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Estudo das propriedades estruturais, ópticas e fotoluminescentes do Sistema α-(Ag2-3x-yTRxLiy)WO4 (TR = Pr, Sm, Eu, Tb, Dy e Tm)
(Universidade Federal de São Carlos, 2018-08-17)
Pinatti, Ivo Mateus
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Longo, Elson
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https://lattes.cnpq.br/9848311210578810
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Rosa, Ieda Lúcia Viana Rosa
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https://lattes.cnpq.br/8086262254116449
Luminescent materials of different colors emission are of great interest for development of new or more efficient optical devices. Although many materials have been reported using different approaches, green synthesis and nanosized phosphors of high color rendering is still very limited. Tungstate matrix can be considered as ideal host lattice for dopants as they possess high thermal, chemical and physical stability. In addition, silver compounds can be an excellent material for biomedical application due to its low toxicity and bacteriostatic properties, which in turn can be used in the health area. This thesis aims to investigate the structural, optical and photoluminescent properties of the system α-(Ag2-3x-yRExLiy)WO4 (RE = Pr, Sm, Eu, Tb, Dy e Tm) prepared by the coprecipitation methodology. This experimental procedure was fast, simple, and efficient to prepare these inorganic materials. The samples were investigated by X-ray diffraction with Rietveld refinement analysis, Raman and Ultraviolet-visible spectroscopy, and Photoluminescence measurements. The morphology was analyzed by Field-Emission Scanning Electron Microscopy and Transmission Electron Microscopy. X-ray Photoelectron Spectroscopy was performed to verify the superficial composition and details. The phase of the nanocrystals was confirmed and the structural and optical properties were dependent of the Rare Earth and Lithium ions. The nanomaterials presented excellent photoluminescent behavior due to the combined matrix and Rare Earth luminescence as well as temperature and co-doping dependence. The nanorod morphology reinforces the preferred alignment, dense packing and directional emission characteristics. Inspired by the above considerations, these new materials may present new applications and superior characteristics for luminescent compounds as well as for biological purpose.
Catalisadores Pt/Al2O3 e CeO2/Pt/Al2O3 aplicados à reação deslocamento gás-água: efeito da composição nas propriedades estruturais e catalíticas
(Universidade Federal de São Carlos, 2018-08-17)
Borges, Laís Reis
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Bueno, José Maria Corrêa
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https://lattes.cnpq.br/0157452280626031
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https://lattes.cnpq.br/9219091363286049
Alumina-supported platinum catalysts were synthesized via conventional impregnation varying the metal contents (0.3 to 2% Pt; 6 to 20% Ce, m / m) and the Pt precursors (H2PtCl6 and [Pt(NH3)4] (NO3)2), were evaluated for the structure-activity relationship in the water gas shift reaction (WGS). The results of the X-ray absorption spectroscopy analysis for the Pt/Al2O3 catalysts indicated different average sizes of metal platinum nanoparticles supported on alumina (0.7 and 1.4nm) as a function of the metal precursor, and an increase in the oxygen under the surface and/or under the metal-support interface with decreasing platinum/nanoparticle size. However, the inside and surface electron density has not been modified as indicated by the same Pt-Pt (2.75Å) and Pt-O (2.00Å) bond distances for all of the catalysts. Theoretical mechanical-quantum calculations indicated an insensitivity of the bond distances in clusters of Pt greater than 13 atoms with the addition of oxygen under the surface, suggesting that the synthesized samples are larger than this one, corroborating with the analysis of transmission electron microscopy. Infrared spectroscopy with CO adsorption (FTIR-CO) showed a distribution of metallic and slightly oxidized platinum species under the surface, and an increase of Pt0 sites of low coordination with the platinum content due to a lower coverage of the oxygen. These sites of low coordination presented a greater thermal stability of CO. As for the activity in the WGS reaction of the Pt/Al2O3 catalysts, the reaction frequency (TOF) decreased (0.5 to 0.2 s-1) with increasing platinum content (0.3 to 2% Pt), suggesting that fractions of the active sites under the samples with high platinum content, calculated by FTIR-CO, do not participate in the reaction due to the strong adsorption of CO. The addition of ceria on the Pt/Al2O3 catalysts decreased the number of Pt-Pt coordination and increased Pt-O, indicating a greater stabilization of the nanoparticles (average size ≤ 1nm) and a strong interaction of the Pt particles with CeOx species. However, in spite of the structural changes, there was no change in the surface electronic density of the Pt nanoparticles. The increase in the activity (TOF) of up to 10 times with the cerium content in relation to the non-promoted catalysts suggested that the activity was controlled by sites of Pt-O-Ce interface, which modified the reaction path. The presence of Cl under the promoted samples affected the redox properties of ceria, making it difficult to transfer oxygen and thus to increase the activity. Therefore, it can be affirmed that the structural properties allowed to identify the active sites that determine the catalytic performance in the WGS reaction.
