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Reorganização societária como forma de alavancar as atividades de pequenos produtores rurais brasileiros: um ensaio comparativo
(Universidade Federal de São Carlos, 2020-06-14)
Costa, Ana Raquel Fontanetta
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Carraro, Nilton Cezar
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https://lattes.cnpq.br/1772319008243508
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Ramos, Paulo Henrique Bertucci
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https://lattes.cnpq.br/0148103598149034
Brazilian agribusiness alone represents 21% of the Brazilian Gross Domestic Product (GDP), which is the sum of all the wealth produced in one year. Naturally, the demand for capital is equal to or even greater than other sectors due to some peculiarities, such as the time to obtain a complete cycle of production, which in this sector is called a harvest, and most properties can achieve two harvests a year. Therefore, it can be said that the operating cycle is over six months, demonstrating that the financial cycle is also long. Based on the need to generate resources and the need to leverage agricultural activities, especially small ones, this work aims to demonstrate how corporate reorganization can help small rural producers to acquire financial and material resources less cheaply. To this end, a synthesis of Brazilian agribusiness was carried out to demonstrate its composition and the level of participation in the economy, as well as a quick overview of the current technological stage employed, in addition to the number of entrepreneurs that exist in this sector. The following act demonstrated how the financial market operates concerning capital lending in Brazil and how corporate reorganizations can effectively assist economic activities, thus allowing a comparison between onerous and non-onerous capital, reaching the considerations that agribusiness suffers from a very large administrative restructuring and how most of these enterprises are raising funds does not favor their development. Therefore, this work opens up the opportunity for further studies with discussions linked to points that have now been highlighted.
Uma análise crítica da BNCC na área de Língua Portuguesa a partir das contribuições de Freire
(Universidade Federal de São Carlos, 2020-06-15)
Fraga, Lídice Tiede
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Silva, Antonio Fernando Gouvêa da
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https://lattes.cnpq.br/9621931288117213
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https://lattes.cnpq.br/6328648167892042
ABSTRACT FRAGA, Lídice Tiede. A Critical Analysis of the BNCC in the Portuguese Language Area from the Contributions of Freire. 2020. 89 p. (Master´s Degree in Education) - Universidade Federal de São Carlos [Federal University of São Carlos], Sorocaba campus, Sorocaba/SP, 2020. The objective of this research was to seek to understand the Base Nacional Comum Curricular (BNCC) [National Common Curricular Base] of the Portuguese Language for the final years of Elementary School, through the comparison between the general intentions of the BNCC and the specific area, using the categories of Bakhtinian and Freirean analysis: dialogism and dialogicity, and their conceptual and meaning unfolding. The objective of this work was also to investigate to what extent this document, which guides the construction of federal, state and municipal curricular, presents a theoretical-methodological discourse consistent with the contextualized concept of teaching for the adoption of a critical-dialogical pedagogical reference, committed to the construction of knowledge based on the reality of students and the voices of communities. Thus, through a qualitative approach, the analysis of the document was based on the theoretical-methodological framework of historical-dialectic materialism and Dialogical Discourse Analysis (DDA). In order to carry out the analysis, a theoretical construction was made about the history of national curriculum policies, critical and non-critical curricular conceptions, specific curriculum history of Portuguese language and explanation of the assumptions of Bakhtinians and Freireans, markers of the analytical categories listed. Still with regard to the realization of the analysis, the discourses of parts of the BNCC - general and specific part - on which the categories focused, were confronted in order to verify the enunciative coherence and whether, effectively, the basis is committed to its own educational project, based on ethical, political and aesthetic principles, of building a just society through a process of teaching and learning contextualized and dialogical. Within this perspective, this work has evidenced an internal discursive incoherence regarding the categories with radical -dialog.
Utilização de zebrafish para validação de programa computacional aplicado à análise cardíaca após administração de medicamentos cardiotônicos
(Universidade Federal de São Carlos, 2020-06-15)
Motheo, Stéphanie Ferguson
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Borra, Ricardo Carneiro
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https://lattes.cnpq.br/5655362515357840
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https://lattes.cnpq.br/0867406777638908
The zebrafish (Danio rerio) is a vertebrate widely used as a model for laboratory tests, due to its high fertility, practical handling and low cost. The cardiac characteristics of this species, as well, as the easy absorption of substances present in the water by the tissues of different organs, makes it an excellent model for cardiotoxicity studies. Thus, the present study aims to validate a program (CardioCount v2.0) capable of detecting cardiac changes like, intervals of cardiac contraction and contraction patterns in zebrafish larvae. For this, four substances (dopamine, atropine, adrenaline and haloperidol) were selected, to which zebrafish larvae were exposed in different concentrations. Through filming, the 60 larvae with 96 hpf were anesthetized by immersion of 0.7 M tricaine methanesulfonat, filmed and analyzed for variations in heart rate, entropy and possible cardiotoxicity, with 1% DMSO as control. Tests performed with dopamine showed a significant change in the concentration of 2.5 µM with respect to entropy; in the case of adrenaline, all doses resulted in an increase in HR except for 1.0 µM; with respect to atropine, at the dose of 2.50 µM there was an increase in entropy and, in the test with haloperidol, there was a greater dispersion of effects and a greater dependence on the concentration value, with a decrease in heart rate at doses of 2, 5 and 20 µM and in changing entropy with concentrations of 5, 10 and 20 µM. The analysis based on cardiac frequency and entropy parameters quantified in zebrafish larvae, using the computer program CardioCount v.2.0 allowed to quickly and accurately detect cardiological effects of the following drugs: dopamine, adrenaline, atropine and haloperidol.
