Suggested Topics within your search.
Suggested Topics within your search.
-
4401
Alternative graphemics. Aztec writing system as a case study towards an integrated, digitalised model of non-typographic graphemics
Published 2024-06-01“…Aztec pictographic writing conveys semantic (and linguistic) contents through conventional patterns of units. We argue that relevant visual values are ordered in subsets (topological, spatial and logical). …”
Get full text
Article -
4402
The Greenland Ice Sheet at the peak of warming during the previous Interglacial
Published 2015-03-01“…This wide range is explained by the sensitivity of GrIS models to the imposed climatic conditions and to poor knowledge of the LIG climate itself in terms of the magnitude and precise timing of the maximum warming, as well as in terms of spatial and annual patterns. To partially circumvent these uncertainties we made use of the newest temperature record over the Central Greenland reconstructed from the isotopic composition of the recently obtained NEEM ice core containing undisturbed LIG segment to build the climatic forcing of the model. …”
Get full text
Article -
4403
X-FASNet: cross-scale feature-aware with self-attention network for cognitive decline assessment in Alzheimer's disease
Published 2025-08-01“…The proposed architecture implements a dual-pathway multi-scale feature extraction approach to identify discriminative neuroanatomical patterns across various spatial resolutions, while integrating a novel cross-scale feature-aware self-attention module that enhances inter-scale information exchange and captures long-range dependencies. …”
Get full text
Article -
4404
Upper Elevational Limit of Vegetation in the Himalayas Identified from Landsat Images
Published 2024-12-01“…Climate change has caused substantial shifts in species’ ranges and vegetation distributions in local areas of the Himalayas. However, the spatial patterns and dynamic changes of the vegetation lines in the Himalayas remain poorly understood due to the lack of comprehensive vegetation line dataset. …”
Get full text
Article -
4405
Model morphing supported large scale crop type mapping: A case stuy of cotton mapping in Xinjiang, China
Published 2025-07-01“…To address these challenges, this paper constructs a time-continuous sequence model that captures the unique feature pattern between the target-crop and non-target crops (referred to as the knowledge model). …”
Get full text
Article -
4406
Ordinal METAR Cloud Cover Classification in Sentinel-2 Satellite Data
Published 2025-01-01“…Accurate cloud cover assessment is crucial in several fields, such as weather forecasting, climate science, agriculture, or energy system planning, precipitation pattern forecasting and aiding in early detection of extreme weather events. …”
Get full text
Article -
4407
Examining the spatiotemporal dynamics of urban heat island and its impact on air pollution in Thailand
Published 2025-06-01“…The relationship between UHI and air pollutants remains uncertain, influenced by factors such as location, spatial distribution, and the type of pollutants. …”
Get full text
Article -
4408
Integrated distribution modeling resolves asynchrony between bat population impacts and occupancy trends through latent abundance
Published 2025-05-01“…Relative abundance and occupancy were linked with multi-scale predictors, revealing clear patterns of population declines, but with important differences in spatial trends (abundance: corresponded with white-nose syndrome impacts, occupancy: at the range periphery) and overall severity (abundance: -74.8%, 95% CRI: -79.7% to -69.3%; occupancy: -35.5%, 95% CRI: -41.1% to -30.2%). …”
Get full text
Article -
4409
Time Series Data Provide Insights into the Evolution and Abundance of One of the Most Abundant Viruses in the Marine Virosphere: The Uncultured Pelagiphages vSAG 37-F6
Published 2024-10-01“…We explored the temporal dynamics of vSAG 37-F6, assessing periodic fluctuations in abundance and evolutionary patterns using long- and short-term data series. In the long-term series (7 years), metagenomics showed negative selection acting on all viral genes, with a highly conserved overall diversity over time composed of a pool of yearly emergent, highly similar novel strains that exhibited a seasonal abundance pattern with two peaks during winter and fall and a decrease in months with higher UV radiation. …”
Get full text
Article -
4410
Study on the evolution law of acoustic emission time series characteristics of coal-rock assemblage under true triaxial conditions
Published 2025-05-01“…IntroductionThis study aims to investigate the fractal characteristics of acoustic emission (AE) signals during coal-rock rupture and their predictive significance for impact dynamic hazards.MethodsTrue triaxial loading/unloading tests were conducted on five coal-rock composites with varying coal-thickness ratios using the TRW-3000 system, with AE signals analyzed to correlate stress evolution and temporal-spatial fractal features.ResultsKey findings reveal that: 1) AE parameters exhibit stress-dependent behavior, growing slowly initially, stabilizing during stress-holding, and surging exponentially before peak stress, with ∼90% of cumulative energy released pre-destabilization; 2) Ring counts follow an Λ-type trend against absolute energy, while coal-thickness proportion induces a mirror-image N-type pattern in AE parameters; 3) High-energy/high-ringcount AE events cluster spatiotemporally before failure, with clear time sequence precursors—short-duration ground sounds and consecutive rises in energy/frequency serve as critical early-warning indicators, whereas isolated signals lack hazard relevance.DiscussionThese fractal patterns and precursor thresholds enhance real-time monitoring and risk assessment frameworks, offering actionable strategies for mitigating coal-rock dynamic disasters in underground mining.…”
