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LETÍCIA GABRIELE DA SILVA BEZERRA
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Analysis of intraurban environmental quality in the municipality of Mossoró, Rio Grande do Norte, Brazil.
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Leader : ALFREDO MARCELO GRIGIO
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MEMBRES DE LA BANQUE :
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ANTONIO CONCEIÇÃO PARANHOS FILHO
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ALFREDO MARCELO GRIGIO
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MÁRCIA REGINA FARIAS DA SILVA
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Data: 25 févr. 2022
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Afficher le Résumé
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Cities are one of the greatest transformations and impacts produced by human beings on the natural environment, imposing challenges on the urban sphere of life, including urban environmental quality. Urban environmental quality refers to the environmental satisfaction of urban areas, and their studies provide information on areas that present poor and good environmental quality conditions, seeking to minimize negative impacts on natural resources and improve the quality of life of the population. Mossoró, located in the state of Rio Grande do Norte, northeastern Brazil, has relevant economic and social influence as the second largest city and only medium-sized city in the state. Throughout its process of urban expansion, planning and municipal management did not contemplate the sustainability of the environment, caused by socio-environmental problems that interfere in the conditions of urban environmental quality of the city. Therefore, the objective of this work was to identify the conditions of intraurban environmental quality of the municipality of Mossoró, Rio Grande do Norte, seeking to support discussions about the planning and urban management of the city. The nature of this research is basic, with a quantitative approach, before the objectives is descriptive, using bibliographic and documentary research. The socio-environmental variables selected to result in the conditions of intraurban environmental quality of Mossoró were: land cover, vegetation cover, land surface temperature, occurrence of flooding and basic sanitation conditions. For each variable, a thematic letter was elaborated in the free software QGIS 3.10.7 'A Coruña', and negative attributes were defined that were added together to result in the conditions of intraurban environmental quality of Mossoró classified in the classes: good, low, and poor. Throughout the urban expansion of the city of Mossoró, especially from the 1970s, it is possible to classify the city's neighborhoods into central, neighborhoods that are located further to the city center, on the development axis, having better infrastructure, equipment, and public services unlike the peripheral neighborhoods, located on the city's margins. The analysis of the socio-environmental variables land cover, vegetation cover and land surface temperature show that the central neighborhoods are more vulnerable to low intraurban environmental quality due to the concentration of built area, little or absence of vegetation cover and high temperatures, different from what occurs in peripheral neighborhoods. The socio-environmental variable occurrence of flooding indicates the precariousness of the rainwater drainage system in the city, contributing to the reduction of intraurban environmental quality, while the variable basic sanitation conditions proved to be more adequate in the central neighborhoods, to have better infrastructure conditions. As a result of the conditions of intraurban environmental quality of Mossoró, it is possible to identify that the condition of good intraurban environmental quality is present in areas of the peripheral neighborhoods of the city, the condition of low intraurban environmental quality is located mainly in areas of the peripheral neighborhoods, and the condition of poor intraurban environmental quality arises punctually in areas of the central and peripheral neighborhoods. It is recommended actions and measures related to the planning and municipal management of Mossoró with a focus on preservation, conservation, and improvement according to each condition.
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2
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SAMARA DE ALMEIDA DA SILVA
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PALEOENVIRONMENTAL AND TAPHONOMIC ASPECTS OF FOSSIL VERTEBRATES FROM THE LAGOA ESCURA TANK, SANTALUZ, BAHIA, BRAZIL.
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Leader : KLEBERSON DE OLIVEIRA PORPINO
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MEMBRES DE LA BANQUE :
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CAROLINA SALDANHA SCHERER
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DANIELLE PERETTI FILGUEIRA
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HERMÍNIO ISMAEL DE ARAÚJO JÚNIOR
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KLEBERSON DE OLIVEIRA PORPINO
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Data: 10 mars 2022
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There is a great diversity of works on tanks in Bahia that deal with taxonomic aspects, while taphonomic studies are still scarce. The study of taphonomic signatures allows a better understanding of them and enhances the paleoenvironment reconstructions. Therefore, this work aimed to describe and interpret taphonomic signatures in fossils from the Lagoa Escura tank in the municipality of Santaluz, Bahia, in order to improve the understanding of the preservation of fossils in natural tanks and infer paleoenvironmental aspects of northeastern Brazil during the Quaternary. The fossiliferous accumulation of Lagoa Escura is taxonomically diverse, recording seven taxa of fossil mammals. The abundance of Eremotherium laurillardi in the accumulation may be a result of the great abundance that this species had in the paleocommunity and the resistance of its bones. The Lagoa Escura thanatocenosis is a peripheral assemblage, which at times experienced a short period of subaerial exposure, before burial and short-distance transport, probably through floods. We observed that the fossils with the coloration with strong shades of black, brown and red have as the most frequent minerals iron oxide and manganese oxide. Permineralization and substitution are the main fossildiagenetic processes present in fossil of the Lagoa Escura tank.
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3
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RODOLFO COSTA DA SILVA
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PALEOPATHOLOGIES IN QUTERNARY MAMMALS IN THE STATE OF PERNAMBUCO, MUNICIPALITY OF CARUARU: DIAGNOSIS, PALEOENVIRONMENTAL AND ECOLOGICAL IMPLICATIONS
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Leader : KLEBERSON DE OLIVEIRA PORPINO
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MEMBRES DE LA BANQUE :
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FERNANDO HENRIQUE DE SOUZA BARBOSA
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ANA BERNADETE LIMA FRAGOSO
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ANA MARIA RIBEIRO
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KLEBERSON DE OLIVEIRA PORPINO
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Data: 10 mars 2022
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Important approaches – such as paleopathology – are still incipient for some groups of the Quaternary Megafauna (e.g. toxodon, macrauchenia, mastodons) in the Brazilian Intertropical Region (RIB). The diseases originated in an ecological context, being related to the individuals' autoecology, and interrelated environmental factors may also have contributed to the incidence of diseases, triggering pathological metabolic disorders. The aim of this work is to analyze pathological changes in fossils of Quaternary mammals, and discuss their ecological, environmental and disease distribution implications in megafauna during the Quaternary period in the RIB. The materials to be analyzed belong to the Paleontology collection of the Federal Rural University of Pernambuco (UFRPE) and were collected in a tank deposit located in Serra do Medo - Caruaru, State of Pernambuco (8°6.8225'S 36°6.0349'W) . Specimens were analyzed macroscopically. Diagnosis followed according to specific literature. New occurrences of Spondyloarthropathy, bone infection and calcium pyrophosphate deposition disease were identified in representatives of the Megafauna of the RIB, in addition to being the first record of beign neoplasia and joint depression in animals of the Megafauna. It was possible to infer correlations between paleoecological/paleenvironmental information with new paleopathological findings, supporting the future understanding of the main causes of Pleistocene mammals to manifest such diseases.
