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Estudo da degradação do atenolol e do paracetamol em reator batelada por fotólise direta, peroxidação fotoassistida e fotocatálise heterogênea.
(Universidade do Estado do Amazonas, 2025-10-09) Gomes, Karina Palmeira; Pinheiro, Clairo Lima; http://lattes.cnpq.br/8241153587238531; http://lattes.cnpq.br/7150012175206715; Souza, Cristiane Daliasse Ramos de; Silva, Welisson de Araujo; http://lattes.cnpq.br/0656027693605032
concentrations of ng L-1 and µg L-1, wich can cause damage or even be fatal to some aquatic organisms. Conventional wastewater treatment methods are not efficient for removing these micropollutants, but new methods, such as those using Advanced Oxidation Processes, are emerging as an alternative to their degradation. Faced with this problem, this work aimed to study the degradation of atenolol and paracetamol drugs by direct photolysis, photo-assisted peroxidation (H2O2/UV) and heterogeneous photocatalysis in a photocatalytic batch reactor. The UV lamp power of 36 W, stirring of 180 rpm and initial concentration (25 mg L-1 atenolol and 15 mg L-1 paracetamol) were fixed as experimental parameters. For both drugs, a 23 factorial design without center points was applied, triplicate for atenolol and duplicate for paracetamol, through which the treatment time (60 and 120 minutes), TiO2 in suspension (absence and presence) and H2O2 (absence and presence) were studied. In addition, the temperature of the solution in the reactor was monitored and recorded, and the pH of the solutions before and after treatment was recorded as well. It was not possible to determine the atenolol degradation in the tests with absence of H2O2, because was an increase in absorbance in all of them, but in the tests with H2O2/UV, the maximum atenolol degradation (42.05%) was obtained in the 60 minutes test with TiO2 in suspension. There was maximum degradation of paracetamol (96.31%) in the 120 minutes experiment with TiO2 in suspension and presence of H2O2. Statistical analysis about paracetamol degratation showed that the influence of TiO2 was practically negligible, the time of treatment, to a lesser extent, positively influenced the process, and that H2O2 was the most influential variable on the treatment, being the only significant at a 95% confidence level. In all tests performed with both drugs, there was a decrease in the pH of the solutions after the treatment, being more accentuated in the H2O2/UV tests. From the results obtained from the experiments and statistical analyses, it was found that, in the experimental conditions of this work, the H2O2/UV method was the most efficient on the degradation of the drugs.
Cálculo v.2: Trabalhando com curvas e superfícies com o uso de software educacional
(Universidade do Estado do Amazonas, 2025-09-30) Pereira, Elainne Ladislau Ferreira
The topics covered in this work were developed in conjunction with the Calculus II course for engineering programs at the School of Technology (EST) of the University of the State of Amazonas (UEA), using more accessible language in order to fill gaps in knowledge.
Cálculo v.1: análise de gráfico de funções reais e suas aplicações com uso de software educacional
(Universidade do Estado do Amazonas, 2025-09-30) Pereira, Elainne Ladislau Ferreira
The book was written with the aim of assisting undergraduate students from a wide range of engineering disciplines, particularly those at the University of the State of Amazonas (UEA), and covers the analysis of real functions from analytical treatment to the use of GeoGebra software, with the aim of acquiring a little more knowledge about the particularities of each function, the most common being: related, linear, quadratic, in addition to trigonometric functions: sine, cosine, and tangent.
A representatividade feminina da dança do boi-bumbá no contexto sociocultural de alunas da Escola Estadual Profa. Ondina de Paula Ribeiro em Manaus/Am.
(Universidade do Estado do Amazonas, 2024-12-17) Abreu ,Jeanne Chaves de; Abreu, Jeanne Chaves de; http://lattes.cnpq.br/2707740880059445; Abreu, Jeanne Chaves de; http://lattes.cnpq.br/2707740880059445; Pinto, Amanda da Silva; http://lattes.cnpq.br/2910246309324962
The present study and the main focus of the research is anchored in the representativeness, empowerment and visibility of Amazonian women through the dance of the Queen of Folklore, item 08 of the Parintins Folklore Festival. Our main objective was to bring to the knowledge of the high school students of the State School Profa. Ondina de Paula Ribeiro, the possibilities of understanding our place as women in the Amazonian social and cultural context through the importance of this traditional figure of our folklore. The great relevance of the study was to delve into this theme in order to contribute so that young women of the present day understand the value and possibilities that each one ha through the representativeness of the feminine of Item 08 – Queen of Folklore, a mandatory item of the Boi Bumbá de Parintins. Our main purpose was to investigate and portray how this representative item can contribute to the empowerment of women in the current social context. Currently, this feminine image has become a great representation and admiration for many girls in the region who seek to be highlighted, respected,admired and revered not only as a woman of great cultural personification, but a determined, brave woman who can be whoever and whatever she wants inside and outside any arena where the show takes place. Thus, the methodological choices that were used to carry out the present research, in order to achieve all the objectives proposed by it, were historical, bibliographic, field, exploratory and descriptive, bringing to the center of discussions and practices the history, female empowerment, the movements and transformations that took place in the dance of the Queen of Folklore over time. This study is justified by the fact that we understand that in current times it is necessary to alert our women to the still very strong permanence of the regime of patriarchy and permanent and incessant gender violence throughout the national territory.
Memorial etnográfico: uma reflexão sobre princípios de arcadas e dedilhados na iniciação ao violino
(Universidade do Estado do Amazonas, 2025-06-23) Bulcão, Fabricio Cromwell Rangel.; Nevez, Hirlândia Milon.; http://lattes.cnpq.br/0363388731375717; Nevez, Hirlândia Milon.; http://lattes.cnpq.br/0363388731375717; Krastanova, Miroslava Trykova.; Soares, Bárbara Bianca Carvalho.; http://lattes.cnpq.br/7147536200590014
This study aims to investigate bowing and fingering techniques on the violin, based on literature on the music field and its pedagogy that helped in the understanding of this work, as it adopts a qualitative approach, based on bibliographic reviews and with the aim of discussing the fundamental elements that influence technical and artistic decisions related to the violinist's right and left hands. The analysis of these studies starts from the point of view that the techniques are not limited only to mechanical aspects of the instrument, but seek a planning that aims at a coherent musical interpretation. The selection of theoretical references considers renowned authors in the field of music and violin pedagogy such as Ivan Galamian, Carl Flesch and Rolland, among others. Among the results of this study are a better understanding of the use of the violinist's right and left hands, key points for beginners to start playing the violin and how left and right hand techniques contribute to sound development.