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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.
1

Curso de tecnologia em produ??o de cacha?a: representa??o social dos estudantes sobre a cacha?a e o consumo de ?lcool / Course of technology in the production of cacha?a: social representation of students on the cacha?a and alcohol consumption

Oliveira, Pedro Paulo 30 June 2011 (has links)
Submitted by Sandra Pereira (srpereira@ufrrj.br) on 2016-10-05T14:04:06Z No. of bitstreams: 1 2011 - Pedro Paulo Oliveira.pdf: 855841 bytes, checksum: 8daca2855c71433426197e9c804784e6 (MD5) / Made available in DSpace on 2016-10-05T14:04:06Z (GMT). No. of bitstreams: 1 2011 - Pedro Paulo Oliveira.pdf: 855841 bytes, checksum: 8daca2855c71433426197e9c804784e6 (MD5) Previous issue date: 2011-06-30 / Secretaria de Educa??o Profissional e Tecnologica - Setec/MEC. / Social Representations are structures of individual knowledge that are shared and that enable a group understand the reality, to maintain their integrity and support their practices. This work had the purpose to know the Social Representations of Cacha?a and its relationship with the consumption of alcohol for students in the course of Technology in the Production of Cacha?a of Federal Institute of the North of Minas Gerais (IFNM) -Campus Salinas. Using the diagnosis of factors that had motivated these young people for this college course, to identifying if the consumption and the conceptions about cacha?a at these young people were affected by this college course, as well as the factors that the students has related for to drinking cacha?a as: occasions, friendship, the correlation with the family habits, the risks to health and social problems. The research was carried out in IFNMG, in the year 2010, with forty-eight students in the upper course of Technology in the Production of Cacha?a. It was consisted of three stages: 1- socioeconomic characteristics of students, with structured questions; 2- Evaluation of the knowledge of the students about cacha?a that understood the use of a Likert scale of five points; 3- Social representation of the cacha?a with roadmap built with open-ended questions, in order to encourage the discourse, and the interviews were recorded, transcribed and analyzed by technique of the Collective Subject Discourse, on the basis of the theory of Social Representations, using the software Qualiquantisoft. Thus, it was found that the universe of the students presents a predominance of women (62.5 %) and the age range of 18 to 21 years old (56.2 % ). The majority (87 % ), concluded the middle school at a public school in regular course (90 %) and are living in an urban area (81 %) in the city of Salinas (86 % ). On the social representations for the consumption of alcohol, the students have attitudes predominantly unfavorable to the consumption of alcoholic beverages; they hadn't believe that the young people has drunk alcohol for "to feel sad or annoying" or "feel more integrated and identified with their group"; the motivation more favorable on the consumption of alcoholic beverages were "to relax or calm down the nerves" and "to feel more adults". In terms of Knowledge and Beliefs, the students believe that alcohol can cause physical dependence" and the consumption of cacha?a "helps to unwind/ encourage". It was verifie that the social representations of students about the properties and the consumption of alcoholic beverage and cacha?a, presents a great level of information and they has attitudes predominantly negative in relation to alcohol consumption. The representation to the attraction of the cacha?a from Salinas, it was found that "The fame of the cacha?a and the city" as the most prevalent among the answers. Therefore, for these students, the biggest attraction of cacha?a of Salinas maintains a direct correlation with the marketing that has been attributed to the cacha?a this region. However, they have believed on the factors of quality of the cacha?a once they showed an expressive representation in the categories involved in the production and quality as: "sensory attributes", "quality" and "manufacture craft". / As Representa??es Sociais s?o estruturas de conhecimento individuais, compartilhadas, que permitem a um grupo entender uma realidade, manter sua integridade, direcionar e fundamentar suas pr?ticas. Esta pesquisa teve como prop?sito conhecer as Representa??es Sociais da Cacha?a e a sua rela??o com o consumo de ?lcool para alunos do curso superior Tecn?logo em Produ??o de Cacha?a do no Instituto Federal do Norte de Minas Gerais (IFNM)-Campus Salinas, atrav?s do diagn?stico dos fatores que motivaram o ingresso desses jovens neste curso; identificando se o consumo de e as concep??es sobre cacha?a pelos jovens foram afetados pelo seu ingresso no curso, bem como os fatores que os alunos relacionam com ato de beber cacha?a como: ocasi?es, companhias, a correla??o com os h?bitos familiares, os riscos ? sa?de e problemas sociais. A pesquisa foi realizada no IFNMG, no ano de 2010, com quarenta e oito alunos do curso superior de Tecnologia em Produ??o de Cacha?a e consistiu de tr?s etapas: 1-a caracteriza??o socioecon?mica dos discentes com um roteiro estruturado; 2-a avalia??o do conhecimento dos alunos sobre cacha?a que compreendeu a utiliza??o de uma escala do tipo Likert de cinco pontos; 3- a pesquisa de representa??o social da cacha?a com roteiro constru?do com quest?es abertas, a fim de incentivar o discurso, sendo os discursos gravados, transcritos e analisados pela t?cnica do Discurso do Sujeito Coletivo, com base na teoria das Representa??es Sociais, utilizando o software Qualiquantisoft. Assim, verificou-se que o universo dos sujeitos do presente estudo apresenta um predom?nio de mulheres (62,5%) e a faixa et?ria de 18 a 21 anos de idade (56,2%). A sua maioria (87%), concluiu o ensino m?dio em escola p?blica, em curso regular (90%) e s?o residentes em ?rea urbana (81%) no munic?pio de Salinas (86%). Nas representa??es sociais sobre o consumo de ?lcool, os sujeitos desta pesquisa apresentam atitudes predominantemente desfavor?veis ao consumo de bebidas alco?licas; n?o acreditam que os jovens bebam por ?se sentirem tristes ou aborrecidos? ou para ?se sentirem mais integrados e identificados com o seu grupo?; as motiva??es mais favor?veis sobre o consumo de bebida alco?lica foram ?para relaxar ou acalmar os nervos? e ?para se sentirem mais adultos?. Quanto ao Conhecimento e Cren?as eles acreditam que o ?lcool ?pode causar depend?ncia f?sica? e o consumo de cacha?a ?ajuda a descontrair/ desinibir?.
2

Contextualizando o sistema de concess?o de di?rias e passagens nas atividades extraclasse do curso t?cnico em agropecu?ria do Col?gio Agr?cola Dom Agostinho Ikas - CODAI - Universidade Federal Rural de Pernambuco