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4
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JULIA RELENE DE FREITAS RODRIGUES
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PHOTOVOLTAIC SOLAR ENERGY: A SYSTEMTIC AND GEOSPATIAL ANALYSIS
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Leader : RODRIGO GUIMARÃES DE CARVALHO
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MEMBRES DE LA BANQUE :
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DIANA GONÇALVES LUNARDI
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ILTON ARAUJO SOARES
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MÁRCIA REGINA FARIAS DA SILVA
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RODRIGO GUIMARÃES DE CARVALHO
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Data: 11 mars 2022
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Afficher le Résumé
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Photovoltaic solar energy presents itself as one of the most promising renewable sources to diversify current energy matrices, as its advantages are significant, especially when compared to the most used sources on the planet. Its exponential growth has been taking place on a national and global scale. In this context, the general objective of this work was to analyze the process of expanding the use of photovoltaic solar energy in Mossoró/RN between the years 2015 to 2021. Secondly, we sought to identify the main advantages and disadvantages of using photovoltaic solar energy in Brazil and in the World. The methodological procedures were divided into three stages: in the first, a review of literature and documents was carried out to support and delimit the research; in the second stage, a systematic literature review was carried out to identify the advantages and disadvantages of using photovoltaic solar energy on a national and global scale. For this, a set of criteria was established for the selection of the literature to be analyzed; in the third stage of the research, a geospatial database was set up with information on the location of residential and commercial installations of solar panels in Mossoró and three other municipalities in the Northeast region of Brazil. Then, thematic maps were prepared for data analysis and interpretation. As a result, the systematic review pointed out a total of 26 advantages of using photovoltaic solar energy, with emphasis on the absence or low emission of Greenhouse Gases, possibility of use in remote areas, alternative locations and different economic activities and high cost benefit, considering the useful life. 16 disadvantages were also identified, such as high initial cost, need to increase appropriate regulations, for non-economic obstacles that can hamper the effectiveness of policies and support schemes and lack of business models for financing in the private sector. Regarding the geospatial analysis, the study identified that in Mossoró there is a concentration of installation of solar panels in neighborhoods with higher purchasing power, with a concentration in residential condominiums, closed horizontal middle and upper middle class. In comparison with other municipalities in the Northeast region, a similar and accelerated scenario of growth in the use of residential and commercial photovoltaic solar energy was noticed. The data analyzed in the research also suggest that, in Brazil in the last five years, there is a direct relationship between the growth in the use of solar energy and the increase in the value of the MWh of electricity and between the growth in the use of solar energy and the kWp reduction. Finally, it was found that the exponential growth in the use of solar energy in Mossoró follows the national and global scenario due to factors such as: the existence of several sources of financing, economic and environmental advantages and investments in research.
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5
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ANDRE LUIZ DA SILVA
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ANTIFUNGAL ACTIVITY OF PROTEINS EXTRACTED FROM Luffa operculata SEEDS AGAINST Candida albicans and Candida krusei.
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Leader : CYNTHIA CAVALCANTI DE ALBUQUERQUE
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MEMBRES DE LA BANQUE :
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CYNTHIA CAVALCANTI DE ALBUQUERQUE
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FRANCISCA MARTA MACHADO CASADO DE ARAÚJO
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PEDRO FILHO NORONHA DE SOUZA
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Data: 31 mars 2022
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Luffa operculata is a vine species native to Brazil widely used for the treatment of respiratory diseases, howerver, studies indicate its effectiveness in the treatment of other diseases. Candida spp. are fungi that annually kill approximately 1.5 million people. Within this genus, C. albicans e C. krusei species are human pathogens that cause a high death rate of infected. Treatments for diseases caused by these microorganisms consist of antifungals, which can cause fungal resistance. The interest in plant species that have biotechnological applications is of great interest to society. Thus, this research aimed to evaluate the antifungal potential of protein extracts from Luffa operculata seeds against C. albicans e C. krusei fungi. In this perspective, seeds of the species were crushed to form the protein flour that originated the extracts. From these extracts, the parameters were evaluated: electrophoretic profile of the proteins extracted from the seeds; concentration of soluble proteins; growth inhibition rate of these microorganisms; enzymatic activities; pore formation through fluorescence assays and morphological aspects of the fungal cell through scanning electron microscopy. Test samples were used in triplicate. The data obtained were submitted to ANOVA, followed by Tukey's test, using the GraphPad Prism, with a significance of p ≤ 0.05. The results showed that proteins from the seeds of L. operculata have antifungal activity against C. albicans and C. krusei fungi. Which is observed when analyzing the rate of inhibition of fungal growth for the species, observing the scanning electron microscopy images that demonstrate damage to the surface of fungal cells, and fluorescence microscopy that show the formation of pores in the membrane and cell wall of fungi, as well as the formation of reactive oxygen species, indicating the extracts from seeds of this species as a potential plant resource for the treatment of diseases caused by C. albicans and C. krusei.
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6
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FRANCISCA MARIA DO CARMO FREIRE MAURICIO
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Ethnobotanicalstudyof medicinal plants in theSettlement Oziel Alves, Mossoró/RN, Brazil.
