Submitted by Jorge Silva (jorgelmsilva@ufrrj.br) on 2017-09-19T19:15:57Z No. of bitstreams: 1 2011 - Rinaldo Farias de Vasconcelos.pdf: 455085 bytes, checksum: 426960aff50632355015fbd7293ac299 (MD5) / Made available in DSpace on 2017-09-19T19:15:57Z (GMT). No. of bitstreams: 1 2011 - Rinaldo Farias de Vasconcelos.pdf: 455085 bytes, checksum: 426960aff50632355015fbd7293ac299 (MD5) Previous issue date: 2001-07-19 / CAPES / This search has the purpose of to analyze the implications for the implementation of the study of history and culture of Indigenous and Afro-Brazilian in the context of basic education and other levels and education arrangements, from the experiences of teachers and students of the technical course in agriculture, integrated into the high school Campus Barreiros ? Federal Institute of Education, Science and technology of Pernambuco, focusing on ethnic-racial relations and reparations policies, recognition and appreciation of affirmative actions in everyday life at school. From the point of view of how to approach the problem, the search is qualitative descriptive character, having as a tool for field research to interview structured way. This study was born from the observation that there is a great difficulty to work with the contents that guide the theme of history and indigenous and Afro-Brazilian culture in the school context, as well as, ethnic-racial relations in the teaching-learning environment. To approach the theoretical reference was used the works of Kabengele Munanga, Maria Aparecida S. Bento, Lilia Moritz Schwarcz and Eliane Cavalleiro that inserts in the contemporary debate on the issues discussion-ethnic racial and their repercussions on relations between students and teachers in the school environment. The school, as A strategic area, has a key role in the process of construction and reconstruction of social values, so necessary if makes a new look on the racial issue in the school context, since the Brazilian education system is based on a Eurocentric vision, monoculture, discriminatory and exclusionary racist character. / A presente pesquisa tem o prop?sito de analisar as implica??es na implementa??o do Estudo da Hist?ria e Cultura Afro-Brasileiro e Ind?gena no contexto da educa??o b?sica e outros n?veis e modalidades de ensino, a partir das experi?ncias dos professores (as) e dos alunos (as) do curso t?cnico em agropecu?ria, integrado ao ensino m?dio, do Campus Barreiros - Instituto Federal de Educa??o, Ci?ncia e Tecnologia de Pernambuco, dando enfoque ?s rela??es ?tnico-raciais e as pol?ticas de repara??es, reconhecimento e valoriza??o de a??es afirmativas no cotidiano escolar. Do ponto de vista da forma de abordagem do problema, a pesquisa ? de car?ter qualitativo descritivo, tendo como instrumento para a pesquisa de campo a entrevista semi-estruturada. Este estudo nasceu a partir da observa??o de que h? uma grande dificuldade de se trabalhar os conte?dos que norteiam a tem?tica da hist?ria e cultura afro-brasileira e ind?gena no contexto escolar, bem como, ?s rela??es ?tnico-raciais no ambiente de ensino-aprendizagem. Para a abordagem do referencial te?rico foi utilizado os trabalhos de Kabengele Munanga, Maria Aparecida S. Bento, Lilia Moritz Schwarcz e Eliane Cavalleiro que insere no debate contempor?neo a discuss?o sobre as quest?es ?tnico-raciais e suas repercuss?es nas rela??es entre alunos (as) e professores no ambiente de escolar. A escola, como espa?o estrat?gico, tem um papel fundamental no processo de constru??o e reconstru??o de valores sociais, por isso necess?rio se faz um novo olhar sobre a quest?o racial no contexto escolar, j? que o sistema de ensino brasileiro se baseia numa vis?o euroc?ntrica, monocultural, discriminat?ria de car?ter racista e excludente.

Submitted by Celso Magalhaes (celsomagalhaes@ufrrj.br) on 2017-09-20T11:28:58Z No. of bitstreams: 1 2017 - Mateus Marques Bueno.pdf: 6490424 bytes, checksum: f696a97cede78e62f97260ed46c9a661 (MD5) / Made available in DSpace on 2017-09-20T11:28:58Z (GMT). No. of bitstreams: 1 2017 - Mateus Marques Bueno.pdf: 6490424 bytes, checksum: f696a97cede78e62f97260ed46c9a661 (MD5) Previous issue date: 2017-02-10 / Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico - CNPq / In the marine fluvial plains, present along the Brazilian coast, there are intrinsic interaction between the agents coordinated by sea actions and fluvial dynamics. These interactions offer quantity and quality of environmental services to their river basins. This study characterized the Basin of the Guandu System (BHSG) and its flat land in relation to the offer of ecosystem services. Subsequently, it prospected on the factors that determine the supply and management of services as environmental assets in microbasins, strongly anthropized by mineral activity. Geoprocessing information was used to spatialize areas with similar ecosystem services and a local monitoring system to evaluate and size environmental services. The BHSG is home to Sepetiba marine fluvial plain in 50.21% of its area, whose altitude is less than 40 m, forms of flat or smooth undulating relief. In it interact the environmental effects produced by the rocky massifs of the high parts and the oscillations of the seas in the low parts. The combination of the contemporary geomorphological processes of the basin's hydrogel zones with their environmental attributes allowed the identification of homogeneous vocations of environmental services in the areas of abstraction and water regulation. As well, to identify the water effects where there is synergy between the Guandu rectified channel, built at 64 years and reserve areas around the original river bad, which were sectioned. In these places, there was an increase in upstream and downstream water flow reserve, which can be exploited for management purposes through the payment of environmental services. In the anthropogenic basin located in a region where the reservoir effects of the plain are inexpressive, the design of the water collection and management strategies in the riverbed with infiltration induction zones, through infiltration tanks, functioned as sediment retainers by preventing the emission of 29,000 t in 4 years. In addition to guaranteeing the supply of the average demand of 90 m3d-1 of raw water in a sparsely populated region with rainfall irregularity, historically exploited by subsistence agriculture, located in the peri-urban region of the RMRJ and with a