Envolvimento da neurotransmissão nitrérgica no hipocampo dorsal no controle da função cardiovascular e das respostas autônomas e comportamentais ao estresse social crônico
(Universidade Federal de São Carlos, 2018-08-17)
Almeida, Jeferson de
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Crestani, Carlos Cesar
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https://lattes.cnpq.br/1117432571971568
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https://lattes.cnpq.br/8141647386370567
The hippocampus is part of the limbic system, and is directly involved in cognitive processes, anxiety-related defensive behaviors, stress responses, and the neurobiology of depression. Some studies have also reported a role of the hippocampus in the control of cardiovascular function. However, the neurochemical mechanisms involved in the control of behavioral responses and cardiovascular function within the hippocampus are still poorly understood. Nitric oxide (NO) is synthesized from L-arginine by three isoforms of the enzyme nitric oxide synthase (NOS), which are called neuronal (nNOS), endothelial (eNOS) and inducible (iNOS). Thus, one of the hypotheses investigated in the present study was that alterations in the formation of NO from nNOS into the dorsal hippocampus are involved in the cardiovascular and behavioral changes induced by social isolation. A second hypothesis investigated in the present study was that both nNOS, iNOS and eNOS in the dorsal hippocampus are involved in the control of cardiac responses of the baroreflex. We identified that social isolation increased depressive- and anxiety-like behaviors, and the treatment of the dorsal hippocampus with NPLA (selective nNOS inhibitor) or carboxy-PTIO (NO scavenger) reversed the behavioral effect of depressive type. Social isolation did not alter the blood pressure and heart rate increase and the drop in tail skin temperature evoked by restraint stress. However, treatment of the dorsal hippocampus with NPLA increased restraint-evoked pressor and tachycardic responses and decreased tail temperature in isolated, but not control, animals. Social isolation increased levels of nitrotyrosine in the dorsal hippocampus, and a trend of increased nNOS levels was identified. Regarding the cardiac responses of the baroreflex, we observed that treatment of the dorsal hippocampus with carboxy-PTIO decreased the tachycardia to drop in blood pressure. Microinjection of NPLA increased bradycardia to increase in blood pressure, whereas 1400W (selective iNOS inhibitor) decreased reflex tachycardia and increased reflex bradycardia. In addition, administration of L-NAME (non-selective NOS inhibitor) in animals co-treated with NPLA + 1400W (to inhibit nNOS and iNOS) decreased reflex bradycardia. Based on these results, we conclude that nitrergic neurotransmission in the dorsal hippocampus modulates cardiac responses of the baroreflex, and this control is specific to nNOS, iNOS and eNOS. In addition, social isolation increases the release of NO in the dorsal hippocampus, possibly by increasing nNOS expression, and this effect is related to the anxiogenic- and depressive-like behavioral responses evoked by social isolation. Furthermore, this increase in the local formation of NO from nNOS plays an inhibitory role in the increase of arterial pressure and heart rate, in addition to facilitating the sympathetic-mediated vasoconstriction during restraint stress.
Sobre a influência de fosfinas e do ligante isocianida de p-Toluenosulfonilmetila na citotoxicidade de compostos de Ru(II)
(Universidade Federal de São Carlos, 2018-08-17)
Silveira, Rafael Gomes da
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Batista, Alzir Azevedo
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https://lattes.cnpq.br/6469642481998660
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Moreira, Wania da Conceição
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https://lattes.cnpq.br/3016270106775634
The main objective of the present work was to obtain new Ru(II) complexes with lingans diimino, phosphinic and isocyanide p-toluenesulfonylmethyl, to characterize them by diverse physical and spectroscopic techniques, to study the interaction with biomolecules DNA and human serum albumin (HSA), besides to evaluated their cytotoxic properties. In this way, we reported the synthesis of fourteen new complexes and the characterization by elemental analysis, cyclic voltammetry, molar conductance, ultraviolet (UV-vis) spectroscopy, infrared spectroscopy (FT-IR), nuclear magnetic resonance (31P{1H}, 1H, 13C {1H}, DEPT-135, COSY, HMBC and HSQC) and Single crystal X-ray diffraction, when possible to obtain single crystal. For the complexes containing only diimine and phosphinic ligands, there were important electronic and steric effects caused by -stacking interactions. Such effect lead to a differentiated behavior in the hydrogens of the phosphinic phenyl groups in the NMR experiments, it was also possible to observe the same effect by crystallography of X-rays and by DFT calculations. Studies of interaction of complexes with DNA by viscosity measurements indicate that the compounds interact poorly with this biomolecule. Two compounds with diiminic phosphinic linker and the p-toluenesulfonylmethyl isocyanate ligand were selected for interaction studies with gel electrophoresis DNA and competitive assay with Hoescht 33258, where the results indicates that compounds interacting electrostatically and/or by the minor groove of the DNA. The HSA interaction studies, carried out by fluorimetric titrations, show that both compounds present interaction constants (Kb) on the order of 104-106, indicating moderate to strong interaction with this protein. For all cases, the interaction mechanism is static. Cytotoxicity data in human tumor cell lines A549 (lung) and DU-157 (prostate) and non-tumor MCR-5 (lung), show that the compounds bearing the p-toluenesulfonylmethyl isocyanide ligand are the most promising, showing up to 140 times more active than the reference drug and up to 3 times more selective.