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Leader : RAMIRO GUSTAVO VALERA CAMACHO
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MEMBRES DE LA BANQUE :
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EDNA MARIA FERREIRA CHAVES
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LAMARCK DO NASCIMENTO GALDINO DA ROCHA
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RAMIRO GUSTAVO VALERA CAMACHO
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Data: 8 avr. 2022
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Ethnobotanicalstudiesof medicinal plants are increasinglyimportant, as heyenabletheidentification ofplantspecies with therapeutic potential, promoteknowledgeofthe local flora of a givenregion, andcontributetotheconservationofbiodiversity, in additiontotherescueandappreciationoftraditionalknowledgeofpopulations.Theobjectiveofthisstudywastocarry out anethnobotanicalsurveyonthe use of medicinal plantsbyresidentsofthe Oziel Alves/Maisa Settlement, rural areaof Mossoró-RN,a communityinserted in thesemiaridregion, whichpresents a favorablestructure for thedevelopmentofthisstudy, since it containsareas in whichthereistheoccurrenceofplantswith medicinal potential, andthissettlementis close tothe Furna Feia National Park, animportantunitoftheconservationofthe Caatinga biome.Toobtainthe data, thefollowingstrategieswereapplied: socioeconomicquestionnaires, semi-structured interviews, freelists, guided tours anddirectobservation.In thisstudy, 51 specieswerecited, distributed in 29 familiesand 41 genera.The Lamiaceaefamilywasthemostrepresentative.The mostcitedspecieswereCocos nucifera L., Anacardiumoccidentale L., Citrus x limon (L.) Osbeck, Aloe vera (L.) Burm. f. andMalpighia glabra L.The speciesthatobtainedthehighestcorrectedmain use agreement (CUPc) wereCitrus x limon (L.) OsbeckandMalpighia glabra L.Regardingthevalue in use (VU), Cocos nucifera L., Anacardiumoccidentale L., Citrus x limon (L.) Osbeck, Aloe vera (L.) Burm. f. andMalpighia glabra L. stood out.The partoftheplantmostusedbytheinformantsistheleafandthemostcitedformofpreparationwastea.The populationstudiedhasanimportantknowledgeabout medicinal plantswhichhaveprovedtoberelevantresources in healthcareand are indicatedtotreatvariousdiseases.
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7
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ANDERSON PAULO RODRIGUES LOPES
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ANTIMICROBIAL AND ANTIBIOFILM ACTIVITY OF ESSENTIAL OIL FROM Lippia gracilis (Verbenaceae) AND OF A NATURAL OINTMENT ON Staphylococcus aureus STRAINS
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Leader : MAYRON ALVES DE VASCONCELOS
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MEMBRES DE LA BANQUE :
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EDSON HOLANDA TEIXEIRA
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DIEGO NATHAN DO NASCIMENTO SOUZA
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MAYRON ALVES DE VASCONCELOS
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Data: 29 avr. 2022
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Antimicrobial resistance (AMR) has emerged as one of the main health problems due to the high rates of infections caused by bacteria, parasites, viruses or fungi. In addition, microorganisms have a very efficient defense mechanism, the formation of biofilms. In this sense, the discovery of new bioactive products that have antimicrobial activity is extremely relevant to overcome the current problems of antibiotic resistance. Thus, the aim of this study was to evaluate the antimicrobial and antibiofilm activity of essential oil extracted from Lippia gracilis, associated with a natural ointment and also with the antibiotic ampicillin, against different strains of Staphylococcus aureus (ATCC 25923, ATCC 700698 and JKD6008). The antimicrobial activity of the L. gracilis oil, the ointment and the association between them was evaluated in microdilution assays in plates through the minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC). The MIC values of the essential oil were used in combination with the antibiotic ampicillin and its effects were evaluated using the checkerboard technique. Antibiofilm activity was evaluated by quantification of biofilm biomass by crystal violet (CV) staining and by the number of viable biofilm cells by colony forming units (CFU) count. The essential oil presented MIC at 2.5 mg/mL for the three strains of S. aureus and CBM only for S. aureus JKD6008 at the same concentration. The ointment, on the other hand, showed no antimicrobial activity on the three strains tested. The association of the essential oil with the ointment resulted in MIC for S. aureus ATCC 25923 at 2.5 mg/mL and 1.25 mg/mL for S. aureus ATCC 700698 and S. aureus JKD6008. Furthermore, they showed CBM at 5 mg/mL in S. aureus ATCC 25923 and ATCC 700698. The synergistic effect against S. aureus ATCC 25923 (ICIF=0.375), S. aureus ATCC 700698 (ICIF=0.375) strains. Regarding antibiofilm activity, the essential oil of L. gracilis, the ointment and the association between oil and ointment were able to significantly reduce the formation of biofilms and preformed biofilms. In conclusion, the essential oil of L. gracilis showed antimicrobial activity against different strains of S. aureus and their biofilms, either alone or associated with a natural ointment and also with ampicillin.
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DAYANE SUELLEN CABRAL DE MEDEIROS
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ANALYSIS OF WATER DEMAND AND SUPPLY BASED ON THE PERCEPTION OF MUNICIPAL MANAGERS OF THE APODI-MOSSORÓ RIVER BASIN, RN, BRAZIL
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Leader : RODRIGO GUIMARÃES DE CARVALHO
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MEMBRES DE LA BANQUE :
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RODRIGO GUIMARÃES DE CARVALHO
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RAMIRO GUSTAVO VALERA CAMACHO
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ABNER MONTEIRO NUNES CORDEIRO
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JORGE LUIS DE OLIVEIRA PINTO FILHO
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Data: 27 juin 2022
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Afficher le Résumé
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For humanity, water has been changing its values according to the expansion of societies in the world and the growing technological and industrial advance, ceasing to be just a natural resource, used to satisfy basic needs and starting to have economic value. The present study aims to analyze the water demand and supply in the municipalities that make up the Apodi-Mossoró river basin, located in the state of Rio Grande do Norte, between the years 2017 to 2020, a period that went through recurrent and prolonged droughts, with low rainfall, from the perspective of municipal managers, in addition to evaluating the importance of the São Francisco River Integration Project for that basin. The procedures used for the development of this research consisted of a bibliographic review on aspects of the natural and socioeconomic framework, in addition to the application of forms that made it possible to understand the demand and supply of water resources and the techniques used by managers during periods of water scarcity. The method used to obtain data from the municipalities regarding the types of supply sources and on the management of water supply and demand, and the quality of water, was the quantitative, through graphs obtained through the responses of the managers, and the qualitative method. used for the subjective description of the results. As a result, the study highlighted the water supply strategies of the municipalities in the face of scarcity, noting that several methods were used, such as the water truck, to meet the population demand, prioritizing human consumption. Conflicts over the use of water are non-existent in most of the basin, through population awareness. The transposition of the São Francisco is seen as a solution to guarantee water security and the committee is rarely used to mediate any type of conflict.
