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Análise da cobertura da rede de linhas do transporte coletivo urbano em São Carlos
(Universidade Federal de São Carlos, 2018-07-13)
Souza Filho, Elias Martins de
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Hirosue, Fernando Hideki
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https://lattes.cnpq.br/4091598921285700
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https://lattes.cnpq.br/5738854124740660
This research emphasizes the importance of public transportation on the life of users and on city operation. São Carlos’ network of public transport bus lines is the study object, and is run, at the moment, by Suzantur. Through the creation of a network line map of the city, it was possible to analyze the network functionality, disposure and, through the method of determining accessibility area bands around the lines as served areas, calculate the portion of municipal population served by it. The research showed results for São Carlos, and also the possibility of applying this method on other cities. Although existing some overlapping lines, what may decrease the transportation efficiency, the study showed a positive result, as it revealed, for the last few years, an increase on the analyzed system’s coverage, going to 97,40% of the municipal population having accessibility categorized as “good”, which means, at this case, all people inside an area of a 200 meter band around the lines.
Detecção de impactos em estruturas unidimensionais utilizando o método TDOA (Time Difference of Arrival)
(Universidade Federal de São Carlos, 2018-07-13)
Garcia, Gabriella Faina
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Shiki, Sidney Bruce
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https://lattes.cnpq.br/0573973677787523
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https://lattes.cnpq.br/2187363760175978
Impact is a dynamic load on a structure in which a high module force is applied within a short period of time. Then, as the impact has affected a steel beam, it is possible to analyze the mechanical signals measured produced by the piezoelectric sensors. Therefore, in this thesis, the Time Difference of Arrival (TDOA) method is used to detect the impact. It consists of utilizing two sensors placed within a known distance from each other, which have the objective of localizing the impact through measures of the wave transmitted along the beam by the dynamic load. The localization of the impact was done using the method in question and then compared to its actual position.
Dinâmica populacional em diferentes escalas espaciais de duas espécies arbóreas da Floresta Atlântica
(Universidade Federal de São Carlos, 2018-07-13)
Rosa, Lucas Benedito Gonsales
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Sampaio, Maurício Bonesso
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https://lattes.cnpq.br/1062184411612711
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Martins, Valéria Forni
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https://lattes.cnpq.br/0686674300788674
The population dynamics of plants can be differently influenced by environmental differences in both regional and local scales. On a regional scale, population dynamics can be influenced by climate, stochastic events and anthropogenic actions. On a local scale, dynamics can also be influenced by environmental characteristics that differ locally, such as light, topography and soil characteristics. Environmental differences in both regional and local levels are expected to have a greater effect on specialist species, which present a more restricted geographical distribution and lower local abundance than generalist species. The objective of this study was to test the spatial variation in the dynamics of different populations of two tropical tree species, with extremely different geographic distributions and local abundances, and how they responded to environmental differences on a local scale. We used data from two demographic censuses of Faramea picinguabae M.Gomes (Rubiaceae) and Mollinedia schottiana (Spreng.) Perkins (Monimiaceae), which were performed approximately 9 years apart, held in two non-contiguous, permanent 1-ha plots (B and E) located at a region of the Atlantic Rainforest, Southeast Brazil. Due to the species’ geographical distribution and local abundance, we have assumed that F. picinguabae is a specialist species and M. schottiana is a generalist species. Each plot was divided into 100 subplots, in which we measured the canopy opening, elevation, declivity, and soil coverage by rocky boulders. In order to test the existence of spatial variation in the dynamics among plots, we have compared the environmental variables among plots, where the population is defined as the group of individuals of the same species in the same plot. In turn, to test how local environmental variations influence population dynamics, we have divided each of the environmental variables into categories and defined population as the group of individuals of the same species in each of the categories. In the two previous cases, we have calculated the limited rate of annual population growth (λ). We have found differences in annual λ both among plots and among categories of environmental variables only for the specialist species. All populations presented annual λ < 1, except for F. picinguabae on plot B and in environmental categories where the canopy openings are similar and higher than the average among censuses. The population decline of most populations may be explained by the intense drought in Ubatuba in the last decade. However, on a local scale, the population growth of F. picinguabae in plot B may have occurred due to a positive response of this species to the lower soil coverage by rocky boulders, which seems to have balanced the negative consequences of the drought. The understanding of how environmental variations, acting at different scales, influence the λ of plant populations with distinct strategies is important to help predict their behavior against environmental changes. From this, further studies are needed to determine how common this variation in population dynamics is and whether it can be predicted by species strategies, aiming at management actions to stabilize or increase their population size within a forest.
