Browsing by Issue Date, starting with "2013-08-05"

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Desenvolvimento de polímeros à base de glicerol
(Universidade Federal de São Carlos, 2013-08-05)
Dabove, Daniel Alberto Carbo
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Marconcini, José Manoel
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https://lattes.cnpq.br/5373845785326215
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Mattoso, Luiz Henrique Capparelli
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https://lattes.cnpq.br/5839043594908917
Desenvolvendo os conceitos de perímetro e de área no ensino fundamental
(Universidade Federal de São Carlos, 2013-08-05)
Domingos, Valéria Salomon
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Paterlini, Roberto Ribeiro
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https://lattes.cnpq.br/6240750958932738
This paper consists of a series of didactic activities aiming at making the teaching/ learning of the concept of perimeter and planimetry easier for sixth grade elementary students. Our objective is to provide students with an opportunity of meaningful learning of those concepts, as well as an introduction to the formulae for the resolution of geometry problems about perimeter and area. The activities are designed to allow the use of geoboard, EVA materials, as well as guidance which help the grasping of concepts and solution of geometry problems. Those activities were performed in two sixth grade classes from two public schools in the city of Ribeirão Preto SP, Brazil. The results were analyzed using the students answers to the exercise. As an outcome, we managed to design a didactic learning tool, validated by this experiment, ready to be used directly or adapted by teachers in similar circumstances.
Jogos no processo de ensino-aprendizagem em probabilidade
(Universidade Federal de São Carlos, 2013-08-07)
Silva, Fabrício Menezes Netto da
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Malagutti, Pedro Luiz Aparecido
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https://lattes.cnpq.br/5462523657624050
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https://lattes.cnpq.br/9048311574707992
This work has as a goal to stimulate good pedagogical practices aiming the best learning from students in Probability, through daily applications and/or games. Besides, it has as highlight a teaching sequence proposal inspired by TV Show ( O último passageiro) to analyze this subject, which it was developed through stimulations of game, debates, probability calculation and construction of graphics with students of 2nd and 3rd grade in High School at a public school Escola Estadual Professor Roque Ielo , Caconde-SP, aiming to transform theoretical approach of this knowledge into a constructivist approach stimulating the student to be the protagonist.
Criptografia e conteúdos de matemática no ensino fundamental
(Universidade Federal de São Carlos, 2013-08-07)
Rodrigues, Jaqueline de Moraes
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Malagutti, Pedro Luiz Aparecido
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https://lattes.cnpq.br/5462523657624050
The central aim of this dissertation is to present the results of a teaching experience of using encryption for the study of functions in mathematics classes in elementary school, the result was checking improvements in conceptual understanding above. The experience in the classroom shows that students have great difficulty working the concept of functions. Various activities are presented based on cryptography to overcome the difficulties that students frequently bring in learning functions and related concepts.
Evolução cromossômica em Erythrinus erythrinus (Characiformes, Erythrinidae). Citogenética comparativa entre cariomorfos
(Universidade Federal de São Carlos, 2013-08-08)
Martins, Nícolas Fernandes
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Bertollo, Luiz Antonio Carlos
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https://lattes.cnpq.br/2969192784846566
Erythrinidae is a relatively small Characiformes fish family, but widely distributed in the Neotropics. This family comprises only three genera: Hoplias, Hoplerythrinus and Erythrinus, all endemic to Central and South Americas. It is characterized by a divergent karyotype evolution and offers excellent opportunities for analyzing evolutionary events concerning the differentiation of the karyotype as a whole, as well as of the sex chromosome systems. In this sense, the species Erythrinus erythrinus presents four karyomorphs (A-D), in which homomorphic or heteromorphic sex chromosomes can be found. The main purpose of this study was to analyze the chromosomal differentiation among karyomorphs of E. erythrinus and their evolutionary relationships, using both conventional cytogenetic methods and the chromosomal mapping of repetitive DNAs sequences by FISH. The data showed the occurrence of small supernumerary chromosomes which are mitotically unstable, as well as useful molecular markers. Indeed, the mapping of several repetitive DNA sequences highlighted unique or shared features among the karyomorphs, indicating their evolutionary differentiation. The data also reinforce that distinct populations from karyomorph A behave as an evolutionary unit despite their wide geographic distribution. In turn, although the karyomorphs C and D share several karyotypic characters, they present specific molecular markers indicating their distinct evolutionary paths. Even though that morphological differentiations are not easily detectable among the karyomorphs, the set of the chromosomal features strongly corroborate that E. erythrinus belongs to a species complex.
