Submitted by Sara Ribeiro (sara.ribeiro@ucb.br) on 2017-08-01T17:59:43Z No. of bitstreams: 1 JeeserAlvesdeAlmeidaDissertacao2011.pdf: 1154152 bytes, checksum: cb07bfde220ffa2bad6a1787164f6cea (MD5) / Approved for entry into archive by Sara Ribeiro (sara.ribeiro@ucb.br) on 2017-08-01T18:00:00Z (GMT) No. of bitstreams: 1 JeeserAlvesdeAlmeidaDissertacao2011.pdf: 1154152 bytes, checksum: cb07bfde220ffa2bad6a1787164f6cea (MD5) / Made available in DSpace on 2017-08-01T18:00:00Z (GMT). No. of bitstreams: 1 JeeserAlvesdeAlmeidaDissertacao2011.pdf: 1154152 bytes, checksum: cb07bfde220ffa2bad6a1787164f6cea (MD5) Previous issue date: 2011-03-01 / Predictive equations have been widely used to determine indirect maximal oxygen uptake (VO2max) as it can evaluate a large number of people with low cost and, in most cases, nearing the specificity of some sports. However, the VO2max can be influenced by various environmental and genetic factors, the validity of these equations on estimating VO2max of young brazilians should be further studied. This investigation includes two studies with young physically active brazilians. The first one evaluated the validity of a predictive equation proposed by Cureton et al., (1995) in estimating VO2max from the 1600m running performance, and also to suggest a new and specific predictive equation for physically active brazilians. . The second study examined the possible influence of I/D polymorphism of ACE genotype on determining the real and predicted VO2max in these participants. For the study I thirty young and physically active underwent both to a 1600m running test and an incremental cardiopulmonary exercise test (IT) on a treadmill with analysis of expired gases. The participants were divided into two groups (G1 and G2) being that in G1 the new equation was generated (Simples linear regretion between mean velocity at 1600m and VO2max) while its validity was examined in G2. When applied on the results of G2, a One Way ANOVA showed no statistical difference and a high correlation between VO2max obtained by the predictive equation generated in G1 [VO2max = (0.177 * 1600Vm) + 8.101] with the values of IT (50.1 ??7.2 mL.kg-1.min-1 vs 50.1 ??7.1 mL.kg-1.min-1) (P>0.05) (R = 0.81). However the VO2max results determined from equation of Cureton et al., (1995) [VO2peak = -8.41 (MRW) +0.34 (MRW) 2 + 0.21 (Age x Gender) ??? 0.84 (BMI) + 108.94] (44.2?? 6.5mL.kg-1.min-1) differed from both IT and the values obtained from the new proposed equation (P<0.05). The concordance between methods was confirmed by Bland and Altman technique. For the study 2, 57 participants underwent the same procedures as study 1, but had their DNA extracted and were genotyped for the insertion/deletion (I/D) polymorphism of the ACE gene. The participants were separated into three groups accordingly to the I/D polymorphism of ACE gene (being allocated either in DD, ID, or II group). The results revealed significantly lower 1600m velocity as well as VO2max for DD carriers compared to II and ID individuals (45.6 ??1.81 mL.kg-1.min-1 vs 51.9 ?? 0.79 mL.kg-1.min-1 vs 54.4 ?? 0.96 mL.kg-1.min-1) (P <0.01). On the other hand, a within-group analysis revealed that VO2max obtained in IT did not differ from that calculated by the equation generated in Study I. Moreover, the equation generated in Study I was considered valid for estimating the VO2max in physically active young adults through a 1600m running test despite of being II, ID or DD carrier. Although the influence of I/D polymorphism of ACE gene on VO2max and middle distance performance , the accuracy of the proposed equation on predicting VO2max did not suffer interference from the I/D polymorphism of the ACE gene. / Equa????es de predi????o t??m sido amplamente utilizadas na determina????o indireta do consumo m??ximo de oxig??nio (VO2max), pois podem avaliar um grande n??mero de pessoas com baixo custo e, na maioria