Rozprawy doktorskie na temat „Organic destiny”
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Greenshields, Barbara, i n/a. "Memento Mori: A Personal Story of Impermanance". Griffith University. Queensland College of Art, 2005. http://www4.gu.edu.au:8080/adt-root/public/adt-QGU20060727.123955.
Pełny tekst źródłaGreenshields, Barbara. "Memento Mori: A Personal Story of Impermanance". Thesis, Griffith University, 2005. http://hdl.handle.net/10072/365392.
Pełny tekst źródłaThesis (PhD Doctorate)
Doctor of Philosophy (PhD)
Queensland College of Art
Full Text
Chilat, Ecatarina. "Synthèse, caractérisation et durabilité de systèmes photostructurables destinés à l'holographie". Phd thesis, Université Blaise Pascal - Clermont-Ferrand II, 2008. http://tel.archives-ouvertes.fr/tel-00730504.
Pełny tekst źródłaTesi, Tommaso <1978>. "Destino del carbonio organico di apporto fluviale sulle piattaforme continentali: Adriatico centro-settentrionale e Golfo del Leone". Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2007. http://amsdottorato.unibo.it/446/.
Pełny tekst źródłaSantos, Larissa Macedo dos. "\"Dinâmica da matéria orgânica e destino de metais pesados em dois solos submetidos à adição de lodo de esgoto\"". Universidade de São Paulo, 2006. http://www.teses.usp.br/teses/disponiveis/75/75132/tde-11042007-111225/.
Pełny tekst źródłaIn agricultural regions near big urban areas and where the intensive use of natural resources exists, in particular of the soil, recycling sewage sludge with agricultural finality appears as a promising alternative. However, the sustainability of this practice needs to be further assessed, even more so when considering there is lack of information on environmental impacts in tropical areas. The present work evaluated the effects of sewage sludge addition to two soils, Rhodic Eutrodox and Rhodic Hapludox by FAO Taxonomy) colleted from a field experiment, installed in 1997 in the city of Jaboticabal, São Paulo State. Sewage sludge was obtained from the Barueri sewage sludge treatment plant, located in the metropolitan region of São Paulo State, Brazil, operated by the Basic Sanitation Company of the State of São Paulo. In order to observe the effects of the sewage sludge addition, the humic acids extracted from soils were analyzed by absorption of ultraviolet and visible radiation, Fourier transform infrared, nuclear magnetic resonance, eletronic paramagnetic resonance, fluorescence and elementar analyses. To analyse the intact soil laser induced fluorescence was used, and for physics and chemical inductively coupled plasma atomic emission was used. The results obtained by Fourier transformed infrared and nuclear magnetic resonance showed spectra with characteristic bands from aliphaticity groups for humic acid from sewage sludge, confirming their high aliphacitity degree. The level of the semiquinona free radicals determined by electronic paramagnetic resonance decreased for soils under sewage sludge application. Data from fluorescence utilizing different methodologies (Zolnay et al., 1999; Milori et al., 2002; Kalbitz et al., 1999) and laser induced fluorescence, from intact soil, showed similar results. In a general manner, the results obtained for spectroscopy analyses showed incorporation of less humified compounds, with high aliphaticity degree and lower aromaticity degree. Analyses of the metals in soils under sewage sludge application in some cases have not evidenced the increase of these elements, even when the sewage show higher levels to those found in the soils. Thus, the question remains, where and how are the heavy metals from sewage sludge? Which, should have been detected in higher levels in soils under sewage sludge application? The objective of this work was to amplify the valuations beyond the conventional proceedings with analyses of physics and chemical fractions. The heavy metals studied were: Cd, Cr, Cu, Fe, Co, Mn, Mo, V and Zn. The results obtained showed higher affinity of metals for physical fractions that have smaller size (clay and fine silt). However, higher heavy metals concentrations were observed in the chemical fractions of the soils, due to higher complexity power of the humic substances of soils. The Zn concentration observed in the water of the humin wash was higher than what was observed in the humina fraction, showing higher affinity of this metal for dissolved organic matter. This result is important, because it evidences the loss of this metal during the extraction process of the humic substances, since this water is discarded. The fractions of fulvic acids 1 and 2 showed significative concentrations of the metals, mainly Cd, Cu, Mn and Zn, being that the biggest were for humic acids, because the most quantity of the reactive groups (charboxilics and phenolics), showed to be a strong complex agent of the metals. Such results indicate different affinity of metals for physics and chemical fractions from soils, emphasizing the importance of the study of the course of heavy metals in the different fractions of the soil.