Avaliação do ciclo de vida da brita para a construção civil: estudo de caso
(Universidade Federal de São Carlos, 2013-08-09)
Rossi, Efigênia
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Sales, Almir
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https://lattes.cnpq.br/7377787166073311
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https://lattes.cnpq.br/9625302920847212
The civil construction is one of the most important activities for the economic and social development, however it also behaves as a major generator of environmental impacts. The aggregates for construction include crushed stone, sand and gravel and they are the most consumed inputs in the world. About 60 to 80% of the volume of concrete is composed by them and crushed stone has an extensive use. This study aims to wage the Life Cycle Assessment (LCA) of crushed stone in the production of concrete applied in civil construction, through the identification and discussion of quantitative stages of extraction, processing, storage, transport, use and final disposal. In the developing of the methodology we used the standard recommendations of ISO 14040 and 14044, where the study is divided in four parts: Definition of goal and scope, Life Cycle Inventory Analysis (LCI), Life Cycle Impact Assessment (LCIA) and Interpretation. The largest impacts related to the following categories: Human toxicity (soil), Acidification, Nutrient enrichment and Global Warming. The results indicate that the critical steps of the whole life cycle of gravel are, in descending order: Extraction, Transportation from processing to trucks and Final disposal. The emissions from these critical stages correspond to those of higher fuel consumption. As alternatives to mitigate and minimize these impacts we proposed preventive maintenance of equipment and investment in technologies that allow the use of less polluting fuels, such as S50, S10, biodiesel and other biofuels.
Questões ambientais, socioeconômicas e histórias de vida de assentados/as rurais do assentamento Estrela da Ilha no município de Ilha Solteira - SP
(Universidade Federal de São Carlos, 2013-08-09)
Simonato, Danitielle Cineli
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Figueiredo, Rodolfo Antônio de
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https://lattes.cnpq.br/0854609216769461
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https://lattes.cnpq.br/7633974882677265
The present study aimed to know the socioeconomic, environmental profile and life history of the rural settlers of the Estrela da Ilha settlement, in the municipality of Ilha Solteira, located in the State of São Paulo. The settlement has 209 land lots and the research was performed with 35 families. For data collection was used a questionnaire containing 50 questions about the socioeconomic and environmental profile of the settled families and, also, the collection of oral statements about the settlers' life history. The data analysis was made in a qualitative and quantitative way: the open questions were analyzed using the discursive textual analysis and the closed questions through simple statistics. The results pointed that the settlement profile in relation to age 37% are between 40-50 years, being 60% from male gender, the source of income of 54% of the families comes from their own property, the family income of 51% of the settlers is two minimum wages monthly, 68% has only uncompleted primary education, the home conditions indicated that 94% of the settlers have masonry dwellings and 89% of them are unfinished, 71% of the settlers claim to consume industrialized food frequently, the settlement production is characterized by dairy farming in most lots, followed by horticulture, the commercialization is done through cooperatives and associations, as well as sales in the city fairs. Was also researched, the environmental questions like the forest reserve area, water supply in 94% of the lots comes from wells, sanitary sewage 71% of the lots have septic tank, 74% of them use pesticide, was also researched about the solid waste management. The life histories highlighted the difficulties faced by the settlers to conquer the land, since the camp to the establishment on the lot. Denoted on the statements dreams, joys, settlers faith, it also disclosed the difficulties and problems of the Estrela da Ilha settlement. We conclude that in the community studied the biggest problems are related to socioeconomic issues, like income and education, and the worst environmental problems are the indiscriminate use of pesticides, the improper disposal of solid waste and the sanitary sewage. Therefore, these weaknesses need to be worked through public policies of access to education in rural areas, infrastructure, production and commercialization strategies and technical assistance for achieving sustainable rural development, emphasizing the quality of harmoniously living with the environment and social justice.
