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Importância dos efeitos de absorção no espalhamento elástico de elétrons por moléculas
(Universidade Federal de São Carlos, 2017-03-11)
Ferraz, Jorge Ronan
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Machado, Luiz Eugenio
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https://lattes.cnpq.br/1364862671456515
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https://lattes.cnpq.br/1788681502536563
In this work we study the importance of absorption effects on the electron-molecule interaction dynamics. These effects are simulated by a complex optical model potential from which the imaginary part is an absorption potential. In the numerical solution of the scattering electron wave equation, Padé’s approximant technique is used in association with the partial-wave expansion method. In our calculations, the scattering wave function, the interaction potential and all the related matrices are single-center expanded about the center of mass of the molecule, in terms of the angular symmetry-adapted functions xpM. The well-known convergence difficulty for polar targets is overcome in our studies by the use of a closure technique based on the First Born Approximation. We carry out studies on electron scattering by eight molecules: ammonia, formaldehyde, fluoromethane, formamide, dimethyl ether, dimethyl sulfide, pyrimidine, and acetone, all of them featuring a strong permanent electric dipole. We report elastic electron-molecule scattering differential (DCS), integral (ICS) and momentum transfer (MTCS) cross sections, as well as electron-molecule scattering total (TCS) and total absorption (TACS) cross sections for all the above-mentioned molecules. Our theoretical results are compared to experimental and other theoretical data available in the literature. Our results show the importance of absorption effects on electron-molecule scattering for incident electron energies in the (20-500) eV range.
“Em breve nos cinemas”: assimilação e articulação do formato trailer pela experiência cinematográfica brasileira
(Universidade Federal de São Carlos, 2017-03-13)
Jaber, Fernanda Affonso de André
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Araújo, Luciana Sá Leitão Corrêa de
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https://lattes.cnpq.br/9890886509956837
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https://lattes.cnpq.br/2588450957497427
The object of study of this dissertation is the film trailer in the context of Brazilian cinematic experience. From a historical perspective, this research clarifies how the relationship between the Brazilian trailer and the U.S. benchmark developed over time, and what were the influences of the imported object, both on the trajectory of the domestic trailer in the market and on its mode of discourse. The main concern was to understand where the trailers fit in the history of Brazilian cinema, a market dominated by U.S. productions. The research methodology used information contained in the archives of periodicals to articulate the context of the trailer in Brazil, focusing on the period in which imported trailers emerged and underwent mass-scale insertions in Brazil. Next, using the film material, case studies were prepared on the Brazilian trailers of the 1940s and the 1950s to identify rhetorical and aesthetic patterns in Brazilian advertisement production. This research hopes to contribute to a better understanding of the circulation (or the problems within the circulation) of Brazilian commercial productions of this period.
Os efeitos da exposição gradual à consequência e da oportunidade de escolha entre eventos de diferentes valores reforçadores sobre escolhas de autocontrole
(Universidade Federal de São Carlos, 2017-03-13)
Calixto, Fernanda Castanho
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Goyos, Antônio Celso de Noronha
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https://lattes.cnpq.br/3407008711535651
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https://lattes.cnpq.br/7438408946552610
The reasons why we make decisions have been focus of scientific interest and popular curiosity. The present research was conducted with the objective of investigating variables that influence self-controlled choices. Four studies were performed. The studies were carried out with eleven children aged 3 to 4. The experimental task consisted in the choice between two competing stimuli, presented in the monitor of a computer, followed by immediate consequences of smaller quantity and delayed ones of greater quantity. Study 1 aimed to train discriminations necessary for the choice between stimuli followed by consequences with different quantities and delays without verbal descriptions of the same. Participants were exposed to the following conditions: Simple Discrimination with Reversal, Training of Reinforcement Amount, and Reinforcement Delay. The results demonstrated that participants responded differently to concurrent stimuli in the first two experimental conditions. With the insertion of the delay, five participants finalized the study choosing the delayed consequence in percentage equal to or above 70% and three finalized choosing around 50%. Study 2 replicated Study 1 and further investigated the effect of equalizing the Interval between Attempts (EBT) on self-control choices. The results indicated that there were no substantial differences in the number of self-controlled choices between the conditions with and without EBT equalization. In Studies 3 and 4, potentially reinforcing events were manipulated along the delay of the consequence of greater quantity. Specifically, Study 3 was conducted with the objective of investigating the effect of the choice between preferred and non-preferred events on self-control choices. Participants were exposed to the following conditions: a) choice with high preference activities, b) choice with low preference activities, c) no choice with high preference activities, and d) no choice with low preference activities. The opportunity to choose was manipulated between conditions. The results indicated that self-controlled choices increased with preferred video conditions, regardless of the opportunity to choose between them. In Study 4 the opportunity of choice was manipulated intra-conditions and all videos available over the delay of consequence were of high reinforcement value. The results showed that the condition with opportunity to choose increased self-controlled choices.
