Results 41 to 50 of about 1,433,306 (343)

Evaluating the influence of lake morphology, trophic status and diagenesis on geochemical profiles in lake sediments [PDF]

, 2010
Recent geochemical studies provide evidence that changes in vertical distributions of nutrients in lake sediments are driven by anthropogenic activities, based primarily on trends of increasing concentrations in upper sediment layers.
Hamilton, David P., Pilditch, Conrad A., Trolle, Dennis   +2 more
core   +2 more sources

Effect of air exposure time on erodibility of intertidal mud flats

Frontiers in Marine Science
This study investigates the influence of air exposure time on the erodibility of intertidal mud flats, emphasizing the role of evaporation in altering sediment strength and cohesion.
Floris F. van Rees, Floris F. van Rees, Floris F. van Rees, Jill Hanssen, Jill Hanssen, Stefano Gamberoni, Arno M. Talmon, Arno M. Talmon, Thijs van Kessel   +8 more
doaj   +1 more source

Sensitivity and uncertainty analysis of the Variable Infiltration Capacity model in the upstream of Heihe River basin [PDF]

Proceedings of the International Association of Hydrological Sciences, 2015
The increasing water problems and eco-environmental issues of Heihe River basin have attracted widespread attention. In this research, the VIC (Variable Infiltration Capacity) model was selected to simulate the water cycle of the upstream in Heihe River ...
R. He, B. Pang
doaj   +1 more source

Comparing Active Learning for Satellite Imagery: Contrastive Learning, Diversity, Confidence Sampling, and Cold Start Strategies

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
In this article, we investigated and compared common active learning strategies for classification and semantic segmentation tasks using satellite imagery.
David Pogorzelski, Peter Paul Arlinghaus, Wenyan Zhang   +2 more
doaj   +1 more source

Cross-Medium Control of Water and Soil Environmental Pollution in Watershed

中国工程科学, 2022
Pollutants have complex source-sink relationships in water and soil environments at a catchment scale, and the transformation of pollutants in water and soil environments is primarily controlled by various water-soil interface processes.
Xia Xinghui , Pei Yuansheng , Wang Gongqin   +2 more
doaj   +1 more source

Structural insights into lacto‐N‐biose I recognition by a family 32 carbohydrate‐binding module from Bifidobacterium bifidum

FEBS Letters, EarlyView.
Bifidobacterium bifidum establishes symbiosis with infants by metabolizing lacto‐N‐biose I (LNB) from human milk oligosaccharides (HMOs). The extracellular multidomain enzyme LnbB drives this process, releasing LNB via its catalytic glycoside hydrolase family 20 (GH20) lacto‐N‐biosidase domain.
Xinzhe Zhang, Naoki Sunagawa, Toma Kashima, Kiyohiko Igarashi, Akimasa Miyanaga, Shinya Fushinobu   +5 more
wiley   +1 more source

Climate change and human activities amplify runoff variability risks in lower reaches of large rivers

Communications Earth & Environment
The contributions of climate change and human activities to runoff variation have been examined in multiple individual catchments, but upstream-downstream interaction relationships remain underexplored.
Ju Gao, Chunhui Li, Xiong Zhou, Yujun Yi, Xuan Wang, Qiang Liu   +5 more
doaj   +1 more source

Use of rare earth oxides as tracers to identify sediment source areas for agricultural hillslopes [PDF]

, 2010
Understanding sediment sources is essential to enable more effective targeting of in-field mitigation approaches to reduce diffuse pollution from agricultural land.
Deasy, C., Quinton, John
core   +1 more source

Peptide‐based ligand antagonists block a Vibrio cholerae adhesin

FEBS Letters, EarlyView.
The structure of a peptide‐binding domain of the Vibrio cholerae adhesin FrhA was solved by X‐ray crystallography, revealing how the inhibitory peptide AGYTD binds tightly at its Ca2+‐coordinated pocket. Structure‐guided design incorporating D‐amino acids enhanced binding affinity, providing a foundation for developing anti‐adhesion therapeutics ...
Mingyu Wang, Grace Du, Charity Yongo‐Luwawa, Angelina Lu, Brett Kinrade, Kim Munro, Karl E. Klose, William D. Lubell, Peter Davies, Shuaiqi Guo   +9 more
wiley   +1 more source

Adaption mechanism and ecological role of CPR bacteria in brackish-saline groundwater

npj Biofilms and Microbiomes
Candidate phyla radiation (CPR) constitutes a substantial fraction of bacterial diversity, yet their survival strategies and biogeochemical roles in brackish-saline groundwater remain unknown. By reconstructing 399 CPR metagenome-assembled genomes (MAGs)
Jiawen Wang, Haohui Zhong, Qian Chen, Jinren Ni   +3 more
doaj   +1 more source