Lixiviação dos íons nitrato e potássio em latossolo submetido à aplicação de diferentes doses e tipos vinhaça
(Universidade Federal de São Carlos, 2013-08-12)
Godoy, Fabiane Karen
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Soares, Marcio Roberto
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https://lattes.cnpq.br/6337462438517339
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https://lattes.cnpq.br/3565007172700007
Vinasse is a liquid effluent with a high organic load and it has significant concentrations of Nitrate (NO3 -) and Potassium (K⁺). It is of great interest for the sugarcane sector by reducing costs in fertilizer application. According to the technical regulation P4.231 of CETESB, the impasse in the usage of vinasse in fertigation leads the search toward new alternatives for the effluent usage and treatment. This study investigated the mobility of NO₃ and K⁺ at different depths of Oxisol and the changes in soil electrical conductivity (ECs) in the layer next to the water table. Additionally, this work evaluated whether the rate and period of vinasse application established by the technical regulation P4.231 are appropriate to minimize the risk of soil and groundwater contamination, also evaluate the residual effects of vinasse in soil columns after 6 months monitoring, in order to contribute to the improvement of P4.231. The study was conducted in 15 x 170 cm PVC columns (diameter x height). The column packing was done in order to reproduce the profile of Oxisol, mainly on the thickness and density of the layers collected. Extractors of soil solution were installed at depths of 50 cm and 100 cm from the top of the columns. In the base of the column, a drain was placed at 50 cm to collect the leached. TDR (Time Domain Reflectometer) probes were installed at 120 cm to monitor soil moisture and ECs. After 15 days of saturation with distilled water, the columns received the application of vinasse in nature (V), vinasse in nature subjected to chemical treatment (Q), vinasse in nature subjected to biological treatment (B) and concentrated vinasse (C) at dose calculated by the P4.231 (1) and at duplicated dose calculated (2). The columns were subjected to a simulated rainfall based on the behavior of the rainfall in the region of Araras, SP. After collecting the solution at 50 and 100 cm and leached at 150 cm, determinations of NO3 - contents, by the method of brucine, and K+, by flame photometry, were made every 15 days for 5 months. Significant differences were observed in the levels of NO3 - and K+ in solution attributed to time, depth, type and dose of vinasse. After 45 days of the application of V1, V2, Q1, Q2, B1, B2 vinasses, the NO3 - had leached through the layer until 100 cm. The adsorption of NO3 - , which occurred in the layer until 100 cm, delayed but not prevented ion leaching to a deeper layers than 100 cm, from the 90 days, independent of the type and dose of vinasse. All vinasses, after 105 days, resulted in levels of NO3 - from 3 to 4 times greater than the maximum allowed value for the quality of groundwater (10 mg L-1). At the layer until 50 cm, all the vinasses promoted changes in the K+ solution after 30 days of application, but the application of Q2, C1, C2, and specifically B2, resulted in higher rate of K+ solution. In the layer until 50 cm, a decrease in the levels of K+ in solution was observed from 90 days. Unlike what happened with NO3 -, K+ was absorbed by surface soil layers and its leaching was avoided. Regardless of the type and dose of vinasse, there was an increase in ECs until the 15th week after application, without compromising the quality of the water. The application of vinasses in nature treated chemically and biologically resulted in higher values of ECs. The use of vinasse in nature, at the rate calculated by P4.231, resulted in lower values of NO3 - and K+ in solution, regardless of depth, thus it is recommended that the standard P4.231 should be used only for the application of vinasse in nature. It is suitable to incorporate the levels of NO3 - in the equation in order to calculate the dose of vinasse by P4.231, since the NO3 - had reached the layer at 100 cm in 45 days, i.e., an incompatible period of time with the adequate development of the sugarcane root system, allowing the leaching of NO3 - out of the root zone of influence. In general through the analysis of soil column percolation after 6 months of monitoring, it was possible to verify a residual effect of vinasse, considering all types and doses, in soil samples for the parameters Na+, K+ , and Fe3+. The K+ was retained in the 0 to 50 cm in the percolation columns. Conversely Na+, showed the highest concentrations in the depths of 80-130 cm, showing their greatest potential leaching compared to K+.
