Browsing by Issue Date, starting with "2019-12-10"

Filter results by year or month

Now showing 1 - 20 of 11482

Os efeitos e as medidas: crise e contrarreformas e as respostas da FEM-CUT/SP
(Universidade Federal de São Carlos, 2019-12-10)
Pereira, Eduardo José Rezende
;
Carvalho, Joelson Gonçalves de
;
https://lattes.cnpq.br/0141039743607067
;
https://lattes.cnpq.br/3848510860452930
The international crisis of the capitalist system affects the economic development indices of central and peripheral countries. Brazil feels the deepening effects of this economic crisis along with a political crisis, which places employers' interests on the government's agenda. Deindustrialization and the retrogression of social and labor legislation cause difficulties in the form of collective organization of the working class. We seek to understand how the Federation of Metalworkers Unions of the Central Única de Trabalhadores de São Paulo (FEM-CUT/SP) operates in this scenario, mapping its responses and classifying them in two ways: those related to organizational and financial changes of the entity, and also those related to readjustments of tactics and political discourse.
Racismo ambiental e violência identitária: um estudo sociológico dos impactos socioambientais de projetos de barragens no estado do Mato Grosso
(Universidade Federal de São Carlos, 2019-12-10)
Poquiviqui, Agilson
;
Martins, Rodrigo Constante
;
https://lattes.cnpq.br/6617183095074852
;
https://lattes.cnpq.br/5932989317554688
This thesis aims to understand the social and identity impacts in the life of the affected caused by the probable establishment of the dam of the Castanheira Hydroelectric Power Plant, located in the city of Juara, Mato Grosso. The realization of this venture in the region can, directly or indirectly, reach indigenous, riverside and fishermen ethnic groups of the Arinos Valley region, in so far as it promotes not only environmental inequalities, characteristics of this type of mega water investment, but above all by inducing society to new modalities of environmental racism towards the social agents of the flooded area. Power generation policies based on water resources have met capitalist interests, as well as the market, which has become increasingly aggressive, thus disregarding the position of social agents, alienating them from their rights and confronting their freedoms. The approach to the problem in question is via qualitative social research. More specifically, the social and environmental problems that transform the relationships of these social agents will be approached from the beginning of the case studies, focusing on life stories. For data generation were used documentary research and semi-structured interviews, as well as photocumentation and field notebook. The consequences of the construction of the HPP consists, to a certain extent, in the denial of rights and disrespect for the freedom of those affected, especially in relation to the different ways of being and being in the world, ie, there is no respect for identities and memories. For it is perceived apparent disregard for the material and immaterial goods of these peoples. Such evidence is a form of environmental racism, which occurs from the planning stage, and even before the project obtains a land occupation license, the life expectancies of those affected are already affected.
Estudantes indígenas e os desafios pedagógicos no ensino superior
(Universidade Federal de São Carlos, 2019-12-10)
Oliveira, Sirlene Maria Dias de
;
Reyes, Cláudia Raimundo
;
https://lattes.cnpq.br/5187942717120318
;
https://lattes.cnpq.br/0593765673749742
The Affirmative Action Policies in rules ways are to attend the demands of different collectives discriminated by social-economics exclusions occasioned in the past or the present. These actions aim to extinguish discriminations of caste, ethnic, racial, religious, gender. In Brazil, we made legal advances in educational terms by implementing higher education vacancy reserve policies. In this context, this research is part of the policies of reserving vacancies instituted at the Federal University of Tocantins, UFT, adopted since 2004, which aims to promote the democratization of access of indigenous people. I chose the empirical locus of research, specifically the Palmas Campus, and the interlocutors, indigenous students of different ethnics. The general purpose of this study was to identify and analyze the pedagogical challenges faced by indigenous students at the university. And to achieve this general intent, initially, this study was based on the bibliographic research, succinctly, from Brazilian colonization, more specific in the Jesuit period until the present, in which was necessary to make a historic rescue under the educational vision observing above all its social and political dimensions to a better comprehension the needs of these people to enter high education. In the documental research phase, the Institutional Development Plans, PDI, were analyzed as primary sources and the Institutional Minutes as secondary sources. On the empirical research, which adopted as the main method of data collection the strategies of wheel conversations approaching some access, permanency, academic performance themed discussions. In this way, it demonstrates, in conclusion, that the inclusion policies of minorities excluded from the high education system had a significative advance. Over the past decade, access to “the different” has been provided through the affirmative action policy, vacancy reserve, also known as “quotas”. However, the diverse pedagogic and economic challenges still exist to be overcome by the indigenous students as well the university, in the way that offering access with different rules is not enough, it is needed to adopt permanency policies beyond the economic mechanism, scholarship, that prioritize the academic formation with strategies dissimilar to overcome the pedagogic challenges, that recognize them and work their differences, but don't downgrade them, otherwise it will be reinforcing the exclusion.
