Made available in DSpace on 2014-12-17T15:41:55Z (GMT). No. of bitstreams: 1 DanielleOM_DISSERT.pdf: 1963445 bytes, checksum: 143b241474d5026def897c0c4c0d797f (MD5) Previous issue date: 2011-07-12 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior / In this work were synthesized and studied the spectroscopic and electrochemical characteristics of the coordination compounds trans-[Co (cyclam)Cl2]Cl, trans- Na[Co(cyclam)(tios)2], trans-[Co(en)2Cl2]Cl and trans-Na[Co(en)2(tios)2], where tios = thiosulfate and en = ethylenediamine. The compounds were characterized by: Elemental Analysis (CHN), Absorption Spectroscopy in the Infrared (IR), Uv-Visible Absorption Spectroscopy, Luminescence Spectroscopy and Electrochemistry (cyclic voltammetry). Elemental Analysis (CHN) suggests the following structures for the complex: trans- [Co(cyclam)Cl2]Cl.6H2O and trans-Na[Co(cyclam)(tios)2].7H2O. The electrochemical analysis, when compared the cathodic potential (Ec) processes of the complexes trans- [Co(cyclam)Cl2]Cl and trans-[Co(en)2Cl2]Cl, indicated a more negative value (-655 mV) for the second complex, suggesting a greater electron donation to the metal center in this complex which can be attributed to a greater proximity of the nitrogen atoms of ethylenediamine in relation to metal-nitrogen cyclam. Due to the effect of setting macrocyclic ring to the metal center, the metal-nitrogen bound in the cyclam are not as close as the ethylenediamine, this fact became these two ligands different. Similar behavior is also observed for complexes in which the chlorides are replaced by thiosulfate ligand, trans-Na[Co(en)2(tios)2] (-640 mV) and trans-Na[Co(cyclam)(tios)2] (-376 mV). In absorption spectroscopy in the UV-visible, there is the band of charge transfer LMCT (ligand p d* the metal) in the trans-Na[Co(cyclam)(tios)2] (350 nm, p tios  d* Co3+) and in the trans-Na[Co(en)2(tios)2] (333 nm, p tios d* Co3+), that present higher wavelength compared to complex precursor trans- [Co(cyclam)Cl2]Cl (318 nm, pCl  d* Co3+), indicating a facility of electron density transfer for the metal in the complex with the thiosulfate ligand. The infrared analysis showed the coordination of the thiosulfate ligand to the metal by bands in the region (620-635 cm-1), features that prove the monodentate coordination via the sulfur atom. The νN-H bands of the complexes with ethylenediamine are (3283 and 3267 cm-1) and the complex with cyclam bands are (3213 and 3133 cm-1). The luminescence spectrum of the trans-Na[Co(cyclam)(tios)2] present charge transfer band at 397 nm and bands dd at 438, 450, 467, 481 and 492 nm. / Este trabalho teve por objetivo sintetizar e estudar as caracter?sticas espectrosc?picas e eletroqu?micas dos compostos de coordena??o trans- Na[Co(cyclam)(tios)2], trans-[Co(cyclam)Cl2]Cl, trans-[Co(en)2Cl2]Cl e trans- Na[Co(en)2(tios)2], em que tios = tiossulfato e en = etilenodiamina. Os compostos obtidos foram caracterizados por: An?lise elementar (CHN), Espectroscopia de Absor??o na Regi?o do Infravermelho (IV), Espectroscopia de Absor??o na Regi?o do UV-Vis?vel, Espectroscopia de Luminesc?ncia e Eletroqu?mica (voltametria c?clica). A an?lise elementar (CHN) sugere as seguintes estruturas para os complexos: trans- [Co(cyclam)Cl2]Cl.6H2O e trans-Na[Co(cyclam)(tios)2].7H2O. Na an?lise eletroqu?mica, ao se fazer uma compara??o dos potenciais cat?dicos (Ec) referentes aos processos de redu??o dos complexos trans-[Co(cyclam)Cl2]Cl e trans-[Co(en)2Cl2]Cl, observa-se valores mais negativos (-655 mV) no segundo complexo, sugerindo uma maior doa??o eletr?nica ao centro met?lico neste complexo o que pode ser atribu?do a uma maior proximidade dos ?tomos de nitrog?nio da etilenodiamina em rela??o a liga??o metal nitrog?nio do cyclam, devido ao efeito do ajuste do anel macroc?clico ao centro met?lico (efeito macroc?clico), o que faz com que a liga??o metal-nitrog?nio n?o seja t?o pr?xima quanto da etilenodiamina, fato que difere os ligantes em estudo. Comportamento similar ? tamb?m observado para os complexos, em que os cloretos s?o substitu?dos pelo ligante tiossulfato, trans-Na[Co(en)2(tios)2] (-640 mV) e trans- Na[Co(cyclam)(tios)2] (- 376 mV). Na espectroscopia de absor??o na regi?o do UVvis?vel observa-se a banda de transfer?ncia de carga LMCT (pdo ligante d* do metal), como sendo a de maior comprimento de onda para o trans- Na[Co(cyclam)(tios)2] (350 nm, ptios d* Co3+) e trans-Na[Co(en)2(tios)2] (333 nm, ptios d* Co3+) comparativamente ao complexo precursor, trans- [Co(cyclam)Cl2]Cl (318 nm, pCl- d* Co3+) indicando uma maior facilidade de transfer?ncia de densidade eletr?nica para o metal nos complexos com o ligante tiossulfato. Na an?lise de infravermelho observou-se a coordena??o do ligante tiossulfato ao metal nos complexos atrav?s de bandas na regi?o de 620-635 cm-1, caracter?sticas que comprovam a forma monodentada de coordena??o via ?tomo de enxofre e a perman?ncia das bandas νN-H para complexos com etilenodiamina, bandas em 3283 e 3267 cm-1, e complexos com o cyclam, bandas em 3213 e 3133 cm-1. Na an?lise de luminesc?ncia foi observada uma banda de transfer?ncia de carga em 397 nm e bandas d-d no espectro de emiss?o do complexo trans-Na[Co(cyclam)(tios)2] em 438, 450, 467, 481 e 492 nm.