Avaliação do desempenho de cultivares de alface em sistema hidropônico
(Universidade Federal de São Carlos, 2020-06-15)
Henrique, Allan Gabriel Soares
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Bianchini, Flávio Gabriel
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https://lattes.cnpq.br/4178478588502700
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https://lattes.cnpq.br/2710403044098165
This paper’s main goal was to evaluate the performance of different lettuce cultivars in a hydroponic cultivation system. The lettuces were divided in two groups, "crespa" and "americana", where the cultivars Milena, Palmas, Gran Rapids, Lucy Brow, Delicia Americana and Mayumi were studied. The lettuce seedlings were cultivated in 288 cell trays in a protect environment. The experiment took place in Piraju – SP, in the production area in Chácara Pingo de Ouro. After the seedling production, the plants were transplanted to the nursery stage, where they stayed for 14 days until the transplantion to the final stage and then harvest. After the harvest, the number of leaves, total weight of fresh mass, length and total weight of the roots’ fresh mass and stalk length were measured. Then it was possible to realize that the cultivars of crespa’s group were superior in number of leaves, and Milena and Palmas varieties stood out. The stalk length of the varieties of americana’s group was lower than crespa’s group, specially the Lucy Brown variety. The roots length of the cultivars Milena and Lucy Brow showed the biggest length, and both were statistically equal. The last evaluated variable, the fresh mass of aerial part, the Lucy Brown variety was superior than the others, weighing on average 416,6 grams, followed by Palmas from crespa’s group, 407,0 grams.
Regulação e governança participativa no Brasil: processos, práticas e atores nas agências reguladoras de saneamento básico
(Universidade Federal de São Carlos, 2020-06-16)
Oliva, Gustavo Martins de
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Vargas, Marcelo Coutinho
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https://lattes.cnpq.br/8869018482093008
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https://lattes.cnpq.br/0309557662423084
This research analyzes political and institutional elements of the regulation of public basic sanitation services. Evaluates the quality of an essential component of governance – participatory dimension – from two complementary approaches: the implementation level of structures and practices aimed at the participation of stakeholders and the presence of actors in the arenas of participation promoted by the regulatory agencies. To measure the level of participatory governance, a survey was applied with the agencies, based on the composite indicators of a project developed by the OECD - Indicators of Regulatory Policy and Governance (iREG), and to identify the actors present in the arenas for participation, public consultations, hearings and councils existing at the agencies were analyzed. Given the data collected, the research sought to verify the correlation between the level of participatory governance and the presence of actors in the regulatory process, such as those that represent the environmental protection, health promotion, defense of consumers and access by low-income communities to basic sanitation services. It is, therefore, a matter of verifying whether the implementation of participation structures and practices in the agencies promotes the inclusion of these actors and interests in the regulatory process. The research is characterized as a cross-sectional observational study and used comparative and statistical methods. It sought to verify similarities and differences between the Sanitation Regulatory Agencies, using the year 2018 as a period, and making causal inferences through statistical tests.