Efeitos da microinjeção intra vermis cerebelar de tioperamida na consolidação da memória emocional de camundongos
(Universidade Federal de São Carlos, 2013-08-12)
Costa Neto, Jorge
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Mattioli, Rosana
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https://lattes.cnpq.br/5694498670428619
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https://lattes.cnpq.br/2029949632509354
Experimental studies indicate that the cerebellum works not only in motor control but performs more complex tasks, such as the consolidation of emotional memory. The purpose of this study was to evaluate the effects of actions of thioperamide (THIO), histaminergic H3 receptor antagonist, in the consolidation of emotional memory in mice through the cerebellar vermis. To this was done two experiments. Experiment 1 used the elevated plus maze (EPM) as the test apparatus, and the experiment 2 used the Inhibitory Avoidance Test (IAT). In both experiments were utilized four experimental groups of male mice of Swiss Albino strain, weighing between 25-35g. All animals were submitted to surgical procedure that consisted in the implementation of the guide cannula in the cerebellar vermis. In each experiment there was one control group that was treated with saline (SAL), and three groups that received pharmacological treatment of THIO different concentrations: 0.06, 0.3 and 1.5 ng/0.1μl. The tests were done on two consecutive days (exposure and reexposure), and drug treatment occurred immediately after exposure. The data were analyzed using analysis of variance (ANOVA) of a track followed by the Duncan test (P <0.01). It was concluded that, in both experiments, the data of previous exposure groups pharmacological treatment did not differ significantly and were grouped in pool. In experiment 1 the reduction of exploration of the open arms on reexposure was considered indicative of learning and memory. The data of experiment 1 pointed out a deficit of emotional memory consolidation for the group with lower dose of THIO (0.06ng /0.1μl), because the data of this group showed no statistical difference in relation to the pool for the variables %OAE and %TAE. The other groups (0.3 and 1.5 ng/0.1 μl), had a reduction in exploratory activity. There was also a statistical difference between the groups of reexposure, being the smallest group of THIO, statistically different from SAL and the two groups of larger doses used in this study did not show this difference. None of the doses used THIO intervened in locomotor activity of the animals, because there was no difference in the variable EAE. In experiment 2 was indicative of learning and memory latency increase on reexposure. The latency increase was observed in groups SAL, 0.06 and 0.3ng/0,1 μl compared with the pool. There was no difference for the group 1.5 ng/0.1 μl. Among the group data of reexposure, there was a difference of 0.3 THIO groups and 1.5 ng/0.1 μl compared to the control, and this difference was not observed in group THIO 0.06.
Nanopartículas de grafite para carreamento de antiinflamatórios não esteroidais por estudos de docking molecular
(Universidade Federal de São Carlos, 2013-08-13)
Leves, Natalia
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Moreira, Fernando Manuel Araújo
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https://lattes.cnpq.br/1809254923092721
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https://lattes.cnpq.br/9700488926681385
The non steroidal anti-inflammatory drugs have been known for over 100 years and has been widely used by mankind. However cause adverse effects, since gastrointestinal complications to cardiac diseases many of these symptoms related to its nonspecific action in biological systems. Thus, the proposal of a drug delivery system for loading these drugs to the site of inflammation, could reduce these unwanted effects in the body due to the limitation of more targeted effects beyond its site of action.In this study, the graphene and graphite plates were used as carriers, since studies demonstrate the usefulness of other conformational structures of carbon as drug carriers for the treatment of cancer, for example. Two models were studied for the plates by softwares of molecular docking: template sandwich, which comprises two carbon plates, with ligant between them, and the model surfing with one carbon plate comprising the ligant. The compounds were obtained from data banks, such as CSD, PDB and SD, the plates were obtained by molecular modeling. The analysis of intermolecular interactions, essential knowledge for understanding the structures obtained was done using molecular imaging with high resolution. The experimental results showed that the in silico model sandwich was the most favorable for this system, providing stability and protection for the ligand that this does not become detached from the plates during the path taken in the body to the desired location.