Made available in DSpace on 2016-04-28T20:13:53Z (GMT). No. of bitstreams: 1 2008 - Solange da Costa Nogueira.pdf: 2395754 bytes, checksum: 682130648907407343c590b7846d826f (MD5) Previous issue date: 2008-09-17 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior / The recent undertaking proliferation of tilapia breeding in cages in the Northwestern region of Sao Paulo state have stimulated the rising of local productive activity segments which constitute a regional agro-industrial system. This system consolidation and growth depend on competitive improvement of each segment, not only by decreasing production costs, but also by decreasing the costs of transaction. This study has analyzed the transactions amongst fingerling producers, tilapia in cage producers and fish processing industries from the region, identifying transactions coordination forms utilized by economy agents and, from three distinct theoretical views, pointing out the most adequate ones. The Transaction Cost Economics, the New Economic Sociology and the Translation Sociology theoretical approaches were used. Data were collected through interviews from November 2007 to February 2008. The three approaches used have permitted to conclude that the most adequate forms of transaction with fingerling producers are the acquisition agreements previously arranged, once they decrease uncertainties related to delivery regularity, price and product quality, as well as they facilitate both companies planning. Yet, concerning the transactions carried out with the fish processing industries, the most adequate coordination forms were the exclusive delivery agreements, due to the decrease on fish quality problems and on risks of not having the production drained, thus saving searching and dealing time, in addition to favoring the productive process standardization. As most relevant factors concerning changes stabilization in the three studied segments, the personal relationship, the registration instruments and the repassing of information, adopted by agents who commercialize through agreements, were emphasized. / A recente prolifera??o de empreendimentos de cultivo de til?pias em tanque-rede na regi?o noroeste do Estado de S?o Paulo tem estimulado o surgimento de segmentos produtivos afins que formam um sistema agroindustrial regional. A consolida??o e o crescimento destes segmentos dependem da melhoria de sua competitividade mediante n?o s? a diminui??o dos custos de produ??o, mas, tamb?m, dos custos de transa??o no sistema. Este estudo analisou as transa??es entre os produtores de alevinos, os produtores de til?pia em tanque-rede e as ind?strias processadoras da regi?o, identificando as formas de coordena??o das transa??es utilizadas pelos agentes econ?micos e indicando ?quelas mais adequadas, a partir de tr?s ?ticas te?ricas distintas. As abordagens te?ricas utilizadas foram a Economia dos Custos de Transa??o, a Nova Sociologia Econ?mica e a Sociologia da Tradu??o. A coleta de dados foi feita por entrevistas, durante os meses de novembro de 2007 a fevereiro de 2008. A utiliza??o das tr?s abordagens permitiu constatar que as formas mais adequadas de transa??o com os produtores de alevinos, s?o os acordos antecipados de aquisi??o, pois, diminuem as incertezas com rela??o ? regularidade da entrega, o pre?o e a qualidade do produto, bem como facilitam o planejamento de ambas as empresas. J? no caso das transa??es com as processadoras as formas mais adequadas de coordena??o demonstraram-se ser os acordos de entrega exclusiva, pois, diminuem os problemas de qualidade do peixe, os riscos de n?o escoar a produ??o, economizando em tempo de procura e negocia??o, al?m de favorecer a padroniza??o do processo produtivo e do produto. Como fatores mais relevantes para a estabiliza??o das trocas, entre os tr?s segmentos estudados, destacam-se o relacionamento pessoal, bem como os instrumentos de registro e rapasse de informa??es, adotados pelos agentes que comercializam mediante acordos.

Made available in DSpace on 2014-12-17T13:57:12Z (GMT). No. of bitstreams: 1 FabricioAMO_DISSERT.pdf: 3202586 bytes, checksum: 651b232064c19b6abeb4f1be749c8b5f (MD5) Previous issue date: 2013-03-25 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior / This paper examines, through case studies, the organization of the production process of architectural projects in architecture offices in the city of Natal, specifically in relation to building projects. The specifics of the design process in architecture, the production of the project in a professional field in Natal, are studied in light of theories of design and its production process. The survey, in its different phases, was conducted between March 2010 and September 2012 and aimed to identify, understand, and analyze comparatively, by mapping the design process, the organization of production of building projects in two offices in Natal, checking as well the relationships of their agents during the process. The project was based on desk research and exploration, adopting, for both, data collection tools such as forms, questionnaires, and interviews. With the specific aim of mapping the design process, we adopted a technique that allows obtaining the information directly from employee agents involved in the production process. The technique consisted of registering information by completing daily, during or at the end of the workday, an individual virtual agenda, in which all agent collaborators described the tasks performed. The data collected allowed for the identification of the organizational structure of the office, its hierarchy, the responsibilities of agents, as well as the tasks performed by them during the two months of monitoring at each office. The research findings were based on analyses of data collected in the two offices and on comparative studies between the results of these analyses. The end result was a diagnostic evaluation that considered the level of organization and elaborated this perspective, as well as proposed solutions aimed at improving both the organization of the process and the relationships between the agents under the lens analyzed / O presente trabalho analisa, atrav?s de estudos de caso, a organiza??o do processo de produ??o dos projetos de arquitetura em escrit?rios de arquitetura na cidade de Natal, mais especificamente no que diz respeito aos projetos de edif?cios. As especificidades do processo de projeto em arquitetura, ou seja, da produ??o do projeto no meio profissional natalense, s?o estudadas ? luz das teorias do projeto de arquitetura e de seu processo produtivo. A pesquisa, em suas diferentes fases, foi realizada entre mar?o de 2010 e setembro de 2012 e teve como principal objetivo identificar, conhecer e analisar comparativamente, atrav?s do mapeamento do processo de projeto, a organiza??o da produ??o dos projetos de edifica??es de dois escrit?rios em Natal, verificando, assim, como