Entre transgressões e consensos : a relação entre ética e estética no caso da telenovela “Lado a Lado” no âmbito do debate sobre ações afirmativas no ano de 2012
(Universidade Federal de São Carlos, 2017-03-13)
Lopes, Ana Carolina Siani
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Borges, Rosangela Ferreira de Carvalho
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https://lattes.cnpq.br/7682526446467209
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Miotello, Valdemir
;
https://lattes.cnpq.br/9131819326282708
This paper aimed to understand the potential relationships between the telenovela "Side by Side" (Rede Globo, 2012) and the clashes and discussions about Affirmative Actions that occurred in the Brazilian media in the year 2012, driven by the judgment of the Supreme Federal Court (STF) on the unconstitutionality of the system of racial quotas, applied by the University of Brasília (Unb) and the target of a lawsuit filed by the Democratic Party (DEM). In this way, the research sought to understand to what extent the novel and its discourse could be related and reverberating the voices of this debate, since it had as its narrative axis the post-abolition period of slavery and the conflicts about the insertion of the black population In the class society of the early twentieth century; period well remembered in the media debate to highlight the historical prejudice and the systematic marginalization of black people in Brazil. Thus, we start from the hypothesis that in both life and art discourses were produced about racism and the racial inequalities of Brazilian society. As a theoretical foundation for the constitution of such understanding, we anchor ourselves in the studies of the Circle of Mikhail Bakhtin (BAKHTIN, 2009; BAKHTIN, 2010; BAKHTIN, 2011; VOLOCHINOV, 2013; BAKHTIN, 2014), establishing a dialogue with The perspective of Cultural Studies on the media (MARTÍN-BARBERO, 1997; KELLNER, STAM, 2010; HALL, 2010; NEWCOMB, 2010), which gave us conditions to think mass communication in its dialogical character and as a terrain Confronted by both hegemonic values and dissenting values. In order to understand the statements produced in "Side by Side" (Rede Globo, 2012) in relation to the mediatic statements of the discussion on racial quotas in 2012, we have taken the text as a methodological path (BAKHTIN, 2011), in order to understand the statements produced in "Lado a Lado" (Rede Globo, 2012) in relation to the mediatic statements of the discussion on racial quotas in 2012, considering the responsiveness of the telenovela as a statement and considering it as a work of art that takes on meaning in its relation with the broader extra-verbal dimension (VOLOCHINOV, 2013). In this way, we seek the reconstitution of the ideological threads of the discourse on racial inclusion in the telenovela, in order to understand how these can constitute a consensus or transgression in relation to the conflicts of life.
Sonoridades vocais no cinema : a fala flutuante em “Familia Rodante” (2004), de Pablo Trapero
(Universidade Federal de São Carlos, 2017-03-13)
Taño, Debora Regina
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Miranda, Suzana Reck
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https://lattes.cnpq.br/8566012598222563
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https://lattes.cnpq.br/6643308942785377
This research studies voice usage as a sound element, beyond its semantic content, having the movie Rolling Family (2004), from Argentinian movie director Pablo Trapero, as the analysis object. In this movie, characters’ lines appear to not be connected to information generally interpreted as “relevant”, but instead fluctuating through subjects that could be understood as “peripherical”. This characteristic would reduce the primary sematic role of voice, opening space to its presence as sound. Understanding voice as another layer of a movie sound construction and as an important factor in character configuration and actions, we observe which are the possible potencies implied in it sonority. Furthermore, we observe significations which emerge from the interaction between voice and the other sound components and to which extents such polyphony is capable of articulating specific narrative layers. These diversifications in voice usage may be approached in line with its demands, taking us to several questions and different theoretical approaches from which the movie present us as possible usage modes of vocal sonorities.
