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O papel da música na educação infantil: um estudo bibliográfico voltado à formação de pedagogos
(Universidade Federal de São Carlos, 2017-07-21)
Formes, Robson Nicio
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Lombardi, Lucia Maria Salgado dos Santos
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https://lattes.cnpq.br/5697508831302188
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https://lattes.cnpq.br/6281111399814163
Music is present in the human being's life from the mother's womb due to the baby's perception of external sounds, which create a sound universe during pregnancy that makes him a listener and an apprentice. Since then, hearing and affective familiarities have been created through music. While expressing language, music also generates sensations, learnings and builds memories. The presence of music in teaching practice in the Early Childhood period allows the child to have more possibilities for expression and learning in different aspects of her/his process of discovering the world and herself/himself. Based on this premise, the work investigated the importance of working with music in the segments of Early Childhood Education. This is a research has a qualitative approach and bibliographic character, having searched for sources of information in articles, books, dissertations, theses and carried out an analysis, comparing its contents, comparing results and reaching broader understandings on the theme.
Estudo computacional do líquido GVL (Gama-valerolactona): Influência da quiralidade nas propriedades termodinâmicas
(Universidade Federal de São Carlos, 2017-07-21)
Colombari, Felippe Mariano
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Freitas, Luiz Carlos Gomide
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https://lattes.cnpq.br/3461414255262928
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https://lattes.cnpq.br/9125284789525799
Besides its properties as a “green solvent”, organic molecule Gamma-valerolactone is also a chiral compound, presenting potential applications in enantioselective processes. Once obtained the adequate parameters for liquid phase simulations, different computational models were employed in order to investigate how chirality influences its thermodynamic properties. Under thermodynamic equilibrium, neither energetic nor structural differences between GVL racemic mixture and its enantiomeric pure counterparts were observed. Analysis of the most stable dimers extracted from a Monte Carlo simulation of the racemic mixture revealed subtle interaction energy differences when homochiral (RR and SS) pairs were compared to heterochiral (RS and SR) pairs, which indicated a subtle energetic preference for the homochiral ones. On the other hand, significant chiral discrimination were obtained using nonequilibrium methods. Solvation process for both R and S enantiomers of 1-chloro-1-aminoethane (CAE) in liquid SGVL via Thermodynamic Perturbation Theory resulted in a chemical potential nearly 3;3 kJ mol-1 lower for R-CAE when compared to S-CAE, indicating that the utilization of GVL as a chiral liquid could increase the yield of processes involving chiral species in condensed phase. Binding process of GVL molecules giving rise to both homochiral (SS) and heterochiral (SR) dimers in vacuum, via Umbrella Sampling method, could show that although both pairs had similar binding free energy values, major differences could be observed on these free energy profiles when higher molecular contact was imposed by Umbrella Sampling spatial confinement. Such binding process of GVL molecules was also studied in both RGVL and SGVL liquids. Thus, although lower binding free energy values were obtained, a nearly 20 % difference could be observed due to solvent chirality.
Avaliação visual da saúde de solos sob diferentes usos
(Universidade Federal de São Carlos, 2017-07-21)
Bevilaqua, Lucas José
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Assad, Maria Leonor Ribeiro Casimiro Lopes
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https://lattes.cnpq.br/0379324550884468
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https://lattes.cnpq.br/6401314425579704
Defining when an agroecosystem can be considered healthy is one of the challenges faced by both family farmers and extension workers and researchers. There are several methodologies of visual evaluation of indicators that indicate their health and the first chapter is a bibliographical review on the methods of visual evaluation of the soil. The second chapter deals with a fieldwork in which seven methods for the determination of soil visual assessment indexes (IAVS) in six different soil uses, including the Visual Soil Health Assessment Method (AVSS), modified in this research and with emphasis on edaphic macrofauna. The study was carried out at the São Sebastião site, located in the city of Terra Roxa (SP) in areas of riparian forest (MCI), agroforestry system (SAF), organic sugar cane (CAN) and orchard (POM), all in Red Latosol, in a permanent preservation area (APP) and pasture (PAS), both in Gleissolo. MCI and SAF and APP treatments, which had greater plant diversity and tree species, had the highest IAVS. The AVSS proved to be useful and highly sensitive in the evaluation of soil quality in the different management systems analyzed in the property. The third chapter discusses the use of soil macrofauna as a soil health bioindicator and how it can be included in soil visual assessment methods in a simple and accessible way for farmers. Ten groups of edaphic macrofauna were found, as well as eggs and larval stages, including animals that perform several ecological functions in the soil. The diversity of macrofauna was higher in the areas that received the highest indices in the visual evaluations of the soil. The SAF presented the highest diversity of invertebrate macrofauna in the soil. Soil management and tillage systems affect the structure of the dominant taxonomic groups of the edaphic macrofauna. Soil fauna can be used as a bioindicator of soil health.