seus agentes se relacionam durante o processo. O trabalho baseou-se em pesquisa documental e explorat?ria, adotando, para tanto, ferramentas de coleta de dados como formul?rios, question?rios e entrevistas. Com o objetivo espec?fico de mapear o processo de projeto, adotou-se uma t?cnica que permite a obten??o das informa??es diretamente dos agentes colaboradores envolvidos no processo produtivo. A t?cnica consistiu no registro de informa??es, atrav?s do preenchimento di?rio, durante ou ao final do expediente de trabalho, de uma agenda virtual individual, na qual todos os agentes colaboradores descreveram as tarefas realizadas. Os dados coletados permitiram a identifica??o da estrutura organizacional dos escrit?rios, de seus n?veis hier?rquicos, das responsabilidades dos agentes, bem como das tarefas realizadas por eles durante os dois meses de monitoramento em cada escrit?rio. As conclus?es da pesquisa foram baseadas nas an?lises dos dados coletados nos dois escrit?rios e em estudos comparativos entre os resultados destas an?lises. Como resultado final, obteve-se um diagn?stico avaliativo do n?vel de organiza??o destes e elaboradas, nesta perspectiva, propostas de solu??es que visam ? melhoria da organiza??o do processo e das rela??es entre os agentes sob as ?ticas analisadas

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2016-01-04T20:23:54Z No. of bitstreams: 1 WendyMarinaToscanoQueirozDeMedeiros_DISSERT.pdf: 5044518 bytes, checksum: be0ad7506b973125eacfef544d411fd4 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2016-01-05T21:20:21Z (GMT) No. of bitstreams: 1 WendyMarinaToscanoQueirozDeMedeiros_DISSERT.pdf: 5044518 bytes, checksum: be0ad7506b973125eacfef544d411fd4 (MD5) / Made available in DSpace on 2016-01-05T21:20:21Z (GMT). No. of bitstreams: 1 WendyMarinaToscanoQueirozDeMedeiros_DISSERT.pdf: 5044518 bytes, checksum: be0ad7506b973125eacfef544d411fd4 (MD5) Previous issue date: 2014-07-21 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES / Com o presente trabalho tem-se como objetivo contribuir para o desenvolvimento da qu?mica de coordena??o de macromol?culas como o resorcinareno, com a s?ntese e caracteriza??o de novos complexos de cobre com os ligantes cloretos, vanilina e resorcinareno, todos eles coordenados ? fenantrolina, uma mol?cula que ? biologicamente ativa e possui importantes propriedades em sistemas biol?gicos. O complexo [(Cu(phen))4(resvan)], sintetizado a partir da rea??o direta do resorcinareno com metais, gera v?rias possibilidades de coordena??o, o que dificulta sua caracteriza??o. Por isso, com o objetivo de limitar os s?tios de coordena??o do ligante, o complexo [(Cu(phen))4(resvan)]Cl4 foi formado a partir de uma nova metodologia de s?ntese. Os complexos cis-[Cu(phen)Cl2], cis-[Cu(phen)(van)]Cl, [(Cu(phen))4(resvan)] e [(Cu(phen))4(resvan)]Cl4 foram caracterizados pelas t?cnicas espectrosc?picas de IV, Uv-Vis e EPR. Atrav?s do infravermelho foi poss?vel comprovar a presen?a do ligante fenantrolina em todos os complexos sintetizados, bem como a presen?a do ligante vanilina no complexo cis-[Cu(phen)(van)]Cl e do ligante resvan no complexo [(Cu(phen))4(resvan)], al?m de indicar a forma??o do resorcinareno no complexo [(Cu(phen))4(resvan)]Cl4. Os espectros eletr?nicos dos compostos de coordena??o obtidos indicaram a presen?a do ligante fenantrolina, atrav?s de suas bandas intensas na regi?o do ultravioleta. Para o complexo cis-[Cu(phen)(van)]Cl esta t?cnica indicou ainda a presen?a do ligante vanilina, a partir das bandas intraligante da vanilina e de transfer?ncia de carga, LMCT. Al?m disso, os espectros apresentaram bandas d-d, confirmando a presen?a de metais nos compostos formados. A quantidade de ?tomos de cobre presentes no complexo [(Cu(phen))4(resvan)]Cl4 foi estimada, a partir da an?lise comparativa das absorb?ncias de solu??es de mesma concentra??o de [(Cu(phen))4(resvan)]Cl4 e cis-[Cu(phen)(van)]Cl, a qual indica que estes compostos possuem em suas estruturas ?tomos de cobre na propor??o 4:1. Os espectros de EPR dos compostos cis-[Cu(phen)Cl2], cis-[Cu(phen)(van)]Cl e [(Cu(phen))4(resvan)]Cl4 apresentaram perfis axiais, enquanto que o complexo [(Cu(phen))4(resvan)] apresentou perfis axial e r?mbico, indicando uma mudan?a no ambiente de simetria do Cu(II) para este complexo. Os ligantes vanilina e resvan foram submetidos a ensaios biol?gicos com resultados satisfat?rios, ambos apresentando atividade antioxidante e baixa toxicidade, al?m da vanilina apresentar certo car?ter antitoxopl?smico. / The main objective of the present work is to contribute to the development of the coordination chemistry of macromolecules such as resorcinarene with the synthesis and characterization of new copper complexes with chloride, vanillin and resorcinarene binders, all coordinated to phenanthroline, a biologically active molecule with important properties in biological systems. The complex [(Cu(phen))4(resvan)], was synthesized from the direct reaction of the metals with resorcinarene and generates several possibilities for coordination, which hinders its characterization. Therefore, in order to limit the coordination sites of the ligand, the complex [(Cu(phen))4(resvan)]Cl4 was formed from a new synthetic methodology. The complex cis-[Cu(phen)Cl2], cis-[Cu(phen)(van)]Cl, [(Cu(phen))4(resvan)] and [(Cu(phen))4(resvan)]Cl4 were characterized by spectroscopic techniques such as IR, UV-vis and EPR. By using infrared it has been possible to demonstrate the presence of the phenanthroline ligand in the synthesized complexes, and vanillin in the complex cis- [Cu(phen)(van)]Cl and resvan ligand in the complex [(Cu(phen))4(resvan)], besides this indicating the formation of resorcinarene in the complex [(Cu(phen))4(resvan)]Cl4. The electronic spectra of these coordination compounds indicated the presence of the phenanthroline ligand, by its intense bands in the ultraviolet region. For the complex cis- [Cu(phen)(van)]Cl it still indicated the presence of the ligand vanillin based on intraligand bands of vanillin and charge transfer, LMCT. Furthermore, the spectra showed d-d bands, confirming the formation of metal compounds. The amount of copper atoms present in the complex [(Cu(phen))4(resvan)]Cl4 was estimated from a comparative analysis of the absorbances of solutions of the same concentration of [(Cu(phen))4(resvan)]Cl4 and cis- [Cu(phen)(van)]Cl, which indicates that these compounds have copper atoms in the ratio 4:1. The EPR spectra of the complex cis-[Cu(phen)Cl2], cis-[Cu(phen)(van)]Cl and [(Cu(phen))4(resvan)]Cl4 showed axial profiles, while the complex [(Cu(phen))4(resvan)] showed of axial and rhombic profiles, indicating a change in the symmetry of the Cu (II) to this complex environment. The binders vanillin and resvan underwent biological assays with satisfactory results, both exhibited antioxidant activity and low toxicity, as well vanillin present antitoxopl?smico character.