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DAYANE SUELLEN CABRAL DE MEDEIROS
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ANALYSIS OF WATER DEMAND AND SUPPLY BASED ON THE PERCEPTION OF MUNICIPAL MANAGERS OF THE APODI-MOSSORÓ RIVER BASIN, RN, BRAZIL
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Leader : RODRIGO GUIMARÃES DE CARVALHO
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MEMBRES DE LA BANQUE :
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RODRIGO GUIMARÃES DE CARVALHO
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RAMIRO GUSTAVO VALERA CAMACHO
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ABNER MONTEIRO NUNES CORDEIRO
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JORGE LUIS DE OLIVEIRA PINTO FILHO
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Data: 27 juin 2022
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Afficher le Résumé
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For humanity, water has been changing its values according to the expansion of societies in the world and the growing technological and industrial advance, ceasing to be just a natural resource, used to satisfy basic needs and starting to have economic value. The present study aims to analyze the water demand and supply in the municipalities that make up the Apodi-Mossoró river basin, located in the state of Rio Grande do Norte, between the years 2017 to 2020, a period that went through recurrent and prolonged droughts, with low rainfall, from the perspective of municipal managers, in addition to evaluating the importance of the São Francisco River Integration Project for that basin. The procedures used for the development of this research consisted of a bibliographic review on aspects of the natural and socioeconomic framework, in addition to the application of forms that made it possible to understand the demand and supply of water resources and the techniques used by managers during periods of water scarcity. The method used to obtain data from the municipalities regarding the types of supply sources and on the management of water supply and demand, and the quality of water, was the quantitative, through graphs obtained through the responses of the managers, and the qualitative method. used for the subjective description of the results. As a result, the study highlighted the water supply strategies of the municipalities in the face of scarcity, noting that several methods were used, such as the water truck, to meet the population demand, prioritizing human consumption. Conflicts over the use of water are non-existent in most of the basin, through population awareness. The transposition of the São Francisco is seen as a solution to guarantee water security and the committee is rarely used to mediate any type of conflict.
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10
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ALANA TICIANE ALVES DO RÊGO
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SPATIO-TEMPORAL ANALYSIS OF THE INCIDENCE OF DENGUE IN THE CITY OF MOSSORÓ/RN BETWEEN THE YEARS 2010 TO 2020.
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Leader : ALFREDO MARCELO GRIGIO
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MEMBRES DE LA BANQUE :
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ALFREDO MARCELO GRIGIO
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FLAVIO HENRIQUE MIRANDA DE ARAUJO FREIRE
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ZORAIDE SOUZA PESSOA
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Data: 4 juil. 2022
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Afficher le Résumé
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Dengue is considered one of the most important public health problems in contemporary times. To better understand the dynamics of the disease and obtain more detailed information, smaller-scale studies have been increasingly discussed in epidemiological analyses. Therefore, the present study aimed to show a better delineation of the dengue landscape in the municipality of Mossoró in the state of Rio Grande do Norte between 2010 and 2020, to identify priority and vulnerable regions in the studied area. A descriptive ecological study of reported cases of dengue was carried out in 27 neighborhoods and an urban area of the residents of the municipality in question, obtained through data from the Information System of Notifiable Diseases (SINAN). For data summarization and behavioral analysis, disease incidence rates were investigated from a descriptive perspective of central tendency and dispersion parameters. In order to verify the geographic dependence and show the dynamics of dengue, an analysis of the gross, empirical Bayesian global and local rates was carried out using spatial autocorrelation techniques such as the univariate indices of Moran Global and Local. During the study period, there was a significant increase in incidence rates, with a peak of the disease in 2018. It was also observed that a total of 65,58% of the cases reported in the areas of the municipality had a record of high incidences in the range of 11 years, characterizing an epidemic transmission in the municipality. In addition, when analyzing the pattern of geographic units, it was found that the spatial distribution in absolute number of cases and in incidence rate occurred significantly in the Santo Antônio neighborhood. Although an medium/high spatial dependence on the observed dengue rates was not obtained, a formation of clusters with similar values was identified in the peripheral areas of the urban area, whose urban development took place in an accelerated way, assuming that the agglomeration population is configured as one of the indicators of dengue outbreak in Mossoró. The results represent useful information for the implementation of more robust and better targeted actions against dengue prevention and control, especially in semi-arid regions where environmental conditions favor vector reproduction and contribute to epidemics.
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11
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AMY BORGES MOREIRA
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For the One Health Approach: Health assessment of sea turtles rescued in the Potiguar Basin, northeastern Brazil.