Aproveitamento do copolímero ABS reciclado na moldagem de compósitos com fibras de juta e avaliação de propriedades
(Universidade Federal de São Carlos, 2017-03-13)
Hosokawa, Meire Noriko
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Paiva, Jane Maria Faulstich de
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https://lattes.cnpq.br/7926832511513537
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https://lattes.cnpq.br/6389207869131944
In a technology-driven society, the increase of electrical and electronic equipment consumption has been a matter of concern in relation to its management, since the expectation is that the quantity of electrical and electronic waste (WEEE) produced worldwide will reach 49.8 million tonnes by 2018. The reprocessing of WEEE is an alternative to reduce the environmental impact caused by improper disposal. In this work, composites using recycled ABS (acrylonitrile-butadiene-styrene) copolymer from WEEE were developed, reinforced with jute fiber fabrics. These materials were molded by compression molding in a hydraulic press in order to evaluate mechanical properties (flexural, tensile and impact strength), melt flow index, Thermogravimetric Analysis (TGA/DTG) and fracture analysis by Scanning Electronic Microscopy (SEM) after mechanical tests. It was observed in the thermal analysis that adding jute fiber fabric caused a decrease in the thermal stability of the composites in relation to the matrix. By mechanical properties, it was verified that, by adding jute fiber fabrics, an increase in flexural and tensile strength occurred up to 13% and 9%, respectively. In addition, it was observed in the impact test for notched specimens that no chances occurred in the maximum strength value about 100 J/m, which is a positive result, since recycled materials tend to present lower impact strength values. Fracture analyzes of the materials demonstrated that the incorporation of the jute fiber fabrics improved the molding process and compaction of recycled ABS. Thus, the incorporation of jute fiber fabric in recycled ABS demonstrated satisfactory results, enabling the substitution of synthetic materials in composites. In addition, recycling of ABS promotes the volume reduction of this type of discarded polymer and its reinsertion in productive chain, aiming, for example, new products such as panels, furniture, shoe soles and automotive components.
Simulação do comportamento de íons em solos altamente intemperizados utilizando o modelo de capacitância constante
(Universidade Federal de São Carlos, 2017-03-13)
Silva, Luiz Gabriel da
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Casagrande, José Carlos
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https://lattes.cnpq.br/7227235855217660
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Colato, Alexandre
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https://lattes.cnpq.br/5460973924624757
Agriculture is a very important economic activity in Brazil, and almost all cultures are grown directly on the soil. Thus, improve the knowledge of soil behavior is fundamental for the improvement of agricultural practices potentially harmful to the environment. The acric Oxisols are highly weathered soils, present in large and important productive productive regions of Brazil, and there are few studies using surface complexation models for description of ion adsorption processes in these soils. This work aimed at verifying the adequacy of the constant capacitance model in describing the adsorption of copper, cadmium, nickel and zinc in Latosols acric. This verification was done by analysing simulation residues and comparing surface potencial simuations with the values of PESN. All cations used are plant nutrients or important trace elements with respect to environmental contamination. In this work three soils were considered,Oxisol acric (LVwf), Oxisoil acric (LAw) and Eutric Kandiudalf (NVef). Measurements of their chemical (CEC, pH, Organic carbon, etc,), mineralogical (kaolinite and gibbsite) and physical (distribution of particle size and specific surface area) properties as well as adsorption, were obtained from literature. The adsorption envelope measurements collected in the literature were generally very consistent, and the cadmium and zinc measures are more behaved distribution in relation to other cations. Capacitance constant model were performed by a iterative computer program named FITQL. The constant capacitance model proved reasonably adequate to simulate the behavior of all the cations of the study. Simulations for nickel were relatively inconsistent regarding the experimental measurements. In most cases it was not possible to make appropriate distinctions between measurements and simulations for surface and depth, between the three concentrations of supporting electrolyte. All simulations of waste presented well-defined structure, unlike that normally expected. This may occur mainly due to methodological errors or errors inherent to the model, however, examples were not found in the literature regarding the waste generated by the simulation model for a proper comparison.
