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Fotossensibilizadores no controle de larvas do Aedes aegypti (Diptera : Culicidae)
(Universidade Federal de São Carlos, 2015-08-31)
Souza, Larissa Marila de
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Kurachi, Cristina
;
https://lattes.cnpq.br/0194007981724312
;
Bagnato, Vanderlei Salvador
;
https://lattes.cnpq.br/4947860249518663
The Aedes aegypti mosquito is the main responsible for the transmission of dengue. Among numerous alternatives to combat vector, we can cite the use of photosensitizers (PSs) as inactivating of Aedes aegypti larvae. These compounds are able to interact with the light in a specific wavelength, so the cause highly reactive cytotoxic oxygen, resulting in the oxidation of biological targets. The present study had as main objective to analyze the phototoxic effects of PSs: Photogem® and turmeric, in three molecular variations (curcumin, curcuminoids pigment mixture (curcumin, desmethoxycurcumin and bisdemethoxycurcumin) and curcumin in sucrose), against Aedes aegypti larvae under different conditions of delivery of the PSs and lighting. The experiments of this study were divided into two stages: i) Photogem® and the three compositions of turmeric were applied in trials of photodynamic inactivation (PDI) in solution. The groups that received the Photogem®, were also fed with two different types of food, in order to verify the influence of these foods on larval mortality. ii) in a second step the three compositions of turmeric were incorporated in pet food, where it obtained a lyophilized powder, which was subsequently offered to the larvae for scanning. After the receipt of the PSs in solution as in the form of freeze-dried powder, the larvae were irradiated with two sources of light: artificial and natural. In addition to the trials of mortality, other studies were performed, such as checking the time of degradation of PSs when exposed to light, the anatomical location of accumulation of FSs in the larvae, and characterization studies of the product obtained in the form of lyophilized powder. On PDI with the Photogem® comparing the foods, exposed to artificial lighting, one of the foods introduced a higher mortality, indicating the importance of this on effectiveness of PDI. Already on PDI with variations of turmeric, mortality rates varied according to the molecular forms of this compound, showing high mortality for curcumin and curcumin in sucrose. In conditions involving sunlight, high mortality rates were obtained for all FSs delivered solution, featuring in various conditions 100% mortality in 8 hours from exposure to light. For IFD using the freeze-dried powder of three variations of turmeric and sunlight, mortalities in the order of 80% were achieved in lighting 16 hours. The analysis of the fluorescence image obtained by confocal microscope showed that both the three variations of turmeric, such as Photogem®, after an incubation period of 12 hours, accumulated throughout the alimentary canal of the larvae. The Photogem®, as well as turmeric showed potent photodynamic activity being more effective in conditions with higher light intensities. Regarding the delivery conditions of the PS, we observe that the highest values of mortality were obtained through the application of PSs in solution, when compared with the mortality studies using the freeze-dried powder. These results indicate that PDI can be a promising technique in the control of vectors as the Aedes aegypti.
Saberes tácitos na colheita manual do tomate: estudo de caso a partir da perspectiva da ergonomia
(Universidade Federal de São Carlos, 2015-08-31)
Silva, Fabiana Raulino da
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Fontes, Andréa Regina Martins
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https://lattes.cnpq.br/4848646681792317
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https://lattes.cnpq.br/7581031286080881
The variability in agricultural work makes it difficult to be described without considering the complexity of it. Workers in tomato harvesting make the selection of the fruit distinguishing which tomatoes are suitable for harvest, which are not matured yet and which should be discarded, identifying the causes of defects and irregularities. These workers know the quality parameters without having any formal training. This knowledge is fundamental to regulate the strategies of these workers and should be enriched. This research shows a two-year period of immersion in the context of agriculture along with these workers, in order to analyze the importance of tacit knowledge involved in agricultural practice, understanding how this knowledge acquired in practice serve as the basis for all practical labor. As methodology, our study used ergonomics to understand the work of tomato pickers and identify how their knowledge guide the selection of the fruit for harvest. A multiple case study was conducted in three farms through the perspective of ergonomics. We used free observations through semi-structured interview and analysis of the speeches of workers to identify how this knowledge is transmitted and its importance. Our results show that workers must build a mental map, a reference in their mind of how a proper fruit look alike to be harvested. This representation brings several sensorial information that make them choose the fruit through its various features. Even without having received any formal training, the features identified in the fruit are the same listed in formal classification documents. It was noticed that although tacit knowledge is difficult to verbalize, women were able to express in a wider range of words the characteristics of the fruit that guided their actions. Learning of workers is intrinsically related to existing cooperation at work, as they teach each other in mutual aid during the execution of the harvest. For future work, we suggest other studies from ergonomics perspective, suggesting a work transformation to facilitate the sharing of knowledge of these workers.
