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Estudo comparativo entre a aplicação do novo regime diferenciado de contratações (RDC) e a lei de licitações no âmbito da Universidade Federal De São Carlos - UFSCar
(Universidade Federal de São Carlos, 2016-09-15)
Vasco, Elicio Pedro Cantero
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Martins, Manoel Fernando
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https://lattes.cnpq.br/3921504261628850
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https://lattes.cnpq.br/0202921620989703
One of the most important activities and that is increasingly gaining importance in recent years, among the various activities undertaken by the public authorities is on the shopping area. The bidding is an administrative procedure in which aims to select, according to predetermined objective criteria, the most advantageous hiring proposal to the government. In this process should be ensured broad participation of stakeholders, as well as equal treatment, always permeated with the legal requirements. Law n. 8.666 / 93, the General Law of Tenders and Administrative Contracts, establishes all the legal system for public procurement. The Differentiated Regime Hiring - DRC - is permeated by several goals, innovative in relation to the rules established by Law 8.666 / 93. UFSCar has adopted this regiment in their hiring process works and engineering services since 2013. The main objective of this work is to promote a comparative study between the Differentiated Regime Signings, DRC and Competition mode, governed by Law n. 8666/93 regarding the efficient procurement of works and engineering services within the UFSCar. For that was used in the methodological procedure descriptive and exploratory research through two approaches: quantitative and qualitative. The first approach corresponded to the comparative analysis, obtained by hiring historical data from the modality competition, the years 2011, 2012 and 2013, and DRC mode the years 2013, 2014 and 2015, coming from the reports of the Purchasing Department - Decom / UFSCar and Comprasgovernamental. They were established some indicators whose purpose was to measure the efficiency of the new procurement regime in relation to the mode set by competition. The qualitative approach was used to analyze the perceptions of representatives of the units that are closely linked to the bidding process under the UFSCar. The main results show that there are many perspectives introduced by the DRC, of which some have already been implemented in the bidding process for procurement of works and engineering services in this federal public education institution. Among the challenges are the various requirements, legal, technical, economic, financial and regularity with which the government by constitutional and legal provisions, is obliged to demand.. It was found that there are many drivers listed in DRC of which is an instrument capable of providing more agile, economical and efficient procurement ways, especially compared to the competition mode. On the other hand, being a relatively new law, the DRC still lacks depth studies that aim to remedy many of the doubts in its various devices and mechanisms. These factors can be mitigated through exchange of experiences with other organizations that also use the DRC in order to refine and improve its use at the university.
Hiperamonemia ativa HIF-1α pela via NF-kB : um possível mecanismo de sarcopenia em cirrose
(Universidade Federal de São Carlos, 2016-09-15)
Silva, Rafaella Nascimento e
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Dasarathy, Srinivasan
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Leal, Ângela Merice de Oliveira
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https://lattes.cnpq.br/7202663545989206
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https://lattes.cnpq.br/4084501298442515
Hyperammonemia impairs skeletal muscle protein synthesis and induces autophagy by upregulating myostatin via nuclear factor-kappaB (NF-kB). Skeletal muscle ammonia metabolism occurs via synthesis of glutamate and glutamine via critical TCA intermediate α-KG, that regulates increase expression of hypoxia inducible factor 1α (HIF-1α). Furthermore, there is a interaction between HIF-1α and NF-kB. Objective: This study evaluated the effects of hyperammonemia in NF-kB and HIF-1α cross-talking. Methods: To examine the effects of ammonium acetate intervention under HIF-1α signaling through NF-kB pathway it has generated a stable knockdown cell line for NFkB and the subunits α and β of the I kappa B kinase (IKK) complex (IKKα and IKKβ) evaluating the HIF-1α and myostatin activities. Results: The protein expression of HIF- 1α was significantly higher in C2C12 murine myotubes under ammonium acetate intervention compared to control. Once the deletion of NF-kB, IKKα and IKKβ occurs, the HIF-1α is not expressed, suggesting a cross-talking between them. The protein expression of myostatin was significantly higher in C2C12 IKKα deletion under ammonium acetate intervention compared to C2C12 random suggesting that myostatin is not IKKα dependent. Conclusion: We conclude that hyperammonemia is a normoxemic activator of HIF-1α through NF-kB pathway that results in sarcopenia via up-regulation of myostatin expression.
