Submitted by Ricardo Cedraz Duque Moliterno (ricardo.moliterno@uefs.br) on 2015-08-07T22:20:38Z No. of bitstreams: 1 Patr?cia Oliveira Fiuza_DISSERTA??O.pdf: 30896151 bytes, checksum: b11de629f19a7cd5583ce2b2f1afbd36 (MD5) / Made available in DSpace on 2015-08-07T22:20:38Z (GMT). No. of bitstreams: 1 Patr?cia Oliveira Fiuza_DISSERTA??O.pdf: 30896151 bytes, checksum: b11de629f19a7cd5583ce2b2f1afbd36 (MD5) Previous issue date: 2013-03-26 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES / Ingoldian fungi are aquatic hyphomycetes that presents conidia sigmoid or branch and occur in lotic and lentic environment, being easily found in foam of water bodies. Aiming to contribute to the knowledge of the biodiversity of Ingoldian fungi in semiarid region, was conducted an inventory in water bodies of areas of extreme biological importance of the Brazilian semiarid. In a single expedition, samples of foam and submerged leaves were collected in water bodies of four localities in semiarid region (Brejo Paraibano-PB, Serra da Jib?ia-BA, Chapada do Araripe and Serra de Ibiapaba-CE). The samples of foam were collected and packaged in plastic bottles of 250 mL and the submerged leaves were packaged in plastic bags. In ?Laborat?rio de Micologia?(LAMIC), the foam was homogenized and 200 ?L of each sample were transferred to 30 slides, which were exposed at room temperature to evaporation. After evaporation, was addition of one drop of lactic acid and sealed with nail polish. Samples of submerged leaves were subjected to the technique of washing in flowing water and cut into pieces of 1 cm?, that were placed in petri dishes containing distilled sterile water for observation of fungi. The bottles and slides were deposited in the ?Herb?rio da Universidade Estadual de Feira de Santana? (HUEFS). The pure cultures were deposited in the ?Cole??o de Cultura de Micro-organismos da Bahia? (CCMB). The first chapter presents all 27 taxa of Ingoldian fungi found in the study, 23 of these taxa present description, geographic distribution, taxonomic comments and illustration; 22 are new records: american continent (3), Neotropics (1), South America (3), Brazil (5), Brazilian semiarid region (7), Cear? (2) and Para?ba (1). The second chapter shows all species of the genus Campylospora with descriptions, comments, geographical distribution, a key to the genus and illustrations. The water body with the highest number of taxa of Ingoldian fungi was the river Miss?o velha. / Os fungos ingoldianos s?o hifomicetos aqu?ticos que apresentam con?dios sigmoides ou ramificados e ocorrem em ambientes l?ticos e l?nticos, sendo encontrados facilmente nas espumas de corpos d??gua. Visando contribuir com o conhecimento da biodiversidade de fungos ingoldianos na regi?o semi?rida foi realizado um invent?rio em corpos d??gua de ?reas de extrema import?ncia biol?gica do semi?rido brasileiro. Em uma expedi??o, amostras de espuma e folhas submersas foram coletadas em corpos d??gua de quatro localidades na regi?o semi?rida (Brejo Paraibano-PB, Serra da Jib?ia-BA, Chapada do Araripe e Serra de Ibiapaba-CE). As amostras de espuma foram coletadas e acondicionadas em frascos pl?sticos de 250 mL e as amostras de folhas submersas foram acondicionadas em sacos pl?sticos. No Laborat?rio de Micologia (LAMIC), a espuma foi homogeneizada e 200 ?L de cada amostra foram transferidos para 30 l?minas, as quais ficaram expostas ? temperatura ambiente para evapora??o. Ap?s a evapora??o, foi adicionada uma gota de ?cido l?ctico e vedada com esmalte. Amostras de folhas submersas foram submetidas ? t?cnica de lavagem em ?gua corrente e cortadas em peda?os de 1 cm?, os quais foram colocados em placas de Petri com ?gua destilada esterilizada para observa??o dos fungos. Os frascos e l?minas foram depositados no Herb?rio da Universidade Estadual de Feira de Santana (HUEFS). As culturas puras foram depositadas na Cole??o de Cultura de Microrganismos da Bahia (CCMB). O primeiro cap?tulo apresenta todos os 27 t?xons de fungos ingoldianos encontrados no estudo, 23 destes t?xons apresentam descri??o, distribui??o geogr?fica, coment?rios taxon?micos e ilustra??o; 22 representam novos registros: continente americano (3), Neotr?pico (1), Am?rica do Sul (3), Brasil (5), regi?o semi?rida brasileira (7), Cear? (2), Para?ba (1). O segundo cap?tulo apresenta todas as esp?cies do g?nero Campylospora, com descri??es, coment?rios taxon?micos, distribui??o geogr?fica, chave taxon?mica para o g?nero e ilustra??es. O corpo d? ?gua que apresentou o maior n?mero de t?xons de fungos ingoldianos foi o rio Miss?o Velha.

