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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
61

Contribui??es de projetos integrados na ?rea das ci?ncias da natureza ? alfabetiza??o cient?fica de estudantes do ensino m?dio

Duso, Leandro 19 March 2009 (has links)
Made available in DSpace on 2015-04-14T14:12:34Z (GMT). No. of bitstreams: 1 413616.pdf: 18926140 bytes, checksum: dda9f31565d86460fea2678291366ccb (MD5) Previous issue date: 2009-03-19 / Esta disserta??o apresenta uma pesquisa voltada a compreender o uso de projetos integrados na ?rea de Ci?ncias da Natureza, Matem?tica e suas tecnologias. O objetivo central foi avaliar contribui??es dessa metodologia ? Alfabetiza??o Cient?fica de estudantes de Ensino M?dio frente aos novos desafios sociais e ambientais, com base em um estudo de caso. O projeto integrado sobre mudan?as clim?ticas foi desenvolvido em uma turma de segundo ano de um col?gio particular de Ensino M?dio e T?cnico. As informa??es foram obtidas por meio de memoriais descritivos e atividades realizadas pelos estudantes, como relat?rios e apresenta??es multim?dias, e analisadas pelo m?todo de an?lise textual, na qual foram organizadas as seguintes categorias: as id?ias pr?vias dos estudantes em rela??o ao tema Aquecimento Global; os conceitos cient?ficos que os estudantes utilizam para resolver as situa??es-problema propostas; o envolvimento dos estudantes nos projetos de trabalho ao longo do processo da sua aplica??o; contribui??es de um projeto integrado sobre aquecimento global para desenvolver a consci?ncia dos temas atuais nos estudantes. As interpreta??es foram subsidiadas em interlocu??es te?ricas que contemplaram estudos ligados a interdisciplinaridade, problem?tica ambiental, enfoque em ci?ncia, tecnologia e sociedade (CTS) e aprendizagem significativa. A abordagem foi predominantemente qualitativa e descritiva, em coer?ncia com uma investiga??o hist?rico-narrativa. Foi constatado o envolvimento dos estudantes no processo de constru??o de conhecimento e a busca de solu??es de situa??es-problema, al?m de mudan?as positivas em rela??o ?s atitudes cotidianas e maior motiva??o e envolvimento no processo de aprendizagem.
62

O papel de um museu de ci?ncias constru?do por alunos de ensino fundamental na divulga??o cient?fica

Barcellos, Guy Barros 23 March 2012 (has links)
Made available in DSpace on 2015-04-14T14:12:52Z (GMT). No. of bitstreams: 1 439266.pdf: 2748028 bytes, checksum: ae224402dd34a5739562af6e8d20f0ea (MD5) Previous issue date: 2012-03-23 / This written essay presents analysis about data generated by the studend‟s participatory-construction of a Science Museum, inside a private school in Cachoeirinha (RS). The main objective of this study is to understand the participatory-construction‟s contribution to student‟s scientific learning, awakening the naturalistic intelligence. Methodology was mainly qualitative. Seeing the direct implication of the researcher, who was also the teacher, we adopted the recherche-action metodology. The research tools were a diary about the meetings, pictures, interviews and research texts produced by students. The results indicate that Museu da Natureza proved to be a reliable tool to Science learning, once provided moments of scientific endeavour to students. Furthermore, the students posed the importance of this experience to criativity development, since they found themselves challenged to learn researching and also teaching. / Esta disserta??o apresenta a an?lise de dados gerados a partir da constru??o-participativa de um Museu de Ci?ncias, com alunos Ensino Fundamental, em uma escola particular no munic?pio de Cachoeirinha (RS). O objetivo geral da pesquisa resume-se em compreender a contribui??o da constru??o deste museu para a alfabetiza??o cient?fica dos alunos envolvidos, oportunizando o despertar da intelig?ncia natural?stica. A abordagem metodol?gica foi predominantemente qualitativa. Os instrumentos de pesquisa consistiram no registro di?rio das reuni?es durante a montagem, fotografias, entrevistas com os alunos envolvidos e textos de pesquisa e divulga??o dos alunos-curadores. Dado o envolvimento direto do pesquisador, que tamb?m foi o professor-orientador do projeto, a metodologia de pesquisa adotada foi a pesquisa-a??o. Os dados obtidos foram submetidos a uma an?lise descritiva interpretativa e an?lise textual discursiva. Antes de explicitar a an?lise, o texto apresenta o acompanhamento do trabalho, um di?rio que mostra como ocorreu a constru??o-participativa. Os resultados obtidos indicam que o Museu da Natureza mostrou-se uma ferramenta confi?vel para alfabetiza??o cient?fica, porque proporciona aprendizados significativos, momentos de pesquisa e conviv?ncias que fogem do ensino conteudista e instrutivista. Os participantes chamaram aten??o para desenvolvimento de sua criatividade, uma vez que viram-se desafiados a aprender pesquisando e ensinando.
63