Indicadores de desempenho para núcleos de inovação tecnológica a partir de experiências nacionais e internacionais
(Universidade Federal de São Carlos, 2016-09-16)
Bueno, Alexandre
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Torkomian, Ana Lúcia Vitale
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https://lattes.cnpq.br/2321084184622795
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https://lattes.cnpq.br/6407503018881551
The use of performance indicators can help in decision-making, the definition of strategic actions in the planning, scenario display (current and future) and the results of operations of Technological Innovation Nucleus. This study aims to define a set of performance indicators for the management of technology transfer offices in Brazil, to evaluate, monitor the development and evolution of their actions and accomplishments. Therefore, there was a review of literature on the subject and access to and knowledge of international practices of intellectual property management and technology transfer in universities , which allowed consideration of performance indicators found so far, and the identification other new again featured and updated based on the literature. Were subsequently validated by experts (researchers with publications in the field and qualified professionals who work directly in the management of the NIT) and then there was the application of performance indicators in Brazilian universities (case studies), with reference (for obtaining data) 2015 (alone) and accumulated in the last five years (2011-2015). The importance of the issue is justified by the possibility of using them to understand, assess and monitor the evolution of the university technology transfer process for the company. The study may have great value to understand the actions taken by the NIT, contribute to the formulation of public policies (internal and universities), with the creation of a favorable environment for synergy and cooperation with business, and finally as a process accountability to society (demonstrating the achievements of technological innovation nucleus). In the search results include of performance indicators that can be used by Brazilian universities, the results achieved by each NIT and comparison among them.
Diversidade de Curculionidae (Scolytinae, Platypodinae) e Bostrichidae em plantios de teca, Tectona grandis L.f., 1782, no Estado do Pará, Brasil
(Universidade Federal de São Carlos, 2016-09-16)
Ferreira, Carla Samara dos Santos
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Flechtmann, Carlos Alberto Hector
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https://lattes.cnpq.br/3751581397164912
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https://lattes.cnpq.br/3698292630023584
The teak wood is one of the most valuable in the world, creating interest among producers in its quality and great commercial value. In Brazil plantations are concentrated in the Midwest and North, and due to the increase in these exotic plantations, monitoring is necessary to learn about their insect diversity. In 2008 a program to monitor the quarantine pest Sinoxylon unidentatum (Coleoptera: Bostrichidae) in Tectona grandis was started in the state of Pará, Brazil, because of the proximity to the state of Mato Grosso, area of occurrence of this pest. The general objective of this research was to monitor S. unidentatum and other beetle borers in Canaã dos Carajás, Cumaru do Norte, Pau D’ Arco, Rio Maria, São Domingos do Araguaia and Ulianópolis. Our specific objectives were to determine the richness and diversity of Curculionidae (Scolytinae, Platypodinae) and Bostrichidae in these plantations, and to know if there was a seasonal variation for their most abundant species. Trappings were done biweekly with ethanol-baited flight intercept traps from June 2011 to April 2013, totaling 115 collections. We captured 10147 specimens of beetle borers, distributed in eight sub-tribes, and totaling 90 species. In Rio Maria we found the greatest diversity of beetles and in São Domingos do Araguaia the greatest richness. There was a predominance of Scolytinae of the sub-tribe Cryphalina, which probably develop in the understory or dry material above the soil. We trapped significantly more Bostrichidae and Hypothenemus during the dry season. Sinoxylon unidentatum, target species that started this research, was not detected.