Modificação da molhabilidade da celulose por processos subsequentes de ablação e deposição a plasma
(Universidade Federal de São Carlos, 2017-03-14)
Camargo, Janine Sanches Gonzaga de
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Menezes, Aparecido Junior de
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https://lattes.cnpq.br/0484426340349483
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Silva, Adriana de Oliveira Delgado
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https://lattes.cnpq.br/2707979913713089
Cellulose is a biopolymer available in abundance in nature, which presents very interesting properties mainly for the textile, packaging and paper industry. However, due to its strongly hydrophilic character, resulting from the presence of a large number of free hydroxyl groups in its molecule, its use in certain areas becomes limited. In order to promote the modification of the wetting characteristic of the cellulose, and make it superhydrophobic, samples of this material were submitted to plasma processes performed in two steps: ablation and film deposition. Initially, the effect of variation of ablation time on the creation of adequate surface topography was studied. For this, the samples were exposed to the oxygen plasma at a pressure of 13 Pa and power of 150 W, varying the treatment time from 5 to 60 minutes. Then, the treated samples were submitted to the process called PECVD (Plasma Enhanced Chemical Vapor Deposition), in which a film was deposited on the surface from the precursor hexamethyldisiloxane (HMDSO) in the presence of argon, in a ratio of 70 e 30%, respectively. The deposition time was set to 30 minutes and the power applied was 150 W. In a second investigation, the effect of the thickness of the deposited film was studied. In this case, the cellulose samples were previously exposed to the oxygen ablation plasma for 60 minutes and then led to the PECVD process, with the deposition time varying from 5 to 30 minutes. In a third investigation, the duration of the ablation and deposition steps was reduced to 30 and 1 minute, respectively, in order to optimize the methodology. The samples were characterized by Scanning Electron Microscopy (SEM), Energy Dispersive Spectroscopy (EDS), Fourier Transform Infrared Spectroscopy (FTIR), profilometry, static contact angle measurements and hysteresis and sliding angle measurements. The results demonstrated that longer exposure times for the ablation step provide a significant modification in the material, through the creation of nanoscale structures on the surface of the fibers. The deposition step promoted the formation of films with organosilicon character on the cellulose surface, with thicknesses varying between 144 and 910 nm. The combination of the topography created after 30 minutes of ablation with the thin film resulting from the deposition step for 1 minute provided a surface with low receptivity for both polar (? = 150°) and nonpolar (? ~ 120°) liquids, whose wettability property remained stable with treatment aging time. The low values obtained for hysteresis (9°) and sliding angle (7°) confirm the creation of a superhydrophobic roll-off surface.
Diálogos entre moda e cultura : um olhar bakhtiniano para as narrativas do estilista Ronaldo Fraga
(Universidade Federal de São Carlos, 2017-03-14)
Dias, Nicole Cristine de Aquino
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Miotello, Valdemir
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https://lattes.cnpq.br/9131819326282708
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https://lattes.cnpq.br/9289507701075286
This research project seeks to provide a dialogic analysis of Ronaldo Fraga’s utterances, with special attention to the ones produced during two of his collections, O Turista Aprendiz, summer 2010/2011, and Turista Aprendiz na Terra do Grão Pará, summer 2012/2013. By doing this, the objective is to demonstrate how his words are permeated and constituted by other people’s words, for example the ones by Mario de Andrade.Consequently, Ronaldo Fraga’s utterances are biased and reflect the writer’s discourse, as the modernist and his ethnographic journey, presented in the book O Turista Aprendiz, are constant inspirations to the project of the designer, who has the Brazilian culture as the main point of his fashion production. By having the Bakhtinian theoretical and methodological premises as the framework of the project, we want to perceive how this otherness constitutes the designer’s ethical-aesthetic act and how his responsible act provides the change of considering fashion as also inserted in the cultural discussions, beyond the folkloric outfits. In order to achieve our objectives, we will compare texts, taking into account two specific fashion shows by Ronaldo Fraga in comparison to Mario de Andrade’s book O Turista Aprendiz. We will use in our analyses the concepts of dialogism, ideology, otherness and carnivalization. From this interaction, we will look for the meaning of culture.We also use as a basis the book Caderno de roupas, memórias e croquis, published by the designer. In this book, he gathered some elements of his creative process from some of his collections and parts of interviews and lectures. We intend to offer to this research area a dialogic reflection on the relationships between fashion and culture, amplifying the comprehension and the engagement of the linguistic studies from this perspective.
Síntese de membranas de alumina anódica porosa sobre substratos metálicos obtidos por evaporação térmica
(Universidade Federal de São Carlos, 2017-03-14)
Garcia, Uanderson Mezavila
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Trivinho-Strixino, Francisco
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https://lattes.cnpq.br/9740223649776400
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https://lattes.cnpq.br/6240710477686567
This work covers the investigation and synthesis of nanometric structures of Porous Anodic Alumina PAA, produced from low purity substrates, in aim to obtain selfsustained membranes. The Hard Anodization (HA) and Mild Anodization (MA) processes were used under special conditions through those found in literature. The analyses of results were based in comparing the AAP produced under the same conditions except the applied potential that was different depending on the MA or HA. HA process had its time halved in order to investigate the oxide growth rate and to calibrate the conditions of anodized membrane synthesis over the glass samples. This work also covers the construction of a resistive thermal evaporation PVD system capable of evaporating metals with melting points below 800°C. Through the deposition of successive layers it was possible to obtain metallic films of aluminum with thicknesses above 10 µm, enabling conditions of synthesis of porous anodic alumina on substrates produced by thermal resistive evaporation. The result of membrane synthesis on low purity aluminum substrates was complement to the synthesis of membranes obtained in aluminum evaporated in glass substrates, since the thickness of each deposited film is low if compared to the thickness of the AAP layer. Therefore, it was necessary to make several Al depositions on the same samples, to obtain an aluminum film that was able to support an oxide layer of anodic alumina and with the same characteristics of those obtained by the process of MA. All anodized samples were characterized by scanning electron microscopy, including samples made from metalized aluminum. The micrography obtained from the low purity aluminum membranes were treated by ImageJ software allowing the morphological analysis. AAP membranes obtained from technical Al substrate depicted the formation of branched pore channels, a result of instabilities in applied electric field during Anodization and presence of different alloying elements in the Al substrate. The metalized aluminum film had a larger thickness in the samples positioned in the middle of the sample holder possibly due to different temperature gradients of filament depending on the position of Al pellets.
