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896  Articles
1 of 91 pages  |  10  records  |  more records»
This paper presents the results of a study on the catalytic activity and selectivity of nickel and palladium catalysts in hydrogenation reactions of nitro- and acetylene compounds. It was shown that the activity and selectivity of nickel catalysts in the ... see more

Hydrophobic carriers can be used to improve the activity, stability and other properties of enzymes. Physical agents, like ultrasound, may also contribute to improving the dispersion and collision of the reagent molecules, decreasing the reaction time and... see more

Hydrophobic carriers can be used to improve the activity, stability and other properties of enzymes. Physical agents, like ultrasound, may also contribute to improving the dispersion and collision of the reagent molecules, decreasing the reaction time and... see more

Chemical stability, reusability, and adsorption selectivity of Cd2+ ionic imprinted Nannochloropsis sp with silica matrix (Cd(II)-IIP) from precursor tetraethyl orthosilicate (TEOS) have been studied through adsorption experiment series with batch method.... see more

The sensitivity and selectivity of voltammetric sensor for uric acid can be improved by modifying the working electrode using a polymer with a molecular template (molecularly imprinted polymer, MIP). Polymer and MIP was synthesized from methacrylic acid (... see more

The selectivity of an active natural zeolite (ZAAH) in catalytic conversion process of Bangkirai, Kruing and Kamper woods biofuels has been studied. The ZAAH catalyst was prepared from a natural zeolite (ZA) treated with acids solution (1% HF and 6M HCI) ... see more

In the group of disorders in children with autism spectrum observed food selectivity. The article presents a case study of a therapeutic program applied to a child with food selectivity.A 5-year-old boy with a diagnosed autism spectrum was selected for th... see more

The determination of total bifidobacteria number from yogurts and the determination of total germ number from the pure culture of Bifidobacterium essensis and Lactobacillus acidophilus was made on solid culture medium MRS and broth MRS, GL, B1. In the cas... see more

O objetivo do estudo foi avaliar a eficiência e a seletividade de diferentes inseticidas usados via tratamento de semente no controle dos pulgões na cultura da aveia bem produção de matéria. O ensaio foi conduzido em Faxinal dos Guedes, SC, no ano agrícol... see more

1 of 91 pages  |  10  records  |  more records»