NUNES, Eliete Maria 22 March 2016 (has links)
Submitted by Jorge Silva (jorgelmsilva@ufrrj.br) on 2017-10-24T17:53:48Z No. of bitstreams: 1 2016 - Eliete Maria Nunes.pdf: 1520485 bytes, checksum: d204b6435e26aff0c57297932b7ee6ac (MD5) / Made available in DSpace on 2017-10-24T17:54:18Z (GMT). No. of bitstreams: 1 2016 - Eliete Maria Nunes.pdf: 1520485 bytes, checksum: d204b6435e26aff0c57297932b7ee6ac (MD5) Previous issue date: 2016-03-22 / In this research we seek to highlight the use of the Sistema de Concess?o de Di?rias e Passagens ? SCDP as an important regulatory system to enable the expansion of extracurricular activities of Col?gio Agr?cola Dom Agostinho Ikas - CODAI/UFRPE, due to its location in the urban area, and in order to meet the curriculum requirements of the technical course in Agriculture, managing the accommodation and travel tickets offered to support the teachers in their practical lessons, field classes and technical visits. We aim to analyze the functionality of SCDP, barriers and potentials in CODAI. We chose a qualitative approach, to be appropriate to the study in question. As a data collection technique, we applied semi-structured interviews with 06 (six) teachers who use the system regularly, and then we did the content analysis. The results confirmed the need and importance of using SCDP, as a support system for the technical and technological professional education environment of CODAI / UFRPE. / Nesta pesquisa procuramos destacar o uso do Sistema de Concess?o de Di?rias e Passagens ? SCDP, como um sistema normativo importante para possibilitar a expans?o das atividades extraclasse do Col?gio Agr?cola Dom Agostinho Ikas - CODAI/UFRPE, devido a sua localiza??o na ?rea urbana, e para atender ?s exig?ncias curricular do Curso T?cnico em Agropecu?ria, na concess?o de di?rias e passagens para os docentes realizarem suas aulas pr?ticas, aulas de campo e visitas t?cnicas. Temos como objetivo, analisar a funcionalidade do SCDP, seus entraves e possibilidades no CODAI. Elegemos uma abordagem qualitativa, por estar apropriada ao estudo em quest?o, utilizamos como t?cnica de coleta de dados, a aplica??o de uma entrevista semiestruturada, com 06 (seis) docentes que utilizam o sistema com regularidade, e em seguida, fizemos a an?lise de conte?do. Os resultados comprovaram a necessidade e import?ncia do uso do SCDP que funciona como suporte para melhorias no ambiente da educa??o profissional t?cnica e tecnol?gica do CODAI/UFRPE, atendendo as suas popula??es.
3

