Results 51 to 60 of about 784,267 (315)

Application of the hydrochemistry, stable isotopes and MixSIAR model to identify nitrate sources and transformations in surface water and groundwater of an intensive agricultural karst wetland in Guilin, China

Ecotoxicology and Environmental Safety, 2022
Karst water as the vital water supply source is generally suffered from NO3– contamination in intensive agricultural areas worldwide. Identifying NO3– sources and transformations is the key for understanding nitrogen pathways, and also for effectively ...
Jun Li, Danni Zhu, Si Zhang, Guoli Yang, Yi Zhao, Changsong Zhou, Yongsheng Lin, Shengzhang Zou   +7 more
doaj   +1 more source

How much water is there within calcium silicate hydrates? Probing water dynamics by Inelastic Neutron Scattering and Molecular Dynamics Simulations [PDF]

Calcium silicate hydrate (C-S-H) is a disordered, nanocrystalline material acting as the primary binding phase in Portland cement. Thin films of water are present on the surfaces and inside the nanopores of C-S-H and related phases such as calcium ...
Valérie , Magnin, Stéphane, Gaboreau, Rogier, Besselink, Mónica , Jiménez-Ruiz, Gabriel J., Cuello, Francis, Claret, Alexander E.S., Van Driessche, Zhanar, Zhakiyeva, Svemir, Rudic, María, Pilar Asta, Agnieszka , Poulain, Ian C., Bourg, Sylvain, Grangeon, Sylvain, Campillo, Stéphane , Rols, Alejandro, Fernandez-Martinez   +15 more
core   +1 more source

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

FEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li, Pedro A. Sánchez‐Murcia, Bernd Nidetzky   +2 more
wiley   +1 more source

Enhanced degradation and defluorination of perfluorooctane sulfonate (PFOS) in tap water using gas-dispersed cold atmospheric plasma

Scientific Reports
Per- and polyfluoroalkyl substances (PFAS) are extremely persistent contaminants owing to the exceptional chemical stability of carbon–fluorine (C–F) bonds.
Amit Kumar, Ysabel Huaccallo-Aguilar, Holger Kryk, Uwe Hampel, Sebastian Felix Reinecke   +4 more
doaj   +1 more source

Inverse estimation of soil hydraulic properties and water repellency following artificially induced drought stress

Journal of Hydrology and Hydromechanics, 2018
Global climate change is projected to continue and result in prolonged and more intense droughts, which can increase soil water repellency (SWR). To be able to estimate the consequences of SWR on vadose zone hydrology, it is important to determine soil ...
Filipović Vilim, Weninger Thomas, Filipović Lana, Schwen Andreas, Bristow Keith L., Zechmeister-Boltenstern Sophie, Leitner Sonja   +6 more
doaj   +1 more source

Influences of anthropogenic acids on carbonate weathering and CO2 sink in an agricultural karst wetland (South China)

Ecological Indicators, 2023
Carbonate minerals are the largest carbon (C) reservoir on earth. Quantitative assessment of carbonate weathering and CO2 sink flux caused by anthropogenic acids in karst wetland regions is imperative to improve understanding of the hydrogeochemical ...
Jun Li, Hao Xie, Jianhong Li, Guoli Yang, Yincai Xie, Jiawei Wang, Changsong Zhou, Shengzhang Zou   +7 more
doaj   +1 more source

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

FEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee, Dimitrios Bekiari, Sofia Doello, Karl Forchhammer   +3 more
wiley   +1 more source

Dynamics of hydration water in proteins

General Physiology and Biophysics, 2009
Thermodynamic and transport properties of liquid water are determined essentially by inter-molecular hydrogen bonds and their dynamics. Because the molecular dynamics depends mostly on geometric constrains and dynamics of hydrogen bonds, it is shown that a simple statistics on the number of bonds, including at the vicinity of hydrophilic substrates ...
openaire   +3 more sources

Water treatment potential in relation to phytoplankton dynamics in tropical sewage-fed urban water bodies [PDF]

, 2011
Urban water bodies frequently receive untreated sewage and water levels in such water bodies are maintained by daily inputs of sewage. They function as “variable-zone” anaerobic-aerobic lagoons suffering several macrophyte, biotic and abiotic stresses ...
Ramachandra, TV, Mahapatra, Durga Madhab, Chanakya, HN   +2 more
core  

Organ‐specific redox imbalances in spinal muscular atrophy mice are partially rescued by SMN antisense oligonucleotides

FEBS Letters, EarlyView.
We identified a systemic, progressive loss of protein S‐glutathionylation—detected by nonreducing western blotting—alongside dysregulation of glutathione‐cycle enzymes in both neuronal and peripheral tissues of Taiwanese SMA mice. These alterations were partially rescued by SMN antisense oligonucleotide therapy, revealing persistent redox imbalance as ...
Sofia Vrettou, Brunhilde Wirth
wiley   +1 more source