Produção de etanol de 2ª geração por Dekkera bruxellensis a partir de hidrolisado de bagaço de cana-de-açúcar
(Universidade Federal de São Carlos, 2013-08-13)
Codato, Carolina Brito
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Bastos, Reinaldo Gaspar
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https://lattes.cnpq.br/9329363278429665
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https://lattes.cnpq.br/3494772532325734
Bioethanol is an alternative low cost fuel, which is conventionally obtained in Brazil from the fermentation of sugarcane juice, molasses, or a mixture of these. However, alternatively, ethanol could be obtained from lignocellulosic materials, wastes or agroindustrial byproducts composed of cellulose, hemicellulose and lignin, such as sugarcane bagasse. For each ton of cane processed, 250 kg of bagasse are obtained on average, which is usually burned for power generation industry. The microbial cultivation using these materials depend on the availability of substrates, accordingly, acid hydrolysis has been considered one of the most widely used process for the depolymerization of the hemicellulose fraction of lignocellulosic materials, due to their low cost and high efficiency. However, under conditions of high temperature and pressure, glucose and xylose released are degraded to 5- hydroxymethylfurfural (HMF) and furfural, respectively. These compounds are characterized by inhibiting the yeast used in the fermentation step, which influences the microbial metabolism and the conversion of hexoses and pentoses obtained in ethanol. In this context, the aim of this work was to evaluate the ability of a yeast strain, from the species Dekkera bruxellensis (CCA155) in producing ethanol from sugarcane bagasse hydrolysates, since it has shown to be a yeast tolerant to adverse conditions found in industrial fermentation processes. The results indicated that D. bruxellensis was capable of producing ethanol in a synthetic medium containing xylose or arabinose, and xylose or glucose as sole carbon sources, and when grown in concentrations of 50 or 100% sugarcane bagasse hydrolyzate, maximum specific speeds growth was similar, about 0.009 h-1, with cell productivity of about 0.035 gL-1h-1. In the bioreactor tests, the yeast displayed low specific growth rate during the first five days, 0.003 h-1, caused by a slow consumption of glucose. But in a second phase of growth, with a lower rate 0.001 h-1, there was an increase in xylose consumption, a period in that an increase in ethanol concentration with maximum yield of approximately 3.25 mg/L.h was observed. Therefore even with lower growth when compared to yeast fermentation conventionally used in ethanol industries, these results suggest the feasibility of the cultivation of D. bruxellensis in hydrolysates of sugarcane bagasse.
Remediação in vitro de poluentes orgânicos persistentes com utilização de plantas e nanopartículas
(Universidade Federal de São Carlos, 2013-08-14)
Almeida, Marcos Vinícius de
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Rissato, Sandra Regina
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https://lattes.cnpq.br/2611597065632795
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https://lattes.cnpq.br/4508755282986225
Environmental pollution has been a complex problem which generates a lot of ecological consequences. Among all chemicals produced by anthropic activity human, there isa wide range of organic compounds affecting on the environment and human health, which were grouped under the acronym POPs, Persistent Organic Pollutants. These compounds have been targeted at all conventions on the global environment. Bioremediation, phytoremediation and thermal treatment are techniques that have been tested in recent years and in many cases showed good results for decontamination matrices such as soil and water. Nanotechnology emerged in the recent years as an important tool for environmental purification and has been highly used by presenting itself as technological option for "green oxidation". Plants can also be considered as component of aggregation and transformation of organic compounds in their tissues and can also be applied in phytoremediation purposes both in vivo and in vitro models. This study developed a remediation method fully in vitro, in contrast to traditional methods in vivo. Two novel protocols were established by the development of in vitro culture: one for bamboo species Bambusa vulgaris var. vitatta and other for sunflower Helianthus annuus. L. The study of bioremediation effects of these species in vitros howed promising results for seventeen from twenty-four compounds evaluated using sunflower reaching until 87% for remediation. Moreover, it was possible to verify the nanostructured TiO2 toxicity to the studied species at different stages of development. The use of nanostructured TiO2 in the remediation of aqueous samples contaminated with POPs showed promising results in degradation of around 50% for most pollutants. This work suggests an interesting comparison of the potential of these techniques in environmental applications with respect to efficiency, practicality and toxicity especially focus in go remediation processes certainly due to its dynamic results can provide environmentally attractive and can even be used together.
