Made available in DSpace on 2015-04-14T13:22:18Z (GMT). No. of bitstreams: 1 456142.pdf: 170016 bytes, checksum: 4b0bc07055b83f04f1d929a6d084f447 (MD5) Previous issue date: 2014-03-10 / BACKGROUND: Substance use-related disorders are characterized by social problems, thought to be the result of social cognition impairments. In particular, the ability to interpret the thoughts of other people - Theory of Mind (ToM) - seems to be impaired. In view of this, this study aimed to investigate ToM functioning in a cocaine dependent (COD) sample. METHOD: This dissertation comprised four studies. The first is a systematic review of ToM in substance users. The second and the third deal with the development of instruments for the ToM assessment. The second is the translation and adaption of the Reading the Mind in the Eyes Test (RMET) into the Brazilian Portuguese, and the third describes the validation of the Hinting task and the ToM Stories task. The fourth work represents the main study of this dissertation the investigation of the ToM of COD women. 30 COD women and 30 healthy controls (HC) matched for sex, age, education, individual income and IQ took part in this study. All participants were assessed with the RMET, the Hinting Task and the ToM stories. Cognitive and clinical factors were also assessed in order to control for possible differences. RESULTS: The systematic review revealed that ToM deficits were present in substance use-related disorders. Besides that, the review indicated that these impairments were related to daily life and clinical features of substance use-related disorders. In addition, this dissertation advanced with regard the technological development, since it guaranteed a translated and adapted Brazilian version of the RMET. By the same token, in the third study the Hinting Task and the ToM Stories were shown to have convergent, predictive, concurrent, discriminative and diagnostic validity. Finally, in the fourth study, COD women were found to have impaired ToM in comparison with HC. Additionally, correlations indicated ToM was negatively associated with dependence chronicity. CONCLUSION: Results were consistent with the published literature, suggesting that COD like other drug dependence disorders, is associated with ToM deficits. In view of the results that suggested an association between ToM and social and clinical outcomes, we have proposed a framework in which there is a bidirectional, facilitative relationship between drug use and ToM impairments. The implications of the results for future research and potential interventions based on targeting the psychosocial problems found to be impaired in substance use disorders are discussed / INTRODU??O: Transtornos relacionados ao uso de subst?ncias s?o caracterizados por problemas sociais. Acredita-se que a origem de tais comprometimentos se deva a d?ficits em fun??es da cogni??o social. Em particular, a Teoria da Mente (ToM) capacidade de inferir e interpretar os pensamentos de outras pessoas parece estar prejudicada em dependentes qu?micos. Portanto, o objetivo deste trabalho foi investigar a ToM em uma amostra de mulheres dependentes de coca?na. M?TODO: Esta disserta??o ? composta por quarto artigos. O primeiro ? uma revis?o sistem?tica sobre a ToM em usu?rios de drogas. O segundo e terceiro foram dedicados ao desenvolvimento de instrumentos para a avalia??o da ToM. O segundo ? a tradu??o e a adapta??o ao portugu?s brasileiro do Reading the Mind in the Eyes Test (RMET), e o terceiro ? a valida??o do Hinting Task e do ToM Stories. O quarto trabalho representa o principal objetivo da disserta??o investigar a ToM de mulheres dependentes de coca?na. Participaram 30 mulheres com diagn?stico de depend?ncia de coca?na e 30 mulheres saud?veis, sendo os grupos pareados por sexo, idade, anos de estudo, renda e QI. Todas participantes responderam ao RMET, ao Hinting Task e ao ToM Stories. As participantes tamb?m foram avaliadas quanto ? sintomatologia psiqui?trica e ao desempenho neuropsicol?gico. RESULTADOS: A revis?o sistem?tica revelou que o uso de ?lcool e drogas ? relacionado a preju?zos na ToM, e que a ToM ? associada com aspectos do dia-a-dia e do curso da depend?ncia. No segundo estudo avan?ou-se no desenvolvimento tecnol?gico garantindo uma adequada vers?o traduzida e adaptada do RMET para o portugu?s brasileiro. Al?m disso, no terceiro artigo revelou-se as propriedades psicom?tricas