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Leader : FLÁVIO JOSÉ DE LIMA SILVA
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MEMBRES DE LA BANQUE :
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FLÁVIO JOSÉ DE LIMA SILVA
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FERNANDA LÖFFLER NIEMEYER ATTADEMO
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KLAISY CHRISTINA PETTAN-BREWER
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Data: 18 juil. 2022
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Sea turtles are very important sentinels for One Health and for the monitoring of the ecosystem these animals inhabit. In the Potiguar Basin are registered the five species of sea turtles that occur in Brazil. Through the Beach Monitoring Project of the Potiguar Basin (PMP-BP), the live stranded animals are sent to the Center of Rehabilitation of Marine Fauna of the Cetáceos da Costa Branca Project of the Rio Grande do Norte State University (PCCB-UERN) for recovery and investigation of standings and mortality. This study aimed to characterize epidemiological aspects of stranding and mortality of sea turtles under rehabilitation in 2020. Third-four (34) strandings events were identified and included the species Chelonia mydas, Lepidochelys olivacea and Caretta caretta, among juveniles (n=29) and female adults (n=5). Stretch E (n=19) had the highest record of strandings, followed by stretch B (n=8), A (n=4), C (n=3) and D (n=0). The temporal distribution of the strandings occurred with predominance between October 2019 and March 2020 and October and December 2020. Beaches, mangrove, river margin, sea and river were that environments of occurrence of individuals sent to rehabilitation. Solid wastes (n=4), bycatch (n=2), entanglement (n =1), complications associated with fibropapilomatosis (FP) (n=7), physical trauma (n=9), neurological disorders (n=1), buoyancy disorders (n=3) and indetermined (n=7) were the causes of stranding characterized. Causes of mortality related to the ingestion of solid wastes (n=3) were gastrointestinal perforation, obstruction and compaction; to complications associated with fibropapilomatosis were (n=3) pulmonary nodules associated with septic shock and respiratory insufficiency, hypovolemic shock and an infection scenario; causes of mortality related to physical trauma (n=4) were systemic infection scenario with initial apparent involvement of the respiratory system, renal failure, cardiorespiratory arrest and hepatic encephalopathy; to buoyancy disorder (n=1) were generalized infection with the main involvement of the liver; and to indetermined (n=6) were an acute infectious pulmonary scenario, complications of drownings, as lungs with emphysematous aspect, ingestion of fishing artifact, septic shock and endotoxemia predisposing to hepatopathy. The findings on solid wastes included plastic and fishing artifact, to bycatch and entanglement fishing artifact and physical lesions. Tumors of FP were identified in eyes, head, neck, limbs, cervical and inguinal regions; physical trauma were characterized in abrasions, marcs, injuries, bone exposure, perforation, absence of limbs, necrosis, cranial injury. Epibionts, such as barnacles, mud, or algae, ectoparasites, such as leech and leech eggs were observed in some animals admitted into the Rehabilitation Center. All categories presented a release rate (n=17), but different rates of mortality were observed. Sea turtle health surveillance through the One health Approach can reveal the infaces with which sea turtle health connects. This action for conservation can provide knowledge for a more detailed characterization of stranding and mortality occurrences, information for access of ecosystem health, contribute to health surveillance in One Health and with the Objectives of the Sustainable Development and multiprofissionality for prevention, control and mitigatory measurements.
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12
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JOICE DA SILVA TEIXEIRA
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Use of hydrotalcite and hydroxyapatite in the treatment of produced water from petroleum.
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Leader : ANNE GABRIELLA DIAS SANTOS CALDEIRA
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MEMBRES DE LA BANQUE :
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ANNE GABRIELLA DIAS SANTOS CALDEIRA
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VINICIUS PATRICIO SANTOS CALDEIRA
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TAISA CRISTINE DE MOURA DANTAS
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Data: 22 juil. 2022
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Afficher le Résumé
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Brazil is one of the biggest oil producers in the world. This large production volume generates a large amount of waste, including produced water (PA). AP is considered to be of complex composition, in view of the large number of constituents. This reason makes it necessary to develop research that seek treatment alternatives for this research. Some researches point out that lameL’s double hydroxide oxides, presentlars (physical-chemical characteristics), that an excellent material to make chemical-chemicals are used as adsorbent of polluting chemical components. The objective of this work was to synthesize Hydrotalcite(HT) and Hydroxyapatite (HAp), and then apply them as adsorbents in AP. The materials were obtained by the variable pH coprecipitation method, HT was synthesized and 3 Mg/Al ratios, being 1:1, 2:1 and 3:1, since HAp was synthesized in the ratio of 1.67 of Ca/P. The materials were characterized as XRD, XRF, TG/DTG and FTIR techniques. The advertisements obtained were obtained as advertisements or in manufactured used water, 50 mg of used water was used and 5 advertisements were produced in AP, under materials or in the times of 30 minutes, 60 minutes, 120 and 180 minutes. Advertisements were tested before and after the experiments tested, such as: TOG, durability and concentration of metals (Ni, Cd, Pb, Fe, Zn), via atomic absorption spectroscopy (AAS). Materials in a high level of purity were acquired, using the co-precipitation method, for all reasons, as well as presenting the structural, textural, logical and thermal structures properties. The materials present a good performance in the removal of metals, during the adsorption tests, with HT:1 being the material that presented a better behavior and percentage of removal for all metals, already in alteration to HAp, lead was the metal with the highest removal percentage. It is clear that HT 2:1 is efficient in removing all metals, and HAp as an adsorbent, Pb, Fe Zn, while for Ni the material not presented in the metal concentration.
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13
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OZANIRA SOARES MACIEL
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ELECTROCHEMICAL DEGRADATION OF CAFFEINE AND SIMULTANEOUS GENERATION OF GREEN H2 USING DIFFERENT ANODES.
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Leader : VINICIUS PATRICIO SANTOS CALDEIRA
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MEMBRES DE LA BANQUE :
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VINICIUS PATRICIO SANTOS CALDEIRA
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DANYELLE MEDEIROS DE ARAÚJO
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DIOGO PEREIRA BEZERRA
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ELISAMA VIEIRA DOS SANTOS
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Data: 29 juil. 2022
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Several studies prove that caffeine is a persistent chemical substance with toxic effects on the environment, indicating, therefore, the real need for its degradation in domestic wastewater. In this way, the development of efficient techniques for water treatment and removal of emerging high solubility markers is of great importance due to the management of environmental and health risks. As a methodology, experimental conditions were used in order to achieve better results, as well as the intrinsic parameters of each technique used. The investigative techniques applied were UV-vis Absorption Spectroscopy, to determine the concentration of caffeine and quantify the generation of persulfate generated in the system, and Differential Pulse Voltammetry, as an additional technique for quantification of the compound under study. Variables such as electrolytes, anodes and current densities were investigated during the application of the electrochemical treatment, in order to verify the behavior of caffeine degradation and simultaneous evolution of green H2 produced in the system, since hydrogen has been widely explored and is still considered the fuel of the future. It should be noted that the entire system worked from photovoltaic energy, with the expectation of reducing the costs arising from its application. As a result of the degradation of caffeine, it was possible to observe that the best electrolyte and anode applied were Na2SO4 0.5 mol L-1 and BDD, respectively. In terms of current density, the one that presented the best results was the one of 45 mAcm-2, which favored the generation of a greater amount of hydroxyl radicals, promoting a greater removal of the compound under study, in addition to the greater production of green H2, this which directly depends on the applied current and the electrolysis time. Finally, the objective of this research was to verify which electrolyte and anode would generate more promising results in the degradation of an effluent contaminated with caffeine, proving the efficiency of electrochemical treatment in wastewater and, in addition to this, highlighting the feasibility of integrating hydrogen production in the effluent treatment associated with the use of solar energy.