Condutividade t?rmica de rochas: uma aplica??o para granitos ornamentais

Figueiredo, Edgar Romeo Herrera de 24 August 2006 (has links)
Made available in DSpace on 2015-03-13T17:08:11Z (GMT). No. of bitstreams: 1 EdgarRHF.pdf: 2264577 bytes, checksum: e51665295f290a9fc195ade872b55719 (MD5) Previous issue date: 2006-08-24 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior / This dissertation focuses on rock thermal conductivity and its correlations with petrographic, textural, and geochemical aspects, especially in granite rocks. It aims at demonstrating the relations of these variables in an attempt to enlighten the behavior of thermal effect on rocks. Results can be useful for several applications, such as understanding and conferring regional thermal flow results, predicting the behavior of thermal effect on rocks based upon macroscopic evaluation (texture and mineralogy), in the building construction field in order to provide more precise information on data refinement on thermal properties emphasizing a rocky material thermal conductivity, and especially in the dimension stone industry in order to open a discussion on the use of these variables as a new technological parameter directly related to thermal comfort. Thermal conductivity data were obtained by using Anter Corporation s QuicklineTM -30 a thermal property measuring equipment. Measurements were conducted at temperatures ranging between 25 to 38 OC in samples with 2cm in length and an area of at least 6cm of diameter. As to petrography data, results demonstrated good correlations with quartz and mafics. Linear correlation between mineralogy and thermal conductivity revealed a positive relation of a quartz percentage increase in relation to a thermal conductivity increase and its decrease with mafic minerals increase. As to feldspates (K-feldspate and plagioclase) they show dispersion. Quartz relation gets more evident when compared to sample sets with >20% and <20%. Sets with more than 20% quartz (sienogranites, monzogranites, granodiorites, etc.), exhibit to a great extent conductivity values which vary from 2,5 W/mK and the set with less than 20% (sienites, monzonites, gabbros, diorites, etc.) have an average thermal conductivity below 2,5 W/mK. As to textures it has been verified that rocks considered thick/porphyry demonstrated in general better correlations when compared to rocks considered thin/medium. In the case of quartz, thick rocks/porphyry showed greater correlation factors when compared to the thin/medium ones. As to feldspates (K-feldspate and plagioclase) again there was dispersion. As to mafics, both thick/porphyry and thin/medium showed negative correlations with correlation factor smaller than those obtained in relation to the quartz. As to rocks related to the Streckeisen s QAP diagram (1976), they tend to fall from alcali-feldspates granites to tonalites, and from sienites to gabbros, diorites, etc. Thermal conductivity data correlation with geochemistry confirmed to a great extent mineralogy results. It has been seen that correlation is linear if there is any. Such behavior could be seen especially with the SiO2. In this case similar correlation can be observed with the quartz, that is, thermal conductivity increases as SiO2 is incremented. Another aspect observed is that basic to intermediate rocks presented values always below 2,5 W/mK, a similar behavior to that observed in rocks with quartz <20%. Acid rocks presented values above 2,5 W/mK, a similar behavior to that observed in rocks with quartz >20% (granites). For all the other cases, correlation factors are always low and present opposite behavior to Fe2O3, CaO, MgO, and TiO2. As to Al2O3, K2O, and Na2O results are not conclusive and are statistically disperse. Thermal property knowledge especially thermal conductivity and its application in the building construction field appeared to be very satisfactory for it involves both technological and thermal comfort aspects, which favored in all cases fast, cheap, and precise results. The relation between thermal conductivity and linear thermal dilatation have also shown satisfactory results especially when it comes to the quartz role as a common, determining phase between the two variables. Thermal conductivity studies together with rocky material density can function as an additional tool for choosing materials when considering structural calculation aspects and thermal comfort, for in the dimension stone case there is a small density variation in relation to a thermal conductivity considerable variation / Esta disserta??o aborda o tema condutividade t?rmica de rochas e sua correla??o com aspectos petrogr?ficos, texturais e geoqu?micos principalmente em rochas gran?ticas. O intuito ? demonstrar as rela??es destas vari?veis tentando elucidar o comportamento do efeito t?rmico nas rochas. Os resultados poder?o ser ?teis em diversas aplica??es, por exemplo, no entendimento e aferi??o de resultados de fluxo t?rmicos regionais, na predi??o do comportamento t?rmico de rochas baseados na avalia??o macrosc?pica (textura e mineralogia), no segmento de constru??o civil com o objetivo de fornecer informa??es mais precisas no que diz respeito ao refinamento de dados sobre propriedades t?rmicas enfatizando a condutividade t?rmica de materiais rochosos e ainda especialmente na ind?stria de rochas ornamentais com o objetivo de se abrir uma discuss?o sobre a utiliza??o destas vari?veis como novo par?metro tecnol?gico diretamente relacionado ao conforto t?rmico. Os dados de condutividade t?rmica foram obtidos a partir de um equipamento medidor de propriedades t?rmicas da marca Anter Corporation, modelo QuicklineTM -30. As medidas foram realizadas a temperaturas variando entre 25 e 38 OC em amostras com 2cm de espessura e ?rea com pelo menos 6cm de di?metro. Quanto aos dados petrogr?ficos os resultados demonstraram haver boas correla??es com o quartzo e m?ficos. A correla??o linear entre a mineralogia e a condutividade t?rmica revelou uma rela??o positiva do aumento da condutividade t?rmica em fun??o do aumento da percentagem de quartzo e diminui??o com o aumento de minerais m?ficos. J? os feldspatos (K-feldspato e plagiocl?sio) mostram dispers?o. A rela??o do quartzo fica mais evidente quando s?o comparados os conjuntos de amostras com >20% e <20%. O conjunto com mais de 20% de quartzo (sienogranitos, monzogranitos, granodioritos, etc.), exibe em sua grande maioria, valores de condutividade que variam acima de 2,5 W/mK, j? o conjunto com menos de 20% (sienitos, monzonitos, gabros, dioritos, etc.) tem condutividade t?rmica m?dia abaixo de 2,5 W/mK. Quanto as texturas verificou-se que os litotipos considerados grossos/porfir?ticos demonstraram no conjunto geral melhores correla??es quando comparados com os litotipos considerados finos/m?dios. No caso do quartzo os litotipos grossos/porfir?ticos mostraram maior fator de correla??o, quando comparados com os finos/m?dios. Quanto aos feldspatos (K-feldspato e plagiocl?sio) houve novamente dispers?o. Para os m?ficos, tanto os tipos grossos/porfir?ticos quanto os finos/m?dios, mostraram correla??es negativas com fator de correla??o menor do que os obtidos em rela??o ao quartzo. Quanto aos litotipos, relacionados ao diagrama QAP de Streckeisen (1976), h? uma tend?ncia de queda no sentido dos alcali-feldspatos granitos para os tonalitos, e dos sienit?ides para os gabros, dioritos, etc. A correla??o dos dados de condutividade t?rmica com os de geoqu?mica confirmou em grande parte, os resultados de mineralogia. Observou-se que a correla??o, quando existe, ? linear. Este comportamento foi verificado principalmente com o SiO2. Neste caso nota-se uma correla??o similar a observada com o quartzo, ou seja, aumento da condutividade t?rmica com o incremento de SiO2. Um outro aspecto observado ? que rochas b?sicas a intermedi?rias apresentaram valores sempre inferiores a 2,5 W/mK, comportamento similar ao observado em rochas com quartzo <20%. J? as rochas ?cidas apresentaram valores acima de 2,5 W/mK, comportamento similar ao observado em rochas com quartzo >20% (gran?ticas). Nos demais casos os fatores de correla??o s?o sempre baixos apresentando comportamento inverso, sendo observado para Fe2O3, CaO, MgO, e TiO2. Quanto ao Al2O3, K2O e Na2O os resultados n?o s?o conclusivos havendo estatisticamente dispers?o. O conhecimento das propriedades t?rmicas em especial a condutividade t?rmica e sua aplica??o na constru??o civil mostrou-se bastante satisfat?ria, pois, envolve tanto aspectos tecnol?gicos quanto aspectos do conforto t?rmico favorecendo em todos os casos resultados r?pidos, baratos e precisos. A rela??o da condutividade t?rmica, com a dilata??o t?rmica linear tamb?m mostrou resultados satisfat?rios em especial quando fica demonstrado o papel do quartzo como fase comum e determinante entre as duas vari?veis. O estudo da condutividade t?rmica aliada a densidade dos materiais rochosos poder? servir como ferramenta adicional na escolha de materiais quando se levar em considera??o aspectos do c?lculo estrutural e do conforto t?rmico, pois no caso das rochas ornamentais h? uma pequena varia??o da densidade em detrimento da varia??o consider?vel da condutividade t?rmica
4