González-Gaya, Belén. "Occurrence, Transport and Fate of Persistent Organic Pollutants in the Global Ocean = Presencia, Transporte y Destino de Contaminantes Orgánicos Persistentes en el Océano Global". Doctoral thesis, Universitat de Barcelona, 2015. http://hdl.handle.net/10803/335272.
Pełny tekst źródłaEl Océano Abierto está reconocido como un ambiente clave en la dinámica global de la contaminación debido a que representa un gran porcentaje de la superficie terrestre, su alto potencial de degradación y su capacidad como sumidero de sustancias químicas antropogénicas. En esta Tesis dos grupos de contaminantes orgánicos han sido seleccionados para ilustrar la dinámica de los COP y su destino en el medio ambiente oceánico: los hidrocarburos aromáticos policíclicos (PAHs) y las sustancias perfluoroalquiladas (PFASs). Durante la campaña de circunnavegación Malaspina 2010 a través de los océanos Atlántico, Pacífico e Índico (35°N- 40°S), se midieron 64 PAHs en las matrices gas, aerosol, agua de lluvia, disuelto, particulado y en el plancton; y 11 PFAS se cuantificaron en la fase disuelta de agua marina superficial y de la profundidad del máximo de clorofila. La degradación y la deposición atmosférica de los PAHs se evaluaron mediante las medidas de deposición seca, deposición húmeda e intercambio difusivo aire-agua, sugiriéndose métodos para su cuantificación global y proponiéndose un cómputo global para estos contaminantes y otros compuestos semivolátiles aromáticos, así como su efecto en el ciclo del carbono. Asimismo, se midieron los procesos de distribución vertical y los parámetros que afectan a las concentraciones de PAHs y PFASs en la capa de mezcla superficial de la columna de agua. Los procesos examinados para PAHs incluyen los flujos verticales asociados con la sedimentación de materia orgánica (bomba biológica), la biodilución, la degradación planctónica, y el equilibrio aire-agua-partícula. Para las PFASs, la bomba biológica y los flujos difusivos turbulentos (basados en medidas de los coeficientes de difusión turbulenta simultáneas con el muestreo de PFASs) fueron medidos empíricamente por primera vez en la literatura. El análisis de los complejos efectos retroactivos establecidos entre los flujos de deposición y los procesos de degradación, difusión y la bomba biológica a escala global también ha sido abordado. De la misma forma, un amplio espectro de parámetros ambientales se ha revisado para dilucidar posibles factores que pudieran afectar al destino de los COP en el Océano Abierto, y se proponen una serie de líneas de investigación y necesidades prioritarias para su futura investigación.
Albuquerque, Roberta Trindade de. "A atua??o de organiza??es n?o governamentais em Jo?o Pessoa: a que ser? que se destina". PROGRAMA DE P?S-GRADUA??O EM PSICOLOGIA, 2017. https://repositorio.ufrn.br/jspui/handle/123456789/24181.