Estrat?gias pedag?gicas para o ensino de ci?ncias na EJA incluindo atividades em um museu interativo

Bertoglio, Diana Schuch 26 March 2013 (has links)
Made available in DSpace on 2015-04-14T14:12:58Z (GMT). No. of bitstreams: 1 448675.pdf: 1907195 bytes, checksum: afe3c99f9c135fd269589f4534c08469 (MD5) Previous issue date: 2013-03-26 / This research was developed with the intention of adding data to the sparse literature on science education to individuals on the modality of Education for Youth and Adults. As an employee of an interactive museum of sciences, the researcher recognize the contributions of this space for the formal teaching science and more than this she highlight its importance as a space for the dissemination and popularization of science and technology. Thus, through the research reported here we sought to investigate the contributions of activities program performed in a school environmental and also during a visit to the Museum of Science and Technology of PUCRS to science education for EJA students. Initially, it is necessary to know the needs and the expectations of students about the science classes to make them aware for the contents. It was found that the student s motivation is strongly linked to practices that enable dialogue, that value the everyday and experience of student s life; the complexibility of the knowledge is evidenced through the definition of some parameters according to the PISA (Programme for International Student Assessment); the apprenticeship is favoured due to the introduction of dialogic practice that consider student s previous knowledge, using questioning, refer to the systematization of the knowledge and the practice of the argumentation; some characteristics of the exhibition space like the interactivity and the possibility of join theory and practice sensitize the student, contributing to the formal education and finally the dialogue between the school and the museum qualifies the visit. / Esta pesquisa foi desenvolvida com o intuito de agregar dados ? escassa literatura referente ao ensino de ci?ncias para indiv?duos da modalidade de Educa??o para Jovens e Adultos. Como funcion?ria de um museu interativo de ci?ncias, a pesquisadora reconhece as contribui??es deste espa?o para o ensino formal de ci?ncias e, mais que isso, destaca a sua import?ncia como um espa?o para divulga??o e populariza??o da ci?ncia e da tecnologia. Dessa forma, atrav?s da pesquisa aqui relatada buscou-se investigar as contribui??es ao ensino de ci?ncias para estudantes da EJA de um programa de atividades realizadas em ambiente escolar e tamb?m durante uma visita??o ao Museu de Ci?ncias e Tecnologia da PUCRS. Inicialmente, conhecer as necessidades e as expectativas dos estudantes em rela??o ?s aulas de ci?ncias tornou-se essencial para sensibiliz?-los para os conte?dos. Constatou-se que a motiva??o dos estudantes est? fortemente ligada ?s pr?ticas que possibilitam o di?logo, que valorizam o cotidiano e a experi?ncia de vida do estudante jovem e adulto; a complexifica??o dos conhecimentos ? evidenciada por meio da defini??o de par?metros conforme o PISA (Programa Internacional de Avalia??o de Estudantes); a aprendizagem ? favorecida quando da ado??o de pr?ticas dial?gicas, que valorizam os conhecimentos pr?vios, utilizam-se da problematiza??o, encaminham ? sistematiza??o dos conhecimentos e ao exerc?cio da argumenta??o; caracter?sticas do espa?o expositivo como a interatividade e a possibilidade de aliar o estudo te?rico ao pr?tico sensibilizam o estudante para o aprendizado, contribuindo para o ensino formal e, por fim, o di?logo entre a escola e o museu qualifica a visita.
64

O federalismo brasileiro em perspectiva dial?gica / The Brazilian federalism in dialogical perspective