Os Xikrin do Bacajá e a Usina Hidrelétrica de Belo Monte : uma crítica indígena à política dos brancos
(Universidade Federal de São Carlos, 2016-09-16)
Silva, Thais Regina Mantovanelli da
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Cohn, Clarice
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https://lattes.cnpq.br/1714080901123094
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https://lattes.cnpq.br/5107026474104676
The Xikrin Bacajá live "the era of impacts" since the resumption of the licensing process and construction of the hydroelectric plant of Belo Monte. Ngô beyêt is as they call the dam, "standing water, water locked" and expand the meaning of the term for "rotten water, dirty water, old water." In order to strengthen this image of Belo Monte, the thesis presents an ethnographic description of the Xikrin criticism regarding of the white policy in three of its elements: meeting, document, project. The negative elements of the white policy are treated analytically as artifacts being opposed to the forms of existence valued by Xikrin kukràdjà, Mẽbengôkre culture. The contrastive analysis, as well as an important methodological procedure was a widely used resource by Xikrin to express their criticism of the policy of the whites. The contrast images became argumentative form of the thesis, justifying its division into two parts. The analogy by contrast also aims to highlight the image that Xikrin wanted to convey to white of Belo Monte, as a collective of people who share correct and beautiful ways of acting and being in the world. Thus, the depreciation of the white policy will be presented from the appreciation of the Xikrin mode of existence, kukràdjà, the culture of Mẽbengôkre, emphasizing its importance summarily ignored by white of Belo Monte.
Treinamento resistido e reposição hormonal aumentam a atividade das metaloproteinases-2 e a qualidade de osso de ratas ovariectomizadas
(Universidade Federal de São Carlos, 2016-09-16)
Souza, Markus Vinicius Campos
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Perez, Sergio Eduardo de Andrade
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https://lattes.cnpq.br/9408953831211309
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https://lattes.cnpq.br/2989329210364477
Purpose: The aim of the present study was to investigate the influence of resistance training (RT) and hormone replacement (HR) on MMP-2 activity, biomechanical and physical properties bone of ovariectomized (OVX) rats. Methods: Sprague-Dawley female rats were grouped into six experimental groups (n = 11 per group): shamoperated sedentary (SHAM Sed), ovariectomized sedentary (OVX Sed), sham-operated resistance training (SHAM RT), ovariectomized resistance training (OVX RT),(OVX Sed-HR), and OVX RT-HR. HR groups received implanted silastic capsules with a 5% solution of 17β-estradiol (50 mg 17β-estradiol/ml of sunflower oil). In a 12-week RT period (27 sessions; 4–9 climbs) the animals climbed a 1.1 m vertical ladder with weights attached to their tails. Biomechanical and physical bone analyses were performed using a universal testing machine, and MMP-2 activity analysis was done by zymography. Results: Bone density and bone mineral content was higher in the RT and HR groups. The MMP-2 activity was higher in the RT and HR groups. The biomechanical analysis (stiffness, fracture load and maximum load) demonstrated better bone tissue quality in the RT associated with HR. Conclusion: The RT alone as well as when it is associated with HR was efficient in increasing MMP-2 activity, biomechanical and biophysical properties bone of ovariectomized rats.
Uma proposta lúdica com utilização do GeoGebra para o estudo de funções quadráticas e probabilidade geométrica
(Universidade Federal de São Carlos, 2016-09-17)
Canavezi, Leandro Souza
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Caetano, Paulo Antônio Silvani
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https://lattes.cnpq.br/0370219014539994
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https://lattes.cnpq.br/5857439107072866
This paper reports the idealization, planning, construction and implementation of activities for the study of quadratic functions and geometric probability for classes of 9th grade of elementary school. It also presents the analysis of the activities undertaken by pupils and conclusions about the proposed objectives and goals achieved. The main objective of the developed activities is to provide students a better learning content covered and issues through a playful approach, interactive and motivating. The specific objectives are to develop the ability to translate a mathematical problem in mathematical language, manipulate algebraic expressions, estimates and comparisons, develop mathematical knowledge as knowing how to express and calculate the area and perimeter of plane figures, calculating probabilities of random events, solve quadratic equations, plotting graphs of quadratic functions and manipulate the software or the GeoGebra application. For this we have created a game of darts adapted and activity sheets containing instructions, questions, tables, graphs, calculation exercises, optimization problems and graphic constructions scripts applied to GeoGebra. The methodology used was the Didactic Engineering. The activities were implemented in two classes of 9th grade of elementary school in two different schools, one class at a school in the municipal school of Bauru, São Paulo, and another class of a school in the state school system the city of Agudos, state of São Paulo. During the application were used 12 50-minute lessons in two classes, with six days of double classes, in which students actively participated in all activities. Our work makes reference to the National Curriculum Parameters (PCN) and other documents governing the teaching of mathematics in public schools in Brazil. We recommend and authorize reproduction of these activities for didactic purposes.
