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Caracterização química e potencial energético da biomassa derivada da casca de coco verde
(Universidade Federal de São Carlos, 2025-04-17) Martins, Luís Henrique Pereira; Gomes, Janaina Fernandes; https://lattes.cnpq.br/6718634914051168; https://orcid.org/0000-0002-9542-8944; https://lattes.cnpq.br/5166997488299326; https://orcid.org/0009-0004-1011-1457
Since the end of the 20th century, growing concerns about rising greenhouse gas emissions and the resulting global warming have driven the search for renewable energy sources, such as solar, wind and biomass, the latter mainly involving the burning of organic matter from wood waste. In this context, biomass derived from coconut husk bagasse, although less explored compared to other sources, such as sugarcane bagasse, eucalyptus firewood and agricultural waste, has emerged as an alternative for the production of renewable energy. In addition to its energy potential, the use of coconut husk bagasse can contribute to promoting environmental sustainability, particularly in urban areas where excessive disposal of coconut waste becomes a problem. Locations such as kiosks and coconut processing facilities are often responsible for high volumes of waste that could be used to reduce the accumulation of garbage and, at the same time, provide a source of renewable energy. Investigating green coconut bagasse is essential to understanding its chemical composition and its potential as a biomass. Thus, the objective of this work is to study the chemical composition of green coconut bagasse based on the procedures of specific standards of ABNT NBR. This analysis allows the evaluation of the presence of water (moisture), cellulose and lignin, in addition to potentially significant levels of carbon and nitrogen, essential elements for determining the energy potential of the material. Based on these results, the possibilities of using green coconut bagasse as a sustainable source of energy in industrial and/or commercial applications will be explored, aiming to advance discussions on the diversification of the Brazilian energy matrix and possible strategies for mitigating the environmental impacts associated with conventional energy sources.
Seleção de conteúdos no curso de iniciação musical para crianças do programa Guri
(Universidade Federal de São Carlos, 2025-04-17) Bergantin, Eglem das Neves; Galizia, Fernando Stanzione; https://lattes.cnpq.br/4007795540173093; https://lattes.cnpq.br/4697488433273341
This study was based on the question “What, why and for what purpose do teachers of the Guri’s Musical Initiation for Children (GMIC) course teach what they teach?” Based on this question, the general objective of this research was to investigate, from the teachers’ perspective, the content selection process in the GMIC course. As specific goals, we aim to: identify which contents are worked on by teachers; investigate why they select these contents and why they consider them valid musical knowledge for GMIC; and verify, in their opinion, what is the purpose of the music teaching they carry out. As reference authors, we based ourselves on Gimeno Sacristán (2013) in the area of curriculum, Zabala (1988) on the typology of content, Contreras (2002) and his conception of professional autonomy of the teacher, Libâneo (2013) and the criteria for content selection, Chervel (1990) and Goodson (1995) in the field of the history of subjects, Fonterrada (2008) on the history of music education in Brazil, and Keith Swanwick (1979) and his C(L)A(S)P model. As a data collection method, we used the semi-structured interview, a method in which six teachers of the GMIC course, from different locations in the State of São Paulo, were interviewed. The analyses demonstrated that there is a strong influence of the conservatory model in the GMIC course. However, the characteristics of the conservatory model coexist with the approaches of active methods in music education, pointing to a transition phase in the conception of music teaching for children. We found in the data that the basic musical parameters are hegemonic content and inherited in music teaching for children; also, we notice the imbalance between musical activities in the curriculum (mainly, the low presence of composition), the loss of teacher’s autonomy due to structural issues of Guri, and the fragility of the professional area of music teaching.
Investigação de precocidade por meio do Inventário Portage Operacionalizado em uma criança na creche
(Universidade Federal de São Carlos, 2025-04-17) Oliveira, Maria Isabela de; Rangni, Rosemeire de Araújo; https://lattes.cnpq.br/6399149504309769; https://orcid.org/0000-0002-8752-9745; https://lattes.cnpq.br/6754671018070505; https://orcid.org/0009-0001-0451-0839
Early identification and pedagogical support for students with precocious characteristics in the various areas of ability are recommended by specialized literature, however, this task comes up against a lack of instrumentation for this purpose. With this in mind, the general aim of this research was to investigate indicators of precocity in a child of nursery school age, using the Inventário Portage Operacionalizado (IPO) and, specifically, to check whether the signs of precocity in a child of nursery school age, previously assessed, were still present. The methodological design used was exploratory-descriptive and longitudinal research. A three-year-old child took part in the study with her mother and teacher as sources of information. The results obtained were: i) Motor development showed approximate scores for her age group (14 points out of 15) and more than 80% beyond her age; ii) in Language, in her age group (14 points out of 15) and more than 80% beyond her age; ii) in Language, the child scored beyond her age group (12 points out of 15); iii) in Self-care, she achieved the expected score for her age group (13 out of 14 points); iv) in Socialization, the child obtained 9 expected points out of 11 and more than 50% expected beyond her age; and v) in Cognition, the child scored 20 out of 24 points expected for his age group and 67% above. The conclusion is that, at the time research, the child aged three years and five months showed characteristics superior to her age group, as observed through the IPO, and the instrument proved to be effective in signaling early potential in nursery children.