Made available in DSpace on 2014-12-17T15:54:55Z (GMT). No. of bitstreams: 1 AnaCLP_DISSERT_pagina 1_a_8.pdf: 8605712 bytes, checksum: a23b0324901ca6ee088750e19d1a57c3 (MD5) Previous issue date: 2009-04-24 / Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico / Density and biomass of bacterioplankton in parts of the Marechal Dutra reservoir were studied in periods of dry and rainy season. The averages of the total bacterial densities oscillated in the order of 107 organisms/ mL of sample. The cocci cells were numerically predominant, influencing considerably the total abundance of the bacterioplankton. The total bacterial biomass, was considered raised and varied from 2.431,82 to 2.739,01 ?gC.L-1, in function of the high values of biovolume of the filaments forms, and showed no marked spacial fluctuation. These high values of density and biomass alert for the necessity of a frequent monitoring of aquatic ecosystems of semi-arid region, where the quality of the water is affected by the occurrence of extensive dry periods, influencing considerably the quality of life of its population / Foram estudadas a densidade e a biomassa do bacteriopl?ncton nos per?odos seco e chuvoso em dois pontos do A?ude Marechal Dutra. As m?dias das densidades bacterianas totais oscilaram na ordem de 107 organismos por mL de amostra. As c?lulas em forma de cocos foram numericamente predominantes, influenciando consideravelmente a abund?ncia total do bacteriopl?ncton. A biomassa bacteriana total foi considerada elevada, variando de 2.431,82 a 2.739,01 ?gC.L-1 , em fun??o dos altos valores de biovolume dos filamentos. N?o foram encontradas varia??es espaciais nem sazonais marcantes. Os altos valores de densidade e biomassa encontrados alertam para a necessidade de um freq?ente monitoramento dos ecossistemas aqu?ticos de regi?o semi-?rida onde a qualidade da ?gua ? afetada pela ocorr?ncia de extensos per?odos de estiagem que influenciam a qualidade de vida de sua popula??o

Made available in DSpace on 2014-12-17T15:55:04Z (GMT). No. of bitstreams: 1 MycarlaNRS_DISSERT.pdf: 3216830 bytes, checksum: 07e1141d9905a390774485aa58ed8641 (MD5) Previous issue date: 2013-02-25 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior / For many decades the problematic raised about the indiscriminate use of pesticides in modern agriculture has incited the interest of many researchers to discover the effects caused by such products in the environment and consequently in the life of the ones which use that products (farmers) and those people who live in places next to the agricultural areas. Facing these facts, this research had the intention of comprehend the environmental perception of habitants of the Distrito Irrigado do Baixo-A?u (DIBA), located in the semiarid of Rio Grande do Norte, by using agro toxics and its possible environmental effects, as well as evaluate the levels of toxicity of waters from agricultural runoff in this region by using eco-toxicological exams with Ceriodaphnia silvestii. Were done 86 interviews with dwellers and farmers from DIBA. With the results reached in the evaluation of the interviews it was possible to identify that one of major problems is the inappropriate discard of empty packs of the pesticides used at that place. The samples collected for eco-toxicological evaluation showed a variation in its toxicity, once that the point of collect which receives waters from different cultures presented in four out of five samples toxicity for the tested species. Therefore, it concludes that the indiscriminate use of pesticides agricultural practice presented a potential to pollute to the irrigation waters, and the absence of elucidation by the farmers about the manipulation of these products contribute to the risk of environmental contamination and the possible decrease of the quality of life of the dwellers of the region / H? d?cadas a problem?tica levantada sobre o uso indiscriminado de pesticidas pela agricultura moderna tem despertado o interesse de muitos pesquisadores na busca dos efeitos causados por tais produtos no meio ambiente e, consequentemente na vida tanto daqueles que fazem uso destes produtos (agricultores) quanto aqueles indiv?duos que residem em regi?es pr?ximas a ?reas agr?colas. Diante disto, esta pesquisa teve o objetivo de compreender a percep??o ambiental de moradores do Distrito Irrigado do Baixo-A?u (DIBA), localizado no semi?rido norteriogradense, frente ao uso de agrot?xicos e seus poss?veis efeitos ambientais, bem como avaliar o grau de toxicidade de ?guas do escoamento agr?cola nesta regi?o atrav?s de testes ecotoxicolol?gicos com Ceriodaphnia silvestii. Um total de 86 entrevistas foi realizado com moradores e agricultores do DIBA. Com os resultados obtidos na avalia??o das entrevistas foi poss?vel identificar que um dos maiores problemas ? o descarte inadequado das embalagens vazias dos pesticidas utilizados no local. J? as amostras coletadas para avalia??o ecotoxicol?gica mostraram varia??o em sua toxicidade, sendo visto que o ponto de coleta que recebe ?guas de diferentes culturas apresentou em quatro das cinco amostras toxicidade para a esp?cie testada. Diante disto conclui-se que a utiliza??o indiscriminada de agrot?xicos pela pr?tica agr?cola apresentou potencial poluidor para ?guas de irriga??o, e que a falta de esclarecimento dos agricultores sobre a manipula??o destes produtos contribuem para o riso de contamina??o ambiental e poss?vel diminui??o da qualidade de vida dos moradores da regi?o