do Hinting Task e do ToM Stories. Ambas tarefas demonstraram possuir validades convergente, preditiva, concorrente, discriminativa e diagn?stica. Por fim, o quarto estudo revelou que mulheres dependentes de coca?na obtiveram um desempenho significativamente inferior ao do grupo de mulheres saud?veis nas tarefas de ToM. A performance de ToM foi encontrada negativamente correlacionada com o n?vel de severidade da depend?ncia de coca?na. CONCLUS?ES: Os resultados indicam que mulheres dependentes de coca?na possuem desempenho inferior ao de mulheres saud?veis em tarefas de ToM. Tais achados s?o consistentes com os da literatura e corroboram com o fato da ToM estar relacionada com manifesta??es sintom?ticas da doen?a. Com base nos resultados, um modelo ilustrativo da participa??o bidirecional da ToM no curso da depend?ncia qu?mica foi proposto. O modelo sugere que por um lado, preju?zos na habilidade de inferir e interpretar os pensamentos de terceiros vulnerabilizam pessoas ao uso de subst?ncia, e, em contrapartida, o uso de subst?ncias causa eventos t?xicos ao c?rebro que acabam alterando circuitos neurobiol?gicos importantes para a integridade da ToM. As implica??es dos resultados e conclus?es desta disserta??o refor?am o potencial que interven??es que visem a promo??o de habilidades psicossociais possuem no tratamento de transtornos aditivos

Made available in DSpace on 2014-12-17T13:51:34Z (GMT). No. of bitstreams: 1 JulioFDR_TESE_capa_ate_pag119.pdf: 6154675 bytes, checksum: 174bd5531b27bc99f78b05dff75d611d (MD5) Previous issue date: 2012-08-28 / The present study investigated the management of social, environmental and economic sustainability practices employed by 72 oil companies in Rio Grande do Norte state in Brazil associated to Joint Business Network for Enhancing the Competitive Ability of Suppliers of Goods and Services to the Gas and Oil Industry in Rio Grande do Norte (REDEPETRO-RN). Thus, our investigation aimed to determine the extent to which sustainability practices of companies associated to REDEPETRO-RN are developed through their own efforts or influenced by the Triple Helix interorganizational arrangement (governamental organizations, education and research institutions, and industries). The research instrument used was a questionnaire in order to map and characterize the sustainability practices. The research subjects were business owners and managers. The data collected supported the descriptive, correspondence and correlation analyzes. Were identified a greater emphasis of the companies surveyed in developing sustainability practices and greater economic influence of business organizations in the construction of sustainability status. It was concluded with confirmation of thesis of the REDEPETRO-RN arrangement exhibits the characteristics and functioning of a common Interorganizational Cooperative Arrangement, not those of a triple helix interorganizational arrangement, given that the influences exerted for the development of social, environmental and economical sustainability on the part of teaching and research institutions, and government and business organizations do not interact with one another sufficiently to create a virtuous circle of cooperation among the associated companies. By contrast, the Interorganizational Cooperative Arrangement plays an important role in strengthening the competitiveness of companies affiliated to REDEPETRO-RN, by combining different competencies in an attempt at supporting the adoption of sustainability practices, a role reinforced by the scope of PETROBRAS, which, due to its economic importance, has considerable weight in the managerial decisions of associated companies / Esta pesquisa explorou a gest?o de pr?ticas de sustentabilidade social, ambiental e econ?mica de 72 empresas associadas ? Rede de Articula??o Empresarial para Amplia??o da Capacidade Competitiva dos Fornecedores de Bens e Servi?os do Setor de Petr?leo e G?s do Rio Grande do Norte (REDEPETRO-RN), procurando responder em que medida as pr?ticas de sustentabilidade das empresas associadas ? rede s?o explicadas por um esfor?o pr?prio ou s?o influenciadas pelo arranjo interorganizacional do tipo H?lice Tripla configurado pela REDEPETRO-RN. (organiza??es governamentais, institui??es de ensino e pesquisa e organiza??es empresariais). O instrumento utilizado foi o question?rio junto aos empres?rios e gestores. Os dados coletados