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Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico (CNPq)
Este trabalho buscou investigar a atua??o de organiza??es n?o governamentais (ONGs) na educa??o de crian?as e adolescentes no munic?pio de Jo?o Pessoa/PB. O estudo foi desenvolvido com sete organiza??es em seis bairros da cidade, a partir de entrevistas, observa??es e leitura dos projetos pedag?gicos. As ONGs, situadas em comunidades em situa??o de vulnerabilidade, desenvolvem a??es de forma??o com o p?blico infanto-juvenil complementando o ensino formal. A atua??o dessas institui??es sem fins lucrativos se configura como uma estrat?gia, especialmente no novo mil?nio, de combater a pobreza com a educa??o por meio da inclus?o social e qualifica??o para o trabalho. Para tanto, compartilham dessa responsabilidade o Estado, o privado e a sociedade. A perspectiva de an?lise desse estudo se deu a partir da constru??o de categorias relacionadas com a literatura. Os resultados apontam que a cidadania ? o principal foco do trabalho desenvolvido por meio de atividades nas ?reas de artes e cultura. A concep??o de educa??o se fundamenta na perspectiva de transforma??o em n?vel individual, atrav?s de inser??o social, melhoria de vida e compreens?o da realidade. A luta pelos direitos sociais constitu?dos na sociedade ? uma das bandeiras das organiza??es. Na pr?tica, atividades l?dicas e recreativas s?o realizadas em todas as ONGs e, em algumas, h? tamb?m o desenvolvimento de um trabalho reflexivo e cr?tico. Conclui-se que o trabalho das ONGs ? significativo para as crian?as e adolescentes atendidas, por terem acesso a conhecimentos e ao desenvolvimento de capacidades e habilidades art?sticas. Dessa forma, as mudan?as que as ONGs conseguem produzir acontecem atrav?s de uma educa??o que visa auxiliar no processo de empoderamento e criticidade do p?blico atendido. No entanto, limites do trabalho foram encontrados no que se refere ? dist?ncia entre o prescrito no projeto pedag?gico e o que acontece na pr?tica e nos desafios quanto ? sustenta??o dos projetos das ONGs.
This work aimed to investigate the role of non - governmental organizations (NGOs) in the education of children and adolescents in the municipality of Jo?o Pessoa/PB. The study was developed with seven organizations in six districts of the city, from interviews, observations and reading of pedagogical projects. NGOs, located in communities in vulnerable situations, develop training actions with the children and youths complementing formal education. The performance of these non-profit institutions is a strategy, especially in the new millennium, to combat poverty through education by means of social inclusion and job qualification. To this end, the State, the private sector and society share this responsibility. The analysis perspective of this study was based on the construction of categories related to literature. The results indicate that citizenship is the main focus of the work developed, through activities in the areas of arts and culture. The conception of education is based on the perspective of transformation at the individual level, through social insertion, improvement of life and understanding of the reality. The fight for social rights constituted in society is one of the flags of the organizations. In practice, recreational and playful activities are carried out in all NGOs, and in some, there is also the development of reflective and critical work. It is concluded that the work of NGOs is significant for the children and adolescents served, because they have access to knowledge and the development of artistic skills and abilities. In this way, the changes that the NGOs can produce take place through an education that aims to help the process of empowerment and criticality of the public served. However, the limits of the work were found regarding the distance between what is prescribed in the pedagogical project and what happens in practice and in the challenges regarding the sustainability of NGO projects.
Tinelli, Pascal. "Etude et realisation d'un detecteur microdosimetrique destine a la radioprotection". Toulouse 3, 1986. http://www.theses.fr/1986TOU30154.
Pełny tekst źródłaFarouil, Léa. "Etudes théorique et expérimentale de semi-conducteurs organiques pour l'élaboration d'un biocapteur destiné à la détection de la pollution de l'eau". Thesis, Toulouse 3, 2018. http://www.theses.fr/2018TOU30310/document.