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2016-03-02T23:01:37Z No. of bitstreams: 1 LuisRodrigoDantasDaSilva_DISSERT.pdf: 3337264 bytes, checksum: 12bf45680028c13cc7309fd035a25130 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2016-03-04T21:44:43Z (GMT) No. of bitstreams: 1 LuisRodrigoDantasDaSilva_DISSERT.pdf: 3337264 bytes, checksum: 12bf45680028c13cc7309fd035a25130 (MD5) / Made available in DSpace on 2016-03-04T21:44:43Z (GMT). No. of bitstreams: 1 LuisRodrigoDantasDaSilva_DISSERT.pdf: 3337264 bytes, checksum: 12bf45680028c13cc7309fd035a25130 (MD5) Previous issue date: 2014-05-30 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES / Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico - CNPq / O entendimento da ocorr?ncia e fluxo de ?guas subterr?neas em subsuperf?cie ? de fundamental import?ncia na explota??o de ?guas, assim como o conhecimento de toda contextualiza??o hidrogeol?gica associada. Estes fatores s?o controlados essencialmente pela geometria de um determinado sistema poroso, considerando-se aqu?feros de natureza sedimentar. Desta forma, a caracteriza??o microestrutural, assim como a interconectividade do sistema, ? imprescind?vel para o conhecimento das propriedades macros da porosidade e permeabilidade de rochas reservat?rio, nas quais podem ser feitas sobre uma caracteriza??o estat?stica atrav?s da an?lise bidimensional. Esta ?ltima est? sendo realizada em uma plataforma computacional, utilizando-se imagem de l?minas delgadas da rocha reservat?rio, possibilitando a predi??o das propriedades porosidade eficaz e condutividade hidr?ulica. Para o Aqu?fero Barreiras, a obten??o de tais par?metros decorre essencialmente da interpreta??o de testes de aqu?feros, pr?tica que normalmente envolve uma log?stica bastante complexa em termos de equipamentos e pessoal requeridos, al?m de elevado custo de opera??o. Desta forma, a an?lise e processamento digital de imagem apresenta-se como uma ferramenta alternativa para a caracteriza??o de par?metros hidr?ulicos, mostrando-se como um m?todo pr?tico e pouco dispendioso. Essa metodologia est? fundamentada em um fluxograma de trabalho envolvendo amostragem, elabora??o de l?minas delgadas e suas respectivas imagens, segmenta??o e caracteriza??o geom?trica, reconstru??o tridimensional e simula??o de fluxo. Na presente pesquisa, as an?lises computacionais de imagens de l?minas delgadas de rochas do referido aqu?fero tem evidenciado coeficientes de armazenamento variando de 0,035 a 0,12 com m?dias de 0,076, enquanto que seu substrato hidrogeol?gico (associado com o topo da sequ?ncia carbon?tica n?o aflorante na regi?o) apresenta porosidades efetivas da ordem de 2%. Para o regime de transporte, ? constatado que a metodologia apresenta resultados abaixo daqueles encontrados nos dados bibliogr?ficos referentes ? condutividade hidr?ulica, obtendo valores m?dios de 1,04x10-6 m/s, com flutua??es entre 2,94x10-6 m/s e 3,61x10-8 m/s, provavelmente relacionado ao tamanho da escala em estudo e as heterogeneidades do meio pesquisado. / The understanding of the occurrence and flow of groundwater in the subsurface is of fundamental importance in the exploitation of water, just like knowledge of all associated hydrogeological context. These factors are primarily controlled by geometry of a certain pore system, given the nature of sedimentary aquifers. Thus, the microstructural characterization, as the interconnectivity of the system, it is essential to know the macro properties porosity and permeability of reservoir rock, in which can be done on a statistical characterization by twodimensional analysis. The latter is being held on a computing platform, using image thin sections of reservoir rock, allowing the prediction of the properties effective porosity and hydraulic conductivity. For Barreiras Aquifer to obtain such parameters derived primarily from the interpretation of tests of aquifers, a practice that usually involves a fairly complex logistics in terms of equipment and personnel required in addition to high cost of operation. Thus, the analysis and digital image processing is presented as an alternative tool for the characterization of hydraulic parameters, showing up as a practical and inexpensive method. This methodology is based on a flowchart work involving sampling, preparation of thin sections and their respective images, segmentation and geometric characterization, three-dimensional reconstruction and flow simulation. In this research, computational image analysis of thin sections of rocks has shown that aquifer storage coefficients ranging from 0,035 to 0,12 with an average of 0,076, while its hydrogeological substrate (associated with the top of the carbonate sequence outcropping not region) presents effective porosities of the order of 2%. For the transport regime, it is evidenced that the methodology presents results below of those found in the bibliographic data relating to hydraulic conductivity, mean values of 1,04 x10-6 m/s, with fluctuations between 2,94 x10-6 m/s and 3,61x10-8 m/s, probably due to the larger scale study and the heterogeneity of the medium studied.

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2016-06-23T20:18:46Z No. of bitstreams: 1 BrunoFreitasCardoso_DISSERT.pdf: 2542892 bytes, checksum: f8ca3fdc1914ca6dd06fa4b29fdc6892 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2016-06-27T20:50:58Z (GMT) No. of bitstreams: 1 BrunoFreitasCardoso_DISSERT.pdf: 2542892 bytes, checksum: f8ca3fdc1914ca6dd06fa4b29fdc6892 (MD5) / Made available in DSpace on 2016-06-27T20:50:58Z (GMT). No. of bitstreams: 1 BrunoFreitasCardoso_DISSERT.pdf: 2542892 bytes, checksum: f8ca3fdc1914ca6dd06fa4b29fdc6892 (MD5) Previous issue date: 2015-12-28 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (CAPES) / Um tipo de solu??o de macrodrenagem largamente utilizado em ?reas com predomin?ncia de bacias fechadas (bacias sem exut?rios) ? a implanta??o de lagoas de deten??o e infiltra??o (LDI). Este tipo de solu??o tem como principal fun??o realizar o armazenamento de defl?vios superficiais e promover sua infiltra??o e consequentemente, promover a recarga do aqu?fero, quando existente. ? a pr?tica para se evitar inunda??es nos baixios da bacia de drenagem. A impermeabiliza??o da bacia reduz a recarga distribu?da de aqu?feros fre?ticos como a existente na cidade de Natal, RN. No entanto, a presen?a da LDI traz a vantagem de concentrar os defl?vios e promover uma recarga pontual que pode superar a recarga natural distribu?da. Neste trabalho se prop?s estudar uma pequena bacia de drenagem urbana, a bacia experimental de Mirassol (BEM), em Natal, RN, que tem como exut?rio uma LDI. Os processos de transforma??o da chuva em vaz?o, a acumula??o de ?gua na LDI e o processo de infiltra??o e percola??o no perfil do solo at? o len?ol fre?tico foram modelados e, atrav?s de observa??es dos eventos chuvosos, n?veis de ?gua na