Uma sequência didática com embalagens de pipoca para o estudo de semelhanças
(Universidade Federal de São Carlos, 2016-09-17)
Ibrahim Filho, Georges
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Caetano, Paulo Antônio Silvani
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https://lattes.cnpq.br/0370219014539994
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https://lattes.cnpq.br/7306675819706612
This paper presents an educational sequence for the Geometry classes, which explores the concept of similarity, focusing on the variation of the similarity ratio between linear measurement, areas measurements and volume of some polyhedrons. The problematic situation in this case involves a comparison between the prices of different popcorn packaging sizes in Bauru ́s movie theaters and its area.
Uma sequência didática para o ensino de transformações geométricas com o GeoGebra
(Universidade Federal de São Carlos, 2016-09-17)
Pimentel, Luiz Fernando Garcia
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Caetano, Paulo Antônio Silvani
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https://lattes.cnpq.br/0370219014539994
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https://lattes.cnpq.br/6328628999461562
This actual study is an investigation about the importance of using computers and other information and communication technologies (ICTs) in the teaching of Mathematics. We believe in the thesis that ICT can contribute as an educational means for the improvement of teaching and learning situations, and consequently in solving problems such as school failure and school indiscipline. Therefore, we designed and applied a didactic sequence using the Geogebra for the development of Isometries topic in a class of 6th grade of elementary school. The didactic sequence was structured within the perspectives of Didactic Engineering and adopted a qualitative methodology. The results indicate that ICTs contribute significantly in the process of teaching and learning, but some external factors are still obstacles to the effective implementation of this resource in schools.
Resistência à fadiga de junta circunferencial de um tubo API 5L x 70 em contato com etanol
(Universidade Federal de São Carlos, 2016-09-19)
Giorgetti, Vinícius
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Sordi, Vitor Luiz
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https://lattes.cnpq.br/8364164402481940
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https://lattes.cnpq.br/4619431097303345
Circumferential field-welding joints of oil pipelines are susceptible to defects that may lead to failures when in operation. The type of product to be transported is an important factor in the evaluation of environment-induced cracking, especially of welded joints, where fatigue cracks may originate at points of high stress concentration. In Brazil, the construction of a long distance pipeline has been started in 2014, to transport sugarcane ethanol, which is currently widely mixed with motor fuels. In this work a circumferential joint of an API 5L X70 line pipe was evaluated by hardness, tensile and impact tests; the microstructure was observed by optical microscopy in the different regions of the welded joint and the fractured surfaces were analyzed by SEM. The material of the tube was classified according to API 5L specifications and the welded regions showed hardness distribution and microstructures in agreement with the literature. The fracture surface of the welding metal after tensile and impact tests indicated that the presence of welding discontinuities may affect strongly the fracture behavior, leading to embrittlement, especially under impact testing. The susceptibility of welded joints to stress corrosion cracking (SCC) in a simulated fuel-grade ethanol (SFGE) environment was evaluated by slow strain rate (SSR) and fatigue crack growth (FCG) tests. The tests were designed to promote crack propagation through the heat-affected zone (HAZ) or through the weld metal (WM) of a circumferential weld on an API X70 steel pipe. The SSR tests in SFGE showed reduction of elongation to failure and mixed fracture, with clear signs of SCC in both the regions of the weld. The FCG tests demonstrated that the time-dependence of corrosion fatigue interactions may involve alternating periods of increasing and decreasing crack growth rates throughout the test. Acceleration of crack propagation due to SCC predominated in the WM and deceleration predominated in the HAZ.
