Increased ship traffic in the Arctic region raises the risk of oil spills. With an average sea depth of 1,000 m, there is a growing concern over the potential release of oil sinking in the form of marine oil snow into deep Arctic waters. At increasing depth, the oil-degrading community is exposed to increasing hydrostatic pressure, which can reduce microbial activity. However, microbes thriving in polar regions may adapt to low temperature by modulation of membrane fluidity, which is also a well-known adaptation to high hydrostatic pressure. At mild hydrostatic pressures up to 8-12 MPa, we did not observe an altered microbial activity or community composition, whereas comparable studies using deep-sea or sub-Arctic microbial communities with temperatures of 4-5°C showed pressure-induced effects at 10-15 MPa. Our results suggest that the psychrophilic nature of the underwater microbial communities in the Arctic may be featured by specific traits that enhance their fitness at increasing hydrostatic pressure.
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http://dx.doi.org/10.1128/aem.00987-23 | DOI Listing |
ACS Appl Mater Interfaces
January 2025
School of Energy and Power Engineering, Huazhong University of Science & Technology, Wuhan, Hubei 430074, China.
All-solid-state lithium metal batteries hold promise for meeting the industrial demands for high energy density and safety. However, voids are formed at the lithium metal anode/solid-state electrolyte interface during stripping, deteriorating interface contact and reducing the cycle stability. Stack pressure and operating temperature are effective methods to activate creep deformation in lithium metal, promoting interfacial deformation and alleviating void-induced interface issues.
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December 2024
Department of Ophthalmology, Boston University Chobanian & Avedisian School of Medicine;
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View Article and Find Full Text PDFInt J Biol Macromol
December 2024
College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian, PR China; Fujian Provincial Key Laboratory of Quality Science and Processing Technology in Special Starch, Fuzhou, Fujian, PR China. Electronic address:
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December 2024
Department of Applied Sciences, Northumbria University, Newcastle Upon Tyne NE1 8ST, Tyne & Wear, England, United Kingdom. Electronic address:
Sci Rep
December 2024
Liaoning Institute of Technology and Equipment for Mineral Resources Development and Utilisation in Higher Educational Institutions, Liaoning Technical University, Fuxin, 123000, Liaoning, China.
Water is one of the most important influences on slope stability in open pit mines. In order to solve the problem of slope stability analysis in multi-aquifer open pit mines, the open pit mine in Block I of Thar Coalfield in Pakistan with multiple aquifers was taken as the research background. The groundwater flow field at different excavation phases was analyzed by numerical simulation method.
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