Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2018-03-13T12:59:15Z No. of bitstreams: 1 LucimarFernandesDeLima_DISSERT.pdf: 3667054 bytes, checksum: be4f9f2dbcf2b03cd194286f1b16b1bc (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2018-03-19T16:01:48Z (GMT) No. of bitstreams: 1 LucimarFernandesDeLima_DISSERT.pdf: 3667054 bytes, checksum: be4f9f2dbcf2b03cd194286f1b16b1bc (MD5) / Made available in DSpace on 2018-03-19T16:01:48Z (GMT). No. of bitstreams: 1 LucimarFernandesDeLima_DISSERT.pdf: 3667054 bytes, checksum: be4f9f2dbcf2b03cd194286f1b16b1bc (MD5) Previous issue date: 2017-11-17 / A pediculose ? caracterizada pela infesta??o por Pediculus humanus capitis no homem. Desde o ano de 1963 a pediculose vem crescendo significativamente, principalmente, no ambiente escolar e nos centros urbanos. Isso decorre da aglomera??o de pessoas, tendo em vista a facilidade com que ? transmitida. Os procedimentos terap?uticos atuais apresentam efeitos colaterais, oferecendo risco ? sa?de do hospedeiro e contribuindo para a resist?ncia do parasita aos f?rmacos utilizados, elevando os custos com o tratamento. Os autores se propuseram a desenvolver um produto alternativo at?xico, biocompat?vel, biodegrad?vel e que desfavore?a a muta??o gen?tica apresentada pelos piolhos aos tratamentos dispon?veis atualmente, tudo isso suportado na gest?o da inova??o. Para gerir o projeto foram preparadas amostras do hidrogel ? dispers?o de quitosana em solu??o aquosa de ?cido ac?tico com dissolu??o pr?via do metilparabeno e adi??o de ess?ncia e glicerina - para posterior uso no ensaio in vitro e caracteriza??o f?sico-qu?mica do produto. A caracteriza??o f?sico-qu?mica das amostras foi realizada atrav?s de an?lise organol?ptica, da an?lise reol?gica e aferi??o do pH. A valida??o metodol?gica do produto foi realizada atrav?s do ensaio in vitro, que envolveu a sele??o das amostras, a coleta e padroniza??o de mechas de cabelo, exame e classifica??o da pediculose e, por fim, a aplica??o e constata??o da efici?ncia do produto. A gest?o de custo foi realizada a partir dos c?lculos de custos fixos e vari?veis, necess?rios ? produ??o do hidrogel. Foi realizado o dep?sito do pedido de patente junto ao Instituto Nacional da Propriedade Industrial (INPI) sob o registro n? BR 1020150251793 para garantir o direito ? propriedade intelectual sobre o produto. Os resultados obtidos durante a caracteriza??o f?sico-qu?mica do hidrogel revelaram estabilidade na colora??o e no odor durante os 60 dias em que o hidrogel foi armazenado. Observou-se no estudo reol?gico o comportamento caracter?stico de fluidos pseudopl?sticos das dispers?es de quitosana preparadas, dada ? redu??o observada na viscosidade em fun??o da eleva??o da taxa de cisalhamento. O percentual de remo??o dos ovos na amostra tratada com o hidrogel foi maior (83% dos ovos na primeira aplica??o) do que o observado na exclusiva aplica??o de solu??o de ?cido ac?tico (32%). O tratamento utilizando o produto proposto, denominado hidrogel, pode ser disponibilizado a um pre?o competitivo, tendo em vista a m?dia de pre?os praticados pelos concorrentes. / Pediculosis is characterized by infestation by Pediculus humanus capitis in humans. Since 1963 pediculosis has been growing significantly, mainly in the school environment and in urban centers. This is due to the agglomeration of people, given the ease with which it is transmitted. The current therapeutic procedures present side effects, offering a risk to the health of the host and contributing to the resistance of the parasite to the drugs used, increasing costs with the treatment. The authors set out to develop an alternative, non-toxic, biocompatible, biodegradable product that would undermine the genetic mutation presented by lice to currently available treatments, all supported in the management of innovation. To manage the project, samples of the hydrogel - chitosan dispersion in aqueous solution of acetic acid were prepared with previous dissolution of methylparaben and addition of essence and glycerine - for later use in the in vitro test and physicochemical characterization of the product. The physico-chemical characterization of the samples was performed through organoleptic analysis, rheological analysis and pH measurement. The methodological validation of the product was performed through the in vitro test, which involved sample selection, collection and standardization of hair strands, examination and classification of pediculosis and, finally, application and verification of product efficiency. The cost management was carried out from the calculations of fixed and variable costs, necessary for the production of the hydrogel. The filing of the patent application was filed with the National Institute of Industrial Property (INPI) under registry number BR 1020150251793 to guarantee the right to intellectual property on the product. The results obtained during the physico-chemical characterization of the hydrogel revealed staining and odor stability during the 60 days in which the hydrogel was stored. It was observed in the rheological study the characteristic behavior of pseudoplastic fluids of the prepared chitosan dispersions, due to the observed reduction in viscosity as a function of the elevation of the shear rate. The percentage of egg removal in the hydrogel treated sample was higher (83% of the eggs in the first application) than that observed in the application of acetic acid solution (32%). The treatment using the proposed product, called hydrogel, can be made available at a competitive price, given the average prices of concurrents.