subsidiaram a realiza??o de an?lises descritivas, de correspond?ncia e correla??o. Identificou-se uma maior ?nfase das empresas no desenvolvimento de pr?ticas de sustentabilidade econ?mica e uma maior influ?ncia das organiza??es empresariais na constru??o desse status de sustentabilidade, confirmando a tese de que o arranjo REDEPETRO-RN apresenta caracter?sticas e funcionamento de um Arranjo Cooperativo Interoganizacional (ACI) comum, n?o apresentando caracter?sticas de um arranjo interorganizacional do tipo H?lice Tripla, dado as influ?ncias exercidas para o desenvolvimento de pr?ticas de sustentabilidade social, ambiental e econ?mica por parte das institui??es de ensino e pesquisa, das organiza??es governamentais e empresariais n?o interagirem entre si suficientemente para configurar um c?rculo virtuoso de coopera??o entre as empresas associadas. No entanto, o Arranjo Cooperativo Interorganizacional tem um papel importante no fortalecimento da competitividade das empresas associadas ? REDEPETRORN, ao reunir diferentes compet?ncias e tentar articul?-las para apoiar entre outras a??es a ado??o de pr?ticas de sustentabilidade, papel valorizado pela for?a da PETROBRAS, que em fun??o de sua import?ncia econ?mica tem um peso consider?vel nas decis?es gerenciais das empresas associadas

Made available in DSpace on 2014-12-17T13:53:24Z (GMT). No. of bitstreams: 1 LuciaFLGC.pdf: 1316397 bytes, checksum: 19d3ef04b094ef0c8d5123a8909ac6c6 (MD5) Previous issue date: 2009-08-28 / Universidade Federal do Rio Grande do Norte / The present inquiry has as main objective to understand the process of formation of the international strategies of the exporting companies of fruits of the RN through the theory of the resource dependence. Aiming at to clarify as the companies they can carry through the process of internationalization through this theory had been study the behavior and economic theories of the process of internationalization of companies. Amongst the economic theories they are distinguished the eclectic paradigm of Dunning (1958), Vernon (1669) through the theory of the cycle of the product and Bucley and Casson (1979) with the theory of the international operations. In the mannering boarding they had been investigated the school of Upsala through Johanson and Valnhe (1977) with the concept of the increasing of the markets and in the distance psychic starts and the interaction of the purchaser-salesman of Hallen and Wiedersheim-Paul (1979). In this perspective it observes main the occured changes in the organization in function of this process, following the rules observed by the gradual ingression in the international market, having as base ways of entrances in the external market used by these companies, in view of the frist phase that the company presents of businesses. Ahead of you analyze of these theories the study searches to analyze the convergence of the concepts proclaimed for the theory of the dependence of resources (PFEFFER; SALANCIK, 1978). and strategies of internationalization of the companies. The research is characterized as qualitative case study which adopts and exploratory and analytical type, retrospective matrix. The adopted strategy is of case study and the unit of analysis consisting of the Finobrasa, pertaining company to the Vicunha Group. The main method of collection of data was halfstructuralized interview allied the documentary research that together had presented an empirical perspective of the internationalization process. The analysis and quarrel of the results understand the description and the interpretation of the one of the information through the technique of analyzes of content. Initially the historical of the exportation of fruits of the Rio Grande do Norte with the focus in the region A?u/Mossor? is presented and after that the information of the Finobrasa are presented as base of the study. The main events are identified that had constituted the phases of the strategical model of the company. It was observed that the dimensions most excellent amongst those proclaimed by the School of Uppsala had been the learning, staffs and the step-starts is sufficiently gifts in the reality of the company, as well as the aspects of strategical alliances since the consolidated relationship of the Vicunha Group create a more solid trajectory in the international market allied the conditions created windows of marked . One