das vezes, chegando pr??ximo ?? especificidade de algumas modalidades esportivas. Contudo, sabendo-se que o VO2max pode ser influenciado por diversos fatores ambientais e gen??ticos, a validade destas equa????es em estimar o VO2max de brasileiros jovens deve ser melhor estudada. A presente disserta????o integra dois estudos realizados com jovens estudantes fisicamente ativos. O objetivo do primeiro estudo foi analisar a validade da equa????o proposta por Cureton et al. (1995) em estimar o VO2max dos participantes a partir do teste de corrida de 1600m, al??m de sugerir e verificar a validade de uma nova equa????o de predi????o espec??fica para brasileiros fisicamente ativos, a partir do desempenho no mesmo teste. O segundo estudo examinou a poss??vel influ??ncia do polimorfismo I/D do gene da enzima conversora de angiotensina (ECA) sobre a determina????o direta e indireta do VO2max nestes participantes. Foram recrutados, para o estudo I, trinta homens jovens e fisicamente ativos que realizaram um teste de corrida de 1600m e um teste incremental (TI) ergoespirom??trico em esteira com an??lise de gases expirados para determina????o direta do VO2max. Os participantes foram divididos em dois grupos (G1 e G2), sendo que no G1 a nova equa????o foi gerada (Regress??o linear simples entre VO2max e velocidade m??dia em 1600m 1600Vm) enquanto que a validade foi analisada no G2. Quando aplicada nos resultados do G2, ANOVA One Way revelou n??o haver diferen??a estat??stica entre o VO2max obtido pela equa????o de predi????o gerada no G1 [VO2max=(0,177*1600Vm) +8,101] com os valores do TI (50,1+7,2 mL.kg-1.min-1 vs 50,1+7,1 mL.kg-1.min-1), apresentando alta correla????o entre si (r=0,81). Entretanto, a equa????o de Cureton et al (1995) [VO2peak = -8,41(MRW) + 0,34 (MRW) 2 + 0,21 (Age x Gender) -0,84 (BMI) + 108,94] (44,2+6,5 mL.kg-1.min-1) mostrou-se diferente do TI bem como dos valores obtidos com a nova equa????o proposta (P<0,05). A an??lise de concord??ncia entre os m??todos foi analisada pela t??cnica de Bland & Altman. A partir desta nova equa????o, 57 participantes integraram o Estudo II e realizaram os mesmos procedimentos metodol??gicos, contudo tiveram seu DNA extra??do e foram genotipados para o polimorfismo I/D do gene da ECA. Assim, os participantes foram separados em tr??s grupos diferentes, de acordo com os gen??tipos do gene da ECA (DD ID II). Os resultados revelaram valores significativamente mais baixos de VO2max para indiv??duos DD quando comparados com os indiv??duos ID e II (45,6 +1,81 mL.kg-1.min-1) (51,9 +0,79 mL.kg-1.min-1) e54,4+0,96 mL.kg-1.min-1) respectivamente (P<0,01). Quando comparados o VO2max obtido no TI e o estimado pela equa????o gerada no Estudo I, para cada grupo espec??fico, n??o foram observadas diferen??as estat??sticas intra-grupos. Portanto, a equa????o que foi gerada no Estudo I foi considerada v??lida para estimar o VO2max de indiv??duos jovens fisicamente ativos atrav??s do teste de corrida em 1600m. Apesar do polimorfismo I/D do gene da ECA poder influenciar os valores de VO2max bem como o desempenho em provas de m??dia dist??ncia (1600m), a precis??o da equa????o proposta para predi????o do VO2max n??o sofreu interfer??ncia do polimorfismo I/D do gene da ECA.

The thesis is concerned with the actual topic -- market entry by new banks (Air Bank, Zuno Bank, Equa Bank) to the Czech banking market in 2011. The work analyses all reachable data, circumstances of their foundation, management structure, product offer and especially the chosen strategy. The whole topic is put in context of actual macroeconomic conditions, which have crucial importance on their functioning. Partial aim of the work is to define potential risks and weaknesses of these institutions and especially review the possible impact on the Czech banking sector. Part of the thesis also considers customer review of actual product offers from these new banks.