Uso de biomassa de algas para a peletização de sementes e desenvolvimento de plântulas de Bowdichia virgilioides Kunth
(Universidade Federal de São Carlos, 2013-08-14)
Montanhim, Graziela Cristina
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Lima, Maria Inês Salgueiro
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https://lattes.cnpq.br/2171993314203162
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https://lattes.cnpq.br/4495914996455718
Algae are organisms with which studies have been made on the uptake of carbon dioxide, as a source of lipids for research on biofuels such as fertilizers and soil. But little is known about the interaction of such organisms with higher plants. Thus, the general objective of this master thesis was to reuse the algal biomass of Selenastrum capricornutum Printz (Chlorophyceae class) e Chlorella sorokiniana Shihira e Krauss (Trebouxiophyceae class) in pelleting seed Bowdichia virgilioides, native to the Brazilian Savanna that are classified as threatened with extinction and whose wood has attributes for the furniture industry, besides the medicinal properties already reported in other studies. First, the seeds were grown in a greenhouse, with the following treatments: a) seeds naked; b) pelleted seeds with white glue based on polyvinyl acetate diluted to 8% at water and gypsum; c) seeds pelleted with glue based white polyvinyl acetate diluted to 8% at wet algal biomass of Selenastrum capricornutum and gypsum; d) pelleted seeds with white glue based polyvinyl acetate diluted to 8% at wet algal biomass of Chlorella sorokiniana and gypsum. Fungicide and insecticide were added to the silicato and gypsum for agricultural according to industry directions. The parameters mean emergence time (days), weight (g) dry and cool, length (cm) of aerial and root portions and number of nitrogen fixing nodules in the roots don t showed statistically significant difference between treatments. The variable "emergency percentage" showed that pelleted seeds with C. sorokiniana biomass as a cement material constituent showed value equivalent to conventional treatment (naked), paving the way for new studies pelleting with agal biomass of that species. As higher be the algae intracellular biochemical values, higher be the chances to achieve satisfactory results, because the seed can be use algae biochemical components at its development. In a second stage, there was pelleted seed sown in an area of brazilian savanna and the treatments were: a) naked seed; b) pelleted seeds with white glue based on polyvinyl acetate diluted to 8% at water and gypsum; c) pelleted seeds with white glue based on polyvinyl acetate diluted to 8% at wet algal biomass of Selenastrum capricornutum and gypsum with fungicide and insecticide; d) pelleted seeds with white glue based on polyvinyl acetate diluted to 8% at water and silicate for agricultural; and e) pelleted seeds with white glue based on polyvinyl acetate diluted to 8% at wet algal biomass of Selenastrum capricornutum and silicate for agricultural. Fungicide and insecticide were added to the silicato and gypsum for agricultural according to industry directions. For this experiment hood, it was observed that treatment with only gypsum had a significantly lower percentage of emergence. The treatment with silicate was considered as an effective material coating to the sucupira seed pelleting process, cultivating in savanna field. Thus, the alga Chlorella sorokiniana showed to be an efficient cementing material for pelleting process and silicate for agricultural a promising coating material, when it comes to planting in the field.
O uso de tecnologias como ferramenta de apoio às aulas de geometria
(Universidade Federal de São Carlos, 2013-08-16)
Kitaoka, Alessandra de Carvalho
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Barros, Tomas Edson
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https://lattes.cnpq.br/5442017085057925
This project's main goal is propose the application of a Teaching Sequence about how finding the notable points of a triangle, in particular, the circumcenter. Introducing in the sequence geometric objects primaries of Euclidean geometry with the axioms and the theorems necessary to construct the circumcenter. The geometric objects will be built through educational software Geogebra. The teaching of geometry, often present to the end of the textbook, is faced with the difficulty of the students to manipulate instruments as ruler, protractor and compass. On the other hand, the fascination of students by computers facilitates the use of geometric softwares. The sum of these factors, have inspired this project. Based on the methodology of the didactic engineering I intend to show the construction steps of mathematical knowing from the student's research experimenting, visualizing, conjecturing, generalizing even demonstrating the mathematical basement in this context.