Compatibilização química em compósitos de PLA reforçados com fibras de sisal
(Universidade Federal de São Carlos, 2018-07-13)
Takahashi, Márcio Conti
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Bettini, Sílvia Helena Prado
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https://lattes.cnpq.br/3687551763124327
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https://lattes.cnpq.br/4381321217525552
Even though poly(lactic acid) (PLA) is fragile under impact and has low toughness, the polymer stands out for its stiffness and high tensile strength. This polymer is an interesting material not only for short-term applications, such as disposable products, but is also suitable for durable goods. Although PLA is a potential substitute for conventional polymers, its use is limited by high costs. Incorporation of vegetal fibers in PLA matrix has been evaluated as a manner of costs reduction and, consequently, raise the economic competitiveness of the polymer. Poor interfacial adhesion has been observed as consequence of chemical incompatibility of the phases in the composites, resulting in unsatisfactory mechanical performance. Addition of PLA grafted with maleic anhydride, PLA-g-MA, is a possible alternative to improve interfacial adhesion. Aiming costs reduction and, simultaneously, enhance or, at least, maintain PLA’s high mechanical performance, this project investigated the effects of addiction of two types of compatibilizers, prepared by reactive extrusion, with different chemical characteristics: one of them with higher molar mass and lower acidity content and the other with lower molar mass and higher acidity content. Composites containing 10 and 30% wt of sisal fibers were prepared by extrusion. Two levels of compatibilizers mass content, 2 and 6%, were used in formulations. Results of size exclusion chromatography analysis revealed intense molar mass reduction of the matrixes during processing, in presence of sisal fibers. In contrast, the presence and content of compatibilizer had no significant influence on matrixes degradation. Nucleating effect of sisal fibers to PLA crystallization on composites was verified. Were attained increases of 90 and 120% on impact strength and Young modulus in composites, respectively. The objective of maintaining the tensile strength of PLA in the composites was achieved. Meanwhile, no gains were reached on the property, even in presence of compatibilizers.
Confiabilidade do Transporte Público na Cidade de São Carlos
(Universidade Federal de São Carlos, 2018-07-13)
Sasaya, Jimmy Tadashi
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Hirosue, Fernando Hideki
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https://lattes.cnpq.br/4091598921285700
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https://lattes.cnpq.br/0464782881967064
In this work, the results of a diagnosis of the public transportation reliability in the city of São Carlos are discussed. To achieve these results, two methods for reliability evaluation were applied. The first method of evaluation consists in the comparison of the real time that the buses departed with the scheduled times, thus obtaining the percentage of the departures that are made during a threshold of reliability between a departure of no more than 3 minutes before and 5 minutes after the exact scheduled time. The second method of evaluation is composed of a qualitative survey of public transport users, in which it was evaluated concepts about the satisfaction in regard to punctuality and average time of delay or early departure that the general public experiences. It was concluded that the public transport reliability could be considered poor, with only 48% of the trips being considered punctual. The surveys corroborate with the data gathered, showing the users’ dissatisfaction in regard to the reliability. Also presented at the conclusion are some strategies to improve this question.
As mudanças nas leis florestais e a quantificação de serviços ecossistêmicos em microbacias rurais
(Universidade Federal de São Carlos, 2018-07-13)
Rosário, Victor Alexandre Carlotti
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Viani, Ricardo Augusto Gorne
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https://lattes.cnpq.br/3250752369062840
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https://lattes.cnpq.br/2572385052955529
The demand for information about resources quantity and quality of a watershed, and how these resources are related with riparian forests, restoration, farming and Ecosystem Services (ES) production, are very debated nowadays. Thus, the determination of factors that directly and indirectly affect the quality and quantity of these resources, and how it affects the landscape dynamic, must be studied for a better balance between agriculture and environment. The objective of this study is quantify the potential of ES production related to soil conservation and carbon stock in different forest restoration scenarios and the adoptions of soil conservation practices in agriculture areas. Two micro watersheds were studied: Posses (Extrema – MG) and Ribeirão Vermelho (São Pedro – SP). Three scenarios were considered: the current land use and soil cover, the old Forest Code (1965 – scenario I), and the Native Vegetation Protection Law (NVPL, 2012 – scenario II). The metrics used in this evaluation were soil loss, soil retention and sedimentation. Carbon stock was estimated for current forest cover, for restoration areas and for the others current land covers and uses. To evaluate the soil conservation and agricultural practices were simulated different scenarios with and without conservation practices and different riparian forest protection buffers. Regarding the current scenario, the NVPL will increase the forest cover, decrease sedimentation, soil loss and increase the carbon stock for the Posses and Ribeirão Vermelho micro watersheds. It was verified that the a bigger forest cover (scenario I), provides less soil loss and less sediment that reaches the waterways when compared to landscapes with lower amount of native vegetation (scenario II). Therefore, the NVPL will reduce the area to be restored, the potential of recovery of forest cover and the ES production related with soil conservation in the micro watersheds studied compared to what would be obtained with the old forest code. In addition, the conservation practices adoption, with and without, influenced soil loss and sedimentation more than the riparian vegetation buffers, evidencing the importance of the adoption of good agricultural practices within the concept of forest restoration and landscape.
