Results 61 to 70 of about 16,837 (258)

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

Orbital‐Insolation Controlled Porites Coral δ13C Seasonality Variations Since the Mid‐Holocene in the Northern South China Sea

Geophysical Research Letters, 2023
Coral skeleton δ13C is a routinely measured indicator in modern insolation change research, but the knowledge of environmental and climatic signals recorded in its seasonality during geological time is sparse.
Hao Wang, Kefu Yu, Tao Han, Shendong Xu, Shichen Tao, Shaohua Dang, Xiaopeng Yu   +6 more
doaj   +1 more source

Upper bound limit analysis of coral reef limestone cavern roof stability incorporating a tension‐shear failure mechanism with tensile‐strength cut‐off

Deep Underground Science and Engineering, EarlyView.
For the roof of coral reef limestone caverns, a novel tension‐shear composite failure mechanism was developed. The most critical tensile crack model was identified using a hybrid optimization algorithm, and the stability of the cavern roof was analyzed accordingly.
Dongsheng Xu, Chenxu Li, Chuantan Hou
wiley   +1 more source

Embryonic development of the Mediterranean starfish Hacelia attenuata

Developmental Dynamics, EarlyView.
Abstract Background Starfish play essential ecological roles as predators and ecosystem regulators; however, detailed developmental descriptions exist for only a handful of species, none of which are from the Mediterranean Sea. Results In this study, we provide the first full account of the development of the Mediterranean starfish Hacelia attenuata ...
Silvia Caballero‐Mancebo, Laurent Gilletta, Janet Chenevert, Stefania Castagnetti   +3 more
wiley   +1 more source

Deep Learning-Based Automatic Estimation of Live Coral Cover from Underwater Video for Coral Reef Health Monitoring

Journal of Marine Science and Engineering
Coral reefs are vital to marine biodiversity but are increasingly threatened by global climate change and human activities, leading to significant declines in live coral cover (LCC).
Zechen Li, Shuqi Zhao, Yuxian Lu, Cheng Song, Rongyong Huang, Kefu Yu   +5 more
doaj   +1 more source

Nested Institutions and Overlapping Mandates: A Policy Analysis of Mangrove Governance in Ghana, Tanzania Mainland, and Zanzibar

Environmental Policy and Governance, EarlyView.
ABSTRACT Mangroves are critical resources in sustaining coastal communities by providing essential ecosystem goods and services. Occurring within the interface of land and sea, they serve as critical ecological zones shaped by dynamic interactions between terrestrial and marine systems.
Menelisi Falayi, Dorothy Khasisi Lukhabi, Linda Bana, Nanabanyin Okwentsie Ekumah, Vincent Cudjoe Egbenya, Denis Worlanyo Aheto, Nandera Juma Lolila, Hamidu Seki, Deo Shirima, Ibrahim Issifu, Mengyi Zhang, Terry Sunderland   +11 more
wiley   +1 more source

Recent advances in multifunctional soft robots: A materials–structures–systems co‐design perspective for synergistic integration

FlexMat, EarlyView.
Abstract Soft robots, engineered from highly compliant materials, offer superior adaptability and safety in unstructured environments compared to their rigid counterparts. Recent advancements, fueled by bio‐inspiration and material programmability, have led to the rapid co‐evolution of their core modules: actuation, sensing, protection, energy, and ...
Qiulei Liu, Zicao Peng, Chong Sun, Haitao Yang   +3 more
wiley   +1 more source

Mapping the subgingival HerBiome and HisBiome over the human healthspan

Journal of Periodontology, EarlyView.
Abstract Background Understanding the intricate relationship between sex, age, and the oral microbiome is crucial for deciphering the onset and progression of numerous age‐related oral and systemic diseases. Methods Subgingival plaque was collected from 781 periodontally and systemically healthy females and 160 males spanning 0 to 80 years.
Rahul Nikam, Kazune Pax, Michelle Lee‐Scott Beverly, Purnima S. Kumar   +3 more
wiley   +1 more source

Reconstructing Early Human Subsistence in Near Oceania: New Insights From Matenkupkum and Matenbek

International Journal of Osteoarchaeology, EarlyView.
ABSTRACT The colonization of New Ireland ~44–40,000 years ago represents the earliest evidence of human occupation in Near Oceania. Yet, the precise impacts of climatic changes on subsistence strategies during the Late Pleistocene, Last Glacial Maximum, and Holocene remain poorly understood.
Joëlle den Toom, Glenn Summerhayes, Anne Ford, Karen Greig   +3 more
wiley   +1 more source

Benthic megafauna and the functioning of macroalgal forests and urchin barrens

Oikos, EarlyView.
Two temperate rocky reef food‐web models, representing the trophic diversity of the Mediterranean rocky reef communities, were built for the two stable states: macroalgal forests and barren grounds, which are characterized by opposite amounts of erect macroalgal biomass.
Chiara Bonaviri, Davide Agnetta, Stefania Pinna, Luigi Piazzi, Fabio Badalamenti, Giulia Ceccherelli, Davide Iaciofano, Manfredi Di Lorenzo, Francesco Di Trapani, Sabrina Lo Brutto, Vesna Mačić, Anna Maria Mannino, Francesco Mura, Luigi Musco, Laura Tamburello, Tomás Vega Fernández, Salvatrice Vizzini, Trevor Willis, Paola Gianguzza   +18 more
wiley   +1 more source