lagoa e do len?ol fre?tico, assim com levantamento de par?metros, possibilitaram a modelagem desses processos combinados. A modelagem matem?tica foi realizada a partir de dois modelos num?ricos. Foi utilizado o modelo de transforma??o da chuva em vaz?o, idealizado por RIGHETTO (2014), e, tamb?m, desenvolvido um modelo unidimensional que permite simular o processo de percola??o em condi??o de solo insaturado acoplado ao balan?o h?drico da LDI. Foi realizada a simula??o cont?nua ao longo de um per?odo de dezoito meses, com intervalos de tempo de um minuto. A BEM foi discretizada em quadras e trechos de rua e o perfil do solo em c?lulas verticais de 2 cm para um profundidade total de 30 m. Os hidrogramas gerados foram transformados em volumes afluentes ? lagoa. Na lagoa foi realizado o balan?o h?drico nesses intervalos de tempo, considerando-se a infiltra??o e percola??o de ?gua no perfil do solo. Como resultado, obteve-se a avalia??o da LDI no processo de armazenamento de ?gua, assim como a infiltra??o, redistribui??o de ?gua no solo e a recarga ao aqu?fero fre?tico, possibilitando simular a sequ?ncia temporal de distribui??o. Com as simula??es realizadas, verificou-se o desempenho da LDI na absor??o de cheias e sua contribui??o no processo de recarga local do aqu?fero (Aqu?fero Dunas / Barreiras). / A type of macro drainage solution widely used in urban areas with predomi-nance of closed catchments (basins without outlet) is the implementation of detention and infiltration reservoirs (DIR). This type of solution has the main function of storing surface runoff and to promote soil infiltration and, consequently, aquifer recharge. The practice is to avoid floods in the drainage basin low-lying areas. The catchment waterproofing reduces the distributed groundwater recharge in urban areas, as is the case of Natal city, RN. However, the advantage of DIR is to concentrate the runoff and to promote aquifer recharge to an amount that can surpass the distributed natu-ral recharge. In this paper, we proposed studying a small urban drainage catchment, named Experimental Mirassol Watershed (EMW) in Natal, RN, whose outlet is a DIR. The rainfall-runoff transformation processes, water accumulation in DIR and the pro-cess of infiltration and percolation in the soil profile until the free aquifer were mod-eled and, from rainfall event observations, water levels in DIR and free aquifer water level measurements, and also, parameter values determination, it is was enabled to calibrate and modeling these combined processes. The mathematical modeling was carried out from two numerical models. We used the rainfall-runoff model developed by RIGHETTO (2014), and besides, we developed a one-dimensional model to simu-late the soil infiltration, percolation, redistribution soil water and groundwater in a combined system to the reservoir water balance. Continuous simulation was run over a period of eighteen months in time intervals of one minute. The drainage basin was discretized in blocks units as well as street reaches and the soil profile in vertical cells of 2 cm deep to a total depth of 30 m. The generated hydrographs were transformed into inlet volumes to the DIR and then, it was carried out water balance in these time intervals, considering infiltration and percolation of water in the soil profile. As a re-sult, we get to evaluate the storage water process in DIR as well as the infiltration of water, redistribution into the soil and the groundwater aquifer recharge, in continuous temporal simulation. We found that the DIR has good performance to storage excess water drainage and to contribute to the local aquifer recharge process (Aquifer Dunas / Barreiras).

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2016-07-25T19:35:25Z No. of bitstreams: 1 RafaelaDaSilvaAlves_DISSERT.pdf: 19927301 bytes, checksum: 8c1484fa0f5034747a0216799c271cc8 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2016-08-01T18:59:08Z (GMT) No. of bitstreams: 1 RafaelaDaSilvaAlves_DISSERT.pdf: 19927301 bytes, checksum: 8c1484fa0f5034747a0216799c271cc8 (MD5) / Made available in DSpace on 2016-08-01T18:59:08Z (GMT). No. of bitstreams: 1 RafaelaDaSilvaAlves_DISSERT.pdf: 19927301 bytes, checksum: 8c1484fa0f5034747a0216799c271cc8 (MD5) Previous issue date: 2015-08-21 / A ?rea de estudo est? inserida na Bacia Hidrogr?fica do Rio Pirangi, litoral Oriental do Estado do Rio Grande do Norte, onde est? situada a cidade de Parnamirim. Abrange uma superf?cie de 370 Km?. A expans?o urbana do munic?pio de Parnamirim tem se desenvolvido de forma muito acelerada sem uma estrutura adequada, notadamente pela aus?ncia de rede esgotos, com riscos de contamina??o das ?guas subterr?neas podendo causar s?rios danos ? sa?de p?blica. As ?guas subterr?neas do Sistema Aqu?fero Barreiras na ?rea de interesse constituem a principal fonte de suprimento h?drico das popula??es urbanas e rurais. O uso da ?gua subterr?nea ? feito sem planejamento adequado e assim, importantes ?reas de recarga est?o sendo ocupadas. O presente estudo foi desenvolvido para a quantifica??o do uso e avalia??o das potencialidades das ?guas subterr?neas, tendo em vista o aumento da oferta de ?gua de boa qualidade e com menores riscos de serem afetadas por atividades contaminantes. Com estes objetivos, foram desenvolvidas as seguintes atividades: cadastro de 268 pontos d??gua; caracteriza??o da litologia, espessuras e estrutura hidrogeol?gica do aqu?fero Barreiras, com base na correla??o de perfis de po?os; e, avalia??o de par?metros hidrodin?micos do aqu?fero, a partir da interpreta??o de resultados de testes de bombeamento de po?os. Verificou-se que a espessura saturada cresce de oeste para leste em dire??o ao mar, com valores que variam de 15,47 a 56,5 m, com m?dia de 32,45 m. Os par?metros hidrodin?micos, obtidos com aplica??o do m?todo de Cooper-Jacob foram: transmissividade m?dia de 5,9x10-3 m?