Ferramenta de controle glicêmico com interface auditiva, alertas e conectividade wi-fi para diabéticos com dificuldades visuais
(Universidade Federal de São Carlos, 2018-07-16)
Borges, Vinicius Azevedo
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Kato, Edilson Reis Rodrigues
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https://lattes.cnpq.br/8517698122676145
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Leal, Ângela Merice de Oliveira
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https://lattes.cnpq.br/7202663545989206
Diabetes mellitus is a non-transmissible chronic disease that can cause several complications when untreated, including diabetic retinopathy, the major cause of acquired blindness. The treatment of the disease consists of the control of the glycemia level, which is only possible through a monitoring routine. Glucose monitors, also known as glucometers, help in self-care with the disease, however, most of the commercialized models provide only a visual user interface, making it difficult or impossible to be used by individuals with reduced visual acuity. The objective of this project was to develop a blood glucose monitoring instrument that emitted clear warnings and instructions to facilitate glycemic control with precision, providing autonomy and independence for diabetic patients with visual difficulties. The device was designed using the Arduino microcontroller-based development platform. A speaker sound interface was implemented with predefined alert phrases, a web interface for configurations and data access, and reverse-engineering the operation of biosensor strips for use in the prototype. The results presented a prototype device with a functional speaker interface, with sound quality tested and validated, accuracy of measurements very similar to the commercial apparatus used in the comparisons, as well as other features expected from a commercial appliance. It is also planned to validate the instrument by a control group with diabetic individuals who present visual difficulties.
A necessidade da periodização para uma (re)leitura dos romances The adventures of Tom Sawyer (1876) e The adventures of Huckleberry Finn (1885), de Mark Twain
(Universidade Federal de São Carlos, 2018-07-16)
Barbizan, Eduardo Alves de Deus
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Ferreira, Carla Alexandra
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https://lattes.cnpq.br/5522506928191940
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https://lattes.cnpq.br/1212224184353244
The aim of this research is to point to the need for periodization (JAMESON, 1992) of Mark Twain's novels The Adventures of Tom Sawyer (1876) and The Adventures of Huckleberry Finn (1885) to revisit the contemporary reception of books, marked in these readings by the possible accusations of racism and prejudice made to works by critics. The objective of that thesis is to reintegrate the literary texts in their production context and investigate how the ethnic and racial issues are figured in these Twain's novels. By means of concepts of Reception Theory as proposed by Jauss (1967), especially those of horizon of expectations, synchronic and diachronic reception amplified by the political reading as presented by Fredric Jameson (1992), Antonio Candido (1970) and Roberto Schwarz (1987) will seek to re-read these novels tied to their historical context of production.
Tradução de poesia concreta do português para a Libras: transcriando um poema de Paulo Leminski
(Universidade Federal de São Carlos, 2018-07-16)
Sena, Juliana Perim
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Cabello, Janaina
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https://lattes.cnpq.br/4349074907357325
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https://lattes.cnpq.br/1217959410945584
Bearing in mind: A) the challenges inherent in the translation of poetry due to its condition as an aesthetic object; B) the specificities involved in the activity of mobilizing speeches of a linguistic pair that contains linguistic modalities (oral-auditory and visual-gestural-spatial) and different semiotic translation supports - Portuguese written language and Brazilian Sign Language (Libras); and, C) the characteristics of Concrete Poetry, mainly with regard to the use of the graphic space of the page as a structural agent, this work presents a practical proposal of transcreation (in the Haroldian conception), in the Portuguese Language> Brazilian Sign Language direction, for the poem 'metamorphosis' by Paulo Leminski. To substantiate the proposal and reflections, authors like Bakhtin (1988) are placed in dialogue; Barros (2015); Campos (2013); Campos, Campos and Pignatari (1975); Segala (2010), among others. To create the parallels in the poem in Libras, a varied set of strategies was used, with verbal and non-verbal resources, from linguistic and discursive strategies to video editing semiotics, such as: phonological-lexical organization, use of expressions facial and body, speed and rhythm of signaling, acceleration and reduction of speed through editing, color change of the image, application of image effects, among other resources. It is believed that the research contributes, above all, to the discussions and reflections it raises about the influences of intermodality and intersemiosis in the transcriatory activity of concrete poetry for Libras, showing the creative character of the translator and the power of the concept of transcreation in this context. The work can also contribute to foster the production of translation materials of artistic and cultural content in the Portuguese - Libras direction, favoring the realization of the right of linguistic accessibility of Brazilian deaf communities to these Portuguese language contents and, consequently, contributing to cultural exchange between speakers of the two languages involved. Finally, it is also justified because it constitutes a “fertile ground” for thinking about issues that disturb students of translation practice, such as fidelity, untranslatability and authorship.
