151 resultados para “textbooks”


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We studied in this work some aspects of the physics of sound and music as a tool for physics teaching. The theory of sound since it is generated by some stimulus to its uptake by the human body, in areas such as: frequency, intensity, tone and propagation. The literature of the subject research was combined with the study of free software that captures waves on a computer, using a microphone, and allows to analyze the waves and frequencies involved in the sound, being able to distinguish tones, frequencies and intensities. We have analyzed some instruments (guitar, harmonica and pitch), including voice, from the quantitative and qualitative point of view. Finally we analyze textbooks in their acoustic topics and try to understand how important these materials give to this topic in basic education. We suggest a teaching sequence that could be applied in a high school classroom

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Pós-graduação em Matemática em Rede Nacional - IBILCE

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Pós-graduação em Educação Matemática - IGCE

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Syphilis in pregnancy is a public health problem, responsible for the high intrauterine mortality rates. This article aims to present a review of historical and epidemiological aspects, clinical manifestations, diagnosis, the treatment of maternal and congenital syphilis, and its perinatal repercussions. The manuscript also describes the Brazilian main policies in public health care for pregnant women with syphilis and for congenital syphilis eradication. The set of words used were “congenital syphilis”, “syphilis in pregnancy” and “syphilis prenatal care”. The databases searched were PubMed (National Library of Medicine - USA), SciELO (Scientific Electronic Library Online), LILACS (Latin American and Caribbean Health Sciences), PAHO (Pan American Health Organization), IBECS, and WHOLIS Cochrane Library, from 1980 to 2011. Fifty-six articles were included in this review, 18 institutional technical manuals, two textbooks and 36 articles relating to maternal and congenital syphilis. The present review showed that there is a gap between intention and action needed to control and eradicate the disease especially with regard to the expansion of access, not only in relation to the number of visits recommended male gender, it is important to assess the quality of their content as well as the actions to be carried out between appointments.

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Pós-graduação em Planejamento e Análise de Políticas Públicas - FCHS

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Pós-graduação em Educação Matemática - IGCE

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Pós-graduação em Matemática em Rede Nacional - IBILCE

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Pós-graduação em Estudos Linguísticos - IBILCE

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Pós-graduação em Educação Matemática - IGCE

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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The main goal of this work is to investigate the effects of a nonlinear cubic term inserted in the Schrödinger equation for one-dimensional potentials studied in Quantum Mechanics textbooks. Being the main tool the numerical analysis in a large number of works, the analysis of this effect by this term in the potential itself, in order to work with an analytical solution, can be considered something new. For the harmonic oscillator potential, the analysis was made from a numerical method, comparing the result with the known results in the literature. In the case of the infinite well potential and the step potential, hoping to work with an analytical solution, by construction we started with the known wavefunction for the linear case noting the effects in the other physical quantities. The coupling of the physical quantities involved in this work has yielded, besides many complications in the calculations, a series of conditions on the existence and validity of the solutions in regard to the system possible configurations