/s e a condutividade hidr?ulica m?dia de 2,82x10-4 m/s. A porosidade espec?fica ? de 15%, obtida com aplica??o da equa??o Biecinski. O mapa potenciom?trico mostra a dire??o principal do fluxo subterr?neo, de oeste para leste, e permite identificar as zonas de recarga correspondentes a regi?o dos tabuleiros do ?Barreiras?. Os vales dos rios referem-se ?s zonas de descarga do sistema aqu?fero. A Recarga foi estimada em 253 mm/ano, que corresponde ? taxa de infiltra??o de 16,4%. / The study area is within the Pirangi River Basin, eastern sector of Rio Grande do Norte state, where is located of the Parnamirim city. It has an area of approximately 370 km?. Urbanization has developed much fast without an appropriate infrastructure, mainly by the lack of sewage systems, with risks of contamination of groundwater that may cause serious damage to the health of the population. The Barreiras Aquifer System groundwater in the area represents the main source of water supply for urban and rural populations. The use of groundwater occurs without adequate planning and therefore, important recharge areas are being occupied. This study was conducted to quantify the use and evaluation of the potential of groundwater, in order to increase good water quality supply and lower risks of being affected by polluting activities. With these objectives, the following activities were carried out: 268 points of water have been registered; characterization of the lithological, thickness and hydrogeological structure of the Barreiras aquifer, based on the correlation of well logs; and evaluation of hydrodynamic parameters of the aquifer, from the interpretation of results well pumping tests. It was found that the saturated thickness increases from west to east towards the sea, with values ranging from 15,47-56,5 m with an average of 32,45 m. The hydrodynamic parameters using Cooper-Jacob method were: average transmissivity of 5,9x10-3 m?/s and average hydraulic conductivity 2,82x10-4 m/s. The effective porosity is of 15%, obtained by applying Biecinski equation. The potentiometric map shows the main direction of groundwater flow, from west to east, and identifies the recharge areas corresponding to the region of the tablelands of the "Barreiras". The river valleys refer to the discharge areas of the aquifer system. The Recharge was estimated at 253 mm/year, which corresponds to the 16.4% rate of infiltration.

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2016-10-11T23:01:26Z No. of bitstreams: 1 ErmetonDuarteDoNascimento_TESE.pdf: 7719427 bytes, checksum: b84ff037c2d66bf7a8b825c76b7b9db3 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2016-10-18T00:19:26Z (GMT) No. of bitstreams: 1 ErmetonDuarteDoNascimento_TESE.pdf: 7719427 bytes, checksum: b84ff037c2d66bf7a8b825c76b7b9db3 (MD5) / Made available in DSpace on 2016-10-18T00:19:26Z (GMT). No. of bitstreams: 1 ErmetonDuarteDoNascimento_TESE.pdf: 7719427 bytes, checksum: b84ff037c2d66bf7a8b825c76b7b9db3 (MD5) Previous issue date: 2016-04-29 / Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico (CNPq) / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (CAPES) / A resist?ncia aos antimicrobianos se transformou num s?rio problema de sa?de p?blica mundial e v?rios ambientes aqu?ticos se apresentam contaminados por esses microrganismos. Entretanto, n?o h? dados sobre esse fen?meno para o semi?rido brasileiro. Sendo assim, este estudo teve como objetivo o isolamento e a identifica??o das bact?rias de import?ncia m?dica contaminantes de ambientes qu?ticos no semi?rido potiguar, a caracteriza??o da resist?ncia antimicrobiana, e a formula??o de propostas para educa??o em sa?de e a??es para vigil?ncia ambiental em sa?de. Com este prop?sito foram coletadas amostras de ?gua de quatro reservat?rios do semi?rido potiguar durante os per?odos seco e chuvoso. As amostras foram processadas e os microrganismos foram isolados e identificados seguindo orienta??es de bibliografias especializadas. Em seguida foram realizados os testes de sensibilidade antimicrobiana em disco difus?o, calculado o ?ndice de m?ltipla resist?ncia antibi?tica (MAR) e classificados os organismos com multipla resist?ncia ?s drogas (MDR). Tamb?m foram propostas a??es para preven??o e educa??o em sa?de, bem como para vigil?ncia ambiental em sa?de. Adicionalmente, foi avaliada, na Universidade de Minnesota, nos Estados Unidos, a influ?ncia da concentra??o do f?sforo em meio l?quido (caldo nutriente, C:P 100:1, 1000:1 e 100.000:1) sobre a expres?o fenot?pica da resist?ncia ? tetraciclina, ao cloranfenicol e a eritromicina, de 41 cepas bacterianas dos Estados Unidos utilizando a t?cnica da Concentra??o Inibit?ria M?nima (CIM) e da Concentra??o Bactericida M?nima (CBM). Ao todo foram isoladas 168 bact?rias, 56% no per?odo chuvoso, com 97,6% pertecentes ao grupo das Gram-negativas, com a Fam?lia Enterobacteriaceae apresentando a maior preval?ncia entre esse grupo (73,2%). 95,3% das bact?rias resistentes aos antimicrobianos foram isoladas durante o per?odo seco e o ?ndice MAR foi maior no reservat?rio Passagem das Tra?ras, com 56% de chance para que as bact?rias encontradas na ?gua desse reservat?rio procedam de uma fonte de contamina??o com maior risco para a sa?de humana. N?o houve diferen?a estat?stica da ocorr?ncia de g?neros e esp?cies bacterianos entre os per?odos seco e chuvoso e nem entre os reservat?rios, com p=0,255. Tamb?m n?o houve diferen?a estat?stica do ?ndice MAR entre os per?odos e os reservat?rios, com p=0,224. Quando avaliada a CIM, o meio com C:P de 100.000:1, considerado com a menor concentra??o de f?sforo, parece aumentar a sensibilidade das bact?rias ao cloranfenicol e a eritromicina quando comparado aos resultados do caldo nutriente para os mesmos antimicrobianos, com um p=0,023. Nas escolas que atendem as comunidades ribeirinhas usu?rias da ?gua dos reservat?rios, s?o propostas a??es de educa??o em sa?de que visem o levantamento de concep??es sobre o conhecimento do uso dos antimicrobianos e do surgimento da resist?ncia bacteriana a essas drogas, bem como o desenvolvimento de material para educa??o em sa?de. E no n?cleo de Vigil?ncia Ambiental em Sa?de da SESAP, s?o propostas a inclus?o das bact?rias resistentes aos antimicrobianos isoladas de ambientes aqu?ticos como indicadores de risco para a sa?de p?blica, a formula??o de pol?ticas p?blicas visando o controle das atividades que contaminam esses recursos com esses organismos e tamb?m o monitoramento peri?dico da ?gua dos diversos ambientes aqu?ticos. / Bacterial