Modelo de decisão de licitação utilizando sistema fuzzy baseado em regras
(Universidade Federal de São Carlos, 2018-07-16)
Marçola, Jadilson Astorino
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Pimenta, Adinovam Henriques de Macedo
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https://lattes.cnpq.br/4731132112733505
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Godinho Filho, Moacir
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https://lattes.cnpq.br/6136685270563354
Taking into account the decision-making process of bidding, which there’re several strategic factors, complex and subjective, this document has as goal provide a new decision model, using a fuzzy system based on parameters, supporting the manager on binary decision-making of participating or not in a bidding. Beginning from a literature review about bidding, decision-making of bidding and fuzzy system, it approaches the new bidding decision-making, comparing to each others there are, as well as it application, here represented by a case study in a capital goods factory, with a strong national market performance. The obstruction to get information, the unstructured formulation of the decision-making process, the presence of limited resources, the increasing demands for product qualities and the possibility to help managers on process decision-making, motivated the document development. Taking into account that, during the whole information gathering process, it was verified the very qualitative variables presence, imprecise and the decision-making process based on human knowledge, whose behavior is influenced by perception, judgment and emotions, chose to develop a fuzzy model so, allowing the development of methods and techniques for representation and processing inaccurate information, abundant in the real world, and also difficult to process by conventional logic. The knowledge construction of the knowledge base of fuzzy systems, formed by database and by parameters was developed by the researcher, with specialists support. The expected benefit with the use of the new model is to get reduction of the manager's response time, more assertive decisions and saving of human and financial resources during the process of preparing proposals. With a historical database of a capital goods factory was possible to build up several bidding decision scenarios. Besides the model, a parameters fuzzy system was developed, whose results are in accordance with the decisions expected by those experts. The model, compared to the other models according to the literature review, was more robust, more interpretable and less dependent on the specialists.
Literatura e contracultura: uma leitura política sobre The dharma bums de Jack Kerouac
(Universidade Federal de São Carlos, 2018-07-17)
Oliveira, Matheus Barbosa de
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Ferreira, Carla Alexandra
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https://lattes.cnpq.br/5522506928191940
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https://lattes.cnpq.br/9623917128256739
This work has the purpose to analyze Jack Kerouac’s, The Dharma Bums (1958), using Fredric Jameson’s analytical method, as described in The Political Unconscious: The Narrative as a Socially Symbolic Act (1992). Published in 1958, this narrative offer us a plot with critical reading to America that was built up until that time, since its characters, individual travelers (the bums), strive for experiences and world views away from the "American Way of Life", that is an ideal of life anchored in work and consumption. Narrated by Ray Smith, central character, the novel shows a look toward on the margin of American society of that period, out of to the behavioral patterns, thus revealing important critical elements that systematically look to the bases of the current sociocultural model. The distance of the urban area, in this sense, announces an intense search for nature, through roads and freedom – existential and spiritual – guided by pacifist and anticonsumerist positions that refer to the ethical conduct of the characters. In order to get such interpretation, we will undertake analysis through a dialectical movement, which starts from the presentation and examination of the manifest content, that is, the literary text itself, always in dialogue with the historical conjuncture, so that at last we access the mode of production and political criticism of its contradictions. Such inconsistencies are, to a large extent, symbolized by the exploratory work denied by the protagonists; work whose designs faces the citizenship and human dignity construction.
Estratégia de modelagem da dinâmica de controladores para controle de AGV
(Universidade Federal de São Carlos, 2018-07-18)
Oliveira, Diogo Puppim de
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Morandin Júnior, Orides
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https://lattes.cnpq.br/4192845106907956
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https://lattes.cnpq.br/3799186678251727
In industrial environments, the use of robotics is essential to prove an efficient response and to use the demands of this sector. In particular, through the use of AGV (Automated Guided Vehicle), industrial motors for transporting materials indoors and outdoors in the industrial sector. As accomplishments of the permitted activities for a vehicle sensing, navigation and control system through the operators. These systems can be represented by mathematical modeling and simulated using software. This dissertation aims to present the representation of AGVs for the use of vehicle agents display model that will represent a virtual environment modeled in Unity3D. This strategy aims to contribute to the tuning process of the real vehicle by using the tuning made in the simulated environment employed in the real environment.