Modelos de geração de viagens para condomínios residenciais horizontais
(Universidade Federal de São Carlos, 2013-08-16)
Torquato, Tiago Lourenço de Lima
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Raia Junior, Archimedes Azevedo
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https://lattes.cnpq.br/6413793013018019
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https://lattes.cnpq.br/4487314301615348
The meeting of man need s, in the urban environment, create different types of projects, which significantly change city s life. According to the number of dislocations generated, luxury condos are characterized as Trip Generation Polo. Thus, to approve and begin the construction, become necessary preliminary studies, based on the forecast trip production and attraction to determine and minimize their impact on the region where they are installed. There are few studies in Brazil, so, this research intends to build a model about luxury condos trip generation. The case of study was based on the reality of the city of Bauru, São Paulo. The proposed procedure was applied in seven condos with similar characteristics, in which the data were collected from 6:30am to 20pm. This research generated 14 satisfactory models, depending on how trips were made (Cars, on foot and all modes), on the collection period (7h to 9h, 16h to 18h and 6h30 to 20h) and the explanatory variable of the phenomenon (Occupied units and total area of the project). The occupied units were the explanatory variable with better representation of the phenomenon (resulted in lower standard deviations and highest coefficients of determination R²). These results could be basis for future of urban planners, especially in decision-making regarding the approval of new projects. The study is based on quantitative technical procedures of bibliographic research and data collection.
O ensino e a aprendizagem da análise combinatória dentro do contexto de telefonia
(Universidade Federal de São Carlos, 2013-08-17)
Fusel, André Thiago
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Costa, Ivo Machado da
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https://lattes.cnpq.br/1111331485581633
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https://lattes.cnpq.br/4530476750103140
This present dissertation, structured in the methodology of well-known research as Didactic Engineering, it presents the development of an unpublished class for the teacher on combination analysis in the High School. The objective of this work is to elaborate a didactic material that aids the students in the learning of some concepts of combination analysis in a significant way. The elaborated didactic sequence is inserted in the telephony context and it approaches the current subject on the increment of the 9th digit in the numbers of cellular of the area of the State of São Paulo with code of area 11. The whole sequence was thought so that the student will be the protagonist of its learning, making observations, you conjecture, debating with the colleagues, manipulating materials and solving the problems proposed in the leaves of activities in an autonomous way. The didactic sequence was applied for two groups of 2nd year of the High School in the School Educational Center SESI Bragança Paulista. For they accomplish the activities, the students were divided in groups. All the sheets of activities accomplished by the students and the registrations of observations facts by the teacher during the application of the activities were good as tools to verify the objective plans were reached.
Despoluição de um lago - progressão geométrica
(Universidade Federal de São Carlos, 2013-08-17)
Chiconato, Daniele Cristina
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Costa, Ivo Machado da
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https://lattes.cnpq.br/1111331485581633
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https://lattes.cnpq.br/8969022429064814
This work aims to assist the Geometric Progression Content Learning, developing educational material supported by research methodology called didactic engineering. We developed an instructional sequence based on a problem situation, in which students, by providing a simulation of a polluted river, should predict the time needed for the de-pollution to occur and develop a mathematical model in order to explain this phenomenon. The work was applied in a Ninth Grade classroom (Junior High School) in the State School called Victor Maida in Ibitinga with 29 students divided into trios. These trios remained together until the end of the application of the instructional sequence, which lasted five days. The sequence contained about 60 questions, which were formulated into a form with which the student could act autonomously, with minimal teacher intervention. Finally, this work was based on the collection of results in the analysis of priori and a posteriori of the responses provided by the teams, in order to check the results obtained.