resistance to antimicrobials became a serious public health problem around the world, and different aquatic environments are contaminated with these organisms. However, there is no data about this phenomenon in the Brazilian semiarid region. Therefore, this study had as main the isolation and identification of contaminant harmful bacteria of potiguar semiarid aquatic environments, characterization of antimicrobial resistance, development of proposals in health education and actions for environmental health surveillance. With this purpose were collected water samples from four potiguar semiarid reservoirs during dry and rainy season. Those samples were analyzed and microorganisms were isolated and identified following specialized literature orientation. Then antimicrobials susceptibility disk diffusion test were performed, Multiple Antibiotic Resistance (MAR) index was calculated, and Multiple Drug Resistance (MDR) classification was used. Also were proposed actions for health prevention and education. In addiction, was evaluated, in Minnesota University/United States of America, the influence of phosphorus concentration in broth medium (Nutrient broth, 100:1, 1000:1 and 100.000:1 C:P ratio) over phenotypic resistance expression to tetracycline, chloramphenicol and erythromycin in 41 American aquatic bacterial strains by using Minimal Inhibitory Concentration (MIC) and Minimal Bactericidal Concentration (MBC) techniques. Altogether were isolated 168 bacteria from the Brazilian semiarid reservoirs, 56% in rainy season, with 97,6% from Gram-negative group, and 73,2% from Enterobacteriaceae Family. Ninety five point three percent of antimicrobial resistant bacteria were isolated during dry season and MAR index was higher for Passagem das Tra?ras reservoir, with 56% of chance that bacteria found in that reservoir has proceeded from high risk source of contamination for human health. There were no statistical differences of bacterial genera and species occurrence between dry and rainy season nor between reservoirs, with p=0,255. Also, there were no statistical differences in MAR index between seasons nor between reservoirs, with p=0,244. When MIC was evaluated, the 100.000:1 C:P ratio medium, considered the one with lower concentration of phosphorus, seemed to increase bacterial susceptibility to chloramphenicol and erythromycin when comparing to nutrient broth results for the same antimicrobials, with p=0,023. At schools that serve riverine communities water reservoirs user were proposed activities for health education aiming describe conceptions about antimicrobial use knowledge and the emergency of bacterial resistance to those drugs, as well as the development of materials for health education. At SESAP Environmental Health Surveillance group were proposed inclusion of antimicrobial resistant bacteria isolated in aquatic environments as indicator of risk for public health, as well as formulation of public policies to control activities that contaminate these sources with those organisms, and also the water periodic monitoring of several aquatic environments.

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2017-04-03T21:15:21Z No. of bitstreams: 1 MauriloGoncalvesBragaJunior_DISSERT.pdf: 8769119 bytes, checksum: e351abbadca543f896ba48254b1921fb (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2017-04-07T21:40:50Z (GMT) No. of bitstreams: 1 MauriloGoncalvesBragaJunior_DISSERT.pdf: 8769119 bytes, checksum: e351abbadca543f896ba48254b1921fb (MD5) / Made available in DSpace on 2017-04-07T21:40:50Z (GMT). No. of bitstreams: 1 MauriloGoncalvesBragaJunior_DISSERT.pdf: 8769119 bytes, checksum: e351abbadca543f896ba48254b1921fb (MD5) Previous issue date: 2016-12-16 / A avalia??o do comportamento hidrodin?mico e hidroqu?mico de aqu?feros em ?reas sob a influ?ncia da atividade petrol?fera s?o essenciais para a prote??o e gest?o do recurso h?drico subterr?neo. Neste sentido, s?o analisadas neste trabalho as rela??es entre as cargas hidr?ulicas dos aqu?feros Barreiras-Janda?ra e A?u na ?rea de Fazenda Bel?m, setor oeste da Bacia Potiguar, Estado do Cear?, e suas implica??es na qualidade das ?guas subterr?neas. Foram definidas as superf?cies potenciom?tricas das unidades aqu?feras Barreiras-Jandaira e A?u em diferentes per?odos desde seu estado original, antes da influ?ncia da atividade petrol?fera, at? os dias atuais, bem como identificadas as modifica??es hidroqu?micas nessas unidades ao longo desse per?odo. Foi poss?vel concluir que os aqu?feros A?u e Barreiras-Janda?ra correspondem a sistemas aqu?feros individualizados e sem comunica??o hidr?ulica entre si. Os tipos hidroqu?micos distintos definidos para as ?guas dos dois sistemas aqu?feros ratificam o isolamento hidr?ulico caracterizado, sugerindo a inexist?ncia de mistura de ?guas entre os mesmos, desde seu estado original at? o presente. O estudo constatou ainda um rebaixamento localizado da superf?cie potenciom?trica do Aqu?fero A?u, o que aponta para a necessidade de se propor medidas de controle, mediante o monitoramento cont?nuo dos n?veis d??gua desse aqu?fero e da qualidade de suas ?guas / The evaluation of the hydrodynamic and hydrochemistry behavior of the aquifers in areas under the influence of the oil exploration activity is essential to the protection and management of the groundwater resource. In this sense, were analyzed in this work the relationship between hydraulic loads of aquifers Barreiras-Janda?ra and A?u, in the oil production concession area of Fazenda Bel?m, West sector of the Potiguar Basin, State of Cear?, and its implications on the quality of groundwater. The A?u Aquifer is composed by Units 2 and 3 of A?u Formation, composed predominantly of thick sandstones at the base, with decreasing grain size to the top, with metrics and decimetrics beds of mudstone and silt. On top of the A?u Aquifer occurs a 70 meters thick package of mudstone and silt of Unit 4 of A?u Formation, which covers and seals the Units 2 and 3 of A?u Aquifer, giving a confined character to it. The Aquifer system Barreiras-Janda?ra is represented by sandstones and conglomerates of the Barreiras Formation and Quaternary Sediments, which cover the carbonates