Results 61 to 70 of about 1,126 (256)

Morphological and Magnetic Analysis of Nieuwerkerk Volcano, Banda Sea, Indonesia: Preliminary Hazard Assessment and Geological Interpretation

Geosciences
Nieuwerkerk Volcano, located in the Banda Sea, Indonesia, is a submarine volcano whose entire edifice lies beneath sea level. Its proximity to several inhabited islands raises significant concerns regarding potential impacts from future volcanic hazards.
Aditya Pratama, Muhammad Aufaristama, Alutsyah Luthfian, Muhammad Zain Tuakia, Ratika Benita Nareswari, Putu Billy Suryanata, Gabriela Nogo Retnaningtyas Bunga Naen, Affan Fadhilah, Nurhidayat   +8 more
doaj   +1 more source

Enhanced magmatism played a dominant role in triggering the Miocene Climatic Optimum

Communications Earth & Environment, 2023
The Miocene climatic optimum could have been triggered by coeval increase in magmatism, suggests global carbon cycle simulations constrained by seawater osmium isotope data from Pacific Ocean sediments.
Kosuke T. Goto, Maria Luisa G. Tejada, Eiichi Tajika, Katsuhiko Suzuki   +3 more
doaj   +1 more source

UCHL3 Regulates Subgenomic Flaviviral RNA Condensates to Promote Virus Propagation

Advanced Science, EarlyView.
ABSTRACT Flavivirus subgenomic RNAs (sfRNAs) antagonise antiviral defences, yet how sfRNAs are organized and maintained in cells remains poorly understood. Here we identify ubiquitin C‐terminal hydrolase L3 (UCHL3) as a post‐translational regulator of flavivirus sfRNA stability and function.
Oscar Trejo‐Cerro, Anna Beekmayer‐Dhillon, Qi Wen Teo, Lewis Siu, Ming Yuan Li, Kate J. Heesom, Adán Pinto‐Fernández, Sumana Sanyal   +7 more
wiley   +1 more source

Cigarette Smoke‐Induced Alveolar Macrophage Senescence via GEM/SIRT3‐Mediated Mitochondrial Dysfunction

Advanced Science, EarlyView.
Cigarette smoke accelerates the aging of immune cells in the lung. By combining human single‐cell sequencing, cell culture, and mouse models, the authors show that the protein GEM drives mitochondrial damage and senescence in alveolar macrophages by suppressing SIRT3.
Jin Wang, Meidan Wei, Xiangrong Song, Jiaxin Zhang, Lisha Zhang, Sixian Chen, Yaoyu Hu, Hui Gao, Jianxiang Li   +8 more
wiley   +1 more source

Origin of the Ionospheric Changes Immediately Before the 15 January 2022 Eruption of the Hunga-Tonga Hunga-Ha’apai Submarine Volcano

Atmosphere
Near-field ionospheric total electron content records before and after the 15 January 2022 eruption of the Hunga-Tonga Hunga-Ha’apai submarine volcano were studied using GNSS total electron content data.
Kosuke Heki
doaj   +1 more source

Astrocytic Phenotypic Switching in Posterior Piriform Cortex Orchestrates Bone Cancer Pain–Depression Comorbidity via Purinergic–Noradrenergic Signaling

Advanced Science, EarlyView.
Bone cancer pain and depression share a common origin: astrocytic A2‐to‐A1 transition in the posterior piriform cortex. This phenotypic shift disrupts the ATP–adenosine–A2AR–norepinephrine axis, simultaneously driving nociceptive and affective dysfunction.
Jiang‐Ping Liu, Jun‐Han Zhang, Zhi‐Xuan Tan, Wei‐Bing Yan, Ya‐Ru Yuan, Yao Liu, Bing‐Di Wei, Meng‐Qi Ding, Zhuo‐Min Fu, Ying Liu, An‐Qi Wang, Lin Ma, Yong‐Hong Li, Er‐Qing Chai, Chao‐Jun Wei   +14 more
wiley   +1 more source

Clay Mineral Suites in Submarine Mud Volcanoes in the Kumano Forearc Basin, Nankai Trough: Constraints on the Origin of Mud Volcano Sediments

Geosciences, 2018
Clay mineralogy is an important characteristic of mud volcano sediments. This study determined the clay mineral compositions of sediment from two submarine mud volcanoes in the Kumano forearc basin, Nankai Trough, by X-ray diffraction analysis.
Akira Ijiri, Koichi Iijima, Urumu Tsunogai, Juichiro Ashi, Fumio Inagaki   +4 more
doaj   +1 more source

Ongoing Activity at Hunga Submarine Volcano, Tonga: The Case for Better Monitoring of Submarine Volcanoes Worldwide

Geochemistry, Geophysics, Geosystems
AbstractThe powerful eruption of Hunga volcano (15‐January‐2022) excavated ∼6.3 km3 of pre‐existing material, leaving behind an 855 m deep crater. The scientific and humanitarian response to this event was challenging due to the remote location, safety concerns, and COVID‐19 pandemic restrictions.
Sharon L. Walker, Cornel E. J. de Ronde
openaire   +2 more sources

Synergy of Pd Clusters and TiO2 {101} for Photocatalytic Nonoxidative Coupling of Methane

Advanced Science, EarlyView.
This study presents photocatalytic nonoxidative coupling of methane over cal‐Pd0.05/TiO2{101}, achieving near 100% selectivity and long‐term stability under mild flow conditions through synergistic single atoms and clusters catalysis. ABSTRACT Photocatalytic nonoxidative coupling of methane (NOCM) offers a sustainable route to valorize CH4 into C2 ...
Jianlong Yang, Annika S. Tang, Junwang Tang   +2 more
wiley   +1 more source

Far-reaching volcaniclastic density current deposits as evidence of explosive marine eruptions

Nature Communications
Underwater sediment density currents triggered by marine volcanic eruptions threaten island communities and infrastructure, while their deposits provide archives of past eruptions. Despite their significance, scarce real-time density current observations
Jacob A. Nash, Isobel A. Yeo, Michael A. Clare, James Hunt, Andrew B. Cundy, Sally Watson, Richard Wysoczanski, Sarah Seabrook, Kevin Mackay, Shane J. Cronin, Joali Paredes-Mariño, Taaniela Kula, Rennie Vaiomounga, Cían McGuire, Miros S. J. Charidemou   +14 more
doaj   +1 more source