Made available in DSpace on 2016-04-04T18:36:39Z (GMT). No. of bitstreams: 1 Gardenia Garcia Benossi Moreira.pdf: 591664 bytes, checksum: 58262fb7b5c6ea4e6032aca073e36cdf (MD5) Previous issue date: 2009-02-18 / The organizations have been pressioned to adapt to the economy, so fast, but is necessary to do the better in their job. This paper wanted, in this context, to verify the possibility of the relation between Knowledge Management, that look at the business intellectual capital and promoting it throughout the knowledge sharing and the personnel Training and Development area, that works with the employee learning capability. Other objectives were: to analyze the Knowledge Management and Training and Development concepts available in the literature, doing a relation with the available concepts in organizations sites that put into practice these processes in their environment, verifying if existing or not adjustment, trying to detect possibles contributions of the Information Science. The method was inductive with bibliographic and qualitative characteristics. To do the verifying about the possible relation between Knowledge Management and Training and Development processes, two organizations were chosen, because there was available in their sites some informations about these ones. The bibliography that has been chosen was the based to the analysis. After this, has been identified that the organization A do the Knowledge Management and Training and Development processes, like the directing tendencies to this area. The organization B didn t know clearly about the Knowledge Management, but apply overall the Training and Development processes, like the organization A following the directing tendencies. This paper also considered so that the Information Science has the information in it base, that this one contribute satisfactorily to the Knowledge Management and Training and Development processes therefore the information is the knowledge origin, and has been the base to this paper. Concluding, ratify that Knowledge Management and Training and Development processes are convergent whereas the business increasing and development presume, nowadays, the organization capacity to generate new knowledge, sharing it between the employees and join it through learning, to the proceedings, services and products. / As organiza??es est?o cada vez mais pressionadas a responderem ?s demandas do mercado e ?s mudan?as sofridas com rapidez, por?m buscando as melhores pr?ticas em seus processos. Esta pesquisa procurou, neste contexto, verificar a possibilidade de inter-rela??o entre a ?rea de Gest?o do Conhecimento, que visa o capital intelectual da empresa e seu fomento atrav?s do compartilhamento de conhecimento com a ?rea de Treinamento e Desenvolvimento de pessoas, que lida com a capacidade de aprendizado dos funcion?rios. Outros objetivos foram: analisar os conceitos de Gest?o do Conhecimento e de Treinamento e Desenvolvimento dispon?veis na literatura, relacion?-los ?s informa??es dispon?veis em sites de empresas que demonstraram aplicar tais processos em seu ambiente, verificando as adequa??es ou as inadequa??es existentes, e, identificar as contribui??es da Ci?ncia da Informa??o para estes processos. O m?todo que norteou esta pesquisa foi o indutivo, possuindo caracter?stica qualitativa e bibliogr?fica. Para tanto, foram escolhidas duas empresas que disponibilizam em seus sites informa??es sobre os dois processos. A bibliografia selecionada sobre tais processos embasou an?lise dos sites. Ap?s a an?lise, identificou-se que a empresa A pratica a Gest?o do Conhecimento e o processo de Treinamento e Desenvolvimento seguindo as tend?ncias norteadoras desta ?rea. A empresa B n?o tem uma pr?tica clara de Gest?o do Conhecimento, por?m o processo de Treinamento e Desenvolvimento, assim como na empresa anterior, segue as tend?ncias orientadoras da ?rea. Considerou-se tamb?m que a Ci?ncia da Informa??o, tendo a informa??o como seu insumo b?sico, contribui satisfatoriamente para estes processos, j? que lida com a ess?ncia que originar? a forma??o do conhecimento, e que foi a base de estudo nesta pesquisa. Concluiu-se que h? converg?ncia entre os processos de Treinamento e Desenvolvimento e Gest?o do Conhecimento, visto que o crescimento e desenvolvimento corporativo pressup?em, em dias atuais, a capacidade da empresa em criar conhecimento novo, compartilhando-o entre os funcion?rios e agregando-o, de forma concreta atrav?s do aprendizado, a processos, servi?os e produtos.

Made available in DSpace on 2016-04-04T18:36:40Z (GMT). No. of bitstreams: 1 Jonatan Moreira.pdf: 1032578 bytes, checksum: 66104343eec9e8e29817f1aea6ba8e07 (MD5) Previous issue date: 2008-08-08 / The new challenge for education in general and in particular for the Distance Education, is to allow the emancipation of people in society, giving them the ability to seek the information they need to supplement, continuously, their education. Within this reality, the use of digital information, supported by the Information and Communication Technologies currently available, increases the range of options available to the Distance Education, which promotes additional ways of access, more flexibility and greater agility to the individuals in their uninterrupted process to search for desired information. Set within this context, the main goal of this dissertation is to study different ways to treat and manage the digital information used by Information Science and applied to the Distance Education. Therefore, this paper intends to establish possible links between methods and techniques developed and / or used by Information Science professionals and Distance Education sections, in way to improve the informational environment that supports the Distance Education by the informational paradigm. / O novo desafio para a educacao em geral, e, em especifico para a Educacao a Distancia, e permitir a emancipacao dos individuos na sociedade, de modo a conferir-lhes a capacidade de buscar as informacoes de que necessitam para complementar, continuamente, suas formacoes. Dentro desta realidade, a utilizacao da informacao digital, suportada pelas Tecnologias da Informacao e Comunicacao atualmente disponiveis, multiplica a gama de opcoes disponibilizadas a Educacao a Distancia, o que promove mais formas de acesso, mais flexibilidade e maior agilidade para o individuo em seu ininterrupto processo de busca da informacao desejada. Inserida dentro deste contexto, esta dissertacao tem como proposito o estudo das diferentes formas de tratar e gerir a informacao em suporte digital, empregados pela Ciencia da Informacao, que possam ser aplicadas a Educacao a Distancia. Assim, este trabalho busca estabelecer as possiveis relacoes existentes entre metodos e tecnicas desenvolvidas e/ou empregadas por profissionais da area de Ciencia da Informacao e os modulos que compoem um modelo de Educacao a Distancia, objetivando auxiliar e aprimorar o ambiente informacional que da suporte a Educacao a Distancia segundo o paradigma informacional.

