Licenciatura em Química (UAST)
URI permanente desta comunidadehttps://arandu.ufrpe.br/handle/123456789/2945
Siglas das Coleções:
APP - Artigo Publicado em Periódico
TAE - Trabalho Apresentado em Evento
TCC - Trabalho de Conclusão de Curso
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5 resultados
Resultados da Pesquisa
Item Vermicompostagem como tecnologia aplicada à valorização da matéria orgânica de resíduos do milho, nas condições edafoclimáticas do sertão pernambucano(2019-12-11) Siqueira, Andreza Jayane Nunes de; Nunes, Ramom Rachide; http://lattes.cnpq.br/6182302726895126; http://lattes.cnpq.br/5272674335190028This research presents the vermicomposting as an environmental technology applied in the recycling and treatment of waste obtained in the maize production, taking into consideration the edaphoclimatic conditions of the Pernambuco Backwoods, under the perspective of the Environmental Chemistry. In addition, a physical and chemical study of vermicomposting were carried out. Vermicomposting is a process of biological transformation, as well as bio-oxidation and stabilization of organic matter (OM), turning it into a fertilizer of high agricultural potential. In this study, the vermicomposts were produced adding residues of corn, straw and cob, also adding goat manure and sawdust as organic substrate. In each vermicompostor 250 Eisenia fetida earthworms. were added. During the 120 days of the experiment, the following chemical attributes were analyzed: total solids (TS), pH, total organic carbon (TOC), organic matter (OM) and cation exchange capacity (CEC). The pH, TOC and OM results showed a decrease in their values during the vermicomposting process; while the CTC content increased. Both trends indicated that vermicomposts reached stability and maturity desired. In addition, worms showed good adaptation to vermicompostors. Thus, it was concluded that vermicomposting can be used as an effective technology for corn waste treatment and production of agricultural inputs. In the future, it is expected to apply the composed of new corn crops, renewing the cycle of the production chain, under conditions of cycling its organic matter and nutrients in favor of the agrarian and social development of the interior of the Brazilian Northeast.Item Análise das interações discursivas em uma oficina didática interdisciplinar sobre modelos atômicos(2019-07-10) Rezende, Luana Russana Ferreira; Silveira, Thiago Araújo da; http://lattes.cnpq.br/5110982163642369; http://lattes.cnpq.br/5110982163642369; http://lattes.cnpq.br/4751253414418946The last years, research in chemistry teaching has search to promote resources to overcome the limitations presented in the traditional teaching model and that take into account the articulation between science, technology and the contextualization with the environment that the students are inserted. Therefore, this study analyzes the discursive interactions through a proposal of an interdisciplinary didactic workshop on atomic models with students of the first (1st) year of high school of a public school of the interior state network of Pernambuco. As a foundation, important references were considered about didactic workshops and theoretical orientations on dialogicity, hermeneutics, dialectics and complexity. The research methodology included the collection of data for videography of the five (5) stages of the workshop and subsequently to the analysis of this corpus to evaluate resources, directions and construction of meanings in the dialogues in the context of the interdisciplinary didactic workshops based on the list of observables proposed by Flores (2010),taking into account the theories presented above. As a result of this research, it was possible to identify that the workshop proposal as an active methodology that contributes to the students' socialization process by stimulating the articulation between doing, feeling and acting in a certain activity in sets and for building knowledge through dialogue. It is possible to conclude that the interdisciplinary didactic workshops allow great moments of interaction between student-student and student-teacher, which it should be well planned by the teacher to work the scientific concepts addressing through themes of the student's daily life and to have the decentralization of the speeches.Item Análise do ensino das ciências e matemática em um contexto de educação quilombola(2020-11-06) Silva, John Victor de Oliveira; Silveira, Thiago Araújo da; http://lattes.cnpq.br/5110982163642369; http://lattes.cnpq.br/8190629644989342Nowadays, our country has a huge amount of Quilombola Communities approved by the Fundação Cultural Palmares, they are survivors due to the strong struggles for the