Results 41 to 50 of about 491,983 (173)
Oxidation of clofibric acid in aqueous solution using a non-thermal plasma discharge or gamma radiation [PDF]
Chemosphere, Available online 23 August 2017, 2017 In this work, we study degradation of clofibric acid (CFA) in aqueous solution using either ionizing radiation from a $^{60}$Co source or a non-thermal plasma produced by discharges in the air above the solution. The results obtained with the two technologies are compared in terms of effectiveness of CFA degradation and its by-products.
arxiv +1 more source
Screening of Polyphenols and Antioxidative Activity in Industrial Beers
Foods, 2020 Antioxidative molecules, such as polyphenols can preserve and prolong the freshness of packaged beers. The aim of this work was to assess the content of polyphenolic compounds (by Folin-Ciocalteu and standard European Brewery Convention method) in ...
Kristina Habschied +2 more
doaj +1 more source
Selective Adsorption and Chiral Amplification of Amino Acids in Vermiculite Clay -Implications for the origin of biochirality [PDF]
Phys. Chem. Chem. Phys. (2010) DOI: 10.1039/c0cp01388a, 2010 Smectite clays are hydrated layer silicates that, like micas, occur naturally in abundance. Importantly, they have readily modifiable interlayer spaces that provide excellent sites for nanochemistry. Vermiculite is one such smectite clay and in the presence of small chain-length alkyl-NH3Cl ions, forms sensitive, 1-D ordered model clay systems with ...
arxiv +1 more source
Guaraná - Paullinia cupana, (H.B.K): Estudo da oxidação das formas em pó e em bastões defumados
Revista de Ciências Agroveterinárias, 2015 O guaraná - Paullinia cupana, HBK - fruto do guaranazeiro - é uma planta nativa da região Amazônica. No Amazonas é cultivado, principalmente, em Maués. Atualmente, a produção se estende pelos Estados da Bahia, Pará e Mato Grosso.
Wilson Gomes da Silva +3 more
doaj
Correlation between retention and C-18 silica gel surface coverage in reversed-phase liquid chromatography [PDF]
Journal of the Serbian Chemical Society, 2000 The effect of C-18 silica gel surface coverage on the retention behaviour of some estrone derivatives in reversed phase high performance liquid chromatography has been studied.
Ačanski Marijana M. +3 more
doaj +1 more source
Biotechnology & Biotechnological Equipment, 2019 The aim of this study was to investigate a novel means of treating piglet diarrhoea caused by enterotoxigenic Escherichia coli (ETEC) strain K88 using traditional Chinese medicine (TCM) fermented by selected probiotic strains.
Wei Gu +6 more
doaj +1 more source
Fatty Acid Composition, Tocopherol and Sterol Contents in Linseed (Linum usitatissimum L.) Varieties [PDF]
Iranian Journal of Chemistry & Chemical Engineering, 2017 The oil contents of linseeds were determined between 39.9% (Antares) and 43.3% (Railinus). The oleic acid contents of seed oils varied between 0.8% (Maroc) and 24.8 (Railinus).
Bertrand Matthäus, Mehmet Musa Özcan
doaj
Pharmaceutical Biology, 2019 Context: Currently, there is no cure or early preclinical diagnostic assay available for depression. Recently, depression has been observed in association with metabolic abnormalities of the glutamate (Glu)–glutamine (Gln) cycling, which is regulated by ...
Ya-Ping Chen, Chuang Wang, Jiang-Ping Xu
doaj +1 more source
Drug Analytical Research, 2018 A stability-indicating LC method was validated for the quantification of midazolam (MDZ) active pharmaceutical ingredient (API) and in pharmaceutical formulations. Isocratic chromatography was performed on C18 column with mobile phase containing methanol/
Daiane Anzilaggo +4 more
doaj +1 more source
Hierarchical Position Embedding of Graphs with Landmarks and Clustering for Link Prediction [PDF]
Learning positional information of nodes in a graph is important for link prediction tasks. We propose a representation of positional information using representative nodes called landmarks. A small number of nodes with high degree centrality are selected as landmarks, which serve as reference points for the nodes' positions.
arxiv +1 more source