Made available in DSpace on 2016-04-04T18:36:40Z (GMT). No. of bitstreams: 1 Renatha James Diogenes Pinheiro.pdf: 1801099 bytes, checksum: a0bfee7ab7fdf79d8b0e46fe995f7260 (MD5) Previous issue date: 2009-02-17 / Pontif?cia Universidade Cat?lica de Campinas / The study discusses the question of the concept information applied in TransInforma??o journal online (TRANS) e Perspectivas em Ci?ncia da Informa??o journal online (PCI). The general objective of this research is to identify the aspects of the term information, in articles of the TRANS and PCI, from 1996 to 2006, with the purpose to supply scientific indicators to a better understanding of the object of study of the Information Science. The specific objectives are: to chart, in articles selected, the concepts of the term information; to point the authors most quoted when the perspective is to define this term; to mark the statistic aspects, frequency of the concept attributed to term in analysis; and to check its concept changes. This work presents a theoric board of the references in Information Science, focusing the historical process and the characteristics. It discusses the problems that rule the indefinition of the term information. It reviews the specific literature about the cycle of the information, giving emphasis to the scientific journals and its functions. It uses the bibliometric method to production of the results. The research s main results are: big presence of the word information, the opposite of what happens with the discussion of the concept information; absence of a theoric board of the references to subsidize the studies interested in this subject; Barreto (1994, 1996, 1999) and Buckland (1991) are the authors most quoted; and the presence of the physical paradigm, cognitive paradigm and paradigm social in concepts of information checked. In short, the elements common to these concepts are related. / O estudo possui como panorama a quest?o da an?lise do conceito de informa??o aplicado nos artigos dos peri?dicos: TransInforma??o (TRANS) e Perspectivas em Ci?ncia da Informa??o (PCI). O objetivo geral da pesquisa ? identificar os tra?os conceituais desse termo, nos artigos da TRANS e PCI publicados de 1996 a 2006, visando diagnosticar os autores mais impactantes na ?rea de Ci?ncia da Informa??o, no tocante a tem?tica em an?lise, e apontar vis?es paradigm?ticas relacionadas a esse conceito. Objetiva-se especificamente: mapear, nos artigos selecionados, o conceito de informa??o; destacar os autores mais citados quando a perspectiva ? definir esse termo; apontar os aspectos estat?sticos, frequ?ncia do conceito atribu?do ao termo em an?lise; e assinalar suas altera??es conceituais. O trabalho apresenta um quadro te?rico de refer?ncias da Ci?ncia da Informa??o, enfocando seu processo hist?rico e suas caracter?sticas. Discute a problem?tica que rege a indefini??o de seu objeto de estudo. Revisa a literatura espec?fica sobre o ciclo da informa??o, enfatizando os peri?dicos cient?ficos e suas fun??es. Utiliza o m?todo documental e o bibliom?trico para obten??o dos resultados. A partir dos resultados, infere-se que h? uma grande ocorr?ncia da palavra informa??o, o contr?rio do que acontece com a discuss?o deste termo enquanto conceito. Nota-se: a aus?ncia de um quadro de refer?ncia para subsidiar os estudos interessados nesse assunto; que Barreto (1994, 1996, 1999) e Buckland (1991) despontam como os autores mais citados; e a presen?a dos paradigmas f?sico, cognitivo e social nos conceitos de informa??o verificados. Por fim, relacionam-se os elementos comuns a esses conceitos.