Dispositivo de Selagem para Manipulador Industrial
(Universidade Federal de São Carlos, 2019-12-10)
Barone, Lucas Caliento
;
Inoue, Roberto Santos
;
https://lattes.cnpq.br/6221209121565990
;
https://lattes.cnpq.br/3392260397812733
-
Modelos multivariados para dados de contagem com excesso de zeros
(Universidade Federal de São Carlos, 2019-12-10)
Santana, Rogério Alves
;
Andrade Filho, Marinho Gomes de
;
https://lattes.cnpq.br/4126245980112687
;
https://lattes.cnpq.br/9009192033753429
In this thesis we present two new distributions for modeling multivariate counting data with overdispersion or underdispersion, zeros excess and correlation. Named the zero-inflated multivariate COM-Poisson (ZICOMP Type I) and (ZICOMP Type III) distributions, their constructs were based on the extent in of the zero-inflated multivariate Poisson distributions ZIP Type I and ZIP Type III in ((LIU; TIAN, 2015); (TIAN et al., 2014)). We developed important theoretical properties of the two distributions, their regression models, likelihood ratio hypothesis testing to help choose the best model, and a diagnostic analysis for the ZICOMP Type I distribution regression model. The proposed distributions showed in both simulation study good results and real data analysis. In a real data analysis the proposed distributions showed better adjustments when compared to the ZIP Type I and ZIP Type III distributions, according to the Akaike (AIC) and Bayesian (BIC) information criteria.
Ação da supervisão de ensino paulista: legal-racional e patrimonialista
(Universidade Federal de São Carlos, 2019-12-10)
Piccoli, Denise Fujihara
;
Riscal, Sandra Aparecida
;
https://lattes.cnpq.br/0328618752218708
;
https://lattes.cnpq.br/0169735705679214
This research aims at analysing the teaching supervisor actions at the State Department of Education of the State of São Paulo. The position of teaching supervisor is the one which, since its origin, would be in charge of guaranteeing the actions standardization of the actions of the teaching system as well as eliminating the local practices which still show a patrimonial character by law enforcement and monitoring. This research is based on the theoretical framework developed by Max Weber. The main purpose of this study is to understand the activities developed by the teaching supervisor at the State Department of Education of the State of São Paulo from 2012 to 2016. To achieve this goal, five attributions of the teaching supervisor will be analysed: 1) the provision of classes for hired teachers; 2) recruitment of teaching coordinators for the Pedagogical Area; 3) recruitment of school principals to work at schools which participate in the “Integral Education Program”; 4) the transference process of the teaching supervisor, and 5) the process of substitution of the teaching supervisor. We also aim at identifying the possibility of the presence of traditional elements resulted from a patrimonial legacy originated from the formation of the Brazilian State and the rational elements introduced in the nineteenth century. Our purpose is to understand the practices of this professional, whose function, among others, is to guide and supervise others in terms of their adherence to the guidelines, seeking to standardize the procedures and to eliminate individual interferences. To achieve this goal, this paper analyse the Federal Register of São Paulo and information from people whose function are listed above was collected. It is observed that, even today, the actions of teaching supervisor has not been able to guarantee that local actions follow the same principle in every educational system nor succeed in the annulment of patrimonialist practices.