Condições materiais no atendimento escolar à educação infantil no campo : região de Bragança Paulista/SP (2007 a 2015)
(Universidade Federal de São Carlos, 2017-07-25)
Preto, Mariany Cristina Fardin
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Bezerra, Maria Cristina dos Santos
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https://lattes.cnpq.br/1095065753077001
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https://lattes.cnpq.br/5205258480329038
The purpose of this study is to describe the current conditions of the school support system that Brazilian Countryside Early Childhood Education students are provided with. This study was conducted at schools in the state of São Paulo, Brazil, in a period between 2007 and 2015. The study analyzed data samples of eight cities within the Regional Board of Education in the Bragança Paulista area. The data samples were collected in a micro-data database from Scholar Census. The eight cities within the Regional Board of Education in the Bragança Paulista area presented the highest school enrollment rates in the state of São Paulo. This study initially presents considerations about Brazilian Early Childhood Education and Countryside Education histories to contextualize the study and set the study’s goal. The study shifts focus to how Brazilian legislation assures the Countryside Early Childhood Education, verifies how the legislation prescribes the students’ rights and understands the influence of International Organizations in drawing up these documents. Lastly, the study analyzed the scholar micro-data in the proposed period, where it was assumed that there were improvements in the Early Childhood Education in the studied area. However many of the schools still lacked fundamental infrastructure conditions, physical resources and electronic devices. In conclusion, the study indicates the importance of educational policies that benefit countryside citizens and the Countryside Early Childhood Education as well as public educational funding to enable better quality regarding the Early Childhood Education.
Aprendizado de máquina aplicado ao auxílio do diagnóstico da doença de Parkinson
(Universidade Federal de São Carlos, 2017-07-26)
Pereira, Clayton Reginaldo
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Papa, João Paulo
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https://lattes.cnpq.br/9039182932747194
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https://lattes.cnpq.br/9083697774870852
Currently, it is not a trivial task to point out a test that can diagnose accurately enough a patient with Parkinson’s Disease, as well as it is quit difficult to assess the level of the disease. Experts recommend the application of different types of tests, many of them based on signs and biomedical imaging, such as electroencephalogram, computed tomography and magnetic resonance to aid the detection of the disease process, since as the age ranges, symptoms such as fatigue and weakness can hide diagnosis. In order to provide a more effective clinical information to doctors aiming at diagnosis with greater confidence, methodologies to perform the fusion of different imaging modalities have become increasingly popular and promising. Recently, the use of forms containing some activities using a biometric pen with multi-sensors have been applied for the detection of Parkinson’s Disease by means of handwriting analysis. However, information derived from the scanned image of the form itself, and the one obtained by same pen have not been used together for this purpose. Thus, this proposal aims using pattern recognition techniques and image processing aimed at using the information from the form together with data from the pen. We believe a possible improvement in the medical diagnosis of Parkinson’s Disease can be archived. Another contribution of this proposal, is the design of a multimodal database to aid in the diagnosis of Parkinson’s Disease.
Reações fotoquímicas promovidas por luz visível para a síntese de compostos heterocíclicos
(Universidade Federal de São Carlos, 2017-07-27)
Caiuby, Clarice Alves Dale
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Corrêa, Arlene Gonçalves
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https://lattes.cnpq.br/7425467156776144
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Paixão, Márcio Weber
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https://lattes.cnpq.br/3773908504964104
In the last decades, the emphasis and application of the principles of Green Chemistry have inspired a change of behavior, both in industry and academy, towards a more sustainable chemistry aiming the synthesis of the desired product with a lower number of steps, high yields and the use of nontoxic hazardous chemicals. In this context, the increasing recognition of the environmental benefits originated from the visible-light-induced photochemical reactions, when compared to the thermal conventional methods, is motivating the scientific community to develop new photochemical approaches that are more efficient and simpler to operate, focusing on the development of new strategies for the synthesis of biologically active organic compounds. Efficient synthetic approaches for the formation of heterocycles based on indolines, 2,3-dihydrobenzofurans and 6-(trifluoromethyl)phenanthridine were developed through radical cascade reactions promoted by visible light. In addition to synthetic development, the mechanisms of the reactions were also investigated by a set of controlled experiments, spectroscopic studies and characterization techniques.