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2016-02-05T22:05:48Z No. of bitstreams: 1 LeonardoDeSaCosta_DISSERT.pdf: 2101335 bytes, checksum: ac42734e9bbfbba5815b32c66600ff2b (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2016-02-15T23:04:07Z (GMT) No. of bitstreams: 1 LeonardoDeSaCosta_DISSERT.pdf: 2101335 bytes, checksum: ac42734e9bbfbba5815b32c66600ff2b (MD5) / Made available in DSpace on 2016-02-15T23:04:07Z (GMT). No. of bitstreams: 1 LeonardoDeSaCosta_DISSERT.pdf: 2101335 bytes, checksum: ac42734e9bbfbba5815b32c66600ff2b (MD5) Previous issue date: 2014-02-27 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES / Este trabalho teve a finalidade de promover a s?ntese, caracteriza??o e de propor uma estrutura molecular para os compostos de coordena??o envolvendo a furosemida (?cido 4- cloro-2-(2-furilmetilamino)-5-sulfamoil-benz?ico), com os ?ons met?licos Ni+2, Zn+2 e Co+2 . Os compostos foram obtidos em meio metan?ico por evapora??o do solvente ap?s o procedimento da s?ntese. Para caracteriza??o dos compostos de coordena??o, foram feitas as determina??es dos teores de metais por complexometria com EDTA, espectroscopia na regi?o do infravermelho (FTIR), solubilidade dos compostos em diversos solventes, an?lise termogravim?trica (TG), calorimetria explorat?ria diferencial (DSC), an?lise t?rmica diferencial (DTA) e a determina??o dos teores de carbono, nitrog?nio e hidrog?nio (CHN). Os resultados da espectroscopia na regi?o do infravermelho sugerem que o ligante se coordene de forma bidentada, com os ?ons met?licos. As intera??es com os centros met?licos ocorrem pela coordena??o do ?tomo de nitrog?nio do grupo amino e pelo ?tomo de oxig?nio do ?cido carbox?lico da estrutura da furosemida. Com os resultados dos teores de metais, an?lise elementar (CHN) e an?lise t?rmica, foram poss?veis propor as estruturas dos complexos. Os valores de condutividade molar em acetonitrila indicam que os complexos apresentam comportamento de n?o eletr?lito em solu??o. Os compostos apresentam alta solubilidade em metanol e acetonitrila, j? em ?gua s?o parcialmente insol?veis. Atrav?s dos resultados das an?lises t?rmicas (TG, DSC, DTA), obteve-se o comportamento t?rmico dos compostos como: etapas de desidrata??o, estabilidade t?rmica, decomposi??o e as energias envolvidas. / This work aimed to promote the synthesis, characterization and propose a plausible molecular structure for coordination compounds involving furosemide (4-Chloro-2-(2- furylmethylamino)-5-sulfamoyl-benzoic acid) with the metal ions Ni+2, Zn+2 and Co+2. The compounds were obtained in methanoic medium by evaporation of the solvent after the synthesis procedure. For characterization of coordination compounds determining the levels of metals by EDTA complexometry, infrared spectroscopy (FTIR), solubility of compounds in various solvents, thermogravimetry (TG), differential scanning calorimetry (DSC), differential thermal analysis were made (DTA), determination of the carbon , hydrogen and nitrogen (CHN). The results of infrared spectroscopy in the region suggest that the organic ligand is coordinated in a bidentate fashion to the metal ions, the metal center interactions to occur by the coordination of the nitrogen atom of the amino group and the oxygen atom of the carboxylic acid of the structure of furosemide. With the results of the levels of metal, elemental analysis (CHN) and thermal analysis has been possible to propose the structure of the ligand. The values of the molar conductivity of the complex in acetonitrile behavior suggest the non acetonitrile electrolyte solution. With the solubility tests it was found that the compounds have high solubility in methanol and acetonitrile, as are partially insoluble in water. From the results of thermal analysis (TG, DSC, DTA), it was possible to obtain the thermal behavior of the compounds as stages of dehydration, thermal stability, decomposition and the energies involved.