Submitted by Jorge Silva (jorgelmsilva@ufrrj.br) on 2017-10-17T17:35:44Z No. of bitstreams: 1 2016 - Ernane Tarcisio Martins Gomes.pdf: 1573845 bytes, checksum: 78069c6459bd2b6aba951ba371ae74fd (MD5) / Made available in DSpace on 2017-10-17T17:35:44Z (GMT). No. of bitstreams: 1 2016 - Ernane Tarcisio Martins Gomes.pdf: 1573845 bytes, checksum: 78069c6459bd2b6aba951ba371ae74fd (MD5) Previous issue date: 2016-08-17 / CNPq / Soil organic matter can be derived from the decomposition of animal or vegetable. Most commercial crops show photosynthetic mechanisms C3 and C4, which set different carbon isotopes C12 or C13. Through isotopic analysis can determine the origin and prevalence of type of carbon that make up the soil organic matter (SOM) in a given area. Depending on the chemical fractionation MOS can also be divided into fractions FAF, FAH and FHU, these fractions have specific characteristics depending on their origin training and ambient conditions. The objective of this study was to evaluate the influence of plant origin C3 or C4 in the formation of the chemical and molecular structure of humic substances extracted from four areas with different vegetation cover, but submitted to agroecological management. To investigate this influence were extracted humic substances (HS) of these soils, being held chemical fractionation and chemical characterization by NMR analysis, FTIR, quantification and ?13C e ?15N isotopes in the AH fraction, 13 C-CP / MAS NMR and elemental determination. From the results obtained from these analyzes it was concluded that the plant does not influence qualitative differences, but in quantitative between the chemical components of humic substances (HS), the type of photosynthetic cycle does not seem to be a determining factor in the formation and incorporation of the types of structures in HA, but rather the quantities of these structures and their humic organizational distribution. The chemometric theoretical analyzes indicate that the development and preservation of humic these soils may be possible in intensive management systems such as rotation upon application of exogenous sources of stabilized SH, as well as favoring the humidification process in less managed systems as pasture and SAF. In this study it was demonstrated by characterization and chemometrics applied to AH of an agro-ecological system, the current state of MOS in terms of stability and structural enrichment and being proposed possible avenues for recovery and preservation of SH in mineral soils that may contribute to the increase in conditions fertility and thus agricultural production. / A mat?ria org?nica do solo pode ser oriunda da decomposi??o de animais ou vegetais. A maioria das culturas comerciais apresentam mecanismos fotossint?ticos C3 ou C4, que fixam diferentes is?topos de carbono C12 ou C13. Atrav?s de an?lises isot?picas ? poss?vel determinar a origem e predomin?ncia do tipo de carbono que comp?em a mat?ria org?nica do solo (MOS) em determinada ?rea. Em fun??o do fracionamento qu?mico a MOS ainda pode ser dividida nas fra??es FAF, FAH e FHU, estas fra??es apresentam caracter?sticas especificas em fun??o da sua origem de forma??o e condi??es ambientes. O objetivo deste trabalho foi avaliar a influ?ncia da origem vegetal C3 ou C4 na forma??o da estrutura qu?mica e molecular das substancias h?micas extra?das de quatro ?reas com cobertura diferentes vegetais, por?m submetidas ao manejo agroecol?gico. Para averiguar esta influ?ncia foram extra?das as substancias h?micas (SH) destes solos, sendo realizado o fracionamento qu?mico e caracteriza??o qu?mica atrav?s de an?lises de RMN, FTIR, quantifica??o de is?topos ?13C e?15N na fra??o de AH, 13C-CP/MAS NMR e a determina??o elementar. A partir dos resultados obtidos a partir dessas an?lises foi poss?vel concluir que a origem vegetal n?o influencia em diferen?as qualitativas e sim em quantitativas entre os componentes qu?micos das substancias h?micas (SH), o tipo de ciclo fotossint?tico n?o parece ser um fator determinante na forma??o e incorpora??o dos tipos de estruturas nos AH, mas sim nas quantidades destas estruturas e na sua distribui??o organizacional h?mica. As an?lises te?ricas quimiom?tricas indicam que a incorpora??o e preserva??o de MO humificada nestes solos pode ser poss?vel em sistemas de manejo intensivo como a rota??o, mediante aplica??es de fontes ex?genas de SH estabilizada, assim como tamb?m o favorecimento dos processos de humifica??o em sistemas menos manejados como pastagem e SAF. Neste estudo foi comprovado mediante carateriza??o e quimiometria aplicadas aos AH de um sistema agroecol?gico, o estado atual da MOS em termos de estabilidade e enriquecimento estrutural e sendo propostas poss?veis vias para a recupera??o e preserva??o das SH em solos minerais que possam contribuir ao aumento das condi??es de fertilidade e consequentemente da produ??o agr?cola.

Submitted by Jorge Silva (jorgelmsilva@ufrrj.br) on 2018-01-24T17:49:23Z No. of bitstreams: 1 2017 - Leandro Martins Ferreira.pdf: 2738374 bytes, checksum: a6ccde64b30f6cd52122b9030ab6c92e (MD5) / Made available in DSpace on 2018-01-24T17:49:25Z (GMT). No. of bitstreams: 1 2017 - Leandro Martins Ferreira.pdf: 2738374 bytes, checksum: a6ccde64b30f6cd52122b9030ab6c92e (MD5) Previous issue date: 2017-02-22 / CAPES / Faperj / CNPq / Among the abiotic stress, drought is a major environmental stress seriously limiting plant growth and crop productivity. Rice is one of the most important staple food crops in the world and requires a larger quantity of water to produce, once it is a crop extremely sensitive to drought stress. For this reason, to obtain rice plants that cope with drought stress without major reduction in productivity is the challenge for breeding programs nowadays. This work aimed: (i) identify upland rice varieties with contrasting drought tolerance through the evaluation of morphological