Efeitos do pensar sobre o passado : pensamentos contrafactuais de estudantes universitários com e sem indicativos de depressão
(Universidade Federal de São Carlos, 2017-07-28)
Faccioli, Juliana Sarantopoulos
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Schelini, Patrícia Waltz
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https://lattes.cnpq.br/6185333517392859
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https://lattes.cnpq.br/0106802523076912
Counterfactual thinking is a type of imaginative thought, usually characterized by “What if” thoughts, in other words, hypothetical alternatives to reality, commonly spontaneously elaborated by negative or unexpected events. There are some functions of counterfactual thinking that are important for adaptation, such as re-elaboration about everyday life. Some researche indicate that the function of this type of thought can be a handicap. The objectives of this study were to: (1) compare counterfactual thinking of undergraduates with and without signs of depression, to verify if there is any difference in the way they think about alternatives to reality and (2) verify what kinds of activities to generate counterfactual thinking are most effective. Participants were 145 undergraduates, with an average age of 22,1 years. For the comparison sample, the students were divided in two groups, according to their scores on the Beck Depression Inventory: people without signs of depression (less than 8 points) and people with signs of depression (more than 12 points). Participants answered identification questions, the Beck Depression Inventory and the Counterfactual Thought Evaluation Technique (including a self-report measure and three stories). Participants answers was categorized by content analysis and the frequency of each category was compared using between groups t-Test. Participants with signs of depression wrote more self-reports about affective relationship and participants without signs of depression wrote more self reports about academic situations. In general, the style of counterfactual thinking showed few statistical differences between groups. Counterfactual self-reports presented the greatest differences, and indicate that people with signs of depression tended to elaborate more counterfactual thinking than people without signs of depression, when they reflected on their situations. For the self-report, counterfactual thinking was, in general, categorized as upward, additive, self referent and based on an action/inaction. For the three stories, there was no difference between the styles of counterfactual thinking between the two groups and their responses were categorized as mostly upward, subtractive, self referent and based on an action/inaction. Only the story with a positive outcome led to more downward counterfactual thinking. From this research, concludes that people with indicative of depression tend to generate more counterfactual thoughts than people without indicative of depression, especially when they think about self-report and stories with negative outcomes. The style of counterfactual thinking described by both groups presented the same pattern, which indicates that the style of counterfactual thinking may not be related to maintenance or development of depressive symptoms.
Síntese em batelada ou fluxo contínuo de compostos N- e O-heterocíclicos e avaliação da atividade inibitória frente a enzima acetilcolinesterase
(Universidade Federal de São Carlos, 2017-07-28)
Monteiro, Júlia Lammoglia
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Corrêa, Arlene Gonçalves
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https://lattes.cnpq.br/7425467156776144
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https://lattes.cnpq.br/1959974228230652
Alzheimer’s disease (AD) is currently the most common type of dementia, characterized by a progressive loss of memory and deterioration of cognitive functions. Most approved drugs for AD treatment are acetylcholinesterase (AChE) inhibitors (AChEI), mainly responsible for reduced rates of the neurotransmitter acetylcholine (ACh) in the synaptic process. In this context, organic synthesis, specially the synthesis of heterocycle compounds, plays a key role in drug discovery, since these compounds are related to a broad spectrum of biological activity. In the last decades, the use of continuous flow reactors in organic synthesis stands out as an important tool for developing safer, more efficient and sustainable methodologies. This thesis is focused on the synthesis of coumarins, hydantoins, indoles and pyrroles derivatives, aiming to obtaining potential AChE inhibitors. When possible, the synthesis of such compounds was conducted employing alternative methodologies based on green chemistry concepts, aiming to decrease the synthetic steps, use alternative energy sources, e.g. microwave reactors, substitute toxic solvents or even apply solvent-free protocols, and use continuous flow reactors. Initially, a new method was developed for the one-pot synthesis of high structural complexity piperidinocoumarins in good yields and selectivities, trough asymmetric organocatalysis followed by an Ugi-Smiles type reaction. One alternative route was also employed for the synthesis of reduced hydantoins over tree steps, starting from asymmetric aziridines. Also regarding the hydantoin’s synthesis, it was developed a continuous flow protocol of the Bucherer-Bergs reaction to afford 5- and 5,5-disubstituted hydantoins faster, safer, and more efficient when compared to the conventional methodology. Finally, we developed a protocol for the trifluoromethylation of indoles and pyroles under continuous flow conditions, based on the Minisci reaction, using perfluor halides as starting material. Aiming to collaborate with the structureactivity studies of the coumarins against AChE, hydantoin-coumarin hybrids were synthesized. All compounds were evaluated against AChE and showed low to moderate enzymatic activity.
