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Projeto e avaliação de desempenho de um amplificador de áudio sem realimentação negativa global utilizando transistores bipolares de junção
(Universidade Federal de São Carlos, 2023-09-01)
Santos, Vinícius de Castro Martins dos
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De Francisco, Carlos Alberto
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https://lattes.cnpq.br/1246572405382250
;
https://orcid.org/0000-0001-6472-5957
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https://orcid.org/0000-0003-4053-910X
This work proposes the development of an audio amplifier without global feedback using bipolar transistors of junction. It will be used as the basis of the article “A design methodology for audio amplifiers without global negative feedback: proposal and validation” Visintin et al. (2022) in order to perform a comparison between amplifier approaches using transistors field effect and bipolar junction transistors. The present study aimed to develop a circuit class AB audio amplifier, with 50Wrms at 8Ω for this, three stages with bipolar transistors of junction operating with symmetrical voltage of ±90V and in the voltage gain stages and ±45V in the output stage. The practical results satisfied the design requirements, such as: Slew Rate above 3.6V/μs (53.77V/μs), cutoff frequency higher above 40kHz (342kHz), Total Harmonic Distortion below 0.5% (0.0978% average at 50W). Also, to ensure that the amplifier projected presents a good linearity, the intermodulation distortion in 50W (-46.08 dB) was measured. In this way, the effectiveness of the proposed method for the design of audio amplifiers without global negative feedback using bipolar transistors of junction.
Análise espacial da tuberculose infantil no estado de São Paulo
(Universidade Federal de São Carlos, 2023-09-01)
Carasek, Vinicius Paglione
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Istilli, Plínio Tadeu
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https://lattes.cnpq.br/8530255228781534
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https://orcid.org/0000-0002-8008-6523
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Yamamura, Mellina
INTRODUCTION: Tuberculosis (TB) is a preventable and curable disease, but it continues to impact the lives and development of millions of children and adolescents. Each year, they account for around 11% of all TB cases worldwide, and approximately 1.1 million children and young adolescents under the age of 15 fall ill with TB every year. OBJECTIVES: To analyze the spatial distribution of notified cases of childhood tuberculosis from 2011 to 2022 in the state of São Paulo. METHODS: This is an ecological, descriptive study that used secondary data from notifications of childhood TB cases (<14 years) in the 645 municipalities of the state of São Paulo, which is the most populous state in Brazil. Case data was collected online from the DATASUS/TABNET website and the population was considered according to information from the Brazilian Institute of Geography and Statistics for the 2010 demographic census. To adjust for current data, the percentage of growth was added according to the institute's own population estimates. For better understanding of the occurrence of the event and control of the homogenization of the findings, the data was divided into three time periods: P1 (2011-2014), P2 (2015-2018) and P3 (2019-2022). Descriptive statistics were then analyzed, followed by the application of exploratory spatial analysis called the Global and Local Moran's Index using pre-established neighborhoods to confirm the existence of spatial autocorrelation of the cases. Maps with the spatial association index (LISA) were then constructed using ArcGis software to illustrate the findings. As this is a study involving open access secondary data, there was no need for ethical evaluation. RESULTS: In P1, 1,999 cases of childhood TB in children under 13 were identified in the municipalities of São Paulo; in P2 there were 2,222 cases and in P3 1,806 cases. Spatial autocorrelation was confirmed in all periods using the Global Moran's Index, which showed the following values respectively: P1: 0.166, P2: 0.064 and P3: 0.069. The analysis of the Local Moran's Index, as shown in Figure 1, shows the municipalities with a spatial association between their first-order neighbors according to the period of analysis. CONCLUSION: It was possible to highlight that there is still a high occurrence of childhood TB cases in the state of São Paulo, with heterogeneous distribution and spatial autocorrelation. There are specific municipalities that need to intensify their TB control strategies, due to the fact that the presence of childhood TB cases is an indication that TB control actions in adults are not being carried out effectively enough.