Catalisadores com estrutura do tipo perovskitas PrCo1-xNixO3 para produção de gás de síntese
(Universidade Federal de São Carlos, 2017-03-14)
Dias, Eduarda Cristina Caixeta
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Assaf, José Mansur
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https://lattes.cnpq.br/9563312407691130
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https://lattes.cnpq.br/3291804329900857
Energy is an essential component for a country's development. Since Brazilians’ main energy source is the oil and it has limited reserves, an alternative is needed for a synthesis of fuels throughout other raw materials, such as natural gas, which is abundant in nature and rich in methane. Methane gas is the main precursor for synthesis gas formation, a mixture of CO and H2 that can generates various synthetic compounds such as gasoline, methanol, hydrocarbons and others. This gas mixed with carbon dioxide, which are the two main greenhouse gases, reacts in the presence of a catalyst forming the synthesis gas through the dry reforming. In this context, several studies are being carried out to find a high catalyst conversion, high selectivity for CO and H2, low cost, and mainly resistance to the carbon deposition; which is the main cause of deactivation in this type of catalyst. A family of elements that may contain containing responses to such problems is perovskite oxides showing as a general formula ABO3, which in latter A are the rare earths, alkaline earths or alkaline; and B are the transition metals. In this project they were synthesized with the type of perovskite PrCoO3 with the insertion of the nickel in the structure forming oxides of formula PrCo1-xNixO3. The samples of catalysts were characterized by X-ray diffraction, specific surface area (BET), temperature programed reduction (TPR), X-ray fluorescence (FRX), thermogravimetric analysis (ATG) and thermo differential analysis (DTA). Its catalytic activity was tested in the range of 500 to 800 °C, verifying the results of progressive conversion as the nickel content in the structure increases. The results showed conversions up to 72%, yielding 84,7% for CO and 38, 8% for hydrogen, therefore a ratio of H2 / CO ≈ 1:2. Stability analyzes indicated that the catalysts remained stable, without loss of activity in the time of 8 h. Also it was observed that cobalt assists in the inhibition of carbon formation, minimizing the deactivation.
O Banco Mundial, o neoliberalismo e a educação do campo no Brasil
(Universidade Federal de São Carlos, 2017-03-15)
Moretti, Monica Fernanda Botiglieri
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Bezerra Neto, Luiz
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https://lattes.cnpq.br/4809080593333472
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https://lattes.cnpq.br/5704541299775162
This study analyzes the participation of the World Bank in rural education projects in Brazil based on two hypotheses. Firstly, what means to a neoliberal political project justify poverty reduction and improve the living conditions of the individuals, and, secondly, in the Brazilian governments called "right" or "left", although they assume distinct political discourses, they have a lot of assumptions in common. In this way, fundamental concepts are understood and their results are fundamental for the debate that they propose to an understanding of the education elaborated for rural individuals. To do so, we use authors who discuss this theme, as well as the survey conducted with the World Bank, forming a base of research on financial projects for those who are interested in getting to know them. At the end of analytical forms we could perceive the neoliberal bias embedded in the speeches elaborated by the World Bank, as well as a trajectory of its action in the education of the Brazilian countryside. To the researchers of the area of fundamental importance for the comprehensiveness of the institution, its capillarity and influences, in this way, this study opened space for other researches in its continuity.