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2016-12-29T16:36:10Z No. of bitstreams: 1 AugustoCesarPereiraDaSilvaMontalvao_TESE.pdf: 3356285 bytes, checksum: 91694fd2667b473c4c31ff9be48f2171 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2017-01-02T18:07:35Z (GMT) No. of bitstreams: 1 AugustoCesarPereiraDaSilvaMontalvao_TESE.pdf: 3356285 bytes, checksum: 91694fd2667b473c4c31ff9be48f2171 (MD5) / Made available in DSpace on 2017-01-02T18:07:35Z (GMT). No. of bitstreams: 1 AugustoCesarPereiraDaSilvaMontalvao_TESE.pdf: 3356285 bytes, checksum: 91694fd2667b473c4c31ff9be48f2171 (MD5) Previous issue date: 2016-07-04 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (CAPES) / Este trabalho tem como objetivo propor uma nova estrutura capaz de converter sinais linearmente polarizados gerados por uma antena de microfita em sinais circularmente polarizados, para duas bandas de opera??o (2,45 GHz e 5,8 GHz), para aplica??o em leitores RFID port?teis, usando duas metasuperf?cies miniaturizadas. Para poder estudar o comportamento da estrutura proposta, s?o utilizados tr?s layouts diferentes. Primeiro s?o feitos testes iniciais de simula??o, utilizando a primeira metasuperf?cie acoplada ? antena. Em seguida, a antena ? testada acoplada ? segunda metasuperf?cie. E posteriormente a antena ? acoplada ?s duas metasuperf?cies. As estruturas s?o analisadas numericamente atrav?s do Ansoft HFSS? e para validar esses resultados, as estruturas s?o caracterizadas experimentalmente. S?o apresentadas as caracter?sticas de transmiss?o simuladas e medidas. Os resultados experimentais mostram uma boa concord?ncia com os resultados simulados. A estrutura aqui proposta apresenta a vantagem de atender ?s caracter?sticas desejadas nas duas bandas de interesse, conseguindo obter excelentes valores de largura de banda de perda de retorno, bem como de raz?o axial, sendo uma estrutura simples de ser constru?da e com baixo custo. / This work aims to propose a new structure able to convert signals linearly polarized generated by a microstrip antenna for circularly polarized signals at two operating bands (2.45 GHz and 5.8 GHz), for use in portable RFID readers, using two miniaturized metasurfaces. In order to study the behavior of the proposed structure, three different layouts are used. First initial simulation tests are made, using the first metasurface coupled to the antenna. Then, the antenna is tested coupled to the second metasurface. Posteriorly the antenna is coupled to the two metasurfaces. The structures are analyzed numerically through ANSYS HFSS?, and to validate these results, the structures are characterized experimentally. The characteristics of transmissions simulated and measures are presented. A good agreement between simulated and measured results was obtained. The structure proposed here has the advantage to meet desired characteristics in two bands of interest, obtaining excellent values of return loss wideband, as well as the axial ratio, being a simple structure to be constructed and with low cost.

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2017-02-22T20:31:54Z No. of bitstreams: 1 PedroRodriguesGoncalves_DISSERT.pdf: 1326967 bytes, checksum: 123099c1075311488f36398a8d427a43 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2017-03-08T23:00:44Z (GMT) No. of bitstreams: 1 PedroRodriguesGoncalves_DISSERT.pdf: 1326967 bytes, checksum: 123099c1075311488f36398a8d427a43 (MD5) / Made available in DSpace on 2017-03-08T23:00:44Z (GMT). No. of bitstreams: 1 PedroRodriguesGoncalves_DISSERT.pdf: 1326967 bytes, checksum: 123099c1075311488f36398a8d427a43 (MD5) Previous issue date: 2016-10-25 / O Departamento de Recursos Humanos ? o setor respons?vel por todo acompanhamento e desenvolvimento profissional dos colaboradores, sendo o desenvolvimento por meio de treinamentos e capacita??es, um dos suportes para a melhoria da gest?o de pessoas no servi?o p?blico. Esse estudo fundamentou-se na legisla??o federal, decretos 5.707/06 e 5.825/06, que estabelecem crit?rios de desenvolvimento cont?nuo dos servidores p?blicos federais bem como do Programa de Capacita??o e Aperfei?oamento adotado pela Universidade Federal do Rio Grande do Norte - UFRN. O objetivo geral desse estudo foi identificar os efeitos diretos e espec?ficos, das a??es de capacita??o e treinamento, voltados ? ?rea administrativa, sobre o comportamento do servidor em seu cargo, dentro da Universidade Federal do Rio Grande do Norte, e propor a implanta??o de um instrumento de avalia??o de impacto em profundidade no ambiente de trabalho. Trata-se de um estudo de natureza descritiva, explorat?ria, de abordagem qualitativa e quantitativa. A coleta dos dados ocorreu por meio de um question?rio com perguntas fechadas. A amostra constituiu-se de 108 colaboradores do campus central, sendo 88 t?cnicos administrativos e 20 chefes de unidades administrativas. Os resultados apresentados demonstraram a repercuss?o positiva do programa de capacita??o da institui??o e a contribui??o da forma??o permanente dos servidores. Evidenciaram-se tamb?m os altos ?ndices de satisfa??o nas respostas relacionados ? aplicabilidade dos conhecimentos adquiridos ap?s capacita??o, bem como os efeitos diretos e espec?ficos das a??es de capacita??o e treinamento na ?rea administrativa interferindo de forma positiva no comportamento do servidor em seu cargo. Na an?lise da confiabilidade do question?rio, obteve-se um alfa de Cronbach acima de 0,70, demonstrando, assim, consist?ncia dos dados classificada como satisfat?ria no instrumento de pesquisa. O estudo contribuiu na proposi??o de um modelo de avalia??o de impacto em profundidade adaptado ? realidade da Institui??o. / The Human Resources Department is responsible for monitoring industry and professional development of employees, and the development through training and skills, one of the supports for the improvement of personnel management in the public service. This study was based on federal legislation, decrees 5,707/06 and 5,825/06, establishing criteria for continuos development of federal public servants, as well as training and Development Program adopted by the Federal University of Rio Grande do Norte-UFRN. The general objective of this study was to identify the direct and specific effects of the training actions, aimed at administrative area, about the behavior of the server in your office, in the Federal University of Rio Grande do Norte, and finally draw up and propose the implementation of a tool for in-depth impact assessment in the workplace. This was a study of a descriptive nature, exploratory, and qualitative and quantitative approach. The data collection took place by means of a questionnaire with closed questions. The sample consisted of 108 employees of central campus, 88 administrative technicians and 20 managers of administrative units. The results demonstrated the positive impact of the training program of the institution and the contribution permanent of the servers. Showed the high levels of satisfaction in the responses related to the applicability of the knowledge gained after training, as well as the direct and specific effects of the training actions in the administrative area clearly interfering positively in the server behavior in Office. Statistical analysis showed a Cronbach's Alpha's up 0.70, demonstrating thus data consistency classified as satisfactory in the search tool. The study contributed to the proposition of a model of in-depth impact assessment adapted to the reality of the institution.