Estudo da interação de campos eletromagnéticos na faixa de micro-ondas e luz visível na cultura de Rúcula (Eruca sativa) : desenvolvimento de dispositivo para a otimização da olericultura baseado na incidência da luz
(Universidade Federal de São Carlos, 2017-07-28)
Alvares, Adriano de Souza
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Trevelin, Luis Carlos
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https://lattes.cnpq.br/5082419783043736
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Moreira, Fernando Manuel Araújo
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https://lattes.cnpq.br/1809254923092721
Faced with the increase in vegetable production in Brazil to 16 million tons and the collection of 8 billion reais in 2016, studies have begun on both planting and vegetables. Information from the market of vegetables shows that lettuce is the most consumed herbaceous in the country; However the consumption of arugula has been growing over the years and is currently a strong competitor of lettuce both in consumption and in terms of economic attractiveness.Due to this growing interest in recent years, in this study we analyze the interactions - and the effects - of electromagnetic waves in the visible light range and microwaves in the production of arugula. Through the obtained results, we developed a device that guarantees the correct color (wavelength) and light tonality to optimize the germination - and therefore the production - of the arugula.The analized samples were treated with light from light emitting diode (LED) sources at wavelengths of the visible spectrum at frequencies corresponding to red, green and blue colors and still with electromagnetic radiation in the range of micro (0.3 to 300 GHz) specifically at the 2.4 GHz frequency. These treatments were performed with the 8h LED setting, 8h of solar clarity and 8h night, while the 2.4 GHz treatment remained irradiated for 24h, receiving 12h of solar clarity and 12h night. Control samples were submitted to 12h of solar clarity and 12h night. All samples were treated for 7 days.The biometric measurements (leaf size, aerial part and root), fresh mass, dry weight and humidity percentage, chlorophyll a, b, total and carotenoid measurements and quantification of macro and micronutrients as Calcium (Ca), Iron (Fe), Magnesium (Mg), Manganese (Mn), Copper (Cu), Potassium (K), Sodium (Na) and Zinc (Zn).The results shows that red LED light obtained better results in biometric characteristics, wet mass and macro and micronutrient values than indicated by ANVISA through the IDR (Recommended Daily Intake) index.The low-cost device developed, proved to be important for identifying and aiding in the parameterization of light through the appropriate use of each color and tonality of the electromagnetic radiation used, thus promoting different responses in the culture. The intellectual protection of this device with the INPI (National Institute of Industrial Property) has already been initiated through the Innovation Agency of UFSCar.The results obtained in this work with the red LED will allows the extension of this project to more sophisticated studies involving the concept of quantum coherence, as recently pointed out in a study published in the Nature journal.
Avaliação in vivo da inativação fotodinâmica para tratamento de pneumonia
(Universidade Federal de São Carlos, 2017-07-31)
Geralde, Mariana Carreira
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Kurachi, Cristina
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https://lattes.cnpq.br/0194007981724312
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Bagnato, Vanderlei Salvador
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https://lattes.cnpq.br/4947860249518663
Infectious pneumonia is a major cause of morbidity/mortality, mainly due to the increasing rate of microorganisms resistant to antibiotics. Photodynamic Inactivation (PDI) is emerging as a promising approach, as effects are based on oxidative stress, preventing the emergence of resistant microorganism strains. In previous studies, the in vitro inactivation of Streptococcus pneumoniae using indocyanine green (ICG) and infrared light source was successful, and achieved reduction of 5 log10 colony-forming units (CFU/mL) with concentration as low as 10 μM ICG. In the present study, a proof-of-principle protocol was designed to treat lung infections by PDI using extracorporeal illumination with a 780 nm laser device and ICG as photosensitizer. In a first row of experiments, hairless mice were infected with S. pneumoniae and PDI was performed two days after infection. For control groups, CFU recovery ranged between 103-104 CFU/mL/mouse. For PDT group, however, no bacteria were recovered in 80% of the animals. Animal survival was evaluated separately over 50 days. No deaths occurred in PDT group, whereas 60% of the control did not survive. Lung injury analyses were performed in BALB/c mice, the bacteria reduction were 2 and 4 log10 in 2 mice (5 in total) and the wet-to-dry ratio showed that PDI did not increase the edema in lungs. The bronchoalveolar lavage data indicated a larger absolute number of cells (mononuclear and polymorphonuclear) in the PDI group in contrast to control group, meaning that the technique could increase the immune system response. In vitro results showed the irradiated ICG could generate aggregates or photoproducts that help PDI to inactivate the bacteria. Our results indicate that extracorporeal PDI has potential for pneumonia treatment, and pulmonary decontamination with PDI may be used as a single therapy or as an antibiotics adjuvant.