and physiological traits, (ii) analyse root parameters which could explain the differences between tolerant and sensitive varieties to the drought stress and, (iii) identify new biotechnological targets related with the tolerance through transcript profile analysis in the contrasting varieties. Six experiments were performed, two in greenhouse and four in growth chamber conditions. The experimental design adopted was completely randomized. The first experiment started with ten rice varieties submitted to control and stress conditions during the reproductive stage. The contrasting varieties were selected based on morphological and physiological traits. Experiments from II to IV aimed to correlate the tolerance to the drought stress with the root development and morphology. Experiment V aimed to evaluate the regulation of genes related to the drought tolerance and the experiment VI aimed to analyse the differential expression of genes through the RNAseq analysis in rice roots. Data obtained from the productivity components, tolerance index and multivariate analysis through the evaluation of morphological and physiological traits allowed to identify Catet?o and Piau? variety as the most tolerant and Quebra Cacho and Mira as the most sensitive. Drought tolerance was correlated with a lower root angle and increase in the root density and emission of lateral roots by Catet?o variety during drought stress. Moreover, Catet?o variety has showed higher expression levels and early induction of genes and transcription factors related with drought tolerance. The RNAseq analysis allowed to identify several potential genes which can be used in future breeding programs aimimg the improvement of drought tolerance in rice. / Dentre os estresses abi?ticos que podem limitar o crescimento das culturas agr?colas, a seca ? considerada um dos principais, sendo capaz de reduzir consideravelmente a produ??o global de alimentos. O arroz ? uma das mais importantes culturas agr?colas do mundo e sua produ??o demanda grande quantidade de ?gua, pois ? uma esp?cie extremamente sens?vel ao d?ficit h?drico. Portanto, a obten??o de plantas de arroz que lidam com o estresse h?drico, sem redu??o significativa de produtividade ? um desafio para os programas de melhoramento atuais. Este trabalho teve como objetivos: (i) identificar variedades de arroz de sequeiro contrastantes quanto ? toler?ncia ao estresse h?drico por meio da avalia??o de caracter?sticas morfol?gicas e fisiol?gicas, (ii) analisar par?metros radiculares que possam explicar a diferen?a entre variedades tolerantes e sens?veis ao estresse h?drico e, (iii) identificar novos alvos biotecnol?gicos envolvidos com essa toler?ncia por meio da an?lise do perfil de transcritos nas variedades de arroz contrastantes. Foram realizados seis experimentos, sendo dois em casa de vegeta??o e quatro em c?mara de crescimento. O delineamento experimental utilizado foi o inteiramente casualizado. O primeiro experimento iniciou com dez variedades de arroz submetidas a condi??o controle e estresse h?drico durante o per?odo reprodutivo. As variedades contrastantes foram selecionadas com base em caracter?sticas morfol?gicas e fisiol?gicas analisadas. Os experimentos II a IV foram realizados a fim de correlacionar a toler?ncia ao estresse com o desenvolvimento e morfologia do sistema radicular. O experimento V foi realizado para avaliar a regula??o de genes relacionados a toler?ncia ao estresse h?drico e o experimento VI teve como objetivo analisar a express?o diferencial de genes por meio da t?cnica de RNA-seq em ra?zes de arroz. Os dados obtidos dos componentes de produtividade, ?ndices de toler?ncia ao estresse e an?lise multivariada das caracter?sticas morfol?gicas e fisiol?gicas permitiram identificar as variedades Catet?o e Piau? como as mais tolerantes ao estresse h?drico, e Quebra Cacho e Mira como as mais sens?veis. Foi observado que a toler?ncia ao estresse h?drico est? correlacionada com o menor ?ngulo radicular, aumento da densidade e emiss?o de ra?zes laterais em condi??es de d?ficit h?drico na variedade Catet?o. Al?m disso, essa variedade mostra indu??o r?pida e elevados n?veis de express?o de genes e fatores de transcri??o relacionados ? toler?ncia ao estresse h?drico em arroz. Por meio do sequenciamento do RNA foi poss?vel identificar diversos genes com potencial para serem utilizados em programas de melhoramento visando o aumento da toler?ncia ao estresse h?drico em arroz.

Submitted by Celso Magalhaes (celsomagalhaes@ufrrj.br) on 2018-03-19T14:12:28Z No. of bitstreams: 1 2015 - Wagner Fernandes Delgado.pdf: 1183957 bytes, checksum: b3f1c616325c77496cfc2cea0479e480 (MD5) / Made available in DSpace on 2018-03-19T14:12:29Z (GMT). No. of bitstreams: 1 2015 - Wagner Fernandes Delgado.pdf: 1183957 bytes, checksum: b3f1c616325c77496cfc2cea0479e480 (MD5) Previous issue date: 2015-11-25 / This master thesis in education entitled: "the professional education, new perspectives facing the changes of legislation-a case study of the students of the technical course in surveying the Technical College of UFRRJ" exposes the results of a survey that aims to clarify the reflections of new public and institutional policies occasioned by changes in Professional Technical Education of Middle Level, having as a laboratory to study the school linked to the Federal Rural University of Rio de Janeiro (UFRRJ), the Technical College of UFRRJ (CTUR). From the publication of law n?. 9,394/1996-Law of national education Bases and Guidelines (LDB), and Opinion n?. 04/99, who in his Art. 7?, item I and II, comes to modular courses, regulated by Decree n? 5.154/2004, the Technical College of UFRRJ reshaped its curriculum and offer modular courses and their subsequent array Technical course in Surveying, until then, it was offered at the Institute of Technology, in the form of an agreement with the FAPUR (Foundation for