Pełny tekst źródłaThe aim of this thesis is to develop an organic photodiode (OPD) designed to be integrated into a biosensor. It is part of the broader framework of studying and improving organic components involved into devices devoted to water pollution monitoring. The need for such portable, fast-response, low-cost microsystems is of great interest. The measurement is based on the fluorescence detection of micro-algae under toxic substances exposure. The excited algae, under a blue light emitting diode (LED), will emit a fluorescence signal whose intensity, modified because of pollutant exposure (Diuron), is detected by the OPD. Since the fluorescence signal is very weak, the ideal OPD must have a low dark current and a high sensitivity. To achieve this performance, a judicious choice of organic semiconductor materials (OSC) used for the OPD is required. In addition, it is interesting to investigate their physico-chemical properties by rationalizing the mechanisms involved in the active layer (photon absorption phenomena, charge transport mechanisms, and losses associated with charge recombinations). This thesis is based on two axes. The first one consists in a theoretical study of the charge exchanges at a nanoscale. This have been done by both optical characterizations and quantum chemistry calculations based on DFT and TD-DFT methods. Calculations were performed on a model system (P3HT) thus providing the basis for a very promising computational protocol for studying the properties of materials of interest, for instance PTB7. The second axis concerns the experimental study of the OPD based on PTB7:PC60BM. We have developed, characterized and optimized an OPD guarantying the detection of algal fluorescence without and with Diuron at about nanomolar concentrations
Cachon, Lionel. "Etude tribologique de revêtements durs sans cobalt destinés aux organes d'isolement du circuit primaire des REP". Bordeaux 1, 1995. http://www.theses.fr/1995BOR10618.
Pełny tekst źródłaGarcin, Thibaud. "Contribution à l'évolution d'un bioréacteur destiné à la recherche préclinique cornéenne et la conservation des greffons". Thesis, Lyon, 2019. http://www.theses.fr/2019LYSES055.
Pełny tekst źródłaCorneal transplantation has undergone several changes, from the legislative framework of the retrieval activity to the indications & the surgical techniques. The historic fresh allograft has given way to eye banking which allows quality and safety controls during the storage of corneal grafts. Hypothermia at 4°C or organoculture, two diametrically opposed passive conservation worlds, have coexisted for almost 50 years, without being able to provide an optimal solution for patients. In a context of growing graft needs and an already significant global shortage, the BiiGC laboratory proposed a breakthrough : an active storage thanks to a corneal bioreactor.Our thesis work has different aims : 1/ to present the state of the art of the corneal transplant chain ; 2/ to describe our contribution to the evolution of this bioreactor or active storage machine, compared to the gold standard organoculture, over 1 month then over 3 months, demonstrating on a large preclinical series of human corneal pairs the major contribution of the bioreactor to eye banking: more grafts available, better tissue quality and greater logistical flexibility for the eyebanks. The industrialization of our device thus makes sense. The bioreactor maintining a corneal state in vivo-like for up to 3 months, opens the field of possibilities for preclinical use ; 3/ to report the new and specific activity carried out by the coordinators, with a major dual role for the transplant activity, and the preclinical research thanks to targeted donation allowing experiments with fresh corneas comparable to those transplanted
Nazario, Mariana Gallucci. "Origem e destino da matéria orgânica do sistema lagunar Mundaú- Manguaba, AL, Brasil: sinais de cana de açucar". Niterói, 2017. https://app.uff.br/riuff/handle/1/2863.
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Conselho Nacional de Desenvolvimento Científico e Tecnológico
Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro
Universidade Federal Fluminense. Instituto de Química. Programa de Pós-Graduação em Geociências- Geoquímica, Niterói, RJ.