Sementes orgânicas : regulamentação, políticas públicas, produção comercial e uso de sementes locais em estabelecimentos certificados
(Universidade Federal de São Carlos, 2015-08-31)
Parra Filho, Antonio Carlos Mendes
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Jovchelevich, Pedro
;
https://lattes.cnpq.br/9792841909904436
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Norder, Luiz Antonio Cabello
;
https://lattes.cnpq.br/0080353709980071
The seed is the first link in the food production chain. In this context, the use of appropriate seeds and seedlings in organic production can be understood as, more than a legal or philosophical question, a technical strategy to better results in organic production. The objectives of this study were: contextualize, analyze and interpret the seed laws, public policies related to local seeds; analyze the standards related to the use of seed in organic production in Brazil; the commercial production of organic seeds in Brazil by the private sector, public sector and third sector; and the use of local seeds by certified establishments. The Brazilian regulations preserved the primary rights of traditional farmers and communities regarding the use and local seed multiplication. Thus, the National Plan for Organic Production and Agroecology (Planapo) gathered some public policies that were based on those rights. Brazilian regulations allowed the use of conventional seeds and seedlings in organic production while there is no supply of organic seeds in the formal market. This is an indicative of the conventionalization process. Commercial production of organic seeds was more significant among third sector organizations linked to family farmers and philosophical currents, which were identified as the pioneers of the organic agriculture movement. Thus, we also see the greatest indexes of local seeds use among organizations of the third sector and family farms.
Agentes mineralizadores e seus efeitos nas características morfológicas e físico-químicas de aluminas calcinadas
(Universidade Federal de São Carlos, 2015-08-31)
Oliveira, Daniela Riello Gomes de
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Pandolfelli, Victor Carlos
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https://lattes.cnpq.br/7369376873984839
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https://lattes.cnpq.br/8034337197861293
Calcination is an important step in the alumina production process, affecting the final properties of the resulting powder and the attained product. Over the previous decades, attempts have been conducted to understand this process aiming to decrease the calcination temperature and time, additionally to the improvement of the alumina properties. In this sense, the use of additives is promising as these mineralizers, like fluorides, act decreasing the transformation temperature from the transition alumina to the alpha phase. In this context, this study addressed the understanding of the influence of three different additives (solid fluoride, soluble fluoride and seeds) on the properties of the calcined alumina, considering the actual condition of the industry and focusing in technical aspects such as morphology, surface area, primary crystal size, alpha content and the soda decrease. There are several theories about the working reaction of these additives, however, no experimental procedure was carried out to prove those mechanisms. In this work, the AlF3 and the soluble fluoride's mechanism reaction were investigated by using DTA-TG-MS techniques. The results showed that the presence of fluoride in transition aluminas leads to the generation of gaseous compounds which are responsible for speeding up the mass transportation, thus, decreasing the temperature and energy required for obtaining the alpha phase. These mineralizers also influenced the alumina properties, such as an increase in the primary crystal size and a decrease in the surface area. The optimum properties can be attained by the right balance between temperature and mineralizer content. Other additives sources, such as NH4Cl, can be used for decreasing the soda content. This work highlights that their efficiency is directly related to a suitable gas confinement inside of the calciner.
Estudo de algoritmos para a determinação da temperatura de fusão
(Universidade Federal de São Carlos, 2015-08-31)
Michelin, José Vitor
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Rino, José Pedro
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https://lattes.cnpq.br/6801067322823031
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https://lattes.cnpq.br/4394314973749403
In this work, we studied the main methods used in molecular dynamics simulations to obtain the melting temperature of crystalline materials. The methods evaluated were the solid-liquid coexistence, mechanical melt of bulk, melt with surfaces, Lindemann criterion and the method of hysteresis. The potential that we used were the Lennard- Jones for argon, the Embedded Atom Method for copper, the potential of Born-Mayer-Huggins for sodium chloride and the potential of Stillinger-Weber, Modified Embedded Atom Method and EDIP for silicon. We perform all simulations in NPT ensemble and obtained results with good agreement with literature. Some method showed better performance for specific types materials, as in the case of surface melt for copper. The method hysteresis showed fantastic results, proving to be a good alternative to traditional methods to obtain the melting temperature, as the phase coexistence. The results showed that the choice of appropriate interaction potential is a highly determining factor for obtaining good results for studying the properties of interest.