Support of Scientific and Technological Research of UFRRJ). It is a qualitative research, in the form of case study, where it is contested, too, the documentary analysis, field and that the problems addressed, historicist especially the cultural and socio-political aspects involved in the process based on the theoretical thinking, which adopt the dialectical epistemology. How to perform data collection support application of semi-structured questionnaires and interviews with teachers, students and administrators. The present study focuses on the technical course in Surveying, aiming at the identification of the profile of students seeking technical training. It has been found through interviews and questionnaires with the Faculty and students of the technical course in Surveying the changes were beneficial in their range, but there are problems that need to be resolved, such as the high dropout rates in the first module, the educational deficit from the poor quality of the formation of the secondary school, causing a low yield in the disciplines of technical knowledge / Esta disserta??o de mestrado em educa??o intitulada: ?A Educa??o Profissional, novas perspectivas frente ?s mudan?as da legisla??o - estudo de caso dos alunos do curso t?cnico em agrimensura do Col?gio T?cnico da UFRRJ? exp?e os resultados de uma pesquisa que tem como objetivo explicitar os reflexos das novas pol?ticas p?blicas e institucionais ocasionadas pelas mudan?as na Educa??o Profissional T?cnica de N?vel M?dio, tendo como laborat?rio de estudo a escola vinculada ? Universidade Federal Rural do Rio de Janeiro (UFRRJ), o Col?gio T?cnico da UFRRJ (CTUR). A partir da publica??o da Lei n? 9.394/1996 - Lei de Diretrizes e Bases da Educa??o Nacional - (LDB), e do Parecer n? 04/99, que em seu Art. 7?, Inciso I e II, trata de cursos modulares, regulamentados atrav?s do Decreto n? 5.154/2004, o Col?gio T?cnico da UFRRJ reformulou a sua grade curricular, e passou a ofertar cursos modulares subsequentes, e ter em sua matriz o curso de T?cnico em Agrimensura, que at? ent?o, era oferecido no Instituto de Tecnologia, na forma de conv?nio com a FAPUR (Funda??o de Apoio ? Pesquisa Cient?fica e Tecnol?gica da UFRRJ). Trata-se de uma investiga??o qualitativa, na forma de estudo de caso, onde se recorre, tamb?m, ? an?lise documental, bibliogr?fica e de campo que historicista a problem?tica abordada considerando, sobretudo os aspectos pol?ticos, culturais e socioecon?micos envolvidos no processo embasado no pensamento de te?ricos, que adotam a epistemologia dial?tica. Como suporte ? coleta de dados realizo aplica??o de question?rios semiestruturados e entrevista com professores, alunos e gestores. O presente estudo focaliza o Curso T?cnico em Agrimensura, objetivando a identifica??o do perfil dos alunos que procuram a forma??o t?cnica. Foi constatado atrav?s de entrevistas e aplica??o de question?rio com os docentes e alunos do Curso T?cnico em Agrimensura que as mudan?as foram ben?ficas em sua amplitude, mas existem problemas que precisam ser solucionados, como as altas taxas de evas?o no primeiro m?dulo, o d?ficit educacional proveniente da m? qualidade da forma??o da escola secundaria, causando um baixo rendimento nas disciplinas de conhecimentos t?cnicos mais apurados

Submitted by Jorge Silva (jorgelmsilva@ufrrj.br) on 2018-08-17T19:18:50Z No. of bitstreams: 1 2017 - Luiz Fernando de Sousa Antunes.pdf: 3490233 bytes, checksum: 92443afbff5584305c9a4e8b2710566c (MD5) / Made available in DSpace on 2018-08-17T19:18:50Z (GMT). No. of bitstreams: 1 2017 - Luiz Fernando de Sousa Antunes.pdf: 3490233 bytes, checksum: 92443afbff5584305c9a4e8b2710566c (MD5) Previous issue date: 2017-02-15 / CNPq / The millicompost is a 100% substrate consisting of organic compound generated by the activity of diplopods of the species Trigoniulus corallinus, popularly known as millipedes, that are big consumers of litter and guarantee the cycling of nutrients to the soil. The generation of lignocellulosic residues is increasing and there is not always the correct destination of these residues. The millicomposting is an environmentally friendly alternative that allows the production of organic compounds from different agricultural residues for later use as a substrate in the production of vegetables. In this sense, this work was divided in three stages, whose objectives were: to evaluate the consumption of agricultural and urban residues by the Trigoniulus corallinus (Chapter I); to evaluate the efficiency of the millicomposts produced from agricultural and urban residues, at different composting times by the activity of the Trigoniulus corallinus diplopods, as substrates for the production of Vera lettuce seedlings, in addition to evaluating the pH, electrical conductivity and total macronutrient contents of the gongocomposts after storage for three months (Chapter II) and to evaluate the agronomic performance of lettuce in an organic production system, according to the quality of the seedlings of cultivar Vera lettuce grown by different millicomposts (Chapter III) In Chapter I, the results confirm that T. corallinus diplopods are able to ingest nutrient poor residues, but clearly exhibit their food preferences for residues containing higher nutrient contents. In Chapter II, of the three millicomposts evaluated, only the substrates T2-millicompost 125 days and T3- millicompost 180 days were efficient in lettuce production, however, the T3 substrate was responsible for the production of plants with greater accumulation of biomass, height and stability of the clod, being similar to the substrate T4-SIPA, considered as control. The storage for a period of three months allowed changes in pH, electrical conductivity and macronutrient contents, and only the electrical conductivity values were higher than allowed by Brazilian legislation. In the evaluation of the lettuce seedlings, the substrate