Syftet med detta examensarbete har främst varit att förbättra inomhusklimatet i byggnaden Greenhouse, tillhörande företaget IVT Värmepumpar i Tranås. De anställda upplever problem med värme i byggnadens utbildningslokaler främst under sommarhalvåret. Tid har även lagts på att ta fram åtgärder som sänker byggnadens energianvändning i form av el och värme. Då examensarbetet utfördes under hösten användes ett simuleringsprogram för att få en bild av inomhusklimatet under sommarhalvåret. En modell av byggnaden byggdes upp i simulationsprogrammet, komplett med ventilations- och värmesystem. För att validera modellen som konstruerats utfördes flertalet mätningar under en veckas tid. Simuleringsmodellen kalibrerades sedan mot dessa mätningar för att efterlikna de verkliga förhållandena i så stor mån som möjligt. När modellen överrensstämde mot mätningarna utfördes simuleringar under sommarhalvåret för att få en bild över inomhusklimatet och för att påvisa eventuella problem. Två olika scenarier under sommaren konstruerades med olika värmelaster och tidscheman. Scenario 1 testade hur inomhusklimatet påverkades av en stor värmelast i bara en utbildningslokal och scenario 2 behandlade en relativt stor värmelast i alla utbildningslokaler. Resultatet från simuleringarna visade på problem med värme i lokalerna, dock inte i samma utsträckning som de anställda upplever. Efter analys av inomhusklimatet och ventilations- och värmesystem togs flertalet åtgärdsförslag fram. De flesta åtgärdsförslag implementerades i simuleringsmodellen för att se vilken potential åtgärden har och se deras effekt under sommarhalvåret. Åtgärdsförslagen har antingen som mål att förbättra inomhusklimatet eller sänka energianvändningen. Nedan i Tabell 1 presenteras dessa förslag (ej inkluderad här, se istället själva rapporten), vissa förslag har även en uppskattad besparingspotential för byggnadens värmebehov och ventilationsaggregatets elförbrukning per år. Då detta examensarbete eventuellt inte löser det värmeproblem som finns i byggnaden föreslås även vidare åtgärder som kan behöva vidtas för att komma närmare en lösning på problemet. / The purpose of this thesis has primarily been to improve the indoor climate in the building Greenhouse, belonging to the company IVT Värmepumpar in Tranås. The employees are experiencing problems with heat in the building's training facilities, specifically in the summer. An effort has also been made to develop measures that reduce building energy use in the form of electricity and heat. As the thesis was conducted during the autumn a simulation program was used to obtain a picture of the indoor climate during the summer. A model of the building was constructed in the simulation program, complete with ventilation and heating systems. To validate the model constructed, several measurements were taken during one week. The simulation model was calibrated against these measurements to mimic reality as much as possible. When the model was consistent with the measurements, simulations were performed in the summer to get a picture of the indoor climate and to detect any problems.   Two different scenarios during the summer were constructed with different heat loads and time schedules. Scenario 1 tested how the indoor climate was affected by a large heat load in only one training facility, and, scenario 2 tested how the indoor climate was affected by a relatively large heat load in all training facilities. The results from the simulations showed problems with heat in the premises, albeit not to the extent of the employees previously stated experience. After analysis of the indoor climate, ventilation and heating systems, several actions were proposed. Most of these actions were implemented in the simulation model to see their potential and their effects in the summer. These proposals are either committed to improving the indoor climate or to reduce energy usage. These proposals are presented in Table 1 below (not included here, see the actual report) ; some proposals also have an estimated savings potential for total heating and the air handling unit’s electricity usage per year. Since this thesis might not solve the heat problems in the building, this report also includes suggestions on measures that may be required to reach a solution to the problem.