understands, therefore, that the investigated process still has base the theoretical theories of the internationalization strategies corroborating for the theoretical convergence of the rules proclaimed for the theory of the dependence of resources. / A presente investiga??o tem como objetivo principal compreender o processo de forma??o das estrat?gias internacionais das empresas exportadoras de frutas do RN atrav?s da teoria da depend?ncia de recurso. Visando esclarecer como as empresas podem realizar o processo de internacionaliza??o atrav?s das teorias comportamentais e econ?micas do processo de internacionaliza??o de empresas. Dentre as teorias econ?micas destacam-se o paradigma ecl?tico de Dunning (1958), Vernon (1669) atrav?s da teoria do ciclo do produto e Bucley e Casson(1979) com a teoria das opera??es internacionais. Na abordagem comportamental foram investigadas a escola de Upsala atrav?s de Johanson e Valnhe (1977) com o conceito do comprometimento crescente dos mercados e a dist?ncia ps?quica e a intera??o do comprador-vendedor de Hallen e Wiedersheim-Paul (1979). Nessa perspectiva observam-se as principais as mudan?as ocorridas na organiza??o em fun??o desse processo, acompanhando os preceitos observados pelo ingresso gradual no mercado internacional, tendo como base modos de entradas no mercado externo utilizados por essas empresas. Diante da analises dessas teorias o estudo busca analisar a converg?ncia dos conceitos apregoados pela teoria da depend?ncia de recursos (PFEFFER; SALANCIK, 1978) como conte?do base da investiga??o aliado aos conceitos de estrat?gias internacionais. A pesquisa caracteriza-se como qualitativa, do tipo explorat?rio e anal?tico, de cunho retrospectivo. A estrat?gia adotada ? a de estudo de caso e a unidade de an?lise constitu?da pela Finobrasa, empresa pertencente ao Grupo Vicunha. O principal m?todo de coleta de dados foi entrevista semi-estruturada aliada a pesquisa documental que juntos apresentaram uma perspectiva emp?rica do processo de internacionaliza??o. A an?lise e discuss?o dos resultados compreendem a descri??o e a interpreta??o do das informa??es atrav?s da t?cnica de analise de conte?do. Inicialmente ? apresentada a contextualiza??o hist?rica da exporta??o de frutas do Rio Grande do Norte com o foco no p?lo A?u/Mossor? e em seguida s?o apresentadas as informa??es da Finobrasa como base norteadora do estudo. S?o identificados os eventos marcantes que constitu?ram as fases do modelo estrat?gico da empresa. Observou-se que as dimens?es mais relevantes dentre aquelas apregoadas pela Escola de Uppsala foram a aprendizagem, pessoais e o gradualismo s?o bastante presentes na realidade da empresa, bem como os aspectos de alian?as estrat?gicas j? que o relacionamento consolidado do grupo Vicunha oportunizou uma trajet?ria mais s?lida no mercado internacional aliada as condi??es geradas pelas janelas de marcado . Entende-se, portanto, que o processo de internacionaliza??o possui fundamenta??o nas teorias te?ricas das estrat?gias de internacionaliza??o corroborando ainda para a converg?ncia conceitual da teoria da depend?ncia de recursos.

Made available in DSpace on 2014-12-17T14:09:13Z (GMT). No. of bitstreams: 1 CarlosAP_TESE.pdf: 2741254 bytes, checksum: fe78169b5a73168fa375bac9aba3edbd (MD5) Previous issue date: 2011-12-19 / This work addresses the relationship between University-Firm aims to understand the model of shared management of R&D in petroleum of Petrobras with UFRN. This is a case study which sought to investigate whether the model of cooperation established by the two institutions brings innovation to generate technical-scientific knowledge and contribute to the coordination with other actors in the promotion of technological innovation. In addition to desk research the necessary data for analysis were obtained by sending questionnaires to the coordinators of projects in R&D at the company and university. Also, interviews were conducted with subjects who participated in the study since its inception to the present day. This case study were analysed through the Resource-Based View and Interorganizational Networks theory. The sample data also stands that: searches were aligned to the strategic planning and that 29% of R&D projects have been successful on the scope of the proposed objectives (of which 11% were incorporated into business processes); which was produced technical and scientific knowledge