Desafios da introdução das práticas ESG no âmbito empresarial
(Universidade Federal de São Carlos, 2023-09-01)
Inacio, Huanderson Luiz
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Bourscheidt, Vandoir
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https://lattes.cnpq.br/8224261649535795
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https://orcid.org/0000-0001-5419-323X
The present work brings an overview of business organizations and their different actions on ESG (Environmental, Social and Governance), showing different ESG concepts and metrics and how the connection between these three parts of a whole is intrinsic and need to walk together in order to reach the sustainability among themselves. Actions of an environmental nature will influence social well-being, but such actions will only be possible with competent governance, leading the Environmental Manager and Analyst to have a broadly distributed vision between these three concepts.
Paciente em terapia nutricional enteral domiciliar: vídeo educativo sobre os cuidados e manutenção com a sonda enteral
(Universidade Federal de São Carlos, 2023-09-01)
Wada, Beatriz Fernandes
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Girão, Fernanda Berchelli
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https://lattes.cnpq.br/9999840170649511
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https://orcid.org/0000-0001-7229-0519
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https://lattes.cnpq.br/6030698338788313
Objective: construction of an educational video on the care and maintenance of the enteral tube aimed at family members and caregivers of patients undergoing Home Enteral Nutritional Therapy. Method: methodological study, developed in three phases: phase 1 saw the structuring of the script and storyboards of the video, in phase 2 the construction of the video was carried out and, in phase 3, the video was validated by professional judges and service users. Results: the video was created and validated by 8 professional judges and 8 patient care judges. As an agreement criterion, a minimum index of 0.80 was established for each item evaluated, as a result of which all items had a Content Validity Index of 1.0. The descriptive suggestions made by the judges were analyzed, and, when appropriate, they were changed in the video. Final conclusions: it is concluded that the educational video was prepared and validated, being suitable for dissemination and availability to caregivers. The publication of the educational video for caregivers or family members of patients will help strengthen health education and expand their knowledge and skills, which favors care and the provision of assistance, in addition to strengthening the professional and caregiver relationship.
Trabalho de base: experiências e memórias de militantes políticos durante a ditadura militar no Brasil e atuação pós-ditadura
(Universidade Federal de São Carlos, 2023-09-01)
Ikedo, Fernanda
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Melo, Teresa Mary Pires de Castro
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https://lattes.cnpq.br/0960053614310334
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https://orcid.org/0000-0003-3893-1962
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https://lattes.cnpq.br/3340025741821079
This dissertation presents narratives from political activists about the groundwork during the military dictatorship (1964-1985), as well as their actions after that period. The objective is, based on these experiences and memories, to rescue and analyze the narratives and reflections of the interviewees and the interviewee seeking to understand these political subjects in their formation, action, and historical context. We use Oral History as a methodology for sensitive listening (Rovai, 2021) and the transcreative act after the journey (MEIHY, SEAWRIGHT, 2021). The interviewees heard here - Celeste Fon, Pedro Pontual, Ranulfo Peloso and, Carlos Alberto Libânio Christo, Frei Betto - faced the military dictatorship and actively participated in the country's re-democratization process, acting with the formation-organization-action tripod through popular education as a pedagogy to do the essential work. The theoretical, interdisciplinary foundation brings the concepts of experience and memory. It discusses the categories brought up by the narratives, such as political formation, amnesty, social struggle, and criticism of removing the bases with a focus on political institutionality.
A aplicação da biblioterapia para crianças no ambiente da biblioteca pública: relato de experiência de estágio na Biblioteca Municipal de Ibaté
(Universidade Federal de São Carlos, 2023-09-01)
Lumini, Lara
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Gracioso, Luciana de Souza
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http://lattes.cnpq.br/4898201916360294
Bibliotherapy is a broad concept that combines subjects such as therapy and books. There is a wide range of possibilities for therapeutic activities involving books, stories, and even poetry to support people who are experiencing difficult situations and seeking an alternative form of assistance to address their problems. The concept of Bibliotherapy is associated with therapeutic practices and with the understanding that reading can reinforce the idea that no one is alone, particularly when individuals identify with characters or other people facing similar challenges. This study aimed to analyze the impact of Bibliotherapy in a public library setting attended by children seeking refuge from their daily routines and the demands of school life. The methodology was structured in three stages. Stage 1 consisted of conducting bibliographic research on the concept of Bibliotherapy, Social Librarianship, and studies concerning school-age children. Stage 2 involved documentary research on statistics related to the use of the collection of the Ibaté Municipal Library. Stage 3 consisted of developing and conducting bibliotherapeutic sessions with first-grade elementary school children at the Ibaté Municipal Public Library. The analysis showed that the children who participated in the bibliotherapeutic activities appreciated being listened to and sharing their personal experiences in a safe environment whose purpose was to provide support, understanding, and assistance in recognizing and interpreting their emotions. In addition to creating a sense of comfort among participants, Bibliotherapy may also have a remedial effect, since sharing concerns, fears, insecurities, and personal experiences can help individuals understand that they are not alone and that others may identify with the same feelings of distress.