Desenvolvimento de nanocompósitos poliamida 11 / dióxido de titânio para aplicação na indústria petrolífera
(Universidade Federal de São Carlos, 2015-08-31)
Balarim, Caio Vinicius Morisco
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Hage Junior, Elias
;
https://lattes.cnpq.br/1240692926327687
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Ambrósio, José Donato
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https://lattes.cnpq.br/9470914895315270
The depth at which explores offshore oil grew abruptly, forcing the advancement of technology in relation to the knowledge acquired so far. For the risers operating conditions, subject to internal relatively low pressures, but exposed to high traction levels, the failure of the tensile armor connection due to disruption of the outer plastic layer has been appointed as the main failure mode to be investigated. The breakdown of protective layers allows the passage of corrosive solutions (gas and sea water) into the duct, accelerating the degradation process by the combination of factors associated with fatigue and corrosion. As a result, the verification of useful life of these risers is becoming increasingly important, justifying the development of reliable methods of inspection and high technologies that increase the estimated life of the components. In this study, the effects of the surface chemical modification of titanium dioxide (TiO2) nanoparticles and their addition into polyamide 11 (PA11) on the mechanical, dynamic-mechanical, and tribological properties of PA11/TiO2 nanocomposites were investigated, aiming the use in the outer plastic layer of offshore risers. The nanoparticles were incorporated by means of two different processes: by extrusion and by internal mixer Haake. The results led to the conclusion that the incorporation of titanium dioxide nanoparticles (TiO2) in a polyamide 11 (PA11) matrix has promising application potential in increasing the life cycle of the outer layer, especially with regard to increased the wear resistance. However, this conclusion is valid only if an appropriate dispersive and distributive mixing is obtained, since the differences between modified and non-modified composites are more strongly influenced by the dispersion of load than by the chemical compatibility between the PA 11 matrix and the modifier.
Análise das variáveis ambientais causadas pelas mudanças dos usos e cobertura da terra do município de São Carlos, São Paulo, Brasil
(Universidade Federal de São Carlos, 2015-08-31)
Trevisan, Diego Peruchi
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Moschini, Luiz Eduardo
;
https://lattes.cnpq.br/2728357583462262
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https://lattes.cnpq.br/2413871825446601
Anthropogenic impacts tend to simplify natural ecosystems, reducing the inherent resistance to change and breaking their resilience thresholds in more than one place at a time. Such interference in the landscape converts extensive and continuous areas of forest cover in forest fragments, affecting the availability and quality of natural resources. It is essential to analyze the municipality in its local and regional geographical context as well as the study of typically urban and agricultural structures, aiming at establishing forms of growth and consolidation consistent with sustainable development goals. Given these considerations, this study aimed to obtain landscape information in the Brazilian city of São Carlos (SP) using landscape structural indices. Data were entered and analyzed in Geographic Information Systems (GIS). Landscape structure was evaluated using dynamic and municipal land cover in 2003 and 2013 as well as applying the Urbanity Index. The Index of Landscape Fragility assessed environmental fragility of the city's landscape. The Environmental Quality Vegetation Index identified and analyzed susceptibility to the effects of ecological components of a particular human activity. The Environmental Quality Index of Water Resources assessed susceptibility of water resources in relation to distance of impact sources. The Vulnerability Index assessed landscape susceptibility due to loss of biodiversity and habitats resulting from fragmentation of native vegetation class. Results showed that direct and indirect forces of change acting on landscape are respectively agricultural activities, mainly correlated to sugarcane cultivation. From 2003 to 2013, there was an increase in the areas occupied by human activities and consequently the reduction of natural areas and loss landscape’s environmental quality with resulting increased fragility as environmental vulnerability. Current developmental trajectories cannot occur without causing impacts, but are not providing benefits the way they should. Loss and degradation of areas of natural vegetation remaining in São Carlos municipality landscape continue growing way. However, the available evidence suggests that the continuation of these fragments in landscape can still provide more economical benefits than those obtained from the conversion and agricultural expansion of land use. The current stage of the city is not the only concern, but also trends – such as the loss of natural areas with increases of anthropogenic uses that solidify over the years, and are discussed in the analysis of the remaining vegetation in the city. The current growth model and generation of impacts are not carried out in favor of the need for concrete development of the city as a whole, but only of certain activities and sectors present in it.