predominantly negative annual climatic water balance, evidencing its potential to produce water under unfavorable conditions. / Nas plan?cies fl?vio marinha, presente ao longo da costa brasileira, existem intera??o intr?nseca entre os agentes coordenados pelas a??es do mar e a din?mica fluvial. Estas interagem e oferece quantidade e qualidade de servi?os ambientais ?s suas bacias hidrogr?ficas. Este estudo caracterizou a Bacia Hidrogr?fica do Sistema Guandu (BHSG) e sua plan?cie em rela??o a oferta de servi?os ecossist?micos. Posteriormente, prospectou sobre os fatores que determinam a oferta e manejo de servi?os como ativos ambientais em microbacias, fortemente antropizada por atividade mineral. Foram utilizadas informa??es de geoprocessamento para espacializar ?reas com servi?os ecossist?micos similares e sistema de monitoramento local para avaliar e dimensionar os servi?os ambientais. A BHSG abriga a plan?cie fl?vio marinha de Sepetiba em 50,21% de sua ?rea, cuja altitude ? inferior a 40 m, apresenta-se formas de relevo plano ou suave ondulado. Nela interagem os efeitos ambientais produzidos pelos maci?os rochosos das partes altas e as oscila??es dos mares nas partes baixas. A combina??o dos processos geomorfol?gicos contempor?neos das zonas hidrogen?ticas da bacia com seus atributos ambientais permitiu identificar voca??es homog?neas de presta??o de servi?os ambientais nas ?reas de capta??o e regula??o h?drica. Assim como, identificar os efeitos h?dricos onde h? sinergia entre o canal retificado do Guandu, constru?do a 64 anos e ?reas de reserva??o no entorno dos talvegues originais, que foram seccionados. Nestes locais, observou-se aumento da reserva??o dos fluxos h?dricos ? montante e diminui??o a jusante, que podem ser explorados para fins de manejo via pagamento de servi?os ambientais. Na bacia antropizada situado em regi?o onde os efeitos de reserva??o da plan?cie ? inexpressivo, o desenho das estrat?gias de coleta e administra??o h?drica nos talvegues com zonas de indu??o de infiltra??o, por meio de tanques de infiltra??es, funcionaram como retentores de sedimentos ao impedir a emiss?o de 29.000 t em 4 anos. Al?m de garantir o abastecimento da demanda m?dia de 90 m3d-1 de ?gua bruta em regi?o de escassa e com irregularidade de chuvas, explorada historicamente por agricultura de subsist?ncia, situada em regi?o periurbana da RMRJ e com balan?o h?drico climatol?gico anual predominantemente negativo no tempo, evidenciando o seu potencial de produ??o de ?gua em condi??es desfavor?veis

Submitted by Celso Magalhaes (celsomagalhaes@ufrrj.br) on 2017-09-29T11:51:49Z No. of bitstreams: 1 2017 - Leif Armando Portal Cahuana.pdf: 7996361 bytes, checksum: aa4cdf76609baa144dc4396e673afb96 (MD5) / Made available in DSpace on 2017-09-29T11:51:49Z (GMT). No. of bitstreams: 1 2017 - Leif Armando Portal Cahuana.pdf: 7996361 bytes, checksum: aa4cdf76609baa144dc4396e673afb96 (MD5) Previous issue date: 2017-02-21 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES / The objective of this work was to determine the dendrochronological potential of five forest species of the Fabaceae family from Amazonia Peru. Five native tree species (Apuleia leiocarpa, Hymenaea oblonglifolia, Myroxylon balsamum, Amburana cearensis and Dipteryx odorata), which occur naturally in the Madre de Dios region of Peru, were used. The anatomical characteristics of the wood, growth ring characterization, dendrochronology, growth modeling and X-ray microdensitometry were determined. In the study of the anatomy and characterization of growth rings, the species H. oblonglifolia and A. cearensis presented rings of Growth to the naked eye, demarcated by the fibrous zones and the marginal parenchyma. In the study of dendrochronology the master chronological series of the H. oblonglifolia species of 1778-2013 years and A. cearensis of 1866-2013 years were constructed, and the relation with the climate of the region (precipitation and temperature), it was verified that the variable Climatic conditions in the area of study determining for the greatest growth in diameter of the trunks of the trees was the last rainfall the species presented answers common to the El Ni?o phenomenon. In the growth modeling study, the species A. cearensis was determined the minimum age according to the Law of Peru of 96 years and a technical age of 58 years and for H. oblonglifolia, it was determined the minimum age according to Law Of Peru of 123 years and a technical age of 57 years. Finally, in the study of the radial physical and anatomical variability of the tree wood of Amburana cearensis, X-ray microdensitometry provided an accurate measurement of the variations in the apparent density of A. cearensis wood, indicative of its anatomical structure and demarcating the limits of the rings Fibrous areas. / O objetivo do trabalho foi Este trabalho foi determinar o potencial dendrocronol?gico de cinco esp?cies florestais da fam?lia Fabaceae oriunda da Amaz?nia Peru. Foram utilizadas cinco esp?cies arb?reas nativas (Apuleia leiocarpa, Hymenaea oblonglifolia, Myroxylon balsamum, Amburana cearensis e Dipteryx odorata), de ocorr?ncia natural na regi?o de Madre de Dios no Peru. Foram determinadas as caracter?sticas anat?micas do lenho, caracteriza??o dos an?is de crescimento, dendrocronologia, modelagem de crescimento e a microdensitometria de raios X. No estudo da anatomia e caracteriza??o dos an?is de crescimento, as esp?cies H. oblonglifolia e A. cearensis, apresentaram an?is de crescimento ao olho nu, demarcados pelas zonas fibrosas e o par?nquima marginal. No estudo de dendrocronologia foram constru?das as s?ries cronol?gicas mestre das esp?cies H. oblonglifolia de 1778-2013 anos e A. cearensis de 1866-2013 anos, e a rela??o com o clima da regi?o (precipita??o e temperatura), verificou-se que a vari?vel clim?tica na ?rea de estudo determinante para o maior crescimento em di?metro dos troncos das ?rvores foi a precipita??o por ?ltimo as esp?cies apresentaram respostas comuns ao fen?meno do El Ni?o. No estudo de modelagem de crescimento a esp?cie A. cearensis, determinou-se a idade m?nima em fun??o a Lei do Peru de 96 anos e uma idade t?cnica de 58 anos e para H. oblonglifolia, determinou-se a idade m?nima em fun??o a Lei do Peru de 123 anos e uma idade t?cnica de 57 anos. Por ?ltimo no estudo da variabilidade radial f?sica e anat?mica do lenho de ?rvores de Amburana cearensis, a microdensitometria de raios X proporcionou uma mensura??o acurada das varia??es da densidade aparente do lenho de A. cearensis, indicativas da sua estrutura anat?mica e demarcando os limites dos an?is pelas zonas fibrosas