Estudo das propriedades físicas do composto NixPb1-xTiO3: compósito versus solução sólida
(Universidade Federal de São Carlos, 2017-03-15)
Costa, Renilton Correia da
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Pizani, Paulo Sérgio
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https://lattes.cnpq.br/1038437165007849
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https://lattes.cnpq.br/5638654222377956
In this work a physical properties study of the samples series NixPb1-xTiO3 will be presented using several experimental techniques, with emphasis on Raman spectroscopy and X-ray diffraction. For these samples, Raman scattering is a powerful characterization technique once the E (1TO), smallest wavenumber of PbTiO3, so-called "soft mode", is a very sensitive probe for small lowest structural local symmetry changes. The samples with x = 0.0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9 and 1.0 were synthesized by the solid state reaction method using oxides, PbO, NiO and TiO2, with 99% purity degree. The precursor oxides were milled in a high energy vibratory mill and thermal treated at temperatures ranging from 925 K to 1375 K. The atomic substitution for ions with a very different crystal radius is one of the convenient routes for the generation of composites on ATiO3-type materials. Another possible route is to use materials which the end compositions have different crystallographic structures. As materials in the form of a solid solution or composite may present different properties, their study becomes a relevant theme. Lead titanate, PbTiO3, is an important ferroelectric material which has tetragonal structure at room conditions and whose several physical properties such as structural, vibrational, thermal, dielectric, etc. are well known in the literature. On the other hand, nickel titanate, NiTiO3, has rhombohedral ilmenite structure at room conditions and is employed manly as a dry lubricant due to its high hardness or as a pigment. Moreover, it presents magnetic ordering, being hence a possible candidate to be used in new materials with magneto-electric properties. PbTiO3 and NiTiO3 are both ATiO3-type materials, so it can be expected that their combination may results in very interesting material for technological applications such as the reduction of the high loss and dielectric constant of PbTiO3, a request for devices working in the microwave frequencies.
Diálogos entre dois contos machadianos : leituras de “O segredo de Augusta” e “Uma senhora”
(Universidade Federal de São Carlos, 2017-03-15)
Camargo, Eduarda Rita Nicoletti
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Marques, Wilton José
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https://lattes.cnpq.br/5763590592946918
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https://lattes.cnpq.br/5721204970762741
This work aims to study two short stories by the writer Machado de Assis, taking in consideration their thematic approximation, leading one to believe that the second short story, "Uma senhora", from 1883, would be the rewrite of a previous short story, "O segredo de Augusta”, from 1868. In order to achieve this, the analysis take into consideration the leitmotiv of the vain woman and the figure of the narrator and in what way the narrator articulates the characters throughout the narrative. Thus, the author uses the theme of a previous short story, still marked by romantic characteristics and rewrite it, guaranteeing a formal improvement in the process of rewriting.
O Geogebra no ensino de Física: propostas de aplicação para o ensino do movimento Harmônico simples
(Universidade Federal de São Carlos, 2017-03-15)
Carmo, Rodrigo
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Soares, Antonio Augusto
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https://lattes.cnpq.br/8093480629202515
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https://lattes.cnpq.br/2291914455874755
In this work we discuss two important movements that are part of the curriculum of the physical discipline of physics in high school, wich are classified as part of a set of phenomena that constitute as an Simple Harmonic Motion (SHM). Namely, the pendulum movement and the projection of uniform circular motion on one of the cartesian axes. In both situations we have a SHM. We have developed dynamic simulations of these phenomena using GeoGebra software. This approach allows user’s, teacher and student, the establish a visual connection between geometry, algebra and the physical concepts present in the studied subjects, it allows interactions that go beyond the conventional simulators, such as having full access to the programming used, allowing user’s to control it at will. We also elaborated two routes of usage, one for each simulator. We applied the simulators in the environment a suggestion of didactic application of our simulators.
O curso de mestrado profissional em matemática em rede nacional à luz da teoria de Bourdieu: tensões entre matemática acadêmica e matemática escolar
(Universidade Federal de São Carlos, 2017-03-15)
Farias, José Vilani de
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Vilela, Denise Silva
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https://lattes.cnpq.br/3915260629619142
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https://lattes.cnpq.br/8155152145332951
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https://orcid.org/0000-0002-3411-3420
O objeto de análise deste artigo é o curso de Mestrado Profissional em Matemática em Rede Nacional, PROFMAT, especificamente quanto à sua matriz curricular nas três diferentes versões que se sucederam à sua implantação, em 2010, até o ano de 2012. Este estudo justifica-se pela dimensão e abrangência do referido curso. Os documentos de pesquisa, constituídos pelas versões da matriz curricular, serão analisados à luz da teoria sociológica de Bourdieu, da qual se destacam para esta análise os conceitos de habitus, capital e campo. Buscar-se-á delinear o campo da matemática no âmbito desse Programa a fim de entender o que Bourdieu chama de estratégias de reprodução das relações hierárquicas – nesse caso, entre a prática matemática dos matemáticos e a prática matemática dos professores no âmbito da escola –, assim como as estratégias de conservação e legitimação de um modo de fazer matemática. Nesse sentido, serão enfatizados aspectos que aproximam ou afastam o Programa do que preconizam as recentes pesquisas a respeito da formação docente.