Kafka educador: um estudo sobre a frieza formativa por meio das narrativas animais
(Universidade Federal de São Carlos, 2020-06-18)
Telles, Rodrigo Ferreira
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Gomes, Luiz Roberto
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https://lattes.cnpq.br/4768579559449929
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https://lattes.cnpq.br/0240286771650323
This doutoral thesis stablishes a dialog between education and literature to aim enlarge the perspectives over academic training. We live in a time with easy access to the information and several scientific and technological advances that could indicate overcoming inequality and social injustices. However, what is observed is a growing apathy, insensitivity and coldness that unviables the perceptions of the contradictions that organize society. Thus, we could discuss the following problem: how can we think education inside a context that coldness impacts the formation process and the indifference in one another? Aiming analysing the aesthetic-formative potencial of Franz Kafka literature, as a way to overpass this coldness. Analysing Franz Kafka writings bounds animality thematic, that can be understood as a questioning to the human being that refuses coldness practices. Kafka, tension rationality and imagination, expand a perception over reality, revealing his contradictions and paradoxes. This research has a bibliographic nature to analyse the texts “Letter to his Father” (Brief an den Vater), “The Metamorphosis” (Die Verwandlung), "The Burrow" (Der Bau), and "A Report to an Academy" (Ein Bericht für eine Akademie), for the purpose to show elements that allow comprehend human formation. The analysis is done about a dialog between the authors of Critical Theory of Society, with Max Horkheimer, Walter Benjamin, Theodor Adorno, Andreas Gruschka and commentators, Günther Anders, Elias Canetti, Gustav Janouch, Ernest Pawel, Michael Löwy and Modesto Carone. Through a constelatory proceeding, this paper presents formative categories, that emerge from Kafka`s work, and collaborate to resist to formative coldness; analysing authoritary practices that cooperates to feed coldness; points out how the lack of sensibilization process caused by coldness can end in forgetting the other; refletes the life limits that adapts to cultural and economia organization, without recognizing the contradictions caused by coldness; discusses the loss of empty experiences and scars of a pathologic time made by coldness. This way this thesis demonstrates as a result, that Kafkas literature contribute to a construction of an anti-authoritarian education, that worth the dialog and break the formative hardness that generates insensitivity and coldness; collaborates in the production of an education of sensitivity and gives greater attention to life and differences; encourages resistance to a mediocre life that adapts to social injustices; values memory as a way of not forgetting past tragedies. From the Kafkaesque writings, we can enlarge our understanding of formative categories, such as: authority, sensitivity, emancipation, memory, which are central to the creation of educational paths and which allow us to break with cold practices.
Classificação etnopedológica dos solos e relação com a capacidade de uso das terras agrícolas no município de Campina do Monte Alegre - SP
(Universidade Federal de São Carlos, 2020-06-18)
Fernandes, Amanda Augusta
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Vilela, Laíze Aparecida Ferreira
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https://lattes.cnpq.br/8984427782760103
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https://lattes.cnpq.br/7253432884344960
Integrating empirical and scientific knowledge on the soil enables the construction of a more comprehensive thought, since both local and scientific knowledge are complementary. Thus, this research aimed to identify and qualify the empirical knowledge of farmers in the municipality of Campina do Monte Alegre-SP on the classification and agricultural use of soils and to relate it to the Brazilian Soil Classification System and to the classification of land use capacity. In order to carry out the ethnopedological research, 20 agricultural areas were sampled and 17 farmers interviewed. The methodology consisted of the following steps: 1) preparation of the semi-structured script and conducting the interviews; 2) sampling and morphological description of the soils; 3) systematization and content analysis of the interviews; 4) elaboration of maps. It was found that the main ethnopedological attributes used by farmers were color, texture, consistency, fertility, acidity, organic matter and indicator plants. For the formal classification, the Brazilian Soils Classification System was used as a reference. Five ethnopedological classes and their respective soil classes were raised “Terra Vermelha or Campo” (Ferralsols and Lixisols); “Terra Roxa” (Nitisols); “Terra Branca” (Plinthsols and Gleysols); “Terra de Areia” (Lixisols, Acrisols or Alisols) and the ethnopedological class “Terra de Cultura” (Chernozems). The ethnopedological classes “Terra Vermelha or Campo” and “Terra Roxa” prodominated in the agricultural areas visited, they were classified by classes and subclasses II e,s and III e,s of land use capacity, according to the manual for utility surveying and land classification in the use capacity system.
Concentração bancária no Brasil: trajetórias e conversão de capitais dos conselheiros administrativos dos cinco maiores bancos
(Universidade Federal de São Carlos, 2020-06-18)
Vila, Marcio Luis
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Sacomano Neto, Mário
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https://lattes.cnpq.br/0000793038362058
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https://lattes.cnpq.br/8141344966428327
This research analyzed banking concentration in Brazil after the Plano Real implementation in 1994, and how the five largest banks (financial groups) increased their market share, after the insertion of government programs for the privatization of state banks and the restructuring of financial institutions. The trajectory and the capital of board members fromthe five major banks were also evaluated. The objective of research was to analyze longitudinally the banking concentration in Brazil from the Plano Real, to identify the professional trajectory of the directors and what capitals were invested during their careers, as well as the conversion of these capitals, according to Bourdieu's theory. This study used qualitative methodological approach, the research took place through documents analysis, historical and descriptive, with use of prosopography as an investigation technique. Were used data from the five largest financial groups operating in the Brazilian territory, namely: Banco do Brasil, Caixa Econômica Federal, Itaú-Unibanco, Bradesco and Santander, as well as the members of respective Boards of Directors. The main results of the research show the three private banks in the study have expanded their leadership positions through mergers and acquisitions, while state-owned banks, having the government seal, managed to keep up with the largest private banks. The Plano Real and the 2008 Financial Crisis were the biggest tests the banks faced, and as a result we saw an increase in equity and net income surpassing historical series. Regarding the trajectory of the Board members, three types were identified, namely: “De carreira”, a trajectory in which the professionals worked for a lifetime in the institution; “Familiar”, are the professional heirs of the founding families; and “De Mercado”, where most professionals located, are specialists / technicians with long experience in other institutions.