Prospec??o tecnol?gica para gera??o de energia e?lica

Falani, Samira Yusef Ara?jo de 24 October 2014 (has links)
Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2016-01-05T19:01:21Z No. of bitstreams: 1 SamiraYusefAraujoDeFalani_DISSERT.pdf: 2393333 bytes, checksum: 99da44b14830eda42de8cdd875057803 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2016-01-11T21:06:30Z (GMT) No. of bitstreams: 1 SamiraYusefAraujoDeFalani_DISSERT.pdf: 2393333 bytes, checksum: 99da44b14830eda42de8cdd875057803 (MD5) / Made available in DSpace on 2016-01-11T21:06:30Z (GMT). No. of bitstreams: 1 SamiraYusefAraujoDeFalani_DISSERT.pdf: 2393333 bytes, checksum: 99da44b14830eda42de8cdd875057803 (MD5) Previous issue date: 2014-10-24 / A acelera??o das mudan?as tecnol?gicas e o processo de globaliza??o t?m intensificado a competi??o e a necessidade de novos produtos (bens e servi?os), resultando na crescente preocupa??o das organiza??es no desenvolvimento de avan?os tecnol?gicos, econ?micos e sociais. O presente trabalho objetiva apresentar um panorama global do desenvolvimento das tecnologias relacionadas ? energia e?lica e projetar suas tend?ncias. Para conduzir esta pesquisa, faz-se (i) a revis?o bibliogr?fica sobre inova??o tecnol?gica, m?todos de prospec??o tecnol?gica e fundamentos da energia e?lica; (ii) a an?lise de patentes, apresentando o panorama atual da tecnologia estudada, por meio da busca de informa??es em bancos de patentes; e (iii) a elabora??o do mapa da evolu??o tecnol?gica dos aerogeradores e constru??o da tend?ncia futura a partir de informa??es da literatura e not?cias do setor estudado. A etapa (ii) permitiu o estudo de 25.644 patentes entre os anos 2003 a 2012, no qual os EUA e China lideram o ranking de depositantes e a empresa americana General Electric e a japonesa Mitsubishi apresentam-se como os maiores detentores da tecnologia e?lica. A etapa (iii) analisou e identificou que a maioria das inova??es apresentadas na evolu??o tecnol?gica da energia e?lica s?o inova??es incrementais de produto para o mercado. A proposta de tend?ncias futuras mostra que os aerogeradores do futuro tendem a ser de eixo horizontal, s?ncrono, com a nacele mais alta que 194m e de di?metro do rotor superior a 164m, possuindo gera??o superior a 7,5MW. Os materiais utilizados nas p?s ser?o novos materiais com caracter?sticas de baixa densidade e alta resist?ncia. As torres est?o com tend?ncia h?brida de materiais, aliando o a?o ao concreto. Essa disserta??o busca cobrir a lacuna existente na academia sobre a utiliza??o de t?cnicas de prospec??o tecnol?gica para o setor de energia e?lica, por meio do reconhecimento de que utilizar-se da an?lise de patentes, an?lise de artigos cient?ficos e not?cias da ?rea, proporcionam conhecimento sobre o setor e que influencia na qualidade das decis?es de investimento em P&D e, consequentemente, a melhora da efici?ncia e efic?cia da gera??o de energia e?lica / The acceleration of technological change and the process of globalization has intensified competition and the need for new products (goods and services), resulting in growing concern for organizations in the development of technological, economic and social advances. This work presents an overview of the development of wind energy-related technologies and design trends. To conduct this research, it is (i) a literature review on technological innovation, technological forecasting methods and fundamentals of wind power; (ii) the analysis of patents, with the current technology landscape studied by means of finding information in patent databases; and (iii) the preparation of the map of technological development and construction of wind turbines of the future trend information from the literature and news from the sector studied. Step (ii) allowed the study of 25 644 patents between the years 2003-2012, in which the US and China lead the ranking of depositors and the American company General Electric and the Japanese Mitsubishi stand as the largest holder of wind technology. Step (iii) analyzed and identified that most of the innovations presented in the technological evolution of wind power are incremental product innovations to market. The proposed future trends shows that the future wind turbines tend to have a horizontal synchronous shaft, which with the highest diameter of 194m and 164m rotor nacelle top, the top having 7,5MW generation. The materials used for the blades are new materials with characteristics of low density and high strength. The towers are trend with hybrid materials, uniting the steel to the concrete. This work tries to cover the existing gap in the gym on the use of technological forecasting techniques for the wind energy industry, through the recognition that utilize the patent analysis, analysis of scientific articles and stories of the area, provide knowledge about the industry and influencing the quality of investment decisions in R & D and hence improves the efficiency and effectiveness of wind power generation
5

Prospec??o tecnol?gica de c?lulas fotovoltaicas para energia solar

Sampaio, Priscila Gon?alves Vasconcelos 31 July 2015 (has links)
Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2016-04-25T21:18:31Z No. of bitstreams: 1 PriscilaGoncalvesVasconcelosSampaio_DISSERT.pdf: 3304012 bytes, checksum: 80d7aafefa3834916ac5c98b674556d8 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2016-04-27T20:10:10Z (GMT) No. of bitstreams: 1 PriscilaGoncalvesVasconcelosSampaio_DISSERT.pdf: 3304012 bytes, checksum: 80d7aafefa3834916ac5c98b674556d8 (MD5) / Made available in DSpace on 2016-04-27T20:10:10Z (GMT). No. of bitstreams: 1 PriscilaGoncalvesVasconcelosSampaio_DISSERT.pdf: 3304012 bytes, checksum: 80d7aafefa3834916ac5c98b674556d8 (MD5) Previous issue date: 2015-07-31 / A energia solar apresenta-se como uma excelente alternativa para a gera??o de energia limpa e renov?vel. Esta disserta??o tem como objetivo identificar as tend?ncias tecnol?gicas das c?lulas fotovoltaicas para energia solar. A pesquisa caracteriza-se, em rela??o ? natureza, como sendo aplicada; em rela??o ? abordagem, ? quali-quantitativa; no que tange aos objetivos, ? explorat?ria e descritiva; concernente ao procedimento metodol?gico ? considerada uma pesquisa bibliogr?fica com um estudo de caso caso no setor de energia solar fotovoltaica. O desenvolvimento desta pesquisa iniciou-se com uma revis?o bibliogr?fica sobre energia solar fotovoltaica e prospec??o tecnol?gica. Em seguida, conduziu-se o mapeamento tecnol?gico das c?lulas fotovoltaicas para energia solar por meio da an?lise de artigos e de patentes. Posteriormente foi realizada a prospec??o tecnol?gica das c?lulas fotovoltaicas para energia solar atrav?s do M?todo Delphi, bem como a constru??o do mapa atual e futuro das tecnologias das c?lulas fotovoltaicas, para os cen?rios atual, ano 2020 e ano 2025. Os resultados desta pesquisa apontam que as tecnologias consideradas maduras (sil?cio mono e multicristalino) continuar?o sendo vi?vel t?cnica-comercialmente dentro do per?odo prospectado (2020 - 2025). Outras tecnologias que atualmente s?o vi?veis (sil?cio amorfo, telureto de c?dmio e seleneto de cobre ?ndio/Cobre, ?ndio e g?lio-disseleneto), poder?o n?o apresentar esta mesma condi??o em 2025. J? as c?lulas de nanofios de sil?cio, sensibilizadas por corante e as baseadas em nanoestrutura de carbono, que nos dias atuais n?o s?o vi?vel t?cnica-comercialmente, poder?o fazer parte do mapa futuro das tecnologias fotovoltaicas para energia solar. / Solar energy presents itself as an excellent alternative for the generation of clean, renewable energy. This work aims to identify technological trends of photovoltaic cells for solar energy. The research is characterized, in relation to nature, to be applied; regarding the approach is qualitative and quantitative; with respect to the objectives, it is exploratory and descriptive; concerning the methodological procedure is considered a bibliographic research with a case study in the case of solar photovoltaic sector. The development of this research began with a literature review on photovoltaic solar energy and technology foresight. Then it led to the technology mapping of photovoltaic solar cells through the analysis of articles and patents. It was later performed the technological prospecting of photovoltaic cells for solar energy through the Delphi method, as well as the construction of the current plan and future technology of photovoltaic cells for the current scenario, 2020 and 2025. The results of this research show that the considered mature technologies (silicon mono and multicrystalline) will continue to be commercially viable within the prospected period (2020-2025). Other technologies that are currently viable (amorphous silicon, cadmium telluride and copper indium selenide / Copper indium gallium diselenide-), may not submit the same condition in 2025. Since the cells of silicon nanowires, dye-sensitized and based on carbon nanostructure, which nowadays are not commercially viable, may be part of the future map of photovoltaic technologies for solar energy.
6