Aplicação da metodologia FMEA na gestão de risco no planejamento estratégico da UFSCar
(Universidade Federal de São Carlos, 2016-09-19)
Recchia, Wania Maria
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Martins, Manoel Fernando
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https://lattes.cnpq.br/3921504261628850
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https://lattes.cnpq.br/5279936861554716
This paper proposes a system to help the managers of a Federal University, aiming to identify and to monitor the risks that might appear during the creation of its Plan of Management and or Strategic Plan. For this, the concepts of risks and risks management are developed based on several methodologies used, mainly, in the private sector. Thus, an adaptation of those methodologies was performed in a public institution, which has many characteristics, such as: not seeking profit, vision of equity, multicriterial decision making, among others. In this scenery, a system based on the FMEA was developed to help managers during the process of elaboration of the Plans of management and of its details in the Strategic Plan. This action has the purpose to apply on a preliminary stage of reflection, the FMEA, which must occur in the planning moment, once it will reveal the risks of implementing the proposed actions. The results of the case study in the Strategic Planning pointed out that the actions are still in progress, after application of FMEA, were classified as moderate to high level, a fact that points to the need for treatment of the risks involving the action, with the purpose that the objectives were achieved within the planning period. Or even, it could happen a preliminary analysis of the action to scale their placement in PE with compliance just steps to involve other future periods efforts. However, the systematic application of the developed model should be adjusted to provide the best facility of use.
Um estudo das campanhas de Dilma Rousseff em 2010 e 2014 no HGPE da TV
(Universidade Federal de São Carlos, 2016-09-21)
Luchesi, Raquel Moretti
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Azevedo, Fernando Antonio Farias de
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https://lattes.cnpq.br/6291864794986993
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https://lattes.cnpq.br/5454776392672911
The preparation of an election campaign is developed to transmit matters that the mass media want to reach the public discussion. So, it is widely important to the electoral dispute because it is one of the elements responsible for making the approach candidate / voter and hence for the decision of his vote. With high coverage that television currently has in Brazil, it is possible to expose the candidate's message to a large number of voters especially with the Horário Gratuito de Propaganda Eleitoral (HGPE) that allows all candidates an access to a free time on television to broadcast their campaign. The aim of this research is to make a parallel of Dilma Rousseff campaign, the candidate of the Partido dos Trabalhadores (PT) for the presidency of the republic of Brazil in 2010 and 2014 elections and to analyze the lines of continuity and break between the campaigns in both elections, taken the differences between political moments lived through the candidate in both years. This analysis will be done through the study HGPE broadcast on television.
Cobertura florestal ou função ecológica: o dilema da restauração na bacia do Rio Sorocaba
(Universidade Federal de São Carlos, 2016-09-21)
Fernandes, Gerson Eli
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Piña-Rodrigues, Fátima Conceição Márquez
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https://lattes.cnpq.br/1475369713141675
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https://lattes.cnpq.br/1584529288982418
The study aimed to evaluate restored areas implemented in the basin of the Sorocaba River and Middle Tiete based on terms of commitments to environmental restoration and conduct adjustment terms. We selected two to three projects in each sub-basin to those with the presence of restoration, certified by the consent of the owner. In each restoration, we evaluated attributes of species diversity and functions, control and management, soil protection and nutrient cycling. The restored areas restoration presented 17 ± 10 species, under the condition established by law, mortality was high, around 40% with an average of 1090 individuals/ha. Croton floribundus, Schinus terebinthifolius, Guazuma ulmifolia, Inga vera, Citharexylum myrianthum, Cordia sellowiana represented 31.7% of species planted and together with Enterolobium contortisiliquum, colubrina Anadenanthera, C. urucurana, Ceiba speciosa, Eugenia uniflora, Lithraea molleoides, Psidium guajava, Triplaris americana, Erythrina speciosa represented 52.8% of the planted individuals. The restoration were in critical situation and, although species richness is according to legal requirements, we observed the concentration on few common and frequent species in general pioneers. Regardless of age, the studied areas did not restore the structural and physical aspects of the forest, and were not efficient in the establishment of ecological processes, highlighting the need to review the procedures adopted in the legal and technical mechanisms of restoration in the region.