Influence of Bobbin Tool Friction Stir Welding (BT-FSW) variants on the microstructure and properties of AA2060 and AA2196 aluminum alloys
(Universidade Federal de São Carlos, 2020-06-18)
Carvalho, Joana Amaral de
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Zepon, Guilherme
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https://lattes.cnpq.br/7924187202036614
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Alcântara, Nelson Guedes de
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https://lattes.cnpq.br/3123107570992184
In order to reduce total costs in aircrafts production, operation and maintenance, materials and processing techniques have been continuously further optimized. In this scenario, aluminum-lithium alloys have been studied due to its mechanical properties, low density and higher fatigue crack growth resistance compared to others aluminum alloys and steels. However, joining technologies usually applied in these alloys present limitations regarding uniformity, energy input and production costs. Since welding processes may not require any material additions such as rivets used in the mechanical fastening techniques conventionally used in joining aircrafts parts, it can contribute in saving structural weight. The aim of this research is to compare and understand the effect of two different methods of bobbin tool friction stir welding (BT-FSW), Self-Reacting BT-FSW (SRBT-FSW) and Stationary (upper) Shoulder BT-FSW (SSuBT-FSW) on the microstructure and mechanical properties of 3 mm thick aluminum-lithium alloys ( AA2060 and AA2196) plates in butt joint. In addition, the study of the influence of energy input on bobbin tool friction stir welding (BT-FSW) was evaluated to understand the effect of the parameters on the alloys. Defect free welds have been produced featuring a high-quality surface finish on the stationary side. In general, the self-reacting variant enabled welding with faster welding speeds than the SSuBT-FSW technique, which was the reason for lower energy input on SRBT-FSW. The influence of the processes on the microstructure and mechanical properties of different regions of the produced joint was evaluated by means of optical microscopy (OM), hardness testing and tensile testing. Differential scanning calorimetry (DSC) was performed to evaluate the influence of variants on precipitate evolution. Superior results were achieved welding AA2060 and AA2196 using SRBT-FSW- low energy input, reaching up to 78% of ultimate tensile strength of base metal.
Caracterização de azeites de oliva produzidos no Brasil e monitoramento da sua qualidade oxidativa durante o armazenamento
(Universidade Federal de São Carlos, 2020-06-19)
Berto, Bruna Maira
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Pereira, Gustavo das Graças
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https://lattes.cnpq.br/6055750211001915
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https://lattes.cnpq.br/1785960773537442
Olive oil stands out among lipid sources due to its appreciated sensory characteristics and for the beneficial health effects linked to its consumption. However, during the storage and/or use of this oil, together with the formation of oxidation products, the loss of compounds with bioactive properties can occur. Therefore, the objective of this work is to characterize olive oils of national origin and to monitor their oxidative degradation during storage. The experimental part of the work was divided into three stages. The first consisted of characterizing two olive oil samples produced in Brazil (AO SP and AO RS) in terms of identity and quality parameters. After characterization, these samples were subjected to oxidation under usual storage conditions (room temperature) for 6 months. Samples were collected at different time intervals and analyzed for oxidative and quality parameters. In the last stage, a shelf-life study of one of the olive oil samples was conducted. Results allowed the identification of the majority and minority components present in the two samples of national olive oil evaluated in the present work. The main differences observed were that the AO SP sample had a higher oleic acid content, but lower in palmitic acid than the AO RS sample. Regarding the quality parameters, both national oils met the specifications of national legislation. From the oxidation procedure at room temperature, it was possible to observe that both commercial olive oils deteriorated rapidly, mainly due to the high formation of hydroperoxides. Finally, changes in oxidative and quality parameters were lower in the shelf-life study compared to oxidation conducted with exposure to air and light.