Elaboração de estratégia de marketing de conteúdo para o Instituto Brasileiro de Ecopsicologia e sua biblioteca digital
(Universidade Federal de São Carlos, 2023-09-01)
Chitacumula, Alice de Carvalho
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Zafalon, Zaira Regina
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https://lattes.cnpq.br/1584935790390793
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https://orcid.org/0000-0002-4467-2138
This research investigates the development of content marketing strategies in an information unit, seeking to understand their viability for promoting services and the site's authority in the digital world. Content marketing has been highlighted as an approach to strengthening the relationship between organizations and their target audience. In the context of information units, which include libraries, documentation centers and information services, the adoption of content marketing strategies offers the opportunity to optimize communication, disseminate relevant information and attract new users. The research employs a methodology that involves a qualitative, applied and exploratory analysis. It also manifests methodological procedures with bibliographical, documentary, field research, case study and action research characteristics. Initially, a literature review was carried out to map out the main concepts related to this area of activity. This was followed by a study of the digital landscape of the Brazilian Ecopsychology Institute (IBE) and the Ecopsychology Digital Library (BDE) to understand how and if this digital marketing strategy could be implemented.
Desenvolvimento de transistores de efeito de campo a partir de monocamada de WS2 sobre hBN em substrato de óxido de silício
(Universidade Federal de São Carlos, 2023-09-01)
Assis, Arthur Francisco Carrapato
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Barcelos, Ingrid David
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https://lattes.cnpq.br/8297155290206349
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https://orcid.org/0000-0002-5778-7161
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Galeti, Helder Vinicius Avanço
The discovery of graphene triggered a significant increase in research related to two-dimensional materials. Among them, transition metal dichalcogenides, 2D materials referring to groups 4-7 of the periodic table with layers made up of covalent bonds between the transition metal and the dichalcogen with hexagonal packing. Tungsten disulfide (WS2) has the characteristic, in the format of a single atomic layer, a direct gap between conduction and valence bands with values close to 2 eV. As it is a semiconductor material, WS2 can be used in some applications, such as electronic devices. One of them, essential for electronic equipment such as computer motherboards and chips, is the field effect transistor. Its mode of operation is to regulate the electrical current that passes between 2 terminals, called drain and source, using the controlling variable, the electrical voltage at one of its terminals called gate. The main objectives of this work were the manufacture of field effect transistors using WS2 on an insulating material with few atomic layers, hexagonal boron nitride (hBN), on a silicon substrate with deposited silicon oxide, using beam lithography. electrons, and their electrical characterization. Furthermore, it was also an objective to use non-destructive methods to characterize WS2, such as photoluminescence and Raman spectroscopy. At the end of the characterizations, they were compared with different bibliographies to attest to the viability of this methodology and the functioning of the manufactured transistors.
