VANTI, Nadia. Links hipertextuais na comunica??o cient?fica: an?lise webom?trica dos s?tios acad?micos latino-americanos em Ci?ncias Sociais. Porto Alegre, 2007. 292 f. Tese (Doutorado em Comunica??o e Informa??o) ? Universidade Federal do Rio Grande do Sul. Porto Alegre, 2007. / Submitted by Francisco de Assis Ara?jo (franciscodebibufrn@gmail.com) on 2010-09-27T14:38:01Z No. of bitstreams: 1 2007Tese_NadiaAV.pdf: 1163860 bytes, checksum: 8ab926cb12983c17f9d167c6ee6b509c (MD5) / Approved for entry into archive by clediane guedes(clediane@bczm.ufrn.br) on 2010-09-29T18:20:01Z (GMT) No. of bitstreams: 1 2007Tese_NadiaAV.pdf: 1163860 bytes, checksum: 8ab926cb12983c17f9d167c6ee6b509c (MD5) / Made available in DSpace on 2010-09-29T18:20:01Z (GMT). No. of bitstreams: 1 2007Tese_NadiaAV.pdf: 1163860 bytes, checksum: 8ab926cb12983c17f9d167c6ee6b509c (MD5) / RESUMO Os principais objetivos deste estudo s?o a investiga??o do campo da webometria, definindo o lugar que esta ocupa dentro da Ci?ncia da Informa??o e o seu inter-relacionamento com os tradicionais campos das m?tricas (bibliometria, cientometria e informetria), assim como a an?lise dos fluxos da informa??o na Web, mediante a aplica??o de diferentes indicadores webom?tricos aos s?tios dos centros filiados ao Conselho Latino-Americano de Ci?ncias Sociais (CLACSO). Os indicadores webom?tricos utilizados s?o: Tamanho do S?tio, Visibilidade, Luminosidade, Fator de Impacto Web, Densidade por Link e Densidade da Rede. O foco de an?lise ? o estudo dos links enquanto fontes de informa??o e como instrumentos de conex?o que influenciam e s?o influenciados pelos v?nculos acad?micos neste ambiente. Para a extra??o, quantifica??o e representa??o gr?fica dos dados s?o utilizados motores de busca (Google, Yahoo e Alta Vista), programas mapeadores (Xenu Link Steuth) e programas de an?lise e visualiza??o de redes (Ucinet 5 e Netdraw). Os resultados obtidos indicam que a informetria deve ser entendida como o campo maior que compreende n?o s? a bibliometria e a cientometria, mas tamb?m campos emergentes como a cibermetria e a webometria. Apresenta-se a posi??o de que a webometria n?o est? totalmente absorvida pela bibliometria, j? que a informa??o no meio digital n?o pode ser considerada como informa??o ?registrada? e sim como ?dispon?vel? em meio eletr?nico, havendo a necessidade de uma maior reflex?o te?rica para abrigar novos conceitos que surgem com a influ?ncia das inova??es tecnol?gicas no pensar e no fazer da Ci?ncia da Informa??o. A aplica??o dos indicadores webom?tricos demonstra que o Fator de Impacto da Web e Densidade por Link n?o oferecem resultados satisfat?rios. J? os demais indicadores demonstram sua utilidade e relev?ncia na mensura??o dos dados coletados na Web e nos processos de identifica??o e an?lise dos padr?es do fluxo da informa??o e inter- relacionamento entre institui??es acad?micas dentro do mundo virtual. O estudo demonstra tamb?m que a maioria dos s?tios latino-americanos de ci?ncias sociais estabelece poucas rela??es com outros centros do mesmo pa?s e de outros paises da regi?o na Web, o que se traduz em uma densidade de rede em geral bastante baixa e deixa em evid?ncia o importante potencial de conectividade a ser explorado no futuro pelo CLACSO e pelos seus centros membros. ABSTRACT: The main propose of this study is to research the field of webometrics, and define its role within Information Science and its relation with traditional metric fields (bibliometrics, scientometrics and informetrics). Also, by applying different webometric indicators to the sites of centers affiliated to the Latin American Council of Social Sciences (CLACSO), this study analyzes the information flows that occur inside the Web. The webometric indicators utilized are: Site Size, Visibility, Luminosity, Web Impact Factor, Link Density and Network Density. The analysis focuses mainly on an examination of links. These are regarded as sources of information and as instruments of connection that influence scholarly relationships within this virtual environment, at the same time being influenced by those relationships. Search engines such as Google, Yahoo and Alta Vista, link checking software such as Xenu Link Steuth, and programs for analysis and visualization of large networks such as Ucinet 5 and Netdraw are utilized for data collection, quantification and graphic representation of data. The results obtained indicate that infometrics has to be understood as a large field to include not only bibliometrics and scientometrics, but also emergent fields such as cybermetrics and webometrics. According to this research, webometrics should not be completely absorbed by bibliometrics, because the information in this digital environment cannot be considered as ?recorded.? Instead, this information should be seen as ?available? in electronic support. Therefore, it is necessary to think about a broader theoretical framework that allows us to include the new concepts that come out with the influence of technological innovations on the thinking and the makings of Information Science. The application of webometric indicators demonstrates that Link Density and the Web Impact Factor are insufficient. On the other hand, the other indicators stand out as useful, and are relevant tools to the measurement of data collected in the Web, as well as to the processes of information flows and to the interrelation among scholarly institutions inside the virtual world. This study also demonstrates that most of Latin American social sciences websites establish very few connections with the websites of other centers of the same country or region, which is reflected on a relatively low Network Density and emphasizes the enormous potential of connectivity as an area to be developed in the future by CLACSO and its member centers