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14
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NAYONARA YASMIN ALVES DA SILVA
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ELECTROANALYSIS OF HYDROXYCHLOROQUINE IN RIVER WATER USING PRINTED CARBON ELECTRODE MODIFIED WITH SILVER NANOPARTICLES
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Leader : SUELY SOUZA LEAL DE CASTRO
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MEMBRES DE LA BANQUE :
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POLLYANA SOUZA CASTRO
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KEURISON FIGUEREDO MAGALHÃES
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MARIA DE LARA PALMEIRA DE MACEDO ARGUELHO
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SUELY SOUZA LEAL DE CASTRO
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Data: 24 août 2022
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Hydroxychloroquine (HCQ) is part of the 4-aminoquinolines group and is used in the prevention of various diseases such as malaria and dermatological diseases. Large amounts of HCQ are used all over the world due to its wide range of characteristics. But its widespread use can lead to contamination of aquatic systems. Thus, the diagnosis and monitoring of its concentration in river waters and for human consumption is very important. Currently, HCQ analyzes have been performed using chromatographic or spectrometric techniques, however, these techniques have some disadvantages such as high cost, sample preparation and measurements cannot be performed in loco. Alternatively, electrochemical methods are promising because of their advantages, such as simplicity, sensitivity, low cost, miniaturization and the analysis can be done in loco. In this work, an electroanalytical methodology was developed for the determination of HCQ in river water, using printed carbon electrodes modified with silver nanoparticles (EIC/AgNPs). Electrochemical characterization of HCQ on EIC/AgNPs was done using cyclic voltammetry and analysis using chronoamperometry; the effect of pH was evaluated (2.0, 4.0, 6.0, 7.0, 8.0, 10.0 and 12.0), showing that the electrochemical process is pH dependent and is reproducible at more acidic pH. A scan velocity variation study (v = 10, 25, 50, 100, 250 and 500 mV s-1) was carried out to assess the degree of reversibility and mass transport of the sensor. It was observed that the process is irreversible and that the redox process of HCQ in EIC/AgNPs was diffusion controlled. The analytical procedure proved to be sensitive, with detection and quantification limits of 7.2x10-8 mol L-1 and 2.4x10-7 mol L-1 , respectively. The method was successfully applied to the determination of HCQ in contaminated river water samples, with recovery values ranging from 97.5% to 104%.
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15
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RODRIGO YAGO COSTA CARVALHO
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Production of formic acid from the selective electrooxidation of glycerol on Ti/TiO2-RuO2-IrO2 DSA®.
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Leader : THIAGO MIELLE BRITO FERREIRA
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MEMBRES DE LA BANQUE :
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CARLOS ALBERTO MARTINEZ HUITLE
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KEURISON FIGUEREDO MAGALHÃES
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THIAGO MIELLE BRITO FERREIRA
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Data: 26 août 2022
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During biodiesel production, large volumes of residues containing glycerol are generated, resulting from the transesterification reaction of triglycerides. A portion of this co-product is used by the industrial sector, but a representative fraction ends up being inappropriately discarded or stored, triggering several environmental and socioeconomic problems. As an alternative, we have the selective electrooxidation of glycerol in anodes coated with metallic electrocatalysts, which aims to convert it into products with greater added value. It is a subarea of Environmental Electrochemistry that is in constant and full development, but which is still surrounded by challenges, especially in relation to the high cost of some catalysts for commercialization and adaptation on a possible industrial scale. Anodes coated with metallic oxides have shown great potential for the electrooxidation of organic compounds, but the literature does not include studies involving glycerol, including in relation to its electroconversion into products with higher added value. This project seeks to reduce this gap, contributing to the state of the art on the application of dimensionally stable anodes (Ti/ Ti/TiO2-RuO2-IrO2) for the selective electrooxidation of glycerol. The procedure was optimized by studies of current density (60 mA cm‒2), potencial hidrogeniônico (pH 4), temperature (30 °C), concentration of the supporting electrolyte (0.01 mol L‒1 Na2SO4) and treatment (10 h). From the selection of the ideal parameters, a conversion rate above 40% of glycerol in formic acid - major product was found. The energy cost associated with the glycerol electrooxidation reaction under the established conditions was R$ 12.09, that is, the proposed procedure associate efficiency and economic viability. The selective electrooxidation of glycerol in Ti/TiO2-RuO2-IrO2 can also be a more sustainable alternative for the treatment of effluents enriched with this polyalcohol.
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16
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VINICIUS RAMIRES DE LIMA PINTO
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ELECTROANALYSIS OF LEAD IN RIVER WATER USING BIOCHAR MODIFIED CARBON PASTE ELECTRODE.