Um estudo sobre políticas e subsídios para a identidade hispânica em Sorocaba
(Universidade Federal de São Carlos, 2016-09-21)
Sakurai, Marcia Ohata
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Lana, Rita de Cássia
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https://lattes.cnpq.br/1816504631940006
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https://lattes.cnpq.br/5812498862263633
Search of a record of cultural material and immaterial manifestations of the hispanic community in Sorocaba, its influence, identity, memory and cultural heritage and its transformations since its origin. Through this mapping condense and document - by bibliography, images and participatory observation - the cultural elements of the community, allowing propose and analyze necessary actions for its preservation. The participatory observation methodology was chosen in order to grant depth quality for the collected data. A preliminary mapping framework of these manifestations presented a lack of support from the government and its own community in actions aimed to enrich these assets and support culture.
Investigação da corrosão do aço carbono AISI 1020 em soluções de NaCl utilizando microscopia óptica in situ
(Universidade Federal de São Carlos, 2016-09-23)
Santos, Rapher Donizete Moreira
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Souza, Ernesto Chaves Pereira de
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https://lattes.cnpq.br/1505400360366643
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https://lattes.cnpq.br/1113005994646562
According to recent information from the World Corrosion Organization, annually, approximately 2.2 trillion of global GDP is spent on corrosion-related damage. These expenses are almost the GDP of the seventh world economy in 2015, India. Corrosion-related problems occur in different materials and in various industrial sectors such as automobile, shipbuilding, petrochemical, oil companies. One important source of corrosion in the industry is presence of chloride in aqueous solutions. This work presents a study of the corrosion of carbon steel AISI 1020 in aqueous NaCl solution from 0.1 and 0.25 mol/L at temperatures of 25° and 45° C. The steel corrosion was investigated using open circuit potential measurements (Eoc), and polarization curves (PC) coupled to optical microscopy in situ. Thus, the influence of these two factors was evaluated by the interpretation of the effects using a factorial design. From the images of the temporal series obtained by optical microscopy in situ carried during the polarization curves, it was possible to analyze the behavior and characteristics of the corrosion process, such as the average corrosion potential, corrosion rate, eroded fraction, and quantifying the maximum diameter of the pits. Through the obtained results, it is possible to observe the direct influence of concentration and temperature of the corrosion process in the carbon steel AISI 1020, with the increase in the amount of corroded pits and the eroded fraction. It is possible to observe that the corrosion process starts by individual pits, which is converted to mass propagated pits known as pit colony. The development of individual pits was relatively fast, with less than 200 seconds and a maximum diameter up to 600 μm containing area of around 2 x 10^5 μm^2.
Exergia e serviços ecossistêmicos de duas bacias hidrográficas do estado de São Paulo, Brasil
(Universidade Federal de São Carlos, 2016-09-23)
Periotto, Natalia Andricioli
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Tundisi, José Galizia
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https://lattes.cnpq.br/5730659239785432
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https://lattes.cnpq.br/1566592373309531
Eco-exergy is an innovative approach to evaluate ecosystem services, since it encompasses all possible ecosystem functions and processes in a single estimate. In this study, eco-exergy values of wetlands and native vegetation areas of Jacaré-Guaçu and Jacaré-Pepira Watersheds were estimated. The obtained values (average of 3,389 GJ.ha.ano-1, wetlands; average of 5,810 GJ.ha.ano- 1, native vegetation) are consistent with reference values showed by Jørgensen [Jørgensen, S.E. 2010. Ecosystem services, sustainability and thermodynamic indicators. Ecological Complexity, vol. 7, p. 311-313]. From a perspective of the ecoexergy concept, management practices of native vegetation and wetlands in both watersheds should consider not only quantity of vegetation conserved or restored, but also biodiversity of vegetation species. Consequently, multiple ecosystems services would be guaranteed for human well-being and for selfregulation of these ecosystems.