Raslan, Fabiana Duarte 24 May 2016 (has links)
Submitted by Sandra Pereira (srpereira@ufrrj.br) on 2018-02-07T13:57:40Z No. of bitstreams: 1 2016 - Fabiana Duarte Raslan.pdf: 526159 bytes, checksum: cea4714a9c13734a2c034d2727cd5a40 (MD5) / Made available in DSpace on 2018-02-07T13:57:40Z (GMT). No. of bitstreams: 1 2016 - Fabiana Duarte Raslan.pdf: 526159 bytes, checksum: cea4714a9c13734a2c034d2727cd5a40 (MD5) Previous issue date: 2016-05-24 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior, CAPES, Brasil. / Federalism is the subject of more than one of human knowledge: field consists of a form of political organization, and in this sense the political science field object at the same time translates through a set of rules governing the model state of political society that adopts it, and in this sense would be in the field of law. Starting from this premise, each area of scientific knowledge sought to formulate a general theory of federalism. Thus, by adopting a set of theoretical and methodological traditions of a subject to treat an object, namely, federalism, each area of knowledge built, in its way, a conception of Brazilian federalism. This study aimed to overcome a perspective of mere observation of these fields of knowledge, to propose a critical and reflective analysis of the Brazilian political thinking about the Brazilian federalism and its relation to democracy in two decisive moments of political transition in the history of Brazil: the first time when adopting the federative model for the first time in Brazil, which took place in the transition from Empire to Republic, and the second time, the democratic reopening that culminated in the 1988 Constitution, during which political science was already institutionalized in Brazil. To perform this analysis, a methodology that started from a perspective that surpass the more traditional demarcations of the fields of Political Science and Law was adopted. The idea is to understand how these enunciations of jurists and political scientists about the Brazilian federalism converge and diverge about the political and administrative organization in order in both periods. The Democratic State problems of law in its broadest sense touch both areas of knowledge, but the old and traditional theoretical constructs about the elements that make federalism are not sitting in the social complexity of contemporary, complexity this that calls for a scientific view interdisciplinary. / O federalismo constitui objeto de mais de um campo do conhecimento humano: consiste em uma forma de organiza??o pol?tica, sendo neste sentido objeto do campo da Ci?ncia Pol?tica, ao mesmo tempo em que se traduz por meio de um conjunto de normas que disciplinam o modelo de estado da sociedade pol?tica que o adota, e, neste sentido estaria no campo do Direito. Partindo-se desta premissa, cada ?rea do conhecimento cient?fico procurou formular uma teoria geral do federalismo. Assim, ao adotar um conjunto de tradi??es te?ricometodol?gicas de uma disciplina para tratar um objeto, qual seja, o federalismo, cada ?rea do conhecimento constru?ra, a seu modo, uma concep??o sobre o federalismo brasileiro. Este trabalho buscou superar uma perspectiva de mera observa??o destes campos do saber, para propor uma an?lise cr?tico-reflexiva do pensamento pol?tico brasileiro acerca do federalismo brasileiro e sua rela??o com a democracia em dois momentos decisivos de transi??o pol?tica na hist?ria do Brasil: o primeiro momento, quando da ado??o do modelo federativo pela primeira vez no Brasil, o que se deu na transi??o do Imp?rio para a Rep?blica, e no segundo momento, o da reabertura democr?tica que culminou na Constitui??o de 1988, per?odo no qual a Ci?ncia Pol?tica j? estava institucionalizada no Brasil. Para proceder esta an?lise, foi adotada uma metodologia que partiu de uma perspectiva que superasse as demarca??es mais tradicionais dos campos da Ci?ncia Pol?tica e do Direito. A ideia consiste em perceber como essas enuncia??es de juristas e cientistas pol?ticos acerca do federalismo brasileiro convergem e divergem acerca do modo de organiza??o pol?tico-administrativa em ambos os per?odos. Os problemas do Estado Democr?tico de Direito em sua mais ampla acep??o tocam ambas as ?reas do conhecimento, mas as velhas e tradicionais constru??es te?ricas a respeito dos elementos que integram o federalismo n?o encontram assento na complexidade social da contemporaneidade, complexidade esta que reclama uma vis?o cient?fica interdisciplinar.
65

An?lise das abordagens e discuss?es DO CONTE?DO DE PEDOLOGIA nos livros did?ticos de Geografia. / Analysis of approaches and discussions of the content of Pedology in the didatic books of Geography.