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2016-07-25T19:35:27Z No. of bitstreams: 1 ThuanyPatriciaCostaDeLima_DISSERT.pdf: 12184992 bytes, checksum: 65b052eef0c8113f7e14df3c3a40604b (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2016-08-01T20:48:43Z (GMT) No. of bitstreams: 1 ThuanyPatriciaCostaDeLima_DISSERT.pdf: 12184992 bytes, checksum: 65b052eef0c8113f7e14df3c3a40604b (MD5) / Made available in DSpace on 2016-08-01T20:48:43Z (GMT). No. of bitstreams: 1 ThuanyPatriciaCostaDeLima_DISSERT.pdf: 12184992 bytes, checksum: 65b052eef0c8113f7e14df3c3a40604b (MD5) Previous issue date: 2015-09-25 / Ag?ncia Nacional do Petr?leo - ANP / O objetivo deste estudo foi caracterizar a express?o estrutural-geof?sica do Lineamento Transbrasiliano na por??o centro-leste da Bacia do Parna?ba. O Lineamento Transbrasiliano (LTB) corresponde a uma megazona de cisalhamento de idade neoproterozoica (Ciclo Brasiliano), com dire??o NE-SW e cinem?tica transcorrente dextral, ocorrendo subjacente (e exposta lateralmente nas bordas NE e SW) ? se??o sedimentar da Bacia do Parna?ba. No presente trabalho, a interpreta??o dos mapas de anomalias gravim?trica e magn?tica ? analisada face a essa cinem?tica do LTB, sendo que a assinatura das anomalias geof?sicas corresponde ?s etapas de evolu??o brasiliana a tardi-brasiliana, de temperatura alta e declinante. Verifica-se que o padr?o das anomalias gravim?tricas residuais ? compat?vel com um par S-C dextral, moldando os corpos geol?gicos do embasamento heterog?neo. As bandas C, com dire??o NE, devem ser constitu?das por fatias de gnaisses e granulitos (anomalias positivas), rochas gran?ticas ou metassedimentares de baixo grau e grabens pr?-silurianos em estilo pull-apart (anomalias negativas). J? as anomalias de tra?os curvil?neos no mapa gravim?trico identificam trends contracionais (de superf?cies S), incompat?veis com a sua interpreta??o como um graben pr?-siluriano, restando as demais alternativas citadas. No tocante ? interpreta??o dos trends no mapa de anomalias magn?ticas (reduzidas ao polo), a maior parte destes ? tentativamente associada a falhas ou zonas de cisalhamento de baixa temperatura (planos C), delimitando blocos distintos em termos de propriedades magn?ticas, e/ou preenchidas por corpos b?sicos. ? tamb?m poss?vel que algumas anomalias magn?ticas isoladas/pontuais correspondam a corpos ?gneos de idade tardi-brasiliana ou mesozoicos. A configura??o desses lineamentos no embasamento pode ser interpretada em analogia ao modelo de fraturas de Riedel, assumindo planos de mergulho acentuado e com se??o de movimento sub-horizontal. Nesta disserta??o, s?o tamb?m exploradas interpreta??es relativas a modelagens gravim?tricas 2D combinadas com a interpreta??o de uma linha s?smica dip ao Lineamento Transbrasiliano. A se??o de rochas equivalente ao Grupo Jaibaras mostrou anomalias gravim?tricas discretas da bacia, conferindo assim uma maior influ?ncia ?s estruturas do embasamento nas respostas gravim?tricas. A delimita??o dos grabens sotopostos ? se??o paleozoica da bacia sofre restri??es causadas pelas heterogeneidades e anisotropia do embasamento. / The objective of this study was to characterize the structural-geophysical expression of the Transbrasiliano Lineament (TBL) in the east-central portion of the Parna?ba Basin. The TBL corresponds to a major Neoproterozoic NE-trending shear zone related to the Brasiliano orogenic cycle, with dextral strike-slip kinematics, underlying (but also laterally exposed in the NE and SW basin edges) the sedimentary section of the Parna?ba Basin. In this study, the interpretation of gravity and magnetic anomaly maps is consistent with the TBL kinematics, the signature of the geophysical anomalies corresponding to the high (plastic behaviour) and subsequent declining temperature (ductile to brittle behaviour) stages during Brasiliano and late Brasiliano times. The pattern of residual gravity anomalies is compatible with an S-C dextral pair shaping the geological bodies of an heterogeneous basement, such as slices of gneisses and granulites (positive anomalies), granitic and low-medium grade metasedimentary rocks (negative anomalies). Such anomalies curvilinear trends, ranging from NNE (interpreted as S surfaces) to NE (C surfaces), correspond to flattening surfaces (S), while the NE rectilinear trend must represent a C band. The narrower magnetic anomalies also display NNE to NE (S surfaces) trends and should correspond to similar (although narrower and more discontinuous) sources in the equivalent anomaly