Results 41 to 50 of about 43,697 (308)

Magnetic responses for heavy metal pollution recorded by the sediments from Bohai Sea, Eastern China

iScience, 2022
Summary: The Bohai Sea is facing multidirectional pressure from economic development and pollutant emissions. Magnetic minerals and heavy metal concentrations in the sediments of core M5 from the Bohai Sea were performed.
Xiaohui Wang, Longsheng Wang, Shouyun Hu, Liwei Meng, Lin Zeng, Buli Cui, Chao Zhan, Xianbin Liu, Qing Wang   +8 more
doaj   +1 more source

Magnetic resonance imaging (MRI) of heavy-metal transport and fate in an artificial biofilm [PDF]

, 2008
Unlike planktonic systems, reaction rates in biofilms are often limited by mass transport, which controls the rate of supply of contaminants into the biofilm matrix.
Holmes, W.M., V. R. Phoenix, B. Ramanan, Phoenix, V.R., Ramanan, B., W. M. Holmes   +5 more
core   +1 more source

Evolutionarily divergent DUF4465 domains have a common vitamin B12‐binding function

FEBS Open Bio, EarlyView.
We show that DUF4465 family proteins, widespread across bacteria from gut microbiomes, hydrothermal vents, and soil, share a common vitamin B12‐binding function. These augmented β‐jellyroll proteins bind vitamin B12 via extended loops. Our findings establish sequence‐diverse DUF4465 proteins as a widespread class of B12‐binding proteins, highlighting ...
Charlea Clarke, Michal Banasik, Rokas Juodeikis, Martin J. Warren, Richard W. Pickersgill   +4 more
wiley   +1 more source

Transport characteristics of heavy metals in the soil-atmosphere-wheat system in farming areas and development of multiple linear regression predictive model

Scientific Reports
Heavy metal accumulation in agricultural products has become a major concern. Previous studies have focused on the transport of heavy metals from the soil and their accumulation in crops. However, recent studies revealed that wheat leaves, ears, and awns
Qinghai Deng, Zhenzhou Sun, Liping Zhang, Yongshuai Zhang, Liangyu Zhou, Jingjing Yang, Guizong Sun, Chang Lu   +7 more
doaj   +1 more source

The crystal structure of the Borrelia burgdorferi nicotinamidase BBE22 resolves a long‐standing annotation error

FEBS Open Bio, EarlyView.
The crystal structure of Borrelia burgdorferi nicotinamidase (PncA/BBE22) reveals the correct full‐length protein initiated from a non‐canonical AUU start codon. The structure validates previous biochemical findings and resolves a long‐standing annotation error, demonstrating that the truncated database sequence is structurally incompatible with the ...
Kalvis Brangulis
wiley   +1 more source

Anthropogenic heavy metals in organic forest soils [PDF]

, 2006
The continuous heavy metal accumulation in organic topsoils in forests will pose problems for soil microbial health for many years to come. The primary objective of this thesis was to investigate heavy metal pollution in forest soils and its effects on ...
Åkerblom, Staffan
core  

Study on Cation-Exchange of Removal Metallic Ions at PPy/PVS Film

Journal of Engineering Technology and Applied Physics
Due to the presence of heavy metals in wastewater treatment and manufacturing water purification processes in industries, investigations into potential methods have been widely conducted.
Lay Lian Teo
doaj   +1 more source

Experimental Evaluation of 100Cr6 Steel Microindented Surfaces Under Lubricated Nonconformal Point Contacts

Advanced Engineering Materials, EarlyView.
The tribological behavior of 100Cr6 steel spheres textured via Vickers microindentation is evaluated under lubricated sliding by varying both dimple size and density. Fine and dense textures significantly reduce friction across all lubrication regimes, while large dimples increase it.
Farideh Davoodi, Pasquale Guglielmi, Gianfranco Palumbo, Giuseppe Carbone   +3 more
wiley   +1 more source

Innovative Processing of Compacted Waste Aluminum Alloy Powders via Controlled Remelting and Solidification

Advanced Engineering Materials, EarlyView.
This study demonstrates an efficient recycling route for out‐of‐spec AlSi10Mg atomized powders through compaction and arc remelting followed by suction casting. By correlating compaction load, cooling rate, and resulting microstructure, we show that intermediate pressures (50–80 kN) and rapid cooling refine dendrites, reduce porosity, and enhance ...
Mila Christy de Oliveira, Marcella Gaute Cavalcante Xavier, Abdoul‐Aziz Bogno, Piter Gargarella, José Eduardo Spinelli   +4 more
wiley   +1 more source

Heavy metal(loid)s migration mechanisms during soil erosion: A systematic quantitative review

International Soil and Water Conservation Research
Heavy metal(loid)s migration occurs in both particulate and dissolved forms during soil erosion, but it is unclear which form is dominant and which factors affect it. Thus, a quantitative synthesis of 379 global observations was conducted to assess heavy
Jia Chen, Pingping Fan, Feng Zhang, Liang Tai, Nufang Fang, Yong Niu, Zeyan Wu, Zhiyong Fu, Kelin Wang   +8 more
doaj   +1 more source