Prates, Roberta 05 November 2010 (has links)
Submitted by Sandra Pereira (srpereira@ufrrj.br) on 2018-08-24T12:57:37Z No. of bitstreams: 1 2010 - Roberta Prates Belem.pdf: 2832998 bytes, checksum: 8f3e43b92b370beb4b55a175c8605f21 (MD5) / Made available in DSpace on 2018-08-24T12:57:37Z (GMT). No. of bitstreams: 1 2010 - Roberta Prates Belem.pdf: 2832998 bytes, checksum: 8f3e43b92b370beb4b55a175c8605f21 (MD5) Previous issue date: 2010-11-05 / It is known that environmental issues are increasingly being focus of attention and discussion in society and, in this context, it can be said that the pedological study from the concept, evolution, formation and use of soil is essential in the context for the referring discussions to the society and nature, that are pertinent subjects to the Geographic Science, mainly in the Basic Education that acts in the formation, abilities and competences. For this reason, the study of Pedology becomes in such a way primordial in the scope of formal education (as for example the content of the PCN?s), as well as in the informal education, approaching the importance of its knowledge for the conservation, being this essential to the premises of a sustainable use. It is worth standing out that, although there is an effort of the Geography teachers in the treatment of teaching the soils related do nature in the Medium Education and mainly in contents of the didactic books, we come across problems of understanding and transposition of concepts, of partial and inconsistent explanations and that is several times unstable for the understanding of the processes and their formation. It can be said that in this context one of the most used instruments in the teaching-learning process is the didactic book, which has as its main use to present the study of contents, to motivate activities that allow the construction of knowledge from the reflection and solution of activities, from the observation of phenomena, from events and facts in different scales of the analysis, thus bringing about the development of the creativity and the criticism. Thus aiming at improving the quality of the didactic books in 2006, the Ministry of Education ? MEC ? established criteria for the adoption of this material of Geography through the National Program of the Didactic Book for the Medium Education ? PNLEM for 2007. The fifteen (15) didactic Geography books of the Medium Education recommended by MEC were analyzed exclusively in its aspect of Pedology, but specifically in the subject soil. In the works in question, the approaches of each author on the contents related to Pedology were analyzed and pointed out, as many solutions were provided, in the attempt to supply the necessity of understanding the contents of use and importance of its study. It is suggested thus a better organization and deepening of the subject in didactic books in order to stimulate the interest of the pupil, making him understand the relation and the importance of the subject to the daily questions of the world. / Sabe-se que as quest?es ambientais v?m cada vez mais sendo foco de aten??o e discuss?o na sociedade, e neste contexto pode-se dizer que o estudo pedol?gico a partir do conceito, evolu??o, forma??o e uso de solo ? essencial no contexto para as discuss?es referentes ? sociedade e natureza, que s?o temas pertinentes ? Ci?ncia Geogr?fica, principalmente no Ensino B?sico que atua na forma??o, habilidades e compet?ncias. Por esse motivo, o estudo da pedologia torna-se primordial tanto no ?mbito do ensino formal (como por exemplo, conte?do dos PCN?s), assim como na educa??o informal abordando a import?ncia de seu conhecimento para a conserva??o, sendo este, essencial ?s premissas de um uso sustent?vel. Cabe ressaltar que embora haja um esfor?o no tratamento do ensino de solos relacionado ? natureza em n?vel do Ensino M?dio pelos professores de geografia, e principalmente nos conte?dos dos livros did?ticos, depara-se com problemas de entendimento e transposi??o de conceitos, de explica??es parciais e inconsistentes, e que por diversas vezes ? inconsistente para a compreens?o dos processos e de sua forma??o. Pode-se dizer que neste contexto um dos instrumentos mais utilizados no processo de ensino-aprendizagem ? o livro did?tico, o qual tem como a utiliza??o para apresentar o estudo de conte?dos, motivar atividades que permita a constru??o do conhecimento, a partir da reflex?o e solu??o de atividades, da observa??o de fen?menos, de acontecimentos e fatos em diferentes escalas da an?lise, acarretando assim no desenvolvimento da criatividade e da cr?tica. Desta forma, visando melhorar a qualidade dos livros did?ticos em 2006 o Minist?rio da Educa??o ? MEC, estabeleceu crit?rios para ado??o desse material de Geografia atrav?s do Programa Nacional do Livro Did?tico para o Ensino M?dio ? PNLEM para 2007. Os quinze (15) livros did?ticos de Ensino M?dio de Geografia recomendados pelo MEC, foram analisados exclusivamente em sua abordagem de Pedologia, mas especificamente no tema Solos. Nas obras, em quest?o, foram analisadas e apontadas as abordagens de cada autor sobre os conte?dos relacionados a pedologia, tanto solu??es fornecidas na tentativa de suprir a necessidade de entendimento quanto a conte?dos de uso e import?ncia se seu estudo. Sugere-se assim, uma melhor organiza??o e aprofundamento do assunto nos livros did?ticos, a fim de despertar o interesse do aluno, fazendo-o entender a rela??o e a import?ncia do tema com as quest?es cotidianas do mundo.
66