Simulação da transferência de calor em um biorreator de leito empacotado operado em modo pseudo-contínuo (BLEPC) para fermentação em estado sólido (FES)
(Universidade Federal de São Carlos, 2019-12-10)
Calixto, Lucas de Oliveira
;
Casciatori, Fernanda Perpétua
;
https://lattes.cnpq.br/1269950652196294
;
https://lattes.cnpq.br/2087504555869417
The pursuit of renewable energy sources and economically viable methods in energy production has become imperative nowadays. In developing countries with high availability of arable land, there is the possibility of exploring agricultural and forest crops to obtain biomass with potential for bioenergy production. Producing enzymes necessary for the synthesis of biofuels may represent an important step for the economic viability of the production routes. Due to the need for acid and/or hot pretreatment in the biomass used for second generation bioethanol and biodiesel production, solid state fermentation emerges as an alternative bioprocess for the production of these enzymes, as it favors the adaptation of thermophilic filamentous fungi that produce thermostable enzymes, which may act at acidic pHs. The absence of movement in packed-bed bioreactors is ideal for the growth of shear-sensitive filamentous fungi. However, using such reactors is likely to result on reduced yield due to overheating and drying of the medium due to air percolation, and their industrial applicability is hampered by not allowing a continuous process. This paper presented data obtained via computational simulation on MATLAB of a pseudo-continuous process, aiming to describe temperature and growth profiles along a modular packed-bed reactor, which promotes an intermittent semi-continuous plug-flow on a solid-state fermentation. Two filamentous fungi - Myceliophthora thermophila and Aspergillus niger - were studied for different modular exchange times, obtaining up to 1.67% of maximum bioreactor temperature reduction when compared to the traditional batch process. Although it still needs further studies of its applicability to industrial processes, the modular bioreactor proved to be a promising alternative to solid-state fermentation, as it presented reduction in maximum bioreactor temperature and it allows for a semi-continuous process mode with removal of fermentation product on intervals equal to the time between modular change.
Perspectiva e experiências dos trabalhadores rurais da cooperativa mista de Novo Horizonte do norte-MT
(Universidade Federal de São Carlos, 2019-12-10)
Crubelati, Ariele Mazoti
;
Scopinho, Rosemeire Aparecida
;
https://lattes.cnpq.br/4770451465556845
;
https://lattes.cnpq.br/6900284589755824
The general objective of the study was to analyze the limits and potentialities of cooperativism and to understand the historical construction of the production of material life of COOPERNONTE members to constitute themselves as a cooperative. The specific objectives were (i) to reconstruct the history of the cooperative from the existing documentation and memory of the members; (ii) demographically describe the members and family; (iii) describe the dynamics of the cooperative; (iv) analyze the limits and potentialities of the members‟ material production in the reproduction of their social existence as rural settlers; and (v) understand the intrinsic challenges in cooperative relationships and cooperative work with family farmers in these settlements. Our questions aimed to understand which representations about workers‟ cooperativism are present and dispute the organizational process of COOPERNONTE? The research uses as a strategy of searching information the interview with the members and their families and daily observations, recorded in a field notebook. Approaching the conception that elects the oral narratives, the images and the own memories of the members as a research source, we use the Oral History as a methodological tool. The research looks beyond the cooperative, paying attention to its members, because the cooperative institution does not necessarily represent a cooperative work. By listening to them and tracing their historical reality, both individual and collective, of the rural man, migrant, settler of agrarian reform, small producer and cooperative member of the Mato Grosso microregion, our research expectation was to understand their motivations and how they support themselves in maintaining in society, in an attempt to analyze work as an educational principle. Assuming that the cooperative is politicized is to define that it is based on the precepts of solidarity, cooperation and other assumptions defended by the solidarity economy. However, the solidarity economy is mistaken in the idea that a course, lectures or the engagement of people who defend it will make them solidary. It takes more than that. It is necessary to listen, interpret, dialogue and understand what the subjects have to say about the cooperative and not tell them how it has to be a cooperative; think about how the real cooperative works and not the idealized cooperative. The producers have a lot to say about the cooperative, they know it very well, because it is their creation. COOPERNONTE is not a cooperative whose main premise is self-management, solidarity or solidarity economy. This may be a problem for us as researchers, as academy, but not for this group of members. Not defending the banner of solidarity economy, for example, does not mean that these workers are not working together and thinking collectively. We realize in these producers that more than thinking about guiding concepts, their sense of belonging to a group motivates them as a cooperative. Recognition, especially through work, as a settler, a small dairy producer, cooperative member and active in society, is what encourages their daily struggles and motivates them as a cooperative.