recognition and guarantees of their rights. In the educational aspects, important advances have been made in recent years in their appreciation of these peoples and new demands to increasingly expand cultural and ethnic diversity in Brazil, through the implementation of PCN's (National Curriculum Parameters), where it is based on Law no. 10,639 / 2003, the Quotas Law, Quilombola Education Guidelines, among others. The general objective of this work is to analyze the teaching of science and mathematics in a school located in Quilombola Community in rural Pernambuco, based on the speech of the teachers who teach in it. For this, we use a qualitative methodology, with interviews for data collection and for the analysis we carry out the Dialectic Hermeneutic Analysis. As a result, we realized that the investigated teachers always seek to relate the scientific content with the epistemological, cultural and historical issues of the community, mainly with the use of teaching strategies to better contextualize these contents; we also noticed that they are very careful about the elaboration of their plans and the relationship between the students' daily lives and the contents proposed in the curriculum.Item Concepções sobre os papéis educativos, transposições didáticas e ensino de química no contexto da pandemia(2020-11-06) Claudino, Alice da Silva Amaral; Silveira, Thiago Araújo da; http://lattes.cnpq.br/5110982163642369; http://lattes.cnpq.br/2798830185426782In this work, we seek to analyze the didactic transpositions that occurred in the teaching and learning of chemistry in the scope of the education of the deaf in Remote Education. Understanding the role and concepts of the Sign Language Interpreter - ILS and the Chemistry teacher regarding their professional practices in building the knowledge of the deaf student, in a regular school. The research used a qualitative approach and used semi-structured interviews as a data source. For the interpretation of data we use the method proposed by Minayo, the hermetic-dialectic analysis (AHD), which understands the research subjects through all the implications: historical, sociocultural, political, economic and educational. As a result, we observed that there was no instruction or guidance on how to start Remote Education, thus demonstrating a gap in the noosphere of external didactic transposition. In face-to-face chemistry classes, visual aids were present and remotely the greatest difficulty is the impossibility of carrying out experiments. We also identified that the interpreter recognizes his role, but is covering and receiving charges that do not belong to the ILS function. Finally, we can conclude that a change is necessary in the teacher's conceptions, so as not to overload the interpreter and really inclusive actions should be considered together with the school, teacher and interpreter that will influence the teaching and learning of the deaf student.Item Explorando o potencial de pilosocereus gounellei na remoção da matéria orgânica presente em águas naturais destinadas ao consumo animal(2020-11-03) Cândido, Guilherme Henrique da Silva; Nunes, Ramom Rachide; http://lattes.cnpq.br/6182302726895126; http://lattes.cnpq.br/0555151159609370Animal welfare is a recurrent concern, relating not only the herd health, but also the animal production and the consequent profits generating in the field. Animal drinking water quality, frequently reported as of poor potability, is a challenge to be overcome, mostly due to the excess of organic matter (OM) in solution. An alternative to remove the OM is the use of an alternative material. In this study, use of cactus Pilosocereus gounellei was explored, carrying out a kinetic and adsorptive study aiming to estimate the effectiveness of the proposed technology. Samples of goat drinking water were treated using P. gounellei, in natura and acid treated (using [HCL] in the range 0.01-4.0 mol L−1). A study of the sorption process was performed, and isotherms and kinetics models were evaluated. Thus, after mathematical treatment, isotherm of Freundlich (isotherm type C, constant partition) and pseudo-second order kinetics were considered the most suited, indicating the multilayer formation and the removal rate proportional to the square of the adsorbate concentration. In addition, samples treated at higher acid concentration reached equilibrium after removing a greater concentration of OM when compared to in natura (up to 1.6x the own weight). Based on our findings, our study indicates the possibility of removing the OM present in samples of natural water, using the P. gounellei cactus (acid treated) as an alternative adsorbent material, intending to the good practices in livestock and animal welfare.