Concepções de professores sobre avaliação: estudo de caso de ensino de língua espanhola no CEL de São Carlos
(Universidade Federal de São Carlos, 2018-08-17)
Silveira, Milena Ribeiro
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Gregolin, Isadora Valencise
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https://lattes.cnpq.br/1015869228676997
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https://lattes.cnpq.br/7187845905795944
The main goal of this survey is to evaluate the concepts of spanish language teachers evaluation from Study Language Center from São Carlos SP and to compare with proposals described in National Curricular Plans (NCP Brazil, 1998 and 2000) and National Curricular Orientations (OCE Brazil, 1998) and try to discuss possible trends in their didactic practice evaluations described in our survey context. By the way, we use as data collection tool an interview with CEL coordinator with the aim of understanding the principle of the pedagogical project of CEL and a questionnaire to Spanish teachers with the main of chart the conceptions and practices evaluated from the group. From the analysis, we try to discuss what are the conceptions about concepts of express evaluation by teachers to base their practices and how these conceptions relate to the guidelines and national curricular orientation. Our theoretical foundation is based on authors who discuss evaluation in the general field of education in the general field of education (LIBÂNEO, 1991, PERRENOUD, 1999; SACRISTÁN, 2000, HOFFMAN, 2002; LUCKESI, 2011) and in the field of applied linguistics (SCARAMUCCI, 2004, LEFFA, 1998, VIEIRA-ABRAÃO, 2012). Keyword: Evaluate, Study Language Center, Spanish Language.
Sustentabilidade nos projetos de curso de formação de professores: um estudo das licenciaturas da UFSCar Sorocaba
(Universidade Federal de São Carlos, 2018-08-17)
Carvalho, Laura Leite de
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Fortunato, Ivan
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https://lattes.cnpq.br/8293044394759438
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Melo, Ismail Barra Nova de
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https://lattes.cnpq.br/3576937472687059
Since it began activities in 2006, the UFSCar Sorocaba campus has assumed the concept of sustainability as the guiding principle of its development. This position was inserted in the Institutional Development Plan (PDI), a document that guides the functioning of the university. From the PDI, it was verified that the principles of sustainability, from Environmental Education, must be present not only in the physical aspects of the campus, but also in the professional formation of the students, in which each course must work with these principles of some way. In this way, knowing that the courses have a Pedagogical Political Project (PPP), which contains their contents and principles, it was necessary to analyze them to verify if the recommendations of the PDI, regarding Environmental Education, were met. Therefore, the objective of this research is to analyze the approach of Environmental Education and the presence of the principles of sustainability in the PDI and PPP. In this work, the seven undergraduate courses at UFSCar Sorocaba were analyzed, with the purpose of verifying how the initial formation of campus teachers should deal with issues related to sustainability. The methodology used was documentary research of the eight documents: PDI and PPP of the seven undergraduate courses. The results pointed out that although the PDI presents the principles of Sustainability as guiding the campus, does not deepen these contents and does not present proposals for their implementation. In addition, of the seven undergraduate courses, only three refer to differentiated course formation, focused on sustainability and offer a specific discipline, the other four courses refer to this proposal in a very superficial way and do not offer specific discipline for environmental studies. Thus, it can be seen that the focus for sustainability in all areas of the campus, including vocational training, according to the PDI, is not addressed in the pedagogical projects of all courses, and in some, it is spoken in a shallow way, not making clear, from the analysis of these documents, if UFSCar Sorocaba is fully aligned with the principles of sustainability in the training of its students.
Espanhol para alunos brasileiros: estratégias de aprendizagem sugeridas pelas orientações ao professor do livro didático Cercanía Joven
(Universidade Federal de São Carlos, 2018-08-17)
Nordi, Cristiane
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Gregolin, Isadora Valencise
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https://lattes.cnpq.br/1015869228676997
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https://lattes.cnpq.br/9031749271012154
The general objective of this research was to identify bridges in the guidelines contained in the handbook and in the textbook teacher that analyzed the mother tongue (Portuguese) and the foreign language (Spanish), classify the types of strategies proposed and discuss the indicators which characterize a specific approach to working with languages close to Basic Education. When we take the guidelines to the teacher as an object of analysis, we seek to understand how the Spanish language teaching is characterized or proposed to Brazilian Basic Education students today, starting from the hypothesis that there is some specificity in relation to the other materials existing in the market because it is a textbook approved by the PNLD of 2015 and therefore "comply" with the "official requirements" of what is considered appropriate at the moment, in terms of methodological guidelines. Therefore, we assume that the didactic textbook, the object of our research, because it was written for the Brazilian context of Basic Education, should offer guidance to the teacher (both in the section called the Teacher's Handbook and along the teacher's copy ) that relate the Portuguese language and the Spanish language. More specifically, we seek to identify which learning strategies (OXFORD, 1990; O'MALLEY and CHAMOT, 1990; WENDEN, 1991) that relate Portuguese and Spanish are proposed by orientations to the teacher and to analyze if they characterize a specific approach to Education Basic, based on previous discussions in the relevant literature. In order to do so, we proceed to a qualitative study of the case, which starts with a bibliographical review on the themes of teaching Spanish to Brazilian and nearby languages (ALMEIDA FILHO, 2001, 2002, 2004, 2007, 2012, 2013; GONZÁLEZ 1989, 2008; DURÃO, 1999, 2002, 2004; ERES FERNÁNDEZ, 2001, 2003, 2004, 2017; FANJUL, 2012, 2014, SERRANI-INFANTE, 1998, 2005; CELADA, 2002, ORTIZ ALVAREZ, 2002,2007). As a result, our research has identified that teacher orientation generally emphasizes the use of knowledge-based learning strategies that students already have in their own mother tongue and, less prominently, in the other foreign language taught at school (English) and the Plural Approaches (CUMMINS, 1979, 1983, DOLZ, GAGNON and MOSQUERA, 2009, SIMARD, 1997, CANDELIER, 2007, DEGACHE, 2006, CAROLA and ALBUQUERQUE COSTA, 2014). Among the strategies proposed, the guidelines emphasize the use of cognitive and social strategies, but the compensatory strategy, which helps the student to overcome learning gaps and which is pointed out by the PCNEMs (1999) as the most important to be taught, can be in several of the guidelines throughout the Teacher's Manual.