patterns. Pre-Silurian pull-apart style grabens may contribute to the NE negative gravimetric anomalies, although this interpretation demands control by seismic data analysis. On the other hand, the curvilinear anomalies associated to contractional trends are incompatible with their interpretation as pre-Silurian graben, in both maps. In the (reduced to the pole) magnetic anomalies map, most of these are again associated to low-temperature shear zones (C planes) and faults, juxtaposing distinct blocks in terms of magnetic properties, or eventually filled with basic bodies. It is also possible that some isolated magnetic anomalies correspond to igneous bodies of late-Brasiliano or Mesozoic age. The basement late discontinuities pattern can be interpreted in analogy to the Riedel fractures model, with steep dipping surfaces and a sub-horizontal movement section. This study also explored 2D gravity modeling controlled by the interpretation of a dip seismic line as regards to the Transbrasiliano Lineament. The rock section equivalent to the Jaibaras Group occupying a graben structure (as identified in the seismic line) corresponds to a discrete negative anomaly superimposed to a gravimetric high, once again indicating a stronger influence of older crystalline basement rocks as gravimetric sources, mainly reflecting the heterogeneities and anisotropies generated at high temperature conditions and their subsequent cooling along the TBL, during the Brasiliano cycle.

Made available in DSpace on 2014-12-17T14:53:18Z (GMT). No. of bitstreams: 1 PauloRCB.pdf: 649782 bytes, checksum: 7b869bb155abf3578ea09e633db4f807 (MD5) Previous issue date: 2006-05-19 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior / This work presents a study in quality of health care, with focus on consulting appointment. The main purpose is to define a statistical model and propose a quality grade of the consulting appointment time. The time considered is that from the day the patient get the appointment done to the day the consulting is realized. It is used reliability techniques and functions that has as main characteristic the analysis of data regarding the time of occurrence certain event. It is gathered a random sample of 1743 patients in the appointment system of a University Hospital - the Hospital Universit?rio Onofre Lopes - of the Federal University of Rio Grande do Norte, Brazil. The sample is randomly stratified in terms on clinical specialty. The data were analyzed against the parametric methods of the reliability statistics and the adjustment of the regression model resulted in the Weibull distribution being best fit to data. The quality grade proposed is based in the PAHO criteria for a consulting appointment and result that no clinic got the PAHO quality grade. The quality grade proposed could be used to define priority for improvement and as criteria to quality control / Este trabalho apresenta um estudo sobre qualidade em servi?os de sa?de, com enfoque para o atendimento ambulatorial. Determinar o melhor modelo estat?stico e a proposi??o de um padr?o de qualidade para o tempo agendado para consulta ambulatorial, ? o objetivo do presente estudo. Para isso, foram utilizadas as t?cnicas de confiabilidade que tem como principal caracter?stica a an?lise de dados referente ao tempo de ocorr?ncia de determinado evento. Observou-se dados de 1.743 pacientes que agendaram consulta no Hospital Universit?rio Onofre Lopes - Natal/RN, onde coletou-se informa??es referentes ao tipo de tratamento, especialidade, tipo de marca??o e o tempo at? o atendimento ambulatoria1. Os dados foram analisados segundo os m?todos n?o param?tricos da estat?stica de confiabilidade e atrav?s do ajuste do modelo de regress?o. Concluiu-se que as covari?veis que influenciam o tempo at? o atendimento ambulatorial ? o tipo de marca??o e a especialidade, o modelo que melhor se adequa aos dados ? o Weibull e 20,83% das especialidades enquadram-se no padr?o B de qualidade, sendo este o melhor padr?o obtido

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2017-02-02T12:43:27Z No. of bitstreams: 1 JerbesonDeMeloSantana_DISSERT.pdf: 783968 bytes, checksum: 867f9ad936c5adb69bb954b107ba3e2d (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2017-02-07T19:13:20Z (GMT) No. of bitstreams: 1 JerbesonDeMeloSantana_DISSERT.pdf: 783968 bytes, checksum: 867f9ad936c5adb69bb954b107ba3e2d (MD5) / Made available in DSpace on 2017-02-07T19:13:20Z (GMT). No. of bitstreams: 1 JerbesonDeMeloSantana_DISSERT.pdf: 783968 bytes, checksum: 867f9ad936c5adb69bb954b107ba3e2d (MD5) Previous issue date: 2015-04-16 / ? apresentado um novo m?todo para o mapeamento aproximado da resistividade em subsuperf?cie usando uma abordagem geoestat?stica. S?o utilizados os pontos caracter?sticos (PCs) de uma sondagem de resistividade, que s?o os seus pontos de inflex?o e de extremos (m?ximos e m?nimos). O m?todo consiste basicamente de quatro etapas: i) suavizar ou interpolar as sondagens el?tricas, ii) obter os PCs usando as vers?es suavizadas das sondagens el?tricas, bem como obter as estimativas pontuais para a resistividade em subsuperf?cie usando rela??es emp?ricas entre os espa?amento de eletrodo e