T4-SIPA followed by the substrate T2-millicompost 125 days, were those that provided seedlings with greater development. In Chapter III, the T1-90 days treatment was lower in all evaluated parameters, when compared to the other treatments, but its estimated productivity meets the expectations for the state of Rio de Janeiro. Although there were no statistical differences, the estimated productivity was 10.38 and 11.82% lower for the treatment T2-125 days in relation to treatments T3-180 days and T4-SIPA, respectively, proving that the quality of the seedlings transplanted on the field is able to directly influence productivity in the lettuce crop. / O gongocomposto ? um substrato 100% constitu?do por composto org?nico gerado pela atividade de dipl?podes da esp?cie Trigoniulus corallinus, popularmente conhecidos como gongolos, que s?o grandes consumidores de serrapilheira e garantem a ciclagem de nutrientes para o solo. A gera??o de res?duos lignocelul?sicos ? crescente e nem sempre h? a destina??o correta destes res?duos. A gongocompostagem ? uma alternativa amiga do meio ambiente, que viabiliza a produ??o de compostos org?nicos a partir de diferentes res?duos agr?colas para posterior uso como substrato na produ??o de hortali?as. Nesse sentido, este trabalho se dividiu em tr?s etapas, cujos objetivos foram: avaliar o consumo de res?duos agr?colas e urbanos pelo dipl?pode Trigoniulus corallinus (Cap?tulo I); avaliar a efici?ncia dos gongocompostos produzidos a partir de res?duos agr?colas e urbanos, em diferentes tempos de compostagem pela atividade dos dipl?podes Trigoniulus corallinus, como substratos para a produ??o de mudas de alface cultivar Vera, al?m de avaliar os valores de pH, de condutividade el?trica e dos teores de macronutrientes totais dos gongocompostos ap?s o armazenamento pelo per?odo de tr?s meses (Cap?tulo II) e avaliar o desempenho agron?mico da alface em sistema de produ??o org?nica, de acordo com a qualidade das mudas de alface crespa cultivar Vera produzidas por diferentes gongocompostos (Cap?tulo III) No Cap?tulo I, os resultados confirmam que os dipl?podes T. corallinus s?o capazes de ingerir res?duos pobres em nutrientes, por?m exibem nitidamente as suas prefer?ncias alimentares por res?duos que contenham maiores teores nutricionais. No Cap?tulo II, dos tr?s gongocompostos avaliados, apenas os substratos T2-gongocomposto 125 dias e T3-gongocomposto 180 dias se mostraram eficientes na produ??o de alface, contudo, o substrato T3 foi respons?vel pela produ??o de plantas com maior ac?mulo de biomassa, altura e estabilidade de torr?o, sendo semelhantes ao substrato T4-SIPA, tido como controle. O armazenamento pelo per?odo de tr?s meses proporcionou altera??es nos valores de pH, condutividade el?trica e teores de macronutrientes, sendo que apenas os valores de condutividade el?trica ficaram acima do permitido pela legisla??o brasileira. Na avalia??o das mudas de alface, o substrato T4-SIPA seguido pelo substrato T2-gongocomposto 125 dias, foram os que proporcionaram mudas com maior desenvolvimento. No Cap?tulo III, o tratamento T1-90 dias foi inferior em todos os par?metros avaliados, quando comparado aos demais tratamentos, por?m sua produtividade estimada atende ? esperada para o estado do Rio de Janeiro. Embora n?o tenha havido diferen?as estat?sticas, a produtividade estimada foi 10,38 e 11,82% menor para o tratamento T2-125 dias em rela??o aos tratamentos T3-180 dias e T4-SIPA, respectivamente, comprovando que a qualidade da muda transplantada no campo ? capaz de influenciar diretamente na produtividade na cultura da alface.

Submitted by Celso Magalhaes (celsomagalhaes@ufrrj.br) on 2018-09-25T18:27:49Z No. of bitstreams: 1 2017 - Sarai Oliveira Silva.pdf: 2076016 bytes, checksum: 4439b4d16ef8bd453bd30cbb53b93014 (MD5) / Made available in DSpace on 2018-09-25T18:27:50Z (GMT). No. of bitstreams: 1 2017 - Sarai Oliveira Silva.pdf: 2076016 bytes, checksum: 4439b4d16ef8bd453bd30cbb53b93014 (MD5) Previous issue date: 2017-08-31 / This research analyzes answers given by students of the first grade of High School about the elaboration of tables with prototypical examples of functions in a collaborative environment in which the students worked in pairs or groups of no more than three members. The development of this research was based on the Design Experiment on which we established the Theoretical Methodological foundation that also served to establish a framework of teaching and learning of functions for this group. The starting point was the preconceived ideas about the concept of function and about operations on the set of integers, Z. The set of familiar, but unconventional tasks to introduce the theme originated from this central idea, operations in Z. These tasks and the recording of students' written responses are our instrument of data collection and analysis. That is, the students needed to explain or justify the procedures used. The analysis of the answers has revealed that many students come to High School without knowing that the term function is also used to designate a mathematical concept; that the notion of function for them becomes the idea of "making calculations" and that for some students, function is the calculation itself. Based on the considerations above, we believe that the challenge is to think how to intervene in the classroom so that the student is given the opportunity to review his notions and broaden his vision of the concept of function. As a result of this research, we present a didactic guide for teachers containing suggestions of tasks for the study of functions starting from some of the preconceived ideas / Esta pesquisa analisa as respostas dadas por estudantes da 1? s?rie do Ensino M?dio acerca da elabora??o de tabelas, com exemplos protot?picos de fun??es, em um ambiente colaborativo, em que os estudantes trabalhavam em duplas ou em grupos de no m?ximo tr?s