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2017-03-28T19:42:06Z No. of bitstreams: 1 JoseEdmilsonFelipeDaSilva_TESE.pdf: 1597484 bytes, checksum: 1bb66c29e8e035a7ab6b98596bf49a54 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2017-03-29T21:46:43Z (GMT) No. of bitstreams: 1 JoseEdmilsonFelipeDaSilva_TESE.pdf: 1597484 bytes, checksum: 1bb66c29e8e035a7ab6b98596bf49a54 (MD5) / Made available in DSpace on 2017-03-29T21:46:43Z (GMT). No. of bitstreams: 1 JoseEdmilsonFelipeDaSilva_TESE.pdf: 1597484 bytes, checksum: 1bb66c29e8e035a7ab6b98596bf49a54 (MD5) Previous issue date: 2016-07-29 / Esta pesquisa de abordagem qualitativa tem por objeto de estudo as pr?ticas e narrativas no curr?culo de uma escola municipal decorrente da implementa??o de pol?ticas p?blicas de inclus?o no campo educacional natalense por meio dos CBRS ? Complexos Bilingues de Refer?ncias para Surdos. Com fundamento na abordagem s?cio-hist?rica (FREITAS, 2003); e aporte em Bakhtin (1995), Vygotsky (1998) e nos Estudos Culturais (JOHNSON, 1999; MATTELART, NEVEU, 2004) com ?nfase nos Estudos Surdos (DORZIAT, 2009; 2011; SKLIAR, 2011; S?, 2011; 201?; LODI, MELO; FERNANDES, 2012). Como aportes te?ricos tamb?m foram importantes as contribui??es sobre o Curr?culo Escolar (SILVA, 1995), Educa??o de Surdos (LOPES, 2007; 2013) e Comunidade e Cultura Surda (S?NCHEZ, 1990; LANE, 1997; SACKS, 2010). A pesquisa foi realizada entre o segundo semestre de 2014 e o primeiro semestre de 2015, em um dos CBRS da rede municipal de ensino de Natal/RN, tendo como objetivo geral a an?lise do curr?culo da E. M. Luiz Maranh?o por meio das a??es e enunciados de parte de seus profissionais envolvidos com a educa??o de alunos surdos e como objetivos espec?ficos identificar a concep??o de sujeito surdo na proposta dos Complexos e a finalidade da educa??o desses sujeitos nesses espa?os. Como instrumentos, foram utilizados o roteiro de entrevista e os question?rios e como procedimentos de pesquisas a observa??o participante, as entrevistas coletivas e a an?lise documental. Os dados foram analisados com base na An?lise de Conte?do (RAMPAZZO, 2002; FRANCO, 2005; BARDIN, 2011). A an?lise dos dados fez emergir as contradi??es e os descompassos nas narrativas e nas pr?ticas curriculares. Diante dos dados analisados, conclu?mos que, nos anos iniciais no CBRS de Cidade Nova, Zona Oeste de Natal/RN, os fundamentos e as pr?ticas manifestas v?o de encontro ? proposta de educa??o bil?ngue do Movimento Surdo. A maioria dos colaboradores, como se pode constatar, concebe o sujeito surdo como deficiente e a educa??o bil?ngue como mais um desdobramento da educa??o de pessoas com necessidades especiais. / This qualitative research approach aims to study both practices and narratives in the curriculum of a municipal public school by the implementation of public inclusion policies in natalense educational field through Bilinguals References Complexes for Deaf people ? Complexos Bil?ngues de Refer?ncia para Surdos (CBRS). It was Based on social ? historical methodological (FREITAS, 2003), and supported in Bakhtin (1995), Vygotsky (1998) and on social cultural studies (JOHNSON, 1999; MATTELART; NEVEU, 2004) with emphasis on deaf studies (DORZIART, 2009; 2011; SKLIAR, 2011; S?, 2011; 2012; LODI; MELO; FERNANDES, 2012). As theoretical support it was also important the contribution on the school curriculum (SILVA, 1995), deaf people education (LOPES, 2007; 2013) and community and deaf people culture (S?NCHEZ, 1990; LANE, 1997; SACKS, 2010). The research was carried out between the second half of 2014 and the first half of 2015 in one of the CBRS in Municipal educational system from Natal/RN. By aiming this way, the general curriculum analysis of Luiz Maranh?o Municipal School through actions and announced of parts of its professionals involved with deaf students? education and as specific aim to identify the deaf subject conception of proposals from the complexes and goals of education of these subjects in these spaces. For developing this paper. However, it was used tools such as interviews and questionnaires and as a research procedure the participant observation and group interviews. The data analyzed were based on content analysis (RAMPAZZO, 2002; FRANCO, 2005; BARDIN, 2011). The data analysis brought up contradictions and differences on narratives and curricular practices. Before the analyzed data we came into the conclusion that in the first grades of CBRS in Cidade Nova, West Zone of Natal/RN, the fundamentals and demonstrated practices are not in accordance with the proposal of bilingual education of the Deaf movement and Deaf studies. The majority of collaborators see the deaf as a disabled person and bilingual education like one more expansion of people?s education with special needs.