Banco Central e os sentidos sociais da ação em política monetária : as justificações morais distintas dos usos sociais do dinheiro
(Universidade Federal de São Carlos, 2017-07-31)
Silva, Márcio Rogério
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Grün, Roberto
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https://lattes.cnpq.br/6028266827740491
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https://lattes.cnpq.br/6859176963189141
It is a study about the social meanings emerging from the monetary policy action of the Central Bank of Brazil (BCB) between 1995 and 2016, using comparisons with agents of the Federal Reserve (Fed), European Central Bank ( ECB) and pressure groups inserted in a broader social space, aiming to understand the social meanings of decision making on such a policy, based on structural and moral inheritances throughout the historical process of the role of the Central Banks. Under the sociology of Boltanski and Thevenot's critical capacity, supported by the prosopography, narrative, content, and financial statements methods, by reference to situational disputes over interest rates, it was possible to demonstrate that there are moments in which there is convergence between the position and the Position at the BCB, while at other times they influence more public-economic-financial coalitions or the performative pressure of groups outside of power, especially in cultural disputes that open up larger areas of opposition, opposing Hawkish practices to practices Dovish (monetary easing), emerging moral senses of accusation and defense. Finally, it was concluded that the monetary counter-performance between 2011 and 2014, contrary to the equivalence agreements in monetary policy, was one of the important variables for the establishment of a political crisis, along with other multisectorial factors. To this end, this tension has indicated a meta-heuristic operator of interest and debt which anchors high interest in technical-moral justifications, as justification in the "sacrifice" and "just reward" to financiers and as "punishment" to the "irresponsible".
Subsídios de um projeto híbrido internacional para o ensino de inglês na tecnologia de gestão empresarial: cenários verossímeis
(Universidade Federal de São Carlos, 2017-08-02)
Succi Junior, Osvaldo
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Paula, Sandra Regina Buttros Gattolin de
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https://lattes.cnpq.br/9228036521343293
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https://lattes.cnpq.br/5932844153538165
Technological advancements drive the growth of online interactions to carry out activities that require the collaboration of participants. Both in business transactions and in academic situations, groups of collaborators strive to find hybrid solutions that integrate face-to-face and at distance activities. After participating in two virtual exchanges (VE) between two higher education institutions, a Brazilian and an American one, I decided to focus this study on some aspects present in the interactions between professors and students from both institutions. My expectation was that these evidences, aligned with a process of self-reflection, could serve as a contribution for professors of English language disciplines, not only in Business Management programs, but also in other similar programs in different Brazilian institutions. The VE under analysis was developed by a team of professors from both institutions and involved a series of online activities for groups of students to discuss the process of introducing a product or service in either the Brazilian or the American market. These activities were utilized as evidence to analyze cultural and linguistic aspects in exchanges like this. In theoretical terms, I used the Multiliteracies approach (NEW LONDON GROUP, 1996; COPE & KALANTZIS, 2017) and the Case Study (GIL, 2002; PIMENTA, 2005) to analyze the presence of stereotypes and preconceived ideas in participant exchanges, especially those done via a social network. The evidences generated by this analysis helped me self-reflect on, among other things, the relevance of teacher awareness regarding the insertion of pedagogical moments that allow students and professors to discuss and deconstruct stereotypes in interactions involving students from different cultures.
Plano diretor municipal e participação popular contributiva avaliados por um modelo integrador
(Universidade Federal de São Carlos, 2017-08-03)
Colenci, Pedro Luciano
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Oliveira, Celso Maran de
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https://lattes.cnpq.br/9911833172043700
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https://lattes.cnpq.br/7632574186989869
This thesis is about contributory participation in the elaboration and updating of urban planning and its goal is to demonstrate the influence of contributory management in the transformation processes which currently affect life in the cities and the Urban Planning processes. Thus, it describes the historic, political and legal development of the Brazilian urbanism; it also identifies the construction of urban law as an autonomous field of law, with the purpose of demonstrating that this field, notwithstanding it being an autonomous legal institute, it relies on political issues. It was analyzed the city democratic management and the limits of its contingency, it was carried out a diagnostic of the citizenry contribution effectiveness in the municipal public management, it was examined the participatory democracy in the city of São Carlos, in a direct way as well as in a secondary one, and, finally, it was explained the current phase of municipal planning through an integrating model. It is important to highlight that, parallel to this research, two other researches were conducted in order to accompany, collect data and evaluate the review process of the Strategic Plan of São Carlos city; as a result of this research, it is suggested a Maturity Model. Regarding the methodology, this work can be classified as a descriptive, exploratory research. As for the technique employed in the data collection, it was supported by bibliographic, documental research and the analysis of secondary data to be obtained from accomplished researches. As a research result, it was identified that the need to systematize the municipal planning activities results from the rational comprehensive model which derivate from a schematized model of decision making, which this study proposes to evaluate the Maturity Degree of the involved agents in the formation and reviewing process of the Urban Planning, with the aim of engaging the representatives and the people, in which technology and social science contributed to a better world and in which planning would be an important instrument to social progress. Therefore, participation seems as a fundamental element towards balance of the factors influencing the decision-making process.