Uma abordagem baseada em redes neurais artificiais e clusterização para previsão de curto prazo da demanda de energia elétrica
(Universidade Federal de São Carlos, 2018-08-18)
Scremin, Eric Reinoldo
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Fernandes, Ricardo Augusto Souza
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https://lattes.cnpq.br/0880243208789454
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https://lattes.cnpq.br/3192696689626429
Electricity plays a crucial role in the development of a country because it directly influences many sectors of the society. In this sense, the demand forecasting is of paramount importance for the maintenance and growth of the electric power systems. Currently, there are different approaches used for such forecasting. In addition, there are many variables that can influence the performance of this process. Among these variables, one can highlight those derived from the climate. Therefore, this work proposes the application of an Artificial Neural Network of Multilayer Perceptron type with Levenberg-Marquardt training algorithm, using temperature and demand as input variables. Moreover, another objective of this work is to investigate the relationship between variables, making use of the k-means clustering method on the input data. The results show that this clustering-based approach obtains predictions with low error rates. However, slightly better results were obtained when the data were not clusterized
Abordagem de martingais para análise assintótica do passeio aleatório do elefante
(Universidade Federal de São Carlos, 2018-08-20)
Miranda Neto, Milton
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Gava, Renato Jacob
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https://lattes.cnpq.br/0494315910583969
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https://lattes.cnpq.br/2915296953908754
In this work we study the elephant random walk introduced in (SCHUTZ; TRIMPER, 2004), a discrete time, non-Markovian stochastic process with unlimited range memory that presents phase transition. Our objective is to proof the almost sure convergence for the subcritical and critical regimes of the model. We also present a demonstration of the Central Limit Theorem for both regimes. For the supercritical regime we proof the convergence of the elephant random walk to a non-normal random variable based on the articles (BAUR; BERTOIN, 2016), (BERCU, 2018) and (COLETTI; GAVA; SCHUTZ, 2017b).
Fisiologia de Chlorella sorokiniana e Ankistrodesmus densus: efeitos e dinâmica de nanopartículas de cobre
(Universidade Federal de São Carlos, 2018-08-20)
Barreto, Daniela Mariano
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Tonietto, Alessandra Emanuele
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https://lattes.cnpq.br/3056194008699912
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Lombardi, Ana Teresa
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https://lattes.cnpq.br/6737850858443813
The phytoplankton community is composed of microalgae that support food chains in aquatic ecosystems. In these environments they are immersed in a complex matrix of organic and inorganic substances. In some situations, they are still subject to a range of anthropogenic wastes that end up entering aquatic environments, such as nanoparticles (NPs). Due to the unique characteristics of NPs, their use is intense, even if neither use nor disposal is regularized by competent governamental agencies. Toxicological studies on the effect of NPs on phytoplankton have controversial results. The toxicity of NPs is related to their reactivity, which depends on the size of the particles, formation of aggregates, availability of organic matter, among other factors. In this study, we first sought to understand the dynamics of NPs in algal cultures and followed investigating on the physiological effects of copper NPs (NPs-Cu) on two freshwater Chlorophyta (Chlorella sorokiniana and Ankistrodesmus densus) exposed to nominal NPs-Cu concentrations estimated for the environment (0.57 to 12.70 μg L-1) and above these (up to 635.0 μg L-1). We analyzed parameters related to growth, photosynthesis and intracellular biomolecules under controlled laboratory conditions at 72 h cultures. The results showed that the population growth rate was affected in both microalgae species. The intensity of the photosynthetic processes varied according to the microalgae, with C. sorokiniana being more resistant than A. densus that presented reductions in photosystem II quantum yield, electron transport rates and consequentely in the estimated gross primary productivity. The biochemical composition (proteins, carbohydrates and lipids) was affected in the presence of NPs-Cu in both microalgae, but at environmentally relevant concentrations of NPs-Cu only carbohydrates were affected. Protein synthesis was stimulated at the higher end of the NPs-Cu concentration range, suggesting the production of antioxidant proteins associated with cell detoxification. This study is a contribution to the knowledge of the toxicology of NPs to freshwater microalgae and their possible consequence in natural environment.