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Leader : SUELY SOUZA LEAL DE CASTRO
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MEMBRES DE LA BANQUE :
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MARCELO FIRMINO DE OLIVEIRA
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ADRIANA NUNES CORREIA
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KEURISON FIGUEREDO MAGALHÃES
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SUELY SOUZA LEAL DE CASTRO
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Data: 26 août 2022
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Contamination of water resources, especially by heavy metals, is a matter of concern in the scientific community. Therefore, it is important to develop simple, fast, sensitive methodologies that allow on-site and real-time analysis of such contaminants. Thus, in the literature, alternative detection methods have been highlighted, such as electroanalysis, especially those that make use of carbon paste electrodes modified with biochar (EPCMB). This material, a product of pyrolysis, can be obtained from a multitude of biomasses, including the sludge from the effluent treatment plant (ETE) of the cashew nut processing industry (IBCC). In this work, the objective was to develop an electrochemical sensor of carbon paste modified with biochar obtained from sludge pyrolysis, to obtain an electroanalytical methodology for detecting lead in river water by differential pulse redissolution voltammetry (VRAPD). Temperatures of 200, 350 and 550°C, with a residence time of 90 minutes were used in the pyrolysis. Sludge and biochar characterizations were performed by XRF, TGA/DTGA analysis and Fourier transform infrared (FTIR) spectroscopy. Three electrodes of carbon paste modified with biochar (EPCMB) obtained at different temperatures, and two more electrodes, one of carbon paste (EPC) and another modified with sludge (EPCML) were constructed for comparison purposes. The electrodes modified with biochar presented the most intense peak currents (Ip) for the same lead concentration, with the Ip of the electrode obtained at a temperature of 550°C (EPCMB550) being the most intense. This electrode was used in the construction of the calibration curve that presented a linear response in the range of 0.79x10-6 mol L-1 to 1.67x10-6 mol L-1, with R2 = 0.9998 and detection and quantification limits of 0.2404x10-6 mol L-1 and 0.8012x10-6 mol L-1 respectively. The repeatability and reproducibility of the voltammetric response was also studied and the DPR obtained were 1.31% and 2.54% respectively. The electrochemical method was applied to the determination of lead in a real sample of river water; the recovery percentage value was 94.5%. Biochar allowed an increase in the sensitivity of the method and the results showed that the EPCMB550 can be used to detct lead in real samples in an accurate and reproducible way.
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17
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ALANA TAMIRES LEMOS DE MELO
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DEGRADATION OF ORGANIC MATTER PRESENT IN ROYAL BEAUTY SALON EFFLUENT APPLYING ANODIC OXIDATION
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Leader : VINICIUS PATRICIO SANTOS CALDEIRA
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MEMBRES DE LA BANQUE :
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VINICIUS PATRICIO SANTOS CALDEIRA
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INALMAR DANTAS BARBOSA SEGUNDO
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DANYELLE MEDEIROS DE ARAÚJO
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CARLOS ALBERTO MARTINEZ HUITLE
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Data: 31 août 2022
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Due to the great concern with environmental issues and with the removal of potentially contaminating compounds from water bodies, among these, the cosmetics used in the various procedures performed in beauty salons, several studies related to the treatment of effluents and contaminated surface waters have been developed in the recent years, according to Durán (2018). And among the alternatives of great interest are the electrochemical processes, which are basically based on the application of methods that are capable of generating •OH radicals, since these have great oxidizing potential, capable of degrading organic compounds present in the effluents to be treated, reaching sometimes total mineralization. Many procedures can be applied to treat these residues from beauty procedures, but this article focuses on the use of electrochemical oxidation, more specifically in anodic oxidation, through Boron Dopped Diamond (BDD) anodes and Dimensionally Dimensional Anodes. Stables (DSA) for the treatment of a real effluent, from a hair coloring process, collected at the time of rinsing, from a beauty salon in the city of Assú/RN. For the oxidations carried out in this work, three current densities were applied, these being 30 mA.cm-2, 60 mA.cm-2 and 90 mA.cm-2. Within the study, it was observed the need to use the electrolyte Na2SO4 for current conduction. After the experimental tests, the following parameters of the treated samples were observed: pH, potential and COD. Significant results were obtained, as follows: the test performed with a BDD anode, with a density of 90 mAcm-2, removed about 96,5% of organic matter present in the sample, but the cost was R$87.07/hour. In the test with the DSA anode, about 90% of organic matter was removed, using a lower current density, only 60 mAcm-2 and a cost of R$15.22/h. The use of the DSA anode becomes much more viable if we take into account the costs, and it is also quite efficient.
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18
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ANTONIO BATISTA DE QUEIROZ JUNIOR
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Synthesis of cassava starch biopolymer compounded with zeolite for the treatment of herbicides contaminated water.
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Leader : VINICIUS PATRICIO SANTOS CALDEIRA
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MEMBRES DE LA BANQUE :
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VINICIUS PATRICIO SANTOS CALDEIRA
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SUELY SOUZA LEAL DE CASTRO
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SIBELE BERENICE CASTELLA PERGHER
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Data: 2 sept. 2022
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The exacerbated consumption of agrochemicals and the inappropriate disposal of pesticide residues has configured many environmental problems, mainly directed to water contamination. In this perspective, zeolites have been promising in adsorption processes, because they have specific properties with adsorption capacity, becoming an alternative to this problem. In addition, some configurations of biopolymers have been used in the adsorption of microcontaminants from water, as they have specificities in their structure that allow this characteristic. Thus, in this study, the hybrid compound formed by a biopolymer produced from cassava starch and Beta zeolite was synthesized and characterized, in order to apply it in the adsorption of the herbicide glyphosate. Therefore, in order to investigate the crystalline polymorphic phases of zeolite Beta, the X-Ray Diffraction (XRD) method was used. The thermal properties were analyzed through the techniques of thermogravimetric analysis and differential thermogravimetric analysis. The hydrophilic properties were investigated by studying the degree of swelling of the hybrid formed. Finally, glyphosate herbicide adsorption and identification tests were carried out using the Ion Chromatography (IC) technique. The experiments carried out showed that the biofilm whose composition is formed by 5g of cassava starch, 2.5 ml of glycerol, 100 ml of distilled water and 1 g of zeolite beta, stirred at 80 °C for 20 minutes formed a flexible material. and resistant to aqueous media when immersed for 24 hours. Thermal analysis revealed that the biomaterial Zeolite-Biopolymer (ZBM) demonstrates lower decomposition temperatures, and this may occur due to the activity of acidic sites on the surface of the zeolite, favoring a faster decomposition of the polymer/starch. Still, it was observed that the ZBM has adsorbent characteristics, since it showed adsorption of approximately 57%, 63%, 26%, in solutions with glyphosate concentration of 30, 40 and 50 ppm, respectively. Thus, it is possible to infer that the present study configured the synthesis of the biopolymer composed of Beta zeolite with adsorbent capacity for possible environmental applications in the decontamination of waters with the presence of the herbicide glyphosate.