Transhumanismo e suas oscila??es prometeico-f?usticas: tecnoapoteose na era da ci?ncia demi?rgica

Ant?nio, Keoma Ferreira 20 December 2017 (has links)
Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2018-03-12T17:41:59Z No. of bitstreams: 1 KeomaFerreiraAntonio_DISSERT.pdf: 2062529 bytes, checksum: e1ea8157d05f1e198fb187b1f3f1eb8e (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2018-03-15T16:06:41Z (GMT) No. of bitstreams: 1 KeomaFerreiraAntonio_DISSERT.pdf: 2062529 bytes, checksum: e1ea8157d05f1e198fb187b1f3f1eb8e (MD5) / Made available in DSpace on 2018-03-15T16:06:41Z (GMT). No. of bitstreams: 1 KeomaFerreiraAntonio_DISSERT.pdf: 2062529 bytes, checksum: e1ea8157d05f1e198fb187b1f3f1eb8e (MD5) Previous issue date: 2017-12-20 / Temos a pretens?o, com este trabalho, de perscrutar o Transhumanismo, movimento filos?fico e cultural que anseia a supera??o da condi??o org?nica humana em decorr?ncia do exponencial avan?o tecnocient?fico traduzido em um aprimoramento humano que compreende um amplo espectro da a??o humana. Para isso, vis-?-vis ? um resgate hist?rico de quais sejam suas ra?zes ou pontos arquimedianos, asseveramos que o movimento pode ser compreendido em conson?ncia ? duas tradi??es tecnocient?ficas, Prometeica e F?ustica, ambas constitu?das, ? luz da filosofia e sociologia de Herm?nio Martins, por tra?os peculiares. O Primeiro se configura em uma estrutura tecnocient?fica impelida pela ideia de que, por meio da raz?o, podemos modificar o mundo para algo melhor, metamorfose?-lo no af? da obten??o do bem humano, cujo ponto de culmin?ncia ? o Humanismo; o segundo exprime um car?ter desmesurado, descomedido, uma hybris que estabelece uma fissura no ideal Humanista. Sustentamos, ademais, sob o prisma de Herm?nio Martins e Victor Ferkiss, que o movimento ressoa uma esp?cie de ?neognosticismo? ou ?gnosticismo tecnol?gico?, raz?o pela qual, promove, em certa medida, um salvacionismo transcendente high-tech, em detrimento da pura organicidade que nos ? constituinte. Apetecemos tamb?m tornar evidente que o movimento Transhumanista n?o se esgota em termos monol?ticos, uma vez que sua configura??o toma forma em d?spares nuances do espectro pol?tico, se adequando, trazendo novos eixos de discuss?o e focos de an?lise e de proposi??o, inscritos em duas categorias: Transhumanismo Prometeico e Transhumanismo F?ustico. Por fim, ao elucidarmos o exponencial desenvolvimento das ci?ncias demi?rgicas, almejamos estabelecer caminhos para a compreens?o clara de que, n?o obstante o Transhumanismo seja permeado pelo risco de intensifica??o da injusti?a global, pela flexibiliza??o da constitui??o natural humana em favor de um humano abstrato e, portanto, potencialmente perigoso, o movimento pode ser concebido como uma via para a solu??o de in?meros problemas da esfera humana. E diante dos impactos oriundos do avan?o destas tecnologias, almejamos, por ?ltimo, evidenciar o qu?o colossal ? a relev?ncia dessa discuss?o no campo filos?fico e acad?mico. / We have the pretension, with this work, to examine Transhumanism, a philosophical and cultural movement that longs for the overcoming of the human organic condition as a result of the exponential techno-scientific advance, expressed into a human enhancement that comprises a broad spectrum of human action. For this, in view of a historical rescue of its archimedean points or roots, we assert that the movement can be understood in accordance with the two technoscientific traditions, Promethean and Faustic, both constituted in the light of Herm?nio Martin's philosophy and sociology, by peculiar traits. The first is in a technoscientific structure impelled by the idea that, through reason, we can modify the world for something better, to morph it in the desire to obtain the human good, whose point of culmination is Humanism; the second expresses an excessive, unbridled character, a hubris that establishes a fissure in the Humanist ideal. We hold, in addition, under the prism of Herm?nio Martins and Victor Ferkiss, that the movement resonates a kind of "neognosticism" or "technological gnosticism", since it promotes, to some extent, a transcendent high-tech salvationism, in detriment of pure organicity that we are constituent. We also want to make it evident that the Transhumanist movement does not exhaust itself in monolithic terms, given that it is expressed in disparate nuances of the political spectrum, adapting itself, bringing new lines of discussion and focuses of analysis and proposition, inscribed in two categories: Promethean Transhumanism and Faustic Transhumanism. Finally, in elucidating the exponential development of the demiurgic sciences, we aim to establish ways for a clear understanding that, notwithstanding the Transhumanism being permeated by the risk of intensifying the global injustice, by flexibilizing the natural human constitution in favor of an abstract human, therefore potentially dangerous, movement can be conceived as a way to solve countless problems of the human sphere. And in the face of the impacts from the advancement of these technologies, we aspire to, finally, highlight how colossal is the relevance of this discussion in the philosophic and academic field.
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Incuba????o de empresas de base tecnol??gica: proposta e aplica????o do ??ndice de dimensionamento do processo de incuba????o de empresas de base tecnol??gica