Melhoria do simulador do sistema turbogerador
(Universidade Federal de São Carlos, 2023-09-01)
Fratini, Marcelo Henrique Canciano
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França, Celso Aparecido de
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https://lattes.cnpq.br/4547836128892982
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https://orcid.org/0000-0003-2235-9551
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https://lattes.cnpq.br/5871588107002004
The turbogenerator system, comprising a crucial turbine and generator component in power generation systems, along with an initial boiler, has seen advancements in technology over the years, leading to new possibilities in system control. However, before implementing these controls in the final system, validation becomes necessary. To achieve this, a turbogenerator system simulator was developed using a Programmable Logic Controller (PLC) and a Human-Machine Interface (HMI). Nevertheless, the current simulator faces challenges in accurately reproducing real system behaviors and maintaining computational efficiency for simulations. Such limitations may result in imprecise and inadequate outcomes, hindering the analysis of various turbogenerator operational scenarios, and prolonging Factory Acceptance Testing (FAT) for electrical panels storing the system's control, encompassing PLC, HMI, Speed Regulator, Protection Relays, and other components based on complexity. This work aims to enhance the simulator, addressing these limitations, to reduce engineering time for validating new controls and improve FAT efficiency. Assessing the necessary improvements for the simulator, some limitations in analog inputs and outputs hindered the implementation of all enhancements. Therefore, focus was placed on impactful improvements, including two controls: Digital Synchronizer and Load Control (DSLC) by Woodward for load control and Woodward's 505 model for power control. The simulator's PLC is WEG PLC 300, and the WEG HMI was utilized, with improvements made in ladder language to match the existing code. Testing DSLC control necessitated revising the previous code due to deviations from expectations. Power control with the speed regulator showed oscillation of 1.24% above and 0.72% below the desired value, with an error of approximately 0.98% during testing. Moreover, load control with DSLC revealed that higher simulated loads increased oscillation rate and control error. In conclusion, the implemented simulator improvements signify significant strides in understanding and optimizing the turbogenerator system, resulting in more efficient FAT work and reduced engineering time investment in this process.
Mediação de leitura e narração de histórias: relato de experiência de um graduando contador de histórias
(Universidade Federal de São Carlos, 2023-09-01)
Silva, José Everson Ferraz da
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Gracioso, Luciana de Souza
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https://lattes.cnpq.br/4898201916360294
The mediation of reading is understood as one of the prominent activities of the librarian, as it establishes a dialogical relationship and encourages reading, and consequently, promotes the expansion of worldview, being developed both in the physical and digital environment. For this purpose, two mediation practices for reader formation are highlighted: reading aloud and storytelling, both carried out with the assistance of children's and youth literature, or through the orality and performative art of storytelling. Based on this reflection, the work is configured as an experiential report, based on a literature review, with the aim of mapping the experiences lived by the author, whether in person or virtually, emphasizing the participation of library science students as storytellers. The specific objectives were: to present a detailed description of the activities carried out to promote reading, and possibilities for action in the undergraduate field; to promote discussion about quality children's and youth literature and its use in reading mediation; to develop content that can be consulted by interested students, motivating them to get involved in reading mediation projects during their academic training; to strengthen the involvement of library science professionals in reading and storytelling practices, while engaging in dialogue with authors from other fields of study. With that, the research used a qualitative approach, being a theoretical study, with procedures for data collection of bibliographic nature, and descriptive, through personal archival content, presented, analyzed and discussed through the Experience Report (ER). The results showed that there are several possibilities for the undergraduate student in Library Science to engage in reading incentive practices, and that such experiences foster the cognitive, affective, and symbolic dimensions of reading mediation, as well as explore literary, artistic, educational, and technological aspects. It is concluded that it is possible and essential for the Library Science student to participate in cultural projects for reader formation, especially through storytelling and shared reading, acting in different contexts. Furthermore, it is noted that the theoretical and descriptive systematization of this work can collaborate and motivate other aspiring librarians to get involved and participate in projects like the ones mentioned in this material, encompassing different supervised internships, extension projects, and complementary activities, resulting in an enriching experience during their academic training.