Monitoramento metacognitivo em adultos analfabetos funcionais e absolutos
(Universidade Federal de São Carlos, 2017-03-15)
Fujie, Márcia Akemi
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Schelini, Patrícia Waltz
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https://lattes.cnpq.br/6185333517392859
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https://lattes.cnpq.br/3161677431639997
Self-regulation refers to thoughts, feelings and actions that are planned and cyclically adapted so as to make the individual reach their goals. Within the self-regulation is the metacognitive monitoring, the ability with which the individual follows and evaluates their own cognition. The present study was divided into two studies, both aimed to investigate the metacognitive monitoring of illiterate adults using the metacognitive judgement, a measure of the metacognitive monitoring, in cognitive tasks that evaluate the general factor of intelligence, processing speed and short-term memory. The relation between the real performance and the estimated performance was also investigated, including in which cognitive task the real performance related more to the estimated performance. In addition, we investigated which type of judgment model – the only difference between the two studies – was the most accurate. The participants of Study (1) included 34 functional or fully illiterate adults, from both genders, and age between 40 and 60 years old; and participants of Study (2) included 15 functional or fully illiterate adults, from both genders, and age between 20 and 74 years old. The instruments utilized were: Initial Interview, R-1 Test and subtests Digit Symbol-Coding, Symbol Search and Digit Span from the Wechsler Adult Intelligence Scale III (WAIS III), Judgment Register from 0 to 10, Judgement Register from 0 to 100 and Judgement Register with the use of a metric object. Results indicated that the real performance of the subjects, in both studies, were lower when compared to subjects with a greater level of education, and, according to the Pearson product-moment correlation coefficient, there was a significant correlation between the real performance and the estimated performance in the subtest Digit Symbol-Coding in Study 1, and significant correlation between real and estimated performance in the subtests Digit Symbol-Coding, Digit Span and Symbol Search in Study 2. In addition, results indicated that the judgment made with a metric object presented he most accurate measures.
O processo de constituição do livro Dois Irmãos : uma análise da paratopia criadora de Milton Hatoum
(Universidade Federal de São Carlos, 2017-03-15)
Pereira, Claudia Maria de Serrão
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Salgado, Luciana Salazar
;
https://lattes.cnpq.br/5206927424265495
;
https://lattes.cnpq.br/7136555331134427
A partir del enfoque derivado del Análisis del Discurso de línea francesa y del cuadro teórico-metodológico propuesto por Dominique Maingueneau en sus trabajos sobre la investigación del discurso literario, esta disertación analiza el proceso de constitución del libro Dos Hermanos, del autor Milton Hatoum, con el propósito de describir e interpretar los modos por los cuales la gestión de la figura del autor se inscribe en los procesos de circulación, distribución y recepción del producto literario. De acuerdo con nuestro andamiaje teórico, podemos afirmar que configurándose como un discurso constituyente, el literario preside a través de un régimen de funcionamiento que moviliza redes discursivas específicas que determinan valores atribuidos a las diferentes obras. Consecuentemente, podemos entender tales procesos discursivos a partir del concepto de paratopia creadora, que señala a la comprensión por la cual el valor de un libro no emerge de una contingencia, sino ante la comunidad en que circula. La selección del libro Dos Hermanos no se ha dado únicamente porque la obra es considerada una de las más significativas de la producción literaria brasileña contemporánea, también por una serie de indicios que la convierten en un objeto provechoso para la investigación: i. se trata del libro más vendido de Milton Hatoum, autor cuya identidad autoral se señala como representativa en los llamados estudios regionalistas; ii. la obra ha sido adaptada al medio audiovisual a través de la creación de una “miniserie”, cuyo estreno se ha producido durante la ejecución de este trabajo; iii. hay un número considerable de críticas y reseñas con respecto de su producción así como entrevistas con el propio autor; iv. el autor es reconocido por narrar de modo incisivo el acontecer de la ciudad de Manaus, un factor constantemente retomado en la constitución de los imaginarios acerca de su trabajo. Con esos indicios, avanzamos un análisis de los modos por los cuales el autor opera las regularidades y los valores conjugados tanto a las textualidades de su obra cuanto a la propia figura de autor.