郭麐詞論研究 / The Research of the Ci Poetry of Guo Lin

柯雅芬, Ka, Ya Fen Unknown Date (has links)
從浙西詞派已成強弩之末後,學者就將研究重點放在新興的常州詞派身上,是以對常州派未興、浙西派未衰前的詞壇樣貌未予釐清。再者,有「浙派殿軍」之稱的郭麐,力圖進行浙西詞派晚期之嬗變,為了明瞭浙西詞派後期的嬗變情形,以及釐清這段詞史上發展的脈絡,本文即以清代乾、嘉前後詞壇概況為經,而以郭麐詞論為緯,定名為「郭麐詞論研究」。本論文除了緒論與結論之外,共分為六章:第一章〈郭麐其人其事〉:對其生平試作梗概之介紹,希望從中了解郭麐生平經歷是如何影響,並形成他個人特有之生命情調以及其文學觀念與創作表現。第二章〈郭麐詞論產生之背景〉:詞學的產生,無不有其特定的時代背景和詞學自身之歷史發展。所謂知人要論世,為了深入了解郭麐詞論形成的因素及對其所處之時代背景作一通盤了解,筆者擬就其時代背景以及有清一代之詞學流變概況作一探討。第三章〈郭麐詞論淵源〉:郭麐既以浙西派成員自居,故其論詞則盛推朱、厲,並以姜、張為宗。因此,筆者擬同時參看朱、厲詞論,一方面可理解郭麐詞論精髓,一方面也可看出他承繼浙西派詞論的地方。第四章〈郭麐詞論主張(上)〉:由於郭麐所處時代已與朱、厲不同,所要面對、解決之詞壇問題亦有所不同,因此,郭麐詞論可說既有所承繼也有所創新,故本文另就其對浙派詞論改革、發展、補充之處,加以體會和整理,分別剖析郭麐對詞體之內容、流派、創作等方面之主張。第五章〈郭麐詞論主張(下)〉:由於郭麐《詞品》是詞史上第一部有系統地以詞體風格為分類品評之著作,故筆者專立一章來探究郭麐《詞品》之內涵、體製特色與價值,以得見郭麐在詞體風格方面的看法。第六章〈郭麐詞論之特色、價值與影響〉:在針對郭麐詞論的背景、淵源、內容等各方面作深入分析之後,綜合以上各章之探討結果,為郭麐詞學作整體性的評價及省視。並以此為基礎,因鑑於各家對郭麐的評論,將之歸納分析,期對郭麐詞論之成就入一中肯評價。
67

A Study on Xin Qi Ji's Use of Rhapsody Writing Techniques in His Lyrics

¡V, Cheng 03 September 2012 (has links)
Because of competing for the recreational needs of the new sound, it was resulting in long tones boom and changing the dominant status of the short term in Preceding Song Dynasty. Regarding Fu as Ci was learning the writing skills from Ci to expand the original technique of expression of Ci. It was the new practice in response to long tones or slow terms. The implication of this word "Fu" was based on the meaning of the repeated narrative, and both had the virtues of the Sao Fu, Xun Fu, prosaic Fu, antithetic Fu and metric Fu. Xin Qi-ji¡¦s actual performance on regarding Fu as Ci, and his repeated narrative used in the flow of time, ode to history and nostalgia, the category of thing, the entire space and the specific object, which were able to narrate with wonderful words, from that we can see the thousands of states. Excessive parallelism and antithesis not only reached to the effects of repeated narrative, but the antithesis caused by the double sentences and top word were both closed to the practice of metric Fu. It was also the example of lyricization. Stacks of allusions, the Fu requires itself to be very perfect, and it was appropriate for the poetry. The allusion-using of Xin¡¦s Ci, such as Congratulating the groom, was like the Hate Fu. Sao Fu and prosaic Fu were good at playing an active part in the imagination, and then falsely declared the otherness in order to modify. Xin¡¦s Ci of Magnolia slow used ¡§asking-God form¡¨ to issue continuously the contradictory questions, and they created the unreasonable and wonderful sense. It was the amazing performance of Xin Qi-ji¡¦s imagination. Hypothesized question and answer was able to use the third party to express the issues which were difficult to say directly. The one purpose was to be far from the conflict of interests, and the other purpose was to expound circuitously with superfluous words. The situation that the poets imitated the Fu by enchanting with the style of Fu writer, such as Liu Yong imitated Song Yu, and Xin Qi-ji liked to quote from Qu Yuan¡¦s Fu. By imitating deliberately the Fu, such as Water Dragon Verse was similar to Luo God Fu, with the use of rhyme ¡§xie¡¨. By completely imitating and shifting the words, with the use of famous sentences written by predecessors, it met one¡¦s own spirituality. The allegory of prosaic Fu focusd on the end of the article in order to boost the whole article¡¦s momentum, and because Xin Qi-ji had a sentimental mind, it was easy to see the allegory spirit appeared on the end of his Fu.
68

Defeitos de esmalte em dentes dec?duos: preval?ncia e fatores associados. / Enamel defects in the primary teeth: prevalence and associated factors