Este trabalho teve como objetivo avaliar as condições atuais do impacto da cana-de-açúcar nos sedimentos superficiais do Sistema Lagunar Mundaú- Manguaba, estado de Alagoas, litoral nordeste do Brasil. Nas ultimas três décadas, aproximadamente metade das bacias de drenagem no entorno do sistema estiveram cobertas por lavouras de cana. A utilização de marcadores geoquímicos orgânicos na determinação da origem da matéria orgânica tem-se mostrado uma ferramenta importante na avaliação da magnitude da poluição de sistemas lagunares por atividades agrícolas. Análises da composição elementar do carbono e nitrogênio orgânico (razão C:N) e isotópica do carbono (d13C), associadas à determinação de carboidratos e ligninas foram realizadas em 30 amostras de sedimentos totais ao longo das duas lagunas, canais e principais rios, bem como nas frações fina e grossa dos sedimentos. Além disso, foram analisadas 8 amostras de solo, procurando abranger todos os estágios de plantio da cana. A distribuição dos compostos analisados evidenciou a compartimentação do sistema em setores distintos, sugerindo que ocorram diferentes padrões de produção, introdução e degradação de matéria orgânica em cada região. De uma maneira geral, os valores de C:N e d13C indicam a presença de material autóctone nas partes centrais das lagunas e nos canais, a influência de fontes terrestres nos rios e uma mistura entre os dois tipos de material nas saídas dos rios. Nas amostras de solo foram verificadas o sinal característico de plantas C4, como a cana, com d13C próximo a -15‰ e razão C:N de 16, em média. A baixa razão C:N dos solos pode ser resultado, principalmente, da introdução de fertilizantes nitrogenados. As razões carboidrato:carbono foram mais elevadas nos solos e rios, indicando a presença de material vegetal. Da mesma forma, as maiores concentrações de ligninas (?) foram encontradas nas desembocaduras dos rios, evidenciando o aporte de material terrestre nesses locais. A distribuição das razões dos grupos fenólicos (S/V e C/V) não se mostrou muito distinta entre as estações, mas na maioria das amostras apresentou valores elevados da razão C/V, indicando a contribuição de angiospermas não lenhosas, tais como a cana, na composição de ligninas. Foi verificada a evidência de contribuição alóctone nas partes medianas das lagunas, mas os altos valores da relação entre as formas ácida e aldeídica do grupo vanilina [(Ad/Al)v] identificam o estágio avançado da degradação desse material, mascarando sinais específicos da cana. A entrada de matéria orgânica nas lagunas contribui para o aumento da produtividade primária, fato evidenciado pelas maiores concentrações de carboidratos nas regiões centrais. De uma maneira geral, as frações finas apresentaram-se enriquecidas em carbono e carboidratos, enquanto que valores elevados de ligninas e C:N, associados a valores de d13C mais leves, indicam que a fração grossa dos rios e região montante das lagunas é constituída principalmente por fragmentos vegetais. Os rios Paraíba do Meio e Mundaú apresentaram maior participação de cana em seus sedimentos, com 44% e 39%, respectivamente, enquanto que o rio Sumaúma apresenta aproximadamente 15% de cana em sua estação após a usina. O material lixiviado das bacias de drenagem provavelmente já é introduzido nos rios bastante processado, devido ao constante revolvimento e manejo dos solos.
This work aims to evaluate the actual conditions of sugar cane impact on the superficial sediments of Mundaú-Manguaba Lagoon System, State of Alagoas, Northeastern Brazil. During the last three decades, almost half of catchments areas around the system have been covered by sugar cane crops. Organic geochemistry tracers are currently used for the determination of organic matter origin as important tools for the pollution evaluation in lagoon systems affected by agricultural activities. Organic carbon and nitrogen analysis (ratio C:N), carbon isotopic analysis and carbohydrates and lignins determination were performed among 30 samples of course and fine fractions from two lagoons, channels and main rivers. Eight soil samples were also analyzed in order to represent all sugar cane cultivation stages. The compounds distribution showed the system partition to distinct sectors suggesting that different patterns of organic matter production, introduction and degradation occur in each regions. Overall, C:N e d13C values indicate presence of autochthonous material along central parts of lagoons and channels, influence of terrigenous source in rivers and a mixture of both materials at rivers outlets. The characteristic signal of C4 plants like sugar cane, were found in soil samples: d13C near to -15‰ and C:N ratio average 16. Lower C:N ratios may result, mainly, from the introduction of nitrogen fertilizers. Carbohydrate:carbon ratios were higher in soil and rivers, which indicate the presence of vegetal fragments. In the same way, higher lignin (?) concentrations were found at rivers outlets, showing the input of terrigenous sources at these locations. The distribution of phenoic groups ratios (S/V e C/V) were not significantly distinct between samples, but most of them had high values of C/V ratio, which indicates the contribution of non-woody angiosperms to lignins composition. There is an evidence of alochthonous contribution at median sectors, but high values of the acid:aldehyde ratios of vanillyl group [(Ad/Al)v] able the identification of advanced degradation stage of this material, hiding the specific signature of sugar cane. The input of organic matter in the lagoons improves the primary production, as showed by higher concentrations of carbohydrates in central sectors. In general, fine fractions had higher carbon and carbohydrate content. Meanwhile, higher values of lignins and C:N associated with lighter values of d13C indicate that the course fraction from rivers and month lagoons sector is constituted mainly by vegetal fragments. Paraíba do Meio and Mundaú rivers sediments presented higher sugar cane content, with 44% and 39% respectively, while sugar cane content was close to 15% in the station close to the plant in Sumaúma River. The leaching material from the cachtment area already reaches the rivers in a highlyprocessed form due to the constant mixture and management of the soils.