Fator inibitório da migração de macrófagos : envolvimento na regulação cardiovascular em ratos com hipertensão renal
(Universidade Federal de São Carlos, 2015-08-31)
Barbosa, Rafaela Moreira
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Colombari, Débora Simões de Almeida
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https://lattes.cnpq.br/1684467594359403
;
https://lattes.cnpq.br/0228395782582283
The high blood pressure levels reach about 22% of the world population, increasing the risk factors for coronary disease, heart attack and heart failure. Many studies have tried to understand the causes of hypertension and possible mechanisms to facilitate the treatment of hypertension. The central nervous system seems to play a key role in the development and maintenance of hypertension. Among the various brain areas, we can highlight the role of the nucleus of the solitary tract (NTS), which is the primary site of visceral afferents. The macrophage migration inhibitory factor (MIF) is an intracellular inhibitory regulator of the actions of angiotensin II (ANG II) in the ANG II type 1 receptors. The spontaneously hypertensive rats (SHRs) and the rats with renovascular hypertension 2 kidney, 1 clip (2K1C) exhibit an increased activity of the renin-angiotensin system, increased sympathetic activity and reduced baroreflex function. We recently demonstrated that MIF overexpression in the NTS of SHRs lowers blood pressure of these animals and improved the function of the baroreflex. Therefore, in this study we tested if increased expression of MIF in the NTS of the 2K1C rats could alter the development of hypertension and improve the baroreflex function in these animals. For this, the left renal artery was partially obstructed in male Holtzman rats (150-180 g) using a silver clip (0.2 mm width) to induce 2K1C hypertension (n = 5-10/group) or sham surgery [normotensive rats (NT); n = 5-11/group] was performed. Three weeks after renal clip placement or sham surgery, rats received AAV2-CBA-MIF microinjections into the NTS to increase MIF expression in the area or AAV2-CBA-eGFP, which promoted the expression of GFP (enhanced green protein), which served as a control vector. Arterial pressure and heart rate were recorded by telemetry and baroreflex tests were performed. At the end of the experiments, the brains were harvested for immunohistochemistry RT-PCR. MIF injections into the NTS attenuated the hypertension in 2K1C rats from 2 weeks after viral transfection until the end of the experiment (4 weeks after viral transfection), (2K1C-MIF: 145 ± 7, vs. 2K1C-eGFP: 176 ± 9 mmHg; p < 0.05). MIF into the NTS also improved the reflex bradycardia (2K1C-MIF slope: -1.4 ± 0.3, vs. 2K1C-eGPF slope: -0.41 ± 0.3 bpm/mmHg; p < 0.05) and reflex tachycardia (2K1C-MIF slope: -4.7 ± 0.6, vs. 2K1C-eGPF slope: -1.7 ± 0.3 bpm/mmHg; p < 0.05). Baseline heart rate was decreased in 2K1C-MIF rats. In contrast to 2K1C rats, MIF overexpressed in the NTS in normotensive rats produced no change in arterial pressure neither baroreflex function. As expected, the transduction of MIF in the NTS increased mRNA levels for MIF at the same site (NT-MIF: 3.80 ± 0.97, vs. NT-eGFP: 1.00 ± 0.16 fold change and 2K1C-MIF: 3.53 ± 0.68, vs. 2K1C-eGFP: 0.88 ± 0.09 fold change; p < 0.05). These results suggest that increased expression of MIF in neurons within NTS attenuates the hypertension and improves baroreflex function in 2K1C rats, possibly through anti-ANG II actions.