Efeito de rochagem, vinhaça e plantas de cobertura no desenvolvimento do feijoeiro (Phaseolus vulgaris L.) e em atributos químicos do solo
(Universidade Federal de São Carlos, 2016-09-26)
Souza, Maicon Douglas Bispo de
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Fontanetti, Anastácia
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https://lattes.cnpq.br/3598362104615834
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Assad, Maria Leonor Ribeiro Casimiro Lopes
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https://lattes.cnpq.br/0379324550884468
The Brazilian territory is constituted mostly by nutrient-poor soils. To keep the Brazilian agricultural activity is necessary to import and apply high amounts of fertilizers, which tends to aggravate the imbalance in the trade balance. Thus, rocks containing reasonable amounts of nutrients may be an alternative to supply the essential elements for agricultural use. But this practice has limitations, including the slow solubilization of the minerals present in the rock, which limits the release of nutrient amounts required by plants, especially the short cycle. The study aimed to evaluate changes in the chemical attributes of an Oxisol, in which the bean crop (Phaseolus vulgaris L.) occurred in succession to cover crops and the application of vinasse and remineralizer (basalt powder). The essay was conducted in a greenhouse and the experimental design was a randomized block in a factorial scheme 4x4x2, with three replications, and sampling in four times (0, 45, 90 and 110 days). Four doses of basalt powder (0, 2, 4 and 8 t ha-1) and two doses of vinasse (0 m3 ha- 1 and 200 m3 ha-1) were applied and four types of coverage were adopted: fallow (control), crotalaria (Crotalaria juncea L.), millet (Pennisetum glaucum (L.) R. Brown) and brachiaria (Urocloa cv. ruziziensis Germain & Evrard). The variables evaluated were: the plant height (h), dry mass, chlorophyll relative index Falker (ICF), specific leaf area (IAF), levels of macronutrients (N, P, Ca, Mg and S total) on the leaves of the bean, and soil organic matter (MOS) content, pH in CaCl2, potential acidity (H+Al), sum of bases (SB), cation exchange capacity (CTC), bases saturation (V) and P, K, Ca, and Mg contents of the soil. The association of vinasse and rates of remineralizer increased thebiometric parameters. The combination of rates of remineralizer and cover plants promoted differences in foliar macronutrient levels, with satisfactory levels of sufficiency to the bean, in the stage assessed. The application of vinasse provided lower rates of macronutrients accumulation in common beanin relation to treatments without vinasse. The use of remineralizer showed low response in chemical soil attributes, with values of pH, V and CTC lower than the initial ones. Cover crops showed no significant effect on pH and V, with a small decrease in H+Al, mainly in the braquiaria. The application of vinasse provided significant increases in chemical attributes V, pH and decreased H+Al. The pH values increased until 45 days of incubation (DAI), but with bean cultivation they decreased and were close to its initial values. On the other hand, the H+Al decreases until the bean planting, but tended to initial values after 45 DAI. The bean cultivation also decreased V. Interactions showed little effect of the associations on the evaluated variables, but the association of remineralizer with vinasse stood out for its effect on the variables pH, H + Al and V. The vinasse application was the most influential factor on the macronutrientes of the soil, presenting lower concentrations of these in the soil when applied, except for K. It is concluded that the use of cover plants with the application of remineralizer is little advantageous to increase the solubilization of nutrients contained in the remineralizer, although the amount absorbed by the cover plants has not been evaluated.
Interface cérebro-computador para detectar sonolência usando a abordagem de aprendizagem baseada em instâncias
(Universidade Federal de São Carlos, 2016-09-26)
Jalilifard, Amir
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Pizzolato, Ednaldo Brigante
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https://lattes.cnpq.br/2821982735490884
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https://lattes.cnpq.br/4901451793354227
Brain-Computer Interface (BCI) is a way to establish a communication between brain and computers. It allows the users to control a computer system and even an environment without moving a muscle or it allows the computer to record and analyze the user’s neuropsychological brain activities. Clearly, the range of BCI applications has increased in the past decade due to the use of modern machine learning and signal processing methods. Among various applications of BCI, lately, the use of EEG records for driver safety has been considered by some researchers. Drowsy driving is a major cause of many traffic accidents. The aim of this work is to develop an automatic drowsiness detection system using an efficient k-nearest neighbors (K-NN) algorithm. First, the distribution of power in time-frequency space was obtained using short-time Fourier transform (STFT) and then, the mean value of power during time-segments of 0.5 second was calculated for each EEG sub-band. In addition, standard deviation (SD) and Shanon entropy related to each time-segment were computed from time-domain. Finally, 52 features were extracted. Random forest algorithm was applied over the extracted data, aiming to choose the most informative subset of features. A total of 11 features were selected in order to classify drowsiness and alertness. The Kd-tree algorithm was used as the nearest neighbors search algorithm so as to have a fast classifier. Our experimental results show that drowsiness can be classified efficiently with 91% accuracy using the methods and materials proposed in this paper. We also compared the classification results obtained by K-NN (as an instance-based learning algorithm) with four well-known classifiers including decision tree, support vector machine, logistic regression and Naive Bayes.
