220 resultados para Raízes reais de equações


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This text, supported by the Social Representations Theory (SRT), reports some results of a research with students from the 1st/4th years of the College of Sciences and Technology from the State University of São Paulo (FCT-Unesp) on the teacher’s work/identity. We applied 278 questionnaires (free association questions on the teacher’s work and profile). Two groups with former students (five with teaching degrees and four with degrees in Education) were organized. We analyzed issues regarding the choice for the teaching profession (Geography - 3; Math - 04; Physical Education - 01 and Pedagogy – 10). Partial results: 1. There are differences between the social representations of students enrolled in Teaching and Education courses; 2. These people say the profession requires dedication and commitment; 3. They establish a strong relationship between career choice and the “taste” for the profession; 4. They believe that their role is greatly challenging: it involves helping prospective students and commitment to the school.

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In this work we have developed an apparatus in order to study the capture of asteroids by planets surrounded by a gas envelope during y-by, to do this we have brought an innovation by using a hydrodynamical gas. We began such project by studying particles trajectories with a code based on the analytical gas. After being used to this model we have started a process to elaborate a code which uses the gas in a numerical way. The hydrodynamical gas is described by equations which are not solved analytically. Therefore, it was used an algorithm able to model the gas by keeping all information of the gas in cells. Thus we have made a code to read such cell`s information and then to solve all calculations. Once this process is done, the program inform us all date about the simulated trajectories

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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Pós-graduação em Matemática em Rede Nacional - IBILCE

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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The purpose of this work was the study of numerical methods for differential equations of fractional order and ordinary. These methods were applied to the problem of calculating the distribution of the concentration of a given substance over time in a given physical system. The two compartment model was used for representation of this system. Comparison between numerical solutions obtained were performed and, in particular, also compared with the analytical solution of this problem. Finally, estimates for the error between the solutions were calculated

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According to Sérgio Buarque de Holanda, there is a “thinking addiction" in Brazil that disfigures reviews and creates disadvantages for a better understanding of the real changing of conditions in society. It is in Raízes do Brasil that this "reasoning addiction" is best defined as an "Invincible disenchantment from the view of our real conditions". This definition is supported by the bovarism theory - pouvoir qu`a l`homme de se concevoir autre qu’il n’est - theory formulated by Jules de Gaultier (1858-1942), French homme de lettres and who promoted Nietzsche in France - for this title, he is self intended as a philosopher, which extends the characterization of the individual drama of Flaubertian's character of Madame Bovary for the characterization of nations. Sérgio Buarque de Holanda is not the only author who uses this notion, before him, it was also in Paulo Prado and Lima Barreto and much after him in Celso Furtado and Paulo Eduardo Arantes, to keep with the best known authors. This article aims to show how bovarism is born, what it is meant in the French context of origin and how it acclimatized in Brazilian's intellectual experience, theoretically basing important diagnostics of our society. This is to conduct genetic mapping of a concept which is still strong in the horizon of the decisive clash between national projects that deal with Brazil's peripheral condition.

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Th e anthology La ricerca della radice written by Primo Levi allows the reader to understand the intellectual infl uences received throughout his life. Th e aim of this paper is to establish analytic relation between the authors contained in the personal anthology of Primo Levi and his historical narrative about Auschwitz.

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To calculate the estimated and actual height and weight measures in cancer patients, evaluate the correlation and concordance of these measures and to identify the malnutrition patients. 62 cancer patients, treated at the Amaral Carvalho Hospital (Jaú- SP). For classifi cation of nutritional status, the Patient-Generated Subjective Global Assessment, the Body Mass Index and the relationship with usual weight were used. For the estimated weight was used the algorithm Chumlea et al.7 and estimated height, the equation proposed by Chumlea et al.8 and Kwok & Whitelaw24. The Pearson Correlation Coeffi cient and the Intraclass Correlation Coeffi cient was calculated and simple linear regression was conducted. To compare the malnutrition detected by different methods, the Cochran’s Q test were performed. There was a strong and signifi cant correlation between the estimated and actual weight (r=0,95; CI95%=0,92-0,97; p<0,001) and excellent concordance (ρ=0,95). For height measurements, a signifi cant correlation was observed between the actual and estimated measurement the method Chumlea et al.8 (r=0,78; CI95%=0,66-0,86; p<0,001) and Kwok & Whitelaw24 (r=0,85; CI95%: 0,75-0,90; p<0,001). Concordance was “Good” (ρ=0,72) and “Moderate” (ρ=0,67) between the actual height and estimated by Chumlea et al.8 and Kwok & Whitelaw,24 respectively. There was a strong correlation between the actual and estimated weight and height measures. The reproducibility of the equation proposed by Chumlea et al.8 to calculate height was better. The nutritional status, the patients classifi ed as malnutrition was greater when using the Patient-Generated Subjective Global Assessment and the relationship with usual weight.

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Periodontal treatment of teeth with furcation lesions often have unpredictable results due to several factors that may hinder therapy or influence the progress of periodontal disease. Of these, the length of the root trunk may contribute to the early injury of the furcations or even cause complications for the application of the treatment; the opening of the roots can guide the type of treatment to be instituted and cervical enamel projections may hinder the instrumentation of the region or even act as a retention plate niche. Thus, the purpose of this study was measured using a digital caliper, root logs database 400 molar both the 1st and the 2nd and both upper and lower as well as analyze using appropriate index type projection cervical enamel and through appropriate classification the opening of the roots in order to guide the diagnosis and treatment plan. We conclude that there is variation in measures of root trunk between the faces of the teeth examined and that greater cervical enamel projection (ECP) correlates with a decrease in the length of the root trunk in the sample evaluated as the first molars have higher occurrence of roots with a degree of opening larger than the second molars.

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Pós-graduação em Agronomia (Horticultura) - FCA

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)