Souza, Maria Ramos de January 2008 (has links)
Submitted by Gustavo Gomes (gustavolascasas@gmail.com) on 2013-09-06T13:56:05Z No. of bitstreams: 2 Incuba????o de empresas de base tecnol??gica.pdf: 1177225 bytes, checksum: 039998b84d8cc15e0be04246d4ef0da5 (MD5) license_rdf: 23599 bytes, checksum: 9e2b7f6edbd693264102b96ece20428a (MD5) / Approved for entry into archive by Roger Guedes (roger.guedes@fjp.mg.gov.br) on 2013-09-06T16:31:53Z (GMT) No. of bitstreams: 2 Incuba????o de empresas de base tecnol??gica.pdf: 1177225 bytes, checksum: 039998b84d8cc15e0be04246d4ef0da5 (MD5) license_rdf: 23599 bytes, checksum: 9e2b7f6edbd693264102b96ece20428a (MD5) / Made available in DSpace on 2013-09-06T16:31:53Z (GMT). No. of bitstreams: 2 Incuba????o de empresas de base tecnol??gica.pdf: 1177225 bytes, checksum: 039998b84d8cc15e0be04246d4ef0da5 (MD5) license_rdf: 23599 bytes, checksum: 9e2b7f6edbd693264102b96ece20428a (MD5) Previous issue date: 2008 / Funda????o Jo??o Pinheiro / Este estudo trata de um aspecto relevante do desenvolvimento cient??fico e tecnol??gico: o processo de incuba????o de empresas de base tecnol??gica no Brasil. Ele prop??e e aplica um ??ndice sint??tico que procura retratar dimens??es importantes do processo de incuba????o de empresas de base tecnol??gica. O trabalho, de natureza explorat??ria e descritiva, utiliza como instrumentos de pesquisa, o levantamento bibliogr??fico e documental, a explora????o de dados e informa????es estat??sticas, e a aplica????o do m??todo distancial para padroniza????o de vari??veis. O ??ndice proposto, ??ndice de dimensionamento do processo de incuba????o de empresas de base tecnol??gica ??? IEBT ?? composto por quatro dimens??es: Prioridade governamental ?? pol??tica p??blica de C,T&I, Amplitude e difus??o do processo de incuba????o, N??vel de inova????o tecnol??gica nas empresas, e N??vel de educa????o formal da popula????o, e a cada dimens??o corresponde um conjunto de indicadores. O IEBT possibilita ordenar a posi????o relativa dos estados quanto ao est??gio de desenvolvimento do processo de incuba????o de empresas de base tecnol??gica, sob as dimens??es que o comp??em. Os resultados do IEBT para os estados das regi??es sudeste e sul do pa??s, sugerem que o est??gio de desenvolvimento do processo de incuba????o de empresas de base tecnol??gica apresenta-se avan??ado nos estados de S??o Paulo e Rio Grande do Sul, enquanto o Rio de Janeiro, Paran?? e Santa Catarina corresponderiam a um est??gio intermedi??rio. Minas Gerais corresponderia a um est??gio pouco avan??ado, superando apenas o Esp??rito Santo (que apresentou o mais baixo IEBT dentre os estados das regi??es sudeste e sul do Brasil). No que diz respeito especificamente a Minas Gerais, os resultados sugerem que as principais fragilidades do processo de incuba????o de empresas de base tecnol??gica est??o associadas ??s dimens??es N??vel de educa????o formal da popula????o e ?? Prioridade governamental ?? pol??tica p??blica de C,T&I. J?? a dimens??o Amplitude e difus??o do processo de incuba????o e a dimens??o N??vel de inova????o tecnol??gica nas empresas apresentaram potencialidades para o desenvolvimento e consolida????o do processo de incuba????o de empresas de base tecnol??gica no estado. / This study treats of a relevant aspect of the scientific and technological development: the process of incubation of companies of technological base in Brazil. He proposes and it applies a synthetic index that it tries to portray important dimensions of the process of incubation of companies of technological base. The work, of exploratory and descriptive nature, uses as research instruments, the bibliographical and documental rising, the exploration of data and statistical information, and the application of the method distancial for standardization of variables. The proposed index, Index of measurement of the process of incubation of companies of technological base - IEBT is composed by four dimensions: Government priority to the public politics of C,T&I, Width and diffusion of the incubation process, Level of technological innovation in the companies, and Level of formal education of the population, and to each dimension it corresponds a group of indicators. IEBT makes possible to order the relative position of the states as for the apprenticeship of development of the process of incubation of companies of technological base, under the dimensions that compose it. The results of IEBT for the states of the areas southeast and south of the country, they suggest that the apprenticeship of development of the process of incubation of companies of technological base comes advanced in the states of S??o Paulo and Rio Grande do Sul, while Rio de Janeiro, Paran?? and Santa Catarina would correspond to an intermediate apprenticeship. Minas Gerais would correspond to a little advanced apprenticeship, just overcoming the Esp??rito Santo (that presented lowest IEBT among the states of the areas southeast and south of Brazil). In what it says respect specifically to Minas Gerais, the results suggest that the main fragilities of the process of incubation of companies of technological base are associated at the dimensions Level of formal education of the population and the Government priority to the public politics of C,T&I. Already the dimension Width and diffusion of the incubation process and the dimension Level of technological innovation in the companies presented potentialities for the development and consolidation of the process of incubation of companies of technological base in the state. / Ci??ncia, Informa????o e Comunica????o
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Tecnologia da Informa??o e Comunica??o: a pr?tica pedag?gica do IFNMG/Campus Montes Claros

