Results 11 to 20 of about 41,861 (265)
This paper describes the amounts and size distributions of amorphous nanoparticles in clays, soils and marine sediments, and the effect of amorphous nanoparticles on the properties of clays, soils and marine sediments.
Katsuhiro Tsukimura +4 more
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Metabolites of Marine Sediment-Derived Fungi: Actual Trends of Biological Activity Studies
Marine sediments are characterized by intense degradation of sedimenting organic matter in the water column and near surface sediments, combined with characteristically low temperatures and elevated pressures.
Anton N. Yurchenko +2 more
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Salmon aquaculture and antimicrobial resistance in the marine environment. [PDF]
Antimicrobials used in salmon aquaculture pass into the marine environment. This could have negative impacts on marine environmental biodiversity, and on terrestrial animal and human health as a result of selection for bacteria containing antimicrobial ...
Alejandro H Buschmann +8 more
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Authigenic carbonates are widely distributed in marine sediments, microbes, and anaerobic oxidation of methane (AOM) play a key role in their formation.
Zilin Wei +7 more
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The Biogeochemical Sulfur Cycle of Marine Sediments [PDF]
Microbial dissimilatory sulfate reduction to sulfide is a predominant terminal pathway of organic matter mineralization in the anoxic seabed. Chemical or microbial oxidation of the produced sulfide establishes a complex network of pathways in the sulfur cycle, leading to intermediate sulfur species and partly back to sulfate.
Jørgensen, Bo Barker +2 more
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Marine sediment is an important channel for methane leakage from the earth interior to the atmosphere. The investigation of gas invasion in fine-grained marine sediments is of great theoretical and practical significance in marine science and engineering.
Yehuan Wang +5 more
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Determination of Virus Abundance in Marine Sediments [PDF]
ABSTRACT In this study, we optimized procedures to enumerate viruses from marine sediments by epifluorescence microscopy using SYBR Green I as a stain. The highest virus yields from the bulk of the sediments were obtained by utilizing pyrophosphate and 3 min of sonication.
DANOVARO R +4 more
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Marine sediments tell it like it was [PDF]
We live in a constantly changing environment. Although some changes are natural and therefore beyond our control, there is no question that many anthropogenic activities have dramatically altered our planet. The “human footprint” is now discernable around the globe, so much so that Crutzen (1) proposed a new geological epoch (the Anthropocene) to ...
openaire +2 more sources
Reactive iron in marine sediments [PDF]
A combined field/laboratory study has been undertaken to explore the mineralogy, concentrations and reactivity (towards sulfide) of iron in marine sediments. Also considered is the importance of bacterial Fe liberation in regulating pore-water chemistry. Two contrasting marine environments are included; one is the relatively Fe-poor FOAM site and the
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Influences of temperature stress path on strength characteristics of undisturbed marine sediments
The difference between the room and the in-situ temperatures leads to that of the measured physical and mechanical parameters of marine sediments. Based on the temperature-controlled triaxial apparatus, the consolidated undrained shear tests are carried ...
ZHANG Xinrui 1, 3, KONG Gangqiang 1, YANG Qing 2
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