of Janda?ra Formation (packstones and wackstones) and expose the groundwater of this Aquifer at atmospheric pressure. The potentiometric surfaces of the two aquifers systems for different periods, since its original state, before the influence of the oil exploration activity, until the present day were set, as well the variations in hydrochemistry of these units, throughout this period and the saturated thickness of the two Aquifer units. With this amount of information is possible to presume that the A?u and Barreiras?Janda?ra aquifers correspond to individual aquifers systems without hydraulic communication with each other. The distinct water chemical classes of the two aquifers confirm the isolation between them indicating the absence of water mix between the two systems, since its original state until the present. The study has identified a local fall in the potentiometric surface of the A?u aquifer, which points to the need to propose measures of control, through the continuous monitoring of water levels of the aquifer and the quality of its waters.

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2017-04-03T21:15:21Z No. of bitstreams: 1 RenanDaCostaOliveira_DISSERT.pdf: 7111395 bytes, checksum: 623f2ac2cda2fc27ac0ceda280b46337 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2017-04-07T22:14:15Z (GMT) No. of bitstreams: 1 RenanDaCostaOliveira_DISSERT.pdf: 7111395 bytes, checksum: 623f2ac2cda2fc27ac0ceda280b46337 (MD5) / Made available in DSpace on 2017-04-07T22:14:15Z (GMT). No. of bitstreams: 1 RenanDaCostaOliveira_DISSERT.pdf: 7111395 bytes, checksum: 623f2ac2cda2fc27ac0ceda280b46337 (MD5) Previous issue date: 2016-08-29 / A ?rea de estudo localiza-se na regi?o do munic?pio de Bara?na-RN, extremo oeste do Estado do Rio Grande do Norte. Abrange uma superf?cie de 675 Km?, incluindo o Munic?pio de Bara?na, e parte dos munic?pios de Quixer?-CE e Mossor?-RN. O aqu?fero Janda?ra constitui a unidade hidrogeol?gica objeto deste trabalho. Trata-se de um aqu?fero de rochas carbon?ticas utilizado no suprimento h?drico da popula??o urbana (Bara?na) e rural, principalmente da fruticultura irrigada. O objetivo do trabalho ? avaliar o comportamento hidrogeol?gico do aq??fero c?rstico Janda?ra, verificar suas condi??es de utiliza??o, avaliar o car?ter de fluxo subterr?neo, propor o modelo conceitual, al?m de responder a questionamentos sobre o rebaixamento dos n?veis de ?gua. Para isso, foi realizado o levantamento dos dados existentes para a ?rea, a elabora??o de mapas e interpreta??o de imagens, a elabora??o de perfis de po?os, o levantamento de par?metros hidrodin?micos, a avalia??o do fluxo subterr?neo, a avalia??o de recarga e gera??o do modelo conceitual esquem?tico. Com base em dados existentes, a ?rea foi subdividida em tr?s zoneamentos quanto a carstifica??o e identificados por m?todos geof?sicos e esquematizado no modelo conceitual com o auxilio de mapas de estruturas, perfis de po?os e identifica??o de carstes na regi?o. A ?rea possui forte explota??o das ?guas do aqu?fero Janda?ra com utiliza??o principalmente na fruticultura irrigada como mostrou o estudo de utiliza??o das ?guas na regi?o. Tamb?m foram elaboradas as estimativas de reservas com base na varia??o de n?vel da ?gua em po?os selecionados. Os estudos referentes ao fluxo subterr?neo mostraram uma tend?ncia natural de fluxo na dire??o SW-NE, por?m a forte influ?ncia da explota??o das ?guas provocou uma converg?ncia para o setor central da ?rea. A constru??o do modelo conceitual esquem?tico visou identificar as diferentes estruturas apresentadas pelo aqu?fero na regi?o, mostrando a varia??o no desenvolvimento c?rstico. O c?lculo de recarga mostrou o alto potencial do aqu?fero Janda?ra, com rendimento m?dio de 45%, a an?lise dos registros de chuvas e n?veis est?ticos mostrou que a causa para o rebaixamento das ?guas subterr?neas possui dois fatores importantes: a forte explota??o das ?guas aliada as secas prolongadas. / The study area is located in the region of Bara?na-RN city, extreme West of the State of Rio Grande do Norte. It covers an area of 675 square kilometers, including the Municipality of Bara?na, and part of the municipalities of Quixer?-CE and Mossoro-RN. The Janda?ra aquifer constitutes the hydrogeological unit and it is the object of this work. It is an aquifer of carbonate rocks used in the water supply of urban and rural population, mainly of the irrigated fruit-growing. The objective of this work is to evaluate the hydrogeological behavior of the Janda?ra karst aquifer, to verify its conditions of use, to evaluate the underground flow character, to propose the conceptual model, and to answer questions about the lowering of water levels. For this, was performed the survey of the existing data for the area, the elaboration of maps and interpretation of images, the elaboration of well profiles, the hydrodynamic parameters survey, the underground flow evaluation, the recharge evaluation and generation of the model conceptual schematic. Based on existing data, the area was subdivided into three zoning for karstfication and identified by geophysical methods and schematized in the conceptual model with the aid of structure maps, well profiles and identification of karst in the region. The area has strong exploitation of the water of the Janda?ra aquifer with use mainly in irrigated fruit-growing as shown by the study of water use in the region. Also were prepared the reserves estimates based on the water level variation in selected wells. The related studies to underground flow showed a natural flow tendency in the SW-NE direction, but the strong influence of the water exploitation caused a convergence for the central sector of the area. The construction of the conceptual schematic model aimed to identify the different structures presented by the aquifer in the region, showing the variation in karstic development. The recharge calculation showed the high potential of the Janda?ra aquifer, with an average yield of 45%, the analysis of rainfall records and static levels showed that the cause for groundwater retraction has two important factors: The strong exploitation of the waters combined with the prolonged droughts.