O vampiro literário africano em língua portuguesa : uma leitura de contos de Ana Paula Tavares e José Eduardo Agualusa
(Universidade Federal de São Carlos, 2015-09-01)
Santos, Thiago Rodrigo dos
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Valentim, Jorge Vicente
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https://lattes.cnpq.br/4427303771174064
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https://lattes.cnpq.br/3506976477334729
This thesis aims to study the case of representations of the literary vampire, articulating some thoughts around their first appearances in the cultural landscape of the Eighteenth Century, spreading across three important texts of the Nineteenth Century by the novelists Polidori, Le Fanu and Stoker. Such imagetic settings are an important step for the study of the two cases of vampire characters in African Portuguese literatures: "O mistério da Rua da Missão", by Ana Paula Tavares, and "M. de Malaria",by José Eduardo Agualusa. Situated within contemporary Angolan literary scene, we will do an approach of these texts wich point a contextual coherence of its protagonists with the postcolonial aesthetic proposals.
O movimento negro e a cultura política no Brasil (1978-1988) : o caso de São Paulo
(Universidade Federal de São Carlos, 2015-09-02)
Andrade, Luiz Fernando Costa de
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Silvério, Valter Roberto
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https://lattes.cnpq.br/9421231847055027
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https://lattes.cnpq.br/7793155028242658
Elites legislativas comparadas : Caraguatatuba, São Sebastião e Ubatuba
(Universidade Federal de São Carlos, 2015-09-02)
Souza, Samuel Candido de
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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/1407082138098452
This research analyzes comparatively the social profile of council members from the cities of Caraguatatuba, São Sebastião and Ubatuba, located on the north coast of São Paulo, in the period that includes the 2000, 2004 and 2008 elections, with the aim of verify what the similarities and differences in the local political elite. Considering that cities have similar socioeconomic characteristics, the profile of political elite will be similar as well. The hypothesis is based on the assumption that the social, economic and institutional characteristics impose certain conditions for entry and success in the political field, compelling politicians to acquire certain types of capital, this favoring the recruitment in the social strata that have greater possibilities to acquire such capital, constituting a particular social profile of political elite. The professional category was the main feature of political agents to be compared by allowing us to identify the social insertion of politicians. The analysis found that there are many similarities in the political elite of the cities, and the few differences are explained by the particular way that each city fits into the regional economy.
Modelagem de dados de sobrevivência com eventos recorrentes via fragilidade discreta
(Universidade Federal de São Carlos, 2015-09-02)
Macera, Márcia Aparecida Centanin
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Cancho, Vicente Garibay
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https://lattes.cnpq.br/3503233632044163
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Louzada Neto, Francisco
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https://lattes.cnpq.br/0994050156415890
In this thesis it is proposed alternative methodologies and extensions on models for recurrent event data. Speci cally, we propose a model in which the distribution of the gap time is easily derived from the marginal rate function providing more direct practical interpretation besides to consider the relation between successive gap times for each individual. Another model that extends the frailty models for recurrent event data to allow a Bernoulli, Geometric, Poisson, Discrete Weibull, Negative Binomial or other discrete distribution of the frailty variable has also been proposed. The parameter estimation procedure for both models was conducted considering maximum likelihood methods. Simulation studies were performed in order to examine some frequentist properties of the estimation method and evaluate the maximum likelihood estimates quality. Real data applications demonstrated the use of the proposed models. Overall, the proposed models were suitable for analyzing recurrent event data.
Da racialização a etnicização : a construção de um complexo posicionar-se
(Universidade Federal de São Carlos, 2015-09-02)
Flor, Cauê Gomes
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Silvério, Valter Roberto
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https://lattes.cnpq.br/9421231847055027
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https://lattes.cnpq.br/4557982568388268
Since 2004 the city of Lins (São Paulo) receives proportionately the largest flow of African students in São Paulo. Early in our research had about 140 students from the Portuguese Speaking Countries (PALOP): Angola, Cape Verde, Sao Tome & Principe, Mozambique and Guinea Bissau. There they live and study at the University Center of Lins (Unilins). However, are overweight young people from Angola, about 120, are the only ones who are enunciated as Angolan community. By stating this discourse, African students tout and negotiate a set of representations, state differences and promote identification processes. Thus, this work aims specifically foregrounding the experiences of these young Angolan students in Brazilian society. That there is an ethnic character positioning played by students is, and this is the hypothesis of this study, enrolled assignment expression of blackness, historical and daily to people of African descent in their collective experience. In other words, students in their stay in Brazil undergo a process of racialization. And, in response to this denial produced by a process ethnization a positioning. Which in turn articulates intersected way these two sociological divisions (race and ethnicity). Thus, as important as the intersection and articulation of these two divisions, the form, the process, the "how" students perform this agency and negotiation is critical. You know how, in what way these students are building through complex cultural processes of identity and difference figures. From this derives the following specific objectives, though no less important: i) how and why Brazil is presented as a destination for these students? ii.) As the Angolan students perceive themselves in front of the Brazilian social formation? For if on the one hand, the particulars used to identify contribute to better understand their narratives about tensions and difficulties they experience in this new socio-cultural context; on the other, the choice of Brazil as a privileged destination for these young people is closely linked to the relations that Brazil has with Angola and other countries of Palop.
