Results 1 to 10 of about 384,598 (248)

EXTRACTION AND IDENTIFICATION OF FORMULATIONS OF ANABOLIC ANDROGENIC STEROIDS: A FORENSIC EDUCATIONAL APPROACH [PDF]

open access: yesQuímica Nova, 2021
The use of anabolic androgenic steroids is largely restricted worldwide since they are associated with innumerous side effects and health damage. However, apprehensions of formulations of anabolic agents have been extensively increasing throughout the ...
Lucas M. Berneira   +7 more
doaj   +1 more source

Academic roots of chemical engineering in XVIII and XIX century in middle Europe [PDF]

open access: yesHemijska Industrija, 2010
Roots of chemical engineering in Middle Europe lead to the first mining and metallurgy academies, established in VIII century in Upper Hungaria and in Bohemian Kingdom.
Halasi Tibor   +2 more
doaj   +1 more source

A ÉTICA QUÍMICA E SEU ENSINO A ESTUDANTES DE QUÍMICA

open access: yesQuímica Nova, 2021
CHEMICAL ETHICS AND ITS TEACHING TO CHEMISTRY STUDENTS. This paper aims at broadening the understanding of scientific ethics by addressing chemical ethics, which deals with the benefits, risks and uncertainties associated with or arising from chemical ...
Evandro F Rozentalski, Paulo A Porto
doaj   +1 more source

Exploring Students' Level of Conceptual Understanding on Periodicity

open access: yesJPAIR, 2018
Nowadays, many science studies motivated on addressing the conceptual understanding particularly in chemistry that soon may affect students' academic performance.
Dexter Necor
doaj   +1 more source

O sistema globalmente harmonizado de classificação e rotulagem de produtos químicos (GHS): uma introdução para sua aplicação em laboratórios de ensino e pesquisa acadêmica

open access: yesQuímica Nova, 2013
The present article provides an overview of the Globally Harmonised System of Classification, Labelling and Packaging of Chemicals (GHS) and its implementation in Brazil.
Wilhelm Martin Wallau   +1 more
doaj   +1 more source

História da química e da geologia: Joseph Black e James Hutton como referências para educação em ciências History of chemistry and geology: Joseph Black and James Hutton as references for science education

open access: yesQuímica Nova, 2002
The second half of eighteenth century is marked by the advancement of chemistry and geology. The first science acquired the law of conservation of mass and this science represented a important support to geology and mineralogy.
Natalina Aparecida L. Sicca   +1 more
doaj   +1 more source

Evaluation of the Chemistry Knowledge of Students Entering the ETH Zurich with a Moodle Quiz

open access: yesCHIMIA, 2021
The basic chemistry knowledge of first-year students in the disciplines Chemistry, Biology, Pharmaceutical Sciences, and Health Sciences and Technology has been evaluated within the first three weeks of the Fall semester with a Moodle-based quiz at ETH ...
Markus Müller   +2 more
doaj   +1 more source

A Novel Modelling Process in Chemistry: Merging Biological and Mathematical Perspectives to Develop Modelling Competences

open access: yesEducation Sciences, 2021
Models are essential in science and therefore in scientific literacy. Therefore, pupils need to attain competency in the appropriate use of models. This so-called model–methodical competence distinguishes between model competence (the conceptual part ...
Vanessa Lang   +4 more
doaj   +1 more source

Visualização no ensino de química: apontamentos para a pesquisa e desenvolvimento de recursos educacionais

open access: yesQuímica Nova, 2013
Visualization is a fast-growing field in science education. This review covers 171 articles published between 2001 and 2010 in 14 science education journals.
Leila Cardoso Teruya   +3 more
doaj   +1 more source

DESENVOLVIMENTO DE EXPERIMENTO DIDÁTICO DE ELETROGRAVIMETRIA DE BAIXO CUSTO UTILIZANDO PRINCÍPIOS DA QUÍMICA VERDE

open access: yesQuímica Nova, 2016
In this paper, we describe the development of low-cost teaching experiments of electrogravimetry for undergraduate students using principles of green chemistry.
Guilherme Antonio Finazzi   +3 more
doaj   +1 more source

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