Submitted by Celso Magalhaes (celsomagalhaes@ufrrj.br) on 2017-11-07T13:04:43Z No. of bitstreams: 1 2016 - Paula de Carvalho Machado Araujo.pdf: 2347237 bytes, checksum: 44b7c9cb3df1557a677fc89555c2a535 (MD5) / Made available in DSpace on 2017-11-07T13:04:43Z (GMT). No. of bitstreams: 1 2016 - Paula de Carvalho Machado Araujo.pdf: 2347237 bytes, checksum: 44b7c9cb3df1557a677fc89555c2a535 (MD5) Previous issue date: 2016-04-28 / This study was conducted in the Aman? Lake and Paran? region of the Aman? Sustainable Development Reserve located in the middle Solim?es region, state of Amazonas, Brazil. Research was done in three phases: the first used an adapted Free List method with 13 ranchers from the region. Subsequently, botanical specimens of species cited by at least three farmers were collected; photographic registers of these plants were also taken. Photographs were used in the next phase of research to inform a questionnaire applied to the same 13 farmers; the instrument used the Semantic Differentiation method, of 7 points, to understand ranchers? perceptions of the diverse characteristics of selected plants. The main objective of this study was to evaluate the perception of ranchers in relation to the origin, environment, and characteristics of plants that are part the of cow and water buffalo diet; and to further understand the cultural relevance, feed potential, and ecological function of these plants, comparing farmers? perceptions with findings from the scientific literature. In total 84 plant names were compiled, with 29 evaluated in this project / Este trabalho teve como ?rea de estudo o Lago e Paran? do Aman?, na Reserva de Desenvolvimento Sustent?vel Aman?, localizada na regi?o do M?dio Solim?es, no estado do Amazonas. Foram realizadas tr?s etapas da pesquisa: na primeira, utilizou-se uma adapta??o do m?todo de Lista Livre junto a 13 criadores da regi?o. Em seguida, foi realizada coleta bot?nica das esp?cies citadas por pelo menos 3 criadores, obtendo ainda registro fotogr?fico das mesmas. Estas fotos foram utilizadas na etapa seguinte a fim de ilustrar um question?rio com os mesmos 13 criadores onde utilizou-se o m?todo de Diferencial Sem?ntico de 7 pontos para conhecer as percep??es dos criadores sobre diversas caracter?sticas das plantas selecionadas. Este trabalho teve por objetivo principal avaliar a percep??o dos criadores da regi?o em rela??o ? origem, ambiente e caracter?sticas das plantas que fazem parte da dieta de bovinos e bubalinos, tentando compreender a relev?ncia cultural, o potencial forrageiro e as fun??es ecol?gicas das mesmas atrav?s das percep??es e dos achados de literatura. No total foram contabilizados 84 nomes diferentes de plantas, tendo sido avaliadas 29 plantas

Submitted by Jorge Silva (jorgelmsilva@ufrrj.br) on 2018-03-27T19:26:57Z No. of bitstreams: 1 2015 - Leonardo Silva Moraes.pdf: 2362126 bytes, checksum: fe3a757125e189aee8c0a980e864ea84 (MD5) / Made available in DSpace on 2018-03-27T19:26:57Z (GMT). No. of bitstreams: 1 2015 - Leonardo Silva Moraes.pdf: 2362126 bytes, checksum: fe3a757125e189aee8c0a980e864ea84 (MD5) Previous issue date: 2016-05-06 / The aim of this study is to conduct a study of the use of Virtual Learning Environment - AVA (Moodle and Mconf) training of agricultural extension workers. The object of study were students from dairy milk cattle breeding program with technique that are students of IFES - Campus Santa Teresa. The study is divided into three parts, the first is the lifting of the student profile that is inserted into the program and the identification of their knowledge about the technologies for the distance learning, then based on this survey was drawn methodologies based on bibliographic references and offered by the teacher Ismail Haddade a virtual learning environment to students, to finalize the study was conducted questionnaires with open and closed questions in order to measure the AVA's contribution to the construction of student knowledge. It was found in these analyzes that 85% of students said that AVA has contributed significantly to improve their studies. It was also found that 84% of students indicated that the use of AVA increased their interest in the study. We found that, among the main advantages in the use of AVA 30% cited the ease of access, 26% diversity of resources, 26% mobility in various devices and 18% significant improvement in learning. The main conclusion of this study indicates that the use of AVA provides the student with a variety of resources, new types of activities, ease of access information relevant to their subject of study which favors the construction of knowledge in a collaborative and meaningful way. / O objetivo desse trabalho ? realizar um estudo do uso do Ambiente Virtual de Aprendizagem - AVA (Moodle e Mconf) no treinamento de extensionistas agr?colas. O objeto de estudo foram alunos do programa de pecu?ria leiteira leite com t?cnica que s?o alunos do IFES ? Campus Santa Teresa. O estudo ? dividido em tr?s partes, a primeira ? o levantamento do perfil do aluno que est? inserido dentro do programa e os identifica??o dos seus conhecimentos a respeito das tecnologias voltadas para o EAD, posteriormente com base nesse levantamento foi tra?ado metodologias baseadas em referencial bibliogr?fico e ofertado junto ao professor Ismail Haddade um ambiente virtual de aprendizagem aos alunos, para finalizar o estudo foi realizado question?rios com perguntas abertas e fechadas com o intuito de mensurar a contribui??o do AVA para a constru??o do conhecimento dos alunos. Foi verificado nessas an?lises que 85% dos alunos afirmaram que o AVA contribuiu significamente para melhora dos seus estudos. Tamb?m foi constatado que 84% dos alunos indicaram que o uso do AVA aumentou o interesse deles pelo estudo. Verificamos que, dentre as principais vantagens no uso do AVA 30% citaram a facilidade de acesso, 26% a diversidade de recursos, 26% a mobilidade em diversos dispositivos e 18% a melhora significativa de aprendizagem. A principal conclus?o desse estudo aponta que o uso do AVA propicia ao aluno uma diversidade de recursos, novas tipos de atividades, facilidade de acesso as informa??es pertinentes ao objeto de estudo deles o que favorece a constru??o do conhecimento de forma colaborativa e significativa.