Morfologia e propriedades estruturais de óxidos metálicos complexos: um enfoque teórico e experimental
(Universidade Federal de São Carlos, 2018-07-18)
Oliveira, Marisa Carvalho de
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Bort, Juan Andres
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Longo, Elson
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https://lattes.cnpq.br/9848311210578810
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https://lattes.cnpq.br/1590009041985449
Design, control and direct characterization of the properties of the surfaces are prerequisites for all practical applications of (nano) materials. Within this context, the present doctoral thesis is an experimental and theoretical work on the morphology, structure, electronic and optical properties of materials based on complex metal oxides: BaWO4, BaMoO4, solid solution BaW1-xMoxO4 (x= 0, 0.25, 0.50, 0.75 and 1), CaMoO4, ZnMoO4, ZnMoO4:Eu3+, CaZrO3 and CaZrO3:Eu3+, which constitute the systems studied in this Doctoral Thesis. In Chapter 1 of the introduction, we begin by highlighting the importance of combining theory, simulation and experiment in the study of materials, then we present a general view on the concept of morphology in particular, how to obtain it theoretically using Wulff's construction. Chapter 2 presents the theoretical methods and computational simulations, explaining how we characterize the excited electronic states and calculate the structural, electronic and optical properties. The motivations and objectives of this work are listed in Chapter 3. Chapter 4 presents, analyzes and discusses the obtained results, which were carried out in collaboration with the Center de Desenvolvimento de Materiais Funcionais (CDMF), at the Federal University of São Carlos (UFSCar) and in collaboration with the Laboratório de Síntese Química de Materiais (LSQM), in the Department of Matters of the Federal University of Rio Grande do Norte (UFRN), while The general conclusions are summarized in Chapter 5, along with the topics that could be the continuation of this work. Below is a summary, written in Portuguese, in order to comply with the regulations of the “co-tutela” agreement.
Sensibilização para a conservação das águas subterrâneas: um estudo em áreas de recarga do Aquífero Guarani em bacias hidrográficas no Estado de São Paulo
(Universidade Federal de São Carlos, 2018-07-20)
Alcantara, Anayra Giacomelli Lamas
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Hanai, Frederico Yuri
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https://lattes.cnpq.br/7651828454575175
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https://lattes.cnpq.br/1565963325417191
Groundwater is one of the most important fresh water's sources available for human consumption. However, they are largely unknown, probably due to distortions in environmental perception, since it is hidden under the surface. Moreover, there are few initiatives to conserve the groundwater, as well as studies focused on sensitization, perception and comprehension of the processes involving this important resource. In this way, the research had the objective of investigating the sensitization processes aimed at the conservation of these waters, focusing on Pardo's Watershed Management Units (UGRHI-04) and Tiete-Jacaré Watershed (UGRHI-13), both strategic for conservation actions of the Guarani Aquifer System (SAG). In order to do that, this exploratory research was divided in the following stages: theoretical basement through systematic bibliographical review; survey, categorization and analysis of materials and didactic resources on the subject; compilation of directives and guiding essential principles for the development of future materials that facilitate the perception and knowledge of the aquifer systems and the sensitization of the users, made from a participatory approach with the research collaborators; development, application and evaluation of an sensitization experience for the conservation of groundwater, focused on the reality of the studied UGRHIs, together with the research collaborators. The results evidenced the expressiveness of materials and didactic resources on the subject matter in the studied areas, making available the existing resources and the opportunities for improvement of these materials. Based on the contribution of experts in the field, the guidelines suggested in this research point to the importance of the elaboration of resources with technical quality in relation to textual and graphic contents, and that are interactive, creative, engaging, inclusive and directed to the local, contextualized and problematized. The experience developed was effective to facilitate the perception and sensitization of the participant, according to the evaluation of the employees, constituting a possibility to be used by those who wish to act in the field of awareness. With this, the research contributes to the increase of knowledge and provides new research opportunities in this area.