caracterized by hundreds of national and international publications; thesis, dissertations, eleven patents, and radical and incremental innovations; the partnership has also brought benefits to the academic processes induced by the improved infrastructure UFRN and changing the "attitude" of the university (currently with national prominence in research and staff training for the oil sector). As for the model, the technical point of view, although it has some problems, it follows that it is appropriate. From the viewpoint of the management model is criticized for containing an excess of bureaucracy. From the standpoint of strategic allocation of resources from the legal framework needs to be reassessed, because it is focused only on the college level and it is understood that should also reach the high school given the new reality of the oil sector in Brazil. For this it is desirable to add the local government to this partnership. The set of information leads to the conclusion that the model is identified and named as a innovation of organizational arrangement here known as Shared Management of R&D in petroleum of Petrobras with UFRN. It is said that the shared management model it is possible to exist, which is a simple and effective way to manage partnerships between firms and Science and Technology Institutions. It was created by contingencies arising from regulatory stand points and resource dependence. The partnership is the result of a process of Convergence, Construction and Evaluation supported by the tripod Simplicity, Systematization and Continuity, important factors for its consolidation. In practice an organizational arrangement was built to manage innovative university-industry partnership that is defined by a dyadic relationship on two levels (institutional and technical, therefore governance is hybrid), by measuring the quarterly meetings of systematic and standardized financial contribution proportional to the advancement of research. These details have led to the establishment of a point of interaction between the scientific and technological-business dimension, demystifying they are two worlds apart / Este trabalho aborda a rela??o Universidade-Empresa e tem como objetivo compreender o modelo de Gest?o Compartilhada de P&D da Petrobras com a UFRN. Trata-se de um estudo de caso em que se procurou investigar se o modelo de coopera??o estabelecido pelas duas institui??es agrega inova??o, se gera conhecimento t?cnico-cient?fico e se contribui para a articula??o com outros atores locais na promo??o da inova??o tecnol?gica. Al?m da pesquisa documental os dados necess?rios ? an?lise foram obtidos atrav?s do envio de question?rios aos coordenadores de projetos de P&D da empresa e da universidade. Tamb?m foram realizadas entrevistas com sujeitos que participaram do processo estudado desde o seu in?cio at? os dias atuais. Este estudo de caso foi analisado teoricamente atrav?s da Vis?o de Recursos e de Redes Interorganizacionais. Os dados amostrais tamb?m permitiram observar que: as pesquisas estavam alinhadas ao planejamento estrat?gico da empresa e que 29% dos projetos de P&D tiveram sucesso quanto ao alcance dos objetivos propostos (dos quais 11% foram incorporados aos processos da empresa); que foi produzido conhecimento t?cnico-cient?fico registrado por centenas de publica??es nacionais e internacionais, teses, disserta??es, onze patentes, e por inova??es tecnol?gicas radicais e incrementais; que a parceria tamb?m trouxe benef?cios aos processos acad?micos induzidos pela melhoria na infraestrutura da UFRN e pela mudan?a de atitude da universidade (atualmente com destaque nacional na pesquisa e forma??o de quadros para o setor petr?leo). Quanto ao modelo, do ponto de vista t?cnico, embora tenha alguns problemas, deduz-se que ele ? adequado. Do ponto de vista de gest?o o modelo ? criticado por conter um excesso de burocracia. Do ponto de vista estrat?gico a destina??o dos recursos oriundos do marco legal necessita ser reavaliada, pois est? focada somente no n?vel superior e entende-se que deva chegar tamb?m ao ensino m?dio dada ? nova realidade do setor petr?leo no Brasil. Para isso ? desej?vel agregar o poder p?blico local na parceria. O conjunto das informa??es levam ? concluir que o modelo identificado e nomeado ? uma inova??o de arranjo organizacional aqui denominado de Gest?o Compartilhada de P&D em Petr?leo da Petrobras com a