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2017-04-17T22:47:11Z No. of bitstreams: 1 AllanSolanoSouza_TESE.pdf: 2508304 bytes, checksum: 34ca5921654510df283cf7045fe5783c (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2017-04-19T21:58:44Z (GMT) No. of bitstreams: 1 AllanSolanoSouza_TESE.pdf: 2508304 bytes, checksum: 34ca5921654510df283cf7045fe5783c (MD5) / Made available in DSpace on 2017-04-19T21:58:44Z (GMT). No. of bitstreams: 1 AllanSolanoSouza_TESE.pdf: 2508304 bytes, checksum: 34ca5921654510df283cf7045fe5783c (MD5) Previous issue date: 2016-12-19 / Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico (CNPq) / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (CAPES) / As pol?ticas educacionais na contemporaneidade t?m incorporado princ?pios da nova gest?o p?blica (NGP), que se configura como modelo hegem?nico no cen?rio da globaliza??o neoliberal. A NGP surgiu como resposta ? crise do modelo burocr?tico na administra??o p?blica, e seus princ?pios se assentam na maximiza??o do controle, competitividade, avalia??o, presta??o de contas, responsabiliza??o, descentraliza??o de tarefas, participa??o controlada, responsabilidade individual e coletiva, os quais s?o ressignificados de acordo com os contextos de implanta??o e ajustados segundo as particularidades locais. No Brasil, constata-se que essa matriz gerencial incorpora-se ?s pol?ticas p?blicas, desde a d?cada de 1990, consolidando-se ao longo dos anos 2000 na gest?o dos sistemas educacionais. Nesse per?odo, verifica-se a intensifica??o das pol?ticas de avalia??o, presta??o de contas e responsabiliza??o no setor p?blico, em todas as ?reas e, particularmente, na educa??o. Dessas pol?ticas, a responsabiliza??o tem sido utilizada como estrat?gia para rotular os sistemas de forma positiva ou negativa, considerando os desempenhos obtidos nos processos de avalia??o e presta??o de contas. Na educa??o brasileira, trata-se de um tema relacionado com a responsabilidade educacional, o qual vem assumindo centralidade nos ?ltimos anos no pa?s, de modo que tem sido mat?ria de preocupa??o do Poder Executivo e Legislativo, configurado no debate e na produ??o de instrumentos legais que tramitam atualmente na C?mara dos Deputados. Embora o pa?s n?o possua, ainda, uma Lei de Responsabilidade Educacional, observa-se que nos n?veis subnacionais e locais emergiram algumas experi?ncias com essas caracter?sticas, dentre elas a do munic?pio de Mossor?, no estado do Rio Grande do Norte. Esse ente federado aprovou, no ano de 2010, por meio da Lei municipal n. 2.717/2010, a Pol?tica de Responsabilidade Educacional (PRE). A presente pesquisa elege como objeto de investiga??o essa pol?tica, cujo foco de an?lise volta-se para compreender como se efetivou o seu processo de concep??o e execu??o no per?odo de 2010 a 2015. Para o encaminhamento da an?lise do objeto de estudo, optou-se pelo materialismo hist?rico-dial?tico, por considerar que esse m?todo permite entend?-lo nas suas rela??es e media??es, assegurando, portanto, uma compreens?o contextualizada de sua configura??o. Como procedimentos de pesquisa, foram utilizadas a revis?o bibliogr?fica, a an?lise documental e a realiza??o de entrevistas semiestruturadas com cinco participantes do processo de concep??o e implementa??o da PRE. Para organiza??o e interpreta??o dos dados, recorreu-se a alguns elementos da an?lise de conte?do (BARDIN, 1977). Constata-se que a PRE de Mossor? surgiu, nesse contexto, como uma resposta ?s dificuldades diagnosticadas pela assessoria da educa??o municipal e registradas no Planejamento Estrat?gico da Rede Municipal de Ensino (PERME), que indicavam a necessidade de ajustes na administra??o e gest?o da Rede. A PRE institui processos de responsabiliza??o focalizados no controle de resultados sob formas de premia??es materiais, com pagamento financeiro do d?cimo quarto sal?rio aos funcion?rios da escola e poupan?a para o aluno que mais se destaca nos processos de avalia??o e participa??o nas atividades escolares. No plano simb?lico, empresas que desenvolvem programas de responsabilidade social na Rede e um dos pais com atua??o no Conselho Escolar recebem medalhas e diplomas. A pol?tica municipal materializada na LRE refor?a a vigil?ncia e a sensa??o de medo quanto ? possibilidade da demiss?o ou rotatividade de professores, diretores e supervisores que n?o contribuem para a melhoria dos indicadores, embora durante o per?odo de implementa??o (2010-2015) isso n?o tenha acontecido. Concluise que a PRE se configura como uma nova engrenagem de responsabiliza??o na administra??o da educa??o baseada no controle de resultados. / The educational policies in the contemporary world have incorporated principles of the new public management (NGP), which is configured as a hegemonic model in the scenario of neoliberal globalization. It should be noted that NGP emerged as a response to the crisis of the bureaucratic model in the Public Administration, and its principles are based on the control maximization, competitiveness, evaluation, accountability, liability, decentralization of tasks, controlled participation, individual and collective responsibility. These principles are redefined according to the contexts of implementation and are adjusted according to the local particularities. In Brazil, it is noticed that this managerial matrix is incorporated into public policies since the 1990s, being consolidated throughout the years 2000, in the management of educational systems. In this period, it is possible to verify the intensification on the evaluation policies, accountability and liability in the public sector, in all areas and, particularly, in education. From these policies, accountability has been used as a strategy to label systems positively or negatively, taking into account the performance of the evaluation and accountability processes. In Brazilian education, this is a topic related to the educational responsibility, which has been central in recent years in the country, so it has been a matter of concern to the executive and legislative power, configured in the debate and in the production of legal instruments which are currently under process in the Chamber of Deputies. Although the country does not yet have an Educational Responsibility Law, it can be observed that at the subnational and local levels some experiences with these characteristics emerged, such as the municipality of Mossor?, in the State of Rio Grande do Norte. This federated entity approved, in the year 2010, through the municipal Law n. 2,717/2010, the Educational Responsibility Policy (PRE). The present research selects this policy as the object of research, which focus of analysis is to understand how its conception and execution process took place in the period from 2010 to 2015. In order to refer the analysis of the object of study, it was decided by the historical-dialectical materialism, considering that this method allows us to understand it in its relations and mediations, thus ensuring a contextualized understanding of its configuration. As research procedures, it was chosen the bibliographic review, documentary analysis and semi-structured interviews with five participants from the process of conception and implementation of PRE. For the organization and interpretation of the data, some elements of content analysis were used (BARDIN, 1977). In this context, it is verified that the PRE of Mossor? emerged as a response to the difficulties diagnosed by the municipal education counseling and recorded in the Strategic Planning of the Municipal Education Network (PERME), which indicated the need for adjustments in the administration and management of the Network. The PRE establishes accountability processes focused on the control of results under forms of material rewards, with financial payment of the fourteenth salary to the school employees and saving account for the student who stands out most in the processes of evaluation and participation in school activities. On the symbolic level, companies which develop social responsibility programs in the Network and one of the parents who work in the School Council receive medals and diplomas. The municipal policy embodied in the LRE reinforces vigilance and a sensation of fear about the possibility of dismissal or turnover of teachers, principals and supervisors who do not contribute to the improvement of the indicators, although during the implementation period (2010-2015) this has not happened. It is concluded that the PRE is configured as a new mechanism of responsibility in the administration of municipal public education in Mossor?-RN, based on the results control.