Diamante dopado com boro como um possível suporte de eletrocatalisador de PEMFC
(Universidade Federal de São Carlos, 2020-06-19)
Mattoso, Samuel Henrique
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Rocha Filho, Romeu Cardozo
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https://lattes.cnpq.br/5200717413563550
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https://lattes.cnpq.br/7021437753063259
Proton-exchange membrane fuel cells (PEMFCs) are promising candidates for the green conversion of hydrogen into electric energy. A considerable problem pre-venting the large-scale applications of PEMFCs is the inadequate durability of the supported electrocatalyst layer. Carbon blacks (CBs) such as Vulcan XC-72 are commonly used as the carbon support, however its stability is limiting for long term PEMFC use. CB in the cathode is oxidized in the PEMFC start and stop cycles, detaching the Pt nanoparticles and promoting their agglomeration, which leads to performance loss. This degradation is due to the high potentials caused by fuel starvation and to the accelerated corrosion rate induced by the Pt catalysts. Boron-doped diamond (BDD) has interesting properties, such as high chemical and thermal stability, that make it desirable as a PEMFC electrocatalyst support material. The most widespread method for producing BDD is chemical vapor dep-osition (CVD), since it is efficient in dopant control and makes diamond with consistent characteristics. The physicochemical and electrical properties of BDD are affected by the amount of non-diamond carbon (NDC) present in the diamond matrix, by the grain size and by the boron doping. All of this in turn are controlled by the CVD conditions that are employed, such as source gas mixture ratios and deposition pressure/power. BDD can be synthesized as a film or a powder; the latter is most wanted for energy applications as it has a higher surface area. BDD particles can be synthesized by a core-shell approach, in which a powder sub-strate, such as nanodiamond or glassy carbon, is coated with a layer of BDD. The BDD overlayer can be observed with scanning electron microscopy (SEM), which allows the assessment of the particles’ morphology. Raman spectroscopy is widely used for evaluation of the BDD microstructure, as BDD materials have a wide range of Raman spectra that correlate with the amount of NDC, grain size and defect density. SEM and Raman spectroscopy enable the distinction of sp2 and sp3 bonded carbon domains, which allows the correlation of the BDD mate- 6 rials’ microstructure with the observed electrochemical properties. These proper-ties can be evaluated by cyclic voltammetry, in which redox peaks may be ob-served due to the presence of NDC. Additionally, redox probes such as [Fe(CN)6]3–/4– can be used, with the electrochemical response being sensitive to the surface or electronic properties of BDD. Anodic polarization is used to analyze the stability of the powders, as less-stable powders show more extensive oxida-tion. Finally, it is possible to attach Pt nanoparticles to BDD to test their viability as electrocatalyst support. After attachment of the Pt nanoparticles, it is possible to evaluate the performance and durability of the potential BDD supports with the previously mentioned electrochemical techniques and with accelerated long-term stability tests.
Mulheres da aroeira e o trabalho associado: ações organizativas de extrativistas em Piaçabuçu, Alagoas
(Universidade Federal de São Carlos, 2020-06-19)
Maciel, Kleciane Nunes
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Barbosa, Luciano Celso Brandão Guerreiro
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https://lattes.cnpq.br/7328141879157135
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Bergamasco, Sonia Maria Pessoa Pereira
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https://lattes.cnpq.br/8863899187043019
The present dissertation had as general objective to identify the actions of women's organizational strategies and socioeconomic reproduction strategies of the “Associação Aroeira” in the municipality of Piaçabuçu, Alagoas, in the context of associated work. It is a study case, characterized with an exploratory and descriptive research, whose approach used is the quali-quantitative. The methodological path was based on the semi-structured interview, documentary research and direct observation. The data collected were analyzed primarily from the qualitative analysis. The results of this investigation indicate that the social organization of women extractivists was fundamental for the construction of a self-managed scio-productive system, which in turn, still has problems inherent to self-management that must be overcome to reach higher levels of cooperativism and strengthening organizational. However, associated work presents itself as a strategy for the socioeconomic reproduction of extractivist women in the “Associação Aroeira” expanding job opportunities and creation of income, mainly promoting greater social engagement, the achievement of gains in they self-esteem, financial independence and the autonomy of women. Therefore, it is concluded that associativism enabled the satisfaction of needs inherent in the living conditions of rural women so important regarding the improvement of the income level and economic conditions. The practice ecological aspects of the extraction of aroeira and the accumulation of knowledge of the activity in the region have also made it possible for these women to be immersed in an environment that generates a situation of greater sustainability. This one factor is essential for conserving local biodiversity and structuring the adopted socio-productive system.