UFRN. Afirma-se que o modelo de Gest?o Compartilhada ? poss?vel existir, que ? uma forma simples e eficaz para o gerenciamento de parcerias entre empresas e Institui??es de Ci?ncia e Tecnologia. Ele foi criado por conting?ncias decorrentes do marco regulat?rio e por depend?ncia de recursos. A parceria ? resultante de um processo de Converg?ncia, Constru??o e Avalia??o apoiado no trip? Simplicidade, Sistematiza??o e Continuidade, fatores importantes para a sua consolida??o. Na pr?tica foi constru?do um arranjo organizacional inovador para gerir parcerias universidade-empresa que ? definido por uma rela??o di?dica em dois n?veis (institucional e t?cnico, portanto a governan?a ? h?brida), por reuni?es de medi??o trimestrais sistem?ticas padronizadas e contrapartida financeira proporcional ao avan?o da pesquisa. Estes detalhes conduziram ao estabelecimento de um ponto de intera??o entre as dimens?es cient?fica e tecnol?gica-empresarial, desmitificando que sejam dois mundos distantes

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2017-06-02T23:08:22Z No. of bitstreams: 1 JeanneRaquelDeAndradeFranco_DISSERT.pdf: 3675339 bytes, checksum: 97a2dabc11a0348c6acf6db2de294e5d (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2017-06-12T19:27:50Z (GMT) No. of bitstreams: 1 JeanneRaquelDeAndradeFranco_DISSERT.pdf: 3675339 bytes, checksum: 97a2dabc11a0348c6acf6db2de294e5d (MD5) / Made available in DSpace on 2017-06-12T19:27:50Z (GMT). No. of bitstreams: 1 JeanneRaquelDeAndradeFranco_DISSERT.pdf: 3675339 bytes, checksum: 97a2dabc11a0348c6acf6db2de294e5d (MD5) Previous issue date: 2017-02-14 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (CAPES) / Manguezais s?o ecossistemas costeiros e estuarinos que pertencem a climas quentes e temperados ou tropicais ?midos, s?o dominados por esp?cies lenhosas, fornecem importantes bens e servi?os ecossist?micos e possuem valor socioecon?mico. Os manguezais s?o sens?veis a dist?rbios e est?o em constante processo de degrada??o devido ? carcinicultura e ao desenvolvimento urbano. Intera??es entre indiv?duos vegetais podem resultar em competi??o e facilita??o interferindo no crescimento, no padr?o de distribui??o e na sobreviv?ncia das plantas, al?m de modificar caracter?sticas f?sico-qu?micas do ambiente. Vari?veis abi?ticas e bi?ticas interagem permitindo an?lise da adapta??o das esp?cies em diferentes condi??es ambientais, podendo tamb?m inferir sobre a intensidade de degrada??o. O objetivo geral do estudo foi identificar os principais fatores limitantes no crescimento e na sobreviv?ncia de plantas de Rhizophora mangle L. (Rhizophoraceae) em dois ambientes dominados pela esp?cie e localizados em ?rea de carcinicultura, sendo um com presen?a de ?rvores e copa fechada, e outro aberto com plantas jovens e subarbustivas. Foram realizados dois monitoramentos com sele??o de parcelas e plantas em cada ambiente, totalizando 90 indiv?duos, para quantificar o crescimento ao longo do tempo atrav?s de medidas da altura, n?mero de ramos e di?metro a 30 cm do solo. Para as vari?veis abi?ticas foram feitas medidas da temperatura e pH do solo, luminosidade, salinidade, velocidade do vento, temperatura do ar e penetrabilidade do solo nas parcelas de cada ambiente aberto e fechado por 12 meses. Indiv?duos adultos de R. mangle foram competidores interferindo no crescimento de plantas jovens da mesma esp?cie atrav?s da limita??o de luz e do estresse advindo do ac?mulo de sedimentos. Em ambiente aberto, com plantas jovens apresentando mesma idade e distribu?das de forma agregada, ocorreu facilita??o com redu??o de condi??es estressantes devido ? maior incid?ncia de radia??o solar e temperatura desse ambiente, e tamb?m competi??o atrav?s de alta densidade de plantas. Devido a essas intera??es positivas e negativas agindo simultaneamente, o efeito final da densidade-depend?ncia no crescimento de plantas do ambiente aberto foi neutro. Al?m disso, temperaturas m?dias de 30?C, pH do solo com valores entre 5,5 e 6,5 e salinidade com cerca de 35 ppm foram fatores que beneficiaram o crescimento das plantas ao longo do tempo em ambiente aberto atrav?s da fotoss?ntese, de adapta??es fisiol?gicas e poss?vel melhor assimila??o de nutrientes do solo. Esses resultados ajudaram a entender as caracter?sticas ambientais que facilitam e interferem na recupera??o de ?reas degradadas pela carcinicultura. / Mangroves are ecosystems coastal and estuarine belonging