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2017-07-03T13:49:24Z No. of bitstreams: 1 RenatoDeSouzaArruda_DISSERT.pdf: 10252743 bytes, checksum: 13ba4780aafe9e605d95a0d7755595a5 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2017-07-07T14:58:37Z (GMT) No. of bitstreams: 1 RenatoDeSouzaArruda_DISSERT.pdf: 10252743 bytes, checksum: 13ba4780aafe9e605d95a0d7755595a5 (MD5) / Made available in DSpace on 2017-07-07T14:58:37Z (GMT). No. of bitstreams: 1 RenatoDeSouzaArruda_DISSERT.pdf: 10252743 bytes, checksum: 13ba4780aafe9e605d95a0d7755595a5 (MD5) Previous issue date: 2017-03-09 / Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico (CNPq) / A avalia??o integrada de vulnerabilidade intr?nseca de um aqu?fero constitui uma ferramenta de suma import?ncia como subs?dio ao estabelecimento de pol?ticas p?blicas de preserva??o, prote??o e uso hidroambiental sustent?vel de um manancial subterr?neo. Nesse aspecto, o presente trabalho teve como escopo principal a elabora??o de mapeamentos de vulnerabilidade a partir de dados hidrogeof?sicos, objetivando a identifica??o e delimita??o de sub?reas com diferentes graus de prote??o associados com diferentes vulnerabilidades do Aqu?fero Barreiras, na ?rea do baixo curso do Rio Maxaranguape, nordeste do Brasil. Esses mapeamentos foram elaborados mediante as metodologias Condut?ncia El?trica Longitudinal, GOD (G - natureza do aqu?fero, O - litologia da zona n?o saturada, D - profundidade do n?vel d??gua) e do ?ndice de Vulnerabilidade do Aqu?fero (AVI), as quais s?o fundamentadas em par?metros litol?gicos, hidr?ulicos e geoel?tricos, al?m da espessura da zona n?o saturada. Os resultados obtidos mostram que os dom?nios delimitados por ?ndices de vulnerabilidade s?o aproximadamente concordantes entre si. Em linhas gerais, as classes de vulnerabilidades moderada, alta a extremamente alta, abrangem quase a totalidade da ?rea, delineando tanto a faixa central como a por??o norte e sul da ?rea investigada, conforme valores inferiores a 1 do log c e 5 mS, nas metodologias AVI e de Condut?ncia Longitudinal, respectivamente; e magnitudes superiores a 0.4, segundo a metodologia GOD. Nesse sentido, a ?rea de estudo exibe substancial sensibilidade ? contamina??o de suas ?guas subterr?neas, decorrente essencialmente do cen?rio de ocorr?ncia de forma??es sedimentares de elevada permeabilidade e reduzidas profundidades do n?vel fre?tico, facilitando a percola??o de eventuais cargas contaminantes no sentido do aqu?fero. / The integrated assessment of an aquifer intrinsic vulnerability constitutes an extremely important tool as a subsidy to the establishment of public policies for the preservation, protection and sustainable hydro-environmental use of an underground water source. In this aspect, the main purpose of this work was the elaboration of vulnerability mappings based on hydrogeophysical data, aiming at the identification and delimitation of subareas with different degrees of protection associated with different vulnerabilities of the Barreiras Aquifer in the lower course area of the Maxaranguape River, Northeast of Brazil. These mappings were elaborated using the following methodologies such as Longitudinal Electrical Conductance, GOD (G ? groundwater hydraulic confinement; O ? overlaying strata; D ? depth to groundwater table) and Aquifer Vulnerability Indexes (AVI), which are based on lithological, hydraulic and geoelectric parameters, as well as the thickness of the unsaturated zone. The results show that the domains delimited by vulnerability indexes are approximately concordant with each other. In general terms, the moderate, high to extremely high vulnerability classes cover almost the entire area, delineating both the central and the northern and southern portions of the investigated area, according to values lower than 1 of log c and 5 mS, in the AVI and Longitudinal Conductance methodologies, respectively; and magnitudes higher than 0.4, according to the GOD methodology. Therefore, the study area exhibits a substantial susceptibility to the contamination of its groundwater, mainly due to the occurrence of sedimentary formations with high permeability and reduced depths of the water table, facilitating the percolation of possible contaminant loads towards the aquifer.