profundidade, iii) calcular os semivariogramas associados ?s estimativas pontuais de resistividade, e ajustar os mesmos a um modelo de semivariograma te?rico, e, finalmente, iv) estimar a distribui??o da resistividade em subsuperf?cie por krigagem utilizando as estimativas pontuais. N?o ? feita nenhuma hip?tese sobre a resistividade verdadeira e, como resultado, o m?todo ? robusto ? dimens?o do modelo e pode ser implementado para qualquer dimens?o. Computacionalmente, o m?todo ? muito r?pido porque nenhuma modelagem (direta ou inversa) ? realizada e o custo computacional ? apenas o da krigagem. Dada a sua robustez a erros de medi??o e ? dimens?o do modelo, o m?todo pode ser implementado como uma t?cnica r?pida e autom?tica de interpreta??o. A distribui??o de resistividade estimada tem valor tanto como um objeto de interpreta??o quanto como um modelo inicial de melhor qualidade para inicializar os algoritmos de invers?o. Neste ?ltimo uso, cerca de 30% a 40% das itera??es podem ser poupadas em compara??o com a inicializa??o com o semiespaco homog?neo, para o caso dos algoritmos de invers?o 2D que incorporam a restri??o de suavidade. O desempenho do m?todo ? demonstrado com aplica??es com dados 2D sint?ticos e reais no arranjo Schlumberger. A abordagem proposta pode ser generalizada para outras m?todos de resistividade DC e m?todos eletromagn?ticos que se baseiam em sondagens de resistividade. / It is presented a new method for the approximate mapping of the subsurface resistivity based on a geostatistical approach. It are used the characteristic points (CPs) of a resistivity sounding, which are their inflection and extreme (maximum and minimum) points. The methodology consists basically of four stages: i) smoothing the geoelectric soundings to assure robusteness to measurement errors, ii) determining the CPs from the smoothed versions of the geoelectric soundings, and obtaining from the CPs point estimates for the subsurface resistivity using empirical relations between electrode spacing and depth, iii) calculating semivariograms associated to the point estimates, and fitting them to a semivariogram model, and finally iv) estimating the subsurface resistivity distribution by kriging interpolation of the point estimates. No assumptions are made about the true subsurface resistivity and, as result, the method is robust to the model dimension and can be implemented for any dimension. Computationally, the method is very fast because no modeling (either direct or inverse) is demanded and the most intensive computer operation is just a kriging interpolation. Given its robustness to measurement errors and model dimension, it can be implemented as a fast automatic method of interpretation. The estimated resistivity distribution has value both as an object to interpret and as a better initial model for inversion algorithms. In the latter use, about 30%-40% of the iterations can be saved when compared with initializations with the homogeneous semispace, for 2D algorithms incorporating the classic smoothness constraint, for example. The method?s performance is demonstrated with applications with 2D Schlumberger array data both for synthetic and real cases. The proposed method might be generalized for other DC-resistivity arrays and electromagnetic techniques based on apparent resistivity soundings.

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2017-02-13T20:18:37Z No. of bitstreams: 1 JosimaraTatianeDaSilva_DISSERT.pdf: 1557682 bytes, checksum: fac59260c784cbb83579953ae2c457f9 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2017-02-16T19:30:20Z (GMT) No. of bitstreams: 1 JosimaraTatianeDaSilva_DISSERT.pdf: 1557682 bytes, checksum: fac59260c784cbb83579953ae2c457f9 (MD5) / Made available in DSpace on 2017-02-16T19:30:20Z (GMT). No. of bitstreams: 1 JosimaraTatianeDaSilva_DISSERT.pdf: 1557682 bytes, checksum: fac59260c784cbb83579953ae2c457f9 (MD5) Previous issue date: 2016-07-19 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (CAPES) / Este trabalho tem por objetivo investigar o comportamento de converg?ncia do m?todo GMRES (Generalized Minimal RESidual) e sua vers?o GMRES(m), sem e com precondicionador ILU(0) aplicado ? sistemas lineares n?o sim?tricos esparsos. Nosso interesse principal ? verificar se o comportamento destes algoritmos pode ser influenciado pela estrutura das matrizes consideradas, em particular, as Z-matrizes e a influ?ncia da escolha do grau de esparsidade. Entre os par?metros observados, concentramos no raio espectral dessas matrizes, tanto como a norma do res?duo relativo obtido por estes algoritmos. / This study aims to investigate the convergence behavior of the GMRES (Generalized Minimal Residual) method and its version GMRES(m), without and with preconditioner ILU(0) applied to sparse non-symmetric linear systems. Our main interest is to see if the behavior of these algorithms can be influenced by the structure of the matrices considered, in particular, the Z-matrices. Furthermore, the influence of the choice of the degree of sparsity. Among the observed parameters, we focus on the spectral radius of these matrices, as well as the relative residual norm obtained by these algorithms.