Caracterização da entomofauna em áreas iniciais de restauração ecológica com sistemas agroflorestais (SAFs) e plantio misto com espécies nativas
(Universidade Federal de São Carlos, 2019-12-10)
Providello, Alexandra
;
Penha, Alessandra dos Santos
;
https://lattes.cnpq.br/9799774247477252
;
Fujihara, Ricardo Toshio
;
https://lattes.cnpq.br/1863735094370774
Agroforestry systems (AFS) are consortia of crops with tree species and can be used as an alternative for the ecological restoration of degraded forest ecosystems. However, little is known about the entomofauna in newly implemented systems. The objective of this study was to characterize the edaphic entomofauna in the initial areas of two models of ecological restoration: AFS and conventional restoration, under different weed management. The study was conducted at CCA/UFSCar, Araras, SP, in four areas (2,160m2 each): AFS with herbicide application (SAFh), AFS with mechanized brush cutting (SAFm), conventional herbicide restoration (RCh), and restoration with mechanized mowing (RCm). In the AFS areas, seedlings of 10 pioneer or secondary native tree species (n = 120) were planted, along with coffee as an agricultural species in the planting lines; in conventional restoration, only seedlings of 20 native tree species (n = 240) were planted. Entomofauna was collected in July and December 2017 using pitfall traps (n = 10), arranged in a transect 4 m equidistant from each other, and left in the field for 120 hours. A total of 11,472 individuals were sampled, distributed in 11 orders and 48 families. The most representative groups were Collembola (55.19%), Hymenoptera: Formicidae (32.28%), Coleoptera: Carabidae (3.62%), and Diptera: Cecidomyiidae (1.66%). A significant difference was observed in abundance (number of individuals per arm-1) between the areas by the Kruskal Wallis test (H = 15.45, p = 0.0014), but not for richness (n) and diversity (H) (P <0.05): SAFh (29, 1.21), SAFm (30, 1.04), CRh (28, 1.37), CRh (36, 1.52). Restoration models and weed control methods influenced only the abundance of insects. As these are areas in the early stages of the restoration process, monitoring will continue to evaluate possible changes in entomofauna dynamics.
Efeitos da implantação da UHE Colíder na dinâmica fluvial e na qualidade da água do curso médio do Rio Teles Pires (Mato Grosso)
(Universidade Federal de São Carlos, 2019-12-10)
Andrade, Leila Nalis Paiva da Silva
;
Souza, Célia Alves de
;
https://lattes.cnpq.br/4260661798494235
;
Santino, Marcela Bianchessi da Cunha
;
https://lattes.cnpq.br/2356641063223397
This study aimed to discuss the process of land occupation and land use, as well as evaluating river dynamics and water quality in the middle course of the Teles Pires river. This study is predicated on the hypothesis that the construction and installation of a dam on the river, which is associated with deforestation, altered the fluvial dynamics of the stretch under study, as well as affecting water quality. Five sampling campaigns were carried out—2016/2, 2017/2 and 2018/2 (July/drought) 2017/1 and 2018/1 (January/rainy)—for collection of sediment, soil and water, instrumentalization, and monitoring of the river banks. We conducted analyses of the granulometric composition of soil and sediments, using the sieving, evaporation and pipette method. We also used Kruskal-Wallis and principal component analysis (PCA) to statistically test limnological variables, hydrodynamics and bank erosion. In laboratory, we calculated water flow, the water quality index (WQI), soil loss, and the magnitude of erosion. Maps (location, land cover and land use) and sketches (cross-section, longitudinal, and erosion of the banks) were created. The results of the first chapter covered the environmental characterization and morphometry of the watershed and river stretch under study. The Teles Pires river was classified as an 8th-order channel, meandering and with rectilinear stretches. The second chapter presented the processes of land occupation and land use in the last 30 years, such as urbanization, agricultural activities and the installation of the Colíder Hydroelectric Power Plant (HPP), in the municipalities of Itaúba, Colíder and Nova Canaã do Norte. In the next chapter, we quantified the hydrodynamic variables and bank erosion before and after the installation of the power plant. The results indicate that there were significant alterations in the river channel, which changed from a lotic to a lentic environment. The banks eroded slowly, becoming subject to the process of corrosion. However, we found that erosion increased by 12% in 2018 compared to 2017. In the fourth chapter, we quantified the input of sediment transport in the Teles Pires river. Sand, silt, clay, and larger grains such as blocks, pebbles and granules were observed on the bottom of the channel. In this chapter, we also addressed the forms of hydrotransported sediment deposits in the river channel, such as islands and bars. The final chapter presents the results of limnological variables and the water quality. Studies have shown that weighting indicates optimal values in 2018/2, compared to the beginning of monitoring, the WQI value is decreasing. We can confirm that several Permanent Preservation Areas have been deforested for the installation and operation of the Colíder HPP. These hydropower projects bring benefits with the generation of electricity, but they cause harm over time, and at a certain point the damage to the environment will be irreversible. Therefore, studies that monitor the hydrosedimentology and water quality of river networks are extremely relevant, especially when changes become harmful to biota.