Submitted by Setor de Tratamento da Informa??o - BC/PUCRS (tede2@pucrs.br) on 2015-06-18T11:25:40Z No. of bitstreams: 1 470738 - Texto Completo.pdf: 1085233 bytes, checksum: 85f0e670febf4299c2ecf9cb1ce0b18a (MD5) / Made available in DSpace on 2015-06-18T11:25:40Z (GMT). No. of bitstreams: 1 470738 - Texto Completo.pdf: 1085233 bytes, checksum: 85f0e670febf4299c2ecf9cb1ce0b18a (MD5) Previous issue date: 2015-03-30 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES / The purpose of this dissertation consists of two articles, it is to analyze the influence of agglomeration economies and the Problem of Modifiable Area Unit (MAUP) have on the salary level. For this, two articles are needed to better explanation of these data. The first is dedicated to exploit economies of agglomeration from the earnings equations. Through the Exploratory Spatial Data Analysis (ESDA) and the 2010 Census data, there is the existence of spatial associations in the regional aggregates analyzed, such as spatial agglomerations or homogeneous regions (clusters), and atypical observations (outliers). In the second part of the article dedicated to the estimation of the econometric model, use up wage equations with formulation based on the model developed by Fingleton (2003), whose main hypothesis points to a positive relationship between wage differentials and job density. In the second article, we present a case of MAUP with the IBGE Census 2010 data on the average salary of Brazilian workers. It is discussed and demonstrated the need to consider the differences in results arising from the regionalization chosen by the researcher. The analysis focuses on five levels: micro, municipalities, micro, meso and Brazilian states, using for this purpose, earnings equations (Mincer), proposed by Mincer (1974). When analyzing Mincer equations, from the perspective of different regional scales, a first point to Brazil, the role of its variables becomes very important, especially for education. The results show that the conclusions drawn and the policies adopted, from income regressions, are dependent on the choice of geographically analyzed. / O objetivo dessa disserta??o, composta por dois artigos, ? analisar a influ?ncia que as economias de aglomera??o e o Problema da Unidade de ?rea Modific?vel (MAUP) t?m sobre o n?vel salarial. Para tanto, dois artigos s?o necess?rios para melhor explana??o destes dados. O primeiro ? dedicado a explorar as economias de aglomera??es a partir das equa??es de rendimentos. Por meio da An?lise Explorat?ria de Dados Espaciais (AEDE) e dos dados do Censo 2010, verifica-se a exist?ncia de associa??es espaciais, nas agrega??es regionais analisadas, tais como aglomera??es espaciais ou regi?es homog?neas (clusters), e observa??es at?picas (outliers). Na segunda parte do artigo, dedicada ? estima??o do modelo econom?trico, utilizam-se equa??es salariais, com formula??o baseada no modelo desenvolvido por Fingleton (2003), cuja principal hip?tese aponta para uma rela??o positiva entre os diferenciais de sal?rios e a densidade de trabalho. No segundo artigo, apresenta-se um caso de MAUP, com dados do Censo 2010 do IBGE, sobre o sal?rio m?dio dos trabalhadores brasileiros. ? discutida e demonstrada a necessidade de se considerarem as diferen?as nos resultados obtidos, oriundas da regionaliza??o escolhida pelo pesquisador. A an?lise se centra em cinco n?veis: microdados, munic?pios, microrregi?es, mesorregi?es e estados brasileiros, utilizando, para tanto, equa??es de rendimentos (mincerianas), propostas por Mincer (1974). Ao se analisar equa??es mincerianas, sob a perspectiva de diferentes escalas regionais, ponto in?dito para o Brasil, o papel de suas vari?veis torna-se de suma import?ncia, com destaque para a educa??o. Os resultados mostram, que as conclus?es obtidas e as pol?ticas adotadas, a partir de regress?es de rendimento, s?o dependentes da escolha do n?vel geogr?fico analisado.

Submitted by Sara Ribeiro (sara.ribeiro@ucb.br) on 2017-04-05T19:49:28Z No. of bitstreams: 1 EdilsonFranciscoNascimentoDissertacao2016.pdf: 2579838 bytes, checksum: 1e1c03f1aeb7995a8c1924829c70f17d (MD5) / Made available in DSpace on 2017-04-05T19:49:28Z (GMT). No. of bitstreams: 1 EdilsonFranciscoNascimentoDissertacao2016.pdf: 2579838 bytes, checksum: 1e1c03f1aeb7995a8c1924829c70f17d (MD5) Previous issue date: 2016-08-05 / The aim of this study was to evaluate the nutritional status and make a correlation between the use of different assessment protocols most commonly used, compared with DEXA (Dual-energy X-ray absorptiometry) in children and teenagers with Down syndrome (DS) . The sample comprised 41 children and adolescents from both gender, aged between 9 and 19 years old, being 26 with DS from ???Espa??o ConViv??ncias??? Project and 15 volunteers without DS rated as control group (CG). Anthropometric measurements of height, weight, waist circumference and hip, BMI (Body Mass Index) and skinfold thickness were made, and to calculate the the body fat %G it was used four protocols and DEXA. Blood samples were taken for biochemical analysis also applying if you recall 24 hours food intake and the isometric strength test. It was observed that 40% of the control group showed overweight and obesity while in the DS group was detected the rate of overweight and obesity was 50%. The caloric intake in both groups was according to the daily recommendations, but protein intake was above recommended