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2018-03-13T12:38:22Z No. of bitstreams: 1 HugoLopesDeAraujo_DISSERT.pdf: 3125432 bytes, checksum: 6eb44e30d262c3ba524e8f8dade800da (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2018-03-19T15:06:46Z (GMT) No. of bitstreams: 1 HugoLopesDeAraujo_DISSERT.pdf: 3125432 bytes, checksum: 6eb44e30d262c3ba524e8f8dade800da (MD5) / Made available in DSpace on 2018-03-19T15:06:46Z (GMT). No. of bitstreams: 1 HugoLopesDeAraujo_DISSERT.pdf: 3125432 bytes, checksum: 6eb44e30d262c3ba524e8f8dade800da (MD5) Previous issue date: 2017-11-24 / Considerando-se o atual momento na gest?o p?blica brasileira, onde se prioriza os princ?pios da efici?ncia e a qualidade dos servi?os prestados, se faz preciso a constante melhoria dos procedimentos administrativos das institui??es em geral, em especial das institui??es p?blicas, criticadas pela sociedade. Os processos s?o a base do funcionamento das institui??es, fontes de cont?nuas melhorias neste trabalho. Este estudo tem como objetivo propor melhorias a partir do mapeamento de processos do curso de gradua??o em administra??o da Universidade Federal do Rio Grande do Norte - UFRN, contemplando a identifica??o, a descri??o e a elabora??o dos fluxos de atividades acad?micas. Nesse sentido, realizou-se uma an?lise na Coordena??o do curso de gradua??o em Administra??o baseada na t?cnica de pesquisa-a??o, com finalidade explorat?rio-descritiva. Adotou-se como estrat?gica metodol?gica a pesquisa documental; pesquisa bibliogr?fica; e estudo de caso. Utilizou-se a abordagem qualitativa, uma vez que n?o se pretendia chegar a dados estat?sticos, visando compreender os aspectos dos processos da Coordena??o e as informa??es que influenciam no desempenho desses. Ap?s a an?lise dos processos considerados foi realizada a elabora??o dos fluxos atrav?s da nota??o BPMN com o uso do software Bizagi Process Modeler ? BPM. Foram feitas propostas de melhorias para os processos, como torna-los eletr?nicos e eliminar fluxos burocr?ticos desnecess?rios, e para a realiza??o das atividades do setor, visando melhorar a efici?ncia e a qualidade dos servi?os. Melhorias estas aplic?veis a todas as coordena??es de cursos de gradua??o que utilizem o sistema SIGAA. Ademais, foi criada uma carta de servi?os, descrevendo e disponibilizando aos usu?rios, todos os servi?os desenvolvidos pelo setor. / Considering the current moment in Brazilian public management, where priority is given to the principles of efficiency and the quality of services provided, it is necessary to constantly improve the administrative procedures of institutions in general, especially public institutions, criticized by society. The processes are the basis of the functioning of the institutions, sources of continuous improvements in this work. This study aims to propose improvements from the mapping of processes of the undergraduate course in administration of the Federal University of Rio Grande do Norte - UFRN, contemplating the identification, description and elaboration of flows of academic activities. In this sense, an analysis was conducted in the Coordination of the undergraduate course in Administration based on the research-action technique, with an exploratory-descriptive purpose. Documentary research was adopted as a methodological strategy; bibliographic research; and case study. The qualitative approach was used, since it was not intended to reach statistical data, aiming to understand the aspects of the Coordination processes and the information that influence the performance of these. After the analysis of the processes considered, the elaboration of the flows through the BPMN notation using the Bizagi Process Modeler - BPM software was performed. Proposals were made to improve processes, such as making them electronic and eliminate unnecessary bureaucratic flows, and to carry out activities in the sector, in order to improve the efficiency and quality of services. These improvements apply to all coordinations of undergraduate courses that use the SIGAA system. In addition, a service letter was created, describing and making available to users, all the services developed by the sector.

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2017-02-02T12:57:08Z No. of bitstreams: 1 TicianaPatriciaDaSilveiraCunhaCoutinho_DISSERT.pdf: 1167984 bytes, checksum: 73e9dcaf67be55202d38d9eb25532645 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2017-02-08T16:03:18Z (GMT) No. of bitstreams: 1 TicianaPatriciaDaSilveiraCunhaCoutinho_DISSERT.pdf: 1167984 bytes, checksum: 73e9dcaf67be55202d38d9eb25532645 (MD5) / Made available in DSpace on 2017-02-08T16:03:18Z (GMT). No. of bitstreams: 1 TicianaPatriciaDaSilveiraCunhaCoutinho_DISSERT.pdf: 1167984 bytes, checksum: 73e9dcaf67be55202d38d9eb25532645 (MD5) Previous issue date: 2016-07-11 / No presente estudo, temos o objetivo de compreender os sentidos atribu?dos por pedagogas ? sua a??o como a??o mediadora. Como quest?o de partida, buscamos responder ? seguinte indaga??o: quais os sentidos atribu?dos pelas pedagogas ? sua a??o no contexto do Instituto Federal de Educa??o, Ci?ncia e Tecnologia do Rio Grande do Norte (IFRN)? Para a orienta??o da an?lise, assumimos o pressuposto de que os sentidos atribu?dos pelas pedagogas ? sua a??o mediadora s?o institucionais, complexos e fazem-se de forma individual e coletiva com vistas ? qualidade do trabalho pedag?gico e educativo no IFRN. Para uma discuss?o dos conceitos relevantes, consideramos os debates, que ocorrem no cen?rio educacional, das quest?es referentes ao estudo da Pedagogia como Ci?ncia da Educa??o, a fun??o do pedagogo no interior das institui??es escolares e a pr?pria identidade desse profissional na coordena??o pedag?gica, bem como sua forma??o e atua??o. Definimos como unidade de refer?ncia principal as falas de seis pedagogas, que atuam em espa?os diferentes da Institui??o, considerando as suas atribui??es definidas institucionalmente e o seu fazer di?rio na busca da compreens?o dos sentidos atribu?dos a sua a??o como a??o mediadora. Utilizamos como abordagem metodol?gica a Entrevista Compreensiva, desvelando o objeto de estudo a partir da escuta e interpreta??o do conjunto de falas dos sujeitos. Compreendemos que os sentidos que as pedagogas atribuem ? sua a??o, no contexto do IFRN, s?o forjados no seu fazer di?rio, imersos em teias configuracionais, permeados de processos dilem?ticos, e, assim, em movimento que engloba tens?es e conflitos geradores de potenciais de bloqueios e mudan?as. Com essa pesquisa, esperamos contribuir com a reflex?o da atua??o desse profissional como coordenador pedag?gico seja no contexto dos espa?os escolares, seja nos institutos federais e, de modo mais espec?fico, no interior do IFRN. / This study aims to understand the senses attributed by pedagogues to their professional practices. As an initial question, we seek to answer the following inquiry: what are the senses attributed by pedagogues to their practices at IFRN? In order to guide the analysis, we assume that the attributed senses to their mediation actions are institutional, complex and created individually and collectively. They are constituted that way to achieve quality at the pedagogical and educational work at Instituto Federal de Educa??o, Ci?ncia e Tecnologia Rio Grande do Norte (IFRN), which could be translated as Federal Institute of Education, Science and Technology of Rio Grande do Norte, in Brazil. Regarding to discussing relevant concepts, we consider that the referred debates occur at an educational scenery of issues related to the Pedagogy as Educational Science, the role of pedagogues at schools and their own professional identity at the pedagogical coordination, as well as their education and work. We have chosen as investigation subjects six pedagogues who work at different institutional departments by considering their institutional attributions and their daily work when seeking for senses. We have used the Comprehensive Interview as methodological approach, which aims to reveal the study object through the subjects? speech. Therefore, we believe that this research will be able to contribute with the reflection about the studied professional at school contexts, at Brazilian Federal Institutes and, specifically, at IFRN.