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2017-04-26T22:24:06Z No. of bitstreams: 1 LianaDeAraujoESilvaPereira_DISSERT.pdf: 929260 bytes, checksum: ef5032246f43bf51811ab22bb315f218 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2017-04-26T22:30:16Z (GMT) No. of bitstreams: 1 LianaDeAraujoESilvaPereira_DISSERT.pdf: 929260 bytes, checksum: ef5032246f43bf51811ab22bb315f218 (MD5) / Made available in DSpace on 2017-04-26T22:30:16Z (GMT). No. of bitstreams: 1 LianaDeAraujoESilvaPereira_DISSERT.pdf: 929260 bytes, checksum: ef5032246f43bf51811ab22bb315f218 (MD5) Previous issue date: 2014-08-28 / Esta disserta??o apresenta como tema O gestor da Institui??o P?blica de ensino e a Nova Gest?o P?blica, pois trata de uma reflex?o com o objetivo geral de compreender como as a??es do gestor, responde a proposta da Nova Gest?o P?blica e as exig?ncias do Plano Nacional de Educa??o, de modo a contribuir com a educa??o nas institui??es p?blicas do Rio Grande do Norte e tem com objetivos espec?ficos: analisar a forma??o dos gestores para a fun??o de diretor; pesquisar se as forma??es dos gestores correspondem com a teoria da Nova Gest?o P?blica e estudar se a forma??o do gestor reflete na qualidade da educa??o. Neste sentido, fez-se a pesquisa com gestores p?blicos das institui??es estaduais de ensino da 1? DIRED, de m?dio e grande porte (acima de seiscentos alunos), procurando analisar a forma??o dos gestores e seus conhecimentos espec?ficos que envolvam as pr?ticas da gest?o p?blica voltadas para resultados e se isto reflete na qualidade da educa??o, conforme autores como, Sveiby (1998), Moresi (2001), Brasil (1995), ARA?JO (2010), Brand?o e Guimar?es (1999), Pacheco (2011), Dahl (1990), entre outros. A metodologia da pesquisa possui car?ter descritivo, com abordagem qualitativa, para compreender como as a??es do gestor, e a gest?o da institui??o p?blica de ensino voltada para resultados s?o capazes de responder, as demandas sociais. A investiga??o tem car?ter explorat?rio, uma vez que h? pouco conhecimento sistematizado sobre a gest?o p?blica na educa??o. Os estudos levam a proposi??es de resultados sobre a melhoria da educa??o. Foram utilizadas como fontes de coleta de dados: pesquisa bibliogr?fica, pesquisa documental e entrevistas. A autonomia do gestor, as particularidades e o envolvimento das pessoas no processo de gest?o, assim como o planejamento coletivo, articula??es conforme as demandas, gest?o de pessoal e dos espa?os f?sico, assim como avalia??es, s?o t?picos estudados nesta pesquisa, de modo a propiciar uma an?lise mais precisa dos fatos. Partimos da percep??o dos diretores de escolas, para ent?o analisar a forma??o dos mesmos, como um fator importante nesta an?lise. Os resultados obtidos dizem respeito ? necessidade de mudan?as de comportamento dos gestores por meio de uma forma??o adequada para tal fun??o uma vez que suas a??es t?m influ?ncia nos resultados da educa??o. / This dissertation presents themed managers Public Educational Institution and the New Public Management, as it is a reflection with the aim of understanding how the actions of the manager responds to the proposal of New Public Management and the requirements of the National education, to contribute to education in public institutions of Rio Grande do Norte. This dissertation presents the theme manager The Public Educational Institution and the New Public Management , as it is a reflection on the overall goal of understanding how the actions of the manager responds to the proposal from New Public Management and the requirements of the National Education Plan in order to contribute to education in public institutions of Rio Grande do Norte and has specific objectives to : review the training of managers to the role of director ; investigate whether the training of managers correspond to the theory of New Public Management and study the formation of the manager reflects on the quality of education. In this sense, did the research with public managers in state educational institutions of DIRED 1st, medium and large (over six hundred students), assessing the training of managers and their expertise involving the practices of focused public management for results and this reflects in the quality of education, as authors such as, Sveiby (1998), Moresi (2001), Brazil (1995), Araujo (2010), Brand?o and Guimar?es (1999), Pacheco (2011), Dahl (1990 ), among others. The research methodology has descriptive, qualitative approach, to understand how the actions of the manager, and the management of public educational institution focused on results are able to respond to social demands. The research is exploratory, since there is little systematic knowledge about public management in education. The studies lead to propositions of results on the improvement of education. Were used as sources of data collection: literature review, desk research and interviews. The autonomy of the manager, the particularities and people's involvement in the management process, as well as the collective planning, joints according to the demands, personnel management and physical spaces, as well as appraisals, are topics studied in this research , in order to provide a more precise analysis of the facts . We start from the perception of school principals, and then analyze their training as an important factor in this analysis. The results relate to the need for changes in the behavior of managers through adequate training for such function since their actions have influenced the results of education.