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2017-02-20T21:14:32Z No. of bitstreams: 1 RobsonPauloDaSilva_DISSERT.pdf: 13158742 bytes, checksum: 0a1b1bd60f390902c7d125d1b1dc0d4a (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2017-02-23T20:20:51Z (GMT) No. of bitstreams: 1 RobsonPauloDaSilva_DISSERT.pdf: 13158742 bytes, checksum: 0a1b1bd60f390902c7d125d1b1dc0d4a (MD5) / Made available in DSpace on 2017-02-23T20:20:51Z (GMT). No. of bitstreams: 1 RobsonPauloDaSilva_DISSERT.pdf: 13158742 bytes, checksum: 0a1b1bd60f390902c7d125d1b1dc0d4a (MD5) Previous issue date: 2016-08-26 / M?todos ?geis tornaram-se uma forma de desenvolvimento predominante, sendo praticados em larga escala na ind?stria e objeto de grande interesse cient?fico pela comunidade acad?mica. Apesar de qualidades reconhecidas pelos praticantes e pela academia, existem alguns pontos de fraqueza em que os M?todos ?geis poderiam se beneficiar de solu??es mais conservadoras, importadas dos m?todos tradicionais. Como, por exemplo, situa??es em que ocorre a perda da mem?ria coletiva devido ? alta rotatividade de pessoal, ou a mudan?a do desenvolvimento de onshore para offshore. Uma destas solu??es que pode trazer muitos benef?cios para os processos ?geis de desenvolvimento ? o emprego de Rastreabilidade para apoiar a gest?o de projetos. O objetivo deste trabalho ? apresentar um modelo de refer?ncia de rastreabilidade no ?mbito de gest?o de projetos em M?todos ?geis e mostrar como aplic?-lo em um contexto real. Para construir este modelo foi feita uma revis?o da literatura, na qual foram buscadas entidades de refer?ncia que representam conceitos, necessidades de informa??o, reconhecidos pela comunidade cient?fica como importantes para o rastreamento de requisitos, al?m daqueles relacionados a projetos ?geis. Estes conceitos foram empregados na an?lise dos dados de projetos de software de uma grande corpora??o, para identificar problemas tais como: falta de testes; inconsist?ncias na instancia??o dos processos; defici?ncias na gest?o dos projetos e; incoer?ncias entre as Hist?rias de Usu?rio e seus detalhamentos. / Agile methods have become a predominant form of development, being practiced on a large scale in the industry and object of great scientific interest in the academic community. Despite its many qualities recognized by practitioners and the academia, there are some points of weakness on what Agile Methods could benefit from more conservative solutions, imported from the traditional methods, for example, situations in which there is loss of collective memory due to high staff turnover, or changing the development of onshore to offshore. One of these solutions that can bring many benefits to the agile development process is the use of traceability to support project management in Agile Methods. The aim of this paper is to present a traceability reference model for Agile methods project management scope and show how to apply it in a real context. To build this model a literature review was conducted, in which reference entities were sought representing concepts, information needs, recognized by the scientific community as important for traceability requirements in addition to those related to Agile projects. These concepts were used in the construction of a traceability reference model whose usefulness was evaluated in the extraction of software project management information of a large corporation. Used to identify problems such as lack of testing; inconsistencies in the instantiation of processes; deficiencies in the management of projects and; inconsistencies between the User Stories and his detailing.

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2017-09-05T19:22:20Z No. of bitstreams: 1 JordaniaFurtadoDeOliveira_DISSERT.pdf: 977757 bytes, checksum: 1ee1444f855c47f4b9e1c80e2d6d0012 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2017-09-13T21:19:07Z (GMT) No. of bitstreams: 1 JordaniaFurtadoDeOliveira_DISSERT.pdf: 977757 bytes, checksum: 1ee1444f855c47f4b9e1c80e2d6d0012 (MD5) / Made available in DSpace on 2017-09-13T21:19:07Z (GMT). No. of bitstreams: 1 JordaniaFurtadoDeOliveira_DISSERT.pdf: 977757 bytes, checksum: 1ee1444f855c47f4b9e1c80e2d6d0012 (MD5) Previous issue date: 2017-04-27 / Experimentos fatoriais completos e fracionados com dois n?veis s?o muito usados em diversas ?reas do conhecimento e, especialmente na ind?stria. Para analisar tais experimentos ? necess?rio que todas as combina??es planejadas de tratamentos sejam executadas e as respostas sejam obtidas. No entanto, na pr?tica, muitos experimentos deixam de ser completados devido a problemas de log?stica, tempo, ou limita??es do or?amento. Esses experimentos s?o chamados de incompletos. Com o intuito de analisar adequadamente tais experimentos, diferentes m?todos s?o propostos na literatura. Este trabalho tem o objetivo de apresentar, comparar e fazer reflex?es cr?ticas de m?todos para estimar dados perdidos em experimentos fatoriais com dois n?veis. / Two-level full and fractional factorial designs are widely used in various fields, especially in industry. To analyze such experiments it is necessary that all planned treatment combinations are performed and the responses are obtained. However, in practice, many experiments fail to be completed due to logistical problems, time or budget constraints. These experiments are called incomplete. To properly analyze such experiments, diferent methods are proposed in the literature. This study aims to present, compare and make critical re ections about methods for estimating missing data in two-level factorial experiments.