Abordagem RPN para a recuperação de processos de negócio baseada na análise estática do código fonte
(Universidade Federal de São Carlos, 2015-09-02)
Rabelo, Luiz Alexandre Pacini
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Prado, Antonio Francisco do
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https://lattes.cnpq.br/2668568143800755
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https://lattes.cnpq.br/6467138201435338
Over time, Business Processes have become a key asset for organizations since it allows managing what happens within their environments. It is possible to automate some activities of business processes resorting to the use of Information Systems and accordingly decrease the execution time and increase the production. However, Information systems often suffer maintenance over time and become obsolete in their technologies and a reengineering process becomes necessary. In this case, the Business Knowledge, located more accurately the reality in information system source code, should be mantained. Thereof, in this work, we propose an Approach to support the Business Process Recovery from Source Code. The approach, entitled RPN, uses a static analysis technique of source code because it allows to analyze the source code without the need to modify and run the information system source code. Furthermore, the approach uses the Knowledge Discovery Metamodel (KDM) standard with a set of Heuristic rules to identify relevant code elements to the business layer. As result, Business Process Models are generated according to Business Process Model and Notation (BPMN) standard specification. This models, together with other software artifacts, provide more subsidies to the Software Reengineering process. To evaluate the proposed approach, a case study was performed in Academic Domain to measure the effectiveness of the approach compared to the other approaches and the manual process. The results exceeded expectations and prove that the approach is effective.
“Por que Fanon? Por que agora?”: Frantz Fanon e os fanonismos no Brasil
(Universidade Federal de São Carlos, 2015-09-03)
Faustino, Deivison Mendes
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Silvério, Valter Roberto
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https://lattes.cnpq.br/9421231847055027
;
https://lattes.cnpq.br/1381425552378145
This paper discusses the different ways, uses and appropriations of the thought of Frantz Fanon in Brazil between the 1950s and the present day. The study approaches Wynter (1999) and Gordon (2015) to identify the perspective of sociogenesis the structural axis of fanoniano theoretical status, and Hall (1996) and Sekyi-Otu (1996) to recognize the author's thought the open joint and not completed theoretical and various political elements. From this evidence, it argues that the legacy of Fanon is claimed differently by different theoretical aspects, and sometimes conflicting. In Brazil, the reception of Fanon occurred under the influence of the third Worldism revolutionary and its focus on Les Damnés de la terre. Providing both the players connected to the left as readers more attuned to the black movement, a guided appropriation the polarization between colonizer and colonized and affirmation of identity (national or black) as opposed to colonization. But the contemporary period, marked by a growing interest in the reflections of Fanon, is structured by a greater diversity of approaches and theoretical focus, setting six sub-fields: 1.Estudos Postcolonial and the Diaspora; 2. Negritude; 3. Decolonial; 4. Whiteness; 5. Psychology; 6. National Ethos.
