functions, adjusted return periods (ARPs), and the 99th percentile were used. ORE ranged from 51.39 MJ mm ha⁻¹ h⁻¹ yr⁻¹ in 1970 (Culiacán) to 92679.40 MJ mm ha⁻¹ h⁻¹ yr⁻¹ in 1998 (Sta. C. de Alaya). The only year that had very high ORE at all nine stations was 1998. The only significant trend was ORE = 34.64 MJ mm ha⁻¹ h⁻¹ yr⁻¹ (Culiacán). The nine PRE models were significantly predictive (Spearman correlation > 0.280). Guatenipa, Rosario, and Siqueros registered very high PRE, since one to eight extreme erosivity events per century are predicted on average. A new methodology is proposed for calculating ORE and PRE, which can be used to develop alternatives for managing and protecting agricultural land in the state considered “the breadbasket of Mexico”. Full article

The Spanish conquest of the Inca empire in the early 16th century stands as one of the most striking examples of asymmetric historical collapse. In this paper, a simplified mathematical formulation is developed being inspired by Lotka–Volterra dynamics to describe, in a stylized quantitative manner, the interactions between the Inca state and the invading Spanish forces. The model is not intended to explain the historical events in a causal or predictive sense, but rather to capture and represent key mechanisms commonly identified in historical analyses. These include the demographic and political weakening caused by smallpox epidemics prior to direct contact, the internal fragmentation produced by the civil war and the introduction of external shocks such as the capture of Atahualpa and the fall of Cusco. Although intentionally minimalistic, the framework provides a dynamical illustration of how combined internal and external pressures can destabilize a complex society. This descriptive perspective situates the Inca collapse within the broader conceptual language of complex systems, emphasizing how nonlinear interactions, feedback and structural asymmetry shape trajectories of resilience and failure. Full article

Antimicrobials are common drugs used to treat and prevent infectious diseases in plants, animals, and humans. Since their discovery in the mid-20th century, their use has dramatically increased for the benefit of humanity, and also for animal care. However, antimicrobial resistance soon appeared, which, according to the WHO, will limit or impede their use at the horizon of 2050. Indeed, antimicrobial resistance (AMR), which is a natural phenomenon in bacteria increased dramatically over the last 3 decades mainly due to the overuse and misuse of antibiotics in humans, animals, and plants. Apart from affecting human health, drug-resistant diseases also adversely affect plant and animal health, reduce agricultural productivity, and threaten food security. AMR affects all countries, regardless of economic status, and imposes high costs on health systems and national economies. Therefore, antimicrobial resistance should be studied and analyzed under the One Health paradigm. In mind of the One Health paradigm, to reduce and overcome AMR, we must take at least 3 complementary and integrated actions: (i) monitoring the resistome; (ii) developing protective strategies against antibiotic resistance; (iii) taking curative actions by designing new and original treatments. Moreover, the three actions must be conducted simultaneously due to the continuous adaptation of bacteria. Full article

Understanding how global climate drivers manifest at regional scales is critical for designing targeted adaptation strategies, particularly in vulnerable mountainous countries. This study provides an integrated assessment of atmospheric CO₂ concentrations, surface temperature, and precipitation trends at both global and Armenian levels from the early 20th century to 2024. Using long-term observational datasets and ordinary least squares regression models with HAC-robust errors, this study quantifies the magnitude and statistical significance of historical climate shifts. Results confirm pronounced global warming (+0.021 °C/year) alongside a moderate rise in global precipitation (+1.13 mm/year). Armenia, however, exhibits substantially accelerated warming (+0.052 °C/year) coupled with a non-significant and spatially heterogeneous precipitation trend, including notable declines in humid regions. CO₂ emissions per capita strongly predict temperature change both globally (0.59 °C/ton) and, even more prominently, in Armenia (1.33 °C/ton), indicating heightened regional climate sensitivity. These findings align closely with Armenia’s Fourth National Communication to the UNFCCC, reinforcing the robustness of the analysis. By revealing how global climate forcings translate into region-specific outcomes—and by discussing the emerging thermal contribution of digital infrastructure—this study underscores the urgency of localized climate adaptation, water resource planning, and agricultural resilience measures. Full article