Magneto hipertermia in vitro em células hek293t utilizando nanopartículas de óxido de ferro magnéticas com diferentes recobrimentos
(Universidade Federal de São Carlos, 2017-08-03)
Shigeyosi, Willian Takemitsu
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Cardoso, Mateus Borba
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https://lattes.cnpq.br/5602822410102641
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https://lattes.cnpq.br/5442217738319985
One of the largest challenges on medicine has been developing treatments for several types of cancer. Moreover, conventional treatments for cancer such as chemotherapy and radiotherapy have been presenting undesirable secondary effects. As an alternative, nanomaterials have the premise of improving and creating a new route of treatment and diagnosis. Currently, iron oxide nanoparticles are strongly studied especially because of their ability to produce heat when they are subjected to an alternating magnetic field. The mechanism of induced heating via external magnetic field is called magnetic hyperthermia and, through this mechanism, it becomes possible to make the biothermic applications and use drug delivery system. The advantage of using a magnetic nanomaterial comes from the unusual feature knew as superparamagnetism. The superparamagnetic systems does not present spontaneous magnetization nor coercive field therefore their magnetization curves do not present hysteresis losses. Therefore, the motivation of this work comes from the need for biophysical information regarding the hyperthermic magneto treatment of these nanomaterials in human tissues. Thus, the aim of this thesis is to deal with fundamental aspects related to the behavior of the Fe3O4 nanoparticles in cell media during hyperthermia. In this context, it will be approaching some questions about the use of iron oxide nanoparticles with distinct types of coatings. Discussing the advantages and disadvantages of each coating according to its physico-chemical characteristics as well as its cytotoxicity. In addition, this work approaches the hyperthermic magneto potential of these superparamagnetic coated nanoparticles by comparing their respective performances in the treatment of human’s embryonic kidney cells HEK293T. Through the development of this work it was observed that for a good bioapplicability’s samples must present a low cytotoxicity, in this case the coatings formed by surfactants like centrimonium bromide and sodium dodecyl sulfate presented a high rate of cellular mortality not being indicated for the treatment. Finally, the potential of magnetic hyperthermia for a biocompatible nanomaterial should be evaluated, in this case the best results associated to hyperthermia treatment were obtained for nanoparticles coated with chitosan, polyethylene glycol and PEGylated phospholipid.
Qualidade físico-química e sensorial das alfaces das cultivares Romanela e Rubinela produzidas em diferentes sistemas de cultivo
(Universidade Federal de São Carlos, 2017-08-03)
Rossi, Cláudia Margareth Abe
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Verruma-Bernardi, Marta Regina
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https://lattes.cnpq.br/3470912236544684
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https://lattes.cnpq.br/2689462045181413
Lettuce is one of the vegetables with the highest consumption and economic importance worldwide, extensively cultivated in all continents, particularly in temperate and subtropical regions. In Brazil, there is a market that explores new varieties for the tropical climate. The cultivars Romanela and Rubinela are innovative varieties, since they are crunchy and tropicalized. Lettuce cultivation can be carried out in different cropping systems, which have different characteristics in their management practices and can influence the quality parameters of this vegetable. The aim of this work was to verify the physical, physicochemical and sensory quality of these cultivars produced in conventional, hydroponic and organic systems. The plantings of the conventional system and the hydroponic system were conducted in the experimental area of CCA – UFSCar; the organic system was performed in a ranch in the city Cordeirópolis - São Paulo State. After the harvest, the samples were evaluated regarding leaf area, leaf size, unit leaf area, fresh mass, mass loss, turgidity pressure, instrumental color, pH, total soluble solids (TSS), total titrable acidity (TTA), total phenolic compounds (TPC), and sensory characterization. The cultivation systems influenced the physical characteristics size, weight and mass loss of the Romanela lettuce. For the Rubinela lettuce, the type of cultivation influenced in fresh mass and mass loss. The organic cultivar (cv) Romanela presented dark green color and superior values for pH, TSS and TPC. The hydroponic Romanela had the highest value for TTA. The organic cv. Rubinela presented the most intense red color and the highest STT and TPC values. The hydroponic Rubinela lettuce presented the lowest pH and TPC values and the highest TTA value. In the sensory analysis, the evaluators noticed a difference in the attributes green color, leaf size and crunchiness, grassy aroma and sweet taste for the Romanela cv. The conventional and hydroponic Romanela lettuce presented the highest preference. For cv. Rubinela, the evaluators noticed a difference in the attributes purple and green colors, leaf thickness and size, sweet and bitter tastes. The conventional and hydroponic Rubinela lettuce were the preferred, with the hydroponic presenting the highest purchase intention. Therefore, the physical-chemical and sensorial characteristics of the new lettuce, Romanela and Rubinela cultivars were influenced by the conventional, hydroponic and organic cultivation system, generating production and post-harvest information of importance for the producer and consumer.
