Results 91 to 100 of about 136,223 (377)

Assessment of cytotoxicity and mutagenicity of insecticide Demond EC25 in Allium cepa and Ames Test

Caryologia, 2019
The mutagenicity and cytotoxicity of Demond EC25, a synthetic pyrethroid insecticide, was assessed using two standard genotoxicity assays of the Salmonella typhimurium mutagenicity assay (Ames test) and Allium cepa test.
Arzu Özkara
doaj   +1 more source

An Ensemble Model of QSAR Tools for Regulatory Risk Assessment [PDF]

, 2016
Quantitative structure activity relationships (QSARs) are theoretical models that relate a quantitative measure of chemical structure to a physical property or a biological effect.
Merrill, Stephen, Povinelli, Richard J., Pradeep, Prachi, White, Shannon   +3 more
core   +4 more sources

Easier, Safer, and Greener: Unlocking the Power of Solid Reagents in Organic Reactions by Mechanochemistry

ChemistryEurope, EarlyView.
This review highlights the powerful synergy between mechanochemistry and solid reagents to replace hazardous substances traditionally used in organic synthesis. Such an approach offers a safer and more sustainable pathway for conducting organic reactions, with potential benefits in both reactivity and selectivity. The use of solid bases, acids, and gas
Adrien Gallego, Nicolas Pétry, Julien Pinaud, Olivia Giani, Frédéric Lamaty   +4 more
wiley   +1 more source

Characterization of Flavonoids and Naphthopyranones in Methanol Extracts of Paepalanthus chiquitensis Herzog by HPLC-ESI-IT-MSn and Their Mutagenic Activity

Molecules, 2012
A HPLC-ESI-IT-MSn method, based on high-performance liquid chromatography coupled to electrospray negative ionization multistage ion trap mass spectrometry, was developed for rapid identification of 24 flavonoid and naphthopyranone compounds.
Wagner Vilegas, Lourdes Campaner dos Santos, Paulo Takeo Sano, Samara Fernandes de Souza, Eliana Aparecida Varanda, Paula Karina Boldrin, Fabiana Volpe Zanutto   +6 more
doaj   +1 more source

Futility Analysis in the Cross-Validation of Machine Learning Models [PDF]

, 2014
Many machine learning models have important structural tuning parameters that cannot be directly estimated from the data. The common tactic for setting these parameters is to use resampling methods, such as cross--validation or the bootstrap, to evaluate
Kuhn, Max
core  

Ethylenebisdithiocarbamates and ethylenethiourea: possible human health hazards. [PDF]

, 1995
Humans are exposed to ethylenebisdithiocarbamates (EBDCs) from environmental sources. Exposure to EBDCs is chronic for workers in a variety of industries, where EBDCs are used for their properties as slimicides, vulcanization accelerators, antioxidants ...
Bindoula, G, Hoffman, JR, Houeto, P
core   +2 more sources

Antidiabetic Potential of Ligands from NEIST_PMIB_06, Bacterium Associated with Hawaijar (Fermented Soy Food): Insight from in Vitro and in Silico Studies

ChemFoodChem, EarlyView.
ABSTRACT In this study, a bacterium (NEIST_PMIB_06) was isolated from Hawaijar, a fermented soy food from Manipur, Northeast India. The bacterium was inoculated and incubated to isolate bioactive compounds. Liquid‐liquid extraction was performed to obtain extracts (cell‐free and cell‐based), and their efficacy was evaluated.
A Ibeyaima, Hiranmoy Barman, Prasenjit Manna   +2 more
wiley   +1 more source

Genotoxicity and mutagenicity of water contaminated with tannery effluents, as evaluated by the micronucleus test and comet assay using the fish Oreochromis niloticus and chromosome aberrations in onion root-tips

, 2006
Cytotoxicity of metals is important because some metals are potential mutagens able to induce tumors in humans and experimental animals. Chromium can damage DNA in several ways, including DNA double strand breaks (DSBs) which generate chromosomal ...
S. T. Matsumoto, M. Mantovani, Mirtis Irene Ariza Malaguttii, A. L. Dias, I. C. B. Fonseca, M. A. Marin-Morales   +5 more
semanticscholar   +1 more source

Water pollutant fingerprinting tracks recent industrial transfer from coastal to inland China: a case study [PDF]

, 2013
In recent years, China’s developed regions have transferred industries to undeveloped regions. Large numbers of unlicensed or unregistered enterprises are widespread in these undeveloped regions and they are subject to minimal regulation. Current methods
Andersen, Melvin E., Crabbe, M. James C., He, Genhsjeng, Jiang, Songhui, Qu, Weidong, Tian, Dajun, Wang, Xia, Zheng, Weiwei, Zheng, Yuxin, Zhong, Yang   +9 more
core   +2 more sources

Review of recent advances in the design, synthesis, and modification of biochar for remediation of heavy metal pollution in water

The Canadian Journal of Chemical Engineering, EarlyView.
Research frontiers in using biochar for heavy metal remediation. Abstract Heavy metal contamination of water has long been a serious environmental issue. Biochar and biochar‐based composites are emerging as effective and sustainable solutions for heavy metal removal due to their strong adsorption abilities and environmentally friendly nature.
Soumik Chakma, Mehedi Hasan, Sudip K. Rakshit, Janusz Kozinski, Kang Kang   +4 more
wiley   +1 more source