Desenvolvimento de um novo protocolo sequencial três etapas para a síntese de 1,2,3-triazóis 1,4-dissubstituídos assistida por irradiação de micro-ondas
(Universidade Federal de São Carlos, 2019-12-11)
Silva, Everton Machado da
;
Schwab, Ricardo Samuel
;
https://lattes.cnpq.br/6935890756504964
;
https://lattes.cnpq.br/1506429039505519
Heterocyclic compounds has received a great attention in the branch of synthetic chemistry due to their wide field of applications, and among these, 1,2,3-triazoles are highlighted. In this work, a new three-step sequential protocol for the synthesis of 1,2,3-triazoles-1,4-disubstituted was developed using reactions under microwave irradiation. The reaction procedure aims at the combination of 3 sequential steps: a cross-coupling reaction of Sonogashira, followed by a deprotection reaction for formation of the terminal alkine and a 1,3-dipolar cycloaddition reaction catalyzed by copper (I) to obtain the 1,2,3-triazoles-1,4-disubstituted. The starting material used was 2-methyl-3-butin-2-ol, also known as MEBINOL, which has a much lower cost when compared to the analogue, trimethylsilacetylene. The deprotection stage represented an obstacle to be overcome in this reaction, considering that the reactivity of the substrates used proved to be extremely susceptible to the electronic nature of the substituents located in the aromatic ring. When electronic density removal groups were used, the 1,2,3-triazoles-1,4-dissubstituted were obtained with yields up to 74%. However, when electron donor groups were used, there was a significant reduction in yield. It is important to mention that for these cases the increase in the temperature of the reaction did not result in any increase in yields. The results which the development of a new three-step sequential procedure for the synthesis of 1,2,3-triazoles-1,4-disubstituted will be presented in detail. It should be noted that the sequential procedure directed at reducing the generation of residues from the purification of the intermediates, as well as at the possible loss of the terminal alkines generated in the deprotection stage, which in their majority are relatively volatile. Finally, it is important to mention that the use of microwave irradiation has reduced the reaction time involved in the three stages, contributing to increase the sustainability of the synthetic route.
Filo Arthropoda: abordagem do tema pelos livros didáticos das escolas públicas de Limeira, SP
(Universidade Federal de São Carlos, 2019-12-11)
Xavier, Jessie
;
Fujihara, Ricardo Toshio
;
https://lattes.cnpq.br/1863735094370774
;
https://orcid.org/0000-0003-2776-5559
;
https://lattes.cnpq.br/8760808023949730
The Phylum Arthropoda constitutes a complex group of invertebrate animals with a wide distribution in environments worldwide, forming the animal kingdom's phylum with the highest number of representatives. In the teaching of Biology, as well as other disciplines, the textbook (TB) remains an important resource for presenting various themes to students, including the "Phylum Arthropoda" of invertebrate beings. Considering the issues surrounding the use of textbooks in the teaching of Science and Biology and the importance of arthropods in various aspects, this study aimed to analyze the treatment of the Phylum Arthropoda in Biology textbooks used by the state public school system in the city of Limeira, SP, and the possible influences of these materials on student learning. For this purpose, ten schools were selected using a sampling method based on regions of the municipality. In total, the educational institutions had six different collections of textbooks in the field, which were analyzed in two ways: first, quantitatively, considering the allocation of pages for the theme, and then qualitatively, through content analysis, following specific criteria. The results suggest some difficulty in generalizing regarding the quality of textbooks, as each criterion of analysis alternated between positive and negative highlights. However, there are reasons to believe that the "Ser Protagonista" and "Biologia Hoje" collections have more positive aspects than other collections, considering the analyzed criteria. On the other hand, the "Biologia - Unidade e Diversidade" collection showed more points to be improved. Studies like this emphasize the importance of a solid initial and continuous training of teachers so that they can have a critical capacity for the selection and use of textbooks in Biology classes, aiming for better results in the teaching and learning process.