Impactos econômicos globais da redução das emissões de gases de efeito estufa
(Universidade Federal de São Carlos, 2018-08-20)
Silvestrini, Murilo Mazzotti
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Gomes, Alexandre Lopes
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https://lattes.cnpq.br/5002157193962189
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https://lattes.cnpq.br/8183879774699219
The purpose of this work is to simulate reductions in global greenhouse gas emissions (GHG) to analyze the behavior of emissions and gross production value (GVP) of 40 countries considering the global emission mitigation target, identifying those that present greater economic impact. The methodology of this work is based on the use of Linear Programming and Input-Output in the Multi Regional matrix with GHG emissions, and the data used are from the WIOD tables which represents 40 countries composed by 35 sectors for the year 2009. Three different scenarios were modeled: the pessimistic scenario, the moderate scenario and the optimistic scenario, with reduction of 10%, 30% and 50% of the global GHG emissions, respectively. The results showed the greatest emission reductions in China, India, Russia and Brazil, which also showed the greatest decrease in VBP. The United States and Japan, despite of presenting a high percentage of emission reductions, especially in the optimistic scenario, had a lower economic impact due to their economic structure. European countries, such as Germany, the United Kingdom and France, showed little reduction in emissions and VBP. Furthermore, the scenarios modified the overall composition of emissions and VBP, with the share of GHG emissions increasing in European countries, in addition to the increase of their participation in global VBP. The conclusion is that the reduction of emissions in the face of a global GHG mitigation goal is greater in the most emission-intensive countries, causing the greatest economic impact, mainly due to the production structure of the economic sectors based on higher emission technologies.
Otimização superestrutural de biorrefinaria de cana-de-açúcar com hidrólise e gaseificação da biomassa vegetal e biodigestão da vinhaça e do licor de pentoses
(Universidade Federal de São Carlos, 2018-08-20)
Fonseca, Gabriel de Castro
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Costa, Caliane Bastos Borba
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https://lattes.cnpq.br/1602653870311562
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Cruz, Antonio José Gonçalves da
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https://lattes.cnpq.br/1812806190521028
The production of ethanol in sugarcane biorefineries generates large amounts of by-products such as straw, bagasse and vinasse. The objective of this work was to develop and implement a tool for the analysis of investments within the framework of a sugarcane ethanol bio-refinery (E1G) designed to take advantage of all these by-products in the production of second generation ethanol (E2G) and electricity. The combustion of bagasse in low pressure boilers for energy self-sufficiency of the process is a widely used technology. Not all distilleries, however, adopt the technology to produce surplus electricity. Two alternatives for the production of these surpluses were examined: the combustion of straw and bagasse in high pressure boilers (Rankine cycle) and biomass integrated gasification combined cycle (BIGCC). The impact of biogas production by anaerobic digestion of vinasse on the techno-economical viability of the process was also investigated, since the production of second generation ethanol leads to vinasse throughputs even larger than those observed in traditional distilleries. An autonomous distillery with capacity to process 3.84 million tons of cane per harvest and recovery of 50 % of straw from the field was considered. The economic analysis was based on factored-cost estimates and on superstructural optimization in order to define the optimal fraction of hydrolyzed bagasse and the best process for energy production. The uncertainty regarding the economic analysis was estimated by the Monte Carlo method. Different case studies were evaluated assuming changes in product prices, reduction in investment costs due to technological learning effects and expectations for the long-term scenario. In most scenarios the optimal operation involved the generation of electricity by combustion of biomass in high pressure turbines and in all scenarios, the optimum involved the hydrolysis of all bagasse and the production of biogas. Nonetheless, under the conditions evaluated in this work, none of the scenarios evaluated were deemed economically feasible, suggesting that these technologies are not yet sufficiently mature for commercial use without support from the public sector.
Desafios contemporâneos da Ciência da Informação: influenciadores digitais como objetos de investigação
(Universidade Federal de São Carlos, 2018-08-20)
Dantas, Melina Simardel
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Gracioso, Luciana de Souza
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https://lattes.cnpq.br/4898201916360294
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https://lattes.cnpq.br/7343134610824006
Constantly, new informational practices have been strengthened by virtual and collaborative information and communication technologies in contemporary times. In this context, the (informational and communicational) practices used by digital influencers consist of a new information action, which, according to this work, have been poorly explored in the scientific perspective of Information Science (IS). In this scenario, the general objective of this research was to bring the IS closer to the new actions of production and consumption of information on the web promoted by digital influencers, analyzing how studies of these new informational practices and informational individual would fit the scope of Information Science. Based on bibliographical research and literature review, studies were carried out both to contextualize and characterize IS, information as its object of study and contemporary users of information, as well as to understand the current informational individuals and current information and communication practices, to produce relations between Information Science and digital influencers. It was noticed that IS, in its evolution as a scientific area, has become a science capable of investigating a wide range of contents, not being restricted to the technical and theoretical aspects related to information, being also in the field research related to the aspects applied and social information uses and users. The objective was to understand, describe and contextualize the digital influence and digital influencers in IS, suggesting approximations of the topic in the range of the Working Groups (WGs) of the National Meeting of Research in Information Science (ENANCIB), indicating possible tendencies for studies about digital influencers in Information Science.
