Results 81 to 90 of about 527,248 (278)

Solubilidade, fracionamento e fitoextração de metais pesados após aplicação de agentes quelantes Solubility, phytoextraction and fractionation of heavy metals as a function of chelating agents applied to soil

Revista Brasileira de Ciência do Solo, 2006
A baixa biodegrabilidade de quelantes sintéticos usados para induzir a fitoextração resulta em alto risco ambiental pela possibilidade de lixiviação de metais pesados.
Évio Eduardo Chaves de Melo, Clístenes Williams Araújo do Nascimento, Ana Cristiane Queiroz Santos   +2 more
doaj   +1 more source

Speciation of selected trace and major elements in lignite used in "Nikola Tesla A" power plant (Obrenovac, Serbia) [PDF]

Journal of the Serbian Chemical Society, 2005
Four samples of milled lignite used in the "Nikola Tesla A" power plant located in Obrenovac near Belgrade, were subjected to a five-step sequential extraction, comprising of the following phases: distilled water, 1M ammonium acetate, 0.2M ammonium ...
Popović Aleksandar R., Đorđević Dragana S.   +1 more
doaj   +1 more source

Bioavailability of Cu and Zn in raw and anaerobically digested pig slurry [PDF]

, 2009
The impact of anaerobic digestion on the bioavailability of copper and zinc from pig slurry was assessed. Both chemical and biological approaches were used independently on raw slurry (RS) and anaerobically digested pig slurry (DS).
Cecchi, Marie, Guiresse, Agnès Maritchù, Marcato, Claire-Emmanuelle, Pinelli, Eric, Winterton, Peter   +4 more
core   +2 more sources

Crosstalk between the ribosome quality control‐associated E3 ubiquitin ligases LTN1 and RNF10

FEBS Letters, EarlyView.
Loss of the E3 ligase LTN1, the ubiquitin‐like modifier UFM1, or the deubiquitinating enzyme UFSP2 disrupts endoplasmic reticulum–ribosome quality control (ER‐RQC), a pathway that removes stalled ribosomes and faulty proteins. This disruption may trigger a compensatory response to ER‐RQC defects, including increased expression of the E3 ligase RNF10 ...
Yuxi Huang, Satoshi Hashimoto, Sota Ito, Chisato Kikuguchi, Miho Hoshi, Kiyoshi Yamaguchi, Yoichi Furukawa, Toru Suzuki, Toshifumi Inada   +8 more
wiley   +1 more source

Lead distribution in water and its association with sediment constituents of the “Barje” lake (Leskovac, Yugoslavia) [PDF]

Journal of the Serbian Chemical Society, 2001
The lead concentrations in the water of the “Barje” lake are presented for the years 1995 to 1998. Sequential extraction was applied to estimate the chemical association of lead in the sediments of the “Barje” lake. Several lead fractions showed
Todorović Z., Polić P., Đorđević D., Antonijević S.   +3 more
doaj   +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

Demonstrating the sustainable approach in valorizing the Citrus limetta peel

Food Chemistry Advances
The present study details using sweet lime (Citrus limetta) peel waste in a sequential extraction process to obtain essential oil, hesperidin, and pectin to align with sustainable practices and promote a circular economy.
Bawin Ram, Harsh B Jadhav, Sandhya R Shewale, Uday S Annapure   +3 more
doaj   +1 more source

Migration and Transformation of Vanadium and Nickel in High Sulfur Petroleum Coke during Gasification Processes

Energies, 2018
The volatilization characteristics and occurrence forms of V and Ni in petroleum coke (petcoke) were investigated during steam (H2O) and carbon dioxide (CO2) gasification on a fixed bed reactor at 800–1100 °C.
Wei Li, Ben Wang, Jun Nie, Wu Yang, Linlin Xu, Lushi Sun   +5 more
doaj   +1 more source

The solid phase distribution and bioaccessibility of potentially harmful elements in natural ironstone soils in the UK [PDF]

, 2012
Chemical reactions and physical and biological processes influence the mobility of potentially harmful elements (PHEs) present within soils. In the UK, soil PHE such as arsenic (As), chromium (Cr) and nickel (Ni) occur at elevated concentrations in ...
Wragg, Joanna
core  

Real‐time assay of ribonucleotide reductase activity with a fluorescent RNA aptamer

FEBS Letters, EarlyView.
Ribonucleotide reductases (RNR) synthesize DNA building blocks de novo, making them crucial in DNA replication and drug targeting. FLARE introduces the first single‐tube real‐time coupled RNR assay, which enables isothermal tracking of RNR activity at nanomolar enzyme levels and allows the reconstruction of allosteric regulatory patterns and rapid ...
Jacopo De Capitani, Noemi E. Nwosu, Viktoria Gocke, Müge Kasanmascheff, Hannes Mutschler   +4 more
wiley   +1 more source