O ensino de polinômios e gráficos na educação básica
(Universidade Federal de São Carlos, 2019-12-11)
Sato, Humberto Domingues Thiago
;
Rezende, Alex Carlucci
;
https://lattes.cnpq.br/4190869482260889
;
https://lattes.cnpq.br/1166184740731058
In this monography, we study polynomial functions, starting with a brief historical research about how the general solutions of the first to third degree polynomial equations were constructed, then we proceed to analyze the important points that the National Curricular Parameters stand out in relation to the teachings of algebra and polynomials. In the development of the work, we also address the demonstrations of the Fundamental Theorem of Algebra (analytic and algebraic proofs) and the demonstrations of the general solutions of the polynomial equations up to degree three by means of radicals. Finally, some activities are introduced to be applied in the classroom in order to improve the teaching and learning process through Geogebra computational software. We apply one of these activities in a classroom and we discuss the results.
O trabalho em equipe no contexto da intepretação entre língua portuguesa e libras: uma experiência na esfera comunitária
(Universidade Federal de São Carlos, 2019-12-11)
Pedrosa, Luiza
;
Cabello, Janaina
;
https://lattes.cnpq.br/4349074907357325
;
https://lattes.cnpq.br/7486142193021846
This paper presents and discusses the performance of a team of translators / interpreters of Libras (TILS) in a course offered to the community and which aims to bring information to groups of women through training on their rights. The course is offered in a city in the interior of the state of São Paulo and is held weekly, involving different themes that are interconnected to the daily life of the female community (such as, for example, women's health, protection against domestic violence and legal guidance). When the meeting became accessible to deaf women, the work of the TILS team came into question, which began to operate in a context that we characterize here as a community. Therefore, with this qualitative research, it is intended to present the organization of the TILS team active in the weekly meetings of this course, presenting and questioning the need for prior and subsequent organization of the interpretation team considered more appropriate for the work to be developed, investigating the strategies adopted by this team.
Imageamento magneto-ótico quantitativo em filmes finos supercondutores bicamada e com gradiente nanométrico de espessura
(Universidade Federal de São Carlos, 2019-12-11)
Pinheiro, Lincoln Brum Leite Gusmão
;
Motta, Maycon
;
https://lattes.cnpq.br/8340540626164812
;
Ortiz, Wilson Aires
;
https://lattes.cnpq.br/0241177338066307
Vortex matter in superconductors has been the focus of research of both theoretical and experimental groups around the world. When developing superconducting devices patterned on thin films one should bear in mind that flux avalanches might occur for some materials at a certain range of applied fields and temperatures. For example, technological applications of NbN thin films may be threatened by the occurrence of magnetic flux avalanches of thermomagnetic origin appearing in a large portion of the superconducting phase. This work deals, in parallel, with two distinct superconducting thin film systems by the technique of quantitative magneto-optical imaging: A bi-layered specimen composed by overlapped layers of Nb and NbN and wedge-shaped superconducting thin films of V3Si and Pb. AC susceptibility and DC magnetometry were used to characterize both the single and multiple-layer films. Magneto-optical imaging reveals interesting features of the dendritic flux avalanches in the bi-layer system, including halo-like patterns around them, and crossing avalanches. The wedge-shaped systems opened a new way to tune the critical current in the film and allowed us to study the resulting changes in the flux penetration patterns along the film. The observation of flux avalanches reported here implies that, as usual, attention to this feature must be given when films with variable thickness and bi-layers are envisaged for possible applications.
