v.5 n.4 July
Parana Journal of Science and Education. v.5, n.4, July (2019).
Summary
Articles
Alireza Heidari, Jennifer Esposito1, Angela Caissutti.
Parana J. Sci. Educ., v.5, n.4, (1-28), July 2, 2019.
DOI: doi.org/10.5281/zenodo.3870727
Abstract
Spider toxins and Raventoxin are a family of proteins produced by spiders which function as neurotoxins. The mechanism of many spider toxins and Raventoxin are through blockage of calcium channels. Also, Raventoxins are neurotoxins from the venom of the spider Macrothele raveni. Parameters such as FT¬–IR and Raman vibrational wavelengths and intensities for single crystal Spider Toxin and Raventoxin are calculated using density functional theory and were compared with empirical results. The investigation about vibrational spectrum of cycle dimers in crystal with carboxyl groups from each molecule of acid was shown that it leads to create Hydrogen bounds for adjacent molecules. The current study aimed to investigate the possibility of simulating the empirical values. Analysis of vibrational spectrum of Spider Toxin and Raventoxin are performed based on theoretical simulation and FT–IR empirical spectrum and Raman empirical spectrum using density functional theory in levels of F/6–31G*, HF/6–31++G**, MP2/6–31G, MP2/6–31++G**, BLYP/6–31G, BLYP/6–31++G**, B3LYP/6–31G and B3LYP6–31–HEG**. Vibration modes of methylene, carboxyl acid and phenyl cycle are separately investigated. The obtained values confirm high accuracy and validity of results obtained from calculations.
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A construção de identidades sociais: algumas possibilidades. Uma análise do ensino de Língua Inglesa do livro didático Way to English for Brazilian Learners, de C. de P. Franco e K. Tavares - 2015, do 6º ano do Ensino Fundamental.
Fernanda Luiza Lima, Neiva Maria Jung.
Parana J. Sci. Educ., v.5, n.4, (29-36), July 2, 2019.
DOI: doi.org/10.5281/zenodo.3870731
Abstract
The teaching of English (EL) in many public schools in Paraná, especially in the cities of metropolitan regions, is included in the curriculum of basic education from the 6th year of elementary school, as a required subject. It is also observed that literate practices disregard the social discursive practices that interfere in the construction of discourses. Therefore, this research aimed to analyze the teaching proposals contained in the didactic material of the 6th year of elementary school, used to support the learning of foreign language (LE) in the public school context. Through a documentary analysis of a qualitative research, it was observed a cut of 6-year textbook (DL) of English Language (LI), proposed by the authors of the textbook Way to English for Brazilian Learners, by C. de P. Franco and K. Tavares – 2015, in order to verify if sequences didactics are proposed by the literacy, and, to what extent, it favors the construction of the social identities present in the discursive enunciations. The didactics of the observed unit proposes a work of developing linguistic and discursive abilities in a way that favors the use of LI in different situations, directing the students to recognize that texts are representations and social constructions. It is up to the teacher to seek to know better the literate practices and then (re) direct its methodology in order to signify the learning.
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Como é representado o sistema nervoso central nos livros didáticos no Brasil?
Amauri Betini Bartoszeck.
Parana J. Sci. Educ., v.5, n.4, (37-49), July 2, 2019.
DOI: doi.org/10.5281/zenodo.3870739
Abstract
Teaching the nervous system in primary and secondary school to pupils requires an approach that includes not only biological aspects as the neuron but also other subjects as Physics and Chemistry. The relationship among various concepts must be mobilized in teaching nervous system communication through neural circuits in the brain and spinal cord. Firstly, a list of categories were establish to evaluate neurophysiological concepts covered in Brazilian textbooks and secondly the actual state of the process of teaching and learning the nervous system in the textbook analyzed. It was tackled the issue of phylogenetic evolution of the nervous system and was provided an outline for teaching about the nervous system to be followed by authors in new editions of textbooks to be b adopted by schools in Brazil.
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