to warm and temperate climates and wet tropics, mangroves are dominated by woody species, provide important ecosystem goods and services and have socioeconomic value. Mangroves are sensitive to disturbances and are constantly being degraded due to shrimp farming and to urban development. Interactions between plant individuals may result in competition and facilitation by interfering on the plant growth, pattern of distribution and plant survival, besides modifying physical-chemical characteristics of the environment. Abiotic and biotic variables interact allowing the analysis of the adaptation of the species in different environmental conditions and also about the intensity of degradation. The main objective of the study was to identify the main limiting factors on the growth and survival of Rhizophora mangle L. (Rhizophoraceae) plants in two environments dominated by this specie and located in the shrimp farming area, one with trees and closed canopy, and another open with young and sub-shrub plants. Two monitoring were carried out with selection of plots and plants in each environment, totaling 90 individuals, to quantify the growth over time by means of measures of height, number of branches and diameter at 30 cm. For the abiotic variables, measurements of soil temperature and pH, luminosity, salinity, wind velocity, air temperature and soil penetrability were taken in the plots of each open and closed environment for 12 months. Adult individuals of R. mangle were competitors interfering in the growth of young plants of the same species through the limitation of light and of the stress coming from the accumulation of sediments. In the open environment, with young plants presenting the same age and distributed in an aggregated way, facilitation occurred with reduction of stressful conditions due to the higher incidence of solar radiation and temperature of this environment, and also competition through high density of plants. Due to these positive and negative interactions acting simultaneously, the final effect of density dependence on plant growth of the open environment was neutral. However, mean temperatures of 30?C, soil pH values between 5.5 and 6.5 and salinity with about 35 ppm were factors that benefited the growth of the plants over time in open environment through photosynthesis, of physiological adaptations and possible better assimilation of soil nutrients. These results helped to understand the environmental characteristics that facilitate and interfere the recovery of areas degraded by shrimp farming.

Made available in DSpace on 2014-12-17T15:38:53Z (GMT). No. of bitstreams: 1 HeloisaKCS_DISSERT.pdf: 1122622 bytes, checksum: deb681a00b9e4783f5bbe27f6cccc4a1 (MD5) Previous issue date: 2011-05-20 / This study has as main objectives to translate and to adapt the MCMI-III to brazilian Portuguese, as well as investigate and analyze the involved modifications in the Alcohol Dependence Scale concerning to the results obtained on the validity and on the process of adaptation to Brazil. The inventory was translated and, posteriorly, applied on people with different reading levels to certify that the items are understandable to public in general, from diverse places of the country, divided into clinical and non-clinical groups. Were evaluated 2855 subjects between the ages of 18 and 85 years old, male and female, resident and dwellers of Brazilian cities. The application methods were face-to-face and computerized. Results showed that the clinical group presented significant differences between the means in comparison to the non-clinical group. Through the application of the General Health Questionnaire were developed studies related to the achievement of convergent validity and its results pointed to the relation between the instrument scores and the MCMI-III. The Alcohol Dependence Scale analysis indicated that people who reported abusive use of alcohol had highest scores, indicating adequacy of the instrument on identifying manifestation of disorders and syndromes. Nevertheless, further studies are necessary to the establishment of normative patterns to the Brazilian sample / Esse estudo tem como principais objetivos traduzir e adaptar o MCMI-III para o portugu?s brasileiro, bem como investigar e analisar as modifica??es envolvidas na escala de Depend?ncia de ?lcool do instrumento original em rela??o aos resultados obtidos na validade e