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17.357  Articles
1 of 1.737 pages  |  10  records  |  more records»
Misconceptions are defined as wrong ideas or views of a person's concept different from the scientific concepts formulated by experts in their field. It must be reduced immediately so as not to hinder the process of understanding the next interconnected m... see more

In computational analysis of combustion, reduced mechanisms are often used in place of detailed kinetic chemistry because the computational costs of including all the species in the reactor model are always prohibitively high; for this reason, many differ... see more

This study evaluated nutrient utilisation and blood chemistry of Red Sokoto bucks fed a 10 and 20?% inclusion level of raw, water- and lime-soaked Hibiscus sabdariffa L. seeds in rice bran based diets. 21 Red Sokoto bucks aged 8–10 months and weighing 9–1... see more

Nanocomposites of highly reduced graphene oxide (HRG) and ZnOx nanoparticles doped manganese carbonate containing different percentages of HRG were prepared via a facile co-precipitation method. The prepared sample calcined at 300 °C yielded i.e., ZnOx(1%... see more

The aim of this paper was to examine the opinion of chemistry teachers on distance learning realized during the COVID-19 pandemic in the period from March 17 to June 15, 2020. The sample includes 75 primary and secondary school chemistry teachers. The res... see more

Immobilized Artificial Membrane (IAM) chromatography constitutes a valuable tool for medicinal chemists to prioritize drug candidates in early drug development. The retention on IAM stationary phases encodes lipophilicity, electrostatic and other secondar... see more

In this paper, we propose to numerically simulate the spatial-temporal (axial and radial) evolution of the density of certain nitrogen oxides present in the gaseous mixture: 74% N2, 10% O2, 8% H2O and 8% CO2 which is subject to a negative corona discharge... see more

Os resíduos químicos dos laboratórios de química experimental do Departamento de Química Fundamental da Universidade Federal de Pernambuco foram tratados utilizando técnicas analíticas básicas. Os resíduos de tetraamincobre (II) foram tratados, a concentr... see more

Overburden weathering may influence its effects on soil development and plant growth. Here, an accelerated-weathering experiment was used to determine how weathering affects the chemistry and toxicity of coal-mine overburden. Seven samples of overburden w... see more

1 of 1.737 pages  |  10  records  |  more records»