on both groups. The stature, strength and reason force had a significant difference P <0.05 corroborating previous studies where people with Down syndrome have a lower height and strength when compared to the general population. In biochemical analyzes significant changes were shown (P <0.05) to triiodothyronine (T3) between the GC and SD. It was observed that in the DS group in Jackson and Pollock protocol ICC (0.83), r (0.82) and R?? (0.86) and Slaugter ICC protocol (0.74), r (0.79) R2 (0.62) wherein the linear regression analysis indicated that most explanatory power with equation was followed by Jackson and Pollock et al Slaugter. The group with DS showed lower isometric strength when compared to the CG and predisposition to being overweight and even obesity, a problem that can be worsened by poor eating habits. It was concluded that the equations of Slaughter et al would be the most appropriate to determine the %G in children and teenagers with DS by requiring less knowledge from appraiser to perform it, because of the amount folds to be analyzed, requiring less time for implementation and readiness access to the folds. It was noticed, finally, that because this is the first Brazilian study on this subject, there is a need for further studies related to the prediction of body composition in children and teenagers with DS that could promote the development of a specific equation for this audience. / O objetivo desse trabalho foi avaliar o estado nutricional e fazer uma correla????o do uso dos diferentes protocolos de avalia????o da composi????o corporal mais utilizados, comparados com a absometria de raio-X de dupla energia ??? DEXA, em crian??as e adolescentes com S??ndrome de Down (SD). A amostra foi constitu??da 41 crian??as e adolescentes de ambos os sexos, com idade entre 9 e 19 anos, sendo 26 (com SD do Projeto Espa??o Com-Viv??ncias e 15 volunt??rios sem SD classificados como grupo controle (GC). Foram feitas medidas antropom??tricas de estatura, peso, circunfer??ncia de cintura e de quadril, IMC, dobras cut??neas e, para calcular o %G utilizou-se quatro protocolos e o DEXA. Foram realizadas coletas de sangue para an??lises bioqu??micas, aplicando-se ainda o recordat??rio de consumo alimentar de 24 horas e o teste de for??a isom??trica. Foi observado que 40% do GC apresentaram sobrepeso e obesidade enquanto no grupo com SD a taxa de sobrepeso e obesidade foi de 50%. A ingesta cal??rica nos dois grupos esteve de acordo com as recomenda????es di??rias, por??m o consumo de prote??nas esteve acima do recomendado para ambos os grupos. A estatura, for??a e raz??o for??a tiveram uma diferen??a significativa P<0,05 corroborando com estudos anteriores onde pessoas com SD apresentam menor estatura e for??a quando comparadas ?? popula????o em geral. Nas an??lises bioqu??micas foram apresentadas altera????es significativas (P<0,05) para triiodotironina (T3) entre o GC e SD. Foi observado que no grupo SD no protocolo de Jackson e Pollock ICC(0,83), r(0,82) e R??(0,86) e no protocolo de Slaugter ICC(0,74), r(0,79), R2(0,62) sendo que a an??lise de regress??o linear indicou que a equa????o com maior poder explicativo foi a Jackson e Pollock seguida de Slaugter et al. O grupo com SD apresentou menor for??a isom??trica quando comparado ao GC e predisposi????o a ter peso excessivo e at?? mesmo obesidade, problema que pode ser agravado pelos h??bitos alimentares inadequados. Concluiu-se que as equa????es de Slaughter et al seria a mais adequada para determinar o %G em crian??as e adolescentes com SD, por exigir uma menor capacita????o do avaliador para executa-la, pela quantidade menor de dobras a serem analisadas, demandando menor tempo para execu????o e facilidade de acesso as dobras. Percebeu-se, por fim, que por este ser o primeiro estudo brasileiro sobre este tema, h?? necessidade de novos estudos relacionados ?? predi????o de composi????o corporal de crian??as e adolescentes com SD que poderiam promover o desenvolvimento de uma equa????o espec??fica para este p??blico.

Made available in DSpace on 2014-12-17T14:13:55Z (GMT). No. of bitstreams: 1 JozemarPS_TESE.pdf: 2100894 bytes, checksum: e8893f877e9af11883f12cef9d5da18c (MD5) Previous issue date: 2014-05-16 / As condi??es de vida s?o usualmente entendidas como importantes fatores intervenientes das causas b?sicas de mortalidade e da qualidade de vida da popula??o. Ao considerar esta quest?o em uma popula??o idosa e sua influ?ncia nas causas mais relevantes que as levam ? morte, teve-se como objetivo principal, estudar a associa??o da mortalidade dos idosos por doen?as cardiovasculares para ambos os sexos, com indicadores que expressam as condi??es de vida da popula??o do Nordeste, nos anos 2000 e 2010. Para atingir tal prop?sito foi tra?ado um desenho de estudo ecol?gico com cortes transversais nos anos 2000 e 2010 tendo como unidades de an?lises as