Leitura emergente de palavras dissílabas via pareamento de estímulos com resposta de orientação
(Universidade Federal de São Carlos, 2023-09-01)
Teixeira, Paula Oliveira
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Souza, Deisy das Graças de
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https://lattes.cnpq.br/4404800720856419
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https://lattes.cnpq.br/6690011410536538
This study investigated the effectiveness of the stimulus pairing procedure using orientation response (SOresp) with 8-year-old children enrolled in the 3rd grade of elementary school, who were unable to read written words. The sessions were conducted remotely during the COVID-19 pandemic and in person at the participants’ school. The participant who participated remotely had access to the experimental tasks through a researcher's computer, while the others participated in person at the school's multipurpose laboratory. The stimuli consisted of nine written words and their corresponding pictures, divided into three sets, as well as six control words, not paired with pictures. A multiple-probe design was used between the sets: the 15 words were probed before and after teaching each set. Each session included a reading pretest, word-picture pairing phase, and posttest. Each teaching trial began with the presentation of a fixation cross in one of four positions on the screen. Clicking on the cross produced: a) the written word in the same position as the cross for 1 second; b) a 750 ms interval; c) a picture corresponding to the word in the same position. Each word-picture pairing (S-S) was presented in 10 trials, alternating with trials of the other pairs. All participants initially showed poor performance in the word probes. In subsequent probes, they were able to read most of the words included in the pairings, but none from the set(s) not yet taught. The conclusion of the experiment is that the SOresp is a useful methodology for teaching reading.
Determinação de elementos potencialmente tóxicos em amostras de ovos e carapaças de tartarugas visando monitoramento ambiental
(Universidade Federal de São Carlos, 2023-09-01)
Etto, Pedro Vítor Gonçalez
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Pereira Filho, Edenir Rodrigues
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https://lattes.cnpq.br/3394181280355442
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https://orcid.org/0000-0003-0608-0278
The development of society as we know it today requires investment in the exploitation of natural resources. A large part of Brazilian and international industry is dependent on raw materials such as iron, the most widely used and exploited metal in the world. To obtain minerals, however, it is necessary to prepare the site to be exploited, so the construction of dams for waste is essential. As these metals are not found in pure form and the transformation processes generate potentially toxic by-products, it is expected that the waste will be treated and kept away from living beings. However, this is not always respected, and this waste contaminates ecosystems, so physical or chemical methods are used to treat and identify the contaminants. This work aims to use ICP OES, an analytical technique, to identify and quantify potentially toxic elements in living organisms in order to carry out environmental monitoring. The results quantified the chemical elements of interest and point to possible contamination of the turtle species studied.
Gênero como construção social: elementos constituintes para o ensino de ciências
(Universidade Federal de São Carlos, 2023-09-01)
Alboredo, Bruna Dias
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Lopes, Nataly Carvalho
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https://lattes.cnpq.br/0285391776145231
Although gender is defined as a social construction, which reflects social markers, it is necessary to understand in more depth how this construction occurs in different cultures and historical contexts, especially in science education and teaching. In this work, we aim to analyze how research in science teaching has been working gender over time, based on a bibliographical survey, interpreting elements that may contribute to these discussions. For that, we try to present several definitions of gender that configure it as a socially constructed category, in addition to showing the importance of education against barbarism in the anti-gender discourse. The research methodology used was bibliographical research, through the CAPES journal portal, and the data analysis methodology was discursive textual analysis (DTA). According to the data analysis, 4 metatexts were produced. It was possible to conclude that research in science teaching has not been working on the gender issue, because of the little importance given to the theme and the moral panic around this concept.
Contribuição da biblioteconomia para a visibilidade das incubadoras de empresas brasileiras
(Universidade Federal de São Carlos, 2023-09-01)
Lorevice, Natália Cristina
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Zafalon, Zaira Regina
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https://lattes.cnpq.br/1584935790390793
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https://orcid.org/0000-0002-4467-2138
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https://lattes.cnpq.br/3415315521536631
Brazilian business incubators are organizations that provide logistical, technical and managerial support to entrepreneurs with the aim of facilitating the creation of companies that carry out activities focused on innovation. The website Mapa Associados of the Associação Nacional de Entidades Promotoras de Empreendimentos Inovadores (Anprotec) provides data on different innovation environments, including incubators. However, some limitations were observed in the presentation of data on this portal: to view data from innovation environments, the system offers the user only four filters: environment, region, state and city. When applying the filters and selecting one of the listed incubators, the system displays a dialog box with the name of the incubator, its e-mail and its website. Therefore, there is absence of data that may be of interest to users, such as the type of incubators, the year of its creation, the managing entity. The system also does not allow browsing through available information or searching by area of expertise, for example. Given this fact, the study proposed to discuss the following research question: what is the contribution that Librarianship can make to increase the visibility of Brazilian business incubators? and it had as a main objective, to identify contributions from Librarianship to the visibility of Brazilian business incubators. The research is of applied nature, with qualitative approach, exploratory objectives and bibliographic procedures, with the adoption of the literature mapping method, and documentary procedures, with consultation on the incubators' websites. The social role of business incubators and the role of metadata in information architecture and information findability were discussed based on bibliographical research. The study also resulted in a proposal for guidelines for cataloging Brazilian business incubators, based on the comparison between the data obtained from consulting the incubators' websites and the description elements prescribed by the MARC 21 Community Information. As a conclusion, it was found that the application of these guidelines in an informational environment could expand the possibilities for searching and retrieving information about incubators, improving the presentation of results and increasing their visibility.