Análise das caraterísticas do abstencionista eleitoral nas eleições nacionais, revisão ao nível municipal no período de 2018
(Universidade Federal de São Carlos, 2020-06-19)
Di Domenico, Nicol Andrea
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Milanese, Juan Pablo
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http://scienti.colciencias.gov.co:8081/cvlac/visualizador/generarCurriculoCv.do?cod_rh=0000481033
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Ribeiro, Pedro José Floriano
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https://lattes.cnpq.br/6336151484882362
Colombia es un país que se ha encontrado en situación de conflicto armado interno desde hace más de 50 años, escenarios que han sucedido de la mano de los procesos de construcción del estado, incidiendo naturalmente en la formación del ciudadano político, lo cual visto desde la óptica de participación electoral ha generado un impacto el cual no puede ser catalogado como negativo, hoy por hoy con la implementación de los Acuerdos de paz ha quedado en evidencia que la indiferencia de los ciudadanos frente a los procesos democráticos del país está influenciado por variables que van más allá del conflicto, en los sesenta (60) años que los colombianos han elegido al cuerpo ejecutivo mediante elecciones los índices de abstencionismo han fluctuado entre el 40% y el 66% lo que nos deja a puertas de preguntar ¿Cuáles son las razones del abstencionismo electoral en Colombia después de los acuerdos de paz del 2016?, por tanto este trabajo de investigación busco esclarecer las características de los tipos diferentes de perfiles de los no votantes colombianos, con base al análisis de las elecciones presidenciales del 2018, observado desde el nivel municipal, concluyendo que algunas de las razones de los altos índices de abstencionismo electoral y el perfil de ese abstencionista están directamente relacionadas con variables de tipo demográfico entre ellas vivir en zonas rurales, traduciendo esto en una desafección política producto de la baja influencia nacional en los sectores más alejados
Desempenho nos testes físicos e força muscular de quadríceps em pacientes com DPOC: uma análise de cluster
(Universidade Federal de São Carlos, 2020-06-19)
Oliveira, Lucas Alves Cassiano de
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Silva, Marcela Maria Carvalho da
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https://lattes.cnpq.br/7456144301194366
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Di Lorenzo, Valéria Amorim Pires
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https://lattes.cnpq.br/9071791546812165
Introduction: Individuals with Chronic Obstructive Pulmonary Disease (COPD) present pulmonary and systemic dysfunctions that lead to the loss of peripheral muscle strength and decreased exercise capacity. There is a lack of studies in the literature that characterize clinical behavior through cluster analysis involving these variables, which are important for the development of specific pulmonary rehabilitation programs targeted at these individuals. Objective: To investigate and describe different phenotypes in individuals with COPD according to physical capacity, assessed by the six-minute walk test (6MWT), six-minute step test (6MST), one-minute sit and stand test (1-MSTST) and the quadriceps isometric muscle strength of these individuals. Methods: This is a cross-sectional study, with cluster analysis, in which 55 individuals with stable COPD were subjected to the 6MWT, 6MST, 1-MSTST tests and quadriceps isometric muscle strength test using a hand-held dynamometer. Results: Two phenotypes (A and B) were identified, with phenotype A grouping individuals with better lung function, less dyspnoea, better quadriceps isometric muscle strength and better performance in physical tests (p<0.01 for all variables), in relation to phenotype B. Conclusion: Two phenotypes were identified according to the functional tests and quadriceps isometric muscle strength showing relevant clinical differences that may guide a different therapeutic approach for these individuals.
Masculinidades e atos infracionais: a compreensão de jovens em conflito com a lei sobre as questões de gênero
(Universidade Federal de São Carlos, 2020-06-19)
Gomes, Ananda Evelyn Cardoso
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Spaziani, Raquel Baptista
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https://lattes.cnpq.br/2223649618057544
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https://lattes.cnpq.br/6100084565326189
This research is of a qualitative nature and aimed to discuss and analyze the conceptions of young authors of infractions on masculinities, in the city of Sorocaba/SP, problematizing from their speeches and trajectories the association between gender and conflict with the law. Individual interviews were carried out with five young people, initially with questions related to conceptions about gender and masculinities. In a second step, questions were asked about the intersection between gender and race, ending with questions related to the offending acts. The interviews resulted in different statements, some contradictions in relation to the conceptions of masculinities and situations experienced by young people, but they also expressed desires and feelings in relation to expectations for the future, about economic limits, their social relations and situations of social exclusion.