Submitted by Setor de Tratamento da Informa??o - BC/PUCRS (tede2@pucrs.br) on 2016-01-20T19:00:43Z No. of bitstreams: 1 TES_MICHELE_MARINHO_DA_SILVEIRA_COMPLETO.pdf: 10892110 bytes, checksum: 56f787639c323e06dfbd8f33f743d353 (MD5) / Made available in DSpace on 2016-01-20T19:00:44Z (GMT). No. of bitstreams: 1 TES_MICHELE_MARINHO_DA_SILVEIRA_COMPLETO.pdf: 10892110 bytes, checksum: 56f787639c323e06dfbd8f33f743d353 (MD5) Previous issue date: 2015-12-16 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES / Introduction: Cognitive and motor performance of elderly are related to their health, quality of life and emotional state, considered as an important factor of active aging and longevity. Studies show that the process of human aging lead to a functional decrease, loss of muscular strength, and cognitive. However, some studies show that use of the computer can improve the manual skills and cognitive abilities, the quality of life and the emotional state of the elderly. Objective: verify the effects of computer use on cognitive performance, emotional state (anxiety and depression), quality of life and manual motor skill (fine motor skills and handgrip strength) of participants in computer workshops. Method: cohort observational study, involving 114 elderly, who were divided into group without computer (GWC) with 58 seniors and computing group (CG) with 56 seniors. Participants were recruited by sampling method of convenience in two groups of interaction of elderly of Passo Fundo, RS. The elderly were interviewed individually in pre and post-activity, answering sociodemographic questions, cognitive performance (Addenbrooke?s Cognitive Examination-Revised - ACE-R), depressive symptoms (Geriatric Depression Scale (GDS-15), symptoms of anxiety (Beck Anxiety Inventory -BAI), perception of quality of life (WHOQOL-Bref), handgrip strength (dynamometer Saehan Corporation?) and fine motor skills (manual skills panel). Results: After the activity, the elderly of the IG showed a significant improvement in relation to the total cognitive performance and its domains memory and language, symptoms of depression, and physical domain quality of life, handgrip strength and fine motor skills, compared to GWC. Conclusions: the use of the computer may contribute positively to the cognitive functionality the elderly, improving their emotional state, quality of life and manual motor skills. / Introdu??o: O desempenho cognitivo e motor de idosos est? relacionado ? sa?de, ? qualidade de vida e ao estado emocional, considerados como um importante fator de envelhecimento ativo e longevidade. Estudos mostram que o processo de envelhecimento humano leva ? diminui??o funcional, ? perda de for?a muscular e cognitiva. No entanto, pesquisas revelam que o uso do computador pode melhorar as habilidades manuais e cognitivas, a qualidade de vida e o estado emocional de idosos. Objetivo: verificar os efeitos do uso do computador no desempenho cognitivo, estado emocional (ansiedade e depress?o), qualidade de vida e habilidade motora manual (motricidade fina e for?a de preens?o manual) de participantes de oficinas de inform?tica. M?todo: estudo observacional de coorte, com a participa??o de 114 idosos, que foram divididos em grupo sem inform?tica (GSI) com 58 idosos e grupo com inform?tica (GCI) com 56 idosos. Os participantes foram recrutados pelo m?todo amostral de conveni?ncia em dois grupos de conviv?ncia de idosos do munic?pio de Passo Fundo-RS. Os idosos foram entrevistados individualmente no pr? e p?s-atividade, respondendo a quest?es sociodemogr?ficas, desempenho cognitivo (Exame Cognitivo de Addenbrooke Revisado ? ACE-R), sintomatologia depressiva (Escala de Depress?o Geri?trica ? GDS-15), sintomas de ansiedade (Invent?rio de Ansiedade de Beck ? BAI), percep??o de qualidade de vida (WHOQOL-Bref), for?a de preens?o manual (dinam?metro Saehan Corporation?) e motricidade fina (painel de habilidades manuais). Resultados: Ap?s atividade, os idosos do GCI apresentaram melhora significativa em rela??o ao desempenho cognitivo total e seus dom?nios mem?ria e linguagem, sintomas de depress?o, dom?nio f?sico de qualidade de vida, for?a de preens?o manual e motricidade fina, comparado ao GSI. Conclus?es: o uso do computador contribuiu positivamente para a funcionalidade cognitiva do idoso, melhorando seu estado emocional, sua qualidade de vida e sua habilidade motora manual.