Submitted by Sandra Pereira (srpereira@ufrrj.br) on 2018-05-09T13:59:39Z No. of bitstreams: 1 2010 - Marcos Pinheiro Franque.pdf: 14895648 bytes, checksum: 175b19f715efd4282c83347a6d0ce674 (MD5) / Made available in DSpace on 2018-05-09T13:59:39Z (GMT). No. of bitstreams: 1 2010 - Marcos Pinheiro Franque.pdf: 14895648 bytes, checksum: 175b19f715efd4282c83347a6d0ce674 (MD5) Previous issue date: 2010-03-19 / Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico, CNPq, Brasil. / This work describes the dairy farms profile and of its owners, as well as the epidemiological condition of the herd to Babesia bovis, Babesia bigemina and Anaplasma marginale infection in the south mesorregi?o Espirito-santense, with base in a serologic study. Owners or manager of 38 dairy farms were interviewed with a semi-structured questionnaire and the data analyzed by descriptive statistics. In 97% of the dairy farms, the herd was formed by animals with different degrees of blood girolando. Of all producers, 61% were exclusively dairy farms owners and 34% were also coffee producer. The extensive creation system is used in 61% of dairy farms. The dairy farms management, in 89% and 11% of the cases were accomplished by the owners and administrators, respectively. The serologic study was accomplished using indirect ELISA of 756 samples of bovine serum, 380 of dairy cows and 376 of calves in breast feeding phase. The mesorregi?o studied was classified in situation of stability for B. bovis (98,4%), B. bigemina (96,7%) and A. marginale (96,6%) to dairy cows. In relation to the calves was observed prevalence of 75,5% to Babesia bovis, 78,5% to B. bigemina and 69,2% to A. marginale. In general, the results demonstrated that is possible to increase the production and productivity of these dairy farms, but is necessary the owners adapts to the current competitive productive milk system, mainly about the managerial aspect. In the south mesorregi?o Esp?rito-santense the risk of occurrence of outbreaks of babesiosis or anaplasmosis in adult animals is low. However, preventive measured should be adopted for the calves, mainly for those with less to three months of age. / Este trabalho descreve o perfil de propriedades leiteiras e dos produtores, bem como a situa??o epidemiol?gica do rebanho da mesorregi?o sul Esp?rito-santense em rela??o ? Babesia bovis, Babesia bigemina e Anaplasma marginale, com base em um estudo sorol?gico. Propriet?rios ou administradores de 38 estabelecimentos produtores foram entrevistados com uso de um question?rio semi-estruturado e os dados analisados atrav?s de estat?stica descritiva. Em 97% das propriedades visitadas, o rebanho leiteiro era formado por animais com diferentes graus de sangue girolando. Dentre os produtores, 61% se dedicavam exclusivamente a produ??o leiteira e 34% tamb?m se dedicavam ? cafeicultura. O sistema de cria??o extensiva foi utilizado em 61% das propriedades. Foi observado que o gerenciamento, em 89% e 11% dos casos era realizado pelos propriet?rios e administradores, respectivamente. O estudo sorol?gico foi realizado utilizando o m?todo de ELISA indireto a partir de 756 amostras de soro bovino, dos quais 380 de vacas em lacta??o e 376 de bovinos jovens em fase de aleitamento. Para vacas em lacta??o, a mesorregi?o foi classificada em situa??o de estabilidade para B. bovis (98,4%), B. bigemina (96,7%) e A. marginale (96,6%). Em rela??o aos bovinos jovens foi observada preval?ncia de 75,5% para Babesia bovis, 78,5% para B. bigemina e 69,2% para A. marginale. Os resultados demonstraram que, em geral, as propriedades possuem potencial para aumentar sua produ??o e produtividade, mas os produtores precisam se adequar ao competitivo sistema de produ??o de leite, principalmente no aspecto gerencial. Na mesorregi?o sul Esp?rito-santense o risco de ocorr?ncia de surtos das doen?as do Complexo Tristeza Parasit?ria Bovina ? baixo para os animais adultos. Contudo, medidas preventivas devem ser adotadas para os bezerros, principalmente para aqueles com menos de tr?s meses de idade.

