Results 51 to 60 of about 402,892 (264)
ESTUDOS ENVOLVENDO LINGUAGEM E EDUCAÇÃO QUÍMICA NO PERÍODO DE 2000 A 2008 - ALGUMAS CONSIDERAÇÕES
Ensaio Pesquisa em Educação em CiênciasA incorporação dos trabalhos de Lev S. Vigotsky às pesquisas em ensino de Ciências gerou articulações entre linguagem e Educação Científica no sentido de se estudar a utilização e papel das analogias nesse contexto e o discurso, leitura e escri ta no ...
Cristhiane Cunha Flor, Suzani Cassiani
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Química Nova, 2005 In this work we describe an experiment for the thermal cracking of octane and heptane and the qualitative analyses of the products using the Baeyer test for unsaturated compounds and gas chromatographic analyses.
Silvio Cunha +5 more
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A simple theoretical, quantitative approach to help understand the titration of weak acids and bases
Chemistry Teacher International, 2021 What happens at the very beginning of the titration of a weak acid or base is a question sometimes asked by undergraduate students when introduced to the concept of buffer solution.
Arocena Miguel
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Modulation of Homer1 EVH1 domain internal dynamics by putative autism‐associated mutations
FEBS Letters, EarlyView.The putative autism‐associated M65I and S97L variants of the EVH1 domain of the postsynaptic scaffold protein Homer1 do not exhibit substantial changes in their overall structure or partner binding. Both of them, but especially the M65I variant, show altered internal dynamics relative to the wild‐type domain on the μs‐ms timescale, indicated by the ...
Fanni Farkas +6 more
wiley +1 more source
Química Nova, 2003 The toxic heavy metals can not be transformed in other less toxic substances as organic wastes through chemical process. Various chemistry courses at Faculty of Philosophy, Sciences and Humanities (FFCLRP/USP) use heavy metals in their experimental ...
Abreu Daniela Gonçalves de +1 more
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From mice to humans—divergent strategies for intestinal homeostasis and regeneration
FEBS Letters, EarlyView.Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa +2 more
wiley +1 more source
Chimia, 2021 The transfer of electrons and protons is compared. Electron transfer over long distances is possible through a series of relays. The range of proton transfer is an order of magnitude less than for electrons but it may be directed along hydrogen bonds.
openaire +1 more source
Modelling stem cell differentiation related processes—A practical overview for biologists
FEBS Letters, EarlyView.Stem cell differentiation is complex and difficult to control experimentally. This review introduces suitable computational modelling approaches that can support stem cell research, from mechanistic ODE and abstract models to multiscale and deep learning methods.
Ricco Zeegelaar +4 more
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FEBS Letters, EarlyView.The process of internalization of the Shiga toxin A subunit via formation of a complex with the Shiga toxin B subunit, which specifically binds to the Gb3 receptor. The peptide is designed to act as a carrier of drugs into cancer cells. Here, we explored the potential of peptides derived from the catalytic A subunit of Shiga toxin (STxA) to be drug ...
Giulia Opassi +6 more
wiley +1 more source
Chemistry Education for Sustainability: Assessing the chemistry curricula at Cardiff University
Educación Química, 2013 As more universities become interested in, and engaged with, sustainability, there has been a growing need to assess how their curricula addresses sustainable development and its myriad issues.
Mary Katherine Watson, Rodrigo Lozano
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