Faria, Patr?cia Corr?a de January 2011 (has links)
Submitted by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2015-01-23T16:14:44Z No. of bitstreams: 5 patricia.pdf: 1377961 bytes, checksum: 55ce7c1439d8b1123461e7f1f40d7a17 (MD5) license_url: 52 bytes, checksum: 3d480ae6c91e310daba2020f8787d6f9 (MD5) license_text: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5) license.txt: 2109 bytes, checksum: aa477231e840f304454a16eb85a9235f (MD5) / Approved for entry into archive by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2015-02-10T10:38:49Z (GMT) No. of bitstreams: 5 patricia.pdf: 1377961 bytes, checksum: 55ce7c1439d8b1123461e7f1f40d7a17 (MD5) license_url: 52 bytes, checksum: 3d480ae6c91e310daba2020f8787d6f9 (MD5) license_text: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5) license.txt: 2109 bytes, checksum: aa477231e840f304454a16eb85a9235f (MD5) / Made available in DSpace on 2015-02-10T10:38:49Z (GMT). No. of bitstreams: 5 patricia.pdf: 1377961 bytes, checksum: 55ce7c1439d8b1123461e7f1f40d7a17 (MD5) license_url: 52 bytes, checksum: 3d480ae6c91e310daba2020f8787d6f9 (MD5) license_text: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5) license.txt: 2109 bytes, checksum: aa477231e840f304454a16eb85a9235f (MD5) Previous issue date: 2013 / Os estudos sobre o desenvolvimento de defeitos de esmalte e a associa??o com as condi??es natais e p?s-natais ainda s?o escassos. Assim, este estudo teve como objetivo avaliar a preval?ncia de defeitos de esmalte em dentes dec?duos e verificar se prematuridade, peso ao nascimento e vari?veis sociodemogr?ficas podem estar associados a tais defeitos. Foi realizado um estudo transversal com 381 crian?as com idade entre 3 e 5 anos. Os dados foram coletados atrav?s de exame cl?nico e entrevistas com os pais durante Campanha Nacional de Vacina??o. O diagn?stico dos defeitos de esmalte foi realizado utilizando-se o Developmental Defects of Enamel Index (DDE Index). Atrav?s de entrevista foram coletadas informa??es sobre aspectos sociodemogr?ficos, gesta??o, peso ao nascimento, prematuridade da crian?a e amamenta??o. A an?lise dos dados foi realizada utilizando-se o programa SPSS for Windows 17.0 e incluiu a distribui??o de frequ?ncia, testes qui-quadrado e Exato de Fisher e regress?o de Poisson. A preval?ncia de defeito de esmalte foi de 29,9% e a opacidade demarcada foi o tipo de defeito mais frequente. Crian?as com peso muito baixo ao nascimento apresentam mais chance de desenvolver defeitos de esmalte [RP (IC95%) = 2,7 (1,66-4,61)]. A prematuridade e as vari?veis sociodemogr?ficas n?o foram fatores associados aos defeitos de esmalte. Crian?as com peso muito baixo ao nascimento apresentaram maior preval?ncia de defeitos de esmalte nos dentes dec?duos. / Disserta??o (Mestrado) ? Programa de P?s-Gradua??o em Odontologia, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2011. / ABSTRACT Studies regarding the development of enamel defects and association with natal and postnatal conditions are scarce. Thus, the aim of this study was to evaluate the prevalence of enamel defects in primary teeth and determine whether prematurity, birth weight and sociodemographic variables may be associated with such defects. This was a cross-sectional study with 381 children aged between 3 and 5 years. Data were collected through clinical examination and interviews with parents during the National Immunization Day. The diagnosis of enamel defects was performed using the Development Defects of Enamel Index (DDE Index). During interviews, information were collected on sociodemographic aspects, pregnancy, birth weight, child prematurity and breastfeeding. Statistical analysis was performed using the SPSS software for Windows 17.0 and involved descriptive analysis, the Fisher?s test, qui-square test and Poisson regression. The prevalence of enamel defects was 29.9% and demarcated opacity was the most frequent type of defect. Children with low birth weight presented greater prevalence of enamel defects [PR (CI 95%) = 2,7 (1.66-4.61)]. Prematurity and the sociodemographic variables were not factors associated with enamel defects. In this study, children with very low birth weight had higher prevalence of enamel defects in deciduous teeth.
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Efeito pr?-operat?rio da dexametasona e da metilprednisolona no controle da dor, edema e trismo ap?s cirurgia de terceiro molar: um ensaio cl?nico randomizado, triplo-cego, boca dividida. / Preemptive effect of dexamethasone and methilprednisolone on pain, swelling and trismus?after third molar surgery: a split-mouth randomized triple-blind clinical trial