Filtragem automática de opiniões falsas: comparação compreensiva dos métodos baseados em conteúdo
(Universidade Federal de São Carlos, 2017-08-04)
Cardoso, Emerson Freitas
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Almeida, Tiago Agostinho de
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https://lattes.cnpq.br/5368680512020633
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https://lattes.cnpq.br/7714557242920689
Before buying a product or choosing for a trip destination, people often seek other people’s opinions to obtain a vision of the quality of what they want to acquire. Given that, opinions always had great influence on the purchase decision. Following the enhancements of the Internet and a huge increase in the volume of data traffic, social networks were created to help users post and view all kinds of information, and this caused people to also search for opinions on the Web. Sites like TripAdvisor and Yelp make it easier to share online reviews, since they help users to post their opinions from anywhere via smartphones and enable product manufacturers to gain relevant feedback quickly in a centralized way. As a result, most people nowadays trust personal recommendations as much as online reviews. However, competition between service providers and product manufacturers have also increased in social media, leading to the first cases of spam reviews: deceptive opinions published by hired people that try to promote or defame products or businesses. These reviews are carefully written in order to look like authentic ones, making it difficult to be detected by humans or automatic methods. Thus, they are used, in a misleading way, in attempt to control the general opinion, causing financial harm to business owners and users. Several approaches have been proposed for spam review detection and most of them use techniques involving machine learning and natural language processing. However, despite all progress made, there are still relevant questions that remain open, which require a criterious analysis in order to be properly answered. For instance, there is no consensus whether the performance of traditional classification methods can be affected by incremental learning or changes in reviews’ features over time; also, there is no consensus whether there is statistical difference between performances of content-based classification methods. In this scenario, this work offers a comprehensive comparison between traditional machine learning methods applied in spam review detection. This comparison is made in multiple setups, employing different types of learning and data sets. The experiments performed along with statistical analysis of the results corroborate offering appropriate answers to the existing questions. In addition, all results obtained can be used as baseline for future comparisons.
Novas abordagens na síntese de heterociclos com potencial aplicação na síntese de moléculas bioativas
(Universidade Federal de São Carlos, 2017-08-04)
Alves, Tânia Mara Ferreira
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Ferreira, Marco Antonio Barbosa
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https://lattes.cnpq.br/6874055640224407
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https://lattes.cnpq.br/2711137157839870
Cobalt-catalyzed oxidative cyclization of gem-disubstituted conjugated alkenols: In this part of the work we applied the Mukaiyama Oxidative Ciclization under oxidative and reduced termination conditions aiming the preparation of trisubstituted 2,5,5-THFs-trans from gemdisubstituted aromatic conjugated olefins with different electronic properties. The THFs were obtained only under reduced termination conditions, with of 32-44% of yields. Under oxidative termination conditions, only products from secondary radical reactions that competed with the oxidative cyclization reaction were observed. In addition, the diastereoselectivity involved in this process was evaluated,, which in this case were obtained in 17-46% of yields and dr 2.5:1 to 5.4: 1. Preparation of 1H-1,2,3-triazole under more sustainable conditions: In this second part of the work the main objective was to develop an one-pot methodology for the preparation of 1H-1,2,3-triazoles from nitrolefins. This methodology is inserted in a concept of a more sustainable chemistry, since the obtaining heterocyclics was carried out through a metal-free approach, using the green solvent PEG400, and the direct use of sodium azide. The 1H-1,2,3-triazoles were obtained via one-pot reaction in good yields (54-80%).