In this study, we investigate the Suvarṇabhūmi area, corresponding to central–southern Mainland Southeast Asia. We test the hypothesis that this region, located to the south of the Himalayan foothills, can be characterised as a convergence zone in which diverse entities involving humans, animals, and artefacts have significantly diverged from their related counterparts outside the area. We argue that this process of convergence was facilitated by the Maritime Silk Road trade networks, which were particularly active between the 3rd century BCE and the 9th century CE. Comparative data are derived from multiple scientific disciplines, including linguistic typology, onomastics, epigraphy, archaeology, and evolutionary biology. This includes typological features of language, toponyms, inscriptions, glass bead chemistry and related material culture, and phylogenetic data from patterns of endemism to illustrate parallel convergence scenarios observed for each data type. The results reveal recurring patterns of convergence. Linguistic, technological, and biological entities tend to diverge from their original forms and realign with predominant regional types when entering the Suvarṇabhūmi area. The spread of Indic and Sinitic linguistic and cultural elements, the adaptation and development of Brāhmī scripts into distinct local forms, the secondary manufacturing of glass beads, and unique genetic lineages in mammals, amphibians, reptiles, fish, and plants all point to the region’s role as a dynamic interaction sphere. We argue that Suvarṇabhūmi functions as an ecological system, in which trajectories of convergence are notable across a number of individual aspects of cultural and biological diversity. Altogether, these components have contributed to shaping the region’s distinctive natural and cultural history. Full article

This paper offers the first long-range account of the grammaticalization of the Vietnamese perception verb thấy ‘see’ from the 13th to the mid-20th century. Using a balanced diachronic corpus of ten representative texts (1345 tokens), we combine frequency profiling with constructional analysis to trace thấy’s shift from a literal visual predicate to a high-frequency resource for epistemic stance, evidentiality, evaluation, and discourse management. The results reveal a robust progression aligned with the sensory hierarchy and canonical event-schema pathways: early literal uses and multimodal bundling (13–14th c.) provide bridging contexts; the 15th century introduces raising (thấy + VP/Adj) and clausal complementation (thấy (rằng/là) + CP); the 16–17th centuries expand resultative perception complexes (e.g., xem/chiêm bao/nghe + thấy) and reportative frames; the 18th century brings evaluative and speaker-anchored uses (chúng tôi thấy); the 19–20th centuries stabilize discourse-pivot (thấy… thì…), epistemic (thấy cần phải…), and exclamative/affective (thấy ghét) readings. We argue that Vietnamese clause-linking options and optional complementizers facilitate constructionalization via loose complementation and subjectification, while retaining perceptual residues that motivate evidential and interactional meanings. The study contributes: (i) a comprehensive diachrony of thấy; (ii) diagnostics separating perceptual, experiential, propositional, and discourse layers; and (iii) a case study bearing on the relationship between grammaticalization and constructional change in an isolating language. Full article

Three painted valuable wood sculptures from conventual collections in Apulia (Southern Italy), made between the beginning of the 17th century and the first half of the 18th century, were studied to shed light on the pictorial materials and techniques of the Neapolitan Baroque sculpture in Southern Italy. A multi-analytical approach was implemented using integrated micro-invasive techniques, including polarized light microscopy (PLM) in ultraviolet (UV) and visible (VIS) light, scanning electron microscopy coupled with energy dispersive spectroscopy (SEM-EDS), Fourier-Transform Infrared (FTIR) spectroscopy, and pyrolysis–gas chromatography/high-resolution mass spectrometry (Py-GC/HRMS). The stratigraphic sequences were microscopically identified, and the pictorial layers were discriminated on the basis of optical features, elemental compositions, and mapping. Organic components were detected by FTIR as lipids and proteinaceous compounds for binders, while terpenic resins were detected as varnishes. Accordingly, PY-GC/HRMS identified siccative oils, animal glue, egg, and colophony. The results allowed the identification of the painting techniques used for the pictorial films and the ground preparation layers and supported the distinction between original and repainting layers. The results of this multi-analytical approach provide insights into Baroque wooden sculpture in Southern Italy and offers information to support restorers in conservation works. Full article