Alc?ntara, Carlos Eduardo Pinto de January 2012 (has links)
Submitted by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2015-01-23T16:14:42Z No. of bitstreams: 5 carlos.pdf: 1077384 bytes, checksum: 83eb6b248c6848161b2017a683c19682 (MD5) license_url: 52 bytes, checksum: 3d480ae6c91e310daba2020f8787d6f9 (MD5) license_text: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5) license.txt: 2109 bytes, checksum: aa477231e840f304454a16eb85a9235f (MD5) / Approved for entry into archive by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2015-02-10T11:09:38Z (GMT) No. of bitstreams: 5 carlos.pdf: 1077384 bytes, checksum: 83eb6b248c6848161b2017a683c19682 (MD5) license_url: 52 bytes, checksum: 3d480ae6c91e310daba2020f8787d6f9 (MD5) license_text: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5) license.txt: 2109 bytes, checksum: aa477231e840f304454a16eb85a9235f (MD5) / Made available in DSpace on 2015-02-10T11:09:38Z (GMT). No. of bitstreams: 5 carlos.pdf: 1077384 bytes, checksum: 83eb6b248c6848161b2017a683c19682 (MD5) license_url: 52 bytes, checksum: 3d480ae6c91e310daba2020f8787d6f9 (MD5) license_text: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5) license.txt: 2109 bytes, checksum: aa477231e840f304454a16eb85a9235f (MD5) Previous issue date: 2013 / O objetivo do presente estudo foi realizar uma avalia??o comparativa do efeito da dexametasona e da metilprednisolona no controle da dor, edema e limita??o da abertura bucal ap?s a extra??o de terceiros molares impactados. Dezesseis pacientes saud?veis (3 homens e 13 mulheres) com m?dia de 20,3 (DP= 1,25) anos de idade foram submetidos ? extra??o bilateral dos terceiros molares com intervalo de tr?s a quatro semanas entre as duas cirurgias. Uma hora antes de cada procedimento cir?rgico foi administrada em dose ?nica, por via oral, dexametasona 8 mg ou metilprednisolona 40 mg. Durante os intervalos p?s-operat?rios de 24, 48 e 72 horas e sete dias, o edema linear foi determinado utilizando medidas na face e o trismo atrav?s da abertura bucal m?xima. A dor p?s-operat?ria foi auto-registrada pelo paciente utilizando escala anal?gica visual durante as 72 horas iniciais, em intervalos de oito horas. A an?lise estat?stica envolveu an?lise descritiva, teste McNemar, Teste T pareado e Wilcoxon (p<0,05). A dexametasona apresentou melhor controle do edema em todos os per?odos p?s-operat?rios (p <0,02) e da abertura bucal dois dias ap?s a cirurgia (p = 0,029). Com rela??o ? dor n?o foi observada diferen?a estatisticamente significativa entre os medicamentos. A administra??o pr?-perat?ria de 8 mg de dexametasona apresentou melhor controle do edema e da limita??o da abertura bucal do que a metilprednisolona na dose de 40 mg, muito embora os medicamentos n?o diferiram no controle da dor. / Disserta??o (Mestrado) ? Programa de P?s-Gradua??o em Odontologia, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2012. / ABSTRACT The?aim of this study?was to make a comparative assessment of the effect of?dexamethasone and methylprednisolone?to control pain, swelling?and limitation?of mouth opening after extraction of?impacted third molars.?Sixteen healthy patients (3 men and 13 women)?with a mean age?of 20.3 (SD = 1,25) years underwent bilateral extraction?of?third molars with na interval of three to four weeks between the two surgeries. One hour?before each?surgical procedure?a single oral dose?of?dexamethasone 8?mg or methylprednisolone?40?mg was administered.?During the postoperative?intervals?of 24,?48?and 72?hours and?seven days, the swelling was determined using?linear?measures?in the?face and trismus?by?maximum mouth opening. The?postoperative pain?was self-recorded?by the patient using?visual analogue scale?in?72 hours with an interval of eight hours. Statistical analysis involved descriptive analysis, McNemar test, Wilcoxon?and paired T test (p?<0.05). Dexamethasone showed better control of swelling in all?postoperative periods (p?<0.02) and of mouth opening two days after surgery (p = 0.029). Regarding pain there was no statistically significant difference between the drugs. Preemptive dexamethasone?8 mg showed better control of swelling?and limitation?of mouth opening than methylprednisolone 40 mg, but there was no difference?in pain control.
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Efici?ncia nutricional, ?rea foliar e produtividade de planta??es de eucalipto em diferentes espa?amentos estimados com redes neurais artificiais.