Diagnóstico da Rede Sociotécnica de Inovação em uma Instituição Federal de Ensino Superior
(Universidade Federal de São Carlos, 2018-08-21)
Silva, Daniela Salgado Gonçalves da
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Gracioso, Luciana de Souza
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https://lattes.cnpq.br/4898201916360294
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https://lattes.cnpq.br/2401064231048780
Innovative activity is considered a social and collective process, in which its learning takes place through interactions. The more complex the learning, the greater the need for interaction and complementarity. Therefore, there is an open interaction environment that depends on the communities and networks of innovation that should create value and bring collective benefits. In this sense, the present research aims to diagnose the articulation existing in the strategic sectors formed by a sociotechnical network linked to the management of innovation in a São Paulos’s state Federal University and, to identify with the sector representatives, which strategies could be implemented to increase the effectiveness of the processes managed by this network. It is a qualitative-quantitative research whose strategy is the case study by means of the inductive method, where an empirical investigation was carried out that contemplated evaluating a contemporary phenomenon within its real context. As a time cut for data collection, we have the period between the second half of 2016 and the first half of 2018, with a view to identifying which are the institutional networks, how they flow from the perception of the sector representatives, and what results can we from the perceptions identified in the interviewees' statements. As for the use of results, this is an applied research whose practical emphasis is on problem solving. As for the ends, it is a descriptive research. As for the nature of the method, it is a qualitative-quantitative research. The case unit is a governmental organization, part of the apparatus of the State, from the public management, non-profitable character with type of academic organization: University. The current reality of the structure linked to the management of innovation of this institution is seen in this research as the central problem. This work aimed to describe, analyze and identify the degree of sector interaction and level of articulation of this sociotechnical network of research and innovation management based on the following question: "Considering the social responsibility of a federal university in the interior of the state of São Paulo, to what extent does the political and administrative articulation of the sociotechnical network for innovation management occur, since there is a potential possibility of sectoral integration that has a positive impact on institutional management?" This research is justified by the importance of the Scientific, Technological and Innovation Institutions (STII), including public institutions of higher education, in mapping processes with the establishment of an articulated network in which to better organize their scientific capital, financial and human resources expended in the aggregate of a considerable burden of bureaucratic, academic, research and financial activities. The assumptions of the study consider that the articulation between the actors of this network is deficient and that, due to the constant movement of the unstable political scene, as well as of the updates in the legislation related to science, technology and innovation, the university starts to implement organizational arrangements for to meet the requirements of the federal government and to meet the requirement of social responsibility, but not necessarily promoting integration in its entirety among the strategic sectors. At the end of this research, we were able to identify the perception of the representatives of the analyzed organizational units and to point out strategic elements that which aim to contribute to the public management of this institution. The result contributed to generating a suggestion of articulation and strategic sector interaction in this organization, in order to foster the management of innovation, based on the current reality, a new administrative and political team that assumed its functions for the 2017- 2020.
Um olhar crítico-libertador sobre o movimento de construção curricular da rede municipal de Sorocaba entre 1999 e 2007
(Universidade Federal de São Carlos, 2018-08-21)
Nunes, Fabiana Boschetti
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Torres, Juliana Rezende
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https://lattes.cnpq.br/3083345943491817
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https://lattes.cnpq.br/2260101923416580
The present research deals with the movement of curricular construction of the municipal network of Sorocaba between the years 1999 and 2007, with the objective of investigating the approximations and distances of this one with Paulo Freire's conception of critical-liberating curriculum. It presents a qualitative approach and makes use of bibliographical and documentary research to find the results. The main theoretical bases were: Paulo Freire, Moisey Mikhaylovich Pistrak, Luiz Carlos de Freitas, Antonio Flavio Barbosa Moreira, Thomaz Tadeu da Silva, Ivor F. Goodson, Antonio Fernando Gouvêa da Silva, Ana Maria Saul, Alice Cassimiro Lopes, Demétrio Delizoicov, among others. In the preliminary analyzes, we observed an apparent approximation of the Sorocaba curriculum with the Freirean curriculum perspective, when we find the texts of Paulo Freire, the readings of the innovative experiences coming from the municipalities and the technical staff of the Paulo Freire Institute (IPF, 1998 - like the Citizen School of Porto Alegre). Among the results of the curricular movement of this municipality in constructing a curriculum concerned with the local reality and its articulations with the school knowledge, initially, we observed that this curriculum sought to break the logic of the linear content, of the sequences of contents designated by didactic books, understanding that the specific concepts of the areas of knowledge are not an end in itself, given that such a concept, in a critical-liberating perspective, should be in the service of a social practice. We explain that this curricular proposal, once analyzed based on the curricular theories, went through the three (traditional, critical and post-critical) and also identified the presence of the freirean categories addressed: dialogue, problematization of reality and praxis implicitly, without deepening or distant from conception in Freire, because at that time, the organization of teaching through thematic complexes was mistakenly seen in relation to the generative themes proposed by Paulo Freire.