Adapatações da junção neuromuscular na isquemia cerebral e no diabetes mellitus
(Universidade Federal de São Carlos, 2018-07-20)
Bonilla, Yisel Carolina Estrada
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Souza-Castro, Paula Aiello Tomé de
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https://lattes.cnpq.br/4565741478061291
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Russo, Thiago Luiz de
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https://lattes.cnpq.br/2755480908047791
Introduction: Chronic Noncommunicable Diseases (CNCDs) are the leading cause of mortality and premature disability in most countries of the American continent, including Brazil. Among CNCDs are Diabetes Mellitus (DM) and Cerebral Vascular Accident (CVA). Both DM and CVA can compromise upper limb (UL) function, decreasing motor performance by compromising the structure and function of muscle tissue. The Neuromuscular Junction (NMJ) is an important structure that relates the function of the central and peripheral nervous system to that of muscle tissue. Understanding NMJ changes in DM and CVA and its relation to UL function may help in understanding the pathophysiology of these diseases, as well as guide possible therapies. Objective: The objective of the two studies was to evaluate the plasticity of NMJ in animal models of DM and Brain Ischemia (BI) separately, as well as its relationship with motor skills in a reach and manipulation task. Method: For this, two studies were conducted. In study 1, 12 3-month-old Wistar rats, divided into two Control (C) and DM groups, were trained in reaching task, through habituation, dominance determination and reach task training. After these procedures, all animals were evaluated with the test of collecting tablets. In the animals of the DM group, the induction of DM was performed, with the injection of streptozotocin (STZ) dissolved in citrate buffer. In study 2, 12 3-month-old Wistar rats divided into 2 groups (C and BI) were also trained for the task of collecting tablets, as previously explained. In BI group, ischemia was induced with injection of Endothelin 1 (ET1) in the area of motor representation of forelimb. After 15 days, all animals of both groups were euthanized, extracting the biceps, triceps, fingers flexor and fingers extensor muscles. The cross-sectional muscle fiber area (CSA) the percentage of connective tissue and NMJ area were investigated in both studies. Correlations between morphometric variables and motor performance were performed. Results: In study 1, there was a decrease in the morphometric parameters of the NMJ, as well as an increase in the atrophy of the muscles of the DM group compared to the animals in C group. In study 2, there was a increase in the morphometric parameters of NMJ and an increase in muscle group atrophy of the BI group compared to the animals in C group. In the two studies, there was an important association between the NMJ parameters and the motor performance evaluated in the DM and BI. Conclusions: Both DM and BI generate changes in NMJ, muscular atrophy and fibrosis of the forelimb muscles. Such alterations are associated with performance in coordinated tasks of the forelimb of the animals.
Efeitos sociais do implante coclear: uma revisão sistemática
(Universidade Federal de São Carlos, 2018-07-20)
Silva, Josana Carla Gomes da
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Paulino, Vanessa Cristina
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https://lattes.cnpq.br/5235654050505504
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Costa, Maria da Piedade Resende da
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https://lattes.cnpq.br/2791098416503955
Introduction: Cochlear implant (CI) is indicated for lingual post adults who presents severe or bilateral deep sensorineural hearing loss, suitable motivation of the individual for the use of the implant and for the process of speech-language rehabilitation. For pre-lingual adults, the criterion differs, since the patient is required to have established linguistic code and adequately rehabilitated by the oral method. There are divergences regarding CI, while the medical community hold CI as the most assertive means of treating hearing impairment so that these individuals may have and / or resolve their social and professional lives in order to interact with listeners and be independent, being able to have a better social insertion due to their improved hearing capacity and speech comprehension, in contrast the deaf community is contrary to believe that their identity is characterized by the use of the Brazilian sign language - Libras and to consider the CI a retrocession before the motions in favor of the recognition of Libras. Objective: to investigate the scientific production in the Brazilian context about the social effects of cochlear implant in the life of the individual. Method: This research used the methodology of the Systematic Review, which sought to review bibliographies and delineate a reflective and comprehensive work, as well to make an interdisciplinary historical-critical analysis of the theme. This type of research is configured as a process of meeting, critical and synthetic evaluation of results from multiple studies. Results: The analysis allowed to consider that the social effects in the life of the implanted patient, resulting of CI, can be negative when related to the physical aspect of the external device, resulting in shame, inferiority and insecurity. It also shows that people who did the cochlear implant due to post-lingual deafness demonstrated positive social effects such as gaining self-confidence and security in everyday communication situations and social interactions. Psychosocial aspects and quality of life after implantation were not significantly addressed in the studies analyzed. It is important to emphasize that to have a good adaptation after the procedure, these phenomena need to be studied to evaluate which methodologies can be used for negative effects to be mitigated and how they affect the life of the implanted person. Considerations: From the analysis of the studies the hypothesis was raised that the social effects in the person's life implanted because of the cochlear implant are distinct in adolescents and adults. The hypothesis is since the studies carried out with adolescent participants had negative results, possibly because of the concern related to self-image, body changes, dating and social interactions. From this systematic review the study observed that it is necessary to investigate these effects more to understand how they affect the quality of life of the implanted person and how this can interfere in their life. The study suggests that a systematic review on the topic be carried out at an international level with the purpose of analyzing the scientific production in the area.