Mediação editorial na comunicação científica : um estudo de dois periódicos de humanidades
(Universidade Federal de São Carlos, 2017-03-15)
Clares, Letícia Moreira
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Salgado, Luciana Salazar
;
https://lattes.cnpq.br/5206927424265495
;
https://lattes.cnpq.br/5937201924820709
En este trabajo, proponemos un estudio de la mediación editorial en la comunicación científica, buscando investigar cómo funcionan los procesos de tratamiento editorial de textos en dos publicaciones científicas del área de humanidades (una categoría puesta en cuestión) y cuáles son sus efectos en la comunicación del conocimiento científico. Son consideradas como objetos de análisis las revistas del Instituto de Estudios Brasileños – IEB-USP, Rieb, y del Programa de Postgrado en Geografía de la FFLCH-USP, Geousp: espaço e tempo, además de un conjunto de materiales que circularon bajo la rúbrica edición científica en cursos, eventos y ofertas de servicios editoriales en ambientes especializados, buscando comprender de qué manera los ritos genéticos editoriales dan indicios de la constitución de la comunicación científica como una institución discursiva y, de este modo, en qué medida las condiciones de producción de las publicaciones producen, entre otras cosas, la extinción del hecho de que hay distintas comunidades discursivas. Basado en el método descriptivo-interpretativo característico del análisis del discurso de línea francesa y a la luz de las propuestas teórico-metodológicas de Dominique Maingueneau, movilizamos la noción de escenas de enunciación, objetivando describir un panorama de los elementos coyunturales del universo discursivo editorial de la comunicación científica e investigar cómo, en ese contexto, funcionan las publicaciones. Así que observamos cómo los ritos genéticos editoriales se operan en estos materiales y se relacionan a la constitución del escenario actual de la comunicación científica, dadas las formas como las distintas prácticas de textualización de los atores involucrados en los procesos editoriales evidencian consensos y resistencias en los procesos de producción, circulación y consumo de conocimiento.
Adaptação para pré-escolares de subtestes da bateria multidimensional de inteligência infantil
(Universidade Federal de São Carlos, 2017-03-15)
Manfrin, Estela
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Schelini, Patrícia Waltz
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https://lattes.cnpq.br/6185333517392859
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https://lattes.cnpq.br/0224996068682310
The adaptation or elaboration of tests that can validly and accurately evaluate the intellectual abilities of Brazilian preschool children is relevant, considering, among other factors, the lack of instruments. The Cattell-Horn-Carroll Model (CHC) is regarded as the one that most tends to give rise to techniques of intellectual evaluation and consists of a multidimensional vision that conceives the intelligence through capacities or general factors. The Multidimensional Battery of Children Intelligence (BMI), based on such a model, is intended for the evaluation of children between 7 and 12 years. The general objective of the present study was to adapt for preschoolers and to analyze the evidence of validity and accuracy of the sub-tests General Vocabulary, Memory for Names, Speed of Perception and Response Speed of BMI. The first stage of the study consisted of the adaptation of the General Vocabulary, to be used in children between 4 years and 6 years and 11 months. Participants included 10 mothers and 10 female teachers who answered a questionnaire and the original BMI items. 227 different words of children's knowledge were raised and 86 which they were not yet able to understand, according to parents and teachers. Through the relative frequency of the words, the selection was made to compose the new items of the subtest. Thus, from the study with parents and teachers, the 1st version of the General Vocabulary subtest for preschoolers was prepared, consisting of the 35 original BMI and 18 new items. The second step consisted in sending the four subtests to five expert judges to investigate the evidences of content validity through the analysis of agreement between them. The first version of the General Vocabulary sub-test for preschoolers was sent to the judges, as well as three other original BMI subtests: Memory for Names, Speed of Perception, and Speed of Response. After the judges' analysis, the General Vocabulary subtest had 6 excluded items and 5 reformulated items. The Memory for Names only had change in one item and the other subtests did not change in their items, only in the instructions. The third step consisted of a pilot study with 10 children, so that changes in instructions and two subtests were found. Eight items of the General Vocabulary were excluded, giving rise to the 3rd version of the General Vocabulary with a total of 38 items; In Velocity of Perception the numbers were replaced by figures, giving rise to the 1st version of this subtest for preschoolers. Finally, the fourth step was the application in a sample of 43 preschoolers for the analysis of validity evidences based on relations with external variables and precision. All subtests had statistically significant results in relation to the "age" variable. As for accuracy, the 3rd version of the General Vocabulary had alpha of 0.81 and the 1st version in the Memory for Names of 0.42. In the Rapid Response and in the 1st version of the Processing Speed it was not possible to calculate the accuracy. In this way, we conclude that the adaptation to preschoolers of BMI subtests presented evidence of validity based on the variable "age" and the 3rd version of the General Vocabulary was accurate. It is necessary to carry out studies with a larger sample, in order to continue the validity and precision surveys