Lafet?, Bruno Oliveira 29 February 2012 (has links)
Submitted by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2015-01-23T14:01:52Z No. of bitstreams: 5 11.pdf: 1601673 bytes, checksum: 39d0ae1d4c83f9f75b192f272b66de11 (MD5) license_url: 52 bytes, checksum: 3d480ae6c91e310daba2020f8787d6f9 (MD5) license_text: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5) license.txt: 2109 bytes, checksum: aa477231e840f304454a16eb85a9235f (MD5) / Approved for entry into archive by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2015-02-10T11:12:29Z (GMT) No. of bitstreams: 5 license_url: 52 bytes, checksum: 3d480ae6c91e310daba2020f8787d6f9 (MD5) license_text: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5) license.txt: 2109 bytes, checksum: aa477231e840f304454a16eb85a9235f (MD5) 11.pdf: 1601673 bytes, checksum: 39d0ae1d4c83f9f75b192f272b66de11 (MD5) / Made available in DSpace on 2015-02-10T11:12:29Z (GMT). No. of bitstreams: 5 license_url: 52 bytes, checksum: 3d480ae6c91e310daba2020f8787d6f9 (MD5) license_text: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5) license.txt: 2109 bytes, checksum: aa477231e840f304454a16eb85a9235f (MD5) 11.pdf: 1601673 bytes, checksum: 39d0ae1d4c83f9f75b192f272b66de11 (MD5) Previous issue date: 2012 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (CAPES) / O emprego de pr?ticas silviculturais apropriadas associado ao uso de m?todos de avalia??o nutricional e t?cnicas estat?sticas avan?adas pode ser uma alternativa vi?vel no estabelecimento de crit?rios pr?ticos de caracteriza??o e classifica??o nutricional, al?m de permitir obter informa??es sobre a din?mica de crescimento dentro de povoamentos florestais, enriquecendo estudos sobre a sustentabilidade e produ??o de um ecossistema florestal. O presente trabalho foi dividido em tr?s cap?tulos. Os objetivos foram avaliar os coeficientes de utiliza??o biol?gicos (CUB?s) dos nutrientes pelo eucalipto, a efici?ncia e possibilidade de utiliza??o das redes neurais artificiais (RNA) para obter os CUB?s e estimativas para a biomassa de tronco sob diferentes espa?amentos. O experimento foi instalado em dezembro de 2002 utilizando-se um h?brido de Eucalyptus grandis W. Hill ex Maiden x Eucalyptus camaldulensis Dehnh sobre Latossolo Vermelho-Amarelo em relevo plano a 1097 m altitude. Adotou-se o delineamento em blocos ao acaso sendo estudado, em tr?s blocos, o efeito de cinco espa?amentos de plantio: T1 - 3,0 x 0,5 m; T2 - 3,0 x 1,0 m; T3 - 3,0 x 1,5 m; T4 - 3,0 x 2,0 m e T5 - 3,0 x 3,0 m. Realizou-se o invent?rio florestal cont?nuo nas idades de 48, 61, 73, 85 e 101 meses. Em cada ?rvore-amostra por unidade experimental na ?ltima idade foram: quantificada a biomassa; mensurada a ?rea e per?metro foliar, ?rea foliar espec?fica e realizada a an?lise qu?mica de N, P, K, Ca, Mg e S para amostras composta (ao longo do fuste) e simples (regi?o do DAP) dos componentes. Os resultados foram submetidos ? ANOVA, regress?o e a aplica??o das RNA. A modelagem por redes neurais artificiais demonstrou-se adequada para estimar a produ??o de biomassa de tronco em fun??o da idade sob diferentes espa?amentos, utilizando o DAP e per?metro foliar como vari?veis preditoras. N?o houve grande varia??o da efici?ncia de uso dos nutrientes entre os espa?amentos, principalmente para o tronco. A rede neural artificial foi eficiente em estimar a efici?ncia de uso dos nutrientes. A modelagem por redes neurais artificiais utilizando-se apenas amostra da casca na regi?o do DAP demonstrou ser adequada para a estimativa do coeficiente de utiliza??o biol?gico do tronco. / Disserta??o (Mestrado) ? Programa de P?s-Gradua??o em Ci?ncia Florestal, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2012. / ABSTRACT The use of appropriate silvicultural practices associated with the use of methods of nutritional assessment and advanced statistical techniques can be a viable alternative to establish practical criteria characterization and classification of nutritional status, and allows information on the dynamics of growth in forest stands, enriching studies on the sustainability and production of a forest ecosystem. This work was divided into three chapters. The objectives were assess the coefficient of biological use (CUB's) of nutrients by eucalyptus trees, the efficiency and possible use of artificial neural networks (RNA) for the CUB's and biomass trunk under different spacings. The research plots was installed in december 2002 using a hybrid of Eucalyptus grandis W. Hill ex Maiden X Eucalyptus camaldulensis Dehnh. The statistical design was randomized blocks being studied, in three blocks, the effect of different planting spacings: T1???3,0?x?0,5?m, T2???3,0?x?1,0?m, T3???3,0?x?1,5?m, T4???3,0?x?2,0?m e T5???3,0?x?3,0?m. Data collection was carried out at ages 48, 61, 73, 85 and 101 months. In each sample-tree per experimental unit in the last age were: quantified biomass; measured leaf area, leaf perimeter, specific leaf area and chemical analysis of N, P, K, Ca, Mg and S for composite samples (along the stem) and simple samples (the region of the DAP) of components. Statistical analysis of the data consisted of ANOVA, regression and application of RNA. The modeling by artificial neural networks demonstred to be adequate to estimate the biomass of the trunk in relation to age at different spacings, using the DBH and perimeter leaf as predictors variables. There wasn't wide variation in efficiency use nutrient among spacings, especially for the trunk. The artificial neural network was effective in estimating the efficiency of nutrient use. The modeling by artificial neural networks using only sample in the DAP region proved to be adequate for estimating the coefficient of biological use of stem.

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