Results 41 to 50 of about 387,798 (268)

Performance of Bearings Combining Ceramic and Steel Rolling Elements

open access: yesTribology Online
A balanced ceramic hybrid bearing incorporates an optimal mix of ceramic and steel rolling elements, balancing performance with manufacturing costs, which is crucial for many industrial products.
Alexander R. Gabelli
doaj   +1 more source

Reconstructing enzyme evolution by protein engineering

open access: yesFEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler   +2 more
wiley   +1 more source

Contamination Level of Mercury in the Street Dust of Ahvaz City and its Spatial Distribution

open access: yesعلوم آب و خاک, 2018
Dust particles are suspended particles created from various natural and anthropogenic sources. Dust particles contain toxic metals, such as mercury (Hg), which can have harmful effects on the human health.
H. Babaei, N. GHanavati, A. Nazarpour
doaj  

Effects of Heavy Metal Contamination Caused by Residual Leachate on Forest Soil in Babol Anjilsi Region, Iran

open access: yesتحقيقات جغرافيايی, 2020
Aims & Backgrounds: The heavy metals are a part of the minor elemental elements in the nature. Forest soils directly and indirectly affect public health through the production of nutritional factors on plants and animals in the ecosystem.
Mohammad Rahmani   +2 more
doaj  

Soil Pollution and Plant Efficiency Indices for Phytoremediation of Heavy Metal(loid)s: Two-Decade Study (2002–2021)

open access: yesMetals, 2022
This paper reviews research on phytoremediation (2002–2021), particularly for the estimation of plant efficiency and soil pollution indices, examining the extraction of metals from soil and plants growing under both artificial (spiked with specific metal)
Adarsh Kumar   +5 more
doaj   +1 more source

Identification of a Shiga toxin A‐derived peptide internalized into Gb3 receptor‐bearing cells via interaction with the Shiga toxin B subunit

open access: yesFEBS Letters, EarlyView.
The process of internalization of the Shiga toxin A subunit via formation of a complex with the Shiga toxin B subunit, which specifically binds to the Gb3 receptor. The peptide is designed to act as a carrier of drugs into cancer cells. Here, we explored the potential of peptides derived from the catalytic A subunit of Shiga toxin (STxA) to be drug ...
Giulia Opassi   +6 more
wiley   +1 more source

Heavy metal profiles and pollution indices of top soil sampled from six metallic material scrapyards located in Benin city, Mid Western Nigeria

open access: yesEQA
Heavy metal levels and other parameters which included organic carbon content of topsoil samples collected from six metallic material scrapyards and a control sites all located in Benin city were determined using routine techniques.  The locations of the
Nosa Omoregbe Obayagbona   +3 more
doaj   +1 more source

An epithelial GPR35 isoform supports tumor‐associated transcriptional and metabolic phenotypes

open access: yesFEBS Letters, EarlyView.
GPR35 generates two functionally distinct isoforms with previously unresolved roles. GPR35‐short mediates immune‐cell chemotaxis, while GPR35‐long is enriched in colorectal cancer epithelium, where it supports increased metabolism, proliferation, and tumor‐associated transcriptional programs.
Jørgen D. Rønneberg   +14 more
wiley   +1 more source

Evaluation of Pb, Zn, Cu and Ni Concentration in Arak Mighan Wetland Based on Sediment Pollution Indices

open access: yesعلوم آب و خاک, 2018
Today, the growth of population, the excessive growth of cities and subsequently, the industries development in all parts of the planet are evident. Such development leads to the entrance of chemical martials with various compounds, particularly heavy ...
F. Saberinasab, S. Mortazavi
doaj  

Historical Trends of Trace Metals in the Sepetiba Bay Sediments: Pollution Indexes, Fluxes and Inventories

open access: yesJournal of Marine Science and Engineering
The environmental condition of surface sediments in Sepetiba Bay is influenced by trace metals derived from human activities. Four sediment cores were collected from both the inner (Coroa Grande and Enseada das Garças) and outer (Guaratiba and Marambaia)
Sarah Karoline Rodrigues   +3 more
doaj   +1 more source

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