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2017-10-02T21:52:09Z No. of bitstreams: 1 AlexandraCavalcanteDeFarias_DISSERT.pdf: 2272145 bytes, checksum: ecb0271158d3fa62c6cdb8a649488995 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2017-10-05T20:34:37Z (GMT) No. of bitstreams: 1 AlexandraCavalcanteDeFarias_DISSERT.pdf: 2272145 bytes, checksum: ecb0271158d3fa62c6cdb8a649488995 (MD5) / Made available in DSpace on 2017-10-05T20:34:37Z (GMT). No. of bitstreams: 1 AlexandraCavalcanteDeFarias_DISSERT.pdf: 2272145 bytes, checksum: ecb0271158d3fa62c6cdb8a649488995 (MD5) Previous issue date: 2017-06-09 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (CAPES) / As Mudan?as Clim?ticas Globais (MCGs) s?o geralmente divulgadas e discutidas como Aquecimento Global, denomina??o esta que restringe o problema a um aumento na temperatura. Muito al?m de tratar-se apenas de um aumento da temperatura mundial, as MCGs atingem atualmente a esfera das pol?ticas p?blicas, gerando interfer?ncias na vida dos seres humanos. ? importante ainda salientar que em se tratando das MCGs, existe uma dist?ncia temporal das consequ?ncias mais alarmantes do fen?meno, bem como da efic?cia das a??es de enfrentamento, que tem suas respostas a longo prazo. Torna-se, portanto, de extrema import?ncia a considera??o do futuro, de forma a pensarmos n?o s? nas mudan?as de comportamento refletindo na atualidade, mas em d?cadas e s?culos ? frente. Ao levar em considera??o que as crian?as de hoje experienciar?o as consequ?ncias mais graves do problema, o estudo em quest?o investigou como 46 crian?as de 7 a 10 anos, de duas escolas particulares natalenses percebem as MCGs a partir das informa??es que recebem sobre esse tema. O estudo adotou uma perspectiva multimetodol?gica, que envolveu t?cnicas combinadas de entrevista semiestruturada, desenho e grupo focal com as crian?as participantes, de modo a proporcionar uma abordagem l?dica adequada a esse p?blico. A an?lise dos dados integrou os resultados das tr?s t?cnicas, cujo conte?do possibilitou a cria??o de eixos tem?ticos, relacionados aos referenciais te?ricos dos estudos da Psicologia Ambiental. Os eixos tem?ticos assim obtidos foram: local-global, causa-consequ?ncia, impacto ? vida humana ? aos ecossistemas e mitiga??o ? adapta??o. Os resultados demonstraram que apesar da alta complexidade, os participantes puderam se expressar a respeito do tema, principalmente quando quest?es ambientais foram previamente trabalhadas no contexto escolar. Essa constata??o, aliada ao compromisso manifestado pelas crian?as com medidas de mitiga??o, fornece subs?dios importantes para o planejamento de projetos de educa??o ambiental para este p?blico. / Global Climate Changes (GCC) are generally disclosed and discussed as Global Warming (GW), a term that restricts the problem to an increase in temperature. Besides being just an increase in global temperature, GCC now reaches the public policies sphere, causing interference in the lives of human beings. It is important to point out that in the case of GCC there is a temporal detachment from the current moment to the most alarming consequences of the phenomenon, as well as uncertainty about the effectiveness of mitigation actions, which have their necessarily present long-term answers. It is therefore of utmost importance, consideration of the future, to think not only in behavior changes reflecting today, but in decades and centuries ahead. Taking into account that today's children will experience the most serious consequences of the problem sometime in the future, the study aimed to investigate how 46 children aged 7 a 10 years old from two private schools from Natal perceive GCC through the information they receive about this topic. The study adopted a multi-methodological perspective with the participating children, involving combined techniques of semi-structured interview, drawing and focus group, in order to provide a ludic approach appropriate to this audience. The analysis of the data integrated the results of the three techniques, whose content allowed the creation of thematic axes, related to the theoretical references of the environmental psychology literature. The thematic axes thus obtained were: local-global, cause-consequence, impact on human life ? on ecosystems and mitigation - adaptation. The results showed that despite the high complexity, the participants were able to express themselves about the theme, especially when the topics had been previously treated in the school context. This finding, together with the commitment expressed by children with mitigation measures, provides important subsidies for the planning of environmental education projects for this public.