Submitted by Jorge Silva (jorgelmsilva@ufrrj.br) on 2018-05-18T17:57:14Z No. of bitstreams: 1 2016 - Marlene Salete Uberti.pdf: 4547445 bytes, checksum: 0815ad8e3c8b5cdf64206ec60d91619c (MD5) / Made available in DSpace on 2018-05-18T17:57:14Z (GMT). No. of bitstreams: 1 2016 - Marlene Salete Uberti.pdf: 4547445 bytes, checksum: 0815ad8e3c8b5cdf64206ec60d91619c (MD5) Previous issue date: 2016-07-11 / Traditionally the Classical Linear Regression Models (CLRMs) have been used for mass appraisal of property bulk value, however, it has been noticed the need to take into account the data spatial variation. This modeling for the geographic effects has been used mainly in urban area appraisals, while farmland values are also affected by geographic location. The lack of methodologies for mass evaluation of farmland has led to tax evasion of farmland tax revenue (ITR), as it has been inefficiently and inexpressively collected since its enactment in 1964. The objective of this paper is to use econometrics models of spatial regression in farmland comparables to produce a map of standard ground value for the Northern Region of Rio de Janeiro State, Brazil. The proposed methodology includes the investigation and modeling the effects of spatial autocorrelation on the CLRMs, to evaluate their performance comparing them with the spatial models and to produce a map of standard ground value through ordinary Kriging and kernel estimator. The sample of comparables was comprised of 113 observations for model development and 25 observations for validation. To evaluate the performance of obtained maps of values were used the validation samples to calculate the Root Mean Square Error (RMSE) values and the metrics recommended by the International Association of Assessing Officers (IAAO). The results showed that the spatial autocorrelation can have its effect predicted by the Conditional AutoRegressive model (CAR) and by the Geographically Weighted Regression (GWR). By using the values predicted with the GWR model and the validation comparables, the Kernel estimator presented the best performance on map production, yielding the lowest RMSE and dispersion coefficients, median of ratios and Price Related Differential (PRD) close to IAAO recommended values. The combination of classical and spatial regression methodologies and the use of Geostatistics techniques showed to be suitable for obtaining maps of standard ground value for farmland areas. The proposed methodology has been show applicable to farmland sales market, as it can be used by municipalities to obtain representative models of real market values, as well as to produce farmland standard ground value maps. / Nas avalia??es em massa de im?veis tradicionalmente s?o utilizados os modelos cl?ssicos de regress?o linear (MCRL), entretanto tem-se verificado a necessidade de modelar os dados espacialmente. Esta modelagem dos efeitos espaciais vem sendo utilizada principalmente nas avalia??es de ?reas urbanas, sendo que os valores dos im?veis nas ?reas rurais tamb?m s?o afetados pela localiza??o geogr?fica. A inexist?ncia de metodologias de avalia??o em massa de im?veis rurais ? um dos motivos da evas?o da receita do imposto territorial rural (ITR), pois desde que foi criado em 1964, a arrecada??o deste imposto ? ineficiente e inexpressiva. O objetivo deste trabalho foi a utiliza??o de modelos econom?tricos de regress?o espacial na modelagem dos efeitos espaciais em uma amostra de im?veis rurais para a elabora??o da Planta de Valores Gen?ricos (PVG) em uma ?rea da Regi?o Norte Fluminense, estado do Rio de Janeiro. A proposta metodol?gica consistiu em investigar e modelar os efeitos causados pela autocorrela??o espacial sobre os MCRL, avaliar seus desempenhos comparando-os com os modelos espaciais e produzir a PVG por meio da Krigagem ordin?ria e do estimador Kernel. A amostra utilizada contou com 113 observa??es e 25 amostras de verifica??o. Para avaliar o desempenho das superf?cies de valores obtidas foram utilizadas as amostras de verifica??o e calculados os valores da Raiz Quadrada do Erro M?dio Quadr?tico (REMQ) e das m?tricas recomendadas pela International Association of Assessing Officers (IAAO). Os resultados mostraram que a autocorrela??o espacial pode ter seus efeitos reduzidos pelo Modelo do Erro Espacialmente Correlacionado (Conditional Auto Regressive - CAR) e pela Regress?o Geograficamente Ponderada (RGP). A superf?cie gerada pelo estimador Kernel, utilizando-se os valores preditos da amostra de verifica??o pelo modelo RGP foi a que obteve o melhor desempenho com menor REMQ e valores do coeficiente de dispers?o (COD), da mediana das raz?es e do Diferencial Relativo ao Pre?o (Price Related Differential - PRD) pr?ximos dos recomendados pela IAAO. A combina??o das metodologias da regress?o cl?ssica e espacial, e a utiliza??o de t?cnicas de Geoestat?stica se mostraram adequadas para a elabora??o e obten??o da PVG para ?reas rurais. A metodologia proposta se mostrou aplic?vel nos mercados de terras rurais, pois pode ser utilizada pelos munic?pios para obter modelos representativos da realidade destes mercados, bem como para elaborar a PVG das ?reas rurais.

Submitted by Sandra Pereira (srpereira@ufrrj.br) on 2018-08-21T14:49:02Z No. of bitstreams: 1 2010 - Otavio Raymundo L?.pdf: 585290 bytes, checksum: ee9c2ebbd0832facdf245e177fef5fa4 (MD5) / Made available in DSpace on 2018-08-21T14:49:02Z (GMT). No. of bitstreams: 1 2010 - Otavio Raymundo L?.pdf: 585290 bytes, checksum: ee9c2ebbd0832facdf245e177fef5fa4 (MD5) Previous issue date: 2010-02-26 / Agricultural use of sewage sludge has become, increasingly, a practice adopted by sanitation companies to solve partly the problem of final disposal of waste. As the sludge to be used generally need to be dry and that the drying process can alter the distribution of metals, the general aim of this study was to evaluate the effect of drying temperature and storage time on chemical parameters and the metal availability and distribution. The specific objectives were: (i) to study how the drying temperature (air, 40?C and 65?C) sludge, associated with the storage time (zero-fresh, and one year), influenced the availability of metals and the possible chemical changes induced in the sludge, (ii) to evaluate how the high content of iron present and the microbial activity affect the availability of metals in the sludge studied, as a function of temperature of drying, and (iii) to characterize the soluble organic fraction leached by infrared absorption