Juquitiba na modernidade: uma análise da condição socioespacial
(Universidade Federal de São Carlos, 2018-08-21)
Marcelino, Denise de Camargo
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Mariano, Neusa de Fátima
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https://lattes.cnpq.br/5003743301847104
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https://lattes.cnpq.br/7381414457704564
The objective of this study was to identify the process of expansion of the urban way of life that induces socio-spatial segregation, and how an economic and social formation of the place is resistant and present: a temporality parallel to that of global time, which is still part of modernity. The analysis used the concept of place better describe this temporality, starting from the scale of the neighborhood inserted in the municipality. The neighborhood, containing a specific socio-spatial formation, which, not totally achieved by the urbanization of life, is a testimony of a differential temporality that is defended modernity. The importance of place becomes essential to move transformations and give individuals the strength to transform their world, allowing the coexistence of contrasting times in space.
Estudo de vias alternativas aos sistemas LiaFSR e YycFGHIJ que levam à diminuição da sensibilidade à daptomicina em Enterococcus faecium
(Universidade Federal de São Carlos, 2018-08-21)
Mello, Suelen Scarpa de
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Camargo, Ilana Lopes Baratella da Cunha
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https://lattes.cnpq.br/4104096171600845
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https://lattes.cnpq.br/8568026403283913
Enterococcus is one of the most important multi-drug resistant nosocomial pathogens. Infections caused by vancomycin resistant Enterococci (VRE) are becoming increasingly difficult to treat, often with prolonged hospital outbreaks that are real challenges. Daptomycin (DAP) is a drug of last resort for treating infections caused by VRE; mainly E. faecium belonged to clonal complex 17, called "high risk" clone. In this study, samples of E. faecium from the Hospital de Base de São Jose do Rio Preto were analyzed by molecular typing and the susceptibility profile to several antimicrobials was determined. A high-risk vancomycin-resistant clone with reduced susceptibility to daptomycin has been identified spreading in the hospital. The mechanism of DAP resistance is not fully elucidated. For the purpose of studying the mechanism of resistance to DAP in the clinical isolates of this hospital and to identify new pathways to resistance, DAP hyper-susceptible E. faecium HBSJRP18 clinical isolate was used to perform in vitro selections until resistant mutants were obtained. Subsequently, genes with mutation in these selected isolates, as well as those already described in the literature, were analyzed in the clinical samples. Genomes of these mutants were sequenced and compared to the DAP hyper-susceptible E. faecium HBSJRP18 to detect the presence of single nucleotide polymorphism (SNP) in genes that may be related to resistance to DAP. The mutated/intact genes were overexpressed in the hyper-susceptible/resistant strain, thus DAP MIC was determined to investigate their roles in resistance to that antibiotic. The genes that showed mutations in the three BHI selections were lafB-like, a glycosyltransferase possibly involved in the LTA biosynthesis, and dhaK, a dihydroxyacetone kinase possibly involved in the metabolism of glycerol. Cloning and overexpression of the genes of interest were performed, which enabled the evidence of the role of lafB-like in hyper-susceptibility to DAP. dhaK still remains unclear if it is actually involved in resistance. Mutations in these genes were also found in all clinical samples, as well as the liaFSR genes already described in the literature. The findings of this study have a particular importance considering that vancomycin-resistant E. faecium infections have grown frighteningly in the present day. The lafB-like gene may be a potential therapeutic target and should be better studied for this.
Enigma do tempo: o problema da objetividade na contraposição entre Heidegger e Cassirer
(Universidade Federal de São Carlos, 2018-08-21)
Mergulhão, Adriano Ricardo
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Santos, Paulo Roberto Licht dos
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https://lattes.cnpq.br/1681044854219924
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https://lattes.cnpq.br/5484918883344452
This thesis analyses the objectivy problem in both Heidegger and Cassirer works, using the time concept as connecting thread for the comprehension of the existente counterpoint between their theories. This sistematic aprouch makes a reconcilemente of their main thesis possible, because both of them proposes a rereading of the kantian transcendental philosophy, using diferente aproaching methods for a common problem. Thus, the objectivity problem will be discussed, starting from the symbolic-epistemological perspective of Cassirer and the phenomenological-hermeneutic position of Heidegger, according to the positive contrast established between them. We propose that, even having some divergences, both authors enphasize the time concept centrality, implied to the imagination function, exposede in the chapter of the kantian transcendental schematism, as a ground for compreension of the objectivy problem. Therefore, we maintain that there is an interdependence from the antagonism of their positions, because, both center their arguments on the relation between the productive imagination and the objectivity, thematic that propitiates a common ground for the opening of a proficient dialogue. Therefor, the objectivity problem, goal of continuous inquiry in the Heidegger´s proposals and Cassirer´s motions, it will be only properly clarified with the analysis of implications that the time concept acquires in each philosopher’s doctrines, allowing in this way the reciprocal discernment of this theoretical purposes, that overcomes an one-side and preconceived theoretical dichotomy.