Revestimentos superficiais alternativos para aumento da vida útil de coquilhas de aço H13 utilizadas na fundição da liga AlSi12Cu4Ni2Mg
(Universidade Federal de São Carlos, 2020-06-19)
Bandeira Neto, Guilherme
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Afonso, Conrado Ramos Moreira
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https://lattes.cnpq.br/2176215981291453
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https://orcid.org/0000-0001-7505-8467
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https://lattes.cnpq.br/2334309752110172
This work was evaluated using options for protective coating which improved the hot working H13 steel mold availability in casting manufacturing of AlSi12Cu4Ni2Mg alloy. To reach this goal, the coating must be resistant to wear and to an aluminum soldering process. This takes place through aluminum diffusion from a solidified aluminum alloy in the direction of H13 steel matrix. Process cycle is a sequence of pouring melted aluminum into the mold, followed by solidification time, extraction of the finished part and the closing of the mold. In test performances, a tile of the mold, the pin, was chosen as a specimen because it has constant contact with a cast aluminum alloy, supporting additional efforts like extraction under solidified material. The tested coatings were nitrocarburized, duplex (plasma nitriding process, multilayered based-CrAlN/CrTiN coating applied by cathodic arc) and boronized. The coated pins were assembled in a same permanent mold to become susceptible to the same productive variables as in the GDC (gravity die casting) process. To understand the evaluation of the surface degradation, one specimen was segregated for each coating in different conditions, comprising of one condition with pins which did not have worked, a second condition of pins which have worked 40,000 cycles and a third condition with a maximum lifespan of nitrocarburized and duplex coating. The specimens were characterized by Vickers microhardness, optical microscopy (OM), X-ray diffraction (XRD), Scanning electron Microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS) and back-scattered electrons (BSE). As a conclusion, the Duplex based-CrAlN/CrTiN coating deposition by the cathodic arc in AISI H13 nitrided steel increased the mold working life within a 24% minimum, compared to the actual standard coating nitrocarburized coating. Boronized coating had an acceptable performance but to increase working life, it is necessary to adjust their production process.
Projetos de dosadores mecânicos e pneumáticos para a semeadura mecanizada de amendoim
(Universidade Federal de São Carlos, 2020-06-22)
Angelo, Eduardo Prisco
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Voltarelli, Murilo Aparecido
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https://lattes.cnpq.br/4889939917847330
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https://lattes.cnpq.br/6965502961463356
A crop of peanuts (Arachis hypogaea L.) is providing important gains for the country. However, although there has been an increase in the area sown in the country over the years, the need to increase also increases. For this, the development of mechanisms for specific use for culture is of great importance, since the use of standard dials for culture can favor mechanical injuries and failures in seed exposures. In this context, the objective of this work was to design two peanut seed engines. With a characterization of the linear and physical parameters of the seeds, it was possible to determine the mechanics of filling the discs for the honeycomb disk, and with the data of sowing densities (12; 15; 17 and 20 seeds m-1) with frequency of seed displacement. machine (4.00; 5.00 and 6.00 km h-1) determined a negative pressure in the pneumatic system. According to the analysis of the packing mechanics of the alveoli, the tangential speed of the base or alveolar disk must contain to dose as the three varieties were 43.65 rpm. On the other hand, with the determination of the negative pressure it was possible to verify that there is a variation of approximately 10.4 kPa of pressure between the lowest and the highest average speed of 4.0 km h-1 in relation to the number of seeds per meter , for working speeds of 5.0 and 6.0 km h-1 as media variations were 16.4 and 22.7 kPa, respectively. In this way, the standards used for dimensioning the mechanisms were dimensioned linear and an area designed for seeds. The processors' engines did not elaborate any AutoCAD® software and those printed using a 3D printer.
Obstacle detection and avoidance for a mobile robot
(Universidade Federal de São Carlos, 2020-06-22)
Silva, Rafael Gomes da
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Roberto, Santos Inoue
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https://lattes.cnpq.br/6221209121565990
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Amar, Faiz Ben
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Off-road robots are complex vehicles used in a variety of applications and are capable of operating over rough terrain, and its application has been growing more and more nowadays. With the growing importance of the study and application of autonomous vehicles in rough areas for the users’ safety reasons, researches concerning this kind of vehicle have increased. Works were already done to propose algorithms for non-linear predictive controllers, for the improvement of the stability of the vehicle, for path following and also for a nonlinear observer to estimate the contact cornering stiffness in real-time, but there is also the question of how to proceed if the robot encounters an obstacle that could obstruct its path while it is tracking a path. Thus, this work aims to propose an algorithm that allows a four-wheel, fast off-road, double-steering mobile robot to detect obstacles from the terrain in real-time using the dynamic mapping of the environment, and that also allows the robot to avoid obstacles by following a local path created using a composite Bézier curve, optimized based on the maximum steering that the robot can perform. For the experiments, a sensor for position and perception were used, including the Lidar (Light Detection And Ranging) Velodyne HDL-32E. The treatment of the point cloud provided by it was treated using mainly the PCL library. For reasons of internship duration, the tests performed were done mostly in a virtual environment considering different types of trajectory to be followed by the SPIDO, with obstacles positioned along the way. The final results obtained were satisfactory concerning the expected, thus concluding the validity of the proposed algorithm.