Avaliação morfológica, microestrutural e eletroquímica da liga Ti-6Al-4V soldada por fricção linear
(Universidade Federal de São Carlos, 2018-07-20)
Silva, Diego David da
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Della Rovere, Carlos Alberto
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https://lattes.cnpq.br/8141224513975606
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Aquino, José Mario de
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https://lattes.cnpq.br/8847710280926769
MORPHOLOGICAL, MICROSTRUCTURAL, AND ELECTROCHEMICAL EVALUATION OF THE Ti-6Al-4V ALLOY WELDED BY FRICTION STIR WELDING - Reprocessing is an important step in the nuclear fuel cycle and basically consists of dissolving the fuel (UO2) in a boiling medium (6.0 or 11.5 mol L‒1 HNO3). In order to do so, the choice of appropriate materials for the construction of the reprocessing infrastructure is required. From the economic point of view, stainless steel would be the best option; however, it does not exhibit good corrosion resistance against the oxidant medium mentioned above. Therefore, other materials must be employed to mitigate corrosion problems. In this sense, valve metals and their alloys (Ti, V, Nb, Zr, etc.) are a good alternative due to the spontaneous formation of a stable oxide film on the metal surface. Thus, one way to fulfill these requirements might be the union of those two materials through welding. In the present work, a plate of a Ti alloy (Ti-6Al-4V) was welded to a 304 L stainless steel plate using the friction stir welding process. So, the aim of this work was to particularly study the welded region of the Ti alloy, which will be held in contact with the oxidizing solution of HNO3. Thus, morphological (metallography, scanning electron microscopy coupled to elemental analysis), microstructural (X ray diffraction - XRD), mechanical (Vickers microhardness), electrochemical (open circuit potential, electrochemical impedance spectroscopy - EIS - linear and cyclic voltage scans), and mass loss assays (immersion in boiling HNO3 11.5 mol L–1) were investigated along the weld. The results indicated a microstructural (increase of the β phase confirmed by XRD) and morphological (modification of size and shape of grains detected by metallography) change in the mixing zone (MZ) of the welded joint. Vickers microhardness tests showed an increase in hardness of the welded region due to grain refinement and plastic deformation caused by the welding process. Linear and cyclic scanning electrochemical assays (6.0 and 11.5 mol L–1 HNO3) indicated a higher corrosion susceptibility of MZ, which was confirmed by: i) a narrow potential window of the passivation region and ii) high anodic values of the reconstruction charge, caused by contamination of the Ti alloy by Fe and Cr from the stainless steel. EIS tests also confirmed that MZ is more susceptible to corrosion attack since this region showed lower values of charge transfer resistance than the base metal. The appearance of an inductive looping in the complex plane can be associated to the formation and dissolution of the passive film of Ti oxide, as well as adsorption of species from the electrolyte. Finally, mass loss assays also confirmed the higher corrosion susceptibility of the MZ region, mainly due to Fe and Cr contamination.
Desenvolvimento de Nanoblendas PLA/EVOH biodegradáveis com características de barreira a gases e vapores
(Universidade Federal de São Carlos, 2018-07-20)
Santos, Luiza Gouvêa
;
Pessan, Luiz Antonio
;
https://lattes.cnpq.br/8276650236213537
;
Costa, Lidiane Cristina
;
https://lattes.cnpq.br/8246109223926480
Poly (lactic acid) (PLA) is a non-toxic, transparent and biodegradable aliphatic polyester, produced from renewable raw materials. This polymer meets several requirements for packaging applications, but is fragile and has lower gas and water vapor barrier properties, compared to polymers currently used in this application. The formation of PLA blends with poly (ethylene-co-vinyl alcohol) (EVOH), which has transparency and good gas barrier properties, is an advantageous alternative to modify this biodegradable polymer, in order to obtain better mechanical and barrier properties without loss of transparency. This research objective was to develop biodegradable PLA/EVOH nanoblends, for packaging application, through reactive extrusion followed by the production of films. EVOH was added in 3, 5 and 10 wt%. Two compatibilization systems, containing epoxy as the reactive group, and a catalyst of the reaction between epoxy and hydroxyl, were used for interfacial modification. The influence of the dispersed phase content, the use of different compatibilizers and the presence of the catalyst in the thermal, mechanical, rheological, optical and barrier properties, as well as the the morphology of the blends, were analyzed. It was possible to observe a reduction in the diameter of the dispersed EVOH particles in the PLA matrix through reactive extrusion and addition of compatibilizing systems. The reduction was even more significant with the use of the catalyst, reaching values very close to the nanometric scale, but resulted in the degradation of the PLA matrix. The blends compatibilized with GMA and peroxide presented the best mechanical performance, however still very close to the PLA matrix. The barrier properties of all blends were higher than those of PLA. The blends showed transparency when the film is positioned close to the object, thus presenting sufficient optical property for packaging application.