Aprendendo a ensinar : as narrativas autobiográficas no processo de vir a ser professora
(Universidade Federal de São Carlos, 2015-09-03)
Martins, Rosana Maria
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Oliveira, Rosa Maria Moraes Anunciato de
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https://lattes.cnpq.br/3064136997342775
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https://lattes.cnpq.br/0099631864718875
The current research lies in the discussions about teacher training in collaborative context which involves online learning communities, specifically in the constitution of the teaching identity of future teachers in the early years and the teaching insertion in the first year of professional career. For its development, it started with production readings which advocate that training must contemplate, through the lived and narrated experiences, situations of reflection and questioning the historical, social and political contexts in which they were and are forming teachers, providing discussions of certain practices and projecting to others, in an interwoven process of the histories, knowledge, processes and rituals. Among several education training courses that propose to support the professional development of primary school teachers, at different phases of their lecturer career, with the auxiliary of experienced professionals from public schools and university, lies in the Teacher Gateway of the Federal University of São Carlos (UFSCar), the online extension course - 2013 which is linked to this doctoral thesis. The course-titled "Narratives of Education in Mathematics and Portuguese Language - 2013" and it was developed in an online learning community, via the internet. The purpose of the course privileged collaboration among peers, questioning, reflection, research, educational planning and collaboration through narratives about the own process of the undergraduates training in Pedagogy, focused on meaningful experiences of schooling, training, especially with the Portuguese Language and Mathematics disciplines. Participants selected for the course are undergraduating women in the last year of Pedagogy and teachers up to three years teaching experience. It consists itself in a study centered on the investigations about the self-written - with the narratives of education and professional narratives - , as a practice teacher training. This is the research scene which seeks to understand how the undergraduate women, still in beginning education, signaling in their autobiographical narratives, the evidence of the constitution of the teaching identity and its unfoldments in professional practice that begins, especially the learning built in an online learning community. The interpretative-comprehensive analysis of education narratives, aim at that learning in an online learning community were significant, give place to new experiences that emerge in the own live, doing and experiment. The results indicate that the online extension course - 2013 led collaborative moments set out in online forums; construction of knowledge about teaching and being a teacher as fundamental attitudes of the educational process; deepening of the reflection process on their own stories; practice records on experiences; sharing with peers pedagogical practices developed at school. These and other learnings enabled the constuction of the artifact of scholarship. The study of autobiographical narratives produced and discussed in an online learning community, showed how this process contribuites to the constituition of the teaching professional identity and professional development that reveal themselves in constant tension on a continuum.
Programação na televisão pública : uma análise da TV Brasil
(Universidade Federal de São Carlos, 2015-09-03)
Severino, Tiago Nunes
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Paiva, Samuel José Holanda de
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https://lattes.cnpq.br/7222933274927263
;
https://lattes.cnpq.br/1365205079065405
This research is an analysis of TV Brasil’s schedule. The channel belongs to the Brazil Communications Company (EBC), which began to be broadcasted in December 2007. Its creation is the result of a project by the Ministry of Culture, Communications, the Department of Social Communication of the Presidency and civil society entities. TV Brasil’s scheme counted on debates in the National Forum on Public TV and also in the political field, as the Brazilian Congress. From these aspects, the research seeks to understand how a political project is reflected in a program schedule. The methodological approach requires an understanding of a television program schedule’s formatting mode, according to Jost (2007), Mittel (2004) and Wolton (1996), and also by factors that guide the scheduling of a public TV from observing examples, such as England’s BBC, and Chile’s TVN. Historicizing the time of TV Brasil’s creation allow us to view its project and intentions around its various spheres. With this is possible to observe the schedule with a wider look. It was found that the channel's debut in December 2007 happened abruptly and aimed to give a boost to the conversion into law of the Provisional Measure 398, which created the EBC. In terms of flow, the analysis of schedule shows that TV Brazil is a “geralista” TV station, which practice the “paleotelevisão” model and has a joint programmatic profile, among other aspects, the idea of complementary programs than is broadcasted in the private system and focused, mainly, for social minorities.
Uma análise sobre créditos e os controles do Banco Central no Brasil entre 2007 e 2015
(Universidade Federal de São Carlos, 2015-09-04)
Kluth, Fabian
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Rodrigues, Rodrigo Vilela
;
https://lattes.cnpq.br/7066100737307566
;
https://lattes.cnpq.br/5212532876353136
In considering the evolution of credit and rising inflationary pressure observed in Brazil between 2007 and 2015 this research investigates how the Central Bank of Brazil, given its goal of inflation targeting, acted in providing reserves to support the observed credit growth in recent years. The econometric method used for analysis consisted of applying Granger causality tests using data from the Central Bank of Brazil. We conclude that the amount of money were defined by demand and had no impact on the determination of the nominal product. The central bank, in turn, provided the necessary reserves in accordance to the volume of deposits. Together, these results provide support to the notion of endogenous money supply in the period.