microrregi?es e a mesorregi?es do Nordeste. Utilizou-se a Modelagem de Equa??es Estruturais (MEE) para explicar essas associa??es, tomando como base as estat?sticas de ?bitos por doen?as cardiovasculares (construto end?geno) e vari?veis socioecon?micas e demogr?ficas (construto ex?geno) das microrregi?es do Nordeste, para o ano 2000. Utilizou-se o M?todo dos Componentes Principais como recurso metodol?gico na constru??o de um ?ndice sint?tico que permitiu classificar as condi??es de vida nas mesorregi?es do Nordeste, tomadas como unidades de an?lises, nos anos 2000 e 2010, de acordo com as condi??es de vida e as principais causas de mortalidade por doen?as cardiovasculares. A aplica??o da MEE sugeriu uma forte associa??o do construto ex?geno condi??es de vida, composto pelos indicadores: anos de estudo dos homens idosos, percentual de idosos em domic?lios com banheiro/?gua encanada e probabilidade de sobreviv?ncia aos 60 anos, com a vari?vel desfecho taxa de mortalidade por doen?as cardiovasculares dos homens e mulheres idosos. O ?ndice sint?tico constru?do permitiu identificar os diferentes ritmos de envelhecimento populacional entre as regi?es e distintos processos de evolu??o dos n?veis de mortalidade pelas doen?as cardiovasculares, muitas delas compat?veis com as condi??es de vida no Nordeste. Os resultados sugerem que o construto condi??es de vida est? fortemente associado por esta causa de morte entre os idosos para ambos os sexos no Nordeste do Brasil. Neste sentido, sugere-se que estes resultados sejam considerados como relevantes para formula??o de pol?ticas de sa?de regionais voltadas para este contingente populacional do Nordeste do Brasil

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2016-06-14T20:19:26Z No. of bitstreams: 1 IgorGuedesReboucas_DISSERT.pdf: 4109459 bytes, checksum: 9d05bc4fe3e1208e2195bfe4405550de (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2016-06-15T23:42:40Z (GMT) No. of bitstreams: 1 IgorGuedesReboucas_DISSERT.pdf: 4109459 bytes, checksum: 9d05bc4fe3e1208e2195bfe4405550de (MD5) / Made available in DSpace on 2016-06-15T23:42:40Z (GMT). No. of bitstreams: 1 IgorGuedesReboucas_DISSERT.pdf: 4109459 bytes, checksum: 9d05bc4fe3e1208e2195bfe4405550de (MD5) Previous issue date: 2015-12-17 / Este trabalho consiste na elabora??o de uma Rede Neural Artificial (RNA) com o fim de modelar o comportamento de comp?sitos quando submetidos a carregamento de fadiga. A proposta ? desenvolver e apresentar um modelo misto, que associa uma equa??o anal?tica (Equa??o de Adam) ? estrutura da RNA. Tendo em vista que os comp?sitos geralmente apresentam comportamentos semelhantes quando sujeitos a carregamentos flutuantes, essa equa??o visa estabelecer um padr?o pr?-definido de compara??o para um material gen?rico, a fim de que a RNA ajuste o comportamento de outro comp?sito a esse padr?o. Dessa forma, a RNA n?o precisaria aprender por completo o comportamento de determinado material, pois a Equa??o de Adam faria boa parte do trabalho. Este modelo foi utilizado em duas arquiteturas de rede diferentes, modular e perceptron, com o objetivo de analisar a sua efici?ncia em estruturas distintas. Al?m das diferentes arquiteturas, foram analisadas as respostas geradas a partir de dois conjuntos de dados diferentes ? com tr?s e duas curvas S-N. Esse modelo tamb?m foi comparado com os resultados da literatura especializada, que utilizam uma estrutura convencional de RNA. Os resultados consistem em analisar e comparar algumas caracter?sticas, como a capacidade de generaliza??o, a robustez e os Diagramas de Goodman, desenvolvidas pelas redes. / This work consists basically in the elaboration of an Artificial Neural Network (ANN) in order to model the composites materials? behavior when submitted to fatigue loadings. The proposal is to develop and present a mixed model, which associate an analytical equation (Adam Equation) to the structure of the ANN. Given that the composites often shows a similar behavior when subject to float loadings, this equation aims to establish a pre-defined comparison pattern for a generic material, so that the ANN fit the behavior of another composite material to that pattern. In this way, the ANN did not need to fully learn the behavior of a determined material, because the Adam Equation would do the big part of the job. This model was used in two different network architectures, modular and perceptron, with the aim of analyze it efficiency in distinct structures. Beyond the different architectures, it was analyzed the answers generated from two sets of different data ? with three and two SN curves. This model was also compared to the specialized literature results, which use a conventional structure of ANN. The results consist in analyze and compare some characteristics like generalization capacity, robustness and the Goodman Diagrams, developed by the networks.