Mattozo, Te?filo C?mara. "Contribui??es de modelagem de equa??es estruturais na an?lise de dados em modelos comportamentais de destino tur?stico". Universidade Federal do Rio Grande do Norte, 2014. http://repositorio.ufrn.br/handle/123456789/19579.
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A fragilidade brasileira quanto ? competitividade tur?stica ? um fato observ?vel nos dados da Organiza??o Mundial do Turismo. O Brasil caiu em 2011, da 45? para a 52? posi??o, apesar de liderar no atributo recursos naturais e estar colocado na 23? em recursos culturais. Assim, grandes interesses e esfor?os t?m sido direcionados para o estudo da competitividade dos produtos e destinos tur?sticos. O destino tur?stico ? caracterizado por um conjunto complexo e articulado de fatores tang?veis e intang?veis, apresentando alta complexidade, dados de elevada dimensionalidade, n?o linearidade e comportamento din?mico, tornando-se dif?cil a modelagem desses processos por meio de abordagens baseadas em t?cnicas estat?sticas cl?ssicas. Esta tese investigou modelos de equa??es estruturais e seus algoritmos, aplicados nesta ?rea, analisando o ciclo completo de an?lise de dados, em um processo confirmat?rio no desenvolvimento e avalia??o de um modelo hol?stico da satisfa??o do turista; na valida??o da estrutura do modelo de medida e do modelo estrutural, por meio de testes de invari?ncia de m?ltiplos grupos; na an?lise comparativa dos m?todos de estima??o MLE, GLS e ULS para a modelagem da satisfa??o e na realiza??o de segmenta??o de mercado no setor de destino tur?stico utilizando mapas auto-organiz?veis de Kohonen e sua valida??o com modelagem de equa??es estruturais. Aplica??es foram feitas em an?lises de dados no setor de turismo, principal ind?stria de servi?os do Estado do Rio Grande do Norte, tendo sido, teoricamente desenvolvidos e testados empiricamente, modelos de equa??es estruturais em padr?es comportamentais de destino tur?stico. Os resultados do estudo emp?rico se basearam em pesquisas com a t?cnica de amostragem aleat?ria sistem?tica, efetuadas em Natal-RN, entre Janeiro e Mar?o de 2013 e forneceram evid?ncias sustent?veis de que o modelo te?rico proposto ? satisfat?rio, com elevada capacidade explicativa e preditiva, sendo a satisfa??o o antecedente mais importante da lealdade no destino. Al?m disso, a satisfa??o ? mediadora entre a gera??o da motiva??o da viagem e a lealdade do destino e que os turistas buscam primeiro ? satisfa??o com a qualidade dos servi?os de turismo e, posteriormente, com os aspectos que influenciam a lealdade. Contribui??es acad?micas e gerenciais s?o mostradas e sugest?es de estudo s?o dadas para trabalhos futuros.