Competências para internacionalização em empresas agroindustriais: estudos de caso em frigoríficos brasileiros
(Universidade Federal de São Carlos, 2018-07-23)
Santos, Alexandre Borges
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Batalha, Mario Otávio
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https://lattes.cnpq.br/1015001063418091
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https://lattes.cnpq.br/2837720516648854
The literature on corporate internationalization has a solid theoretical background, the result of long years of intense debate based on studies mostly carried out with multinational enterprises from developed countries. However, there are several conditioning factors in this type of analysis that need to be better understood, especially those related to characteristics of specific sectors of the economy. This is the case of agribusiness. Since some companies have achieved global leadership, the analysis of the internationalization process of some relatively well-positioned Brazilian agrifood multinationals in the global economy could help to extend the knowledge in the field of international management by incorporating specific elements of agro-industry. The main objective of this work, therefore, is to identify and evaluate the core competences for the internationalization of Brazilian slaughterhouses. Concomitantly, an analytical framework based on the principles of the behavioral model of internationalization, the resource-based view and the agrifood supply chains was proposed and empirically tested. To achieve these objectives, exploratory case studies were conducted with four Brazilian slaughterhouses with international presence. Directors and managers with extensive knowledge of the international operations and that were involved at some point and in some way in the internationalization decisions of the companies were interviewed. In general, empirical evidence suggests the existence of two levels of competences for internationalization: generic and core competences. The generic competences are those related to the specificities of the agrifood chains in general, therefore, common to all internationalized slaughterhouses. The core competences, on the other hand, are rare and begin to be developed soon after the birth of the multinational enterprise. The barriers, the motivations and the entry modes common to the cases were identified and discussed. All these elements were incorporated into the proposed framework. The results of this study reinforce the importance of the study of sectoral elements (meso-level) for the identification of competences (micro-level) for internationalization of agribusiness enterprises.
Indicadores para a integração da gestão das águas subterrâneas e o planejamento do uso e ocupação do solo
(Universidade Federal de São Carlos, 2018-07-24)
Ospina, Dánika Andrea Castillo
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Hanai, Frederico Yuri
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https://lattes.cnpq.br/7651828454575175
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https://lattes.cnpq.br/6001184273937230
Groundwater is a vital resource to the society and water ecosystem. Therefore, environmental management policies and instruments need to be directed at preserving and protecting it. However, there are current evidences of indiscriminate drilling of wells and contamination of aquifers as a consequence of landuse, final disposition of liquid and solid wastes, population density and gaps in the groundwater management. These facts are threats to the hydrological cycle and the public and environment health. Recently, groundwater policies and instruments have showed a need for an articulated approach with landuse planning and diverse studies proposed methods and thechniques where groundwater was an element in risk. Nevertheless, these studies did not contemplate guidelines for integration of groundwater management (GAS) and landuse planning (PUOS). Therefore, the goal of this work is research, analyze and suggest indicators for integration of GAS and PUOS. The research is developed by the following steps: 1) Systematic literature review (RBS), to generate information about criteria, aspects and potential indicators within an integration approach. 2) Definition of potential indicators to create an integration approach between groundwater management and landuse planning, using the criteria, principles and descriptors defined; 3) Defininition of priorities between indicators adopting an analytic hierarchy process (AHP) ; 4) Development and anyzing an indicator framework adopyting the 3S metodology and the content validity index (IVC). The results indicated that there are many tools related with monitoring, dimensioning, use intensity of groundwater and few tools about participation, normative eficiency in management groundwater and landuse planning. Despite, this information was useful to formulate an indicator framework and it has 20 principles, 64 descriptors and 45 indicators and was created with differents systematized procedures, such as, selection, analysis and validation. However, future studies are necessary for the use of the GAS and PUOS indicator framework, as well as, studies to evaluate indicators applicability in a case study with specific socioeconomic, political and environmental realities.