Relação da estrutura da paisagem mosaico Carajás, PA com a ocorrência de Anodorlynchus hyacinthinus (arara-azul-grade)
(Universidade Federal de São Carlos, 2015-09-04)
Conrado, Ludmila Pereira
;
Valente, Roberta Averna
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https://lattes.cnpq.br/1582627535733911
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https://lattes.cnpq.br/4212904334696001
In Brazil, there are about 6,500 individuals of Anodorhynchus hyacinthinus (Hyacinth macaw) in wild, located in three physiognomically distinct regions. The specie is demanding as to breeding habitat, and can be regarded as feeding specialist. Currently, the species is endangered because the reduction of their originally habitat, as consequence of the disorderly process of land occupation. This process, broadly, causes negative effects on landscape, in particular the remaining native forest vegetation. In this context, the study aimed to evaluate the occurrence of Hyacinth macaw in mosaic Carajás landscape, considering the intrinsic characteristics of the landscape structure and biology of this species. We considered three regions of the Carajás mosaic: R1- Itacaiúnas river, R2-FLONA Itacaiúnas and, R3 - Canaã dos Carajás. The sampling of Hyacinth macaw was done through direct observation and calculated the frequency records for R1 (1.26 region/hour), R2 (0.38 reg./hour) and R3 (0.44 reg. /hour), and after, was estimated area of life for each region (R1 = 22187.87 ha; R2= 66397.0ha, R3 = 41841.2ha). We made the land-use/land-cover map to support evaluation of the landscape, through unsupervised classification of satellite images. The final map was reclassified two classes: forest and non-forest. The follow landscape metrics were calculated: distance between fragments (R2 = 499 m; R3 = 364m), midsize (R2 = 148,5ha; R3 = 10,6ha), the size of the largest fragment (R2 = 39.360,8ha; R3 = 888,1ha), and number of fragments (R2 = 337, R3 = 863). From the results, we can said that forested areas with riparian vegetation presence appear to be more propitious to Hyacinth macaw occurrence in the mosaic Carajás, Pará, Brazil, but the preference for open areas is not ruled out. Furthermore, the species occupy different degraded patterns landscape, because there is a large displacement capacity and proximity to the mosaic. Atropism and interaction with other species, such as red macaws may be other factors that affect the distribution of species in the Carajás region.
Relação entre os métodos de síntese de precursores particulados ferroicos e a obtenção de compósitos magnetoelétricos texturados
(Universidade Federal de São Carlos, 2015-09-04)
Paranhos, Rafael Rodrigo Garofalo
;
Garcia, Ducinei
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https://lattes.cnpq.br/5236758856687873
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https://lattes.cnpq.br/4310999203376154
This study analyses the relationships between synthesis routes and physical properties of the composite system 67.5(PbMg1/3Nb2/3O3) +32.5(PbTiO3), or simply PMN-PT, as ferroelectric phase and BaFe12O19, or BaM, as magnetic phase. The choice of phases was based on the exceptional properties that both PMN-PT and BaM possess: solid solutions of the complex perovskite PMN-PT in both monocrystalline and polycrystalline forms, particularly those whose composition lies within the region of morphotropic boundary phases, have the largest known piezoelectric coefficients. BaM, or barium hexaferrite, presents relatively high property anisotropy due to its hexagonal crystal structure (expressed in particles that grow in nonequiaxed format) and easy magnetization along the c-Crystallographic axis. Thus, the main objective of this work was to obtain and characterize magnetoelectric composites (either volumetric or as two-dimensional nanostructures) textured from PMN-PT/BaM, by exploiting the quasi-piezomagnectic characteristics and the microstructural, crystallographic and magnetic anisotropyof the BaM phase. With a molar ratio of 80/20 between the ferroelectric and magnetic phases, different routes of synthesis and processing were used for the production of threedimensional ceramic composites with 0-3 connectivity, or thin films with 0-3 and 2-2 connectivity.The Pechini, sol-gel, co-precipitation,and solid state reaction techniques were applied for the synthesis of powders and/or solutions; the pressure-assisted sintering method was used for the densification of three-dimensional bodies; and the spin-coating technique was employed for the deposition of films. Physical, electrical, magnetic and magnetoelectric characterizations were performed in order to clarify the influence of the BaM phase upon composites of different configurations. In a prospective yet not exhaustive manner, relations were assessed among the experimental parameters of the various synthesis routes (with greater focus on the barium hexaferrite phase) and the production of ceramic composites of PMNPT/ BaM system. It was found that the final characteristics of the prepared materials, particularly the hysteresis behavior of the magnetoelectric coefficient as a function of applied magnetic field, were highly susceptible to variations in the morphology, size and orientation of barium hexaferrite grains, which, in turn, depended on the synthesis and sintering routes applied.