Estudo do Comportamento do Aço Inoxidável Austenítico AISI 321 Nitretado e Nitrocementado a Plasma Sob Solicitações de Desgaste, Corrosão e Fadiga
(Universidade Federal de São Carlos, 2023-09-01)
Manfrinato, Marcos Dorigão
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Florêncio, Odila
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https://lattes.cnpq.br/9659972316642270
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https://orcid.org/0000-0003-3655-4470
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Kliauga, Andrea Madeira
The AISI 321 austenitic stainless steel is used in the chemical, petrochemical and fertilizer industries, as it can operate at high temperatures (above 600 °C) and under corrosive media. However, it has poor tribological properties. Thermochemical plasma nitriding and nitrocarburizing treatments are used to increase surface hardness, fatigue resistance, wear resistance and not deteriorate its pre-existing corrosion resistance. Treatment parameters such as time, temperature, gas mixture and pressure can change the composition of the layer formed in plasma nitriding and nitrocarburizing treatments. The present work aimed to evaluate the influence of plasma nitriding and nitrocarburizing temperatures on the formation, microstructure and ductility of layers in AISI 321 austenitic stainless steel and verify their performance when subjected to cyclic polarization corrosion, abrasive microwear with fixed sphere, rotary bending fatigue, spherical contact fatigue and multiple scratching and indentation tests. X-ray diffraction demonstrated that the expanded austenite phase rich in interstitial solutes (nitrogen and carbon) formed on the surfaces treated at 400 °C and that, for treatments at 500 °C, this phase decomposed into CrN and '-Fe4N. The expansion of the crystal lattice at 400 °C was greater for the nitrocemented samples than for the nitrided ones, both samples had the same layer depth. At 500 °C, the layer depth was greater for the nitrocemented samples, as was the layer hardness. In the cyclic polarization corrosion test in a medium of 3.5% NaCl, the nitrocarburizing treatment showed the highest corrosion potential (Ecorr) and the highest pitting potential (Epite) about the other treatments, therefore presenting the greatest resistance to corrosion. Corrosion resistance was lower for treatments carried out at 500 °C to the base material. For mechanical behavior and wear tests, all layers performed better than the base material. In nanohardness measurements, the relationships between hardness (H) and apparent modulus (E), the H/E and H3/E2 relationships indicate the deflection capacity, the capacity to absorb elastic energy and plastic work. The nitrocemented layer at 400 °C showed greater ductility and greater deformation capacity, without showing spalling or cracking, which resulted in better performance in the spherical contact fatigue test, the lowest wear rate 3.95x10-7 mm3/Nm, high fatigue limit (280 MPa), as the layer presents greater plastic work on the surface. In terms of resistance to microwear, treatments at 500 °C showed lower wear resistance than treatments carried out at 400 °C due to greater brittleness resulting from the decomposition of expanded austenite into ’-Fe4N and CrN. Microcracking and peeling of the layer were the wear mechanisms observed in the abrasive microwear tests with a fixed sphere, rotary bending fatigue, spherical contact fatigue and multiple scratching tests. The layer nitrocemented at 500 °C presented a higher fatigue limit (285 MPa) as it presented the greatest layer thickness, lowest transition gradient and hardness throughout the layer, greatest hardness and therefore probably presents the highest level of compressive residual stress that contributed to this greater value. The hybrid treatment of nitrogen and carbon diffusion, nitrocarburizing, at 400 °C showed the best performance in the corrosion test, spherical contact fatigue, abrasive microwear and scratching test as the layer has greater ductility.