spectrometry in samples of dried sludge at different temperatures and stored for one year. Fresh and stored for one year sludge were dried with forced air circulation, grounded and chemical analyzed. The BCR sequential extraction was applied to assess the availability and distribution of metals. The drying of sewage sludge in the air encouraged increasing availability of metals, however, where temperature increased it diminished due to binding of metals with more stable compounds. The reduction of total organic carbon due to volatilization and biodegradation was favored by increased temperature. The decrease in the levels of iron and zinc, with increasing time and temperature drying to constant weight and pH close to neutral, favored readsorption and/or precipitation of metals to less labile forms. The wet sewage sludge, stored in refrigerated conditions (4?C), was subjected to different times and drying temperatures in the greenhouse and, after being re-moistened been and incubated (28 ? 1?C) for zero, one and three days. The methods of fumigation extraction and Mehlich3 were used to assess the microbial activity and availability of metals, respectively. Increased levels of soluble organic carbon and iron were directly related to the increase of incubation time and temperature drying. For leaching, the dried sludge?s were packed in PVC columns of 50 mm and related to the mass of wet sludge, on a dry basis. The increase in drying temperature of the sludge increased the organic carbon dissolved in the leachate extract, without, however, a corresponding increase in metal content in this extract. / A utiliza??o agr?cola de lodos de esgoto tem se tornado, cada vez mais, uma pr?tica adotada pelas companhias de saneamento, para resolver, em parte, o problema da disposi??o final do res?duo. Como o lodo para ser utilizado geralmente necessita estar seco, e que o processo de secagem pode alterar a distribui??o de metais, o objetivo geral deste trabalho foi avaliar o efeito da temperatura de secagem e do tempo de estocagem em par?metros qu?micos e na disponibilidade e distribui??o de metais. Os objetivos espec?ficos foram: (i) estudar em como a temperatura de secagem (ao ar, 40?C e 65?C) do lodo, associada ao tempo de estocagem (zero ? fresco, e um ano), influencia na disponibilidade de metais e quais as poss?veis altera??es qu?micas provocadas no lodo; (ii) avaliar em como os elevados teores de ferro presentes e a atividade microbiana afetam a disponibilidade de metais no lodo estudado em fun??o da varia??o da temperatura de secagem e (iii) caracterizar a fra??o org?nica sol?vel lixiviada por espectrometria de absor??o no infravermelho, nas amostras de lodo secas em diferentes temperaturas e estocadas por um ano. O lodo fresco e estocado por um ano, ap?s secagem em estufa com circula??o for?ada de ar, foi mo?do e submetido ?s an?lises qu?micas. Na avalia??o da disponibilidade e distribui??o de metais foi utilizado o m?todo de extra??o seq?encial do BCR. A secagem do lodo ao ar favoreceu o aumento da disponibilidade de metais, por?m, em temperaturas maiores esta diminuiu devido ? liga??o dos metais com compostos mais est?veis. A redu??o de carbono org?nico total devido ? volatiliza??o e biodegrada??o foi favorecida pelo aumento de temperatura. A diminui??o nos teores de ferro e zinco com o aumento do tempo e da temperatura de secagem a peso constante e o pH pr?ximo da neutralidade favorecem a readsor??o e/ou precipita??o de metais para formas menos l?beis. O lodo de esgoto ?mido, estocado em condi??es refrigeradas (4?C), foi submetido aos diferentes tempos e temperaturas de secagem na estufa e, ap?s ser re-umedecido e incubado (28 ? 1?C) por zero, um e tr?s dias. Para avalia??o da atividade microbiana e disponibilidade de metais foi utilizado o m?todo de fumiga??o extra??o e o extrator Mehlich 3, respectivamente. O aumento dos teores de carbono org?nico sol?vel e ferro foi diretamente relacionado ao aumento do tempo de incuba??o e temperatura de secagem. Para a lixivia??o, as amostras de lodos secas foram empacotadas em colunas de PVC de 50 mm e relacionados ? massa do lodo ?mido, em base seca. O aumento na temperatura de secagem do lodo causou o aumento no teor de carbono org?nico dissolvido no extrato lixiviado, n?o havendo, por?m, aumento correspondente no teor de metais nesse extrato.

Submitted by Celso Magalhaes (celsomagalhaes@ufrrj.br) on 2018-08-23T14:07:16Z No. of bitstreams: 1 2017 - Barbara Brandt Moura.pdf: 2285485 bytes, checksum: 9eae3c35e652afad0a110dc64eafec10 (MD5) / Made available in DSpace on 2018-08-23T14:07:16Z (GMT). No. of bitstreams: 1 2017 - Barbara Brandt Moura.pdf: 2285485 bytes, checksum: 9eae3c35e652afad0a110dc64eafec10 (MD5) Previous issue date: 2017-04-28 / Summary chapter 1 Lysine is an essential amino acid used as a reference in diet formulations based on the ideal protein concept and is also the main nutrient involved in the muscular development of broilers. Research related to the requirement of lysine for broilers with lower genetic potential for growth are scarce and sometimes quite divergent. The objective of this study is to determine digestible lysine requirements for male broilers with lower genetic potential for growth. A total of 520 male broilers of the RedBro-plum? commercial strain from 42 to 72 days of age and slaughtered at 73 days of age were used. The experimental design was completely randomized (DIC), with five treatments with four replicates with 26 broilers each. The treatments were constituted with the values 0.689, 0.842, 0.995, 1.148 and 1.301% of digestible lysine obtained from the addition of L-Lysine HCl to the basal diet, replacing the corn starch. In parameter of negative linear recess performance for feed conversion and linear and line use efficiency positive for lysine consumption. In carcass traits, there was a negative linear regression in absolute carcass, breast, wing, thigh + overcook and heart and quadratic effects for absolute fat weight, back yield and relative fat weight. The lowest digestible lysine in the feed, 0.689%, determining adequate performance and carcass characteristics. However, lower abdominal fat deposition would be obtained with 1.05% digestible lysine in the diet, it can be considered the requirement value for slow-growing male broilers in the evaluated phase. The qualitative food restriction consists in the dilution of the diets, through the inclusion of ingredients with low nutritional value, in order to reduce the amount of nutrients