Results 41 to 50 of about 3,400 (188)

Research progress and current status of dynamic wave propagation characteristics in rock mass: A review

Deep Underground Science and Engineering, EarlyView.
This review elucidates the velocity–dispersion–attenuation coupling mechanisms of wave propagation in rock masses, compares six representative models, and reveals how pressure, temperature, mineral composition, and anisotropy jointly control dynamic responses in complex geological media.
Jiajun Shu, Tao Li, Ruiqi Yuan, Yue Li, Bingni Wu, Bo Liu, Zhengding Deng, Galindo Rubén, Fausto Molina‐Gómez   +8 more
wiley   +1 more source

Dietary partitioning mediates species coexistence in the high seas area of northwest Pacific

Ecography, EarlyView.
Niche partitioning, manifesting along various axes of the ecological niche, is a fundamental mechanism mediating species coexistence in a system. However, the emergence of many species in marine ecosystems would face considerable constraints in achieving coexistence through spatiotemporal differentiation mechanisms under the framework of niche ...
Na Zang, Bilin Liu, Wenjun Zheng, Yushuang Luo, André E. Punt, Xinjun Chen, Dongming Lin   +6 more
wiley   +1 more source

Inner core static tilt inferred from intradecadal oscillation in the Earth’s rotation

Nature Communications, 2023
The presence of a static tilt between the inner core and mantle is an ongoing discussion encompassing the geodynamic state of the inner core. Here, we confirm an approximate 8.5 yr signal in polar motion is the inner core wobble (ICW), and find that the ...
Yachong An, Hao Ding, Zhifeng Chen, Wenbin Shen, Weiping Jiang   +4 more
doaj   +1 more source

Global threats, local opportunities: ice‐related landforms provide refugia for high‐elevation plants and arthropods

Ecography, EarlyView.
Ice‐related landforms in mountain areas have been hypothesized to play a key role in the survival of cold‐adapted species threatened by climate change. However, our understanding of such landforms acting as refugia remains speculative. Here we analyse occurrence data, collected through a standardized sampling at 471 sampling points across the European ...
Mauro Gobbi, Barbara Valle, Mattia Brambilla, Duccio Tampucci, Marco Caccianiga   +4 more
wiley   +1 more source

Pathological hippocampal–cortical hypersynchronization disrupts memory in temporal lobe epilepsy: A multimodal intracranial electroencephalographic–functional magnetic resonance imaging study

Epilepsia, EarlyView.
Abstract Objective Memory impairment is a common comorbidity in temporal lobe epilepsy (TLE) and is thought to arise from hippocampal dysfunction and disrupted interactions within a distributed memory network involving medial temporal, frontal, and parietal cortical regions.
Ruxue Gong, Xiaolong Peng, Rebecca W. Roth, Haris Rashid, William Yun, Daniel L. Drane, Leonardo Bonilha, Lisa McTeague, Ezequiel Gleichgerrcht   +8 more
wiley   +1 more source

Electromagnetic induction in a conducting D″ layer --- I: Effects of boundary charge accumulation and the boundary conditions

Geodesy and Geodynamics, 2019
In response to the primary electric field originated by the fluid-core-dynamo, electric charges accumulate at the boundaries of a solid conducting D″ layer due to the poor circuitry conditions until the irrotational primary electric field is neutralized.
Ming Fang, Xinhao Liao
doaj   +1 more source

Plant‐Derived Extracts Disrupt Biofilm Formation and Quorum Sensing in Yersinia enterocolitica: Insights From GC‐MS and Molecular Docking

Food Chemistry International, EarlyView.
The graphical abstract represents how natural plant products that preferentially target the specific receptors of quorum sensing could be developed to combat biofilms linked to Yersinia enterocolitica using the potent abilities of protein–ligand complexes with high docking scores.
Rajendran Thomas, Songeeta Singha, Devarshi Bharadwaj, Abinash Kumar, Dolly Sharma, Sadhana Ojha, Hirakjyoti Das, Vivek Kumar Gupta   +7 more
wiley   +1 more source

Grain Boundary Diffusion of Ferropericlase: Implications for the Core‐Mantle Interaction

Geophysical Research Letters
Geophysical observations indicate that iron enrichment of various spatial scales may be present in the lowermost mantle. Various mechanisms have been proposed to explain the process of iron infiltration from the core to the mantle, each with its own ...
Yihang Peng, Pierre Hirel, Philippe Carrez, Jie Deng   +3 more
doaj   +1 more source

Geochemical and Geological Investigation of Skarn‐Type Pb–Zn Mineralization in Hastanetepe (Balya‐Balıkesir, Türkiye): An Approach Based on Fluid Inclusions, Sulphur Isotopes and Geochemical Data

Geological Journal, EarlyView.
Integrated petrographic, mineralogical and geochemical data from the Hastanetepe Pb–Zn deposit (Balya, Türkiye) reveal multi‐stage hydrothermal alteration and a magmatic sulphur source. Fluid inclusion and sulphur isotope results indicate a complex fluid evolution responsible for skarn‐type Pb–Zn mineralization along limestone–dacite contacts ...
Esra Ünal‐Çakır
wiley   +1 more source

Density structure of Earth’s lowermost mantle from Stoneley mode splitting observations

Nature Communications, 2017
Large-low-shear-wave velocity provinces (LLSVPs) are present at the core–mantle boundary. Here, the authors show that splitting of Stoneley modes is probably due to a lower density of LLSVPs than the surrounding mantle because of the presence of post ...
Paula Koelemeijer, Arwen Deuss, Jeroen Ritsema   +2 more
doaj   +1 more source