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2017-06-02T22:53:27Z No. of bitstreams: 1 SavioArcanjoSantosNascimentoDeMoraes_DISSERT.pdf: 3382313 bytes, checksum: d29b0d639c0367f1cb819ebeb2afb377 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2017-06-09T22:09:38Z (GMT) No. of bitstreams: 1 SavioArcanjoSantosNascimentoDeMoraes_DISSERT.pdf: 3382313 bytes, checksum: d29b0d639c0367f1cb819ebeb2afb377 (MD5) / Made available in DSpace on 2017-06-09T22:09:38Z (GMT). No. of bitstreams: 1 SavioArcanjoSantosNascimentoDeMoraes_DISSERT.pdf: 3382313 bytes, checksum: d29b0d639c0367f1cb819ebeb2afb377 (MD5) Previous issue date: 2017-02-21 / Macrobrachium jelskii ? uma esp?cie de ampla distribui??o no nordeste brasileiro, e ocorrendo em toda Am?rica do Sul. Contudo, nenhum estudo acerca a filogeografia, varia??es morfol?gicas locais e variabilidade gen?tica das popula??es desta esp?cie foi efetuado. Esta esp?cie de camar?o, pode revelar informa??es importantes sobre o padr?o de dispers?o e vicariantes correlatos ? cen?rios de arranjos tect?nicos pret?ritos e outros eventos que possam ter influenciado a biogeografia dos taxa aqu?tico. Portanto, o presente trabalho tem como objetivo investigar a diversidade fenot?pica e molecular das popula??es do camar?o Macrobrachium jelskii, nas ecorregi?es Nordeste M?dio Oriental, Maranh?o Piau? e S?o Francisco, frente a influ?ncia de cen?rios pret?ritos e respostas ambientais locais. Este trabalho utilizou uma abordagem de Sistem?tica integrativa, a morfometria geom?trica multivariada, an?lises filogen?ticas e de estrutura??o gen?tica. A morfometria geom?trica, revelou dimorfismo sexual evidente, em que f?meas apresentaram cefalot?rax e abd?men mais estirados horizontalmente. Isto, possivelmente, favorece o desenvolvimento gonadal, vitelog?nese e armazenamento dos ovos. Abstra??o da forma dos tr?s planos corporais n?o demostrou um consenso acerca da estrutura??o das popula??es entre de M. jelskii no Nordeste Brasileiro. Tal fato corrobora com a baixa diversidade nucleot?dica e haplot?pica, em que foi relatado apenas um hapl?tipo compartilhado entre as popula??es das bacias. Assim, ratificando a possibilidade de introdu??o da esp?cie nos corpos d??gua do Nordeste pelo DNOCS. Em adi??o, os dados gen?ticos relataram a presen?a de ru?dos e picos duplos no eletroferograma, que representa co-amplifica??o de pseudogenes mitocondriais da regi?o Citocromo Oxidase I, pouco relatadas na literatura para o g?nero Macrobrachium. Este fato abre um precedente de desconfian?a para rela??es filogen?ticas e filogeogr?ficas publicadas, recentemente que n?o retratam isto. Sabendo que esta caracter?stica pode gerar uma superestima??o de linhagens evolutivas e, assim, conclus?es err?neas sobre eventos dispersivos, vicariantes ou de especia??o, se faz de suma import?ncia retratar os casos de pseudogenes e a utiliza??o de iniciadores espec?ficos para cada t?xon. / Macrobrachium jelskii is a widely distributed species in northeastern Brazil, occurring throughout South America. However, no studies on phylogeography, local morphological variations and genetic variability of the populations of this species were carried out. This prawn species can reveal important information on the dispersion pattern and related vicariates for scenarios of past tectonic arrangements and other events that have influenced the biogeography of the aquatic taxa. The aim of this manuscript is to investigate a phenotypic and molecular diversity of the prawn M. jelskii populations in the Mid-Northeast Caatinga, Maranho Piau? and S?o Francisco ecoregions, influenced by past scenarios and environmental local responses. This scientific article uses an approach of Integrative Systematics, a multivariate geometric morphometry, phylogenetic analyzes and genetic structuring. Geometric morphometry showed evident sexual dimorphism, in which females presented cephalothorax and abdomen more horizontally stretched. This possibly favors gonadal development, vitellogenesis and egg storage. Abstraction of the shape of the three body planes does not demonstrate a consensus on the structuring of the populations between M. jelskii in the Northeast of Brazil. This fact corroborates a low nucleotide and haplotype diversity, in which only one haplotype was shared among the populations of the basins. Thus, ratifying a possibility of introduction in the Northeast area by DNOCS. In addition, the genetic data reported a presence of noises and double peaks not electropherogram, which represents co-amplification of mitochondrial pseudogenes of the region Cytochrome Oxidase I, little reported in the literature for the genus Macrobrachium. This fact show a precedent of mistrust for published phylogenetic and phylogeographic relationships, which recently did not depict this. Knowing that this characteristic can generate an overestimation of evolutionary lineages and, thus, erroneous conclusions on dispersive, vicarious or speciation events, it is of importance to report the cases of pseudogenes and the use of specific molecular primers for each taxon.

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2017-06-02T23:16:19Z No. of bitstreams: 1 CleidianeBragaLima_DISSERT.pdf: 6732550 bytes, checksum: 4c205714d1a48aeba5a8b8ace6547017 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2017-06-12T21:00:50Z (GMT) No. of bitstreams: 1 CleidianeBragaLima_DISSERT.pdf: 6732550 bytes, checksum: 4c205714d1a48aeba5a8b8ace6547017 (MD5) / Made available in DSpace on 2017-06-12T21:00:50Z (GMT). No. of bitstreams: 1 CleidianeBragaLima_DISSERT.pdf: 6732550 bytes, checksum: 4c205714d1a48aeba5a8b8ace6547017 (MD5) Previous issue date: 2016-12-16 / Quando pensamos na experi?ncia da leitura, a obra liter?ria seria o artefato que ? oferecido ? consci?ncia de um leitor, o texto liter?rio n?o deve ser uma realidade independente dessa consci?ncia, que sente e percebe os significados de uma forma particular, cont?nua, livre de amarras impostas por delimita??es alheias. A obra liter?ria precisa de seu leitor para percorrer diferentes ?pocas e contextos e existir, de fato. Fazer o autor perder a unidade detentora de sentidos e possibilitar ao texto a liberdade necess?ria para desprender-se dos preceitos estruturalistas e formalistas que - por atribu?rem exclusivamente ? pr?pria textualidade a responsabilidade interpretativa de uma obra, n?o privilegiaram o leitor nessa rela??o - ? o pressuposto levantado pela est?tica da recep??o, corrente contempor?nea da teoria da literatura, escolhida para nortear esta proposta de interven??o. A proposta desta disserta??o ? centrada em utilizar a est?tica da recep??o, aplicada atrav?s de uma sequ?ncia did?tica idealizada por Cosson (2009) junto a uma turma do 9? ano do ensino fundamental em uma escola do munic?pio de Fortaleza, Cear?. Objetivamos valorizar o papel ativo do aluno/ leitor na an?lise e interpreta??o de uma obra fundamental da literatura brasileira que ? O corti?o, de Alu?sio Azevedo. Trata-se de uma pesquisa-a??o, com a abordagem de dados qualitativos propostos por Bogdan e Biklen (1991). A fundamenta??o te?rica recorre ? aplica??o de conceitos de grandes predecessores e estudiosos