Sarcoidosis is an immune-mediated granulomatous disease whose etiology has remained unresolved despite more than a century of investigation. Accumulating microbiological and immunopathological evidence now implicates Cutibacterium acnes—a ubiquitous indigenous commensal—as the most consistent antigenic trigger. Its frequent detection within sarcoid granulomas by quantitative PCR, in situ hybridization, and species-specific immunohistochemistry suggests latent intracellular persistence and the potential for endogenous reactivation. To explain how a noncontagious commensal can drive granulomatous inflammation, this review proposes the concept of Endogenous Hypersensitivity Infection (EHI). EHI describes a host-centered process in which reactivation of latent intracellular microbes leads to the breakdown of immune tolerance and provokes Th1-dominant hypersensitivity responses in genetically and immunologically susceptible individuals. This framework bridges the traditional divide between infection and autoimmunity, reframing sarcoidosis as a disorder of disrupted host–commensal homeostasis rather than a classical infectious or autoimmune disease. By integrating microbiological, immunological, and pathological evidence, this review synthesizes the mechanistic basis of EHI and outlines how tolerance failure to C. acnes can account for the paradoxical clinical behavior of sarcoidosis. The EHI paradigm further provides a unifying conceptual lens through which related chronic inflammatory disorders—including Crohn’s disease, chronic rhinosinusitis, and atopic dermatitis—may be reinterpreted. Full article

The city of Aigion, located in the northwestern Peloponnese, flourished as an important city-state especially during the Hellenistic period (323–32 BC). This is evidenced by abundant archaeological remains, including kilns, waste pits, and pottery workshop facilities. Among the ceramic goods produced by local workshops are various types of stamped and unstamped transport amphorae. Also, recent discoveries, approximately 15 km southeast in the village of Trapeza Diakopto, have uncovered a distinctive type of amphora—identified as Type B of the Corinthian–Corcyraean or Ionian–Adriatic tradition—from destruction layers dated to the 4th and early 3rd centuries BC. This study examines the technological attributes and provenance of transport amphorae from both sites through integrated petrographic and mineralogical analyses, drawing on 27 samples from Aigion and 17 from Trapeza. Petrographic analysis, focusing on compositional and textural characteristics, identified three distinct ceramic recipes (petrographic fabric groups AIG-1, AIG-2, and AIG-3) associated with amphora types I, II, and III at Aigion. Samples from Trapeza were grouped into two main fabric categories (TR1 and TR2a/b), along with a notable number of singletons. Moreover, petrographic observations combined with X-ray powder diffraction (XRPD) analysis provided insights into the firing technologies used. The results indicate that many amphorae from both Aigion and Trapeza were fired at temperatures below 850 °C, while others were fired at higher temperatures, ranging from approximately 900 °C to 1100 °C. The combined petrographic and mineralogical evidence illuminates local ceramic production techniques and interregional exchange patterns, contributing to a broader understanding of amphora manufacture and distribution in the northwestern Peloponnese from the Late Classical to the Late Hellenistic period. Full article

Buddhism has long maintained a fine tradition of establishing and preserving a hyper-stable institutional order. Historically, the Vinaya served as the institutional literature for the monasteries, but it gradually evolved into a sacred symbol of the public identity of the monks and became an object of scholastic study. Subsequently, as part of the internal monastic system, the rules governing monks transferred from being overseen by the Three Monastic Supervisors 三綱制—comprising an Elder (Sthavira), an Administrator (Vihārasvāmin), and a Discipline Master (Karmadāna)—to the Conglin system, a major innovation of Chinese Buddhism. However, the Conglin system, with more than a thousand years of history, had not experienced any major reforms. At the same time, it has also become an institutional culture within Chinese Buddhism, imbued with sacred symbolic significance. The excessive concentration of power inherent in the Conglin system, along with the lack of oversight over certain office-holding monks, represents a notable flaw within this system. The social environment of the time compelled Chinese Buddhism to adjust and reform its internal institutional construction. Only by developing institutions that align with both the vinaya and secular law; while embodying the Buddhist ideals of equality and fairness, could Chinese Buddhism remain in harmony with its era. Full article