integrantes. Para o desenvolvimento desta pesquisa nos apoiamos no Experimento de Design, sobre o qual estabelecemos um quadro de ensino e de aprendizagem de fun??es para esse grupo. O ponto de partida foram ideias preconcebidas sobre o conceito de fun??o e sobre as opera??es no conjunto dos n?meros inteiros, Z. O conjunto de tarefas familiares e n?o convencionais, elaboradas para introdu??o do tema, partiu de opera??es em Z. Estas tarefas e o registro das respostas escritas dos estudantes s?o o nosso instrumento de coleta e an?lise de dados. A an?lise das respostas nos revelou que muitos estudantes chegam ao Ensino M?dio sem conhecimento de que o termo fun??o ? tamb?m usado para designar um conceito matem?tico, que a no??o de fun??o dos estudantes est? associada ? ideia de fazer contas e que para alguns, fun??o ? a pr?pria conta. Como produto resultante desta pesquisa, apresentamos um guia did?tico para o professor, contendo sugest?es de tarefas para o estudo de fun??es, cujo ponto de partida s?o algumas das ideias preconcebidas dos estudantes sobre fun??o

Submitted by Jorge Silva (jorgelmsilva@ufrrj.br) on 2018-10-19T17:51:25Z No. of bitstreams: 1 2013 - Ellen Almeida dos Santos Ferreira.pdf: 1317610 bytes, checksum: dd687bdd4e12dc0f868a15a961aa31ed (MD5) / Made available in DSpace on 2018-10-19T17:51:25Z (GMT). No. of bitstreams: 1 2013 - Ellen Almeida dos Santos Ferreira.pdf: 1317610 bytes, checksum: dd687bdd4e12dc0f868a15a961aa31ed (MD5) Previous issue date: 2013-05-06 / Brazil is a big producer and exporter of fruits and fruit juice. The sale, in many cases, is limited to the seasonality of production and perishability of fruits. The Brazilian cherry is a tropical fruit originally from the South and Southeast regions of Brazil, with high perishability and susceptibility to physical damage during transport. Considering all the losses that the productive chain of fresh Brazilian cherry may suffer, it is evident the importance of producing the juice of this fruit. Traditionally, thermal treatment has been employed in the processing and preservation of these products; however, undesirable changes in sensory and nutritional characteristics can happen. Among the innovative technologies to reduce these undesirable changes is High Hydrostatic Pressure (APH). This method of food preservation provides additional benefits to the product allowing products closer to the fresh product. This study aimed to investigate the process of high pressure in the preservation of Brazilian cherry pulp (Eugenia uniflora L.) to assess their microbiological safety and sensory quality and nutritional nectar obtained. The study was conducted at Embrapa Food Technology (Rio de Janeiro-RJ, Brazil). The Brazilian cherry pulp was processed by high hydrostatic pressure using different pressure levels, temperatures and retention time, following a central composite design. Microbiological analyzes were performed (for Salmonella spp., Coliforms at 45? C, mesophilic aerobic, yeasts and molds), physico-chemical (pH, acidity, soluble solids, fibers), antioxidant activity and instrumental color. It was investigated nectar microbiological shelf life obtained from the pressurized pulp. Shelf life estimation through Survival Analysis was also carried out, and the nectar exceeded 35 days of storage. Further studies are recommended. The sensory characteristics of nectars obtained from the pressurized pulp, non-pressurized pulp (Control), pasteurized Control, and three commercial brands available in the market were evaluated by consumer acceptance and through the methodology check all that apply (CATA). Data were analyzed using analysis of variance, Tukey test, and Multiple Factor Analysis. The high pressure process has been effective in preserving the nectar refrigerated for up to 35 days. There was no significant negative effect on antioxidant activity and color of the samples subjected to high pressure. The results obtained in the determination of "ideal" pulp concentration and sweetness for the nectar formulation cherry were 36% and 10%, respectively. In Acceptance Test samples pressurized and commercial B had the highest scores and the terms most frequently used in the methodology check all that apply were reddish, cherry flavor, presence of particles, attractive color, acid, astringent, off-flavor, sweet, bitter, gritty look. Such terms are therefore considered the most suitable to describe the samples by consumers. / O Brasil ? um grande produtor e exportador de frutas e suco de frutas. A comercializa??o, em muitos casos, ? limitada ? sazonalidade da produ??o e ? perecibilidade das frutas. A pitanga ? uma fruta tropical origin?ria das regi?es Sul e Sudeste do Brasil, com alta perecibilidade e susceptibilidade a danos f?sicos durante o transporte. Tendo em vista todas as perdas que a cadeia produtiva da pitanga in natura pode sofrer, fica evidente a relev?ncia da obten??o do suco deste fruto. Tradicionalmente o tratamento t?rmico tem sido empregado no processamento e conserva??o destes produtos; no entanto, altera??es indesej?veis nas caracter?sticas nutricionais e sensoriais podem acontecer. Entre as tecnologias inovadoras para redu??o dessas altera??es indesej?veis, est? a Alta Press?o Hidrost?tica (APH). Este m?todo de conserva??o de alimentos oferece benef?cios adicionais ao produto permitindo a obten??o com caracter?sticas mais pr?ximas do produto in natura. Este estudo teve como objetivo investigar o processo de alta press?o na conserva??o de polpa de pitanga (Eugenia uniflora L.) de modo a avaliar a seguran?a microbiol?gica e a qualidade sensorial e nutricional do n?ctar obtido. O trabalho foi realizado na Embrapa Agroind?stria de Alimentos (Rio de Janeiro, RJ, Brasil). A polpa de pitanga foi processada por alta press?o hidrost?tica utilizando diferentes n?veis de press?o e tempo de reten??o, seguindo delineamento experimental do tipo composto central. Foram realizadas an?lises microbiol?gicas (para Salmonella spp., coliformes ? 