Submitted by Sara Ribeiro (sara.ribeiro@ucb.br) on 2018-01-19T13:35:26Z No. of bitstreams: 1 BrunodeMacedoCavalcantiBorgesPimentelDissertacao2017.pdf: 2375544 bytes, checksum: f22e5a97454c348f3a9ba4a7c06ac8d0 (MD5) / Approved for entry into archive by Sara Ribeiro (sara.ribeiro@ucb.br) on 2018-01-19T13:35:39Z (GMT) No. of bitstreams: 1 BrunodeMacedoCavalcantiBorgesPimentelDissertacao2017.pdf: 2375544 bytes, checksum: f22e5a97454c348f3a9ba4a7c06ac8d0 (MD5) / Made available in DSpace on 2018-01-19T13:35:39Z (GMT). No. of bitstreams: 1 BrunodeMacedoCavalcantiBorgesPimentelDissertacao2017.pdf: 2375544 bytes, checksum: f22e5a97454c348f3a9ba4a7c06ac8d0 (MD5) Previous issue date: 2017-08-25 / The evaluation of the stricto sensu graduation was consolidated as an instrument of great importance for the National Graduate System (SNPG) and for the promotion of scientific research and technological development in Brazil. This research addresses the issue of the stricto sensu graduate course evaluation in Brazil according to the interpretation of the managers involved in the evaluation process of the Coordination of Improvement of Higher Education Personnel (Capes). The objective was to investigate the interpretation of the coordinators of graduate programs in education regarding the use of the Sucupira Platform for the programs evaluation during the quadrennium 2013-2016. The research has a qualitative nature, although it is based on the analysis of quantitative data. In relation to the theoretical basis, the research was developed based on the Policy Cycle Approach, developed by Stephen Ball, Richard Bowe and Anne Gold (BALL; BOWE; GOLD, 1992; BALL, 1994). This method is an important theoretical analytical tool for the understanding, study, evaluation and analysis of educational policies. Three techniques were used to investigate the object under study: the semi-structured interview carried out in four programs in the area of education in the Center-West region; The mixed format questionnaire applied electronically to all coordinators of the one hundred and seventy four education programs currently operating in the country; And documentary analysis. The questionnaires were sent and the data processed through the computer program "SurveyMonkey". The research data were analyzed based on content analysis according to Laurence Bardin (2011). The data indicate that the coordinators of the education programs identify the integration of the Platform with the other instruments, but ask for improvement in this interaction. The coordinators recognize the Platform as the main instrument for the evaluation of graduate studies and its importance for the improvement of the SNPG. They interpret the filling in the Platform data according to the realities and the peculiarities of its programs and seek to adapt to the requirements of Capes for the evaluation. They report difficulties in filling in the programs data in the Platform, since it is an eminently manual, detailed, exhaustive activity that still has operational failures on the system. However, they recognize the substantial improvement in the process of sending the Data Collection. In general, the filling in the Platform data is done by the secretaries of the programs, supervised by the coordinators. The questionnaire data and the interviewed managers' talk about the Sucupira Platform's contributions and the objectives reached demonstrate the success of the system. However, they criticize some specific points of the Platform, such as the loss of registered data. They also criticize the Capes evaluation system, especially in relation to the criteria used in the periodic evaluations of the programs and the Qualis system classification of the teachers and students intellectual production evaluation. The research suggests improvements in the management of programs data in the Platform by the coordinators and the improvement of the evaluation process of the graduate programs by Capes. / A avalia????o da p??s-gradua????o stricto sensu se consolidou como instrumento de grande import??ncia para o Sistema Nacional de P??s-Gradua????o (SNPG) e para o fomento da pesquisa cient??fica e desenvolvimento tecnol??gico no Brasil. Esta pesquisa aborda a quest??o da avalia????o da p??s-gradua????o stricto sensu no Brasil segundo a interpreta????o dos gestores envolvidos com o processo de avalia????o da Coordena????o de Aperfei??oamento de Pessoal de N??vel Superior (Capes). O objetivo foi investigar a interpreta????o dos coordenadores de programas de p??s-gradua????o em educa????o acerca do uso da Plataforma Sucupira na avalia????o dos programas no quadri??nio 2013-2016. A pesquisa possui uma natureza prioritariamente qualitativa, embora se apoie na an??lise de dados quantitativos. Em rela????o ?? fundamenta????o te??rica, o estudo foi desenvolvido com aproxima????o ao m??todo do Ciclo de Pol??ticas (Policy Cicle Approach), concebido por Stephen Ball, Richard Bowe e Anne Gold (BALL; BOWE; GOLD, 1992; BALL, 1994). Esse m??todo constitui-se em uma ferramenta te??rica anal??tica importante para a compreens??o, estudo, avalia????o e an??lise das pol??ticas educacionais. Foram utilizadas tr??s t??cnicas para investiga????o do objeto em estudo: a entrevista semiestruturada realizada em quatro programas da ??rea de educa????o da regi??o Centro-Oeste; o question??rio de formato misto aplicado de forma eletr??nica para todos os coordenadores dos cento e setenta e quatro programas da ??rea de educa????o em funcionamento no pa??s; e a an??lise documental. Os question??rios foram enviados e os dados tratados atrav??s do programa de computador ???SurveyMonkey???. Os dados da pesquisa foram analisados com base na an??lise de conte??do de Laurence Bardin (2011). Os dados indicam que os coordenadores dos programas da ??rea de educa????o reconhecem a integra????o da Plataforma com os demais instrumentos de avalia????o da Capes, mas pedem a melhoria nessa intera????o. Os coordenadores reconhecem a Plataforma como principal instrumento de avalia????o da p??s-gradua????o e sua import??ncia para o aperfei??oamento do SNPG. Interpretam o preenchimento da Plataforma de acordo com as realidades e as particularidades dos seus programas e buscam se adequar ??s exig??ncias da Capes para a avalia????o. Relatam dificuldades em rela????o ao preenchimento das informa????es dos programas na Plataforma, por ser uma atividade eminentemente manual, detalhista, exaustiva e que ainda apresenta falhas operacionais do sistema. Todavia reconhecem a melhoria substancial do processo de envio do Coleta de dados. Em geral, o preenchimento da Plataforma ?? feito pelos secret??rios dos programas, supervisionados pelos coordenadores. Os dados dos question??rios e a fala dos gestores entrevistados sobre as contribui????es da Plataforma Sucupira e os objetivos atingidos atestam o ??xito do sistema. Por??m, criticam alguns pontos espec??ficos da Plataforma, como a perda de dados cadastrados. Criticam tamb??m o sistema de avalia????o da Capes, especialmente em rela????o aos crit??rios utilizados nas avalia????es peri??dicas dos programas e o sistema Qualis de classifica????o da produ????o intelectual dos docentes e discentes. A pesquisa sugere melhorias no gerenciamento das informa????es dos programas na Plataforma pelos coordenadores e o aperfei??oamento do processo de avalia????o da p??s-gradua????o pela Capes.