Since the mid-20th century, the landscapes of Mediterranean mountain regions have undergone a significant transformation, linked to the socioeconomic changes caused by the opening up of these regions to the market economy. This prompted a rural exodus, the abandoning of farmland and the reduction in livestock, so activating various reforestation processes. In parallel, the “green revolution” promoted the modernization of agrifood systems, so contributing to the decline of traditional ways of farming in mountain areas. The farms on which traditional polyculture and agroforestry are still carried out today are important agrobiodiversity reserves. In this research, we monitor the dynamics of land use and cover and the changes in the structure of the agrifood landscapes on the southern slopes of Sierra Nevada (Spain) by comparing maps from 1956, 1984, 2007 and 2020. The results reveal a sharp decline in cultivated land, from 39.19% to 21.54%, and an expansion of natural covers, especially Mediterranean forest, driven by the abandonment of farmland and reforestation policies. Today, the landscape is composed of a more fragmented, less cohesive mosaic of agroecosystems. These changes indicate a reduction in agrobiodiversity at a landscape level, in line with the tendency observed at farm level in the study area. Full article

This study investigates the integration of eco-design strategies in the energy renovation of mid-20th century heritage buildings, using the Antonio Rueda Residential Complex in Valencia (Spain) as a representative case study. The research addresses the reconciliation between heritage conservation and contemporary environmental objectives by evaluating the building in terms of its construction and current performance. The multidisciplinary working methodology consists of creating a BIM-based workflow (Revit + Autodesk Insight) to generate an analytical energy model, quantify Operational Carbon, and evaluate the impact of lighting inside the homes to simulate the impacts of the intervention strategies. This is justified as existing buildings are energy intensive and heavily dependent on fossil fuels, largely due to insufficient façade insulation, obsolete window systems, and limited solar protection. Nine refurbishment scenarios were developed, ranging from reversible improvements to the building envelope to volumetric extensions inspired by the principles of eco-design and circularity. Comparative simulations suggest that specific improvements could significantly reduce energy demand while remaining compatible with the architectural identity of the complex. Full article

Studies on colonial grid urban planning often use the later examples of cities founded in peninsular Spain towards the end of the 15th century as a basis for understanding the principles applied in new foundations in the Americas. This study proposes that the city of San Cristóbal de la Laguna (1496) functioned as a final urban-planning experiment, an intermediate point in the Canary Islands that enriched the experiences of early colonial urban planning. This first model of a city-territory, which lacked a defensive character due to its insularity, developed a grid adapted to the terrain, organising a new social order inspired by the religious doctrine of the time, in which religious architecture, mainly convents as well as churches, hermitages and hospitals, played a central role in the origin and consolidation of the city’s urban layout. By comparing this case study with the first American examples, Santo Domingo (1502), the first island city, and Panama Viejo (1519), the first city on the mainland, which are all UNESCO World Heritage Sites, we are able to verify the influence of this intermediate urban planning model on the evolutionary process of the early colonial model and confirm the role of convent foundations as structural elements shaping the territory. Full article

The virtualization of museums is in a phase of active development, with institutions seeking relevant and original forms. At the same time, the number of projects dedicated to the reconstruction of past museum expositions is not as substantial as one might hope. How can we accurately reconstruct a museum’s appearance and exhibitions with limited source materials? How can the reconstruction process be consistent with the historical image of the museum and its digital strategy? The scientific study of the appearance of the museum, the preparation of digital content, and the artistic solution of the image in the virtual environment were carried out by the employees of the Kunstkamera’s Laboratory of museum technologies. The issues of museum bureaucracy, the preservation of objects, information, and the integrity of the approach to the formation of digital funds of the museum are solved through the implementation of the project within the museum and the involvement of specialists from outside for the final assembly of VR. The concept of a universe within a single room, which gave rise to a universal museum like the Kunstkamera, has evolved into the creation of the Laboratory of Museum Technologies, enabling the development of complex technological projects within the museum itself. Full article