Avaliação do efeito da bebida de açaí no perfil lipídico e glicêmico em ratos Wistar
(Universidade Federal de São Carlos, 2013-08-19)
Fernando, Francine da Silva e Lima de
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Pessoa, José Dalton Cruz
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https://lattes.cnpq.br/4212703554284544
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https://lattes.cnpq.br/2726460296098191
The Chronic Noncommunicable Diseases are a major global public health challenges , and are determined mostly by the association of modifiable risk factors , such as nutrition . It is believed that the use of functional foods with antioxidant properties can positively affect the incidence of such diseases. Given this context highlights the Acai ( Euterpe oleracea ) , which features in its pulp components with the ability to inhibit or reduce oxidation processes generated by free radicals in the body . Thus , this study aimed to evaluate the effect of the consumption of the drink acai in glucose and lipid profile of Wistar rats . For forty- five days 12 Munich- Wistar rats ( Rattus norvegicus ) adult females with an average weight of 250g were divided into two groups ( Acai and Control ) received water and feed ad libitum to except the group that had the Acai replaced by drinking water Acai . At the end of the experiment the animals were anesthetized and euthanized . Blood samples were collected for analysis of biochemical parameters (glucose , cholesterol , triglycerides and blood count ) and tissue samples for histological analyzes . In the analyzed variables , even without showing statistically significant differences , descriptive results showed the maintenance of body weight and glucose and lipid reduction , and increase in some blood components relevant group Acai . Thus Because the population growing interest in consuming food which prevent diseases , promote health and improve the quality of life, it is suggested that new experimental models are implemented so that the beneficial effects are enjoyed arising from the consumption of açaí.
A determinação dos pontos notáveis de um triângulo utilizando o software GeoGebra
(Universidade Federal de São Carlos, 2013-08-19)
Felício, Adriano César
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Sampaio, João Carlos Vieira
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https://lattes.cnpq.br/8286887389013685
In this paper, I intend to report the experience of implementing an activity in some classes in a public school of the city of Ribeirão Preto, state of São Paulo, where it was made an approach to the subject "Notable Points of a Triangle" by using the software GeoGebra like as a tool for teaching and learning. The aim is to analyze students' reactions and the interaction of the same at the presentation of the content using this software. Also a comparison of the progress is made with regard to student learning through the production and execution of activities, consisting of scripts/walkthroughs. The methodology used is the didactic engineering. Working in pairs, due to the limited amount of computers in the computer lab of the school, improved academic relations between some students, arising naturally an exchange of ideas and awakening a spirit of collaboration in a very healthy learning space. At the end of the study the author concluded that activities using computing resources as an educational tool optimizes the process of teaching and learning.
Análise da expressão gênica das peroxirredoxinas em pacientes talassêmicos e com anemia falciforme
(Universidade Federal de São Carlos, 2013-08-19)
Romanello, Karen Simone
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Cunha, Anderson Ferreira da
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https://lattes.cnpq.br/0329741640375661
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https://lattes.cnpq.br/1347247507713902
Reactive Oxygen Species (ROS) are generated by the incomplete reduction of oxygen during metabolic processes, exposure to external agents and as a secondary response to several diseases and when in excess, can cause injury to tissues and cells. During the evolution process, cells have developed several antioxidant mechanisms. One of such mechanisms encompasses the peroxiredoxins (PRDXs), which are highlighted for their abundance and high reactivity with their substrates. In humans, six different PRDXs have been described as located in different cellular compartments. In erythrocytes, PRDXs, particularly PRDX2, is the third most abundant protein, indicating its possible role in the cell development and their maintenance. However, there are few studies connecting these proteins to erythroid diseases, especially in hemolytic anemias, that have a high ROS production, such as beta thalassemia and sickle cell disease (SCD). This study evaluated the role of PRDXs in reticulocytes of patients with the diseases described above, compared to reticulocytes of health blood donors, using Real Time PCR and proteins will be analyzed by Western blot. Our results showed that the levels of transcript and PRDX1 protein were increased in BT patients and decreased in SCD. The PRDX2 transcript showed no differences in both diseases but in western blot analysis a decrease in PRDX2 protein was observed in SCD, indicating a possible pos transcription regulation process for this gene in SCD. The levels of PRDX5 transcript did not present difference in any of the diseases. A reduction in mRNA and protein levels for PRDX6 was observed in BT and SCD patients. Besides its action in the detoxification of ROS, PRDX6 acts also as a phospholipase A2 regulating the phospholipid turnover at the cell membrane. The decrease of this enzyme found in both patients could indicate that the cell membrane of the erythroid cells were not renovated leading to hemolysis observed in these patients. This is the first study correlating gene expression of peroxiredoxins in these hemolytic anemias The results could contribute in better understand the role of these protein and in a identification of new targets that could help in the management of diseases and improve the survival of these patients.