da teoria receptiva como Barthes (1968), Jauss (1994), Iser (1999), assim como te?ricos que nos auxiliam nas novas formas de compreender o texto liter?rio, como Zilberman (1989), C?ndido (2000), Cosson (2009), Oliveira (2009), Zappone (2009), dentre outros. Ao final de nossa interven??o, observamos que os alunos adquiriram apre?o pela obra lida, tra?aram suas pr?prias impress?es acerca dela e buscaram novas fontes para exercerem uma leitura consciente, al?m de enxergarem sua pr?pria import?ncia na constru??o de significados, livres de julgamentos, n?o apenas em O corti?o, mas tamb?m em leituras vindouras. / When we think of the experience of reading, the literary work would be the artifact that is offered to the consciousness of a reader, the literary text shouldn't be a reality independent of that consciousness, which feels and perceives the meanings in a particular, continuous, imposed by other people's delimitations. The literary work needs its reader to traverse different epochs and contexts and exist, in fact. To make the author lose the sensory unity and allow the text the freedom necessary to detach itself from the structuralist and formalist precepts which - because they attributed exclusively to their own textuality the interpretative responsibility of a work, didn't privilege the reader in this relation - is the presupposition Raised by the aesthetics of the reception, contemporary current of the theory of literature, chosen to guide this proposal of intervention. The proposal of this dissertation is centered in using the reception aesthetics, applied through a didactic sequence idealized by Cosson (2009) next to a class of the 9th year of elementary education in a school in the city of Fortaleza, Cear?. We aim to value the active role of the student / reader in the analysis and interpretation of a fundamental work of Brazilian literature that is O Corti?o, by Alu?sio Azevedo. It is an action research, with the approach of qualitative data proposed by Bogdan and Biklen (1991). The theoretical basis is based on the application of concepts of great predecessors and students of receptive theory such as Barthes (1968), Jauss (1994), Iser (1999), as well as theorists who help us in the new ways of understanding the text Literary, such as Zilberman (1989), Candido (2000), Cosson (2009), Oliveira (2009), Zappone (2009), among others. At the end of our intervention, we observed that the students acquired appreciation for the work they read, drew their own impressions on it, and sought new sources to exercise a conscious reading, as well as seeing their own importance in constructing meanings, free from judgments, not just in O corti?o, but also in readings to come.

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2017-07-04T14:24:09Z No. of bitstreams: 1 AdinoSaraivaBandeira_DISSERT.pdf: 14411560 bytes, checksum: 99a302c28979a33bf381df622683c789 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2017-07-14T12:09:07Z (GMT) No. of bitstreams: 1 AdinoSaraivaBandeira_DISSERT.pdf: 14411560 bytes, checksum: 99a302c28979a33bf381df622683c789 (MD5) / Made available in DSpace on 2017-07-14T12:09:08Z (GMT). No. of bitstreams: 1 AdinoSaraivaBandeira_DISSERT.pdf: 14411560 bytes, checksum: 99a302c28979a33bf381df622683c789 (MD5) Previous issue date: 2017-05-03 / O objetivo geral deste trabalho foi analisar o programa Reitoria Itinerante do IFPB (REITI), enquanto um processo de gest?o participativa no Instituto Federal da Para?ba, com o proposito de verificar at? que ponto a REITI proporcionaria o compartilhamento de poder e o controle de decis?es por parte da comunidade acad?mica do IFPB, com vistas ao alcance de uma gest?o participativa e democr?tica na institui??o. Trata-se de uma pesquisa explorat?ria que utilizou uma abordagem descritiva-quantitativa. O estudo, dentre v?rios aspectos, busca caracterizar o programa sob o enfoque te?rico da gest?o participativa, recorrendo, para tanto, ?s t?cnicas de pesquisa documental e de entrevistas realizadas n?o apenas com os gestores respons?veis diretamente pelo planejamento do programa, como principalmente na aplica??o de question?rios envolvendo a comunidade acad?mica. Foram criados indicadores, a exemplo de "Dialogismo", "Protagonismo", "Formula??o da pol?tica da institui??o", entre outros, com base em aspectos-chave destacados do referencial te?rico estudado e de declara??es dos gestores da REITI, que acabaram subsidiando na elabora??o das vari?veis estudadas. Os resultados foram analisados em tr?s categorias, "Participantes", "Alunos" e "Servidores", com base na compara??o dos valores percentuais das respostas obtidas e as conclus?es foram desenvolvidas de maneira descritiva e anal?tica, fundamentadas pelo referencial te?rico. A pesquisa descobriu que a REITI, apesar de estabelecer um processo participativo, n?o proporciona o compartilhamento do poder de decis?o com os servidores e alunos, caracter?stica que, caso estivesse presente, a evidenciaria como modelo de gest?o genuinamente participativa e democr?tica. Apesar disso, o estudo concluiu que alunos e servidores percebem a import?ncia do programa quanto ao estabelecimento de uma rela??o dial?gica que produz resultados ben?ficos na realidade da comunidade acad?mica do instituto. / The general objective of this work was to analyze the program "Itinerant Rectory of the IFPB" (REITI), as a participative management process in the Federal Institute of Para?ba, with the purpose of verifying to what extent REITI would provide power sharing and control of decisions to a part of the IFPB academic community, with a view to achieving participatory and democratic management in the institution. It is an exploratory research that used a descriptive-quantitative approach. The study, among several aspects, seeks to characterize the program, under the theoretical approach of participatory management, resorting to the techniques of documental research and interviews conducted not only with managers directly responsible for program planning, but mainly by the application of questionnaires involving the academic community. Indicators were created, such as "Dialogism", "Protagonism", "Formulation of institution policy", among others, based on key aspects highlighted from the theoretical framework studied and from declarations of REITI managers, what ended up subsidizing the elaboration of the variables studied. The results were analyzed in three categories, "Participants", "Students" and "Servants", based on the comparison of the percentage values of the answers obtained and the conclusions were developed in a descriptive and analytical way, based on the theoretical references. The research found that REITI, in spite of establishing a participatory process, does not provide the sharing of decision-making power with the servants and students, a characteristic that, if present, would show it as a genuinely participatory and democratic management model. Despite this, the study concluded that students and servants perceive the importance of the program in establishing a dialogical relationship that produces beneficial results in the reality of the academic community of the institute.