Verificação à fadiga de vigas de pontes de concreto armado: estudo comparativo entre o uso do trem-tipo normativo e as cargas reais nas rodovias brasileiras
(Universidade Federal de São Carlos, 2019-12-11)
Mascarenhas, Fernando Júnior Resende
;
Christoforo, André Luis
;
https://lattes.cnpq.br/7623383075429186
;
https://lattes.cnpq.br/7101617534129526
Bridges and viaducts are important in the social and economic dynamics of a nation, and they are very important elements in transportation systems. In Brazil, freight transportation is predominantly by road. Therefore, viaducts and bridges are directly affected by the predominance of the road matrix. In recent years there has been an increase in the flow and weight of vehicles commuting on highways, which requires special attention to the structural performance of bridges and viaducts. Among the several structural problems to which these structures are susceptible, the longitudinal reinforcement fatigue deserves attention, especially in view of the increasing number of heavy vehicles. In spite of the heterogeneity of the real vehicles that travel in bridges and viaducts, the different national and international standards of mobile loads for bridges and road viaducts have their respective load trains for the dimensioning of such structures. The Brazilian Standard, NBR 7188:2013, has the TB 450 as its load train whose configuration represents a type vehicle of 450 kN. Based on that, this dissertation aims to analyze the fatigue in concrete and longitudinal reinforcement of beams of theoretical models of reinforced concrete bridges consisting of two, three and five beams. This estimate is made by considering the actual number of heavy vehicles from 2 to 6 axes of road stretches in the state of São Paulo over 9 years of data. Thus, the objective is to estimate the accumulated damage due to fatigue in concrete and longitudinal reinforcement; estimate the fatigue life of concrete and longitudinal reinforcement of bridge beams with different lengths; evaluate the deleterious impacts of fatigue on the different bridge lengths and built with two, three and five beams; to evaluate whether two-girder reinforced concrete bridges are recommended for design on high-traffic highways and to analyze whether the fatigue check indicated by the Brazilian standard using the Brazilian standard train is capable of representing the flow of real heavy vehicles. The methodology of this research is based on literature review about the phenomenon of fatigue and the necessary calculation procedures. These calculations will be performed using analytical methods and the use of Ftool to determine bending moments due to permanent and mobile loads in the span of the beams analyzed. For the calculation and verification of fatigue, theoretical bridge models with two, three and five beams with spans L of 10, 15 and 20 meters (m). In addition, two calculation scenarios are considered, where in Scenario 1 only the loads of 2 to 6 axle real vehicles are considered; and in Scenario 2, in addition to the actual vehicle loads, the 5 kN/m2 distributed load representing vehicles that can travel on the back and front of the analyzed vehicles is considered. Based on this, at the end of this project the following conclusions were found. The fatigue damage values calculated for the concrete were small and, thus they were considered negligible in all models analyzed in both Scenarios 1 and 2. As described in other studies found in the literature, the deleterious effects of fatigue are more noticeable in the longitudinal reinforcement than in the concrete itself. Thus, the fatigue life found for the longitudinal reinforcement deserves attention because in some cases it is less than the average design time of 75 years. In addition to this, the increasing of the gap makes the bridges have longer fatigue life. In addition, 5-beam bridges proved to be the longest in life, and 2-beam bridges are not recommended for locations with heavy truck traffic. Finally, it was found that the Brazilian normative type train is able to represent the current traffic of heavy vehicles.
Os usos da forma de tratamento de segunda pessoa singular “vos” entre os estudantes na Universidade de Nariño – Colômbia
(Universidade Federal de São Carlos, 2019-12-11)
Caliri, Izabel dos Santos
;
Yokota, Rosa
;
https://lattes.cnpq.br/9230517686993400
;
https://lattes.cnpq.br/6927634435188516
El tema de esta investigación es el uso de la forma de tratamiento en la segunda persona del singular vos entre los estudiantes de la carrera Lengua Castellana y Literatura del 3er. semestre de la Universidad de Nariño (UDENAR) en Colombia. Nuestro objetivo es identificar como esos estudiantes utilizan el vos para comunicarse en contexto informal. En cuanto a la base teórica, para comprender la evolución de los pronombres de tratamiento fueron consultadas varias obras en especial, para entender las variedades de las formas de tratamiento en Colombia, Montes Giraldo (1967), Fontanella de Weinberg (1999), Calderón Campos (2010), Jang (2013, 2015), RAE (2014) e Rodríguez (2014). Nuestro estudio metodológico fue de paradigma cualitativo. La recolección de datos fue realizada a través de grabaciones en audio de un grupo de estudiantes universitarios en situaciones espontáneas. Enseguida a la transcripción del material grabado, se hizo el contaje del uso de las formas de tratamiento y la clasificación cuantitativa y cualitativa de acuerdo con los contextos y características de cada participante, ya que no es posible establecer generalizaciones en razón del universo de participantes de la investigación. Como resultado, identificamos que el uso de vos es bastante híbrido en la charla de los participantes y que el uso del voseo a través del habla espontánea entre los participantes representa estrategias de cortesía positiva o de solidaridad. Además, detectamos que el vos es más frecuente que tú cuando los participantes quieren presentar cercanía y confianza.