no processo de adapta??o para o Brasil. O invent?rio foi traduzido e posteriormente administrado em pessoas com n?veis variados de leitura para certificar-se de que os itens pudessem ser compreendidos pelo p?blico em geral, de diversos locais do pa?s, divididos em grupo cl?nico e grupo n?o cl?nico. Foram avaliados 2855 sujeitos com idades de 18 a 85 anos, dos sexos feminino e masculino, residentes e domiciliados em cidades brasileiras. As formas de administra??o foram modo presencial e modo informatizado. Os resultados demonstraram que o grupo cl?nico apresentou diferen?as significativas entre as m?dias com rela??o ao grupo n?o cl?nico. Por meio da administra??o do Question?rio Geral de Sa?de desenvolveram-se estudos quanto ? obten??o de validade convergente cujos resultados apontaram a rela??o entre os escores desse instrumento e o MCMI-III. A an?lise da escala de Depend?ncia do ?lcool apontou que pessoas que relataram ter feito uso abusivo de ?lcool pontuaram mais alto, indicando a adequa??o do instrumento em identificar manifesta??es de transtornos e s?ndromes. Contudo, ainda s?o necess?rios estudos posteriores para estabelecimento de padr?es normativos para a amostra brasileira

Submitted by Sandra Pereira (srpereira@ufrrj.br) on 2017-01-09T10:11:25Z No. of bitstreams: 1 2014 - Joel Quintino de Oliveira Junior.pdf: 986333 bytes, checksum: 680ec4322bce52cb9979155c6978ea36 (MD5) / Made available in DSpace on 2017-01-09T10:11:25Z (GMT). No. of bitstreams: 1 2014 - Joel Quintino de Oliveira Junior.pdf: 986333 bytes, checksum: 680ec4322bce52cb9979155c6978ea36 (MD5) Previous issue date: 2014-02-28 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES / Leguminosae comprises a wide variety of species that form symbiosis with mycorrhizal fungi (AMF), and mostly with nitrogen fixing bacteria. Within this frame fits the group Pitadenia encompassing genres: Mimosa , Piptadenia , Parapiptadenia , Anadenathera , Pseudopiptadenia , Microlobius , Stryphnodendron and Adenopia , comprising over 500 species, of which most are found in the New World , especially in Brazil . Their habits vary from tree and herbaceous species to thrive in flooded, dry, high altitude grasslands , savanna ecosystems among other areas . Are well known and used in the rehabilitation of degraded soils by their aggressiveness and ability to grow under adverse soil conditions. Results indicate that in some species of this group only nodulated with the presence of mycorrhizal fungi. Legumes use for the realization of these two symbioses very similar molecular mechanisms and some of leguminous species from the subfamily Mimosoideae show atypical and high potential exploration of evolutionary symbiosis between the two skills. The objective of this work is to investigate and confirm this dependence of the presence of arbuscular mycorrhizal fungi for nodulation and nitrogen fixation in species group Piptadenia nodulated by Burkholderia sp . under controlled conditions / A fam?lia Leguminosae compreende um imensa variedade de esp?cies que formam simbiose com fungos micorr?zicos arbusculares (FMAs) e, em sua grande maioria, com bact?rias fixadoras de nitrog?nio. Dentro desse quadro se encaixa o grupo de Pitadenia que engloba os g?neros: Mimosa, Piptadenia, Parapiptadenia, Anadenathera, Pseudopiptadenia, Microlobius, Stryphnodendron e Adenopia, compreendendo mais de 500 esp?cies, sendo que a maioria delas ? encontrada no novo mundo, em especial no Brasil. Seus h?bitos variam desde esp?cies herb?ceas at? arb?reas e se desenvolvem em ?reas alagadas, secas, campos de altitude, cerrado entre outros ecossistemas. S?o bem conhecidas e utilizadas na reabilita??o de solos degradados por sua agressividade e capacidade de se desenvolver nas mais adversas condi??es ed?ficas. Resultados indicam que em algumas esp?cies desse grupo s? nodulariam com a presen?a de fungos micorr?zicos. As leguminosas usam para a realiza??o dessas duas simbioses mecanismos moleculares muito similares e algumas dessas esp?cies de leguminosas nativas da subfam?lia Mimosoideae mostram habilidades at?picas e com alto potencial de explora??o evolucion?ria entre as duas simbioses. O objetivo deste trabalho ? investigar e confirmar essa depend?ncia da presen?a de fungos micorr?zicos arbusculares para a nodula??o e fixa??o biol?gica de nitrog?nio em esp?cies do grupo de Piptadenia noduladas por Burkholderia sp. sob condi??es controladas