Souza, Jackson de. "Avaliando a efic?cia da promo??o de destinos tur?sticos no estado de Sergipe". PROGRAMA DE P?S-GRADUA??O EM TURISMO, 2017. https://repositorio.ufrn.br/jspui/handle/123456789/23591.
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Dentre os in?meros fatores inerentes aos pa?ses para seu desenvolvimento tur?stico, o marketing configura-se como fator desafiador para criar marcas para seus destinos. A execu??o do marketing de um destino ? normalmente desenvolvida por empresas, conhecidas na literatura como Destination Marketing Organizations (DMOs), e um dos trabalhos que s?o realizados por elas consiste na avalia??o da efic?cia da promo??o tur?stica empreendida. O presente estudo centrou-se na avalia??o da efic?cia da promo??o tur?stica do estado de Sergipe, especialmente pelo fato de o estado ser um destino em consolida??o no turismo nacional, mas que nos ?ltimos anos vem sofrendo um decr?scimo nos investimentos em promo??o, devido a fatores pol?ticos e econ?micos. Para tanto, nesta pesquisa, caracterizada como descritiva e explorat?ria, com abordagem quantitativa, foi utilizado o modelo mais recente referente a efic?cia da promo??o tur?stica: o Destination Advertising Response (DAR) Model, difundido por Stienmetz, Maxcy e Fesenmaier (2015), com a finalidade de analisar dados sobre a efic?cia de campanhas promocionais atrav?s do planejamento de viagem e gastos realizados pelos visitantes em seis facetas: passagens, hospedagem, atrativos, refei??es, eventos e compras. Foram coletados 384 question?rios e, por meio de estat?sticas descritivas, foi poss?vel tra?ar o perfil sociodemogr?fico dos respondentes. Atrav?s da an?lise de correla??o, foram identificadas as percep??es dos respondentes em rela??o aos materiais promocionais do estado. Com o uso do teste de compara??o de m?dias para amostras independentes, e as an?lises de regress?o m?ltipla, foi poss?vel identificar que, de modo geral, a promo??o tur?stica empreendida tem sido eficaz para cinco facetas de viagem, n?o sendo eficaz para a faceta ?Passagens?. Por outro lado, para os visitantes de ag?ncias f?sicas a promo??o de atrativos n?o se mostrou eficaz, ao passo que para os visitantes de ag?ncias virtuais a n?o efic?cia foi verificada na faceta ?Hospedagem?, e para os auto planejadores nas facetas ?Refei??es? e ?Compras?. Tais resultados contribu?ram para serem inferidas recomenda??es a fim de readequar o planejamento promocional do turismo do estado.
Among the many factors related to the countries for their tourism development, marketing is a challenging factor to create brands for their destinations. Companies, known in the literature as Destination Marketing Organizations (DMOs), usually develop the marketing execution of a destination, and one of jobs that they do is to evaluate the tourism promotion effectiveness. The present study focused on evaluating the tourism promotion effectiveness in the state of Sergipe, especially because the state is a destination in consolidation in national tourism, but in recent years the state has suffered a decrease in investments in promotion due to political and economic factors. This research is characterized as descriptive and exploratory with a quantitative approach. It was used the most recent model related to tourism promotion effectiveness: the Destination Advertising Response (DAR) Model, widespread by Stienmetz, Maxcy e Fesenmaier (2015), to analyse data on promotional campaign effectiveness through travel planning and money spent by visitors in six facets: tickets, accommodations, attractions, restaurants, events, and shopping. It was collected 384 questionnaires and, through descriptive statistics, it was possible to trace the sociodemographic profile of the respondents. Through the correlation analysis, the respondents' perceptions regarding the promotional materials of the state were identified. Using the independent sample test t and the multiple regression analyzes, it was possible to identify that, in general, the tourism promotion undertaken has been effective for five facets of travel, not being effective for facet "Tickets". In the group of consumers of traditional agencies, the promotion of attractions was not effective, whereas in the group of online travel agencies' consumers, non-effectiveness was verified in the "Accommodations" facet, and in the group of self-planners in the facets "Restaurants" and "Shopping". These results contributed to inferring recommendations in order to re-adjust the state's tourism promotional planning.