Desenvolvimento de materiais mesoporosos baseados em sílica oriunda de biomassa para utilização como sistema remediador de hidrocarbonetos policíclicos aromáticos
(Universidade Federal de São Carlos, 2017-08-04)
Costa, José Arnaldo Santana
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Silva, Caio Marcio Paranhos da
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https://lattes.cnpq.br/7793686262868668
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https://lattes.cnpq.br/5913578662870885
This work describes the synthesis and characterization of mesoporous materials from the use of amorphous silica extracted from rice husk ashes (RHAs), as well as the preparation of mixed matrix membranes (MMMs) using the mesoporous materials as filler materials to be used in the remediation of the polycyclic aromatic hydrocarbons (PAHs). The mesoporous materials were synthesized by the hydrothermal method and the MMMs by casting. It was possible to observe that the acid treatment did not alter the molecular structure of the RHSs, as well as there was an increase in the percentage of SiO2 in the thermal stability. The RHAs presented an amorphous silica nature, with the characteristics of a fine powder of white color, with type IV isotherms and H1 type hysteresis, and high surface area values. The hydrothermal method was efficient in the synthesis of the mesoporous materials, which presented TGA curves and characteristic bands of the formation of the amorphous condensed silica framework, typical of mesoporous materials of the M41S family, with high surface area. The casting method was efficient for the preparation of the MMMs, which showed a good dispersion of the mesoparticles incorporated, small-angle ordering and a small increase in the Tg values of the MMMs with the incorporation of the MCM−41−NH2 (CCA). The adsorption tests showed that there was an increase in the adsorbed amount (qe) with the increase of the initial concentration of the HPAs, adsorbent amount, contact time, and temperature, however pH variation was not significant. The adsorption kinetics was relatively fast and followed the non-linear pseudo-second order model, and the isotherms obtained were more adequate to the theoretical Langmuir model. The values of qe found for the mixture of HPAs Naf, B[b]F, B[k]F, and B[a]P were in the same order of magnitude for all adsorbent materials tested: Naf < B[a]P < B[k]F < B[b]F due to the hydrophobic effect. The transport properties were more influenced by the incorporation of the MCM−41−NH2 (RHA) into PSf−Ac than the addition of the PABA−MCM−41 (RHA) in PES, as the best results of the rate of permeation, rate of retention, and percentage of removal were obtained for the MMMs based on PSf, however the pure PSf and PES membranes presented similar results.
Ações pública e privada no processo de ocupação de Ribeirão Preto: do núcleo Antônio prado a atuação do GDU Grupo de Desenvolvimento Urbano
(Universidade Federal de São Carlos, 2017-08-04)
Melo, Rose Elaine Borges de
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Silva, Ricardo Siloto da
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https://lattes.cnpq.br/5346985934880710
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https://lattes.cnpq.br/8602449876992473
The work studies the performance of the different agents of the real estate market in the process of occupation of the South sector, located in the geographical periphery of the Ribeirão Preto´s City, from 1990 to 2010. The study was based on the analysis of the actions of the productive agents of the real estate market, especially the UDG Urban Development Group (association of builders, developers and land owners) and actions of the municipal public power as a regulator of urban space. In this way, we analyze: the legislation through the urbanistic instruments of control of land use and occupation; Programs, urban projects and master plans through the concepts and guidelines used in the production and organization of urban space (occupation pattern, growth guidelines and urban structure); Public services through the implementation of infrastructure and urban equipment; And, allotments and condominiums horizontal and vertical through the projects approved in the Secretariat of Planning and Public Management of Ribeirão Preto. The results verify the hypotheses that guided the accomplish of this research: 1) in addition to socioespatial segregation center periphery, from its beginnings, the process of formation and expansion of Ribeirão Preto´s City presents a pattern of occupation where the high income population predominates in the southern region and the population of Low income in the north of the city 2) real estate agents such as developers, real estate developers and landowners, among others, acted in an organized way in the process of occupation of the South sector, located in the geographical periphery of the city of Ribeirão Preto, in the Period from 1990 to 2010 becoming the effective planners of this urban space.
Efeitos da diminuição do tamanho médio de partículas da frita nas propriedades dos esmaltes cerâmicos visando aplicação na esmaltação digital
(Universidade Federal de São Carlos, 2017-08-04)
Nieves, Leidy Johana Jaramillo
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Melchiades, Fábio Gomes
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https://lattes.cnpq.br/4469106561041487
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Boschi, Anselmo Ortega
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https://lattes.cnpq.br/3259846931278607
Nowadays Brazil is the second largest producer and consumer of ceramic tiles in the world. In the process of tile’s production, the decoration and glazing play a prominent role since they are responsible for technical and aesthetic properties of the product. Ceramic tile decoration underwent a revolution with the arrival of ink-jet technology. This technology has also started to become a focus of interest for glazing, creating the possibility of having a completely digital line in the manufacture processing. Accordingly, glazes must be adapted to requirements of this new technology. Among them, the particle size of the suspensions employed in the ink jet technology should be lower than that used in traditional glazes. In this context, this project evaluates the effect of the average particle size reduction on the properties of glazes, from their preparation, application, sintering and final product. The methodology of the project consisted in using an industrial frit applied to transparent glazes. The frit was ground to obtain four different granulometry particle sizes for the preparation of glazes. The materials were characterized by rheological analysis, applied layer and their interaction with digital inks. Finally, the sintering process and the characteristics of the fired product were monitored. The study showed that the main effect of the decrease in particle size was on the particle size distribution curve, which affected the packing of particles and this, in turn, affects the pore structure which affects the packing of the suspension, That is, rheological behavior and the characteristics of the applied layer of the glazes, showing that changes in the applied layer affected the subsequent stage as the decoration and the firing.