Get full text
Article -
4411
Comparative Space Use of Sympatric Sharks at a Remote Island in the South Pacific Ocean
Published 2025-06-01“…Tiger sharks, consisting primarily of mature females, were seasonally present at Norfolk Island with peak residency during the Austral summer (November to April). A similar pattern existed for juvenile sandbar sharks, although departures from the island were not as common. …”
Get full text
Article -
4412
Using 3D observations with high spatio-temporal resolution to calibrate and evaluate a process-focused cellular automaton model of soil erosion by water
Published 2025-06-01“…</p> <p>These results underscore the need for more nuanced evaluation of erosion models, e.g. by incorporating spatial-pattern comparison techniques to provide a deeper understanding of the model's capabilities. …”
Get full text
Article -
4413
Comparative effects of arithmetic, speech, and motor dual-task walking on gait in stroke survivors: a cross-sectional study
Published 2025-05-01“…BackgroundThe application of dual-task walking paradigms for gait assessment in stroke patients is critical, where varying concurrent tasks may elicit distinct gait patterns of dual-task interference. This study assessed the acute effects of different types of dual tasks on gait in stroke patients during task performance, informing occupational, and physical therapists about care recommendations to prevent patients from falling and improve their balance function in daily life.MethodsA total of 19 stroke patients (52.7 ± 6.9 years old) performed the walking-only and dual-task walking (motor, arithmetic and speech) task test while a 3D motion capture system measured the gait parameters (the gait spatial-temporal parameters, sagittal angle of lower-limb joints, gait parameter variability and dual-task cost). …”
Get full text
Article -
4414
Genomic profiling of a six-generation patrilineal family of the Ming-Qing dynasties in China
Published 2025-07-01“…Summary: Family cemeteries from historical periods often follow structured burial patterns, but identifying these arrangements is challenging due to limited written records and ambiguities in archaeological interpretation. …”
Get full text
Article -
4415
Towards precision agriculture tea leaf disease detection using CNNs and image processing
Published 2025-05-01“…This stage features a dropout layer for regularization, a dense layer with 512 units for further pattern learning, and a final dense layer with 8 units and a soft max activation function, producing a probability distribution across different disease classes. …”
Get full text
Article -
4416
Spatiotemporal heterogeneity of the ecological civilization in the Yangtze River economic belt
Published 2025-08-01“…Although prior studies have assessed spatiotemporal differentiation and subsystem coordination in the ecological civilization development process in the YREB, revealing regional trends, municipal-scale dynamics and heterogeneity in development patterns remain underexplored. In this study, 118 YREB cities are explored, and a novel weight calculation method that combines a genetic algorithm with a dynamic deviation maximization model (GA-DM) is introduced to ensure objectivity. …”
Get full text
Article -
4417
Coupled Assessment of Land Use Changes and Ecological Benefits Using Multi-Source Remote Sensing Data
Published 2025-06-01“…By integrating the four-quadrant model and the coupling degree model, we developed a remote sensing ecological index (RSEI)–ecological service index (ESI) coupling evaluation framework to assess the spatiotemporal evolution patterns of changes in ecological benefits in the region. …”
Get full text
Article -
4418
Species and Phylogenetic Diversity of Woody Plants Shift With the Elevational Gradient in Subtropical Forests in South China
Published 2025-07-01“…Elevation, soil nitrate nitrogen content, and slope collectively constituted the key environmental factors driving the spatial patterns of species diversity. Meanwhile, soil nitrate nitrogen and ammonium nitrogen contents had a decisive influence on phylogenetic diversity. …”
Get full text
Article -
4419
Quantifying Urban Vitality in Guangzhou Through Multi-Source Data: A Comprehensive Analysis of Land Use Change, Streetscape Elements, POI Distribution, and Smartphone-GPS Data
Published 2025-06-01“…The results reveal the spatial distribution patterns of urban vitality and the varying significance of different determinants, providing data-driven insights and policy implications for urban planning and development.…”
Get full text
Article -
4420
Change of human settlement resilience and its obstacle degree in resource-based cities in the Yellow River Basin
Published 2024-10-01“…The growth-type, mature-type, and regeneration-type cities all showed an agglomeration of high resilience cities, while the decline-type cities with high resilience level tended to be dispersed. (2) From the perspective of spatial evolution, the resilience level of urban human settlements presents a spatial pattern of “periphery is higher than center, downstream is higher than upstream. …”
Get full text
Article