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2017-11-01T21:47:47Z No. of bitstreams: 1 DanniloMartinsCunha_DISSERT.pdf: 1409598 bytes, checksum: ba0a80abd8341353d6629fde5b97e659 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2017-11-08T19:02:46Z (GMT) No. of bitstreams: 1 DanniloMartinsCunha_DISSERT.pdf: 1409598 bytes, checksum: ba0a80abd8341353d6629fde5b97e659 (MD5) / Made available in DSpace on 2017-11-08T19:02:46Z (GMT). No. of bitstreams: 1 DanniloMartinsCunha_DISSERT.pdf: 1409598 bytes, checksum: ba0a80abd8341353d6629fde5b97e659 (MD5) Previous issue date: 2017-07-03 / Este trabalho tem o objetivo de apresentar a estrutura, a descri??o e a valida??o de uma arquitetura de software. Essa arquitetura tem a capacidade de possibilitar a constru??o de novas ferramentas. Essas novas ferramentas possuem o prop?sito de realizar a avalia??o cont?nua do desempenho do aluno no processo de ensino-aprendizagem. Atrav?s de uma pesquisa de car?ter explorat?rio e a fim de validar a arquitetura de software proposta, foi realizado um estudo de caso composto por tr?s situa??es. Esse estudo de caso foi realizado nas turmas do 1? ano do curso de inform?tica do Campus Avan?ado Lajes do Instituto Federal de Educa??o, Ci?ncia e Tecnologia do Rio Grande do Norte (IFRN). Esse estudo de caso abordou o assunto de fun??es exponenciais da disciplina de matem?tica 1. Logo ap?s o professor ministrar o assunto de fun??es exponenciais, uma avalia??o composta por apenas uma ?nica quest?o objetiva foi constru?da e disponibilizada para a turma durante uma aula expositiva. Em seguida, esses alunos responderam a avalia??o em quest?o, permitindo que o professor gerasse um breve relat?rio a respeito do desempenho da turma em rela??o ao conte?do abordado em sala de aula. Uma vez de posse desses dados, o professor teve condi??es de decidir se realizava uma revis?o a respeito do assunto ministrado ou se dava sequ?ncia ao desenvolvimento de sua disciplina. Em uma situa??o do estudo de caso, o professor observou que ele poderia dar sequ?ncia ao desenvolvimento de sua disciplina. No entanto, nas demais situa??es do estudo de caso, o professor percebeu que ele deveria realizar uma breve revis?o a respeito do conte?do abordado, visto que as turmas haviam apresentado um desempenho muito baixo. Esse processo se deu atrav?s da utiliza??o de um sistema esquel?tico desenvolvido com base na arquitetura de software proposta. O sistema constru?do foi implementado atrav?s da utiliza??o de tecnologias web a fim de disponibiliz?-lo na Internet. Dessa forma, esse sistema estaria mais acess?vel aos alunos, seja por um notebook, tablet, smartphone ou qualquer outro dispositivo que possibilitasse o acesso ? Internet. Pode-se dizer que essa ? uma maneira ?gil de fornecer um melhor direcionamento em rela??o aos assuntos ministrados durante as aulas dos professores. Ap?s a realiza??o do processo de valida??o da arquitetura de software proposta, os dados gerados foram coletados, analisados e apresentados. Por fim, tem-se as conclus?es extra?das a partir da constru??o deste trabalho e algumas propostas que poder?o ser desenvolvidas em trabalhos futuros. / This work has the objective of a structure, a description and a validity of a software architecture. This architecture has an ability to enable the construction of new tools. These new tools aim to perform a continuous assessment of performance throughout the teaching-learning process. Through a research of exploratory nature and in order to validate a proposed software architecture, a case study composed of three situations was carried out. This case study was carried out in the 1st year classes of the computer science course of the Lajes Advanced Campus of the Federal Institute of Education, Science and Technology of Rio Grande do Norte (IFRN). This case study addresses the subject of the exponential functions of the mathematics discipline 1. Soon after the teacher teaches the subject of exponential functions, an assessment composed of only a single objective question was constructed and made available to a class during an expository class. Then, these students responded to an assessment in question, allowing the teacher to generate a brief report on the performance of the class in relation to the content addressed in the classroom. Once in possession of data, the teacher was able to decide whether to carry out a revision regarding the matter given or to develop his discipline. In a case study situation, the teacher noted that he may have told the development of his discipline. However, in what concerns a study of the content addressed, since classes had a very low performance. This process is created through the use of a skeletal system developed based on the proposed software architecture. The built system was implemented through the use of web technologies on the Internet. In this way, this system is more accessible to students, through a notebook, tablet, smartphone or any other device that allows access to the Internet. It can be said that it is a way of providing a better direction in relation to those taught during teacher's classes. After the validation process of the software architecture, the generated data were collected, analyzed and described. Finally, we draw conclusions drawn from the construction of the work and some proposals and development materials developed in future works.