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2017-02-13T20:20:42Z No. of bitstreams: 1 RodrigoMoreiraAraujo_DISSERT.pdf: 4010692 bytes, checksum: 14265a10e5cf460156263b3eb9ab5525 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2017-02-16T19:42:17Z (GMT) No. of bitstreams: 1 RodrigoMoreiraAraujo_DISSERT.pdf: 4010692 bytes, checksum: 14265a10e5cf460156263b3eb9ab5525 (MD5) / Made available in DSpace on 2017-02-16T19:42:17Z (GMT). No. of bitstreams: 1 RodrigoMoreiraAraujo_DISSERT.pdf: 4010692 bytes, checksum: 14265a10e5cf460156263b3eb9ab5525 (MD5) Previous issue date: 2016-08-12 / Esta disserta??o apresenta um simulador semi-anal?tico de fluxo em reservat?rios homog?neos fechados atrav?s da aplica??o do m?todo de elementos de contorno (Boundary Element Method - BEM) utilizando a solu??o da fonte pontual em reservat?rio infinito. Este m?todo ? conhecido por prover vantagens valiosas sobre outros m?todos de discretiza??o de dom?nios, como a redu??o no esfor?o de discretiza??o quando comparado ao m?todo de elementos finitos. A implementa??o foi feita na linguagem de programa??o Python associada a bibliotecas amplamente testadas e utilizadas em aplica??es cient?ficas. Os resultados foram validados atrav?s de um simulador semi-anal?tico de funcionamento comprovado e demonstraram-se vi?veis para todos os cen?rios estudados. / Solving the problem of fluid flow inside closed reservoirs holds great importance for the oil industry as it allows field managers to evaluate oil producing fields and supplies data to infer production and income. One of the most common ways to solve this problem is by using the Images Method, which models closed barriers as image wells, but requires excessive processing power as it depends on the convergence of sums of infinite series. As an alternative to the Images Method, this work presents a semi-analytical simulator for monophasic and laminar fluid flow on closed, homogeneous and isotropic reservoirs based on the Boundary Element Method (BEM) associated with the Green?s function for a point source in an infinite reservoir as the fundamental solution. This method has known advantages over other numerical methods including, mainly, the reduction on discretization efforts. This work applies the Python programming language associated to scientific libraries, thoroughly tested and applied on this area. The simulator was tested on 5 different scenarios (well on infinite reservoir, well on small and large reservoir, and well decentralized on 1 and 2 axis) and was validated through another semi-analytical simulator whose results were already thoroughly tested. On all scenarios, the simulator achieved correlation values of more than 95%.

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2017-07-03T13:44:37Z No. of bitstreams: 1 JoaoCardimFerreiraLima_DISSERT.pdf: 3232481 bytes, checksum: 490799aba9f0195c8b9f343453e06b20 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2017-07-07T12:58:49Z (GMT) No. of bitstreams: 1 JoaoCardimFerreiraLima_DISSERT.pdf: 3232481 bytes, checksum: 490799aba9f0195c8b9f343453e06b20 (MD5) / Made available in DSpace on 2017-07-07T12:58:49Z (GMT). No. of bitstreams: 1 JoaoCardimFerreiraLima_DISSERT.pdf: 3232481 bytes, checksum: 490799aba9f0195c8b9f343453e06b20 (MD5) Previous issue date: 2017-02-10 / A economia mundial utiliza o seu potencial econ?mico e inovador para criar e manter a vantagem competitiva diante dos concorrentes globais. As startups surgiram como empresas de alta capacidade de gera??o de inova??es e elevada adaptabilidade, moldando-se de acordo com as necessidades e exig?ncias do mercado. A orienta??o para o mercado e para a aprendizagem organizacional, caracterizados pela informa??o de mercado e pela postura mente aberta, respectivamente, s?o os precursores da inova??o radical. Diante deste cen?rio, o intuito dessa pesquisa ? validar um modelo estrutural que demonstre o inter-relacionamento dos fatores chaves da informa??o de mercado, da mente aberta e da inova??o radical nas startups brasileiras. Quanto aos aspectos metodol?gicos, esse estudo se caracteriza como quantitativo, de objetivo formalizado com m?todo de interroga??o e escopo de estudo estat?stico. A coleta de dados teve abrang?ncia nacional (Brasil) e foi realizada atrav?s de um question?rio eletr?nico (survey) aplicado em startups cadastradas na base de dados da Associa??o Brasileira de Startups - ABStartups. A an?lise dos dados foi feita atrav?s da utiliza??o de Modelagem de Equa??es Estruturais, em raz?o de esse m?todo mostrar-se adequado para a an?lise global de um modelo. Como resultados ap?s o ajuste do modelo os valores de curtose, assimetria, AVE, Alpha de Cronbach, confiabilidade composta, cargas cruzadas, crit?rio de Fornell e Larcker, VIF, cross-validated redundancy e cross-validated communality, coeficiente de Pearson (R?) e o valor p tiveram valores aceit?veis na an?lise atrav?s do software SmartPLS?, sendo assim as hip?teses H1, H2 e H3 foram aceitas. / The world?s economy uses its economic and innovative potential to create and maintain competitive advantage against global competitors. Startups appear as companies with high capacity of innovations generation and high adaptability, shaping according to the needs and requirements of the market.Market orientation and organizational learning, characterized by market information and open-mindedness, respectively, are the forerunners of radical innovation. Given this scenario, the purpose of this research is to validate a structural model that demonstrates the interrelationship between the key factors of Market Information, Open mindedness and Radical Innovation in Brazilian startups. Regarding the methodological aspects, this research is characterized as quantitative, with formalized objective, interrogation method and scope of statistical study. The data collection was national (Brazil), was performed through an electronic questionnaire (research) applied in startups registered in the database of the Brazilian Association of Startups - ABStartups. The analysis of the data was performed through the use of Structural Equations Modeling, because this method is suitable for the global analysis of a model. As results after the adjustment of the model, the values of kurtosis, asymmetry, AVE, Cronbach's Alpha, composite reliability, cross loads, Fornell and Larcker criteria, VIF, crossvalidated redundancy and cross-validated communality, Pearson coefficient (R?) and the p value had acceptable values in the analysis through the software SmartPLS?, thus the hypotheses H1, H2 and H3 were accepted.