Pimenta, Mara Christiani 20 October 2016 (has links)
?rea de concentra??o: Educa??o e gest?o de institui??es educacionais. / Submitted by Jos? Henrique Henrique (jose.neves@ufvjm.edu.br) on 2017-02-13T16:49:10Z No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) mara_christiani_pimenta.pdf: 1791452 bytes, checksum: 6ee881a5e98b27a0c694bf6c56c8d152 (MD5) / Approved for entry into archive by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2017-02-23T12:36:10Z (GMT) No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) mara_christiani_pimenta.pdf: 1791452 bytes, checksum: 6ee881a5e98b27a0c694bf6c56c8d152 (MD5) / Made available in DSpace on 2017-02-23T12:36:10Z (GMT). No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) mara_christiani_pimenta.pdf: 1791452 bytes, checksum: 6ee881a5e98b27a0c694bf6c56c8d152 (MD5) Previous issue date: 2016 / A sociedade contempor?nea, midiatizada pelas tecnologias da informa??o e comunica??o, exige escolas que repensem suas proposi??es metodol?gicas no uso das TIC's no processo de ensino-aprendizagem, de forma que essas possam promover novos contextos de aprendizagem. As tecnologias da informa??o e comunica??o proporcionam oportunidades para desenvolver novas maneiras de intera??o, de ensinar e de aprender, exigindo uma maior inser??o dos recursos tecnol?gicos instrucionais na pr?tica pedag?gica das institui??es escolares. A pesquisa teve como objetivo analisar a utiliza??o de tecnologias da informa??o e comunica??o no desenvolvimento das pr?ticas pedag?gicas do IFNMG- Campus Montes Claros. Do ponto de vista metodol?gico optou-se pela realiza??o de uma pesquisa de car?ter qualitativo e se assemelha a um estudo de caso. As t?cnicas de investiga??o incluem: entrevista, question?rio e an?lise de documentos orientados por quatro indicadores: Disponibilidade de TIC?s; Organiza??o da escola para uso das TIC?s; Forma??o dos educadores para uso das TIC?s e Presen?a das TIC?s na pr?tica pedag?gica. O resultado evidencia que o IFNMG/Campus Montes Claros encontra-se em um ?entrelugar?, isto ?, mostra-se como uma institui??o de ensino ocupante de um ?entre? a contemporaneidade e a solidez da tradi??o, ou seja, em um est?gio de transi??o, em que se busca o novo, mas ainda se identifica a coexist?ncia do tradicional. / Disserta??o (Mestrado Profissional) ? Programa de P?s-Gradua??o em Educa??o, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2016. / The contemporary society, mediated by the information and communication technologies, requires schools to rethink their methodological proposals in the use of ICT in the teaching- learning process, so that these can promote new learning contexts. Information and communication technologies provide opportunities to develop new ways of interaction, teaching and learning, requiring a greater integration of instructional technological resources in educational practice of schools. This dissertation analyzes the reality of the Federal Institute of the North of Minas Gerais - Campus Montes Claros, in relation to the use of information and communication technologies in its teaching practice. The research was not the sole purpose of analyzing the use of ICTs in that Campus, but also provide reflections for future actions of its faculty, regarding the use of these technologies in teaching practice, as these technologies can promote the institutionalization an education that prepares students for the demands of the contemporary society. The methodology includes interviews, questionnaires and document analysis guided by four indicators: availability of ICT; school organization for the use of ICT; Training of teachers to use ICT and presence of ICT in teaching practice. The result shows that the IFNMG / Campus Montes Claros is located in a "between place", that is , it shows how an educational institution occupant of a 'between' the contemporary and the strength of tradition, that is, at a stage transition, which seeks the new, but still identifies the coexistence of traditional.
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Integra??o ensino e pesquisa no processo de aprendizagem: produ??o de frangos de corte / Interative teaching and research in learning process: production of broilers

Arruda, Adalberto de Souza 21 August 2010 (has links)
Submitted by Sandra Pereira (srpereira@ufrrj.br) on 2016-10-07T13:32:58Z No. of bitstreams: 1 2010 - Adalberto de Souza Arruda.pdf: 3235797 bytes, checksum: 3bd92899ca41e6d6e9a9babbea96cd29 (MD5) / Made available in DSpace on 2016-10-07T13:32:58Z (GMT). No. of bitstreams: 1 2010 - Adalberto de Souza Arruda.pdf: 3235797 bytes, checksum: 3bd92899ca41e6d6e9a9babbea96cd29 (MD5) Previous issue date: 2010-08-21 / This paper is the result of research accomplished with students of poultry cut, aimed to analyze the process of teaching/learning permeated by searching through practical experiments developed in laboratory of small animals of the Federal Institute of Education, Science and Technology ? Campus Barreiros. To guide the development work, we used the qualitative and quantitative approaches, the qualitative was important in times of discussions, seminars and bibliographic surveys, but also provided a flexible relationship between teacher and student, while the quantitative was used in the preparation spreadsheets, charts, tables and systematization of data feed intake, feed conversion and weight gain. The research was carried out during the class period of the group of husbandry 1 in agricultural technical course in the discipline poultry cut and the practice experiment was accomplished in a period of 42 (forty two) days. We adopted an interactive approach in order to develop in students an awareness of innovative and make them able to use the science produced within the production process and the parameters of competitiveness. At the beginning of the study, was applied the initial questionnaire to diagnose the knowledge about the subject, the project proceeded with discussion and demonstration of the importance of different types of food that are part of the diets and the development of the broiler. In the second moment, was a questionnaire of final diagnosis to verify the construction of knowledge through the proposed methodology, where realized that research was instrumental in developing cognitive. This paper based on the research as a method of teaching aroused the curiosity of the student in the teaching /learning through practices carried out as a choice of local area boundaries, distribution of chicks. In addition to the questionnaires, we used the following elements: seminars, lectures and practices, technical visits, videos, library, internet and laboratories, which contributed to the formation of knowledge learned. In general, this research aimed to improve the quality of our students of professional Education Agricultural they contribute a large part in the development of family farming in our country, our state and region. This integration of teaching and research contributed to the teaching/learning process through the operationalization of curriculum connect in an integrated way, providing opportunities for students to practice the acquired knowledge to find a better opportunity to work and develop entrepreneurial activities. / Este trabalho ? resultado de uma pesquisa realizada com alunos da disciplina de Avicultura Corte, teve como objetivo analisar o processo de ensino/aprendizagem, permeado pela pesquisa atrav?s de experimentos pr?ticos desenvolvidos no laborat?rio de pequenos animais do Instituto Federal de Educa??o, Ci?ncia e Tecnologia - Campus Barreiros ? PE. Para orientar o desenvolvimento do trabalho utilizou-se as abordagens qualitativa e quantitativa, a qualitativa foi importante nos momentos de discuss?es, de levantamentos bibliogr?ficos e semin?rios, como tamb?m proporcionou um relacionamento flex?vel entre o professor pesquisador e alunos, enquanto que a quantitativa foi utilizada na elabora??o de planilhas, gr?ficos, tabelas e sistematiza??o de dados do consumo de ra??o, convers?o alimentar e ganho de peso. A pesquisa foi aplicada durante o per?odo de aulas da turma de zootecnia I do curso t?cnico em agropecu?ria na disciplina de Avicultura Corte e o experimento pr?tico realizado em um per?odo de 42 (quarenta e dois) dias. Adotou-se uma postura interativa com a finalidade de desenvolver nos alunos uma consci?ncia inovadora e torn?-los capazes de utilizar as ci?ncias produzidas dentro do processo produtivo e dos par?metros de competitividade. No in?cio da pesquisa, aplicou-se question?rio inicial para diagnosticar o conhecimento acerca do assunto, o projeto procedeu com a discuss?o e demonstra??o da import?ncia dos diferentes tipos de ra??o que fazem parte das dietas e no desenvolvimento do frango de corte. No segundo momento, foi aplicado um question?rio de diagn?stico final para verifica??o da constru??o do conhecimento atrav?s da proposta metodol?gica, onde se percebeu que a pesquisa serviu de instrumento para o desenvolvimento cognitivo. Este trabalho baseado na pesquisa como m?todo de ensino despertou a curiosidade do aluno no processo ensino/aprendizagem atrav?s das pr?ticas realizadas como: escolha de um local, delimita??o de ?rea, distribui??o de pintos. Al?m dos question?rios, utilizou-se os seguintes elementos, semin?rios, aulas te?ricas e pr?ticas, visitas t?cnicas, v?deos, biblioteca, internet e laborat?rios, os quais contribu?ram com a forma??o dos saberes aprendidos. Em geral, esta pesquisa teve o prop?sito de melhorar a qualidade dos nossos discentes da Educa??o Profissional Agr?cola, estes que contribuem com uma grande parcela no desenvolvimento da agricultura familiar do nosso pa?s, estado e nossa regi?o. Esta integra??o ensino e pesquisa contribuiu no processo ensino/aprendizagem por meio da operacionaliza??o dos conte?dos curriculares de maneira integrada, oportunizando os alunos a p?r em pr?tica os conhecimentos adquiridos, encontrar uma melhor oportunidade de trabalho e desenvolver atividades empreendedoras
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O princ?pio da efici?ncia administrativa na regula??o da presta??o do servi?o de voz sobre internet - VoIP