Triagem de isolados clínicos de Leishmania sp. para sequenciamento genômico
(Universidade Federal de São Carlos, 2020-06-22)
Takahashi, Talita Yuri
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Maruyama, Sandra Regina Costa
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https://lattes.cnpq.br/5719754923228879
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https://lattes.cnpq.br/0742274098797121
Leishmaniasis is a group of infectious tropical disease caused by protozoan from genus Leishmania and transmitted to humans through bites of infected sand flies. Visceral Leishmaniasis (VL) is the most severe clinical form of the disease and can be lethal if untreated or treatments fail. Brazil composes one of the 13 countries with the highest number of new VL cases in the world caused by Leishmania infantum, with a great focus on Northeastern. Treatments are poorly developed and the fatality rate expands every year affecting mainly children under 10 years-old. Recent study has shown the occurrence of a similar Crithidia fasciculata parasite in clinical isolates (LVH60 and LVH60a) in a fatal VL case. The disease onset is related to parasite/host interface factors. Parasite identification and genomic analyses of the pathogen enable to understand the intrinsic factors and genetic diversity of parasite related to the disease outcome and response to treatment. Thus, one of the aims in this study was to perform the screening of clinical isolates from patients diagnosed with VL in Aracaju - Sergipe region, to select samples for Whole-Genome Sequencing (WGS) in Illumina platform for obtaining complete genomic sequences of parasites capable of causing VL in this endemic area. The screening encompassed the parasite morphological analysis, molecular characterization of conserved genomic regions through DNA sequencing analysis and molecular phylogenetics. Engendered data were useful for constructing an informative panel about the analyzed samples, which guided to the selection of clinical isolates for genome sequencing. In parallel, this study also had as aim to systematize the genome analyzes of WGS data obtained from previous work, which will assist the Comparative Genomic analyses between Leishmania and Crithidia-like to our group’s further studies. Finally, a polished genome of Crithidia-like parasite was obtained from a clonal sample of LVH60a with Oxford Nanopore Technology (ONT), which resulted in a final genome assembly of 38 contigs and a predicted genome size of 34.4 Mb in length. This study was essential to understand the occurrence of non-Leishmania parasites in the endemic region of LV in Aracaju and for studying the genome and genetic variation to lead future strategy analyses and intervention in public health caused by this new parasite.
Propagação e controle de Anredera cordifolia (Ten.) Stennis
(Universidade Federal de São Carlos, 2020-06-22)
San Gregorio, João Paulo Ruvieri
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Silva, Paulo Vinícius da
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https://lattes.cnpq.br/9428251941902990
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Monquero, Patricia Andrea
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https://lattes.cnpq.br/2766526793830455
Anredera cordifolia (Ten.) Stennis (Madeira vine) is a succulent vine that produces vegetative structures on its stem, called aerial bulbils that are responsible for the dispersion of this species. This plant has become a possible invader in Brazilian agriculture with records of losses in coffee crops. The objective of this study was to study the influence of dimensional variation and different depths of planting aerial bulbils on the growth and development of A. cordifolia plants, as well as to study the influence of the effect of herbicides on pre and post emergence control of plants. All experiments were carried out in a greenhouse. Experiments for the study of propagation: In experiment 1, a completely randomized design with six replications was used. The treatments consisted of four mass classes (previously established) of aerial bulbils: C1 (0 to ≤ 0.6g), C2 (> 0.6 to ≤ 1.5g), C3 (> 1.5 to ≤ 3.0g) and C4 (> 3.0 to ≤ 12.0g), observing the percentage of viable bulbils (BV), the number of stems per bulbillus (NH/B), the average stem length (CMH), the aerial part dry mass (MSPA) and the emergency speed index (IVE). For experiment 2, a completely randomized design with four replications was used. The emission of plants by bulbilli planted at seven different depths (0, 3, 6, 10, 15, 20 and 30 cm) was verified, NH/B and IVE were observed. Experiments designed to study the management of potted plants: In experiment 1, the control percentage and the MSPA were determined after application in post-emergence in the commercial dose of the herbicides: chlorimuron-ethyl (20 g a.i. ha-1), flumioxazin ( 25 g a.i. ha-1), glyphosate (2.4 g a.i. ha-1), metsulfuron-methyl (6 g a.i. ha-1), saflufenacil (70 g a.i. ha-1) and glyphosate + saflufenacil (1.44 g a.i. ha-1 + 49 g a.i. ha-1) in a completely randomized design in a factorial scheme (herbicides X periods), with four replications. In experiment 2, the number of shoots per bulb (NB/B) was observed after the application of the herbicides: flumioxazin (120 g a.i. ha-1), imazapic (122.5 g a.i. ha-1), indaziflan (92.5 g a.i. ha-1), metribuzin (960 g a.i. ha-1), sulfentrazone (700 g a.i. ha-1) and tebuthiuron (1200 g a.i. ha-1) in pre-emergence of the plants in a completely randomized design, with four replications. Plants from bulbils with greater mass have a fast growth and establishment; the establishment of aerial bulbils on the soil surface has a greater chance of emission of plants with rapid growth; A. cordifolia plants had about 80% control when subjected to the mixture of glyphosate + saflufenacil herbicides.