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2017-07-17T13:30:07Z No. of bitstreams: 1 PamelaLavorRolim_TESE.pdf: 8039879 bytes, checksum: d136052a1b02140db1675ddb8b0824f8 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2017-07-20T11:27:33Z (GMT) No. of bitstreams: 1 PamelaLavorRolim_TESE.pdf: 8039879 bytes, checksum: d136052a1b02140db1675ddb8b0824f8 (MD5) / Made available in DSpace on 2017-07-20T11:27:33Z (GMT). No. of bitstreams: 1 PamelaLavorRolim_TESE.pdf: 8039879 bytes, checksum: d136052a1b02140db1675ddb8b0824f8 (MD5) Previous issue date: 2017-03-31 / O g?nero Pilosocereus pertence ? Cactaceae (subfam?lia Cactoideae) e ? um dos maiores e mais bem distribu?dos g?neros dentro da tribo Cereeae. Com 42 esp?cies, divididas nos subg?neros Pilosocereus e Gounellea, o g?nero ? distribu?do de forma disjunta na regi?o neotropical, ocorrendo nos mais diferentes tipos de h?bitats, sempre associados a ambientes x?ricos, sendo o leste do Brasil o seu maior centro de diversidade. Em raz?o de suas caracter?sticas morfol?gicas, as quais lhe conferem grande adaptabilidade a ambientes x?ricos (assim como as demais Cact?ceas), as esp?cies de Pilosocereus s?o frequentemente dominantes e assumem um importante papel ecol?gico e etnobot?nico onde ocorrem. No entanto, poucos tem sido os trabalhos at? o momento que tiveram como foco o g?nero como um todo. Assim, esta tese teve como objetivo investigar o relacionamento filogen?tico, a biogeografia e aspectos evolutivos do g?nero Pilosocereus. No cap?tulo 1 investigou-se os processos de diversifica??o de Pilosocereus nos h?bitats ?ridos da regi?o Neotropical, a partir do relacionamento filogen?tico, do tempo de diverg?ncia de clados e da reconstru??o de ?reas ancestrais. Concluiu-se que o g?nero n?o ? monofil?tico, e o principal clado (Pilosocereus sensu stricto) diversificou-se muito recentemente (principalmente no Pleistoceno tardio), com origem na Caatinga e eventos de migra??o para outros ambientes x?ricos da Am?rica do Norte/Central, Noroeste da Am?rica do Sul e Caribe. No cap?tulo 2, reconstruiu-se o relacionamento filogen?tico do g?nero atrav?s de an?lise bayesiana e m?xima parcim?nia, com uma amplia??o da amostragem de t?xons e regi?es gen?micas em rela??o a trabalhos previamente publicados. Comprovou-se a n?o monofilia do grupo, bem como de quatro esp?cies heterot?picas, o que permitiu propor mudan?as taxon?micas, incluindo a eleva??o de categoria de tr?s esp?cies; tr?s novos sin?nimos; um novo nome no ranking de esp?cie e um novo g?nero, Xiquexique (composto pelas esp?cies formalmente posicionadas em P. subg. Gounellea), passando ent?o Pilosocereus a uma nova circunscri??o, com 42 esp?cies e quatro subesp?cies. Por fim, no cap?tulo 3 apresenta-se o padr?o de distribui??o, riqueza, endemismo e atual situa??o de conserva??o de todas as esp?cies do grupo, onde foi encontrado que alguns t?xons apresentam restri??es ao tipo de vegeta??o, mas a maioria se mostra amplamente distribu?da em diferentes gradientes ambientais. A maior riqueza de esp?cies e diversidade filogen?tica s?o encontradas nos estados da Bahia e Minas Gerais, com ?reas de endemismo sendo apontadas para o leste do Brasil e M?xico. Assim, esta tese teve uma abordagem multidisciplinar a fim de elucidar diferentes aspectos da biologia deste grande e diverso grupo, que at? o momento permaneciam desconhecidos. / The genus Pilosocereus belongs to Cactaceae (subfamily Cactoideae) and is one of the largest and most widely distributed genera within the tribe Cereeae. With 42 species divided in two subgenera, Pilosocereus and Gounellea the group is disjunctly distributed in the Neotropics and centered in eastern Brazil, occurring in many different types of habitats associated with xeric environments. Due to its morphological features, providing great adaptability to xeric environments (as all Cacti), Pilosocereus species are often dominant and play an important ecological and ethnobotanical role where they occur. However, there were few studies so far that focused on the genera as a whole. Thus, this thesis aimed to investigate the phylogenetic relationship, biogeography and evolutionary aspects of the genus Pilosocereus. The first Chapter focused in investigating Pilosocereus diversification processes in arid habitats in the Neotropics, using phylogenetic relationships, clades divergence times and reconstruction of ancestral areas. The conclusion was that the genus is not monophyletic and that the main clade (Pilosocereus sensu stricto) diversified very recently (mainly in Late Pleistocene), with origin in the Caatinga and posterior migration events to other xeric environments in North/Central America, Northwest of South America and Caribbe. In Chapter 2, the phylogenetic relationships in the genus were reconstructed through Bayesian and Maximum Parsimony analyses, with expanded taxon sampling and genomic regions in comparison with previously published works. Again, the genus was found as non-monophyletic, as well as four heterotypic species, what led to the proposition of taxonomic changes, including the resurrection of three species, three new synonyms, a new name in the species rank and a new name in the generic rank, Xiquexique (composed of the species formally positioned in P. subg. Gounellea), while Pilosocereus was newly circumscrybed with 42 species and four subspecies. Finally, Chapter 3 presents the distribution patterns, richness, endemism and current conservation scenario for all species of the group. Some taxa are restricted to vegetation types, but most of them are widely distributed in different environmental gradients. The greatest species richness and phylogenetic diversity are found in the states of Bahia and Minas Gerais, with areas of endemism in Eastern Brazil and Mexico. Thus, this thesis had a multidisciplinary approach in order to elucidate different aspects of the biology of this large and diverse group, which remained unknown until now.