Isolamento e caracterização de fungos endofíticos associados a Paspalum atratum Swallen e Paspalum notatum Fluggé com potencial biotecnológico e agrícola para promoção de crescimento vegetal e biocontrole
(Universidade Federal de São Carlos, 2023-09-01)
Pedrino, Isadora Camargo
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Lacava, Paulo Teixeira
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https://lattes.cnpq.br/8947678349043750
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https://orcid.org/0000-0001-7166-606X
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https://lattes.cnpq.br/3184760872628758
The genus Paspalum sp. participates in the composition of pastures throughout the American continent, being adapted to different environmental conditions. Paspalum atratum is a species that adapts to rough soils with low fertility and seasonally flooded. Paspalum notatum is a species adapted to dry soils, flooded soils, and soils with low fertility. Often found in disadvantageous situations, endophytic fungi may be responsible for assisting in the maintenance of vegetables, as these microorganisms reside inside plants, increasing resistance to abiotic and biotic stresses. The use of fungi with the ability to promote plant growth and carry out biocontrol are strategies to replace widely used chemical fertilizers, insecticides, and fungicides, as well as to meet the demands of plants in a more effective and sustainable way. The present study aimed to isolate and characterize endophytic fungi associated with P. atratum and P. notatum and to evaluate the inorganic phosphate solubilization potential (SFI) and the antagonistic potential against phytopathogens. Fungi were isolated from roots and leaves, and tested in vitro for SFI and antagonism against phytopathogenic fungi Bipolaris sp. and Colletotrichum sp. Among the 385 fungal isolates obtained, 213 solubilized inorganic phosphate and those that presented the best potential for SFI and antagonism against phytopathogens were identified. Identification was performed by sequencing the ITS region of ribosomal DNA, and the genera identified were Aspegillus sp., Colletotrichum sp., Fusarium sp., Microdochium sp., Neosartorya sp., Penicillium sp. and Phoma sp. as endophytes of P. atratum, and Aspegillus sp., Ceratobasidium sp., Colletotrichum sp., Curvularia sp., Fusarium sp., Microdochium sp., Penicillium sp. and Talaromyces sp. as endophytes of P. notatum.
Estágio Obrigatório Supervisionado na Secretaria Municipal de Meio Ambiente e Desenvolvimento Sustentável de São Carlos (SP)
(Universidade Federal de São Carlos, 2023-09-01)
Almeida, Leticia Kamimura
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Mattos, Sérgio Henrique Vannucchi Leme de
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https://lattes.cnpq.br/8205497519881678
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https://lattes.cnpq.br/9113362685702928
This report aims to present the activities carried out during the mandatory internship supervised at the Municipal Council for the Defense of the Environment of São Carlos (COMDEMA) and at the Municipal Secretariat for the Environment and Sustainable Development, from November 2022 to January 2023. The activities were supervised by Elen Pilegi Neves, administrative assistant and executive secretary of COMDEMA, and Anna Paula Luzia, head of the environmental information section. Carrying out the internship enabled the intern to acquire experience in the area of public environmental management, through monitoring and participation in the activities of the São Carlos Municipal Council for the Defense of the Environment, assisting in the administrative organization and monitoring the discussion of topics relevant to the municipality, such as issuing favorable opinions to requests for environmental statements from companies; definition and establishment of standards, procedures; dissemination of activities and events promoted by public institutions and non-governmental organizations. This experience was fundamental for the intern to have the opportunity to participate in the routine of a Municipal Secretariat, experiencing and deepening the knowledge acquired during graduation. Highlighting the importance of the subjects offered by the Environmental Management and Analysis course, such as environmental planning, environmental education, public policies and the implementation of all interdisciplinary projects, which help in the formation of a systemic view of our environment, as well as the problems faced in management public, such as financing, lack of planning, decentralization and popular participation.