Aprendizagem de posturas em equoterapia por crianças com transtorno do espectro autista (TEA)
(Universidade Federal de São Carlos, 2016-09-26)
Barbosa, Gardenia de Oliveira
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Munster, Mey de Abreu Van
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https://lattes.cnpq.br/7861049737421476
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https://lattes.cnpq.br/6901706212084983
The autistic spectrum disorder (ASD) is characterized by inadequacies in social interaction, communication skills, learning and adaptability. The person with ASD should be exposed to conditions that stimulate its maximum development in order to promote the learning process in different contexts. In this sense, the hippotherapy can be an effective strategy in the child development process with ASD, since it favors different sensory systems. However, in order the learning process to become efficient, it is necessary to employ compensatory teaching strategies that provide access to information in order to provide effective opportunity to participate in the activity. The study aimed at analyzing the effectiveness of aid levels in the posture learning process in hippotherapy for children with ASD. As for the method, this study was single-subject design, type AB with replicas of designs with single subject; three children with ASD aged between four and nine years had participated in the study. Participants underwent hippotherapy intervention lasting four months, twice a week, corresponding to 31 individual sessions of hippotherapy. As data collection instrument was made anamnesis with the parents or guardians, the Assessment of Basic Learning Abilities, field diary and checklist. The checklist was based on 10 postures namely, mount, prone, side mount, inverted mount, inverted prone, standing in the stirrups, four supports, inverted four supports, kneeling and reversed kneeling. The data analysis on the progress of each participant was descriptive. Regarding the results, it was observed that all participants were able to perform the postures with verbal assistance at the late intervention, and the learning process mediated by the visualverbal, physical and verbal aids. The latter was predominant. We conclude that the aid was effective overall, once all participants have evolved compared to the baseline, they also respond more effectively to physical and verbal assistance to later the verbal one. Moreover, learning is favored by the association of various aids, as different sensory inputs were benefited; therefore, there is no universally more efficient method; each child has a peculiar way of relating to the world and hence to the learning processes.
Etanol e suas associações : efeitos comportamentais e cardiovasculares
(Universidade Federal de São Carlos, 2016-09-26)
Engi, Sheila Antonagi
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Crestani, Carlos Cesar
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https://lattes.cnpq.br/1117432571971568
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Planeta, Cleopatra da Silva
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https://lattes.cnpq.br/2514762545280942
Alcohol abuse is a worldwide problem with concomitant medical, social and economic costs. In Brazil, epidemiological data show an increase in the abuse of illicit and licit drugs, such as ethanol and steroids. Studies indicate that physical exercise influences ethanol consumption and preference and is positively correlated with steroids abuse. Despite many evidences, there is no study about the association between ethanol consumption, physical exercise and steroids abuse. In the present study, we investigated 1) the effects of physical exercise associated to testosterone treatment in ethanol intermittent access drinking; 2) consequences of the association between physical exercise, ethanol intermittent access and chronic testosterone treatment upon the cardiovascular system of rats. Many studies suggest that the mTORC1- mammalian target of rapamycin complex participates in the mechanisms related to ethanol abuse. In this way, we investigated the mTORC1 role in the ethanol intermittent access consumption maintenance. Our results showed that a) physical exercise improved treadmill performance in rats and did not change ethanol consumption; b) ethanol voluntary consumption was not affected either by physical exercise or by testosterone treatment; c) ethanol voluntary intermittent access did not change basal arterial pressure and heart rate; d) testosterone treatment caused rest bradycardia; e) ethanol consumption and testosterone treatment altered vascular reactivity to vasoactive agents, that was also altered by physical exercise. These results show the first evidence of ethanol intermittent access and testosterone treatment on cardiovascular functions in trained rats. Our results also suggest that the downstream mTORC1 pathway is related to excessive and abusive ethanol consumption.