O Conselho Municipal de Transporte e Trânsito de São Paulo (CMTT/SP): participação e mobilidade urbana
(Universidade Federal de São Carlos, 2018-08-22)
Barbosa, Gisele Heloise
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Kerbauy, Maria Teresa Miceli
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https://lattes.cnpq.br/4762029784021248
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https://lattes.cnpq.br/0778971514940998
This research analyses the relationship between the creation and development of the São Paulo Municipal Transport and Traffic Council (CMTT-SP) and the June 2013 Protests. Given the proximity of the Protests with the creation of the CMTT and the similarity of the themes, we analyze the complexity of the interweaving of participation, linking the causes and actors of the June 2013 Protests to the participatory institution. This research uses as theoretical basis neoinstitutionalism, deliberative democracy and participatory democracy theory to understand the definitions of institutionalized participation, extra-institutional participation, participatory institution and institutionalization of participation. Also, we situate the concepts in the Brazilian democratic reality, establishing the links between a modality of street protest and the development of an urban mobility policy management council. The research is a case study and adopts a qualitative approach, delimiting as the period of analysis from 2013 to 2017, during the Protests and the creation and development of the CMTT, until the change of city mayor. To answer the proposed objectives we analysed the councils documents, news that contextualized the performance of the actors and legislation related to transportation and urban mobility. We also did semi-structured interview with council members and with members of social movements related to mobility, especially the Free Pass Movement (MPL), indagating on their participation in Protests and in the CMTT. Data analysis showed that the Municipal Transport and Traffic Council held important discussions on urban mobility, allowing the representation of groups that would not have voice if this space did not exist, mainly for the elaboration of the Municipal Mobility Plan. The institutionalization of participation, adopted by the Haddad government by street pressure in June 2013, although there was already a legal need to create the CMTT, proved to be fundamental for the defense of public transport, because there are conflicting interests in the delimitation of public transport space. Although the MPL has formally refused to participate in the Council, some members follow the discussions indirectly. We conclude that there was a very complex relationship between the Council and the June Protests. The themes, the logics of action and the discursive repertoires of the Manifestations appeared at various moments in the Council's trajectory, evidencing the interweaving between the two participatory processes and proving the hypothesis presented in this work.
Promoção de crescimento de cultivares de alface pela levedura rizosférica Torulaspora globosa
(Universidade Federal de São Carlos, 2018-08-22)
Cabrini, Paloma Garcia
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Sala, Fernando César
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https://lattes.cnpq.br/6771975466075202
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Rosa-Magri, Márcia Maria
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https://lattes.cnpq.br/4166319985147604
The soil harbors great microbial diversity which remains unknown, as regards species, microbial groups and functions in the ecosystem. Among the known microorganisms that inhabit the soil, one group is described as beneficial to agricultural activities: the plant growth promoter microorganisms (PGPM). They are able to aid the development of plants through, mainly, the production of phyto-hormones, nutrients solubilization and control of phytopathogens. Among the PGPM, yeasts present slight prominence, because they are in less quantity in the soil. However, studies in the literature indicate that this group presents great potential, as it presents excellent results in in vitro experiments, regarding the main mechanisms of stimulus to plant development. Considering the above, the objective of this work was to evaluate the germination, initial development of seedlings, seedlings and adult lettuce plants inoculated with the rhizosphere yeast Torulaspora globosa and its metabolites. Two experiments were realized; the first consisted of the inoculation of seeds and lettuce seedlings of the Crocantela variety under greenhouse conditions, germinated in substrate and transplanted to the field. The second experiment consisted of evaluating, under laboratory controlled conditions, the action of yeast, its metabolites and tryptophan on germination and initial development of lettuce (Crocantela and Valentina varieties). Finally, the action of the diazotrophic bacterium Azospirillum brasilense, alone and co-inoculated with the yeast, was evaluated in the development of the Valentina variety. The results showed that for yeast and field trials, yeast inoculation provided seedlings with a lower root length, despite a higher root mass (smaller and more branched root system). The leaves appeared wider and longer, which was reflected in a larger mass of the aerial part. The evaluation of the plants at the post-harvest showed that for the variables height, leaf number, leaf length and width, and fresh weight of shoot, the noninoculated treatment had statistically lower values. The results for the trials under controlled conditions showed that the treatment of the seeds of the cultivars Crocante and Valentina did not affect significantly the germination. The seedlings, however, of the Crocantela variety showed roots smaller and with less area when treated with the yeast and its metabolites. The metabolites of the yeast with tryptophan (T7), in turn, provided a larger root diameter. The data obtained by the Valentina variety showed that the treatment with yeast, its metabolites and addition of tryptophan (T5) provided the best results, especially for volume, root area and number of root tips. The treatments with tryptophan addition (with yeast (T6) or metabolites (T7)) presented the least satisfactory results for the development of the seedlings. It was possible to observe that the treatment 5 also showed the best in stimulating the production of root hair for the Valentina variety. The addition of the A. brasilense, isolated and in co-inoculation with the yeast, did not promote significant growth of lettuce seedlings of the Valentina variety. From the data presented we can observe that the inoculation of the seeds and seedlings with the yeast showed to be efficient in the promotion of lettuce growth. Studies related to inoculation methods, inoculum formulations, cell concentrations and chemical analysis of the metabolites produced, however, are imperative to optimize the results of growth promotion and the establishment of the technology.