absorbed. The objective of this experiment was to evaluate the rates with different inclusion levels of ground Tifton 85 hay in the proportions of 0, 5, 10 and 15%. A total of 288 male broilers of the RedBro-plum? lineage were used, in a completely randomized design, in 4 treatments and 4 replicates of 18 broilers each. As broilers received as experimental feeds from 42 to 72 days of age. At 73 days the chickens were slaughtered for carcass analysis and intestine collections were performed in 8 broilers per replicate for morphological and morphometric analysis. A studied hay inclusion influenced linearly negative for weight gain and, in a positive way, feed consumption and feed conversion. Linear reductions without absolute carcass and breast weight, carcass yield and our liver and gizzard weights were also observed. Quadratic effect was observed for absolute weight of dorsum, liver and fat, yield of dorsum and villus height. The inclusion of Tifton 85 hay in the broiler ration of lower potential for growth from 42 to 72 days of age resulted in worsening performance and carcass yield. The use of hay was effective as a measure of qualitative restriction Summary chapter 2 The qualitative food restriction consists in the dilution of the diets, by means of the inclusion of ingredients with low nutritional value, usually, rich in fibers to reduce the amount of nutrients absorbed. The aim of this study was to evaluate rations with different inclusion levels of ground Tifton 85 hay in rations at the proportions of 0%, 5%, 10% and 15%. A total of 288 male Red Bro-plum? commercial broilers were distributed in a completely randomized design in 4 treatments and 4 replicates of 18 broilers per treatment. The broilers received the experimental rations from 42 to 72 days of age. At 73 days all broilers were slaughtered for carcass analysis, and intestine samples from 8 broilers were collected per replicate for morphological and intestinal morphometric analysis. Increasing the inclusion values of dietary hay influenced linearly performance of broilers, with the decrease in weight gain, increase in feed consumption and impacting negatively in feed conversion values. Likewise, elevating the addition of hay in the ration showed linear reductions in absolute weight, carcass yield, and linear increases in the relative weights of liver and gizzard. The inclusion of Tifton 85 hay in broiler ration of lower potential for growth from 42 to 72 days of age affected negatively performance and carcass yield. The use of hay was effective as a measure of qualitative restriction of the ration if there is intention to control the growth of broilers according to a certain slaughter age / Resumo Cap?tulo 1 A lisina ? um amino?cido essencial utilizado como refer?ncia nas formula??es de dietas com base no conceito de prote?na ideal, sendo a lisina um dos principais nutrientes envolvidos no desenvolvimento das aves. A maioria das pesquisas relacionadas a exig?ncia de lisina para frangos de corte s?o realizadas com frangos de linhagens convencionais, no entanto para frangos de corte de menor potencial gen?tico para crescimento as refer?ncias s?o escassas e por vezes bastante divergentes. Assim, o objetivo deste estudo foi determinar as exig?ncias em lisina digest?vel para frangos de corte machos de menor potencial gen?tico para crescimento. Foram utilizados 520 frangos de corte, machos, da linhagem comercial RedBro-plum? (Caipira Franc?s Vermelho Escuro), de 42 a 72 dias de idade e abatidos aos 73 dias de idade. O delineamento experimental utilizado foi o inteiramente casualizado (DIC), sendo cinco tratamentos e quatro repeti??es por tratamento, totalizando 20 unidades experimentais de 26 aves cada. Os tratamentos foram constitu?dos com valores crescentes de lisina digest?vel obtidos a partir da adi??o de L-Lisina HCl ? dieta basal, em substitui??o ao ingrediente amido de milho, sendo 0,689, 0,842, 0,995, 1,148 e 1,301% de lisina digest?vel. Em par?metros de desempenho foi observada regress?o linear negativa para convers?o alimentar e efici?ncia da utiliza??o de lisina e linear positiva para consumo de lisina, de acordo com o aumento nos valores de lisina digest?vel na ra??o. Tal efeito pode ter sido influenciado pela necessidade dos frangos em aumentar o consumo de ra??o nos tratamentos iniciais, para suprir o aporte limitante de lisina na ra??o. Para as caracter?sticas de carca?a foi verificado regress?o linear negativa nos pesos absolutos de carca?a, peito, asa, coxa + sobrecoxa e cora??o e efeito quadr?tico para peso absoluto de gordura, rendimento de dorso e peso relativo de gordura com o aumento nos valores de lisina digest?vel. O menor valor em lisina digest?vel na ra??o, 0,689%, foi suficiente para determinar resultados adequados de desempenho e caracter?sticas de carca?a. Entretanto, para propiciar menor deposi??o de gordura abdominal o valor de 1,05 % de lisina digest?vel na ra??o pode ser considerado o valor de exig?ncia para os frangos machos de crescimento lento na fase de 42 a 72 dias de idade. Resumo cap?tulo 2 A restri??o alimentar qualitativa consiste na dilui??o das dietas, por meio da inclus?o de ingredientes com baixo valor nutricional, normalmente ricos em fibras, a fim de reduzir a quantidade de nutrientes absorvidos. O objetivo deste experimento foi avaliar ra??es com diferentes n?veis de inclus?o de feno de Tifton 85 mo?do na ra??o, nas propor??es de 0, 5, 10 e 15 %. Foram utilizados 288 frangos de corte de crescimento lento, machos, da linhagem comercial RedBro-plum? (Caipira Franc?s Vermelho Escuro), distribu?das em um delineamento inteiramente casualizado, em 4 tratamentos e 4 repeti??es de 18 aves por tratamento. As aves receberam as ra??es experimentais dos 42 aos 72 dias de idade. Aos 73 dias foram abatidos todos os frangos para analise de carca?a e foram realizadas coletas de intestino em 8 frangos por repeti??o para a an?lise morfol?gica e morfom?trica intestinal. Os aumentos nos valores de inclus?o de feno estudados na dieta influenciaram de forma linear o desempenho dos frangos, com diminui??o no ganho de peso, aumento no consumo de ra??o, no consumo de fibra bruta e piora nos valores de convers?o alimentar e aumento. Foram observadas ainda, com o aumento de adi??o de feno na ra??o, redu??es lineares no peso absoluto e no rendimento de carca?a e aumentos lineares nos pesos relativos do f?gado e da moela. A avalia??o da morfometria intestinal demonstrou que houve efeito quadr?tico na altura de vilosidade. A an?lise econ?mica demonstrou efeito linear decrescente para o ?ndice de rentabilidade. A inclus?o de feno de Tifton 85 na ra??o de frangos de corte de menor potencial de crescimento no per?odo de 42 a 72 dias de idade resultou na piora dos resultados de desempenho, rendimento de carca?a e analise econ?mica. A utiliza??o do feno foi eficaz como medida de restri??o qualitativa da ra??o se houver inten??o de controle do crescimento do frango em fun??o de uma determinada idade de abate