45?C, aer?bios mes?filos e fungos filamentosos e leveduras), f?sico-qu?micas (pH, acidez, s?lidos sol?veis, fibras), atividade antioxidante, cor instrumental e avalia??o sensorial. Foi avaliada a vida ?til microbiol?gica do n?ctar obtido a partir da polpa pressurizada e sensorialmente atrav?s da an?lise de sobreviv?ncia (Survival Analysis). O n?ctar apresentou vida ?til superior a 35 dias, necessitando estudos subsequentes. As caracter?sticas sensoriais dos n?ctares obtidos a partir da polpa pressurizada, da polpa n?o pressurizada (controle), do controle pasteurizado e de tr?s marcas comerciais dispon?veis no mercado foram avaliadas atrav?s da aceita??o do consumidor e utilizando a metodologia check all that apply (CATA). Os dados foram analisados por An?lise de Vari?ncia, teste de m?dia, e An?lise M?ltipla de Fatores. O processamento da polpa por alta press?o foi eficaz na preserva??o do n?ctar refrigerado por at? 35 dias. N?o houve efeito negativo da APH na atividade antioxidante das amostras. Nas an?lises de cor todos os par?metros analisados (L*, a* e b*) diferiram (p<0,05) do controle (polpa n?o pressurizada) e as amostras pressurizadas. Os resultados obtidos na determina??o de concentra??o de polpa e do?ura ?ideais? para a formula??o do n?ctar de pitanga foram 36% e 10%, respectivamente. No Teste de Aceita??o as amostras pressurizada e comercial B obtiveram as maiores m?dias e na metodologia check all that apply, os termos utilizados mais frequentemente como descritores foram cor avermelhada, sabor de pitanga, presen?a de part?culas, cor atrativa, ?cido, adstringente, sabor estranho, gosto doce, gosto amargo, aspecto arenoso. Tais termos podem ser, portanto, considerados os mais apropriados na descri??o das amostras pelos consumidores.

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2016-08-16T20:15:31Z No. of bitstreams: 1 LeandroDeAlmeidaMelo_DISSERT.pdf: 2505718 bytes, checksum: c3f7b02d7636033873d55d92a37d5e28 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2016-08-17T22:38:52Z (GMT) No. of bitstreams: 1 LeandroDeAlmeidaMelo_DISSERT.pdf: 2505718 bytes, checksum: c3f7b02d7636033873d55d92a37d5e28 (MD5) / Made available in DSpace on 2016-08-17T22:38:52Z (GMT). No. of bitstreams: 1 LeandroDeAlmeidaMelo_DISSERT.pdf: 2505718 bytes, checksum: c3f7b02d7636033873d55d92a37d5e28 (MD5) Previous issue date: 2016-02-22 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (CAPES) / Habilidades transversais e pr?ticas de desenvolvimento em projetos foram identificadas como as principais defici?ncias dos egressos de cursos de computa??o. Essa problem?tica motivou a realiza??o de uma pesquisa qualitativa sobre os desafios encontrados por professores desses cursos na condu??o, acompanhamento e avalia??o de projetos colaborativos de desenvolvimento de software. Dentre os desafios identificados, destacam-se as dificuldades para acompanhar e avaliar a participa??o dos alunos em projetos acad?micos. Nesse contexto, uma segunda pesquisa de natureza quantitativa foi realizada com o objetivo mapear habilidades transversais dos alunos a um conjunto de indicadores que podem ser extra?dos a partir de reposit?rios de software usando t?cnicas de minera??o de dados. Tais indicadores visam auxiliar o professor no acompanhamento de habilidades transversais, tais como: a participa??o no trabalho em equipe, a lideran?a, resolu??o de problemas e o ritmo de comunica??o durante projetos. Para isto, uma abordagem de avalia??o por pares foi aplicada em uma turma de desenvolvimento colaborativo do curso de Engenharia de Software da Universidade Federal do Rio Grande do Norte (UFRN). Essa pesquisa apresenta um estudo de correla??o entre os scores das habilidades transversais dos alunos e os indicadores baseados na minera??o de reposit?rios de software. O objetivo da pesquisa ? melhorar a compreens?o das din?micas de trabalho em projetos colaborativos de estudantes, assim como incentivar o desenvolvimento de habilidades transversais que s?o exigidas pela ind?stria de desenvolvimento de software. / Soft skills and teamwork practices were identi ed as the main de ciencies of recent graduates in computer courses. This issue led to a realization of a qualitative research aimed at investigating the challenges faced by professors of those courses in conducting, monitoring and assessing collaborative software development projects. Di erent challenges were reported by teachers, including di culties in the assessment of students both in the collective and individual levels. In this context, a quantitative research was conducted with the aim to map soft skill of students to a set of indicators that can be extracted from software repositories using data mining techniques. These indicators are aimed at measuring soft skills, such as teamwork, leadership, problem solving and the pace of communication. Then, a peer assessment approach was applied in a collaborative software development course of the software engineering major at the Federal University of Rio Grande do Norte (UFRN). This research presents a correlation study between the students' soft skills scores and indicators based on mining software repositories. This study contributes: (i) in the presentation of professors' perception of the di culties and opportunities for improving management and monitoring practices in collaborative software development projects; (ii) in investigating relationships between soft skills and activities performed by students using software repositories; (iii) in encouraging the development of soft skills and the use of software repositories among software engineering students; (iv) in contributing to the state of the art of three important areas of software engineering, namely software engineering education, educational data mining and human aspects of software engineering.