Projeto, implementação e testes de um amplificador de áudio de alta fidelidade para fones de ouvido
(Universidade Federal de São Carlos, 2023-09-01)
Sanchez, Cassiano
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De Francisco, Carlos Alberto
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https://lattes.cnpq.br/1246572405382250
;
https://orcid.org/0000-0001-6472-5957
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https://lattes.cnpq.br/8762794018243564
In this monograph, a high fidelity audio amplifier with tone control for headphones was developed. Circuits are built on printed circuit boards using discrete components. Topologies were initially determined to be simulated and tested. A prototype was assembled in an aluminum metallic box with on and off buttons and connectors. The results obtained were satisfactory, the amplifier presented distortions below 0.5%, upper cutoff frequency above 20kHz and slew rate above the minimum required. The project met all the requirements initially determined.
O processo de desenvolvimento e aprendizado da libras por alunos ouvintes em narrações de histórias
(Universidade Federal de São Carlos, 2023-09-01)
Ribeiro, Jéssica do Amaral
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Silva, João Paulo da
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https://lattes.cnpq.br/6111069189059770
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https://orcid.org/0000-0003-0474-435X
;
https://lattes.cnpq.br/8944378293430646
The present work aims to analyze how listening students of the Libras/Portuguese Translation and Interpretation Course (TILSP) learn Libras as a second language in the classroom context, based on systematized teaching processes. More specifically, the emphasis is on learning aspects related to the use of the body and the signaling space to organize the scenarios and actions in a storytelling in Libras. The use of these resources, employed in a discursive strategy called 'demonstration' (Clark, 1996; SILVA, 2014), are elements that relate to visually perceptible aspects of the stories narrated in these languages. This work is based on other research that has already been discussing the elements that characterize the teaching of Libras in universities and on learning processes (MARTINS, NASCIMENTO, 2015). For our research, we analyzed two of my own productions in Libras, made in the course entitled “Deafness and visuality”, taught by a deaf teacher. The main activity analyzed is a video recorded on the first day of class, retold in the last class of the semester. With this, we analyzed the productions with the objective of identifying factors that show us advances in the teaching-learning process. With these analyses, we describe part of the Libras learning process in interaction and pedagogical mediation within the university.
Aetxara’u e a memória da pele ou “que faço com minha cara de índia”? : o encontro com a auto-história teoria.
(Universidade Federal de São Carlos, 2023-09-01)
Silva, Janaína
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Mendonça, Viviane Melo de
;
https://lattes.cnpq.br/4827331651090223
;
Souza, Geraldo Tadeu
;
https://lattes.cnpq.br/3516168011612531
The present interdisciplinary paper, which aims to narrate a path of resumption of indigenous ancestry, identity and spirituality (Potiguara 2004), in the structures of the production of academic knowledge - a path that is understood here as life-thought-theory. We will look at the concept of autohistoria-teoría, developed by Gloria Anzaldúa in her works; The text constitutes a dialogue with the writer, poet and indigenous activist Eliane Potiguara (Potiguara 2018), who narrates the story lived by the women in her family throughout the Brazilian colonization process, starting from her journey of resumption, whose process involves understanding herself, added the investigation of the process of forced migrations in the territories of their ancestors and the political articulation configured from the resumption; reflections on decolonizing methodologies that affirm indigenous authorship in academic research spaces . The crossroads of these three references is added to the gathering of material and immaterial traces of memory such as family objects, reports of indigenous and black women, their ancestry and spirituality practiced in their relationship with the land and with food and herbs, brought, within the scope of this research, as elements or devices of memory. As critical fabulation is a resource to face epistemicides, ethnocides, erasures and twists of history, present in this struggle between worlds and words. Like the struggle between worlds, of the nepantla condition (Anzaldúa 2005), writing as an enunciative possibility in the field of anticolonial imagination, in a transit between social and identity borders, between languages and in a continuous process of updating and reinscribing the autobiographical narrative as an affirmation of reality about our existences and ancestors.