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2017-08-01T13:04:56Z No. of bitstreams: 1 AnnaCamilaLimaESilva_DISSERT.pdf: 2842192 bytes, checksum: c726f5156d600288d4b5d423f110a27b (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2017-08-03T21:11:47Z (GMT) No. of bitstreams: 1 AnnaCamilaLimaESilva_DISSERT.pdf: 2842192 bytes, checksum: c726f5156d600288d4b5d423f110a27b (MD5) / Made available in DSpace on 2017-08-03T21:11:47Z (GMT). No. of bitstreams: 1 AnnaCamilaLimaESilva_DISSERT.pdf: 2842192 bytes, checksum: c726f5156d600288d4b5d423f110a27b (MD5) Previous issue date: 2017-05-29 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (CAPES) / A presente pesquisa tem como objetivo geral identificar a rela??o entre as vari?veis que favorecem o desempenho organizacional das startups brasileiras. Isso se torna vi?vel devido ? din?mica no ambiente externo, o surgimento de novas tecnologias ou transforma??es nas prefer?ncias dos consumidores, que exigem das organiza??es agilidade interna para antever esses cen?rios e responder a eles em velocidade compat?vel. Para atingir o objetivo proposto, a pesquisa foi desenvolvida com as startups associadas ? Associa??o Brasileira de Startups (ABStartup). A coleta de dados foi realizada por meio do instrumento survey, composto por 17 quest?es, de maneira auto administr?vel e online, com a participa??o de 166 startups, de diversas regi?es do Brasil. Evidenciou-se que as startups brasileiras est?o, em sua grande maioria, localizadas em S?o Paulo, atuando em Pesquisa e Desenvolvimento e iniciaram suas atividades em 2015. Os resultados dos indicadores apresentaram que as startups possuem alto n?vel de orienta??o para o mercado, de inovar em produtos e de desempenho organizacional. Observou-se que os empres?rios, majoritariamente, concordam moderadamente com as proposi??es, e aumentaram menos de 10% em rela??o ao desempenho organizacional. Quanto ? an?lise com a Modelagem de Equa??es Estruturais, identificou-se que a orienta??o para o mercado, apesar de importante para as startups, n?o influencia no desempenho organizacional. Por outro lado, essa orienta??o tem relev?ncia para a capacidade inovativa de produto. E o desempenho organizacional ? influenciado pela capacidade inovativa de produto. Diante disso, o estudo contribuiu no sentido de validar um modelo com as startups brasileiras, o que auxiliar? as empresas j? existentes e as futuras, para a redu??o da mortalidade precoce dessas startups. / The present research seeks, as it main objective, to identify the relationship between the variables that favor the organizational performance of Brazilian startups. This becomes critical given the dynamics in the external environment of organizations, the emergence of new technologies and the transformations in consumer preferences, which all combined, requires the organizations to have internal agility to foresee these scenarios and respond to them at compatible speed. To achieve the proposed goal, the research was developed with startups associated with the Brazilian Association of Startups (ABStartup). The data collection was done through a survey, composed of 17 questions, in a self-managing and online way, with the participation of 166 startups from different regions of Brazil. It was evidenced that the Brazilian startups are, in the great majority, located in S?o Paulo, acting in Research and Development and began their activities in 2015. The results of the indicators showed that startups have a high level of market orientation, product innovation and organizational performance. The majority of entrepreneurs surveyed agreed moderately with the propositions, and increased their organizational performance by less than 10%. Regarding the analysis with the MEE, it was identified that the orientation to the market, although important for the startups, does not influence the organizational performance, but does have some effect in the product innovation capability. On the other hand, this orientation has relevance to the innovative capability of the product. And such a capability ultimately influences organizational performance. Therefore, the study contributed to the validation of a model with Brazilian startups, which will help existing and future companies to reduce the early mortality of these enterprises.