Souto, Ana Fl?via Lins 10 November 2014 (has links)
Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2015-12-03T23:16:48Z No. of bitstreams: 1 AnaFlaviaLinsSouto_DISSERT.pdf: 1191835 bytes, checksum: f7fea5d276f29ff8f41cd847fd02f335 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2015-12-09T22:31:31Z (GMT) No. of bitstreams: 1 AnaFlaviaLinsSouto_DISSERT.pdf: 1191835 bytes, checksum: f7fea5d276f29ff8f41cd847fd02f335 (MD5) / Made available in DSpace on 2015-12-09T22:31:31Z (GMT). No. of bitstreams: 1 AnaFlaviaLinsSouto_DISSERT.pdf: 1191835 bytes, checksum: f7fea5d276f29ff8f41cd847fd02f335 (MD5) Previous issue date: 2014-11-10 / O presente trabalho tem como objetivo demonstrar a rela??o do princ?pio da efici?ncia -como expresso na Constitui??o Federal de 1988, atrav?s da Emenda Constitucional n? 19 - com as ag?ncias reguladoras, mais precisamente a ANATEL (Ag?ncia Nacional de Telecomunica??es). Abrange tamb?m a import?ncia que esse princ?pio possui sobre a regula??o - fiscalizar e gerenciar os servi?os p?blicos - e quando uma atividade ser? considerada eficiente, tendo em mente que as ag?ncias sujeitam-se aos demais princ?pios da Administra??o P?blica. O crescente uso da telefonia vem possibilitando um maior desenvolvimento de tecnologias que proporcionam melhorias na presta??o desse servi?o. O VoIP (Voice over IP), nada mais ? que um avan?o tecnol?gico que atinge diretamente as prestadoras do servi?o de telefonia convencional, tanto pela modifica??o dos neg?cios que trabalhavam por um longo per?odo com a mesma tecnologia, quanto pela quantidade de novos concorrentes que entram no mercado. Como ag?ncia reguladora do servi?o de telecomunica??es, a ANATEL, ainda n?o regulamentou o servi?o de telefonia de voz utilizando o protocolo IP. O que se aguarda com o passar dos anos ? que a ANATEL exer?a a sua fun??o regulat?ria para proporcionar melhores condi??es de competi??o entre as empresas prestadoras do VoIP e da telefonia convencional, obviamente que algumas dificuldades s?o esperadas, haja vista, que o VoIP ? uma tecnologia que abrange dois servi?os, tanto a telefonia convencional quanto a utiliza??o da internet / The present work aims to demonstrate the link of the principle of efficiency - as expressed in the Constitution of 1988, by Constitutional Amendment No. 19 - with regulatory agencies, more specifically the ANATEL (National Telecommunications Agency). It also includes this principle?s importance to regulation - to monitor and manage public services - as well as when an activity will be considered efficient, keeping in mind that agencies are subjected to other principles of public administration. The increasing use of telephony has enabled further development of technologies that provide improvements in the provision of this service. The VoIP (Voice over IP), is nothing more than a technological breakthrough that directly targets the providers of conventional telephone service, both by modifying the business working for a long time with the same technology as the amount of new competitors? dispute on market share. It also analyses the difficulty of understanding and definition of what is VoIP telephony, its growth and the threats that the traditional and mostly which is ANATEL?s role concerning this telephony technology. As regulator of the telecommunications service, ANATEL not yet regulated the voice telephony service using the IP protocol. What looks over the years is that ANATEL exercise its regulatory function to provide better conditions for competition among providers of VoIP and traditional telephone companies, obviously some difficulties are expected, given that VoIP is a technology that provides two services, through conventional telephony and using the internet.

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