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19
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FERNANDO DE CARVALHO ARAÚJO
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IS THE RELATIVE ABUNDANCE OF Plagioscion squamosissiums A FISH SPECIES INTRODUCED INTO THE BRAZILIAN SEMI-ARID RESERVOIR INFLUENCED BY CLIMATE AND LAND COVER?
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Leader : DANIELLE PERETTI FILGUEIRA
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MEMBRES DE LA BANQUE :
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DANIELLE PERETTI FILGUEIRA
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Filipe da Silva Peixoto
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JÔNNATA FERNANDES DE OLIVEIRA
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Data: 8 sept. 2022
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The abundance of introduced species in different types of ecosystems is associated with several factors such as: environmental conditions, absence of natural predators, food plasticity, availability of resources and habitats. For this reason, the aims of this work was investigate how the climate and the use and land cover around of the Santa Cruz Reservoir, located in municipality of Apodí / RN, influence the abundance of Plagioscion squamosissimus a Amazonian native fish introduced in reservoirs of semi-arid Brazilian region. For this, were used: a) Data of average temperature and accumulated precipitation of the municipality of Apodi / RN obtained from the historical database of the National Institute of Meteorology (INMET), collected at the meteorological station of the Rio Grande do Norte Agricultural Research Company (EMPARN); b) Volumetric data of the Santa Cruz Reservoir obtained through the portal of the Rio Grande do Norte Secretary of Environment and Water Resources (SEMARH – RN); c) Data from the Santa Cruz Reservoir water layer and the land use and land cover categories, obtained through the processing of images from different satellites, to which the normalized difference water index (NDWI) and Soil Adjusted Vegetation Index (SAVI) and Finally, the ichthyofauna, was sampled in the Santa Cruz reservoir, at eight points distributed along the water body, during the months of February, May, August and November, in the years of 2013, 2015 and 2017 in a partnership between the Federal Rural University of the Semiarid (UFERSA) and the Rio Grande do Norte state University (UERN), where, the individuals collected were identified, quantified and the relative abundance of P. squamosissimus was calculated by the ratio of the number of individuals of the species studied by the total number of individuals collected, this result being multiplied by 100, where the percentage of that species in relation to the others during the days of capture is obtained. The results show a reduction over time in the volume and in the area of the water depth of the reservoir, highlighting in the composition of its surroundings, two main categories of land use and cover, the undergrowth and the exposed soil that are inversely proportional to each other, the correlation of these two categories with the abundance of P.squamosissimus was positive with the area of exposed soil and negative with the undergrowth, the latter being the only category that presented statistical significance among the categories of use and land cover (R² adj: 0.273, P = 0.04), that is, the reduction of undergrowth around the reservoir is associated with an increase in the relative abundance of corvina, this indicates that, in more severe climatic conditions such as a situation of scarcity water, where the vegetation usually loses its leaves, for example, there is an increase in organic matter coming from the banks, bringing changes in the conditions and resources that that allow the survival of this species.
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20
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WIGNA RAFAELA DOS SANTOS SILVA
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Effects of space-time variation on ichthyofauna composition in an anthropized environment of the northeastern semi-arid.
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Leader : DANIELLE PERETTI FILGUEIRA
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MEMBRES DE LA BANQUE :
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DANIELLE PERETTI FILGUEIRA
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JÔNNATA FERNANDES DE OLIVEIRA
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MAÍSA CLARI FARIAS BARBALHO DE MENDONÇA
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Data: 8 sept. 2022
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This study aimed to verify the effect of space-time on the composition and structure of the ichthyofauna in an urban stretch of the river Apodi/Mossoró, RN. For this, community knowledge (richness, diversity and abundance) and abiotic data were used. 7 samples of abiotic data and 6 samples of points were made in urban sections of the Passage community of Pedras, where the river is fragmented in two points of construction of passages The collection was done in 3 different points: the first point further upstream of the first pass, a second point between passes and a third point downstream of the second pass. For the collection, multiparameter devices and a cast net were used. There were 396 people, divided into 11 people, 9 families and 5 orders. The diversity, richness and evenness indices were presented in relation to time and space. There was a difference in the values of these indices depending on the sampling points and the collection period. The amount of richness was higher in the rainy season, with significant importance from point 1 to point 3, as well as richness. As for similarity, it was observed that points 1 and 2 are more similar and point 3 is further away. Salinity also increased in the direction – upstream - downstream, being lower in P1 and higher in P3. Considering the occurrence of species for the Apodi/Mossoró river, 5 were outstanding, 2 were accessory and 4 were occasional.
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21
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TALITA TÁSSIA DA COSTA
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SYNTHESIS OF HYDROXYAPATITE USING WASTE FROM THE CERAMIST ACTIVITY AS A SOURCE OF CALCIUM OXIDE TO REMOVE POLLUTANTS FROM INDUSTRIAL EFFLUENT.
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Leader : ANNE GABRIELLA DIAS SANTOS CALDEIRA
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MEMBRES DE LA BANQUE :
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ANNE GABRIELLA DIAS SANTOS CALDEIRA
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VINICIUS PATRICIO SANTOS CALDEIRA
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TAISA CRISTINE DE MOURA DANTAS
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Data: 9 sept. 2022
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The generation of industrial waste is an obstacle for its management, the ceramic sector stands out as a potential generator. In view of this, the use of this residue is proposed as a source of calcium oxide for the synthesis of Hydroxyapatite (HAp), a bioceramic that requires calcium. Therefore, characterization was carried out through FRX, TG/DTG and XRD analysis of the calcined material at different temperatures and non-calcined, in percentages combined between the commercial and alternative source. As well as proceeded the synthesis of HAPRCal800 using 100% of the residue as calcium source. It can thus be observed that, among the materials, RCal700 had significant quantities in all analyzes with a majority composition of 78.83% of calcium, which factors corroborate to be the heating range used in subsequent studies. As for the synthesis, it can be observed that the percentages of calcium HAPR were higher than the HAPP, and related to the loss of mass and formation of the phases, both had similar results showing the feasibility of using the residue as a substitute for the commercial source of calcium.
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