nÃo hà / A proposta deste trabalho tem como objetivo central explicitar a presenÃa de um carÃter transvalorativo na primeira obra publicada por Nietzsche: O nascimento da tragÃdia. Esta traz embrionariamente, segundo o prÃprio filÃsofo, o que seria mais tarde o objetivo central de toda sua filosofia: a transvaloraÃÃo de todos os valores, isto Ã, o nascimento de um novo parÃmetro de avaliaÃÃo, de novos valores. Nietzsche, em textos de seu Ãltimo perÃodo filosÃfico como Tentativa de autocrÃtica, CrepÃsculo dos Ãdolos e Ecce Homo, [aponta para essa intenÃÃo de redimensionamento de suas teses iniciais; ou seja,] alega que O nascimento da tragÃdia foi a sua primeira TransvaloraÃÃo de todos os valores. Focando exclusivamente em textos escritos na sua juventude (1872 â 1875) e maturidade (1886 â 1888) filosÃfica, a relaÃÃo entre arte e conhecimento, nos perÃodos apontados, indicarà em que sentido a transvaloraÃÃo deve seguir. à na arte, mais precisamente na arte trÃgica, que Nietzsche vislumbra uma existÃncia positiva, no sentido de que a arte afirma a vida. O homem, assumindo uma vida artÃstica, ou seja, reconhecendo-se como criador e destruidor de valores, torna-se capaz de promover uma mudanÃa radical nos valores vigentes, uma transvaloraÃÃo dos valores. Entretanto, a crenÃa no conhecimento ilimitado, que a tendÃncia inartÃstica do socratismo engendrou em nossa sociedade moderna, obsta a vinda de uma nova era trÃgica (artÃstica). Essa crenÃa supervaloriza a razÃo dotando-a, segundo Nietzsche, erroneamente da capacidade de desvendar os enigmas da vida. Assim, O nascimento da tragÃdia traz em si as bases da filosofia tardia nietzschiana, pois nela jà se encontram temas de extrema importÃncia do seu filosofar, sÃo eles: crÃtica à razÃo exacerbada iniciada por uma tendÃncia inartÃstica denominada de socratismo (estÃtico e teÃrico) e a apologia a uma sabedoria trÃgica (dionisÃaca), a qual sà pode ser aprendida atravÃs da arte. A luta de Nietzsche Ã, portanto, alertar o homem moderno, herdeiro do socratismo, o quanto a vida guiada por essa tendÃncia inartÃstica à decadente; à mostrar que sà atravÃs de uma existÃncia artÃstica o homem seria capaz de superar valores decadentes. A valorizaÃÃo da arte à a proposta afirmativa de Nietzsche em O nascimento da tragÃdia que serà retomada em sua filosofia derradeira, pois à somente por meio dela que uma transvaloraÃÃo de todos os valores se tornarà possÃvel e, consequentemente, a vida serà tonificada e afirmada. / The major purpose of the present study is to make explicit the possible presence of a revaluative approach in Nietzscheâs first published work, The birth of tragedy. That book brings, according to the philosopher, the first signs of his mature central conception: the revaluation of all values, that is, the birth of a new consciousness and new values. In the late period of his philosophical works, such as Ecce homo, Twilight of idols and Attempt of self-critique, Nietzsche points out to that intention of a reformulation of his initial conceptions. That is to say, he declares that The birth of tragedy was his first revaluation of all values. If we mainly focus on his early (1872 â 1875) as well as his late (1886 â 1888) philosophical works, we can find throughout the relation between art and knowledge in what sense the revaluation of all values is to be conceived. It is on art, more specifically on the art of tragedy that Nietzsche sees a positive way for human existence, since art makes life become positive. If mankind adopted a way of life guided by its own artistical powers, it could recognize its proper skills either to create or to destroy moral values, becoming able of promoting a radical change of predominant moral values, that is, a revaluation of all values. Nevertheless, the belief of an unlimited knowledge, which the unartistic tendency inherited from the aesthetic socratism opposes the offspring of a new tragic (artistic) approach. That belief erroneously over-estimates rationality as it were able to solve all enigmas of life. Therefore, The birth of tragedy brings the very foundations of Nietzscheâs late philosophy, since one can find in that work the most important issues of his thought: the critique of an exaggerated rationality initiated by an unartistic tendency named aesthetical socratism; the apology of a tragic wisdom (dionisiac), which will only be apprehended by art. Nietzscheâs struggle, therefore, aimed to call modern mankindâs attention, witch inherited aesthetic socratism, to realize the decadence of a lifestyle guided by unartistic tendencies; he also pointed out that only throughout an artistic existence mankind would be able to overcome decadent values. In that sense, art is Nietzscheâs affirmative proposal in The birth of tragedy which will be maintained in his latest philosophy. That is because it is only by that first work that the philosopher would be able to propose a revaluation of all values in his final work, by means of which life would be toned up in order to become positive.