LaBrie, Richard. "Origine, composition et destinée de la matière organique dissoute et ses interactions avec les communautés de procaryotes dans la mer du Labrador". Thesis, 2019. http://hdl.handle.net/1866/24482.
Pełny tekst źródłaOceanic prokaryotes are key players in the carbon cycle by consuming dissolved organic mat-ter (DOM) produced by primary producers. As this organic matter is highly complex with varying degree of bioavailability, prokaryotic communities are highly diverse and different taxa target certain types of organic compounds. By consuming this organic matter, prokary-otes reintroduce this carbon into the food web, a critical energy flow in oligotrophic gyres. However, this consumption is not perfect and they release a lot of carbon as CO2 through respiration, but also as recalcitrant DOM. Thus, they contribute to carbon sequestration in aquatic ecosystems. The objective of this thesis is to characterize DOM bioavailability and its influence on the composition and metabolism of prokaryotic communities in the Labrador Sea, described as one of the Earth’s climate system tipping elements. More precisely, we quantify for the first time how the spatial abundance distribution of prokaryotes influences ecosystem metabolism and organic matter association in the surface waters of the Labrador Sea. Lastly, we look at how DOM produced at the surface is transformed and sequestered following the Labrador Sea winter convective mixing. The oceanic carbon budget is still unbalanced. In order to better understand its carbon sources and bioavailability, we characterize DOM bioavailability across the aquatic contin-uum, from lakes to the open ocean. Using a meta-analysis, our results show that the propor-tion of labile organic matter, i.e. readily available for prokaryotes, is similar at around 6% in all aquatic ecosystems. However, the proportion of semi-labile organic matter, i.e requiring transformations to be consumed by prokaryotes, is highly related to terrestrial connectivity. The only ecosystems that did not follow these patterns were in a phytoplankton bloom pe-riod and had a high proportion of labile and semi-labile organic matter as their counterparts at equilibrium. Finally, we estimated that semi-labile organic matter could sustain 62% of prokaryotic biomass in lakes and coastal zones. Second, we evaluated the influence of DOM on prokaryotic metabolism and community composition. In order to determine organic matter composition, prokaryotic community composition and metabolic rates, we did three oceanic cruises in the Labrador Sea onboard the Hudson ship. By using spatial abundance distribution modelling of prokaryotes, we identified strong associations between groups of this novel approach and organic matter composition. We also proposed a framework to bridge the gap between prokaryotic diversity, microbial ecology, and biogeochemistry among methods and across scales. Lastly, we compared how prokaryotic communities from different oceanic strata could se-quester carbon. When they consume organic matter, prokaryotes release a small amount in recalcitrant forms. Through this iterative process, called the microbial carbon pump, prokaryotes contribute to carbon sequestration by creating highly recalcitrant compounds that resist further degradation for hundreds of years. We have shown that all prokaryotes enable the microbial carbon pump, but that prokaryotes from deeper strata are more effi-cient. Our results also conclusively show that the rare prokaryotic taxa are key players in the microbial carbon pump. This thesis contributes to better understand the carbon cycle in the Labrador Sea and in all aquatic ecosystems. We proposed a novel framework to relate biogeochemistry, prokaryotic diversity and microbial ecology which has been a challenge for decades. Moreover, we con-clusively showed for the first time that the iterative process of the microbial carbon pump is related to prokaryotic succession. We also show that it happens in all oceanic strata, but that rare prokaryotes from the deep ocean are more efficient to sequester carbon. Better understanding how DOM composition influences prokaryotes is of prime importance as they are the main drivers of the oceanic carbon cycle.