Orientador: Agenor Montebello Filho / Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba / Made available in DSpace on 2018-07-22T13:01:13Z (GMT). No. of bitstreams: 1 Santos_Eroaldodos_M.pdf: 5500133 bytes, checksum: 8be4e00fd410db4de9adb06715aad464 (MD5) Previous issue date: 1996 / Resumo: O presente estudo teve por finalidade avaliar a degradação das soluções processadoras, revelador e fixador, das marcas Sillib e Kodak; prontas para uso, com filmes Kodak Ektaspeed (EP-21), em câmara escura portátil. As condições de experimentação foram: em recipientes de plástico (preto opaco) e em recipientes de vidro (incolor), protegidos e desprotegidos (com e sem tampa), simulando as condições de execução em consultórios odontológicos. As análises por densidade óptica das radiografias obtidas resultaram em dados que permitiram-nos constatar que as soluções protegidas tiveram um período médio de utilização menor que as soluções desprotegidas (27 e 42 dias, respectivamente). O número médio de radiografias produzidas até a degradação das soluções foi de 150 para as desprotegidas e de 100 para as protegidas. Ao longo do experimento não foram observadas alterações na degradação das soluções em função da variação da temperatura, do pH, ou da iluminação / Abstract: The present study had finality to measure the solutions of processing degradations, developer and fixer, of the marks Sillib and Kodak, ready for use, in portable darkroom. The condition of experimentation: in container of plastic (black opaque), and container of glass (colorless), protected and unprotected (with and without cover), following the conditions of execution in dental offices. The analysis by optic density of radiographs showed that the protected solutions had a medium period of utilization smaller than the unprotected (27 and 42 days, respectively). The medium number of radiographs processed, till the degradation of the solutions was 150 for the unprotected and 100 for the protected one. Along the test wasn't detected any alteration of the solutions degradation in function of variation of temperature, of pH or of illumination / Mestrado / Radiologia / Mestre em Odontologia

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Bug Fixer is a web-based application that complements lectures with hands-on exercises that encourage students to think about the logic in programs. Bug Fixer presents students with code that has several bugs that they must fix. The process of fixing the bugs forces students to conceptually think about the code and reinforces their understanding of the logic behind algorithms. In this work, we conducted a study using Bug Fixer with undergraduate students in the CSCE1040 course at University of North Texas to evaluate whether the system increases their conceptual understanding of the algorithms and improves their Software Testing skills. Students participated in weekly activities to fix bugs in code. Most students enjoyed Bug Fixer and recommend the system for future use. Students typically reported a better understanding of the algorithms used in class. We observed a slight increase of passing grades for students who participated in our study compared to students in other sections of the course with the same instructor who did not participate in our study. The students who did not report a positive experience provide comments for future improvements that we plan to address in future work.