Efeitos do Programa de Aquisição de Alimentos da Agricultura Familiar no município de Angatuba – 2011 a 2017
(Universidade Federal de São Carlos, 2019-12-11)
Fernandes, Larissa Cristina de Almeida
;
Santos, Leandro de Lima
;
https://lattes.cnpq.br/2750978055015275
The aim of the work was to analyze the effectiveness of the Family Farming Food Acquisition Program for family farming in the municipality chosen for study, Angatuba/SP. The main aim was to understand the effects of the implementation of public policy for farmers during the period from 2011 to 2017, the period in which it was active in the municipality, and finally to understand the effects of the suspension of new institutional purchasing projects via PAA for families of previously benefited producers.
Identificação de perfis de permissões em aplicativos móveis utilizando agrupamento e visualização
(Universidade Federal de São Carlos, 2019-12-12)
Guiraldelli, Francisco Augusto Cesar de Camargo Bellaz
;
Faceli, Katti
;
https://lattes.cnpq.br/4451540730749377
;
https://lattes.cnpq.br/5586175745665699
In the last decade, mobile applications have gained widespread use through smartphones, it has radically transformed the way people can access and use the media, bringing the internet and many everyday tasks in the palm of their hands. Such ease, however, brought with it new challenges, such as the need for devices with high energy efficiency, good processing capacity, performance, good ergonomic form, lightweight and easy handling. Despite the great efforts expended by all of these companies, some issues with mobile application classification are at the top of many developers' concerns, as implementation defects, lack of domain knowledge or even preparation for future functionalities can cause mobile applications to consume hardware resources incorrectly allocated to both the application user's need and the domain for which it was developed. Focusing on the identification of permissions' profiles, the correct use of resources and the way the application is implemented, this research proposes a method that involves Google Play Store data collection, to use techniques like clustering and visualization, which will provide to device manufacturers, mobile application developers, and researchers a simple way to compare and analyze mobile applications that use similar features. To evaluate the method, a case study related to the energy consumption of mobile applications was conducted, which proves its effectiveness in this type of analysis.
Qualidade do detrito na perda de massa do material particulado de eichhornia crassipes (mart.) solms sob efeito da temperatura
(Universidade Federal de São Carlos, 2019-12-12)
Souza, Brayan Pétrick de
;
Bianchini Júnior, Irineu
;
https://lattes.cnpq.br/0659731944736389
;
https://lattes.cnpq.br/9604874066821120
Carbon cycling of macrophytes in aquatic ecosystems occurs both by the characteristics of the environment (extrinsic properties) and by the different characteristics of their debris (intrinsic properties). So, in this study, you researched a proven carbon cycling of different initial Eichhornia crassipes debris compositions and humic material formations under the effect of increasing temperature on decomposition. A plant, inoculation material and incubation water were collected in the Barra Bonita reservoir in Barra Bonita / SP. Three types of experiments were performed that contain different initial compositions of macrophyte debris: (i) natural debris, simulating or newly added debris to the sediment; (ii) remove the aqueous extract, simulating debris after a few days of decomposition; and (iii) remove the alkaline extract, simulating advanced stages of decomposition. The materials were incubated for 120 days in anaerobic and aphotic chambers, at temperatures of 20 and 28 °C. A temporal variation of the mass loss caused by experiments, parameterizes the kinetic model using the Levenberg-Marquardt iterative algorithm, and is also calculated by coefficients Q10. The statistics employed follow a significance of 5%. By mathematical model adopted, higher values of mineralized carbon and wet material training were found without decomposition experiments, including natural debris and for experiments with debris without aqueous extraction, and the values of these fractions detected in this experiment may be affected by chemical use. the initial debris suffered prior to incubation. The refractory fraction was the main non-experimental component that only removes the aqueous extract. The more refractory to debris, the more transformations are necessary for it to be incorporated by the microbial community, as demonstrated by the parameterization of the mathematical model used. Decomposition coefficients (mainly refractory refraction) were more affected by quality than temperature increase, while Q10 values indicate higher sensitivities by temperature variation for experiments without water and alkaline extraction. On these evidences, the debris quality as well as temperature contributed to the increase in mineralization values. Mathematical modeling used in experiments clearly expressed as mineralization routes of different debris. Although the increase in temperature causes a mineralization process in the aquatic environment to be accelerated, the quality of the debris was more significant.