Submitted by Sandra Pereira (srpereira@ufrrj.br) on 2018-09-19T12:12:01Z No. of bitstreams: 1 2010 - Rafael Sanches Pacheco.pdf: 669093 bytes, checksum: 3ca2e98e7a5ac781dba791f2e1bfda70 (MD5) / Made available in DSpace on 2018-09-19T12:12:01Z (GMT). No. of bitstreams: 1 2010 - Rafael Sanches Pacheco.pdf: 669093 bytes, checksum: 3ca2e98e7a5ac781dba791f2e1bfda70 (MD5) Previous issue date: 2010-08-10 / Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico, CNPq, Brasil. / Nutrient concentration in the seeds can affect the initial development, biological nitrogen fixation (BNF) and yield of plants. Common bean (Phaseolus vulgaris L.) has been considered as a species with low capacity of BNF as compared to other grain legumes, but results demonstrate the potential of BNF to supply the N demand of the crop and to achieve adequate yields. The objective of this study was to evaluate the effect of seed concentrations of Mo and P on biomass production, nodulation and grain yield of common bean at different sources of N supply. The field experiment was conducted between April and July 2009, in the Santa Monica Farm of Embrapa Gado de Leite in the municipality of Valen?a ? Rio de Janeiro State. The experimental design was a split-plot 4x4 factorial randomized block with 5 replicates. The main plots consisted of four N sources: control without N, mineral N fertilization with 20 kg N ha-1 at sowing + 40 kg N ha-1 in cover, inoculation with the commercial strain of rhizobia, rhizobia inoculation + 40 kg N ha-1 in cover. The subplots consisted of four combinations between concentrations of P and Mo in the seeds (low P low Mo, low P high Mo, Mo high P low, high-P high-Mo). The seeds of cultivar Carioca were originating from a field experiment when 5 kg P ha-1 and 120 g Mo ha-1 were foliar sprayed at 52 and 71 days after emergence (DAE). In each subplot, plant biomass were sampled at 30, 42 and 57 DAE, and root, shoot and nodules dry mass, the number of nodules and the accumulation of N in the shoot were determined. Grains were harvested at 90 DAE, and grain yield, yield components, N and Mo concentratios in the grains were measured. Interactions between the N sources and the concentrations of P and Mo in the seeds were not significant in the three sampling times, except for shoot dry mass and number of nodules at 57 DAE. Seeds with low P and high Mo increased shoot dry matter and grain yield of beans. Mineral N fertilizer increased root mass in the early growth stages. The rhizobia inoculation increased bean nodulation. There was a small effect of the seeds with high P concentration in the accumulation of N and mass of shoots at 57 DAE. Mineral N fertilizer increased N accumulation in the shoots at 57 DAE. The inoculation + 40 kg N ha-1 in cover gave similar grain yield and N accumulation as the application of 60 kg N ha-1, both treatments superior to the control. The use of seeds enriched with P and Mo, associated with the inoculation of seeds and the application of N in cover, could maximize the process of biological nitrogen fixation in the common bean crop. / A concentra??o de nutrientes nas sementes pode afetar o desenvolvimento inicial, a fixa??o biol?gica de nitrog?nio (FBN) e a produ??o de gr?os das plantas por elas geradas. O feijoeiro (Phaseolus vulgaris L.) tem sido considerado uma esp?cie de baixa capacidade de FBN em compara??o com outras leguminosas de gr?o, mas resultados demonstram o potencial da FBN em suprir a demanda de N do feijoeiro e obter boas produtividades. O objetivo deste estudo foi avaliar o efeito dos teores de P e Mo em sementes na produ??o de biomassa, nodula??o e no rendimento de gr?os de feijoeiro sob diferentes fontes de fornecimento de N. O experimento foi conduzido em condi??es de campo entre abril e julho de 2009, na Fazenda Santa M?nica da Embrapa Gado de Leite, no munic?pio de Valen?a ? RJ, em delineamento em blocos ao acaso em fatorial 4x4 com 5 repeti??es em parcelas subdivididas. As parcelas foram compostas por quatro fontes de N: testemunha absoluta sem N; aduba??o com N mineral com 20 kg N ha-1 no plantio + 40 kg N ha-1 em cobertura; inocula??o com a estirpe comercial de riz?bio recomendada para a cultura; inocula??o com estirpe comercial + 40 kg N ha-1 em cobertura. As subparcelas foram compostas por quatro combina??es entre teores de P e de Mo na semente (baixo P baixo Mo, baixo P alto Mo, alto P baixo Mo, alto P alto Mo). As sementes da cultivar Carioca utilizadas foram oriundas de um experimento de campo onde foram efetuadas aplica??es foliares com 5 kg P ha-1 e 120 g Mo ha-1 aos 52 e 71 dias ap?s emerg?ncia (DAE). Em cada subparcela foram efetuadas tr?s amostragens de biomassa, aos 30, 42 e 57 DAE, determinando-se a massa seca de raiz, parte a?rea e n?dulos, o n?mero de n?dulos e a acumula??o de N na parte a?rea. A colheita de gr?os foi efetuada aos 90 DAE, determinando-se o rendimento de gr?os, os componentes de produ??o e o teor de N e de Mo nos gr?os. As intera??es entre as fontes de N e os teores de P e Mo das sementes, nas tr?s ?pocas de coleta, n?o foram significativas, exceto para massa seca de parte a?rea e n?mero de n?dulos aos 57 DAE. As sementes com baixo P e alto Mo foram as que promoveram maior massa de parte a?rea e tamb?m a maior produ??o de gr?os de feij?o. A aduba??o com N mineral promoveu maior massa radicular nos est?gios iniciais de crescimento. A inocula??o das sementes com riz?bio aumentou a nodula??o do feijoeiro. Houve um pequeno efeito dos altos teores de P nas sementes na acumula??o de N e de biomassa da parte a?rea aos 57 DAE. A aplica??o de N mineral promoveu maior ac?mulo da N na parte a?rea aos 57 DAE. A inocula??o combinada com 40 kg N ha-1 em cobertura forneceu rendimento de gr?os e acumula??o de N nos gr?os similar ? aplica??o de 60 kg N ha-1, por sua vez superiores ? testemunha. O uso de sementes enriquecidas com P e Mo, associada com a inocula??o de sementes e a aplica??o de N em cobertura, podem maximizar o processo de fixa??o biol?gica de nitrog?nio na cultura do feijoeiro.