Made available in DSpace on 2014-12-17T15:42:17Z (GMT). No. of bitstreams: 1 VeronicaSO_DISSERT.pdf: 3422406 bytes, checksum: d33eed82fa27aa7c5249e32ca3da7fd8 (MD5) Previous issue date: 2014-01-22 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior / The present work has as main objective to contribute to the coordination chemistry of the ligand kojic acid, with the synthesis and characterization of the homoleptic compounds [Al(kj)3], [Fe(kj)3], [Fe(kj)2], [Cu(kj)2] e [Ru(kj)3], and the new heteroleptic complexes, trans- K2[Fe(kj)2(CN)2] and trans-Na2[Ru(kj)2(CN)2]. The obtained compounds were characterized by vibrational spectroscopy in the infrared region (IV) and Electronic spectroscopy in the ultraviolet and visible region (Uv-Vis). The infrared results indicated the coordination of the bidentate ligand kojic acid, due to reductions in the values of the stretching frequencies of the carbonyl and double bonds, compared to the free ligand for all complexes obtained. The presence of new vibrational modes indicated the change of symmetry of the molecules in the new compounds synthesized. Additionally, the presence of vibrational modes assigned to metal-oxygen also contributed to confirm the ligand coordinating to the metal ions. Through this technique, was also possible to perform correlations of the numbers of vibrational modes, in the region 1400-900 cm-1 and the compounds geometry. The heteroleptic compounds exhibited υC≡N in 2065 and 2053 cm-1, respectively, for the trans-K2[Fe(kj)2(CN)2] and trans-Na2[Ru(kj)2(CN)2], indicating coordination of the cyano ligand to metal ions FeII e RuII. Comparing the obtained values with literature data was possible to identify the complex isomerism as trans. In relation to the results of electronic spectroscopy, studies of pH variation of kojic acid provided information on the distribution of electron density in the molecule, showing characteristic spectral profile of kojic ion and its protonated form (Hkj, kojic acid), with two bands at 215 and 269 nm, or deprotonated (kj-), with bands at 226 and 315 nm. The electronic spectra obtained for all complexes in aqueous medium, in the ultraviolet region, exhibited variations of the energies assigned to kojic acid intraligand transitions while in the visible region, only transitions assigned to charge transfer of iron and ruthenium complex have been identified / Com o presente trabalho tem-se como objetivo contribuir com a qu?mica de coordena??o do ligante ?cido k?jico, com a s?ntese e caracteriza??o de compostos homol?pticos [Al(kj)3], [Fe(kj)3], [Fe(kj)2], [Cu(kj)2] e [Ru(kj)3], assim como dos novos complexos heterol?pticos, trans-K2[Fe(kj)2(CN)2] e trans-Na2[Ru(kj)2(CN)2]. Os compostos obtidos foram caracterizados atrav?s da espectroscopia vibracional na regi?o do infravermelho e da espectroscopia eletr?nica na regi?o do ultravioleta e vis?vel (Uv-Vis). Os resultados de infravermelho comprovaram a coordena??o do ligante bidentado ?cido k?jico, devido ?s redu??es dos valores das frequ?ncias de estiramento da carbonila e das duplas liga??es, comparativamente ao ligante livre, para todos os complexos obtidos. Assim como a verifica??o de novos modos vibracionais, em decorr?ncia da altera??o de simetria da mol?cula na forma??o de novas estruturas para os compostos sintetizados. Al?m de modos vibracionais atribu?dos aos estiramentos metal-oxig?nio, evidenciando coordena??o dos ?ons met?licos ao ligante. Atrav?s dessa t?cnica, tamb?m foi poss?vel realizar correla??es dos n?meros de modos vibracionais, na regi?o de 1400 a 900 cm-1, com a geometria dos compostos. Adicionalmente aos complexos homol?pticos, os compostos heterol?pticos exibiram frequ?ncias de υC≡N em 2065 e 2053 cm-1, respectivamente, para o trans-K2[Fe(kj)2(CN)2] e o trans-Na2[Ru(kj)2(CN)2], indicando coordena??o do ligante ciano aos ?ons met?licos de FeII e RuII. Comparativamente com dados da literatura, foi poss?vel propor a isomeria, caracterizando os complexos em configura??o trans. E com rela??o aos resultados da espectroscopia eletr?nica, os estudos da varia??o do pH do ?cido k?jico forneceram informa??es sobre a distribui??o de densidade eletr?nica na mol?cula, apresentando perfil espectral caracter?stico do ?on k?jico na sua forma protonada (Hkj, ?cido k?jico), com duas bandas em 215 e 269 nm, ou desprotonada (kj-), com bandas em 226 e 315 nm. E os espectros eletr?nicos obtidos para todos os complexos em meio aquoso, na regi?o do ultravioleta exibiram varia??es das energias atribu?das ?s transi??es intraligantes do ?cido k?jico, e na regi?o do vis?vel, s? foram identificadas transi??es para os complexos de ferro e rut?nio, atribu?das em sua maioria as transfer?ncia de carga