Submitted by Caroline Xavier (caroline.xavier@pucrs.br) on 2017-11-03T13:31:10Z No. of bitstreams: 1 TES_JOSE_AUGUSTO_RIBAS_MIRANDA_COMPLETO.pdf: 2659889 bytes, checksum: ffbd6a45396b2242db111ee4e08fd808 (MD5) / Approved for entry into archive by Caroline Xavier (caroline.xavier@pucrs.br) on 2017-11-03T13:31:27Z (GMT) No. of bitstreams: 1 TES_JOSE_AUGUSTO_RIBAS_MIRANDA_COMPLETO.pdf: 2659889 bytes, checksum: ffbd6a45396b2242db111ee4e08fd808 (MD5) / Made available in DSpace on 2017-11-03T13:31:35Z (GMT). No. of bitstreams: 1 TES_JOSE_AUGUSTO_RIBAS_MIRANDA_COMPLETO.pdf: 2659889 bytes, checksum: ffbd6a45396b2242db111ee4e08fd808 (MD5) Previous issue date: 2017-07-31 / Conselho Nacional de Pesquisa e Desenvolvimento Cient?fico e Tecnol?gico - CNPq / This doctoral thesis presents a comparative analysis of the Brazilian and Peruvian strategies to get access to the London financial market between 1850 and 1880. Between these three decades, Brazil and Peru were the biggest borrowers at the London financial market, concentrating almost half of the total British capital for the Latin America in the shape of public loans. Both countries developed autonomous and creative strategies to get access to considerable amount of capital in London. Hence, the analysis begins with a comparative view of the disparities between Brazil and Peru as a investment field for British investors. Right after, the analysis encompass the good results achieved by both countries in the British financial market. The last chapter contemplates the strategies created by both countries, and how they applied their political, economic and financial resources in order to get access to the loans in the biggest financial market of 19th century. / O presente trabalho analisa comparativamente as estrat?gias de obten??o de capital dos governos brasileiro e peruano no mercado financeiro Londrino entre 1850-1880. Brasil e Peru se tornaram os dois maiores mutu?rios latino-americanos no mercado de capitais de Londres entre 1850-1880. Contando com quase metade de todo o capital de empr?stimo brit?nico investido na Am?rica Latina ? ?poca, os governos do Brasil e Peru desenvolveram estrat?gias diferentes para alcan?arem resultados positivos e semelhantes. Partindo da an?lise das diferen?as de Brasil e Peru como lugar de investimento brit?nico no s?culo 19, este trabalho comparou seus resultados, encontrando duas trajet?rias distintas e eficientes para atra?rem vultosos capitais de empr?stimo por meio de venda de t?tulos de d?vida p?blica na Bolsa de Valores de Londres. A an?lise comparada acompanha a evolu??o do sistema financeiro global entre 1850 e 1880 apontando os recursos pol?ticos, econ?micos e financeiros utilizados por ambos pa?ses latino-americanos apara aceder ? principal pra?a financeira mundial com resultados positivos.

Submitted by Caroline Xavier (caroline.xavier@pucrs.br) on 2017-10-20T12:32:52Z No. of bitstreams: 1 TES_FELIPE_NODARI_COMPLETO.pdf: 2781908 bytes, checksum: b5a16eaa2af20564fd2e6aba9e452fe0 (MD5) / Made available in DSpace on 2017-10-20T12:32:53Z (GMT). No. of bitstreams: 1 TES_FELIPE_NODARI_COMPLETO.pdf: 2781908 bytes, checksum: b5a16eaa2af20564fd2e6aba9e452fe0 (MD5) Previous issue date: 2017-08-22 / Academics points out Dynamic Capabilities as one of the most prominent theories in the strategic management field. This theory addresses how companies can achieve higher levels of organizational performance through the reconfiguration of their resources and capabilities. Despite its wide acceptance, researches on the subject still faces significant barriers: the lack of a valid and widely accepted measures due to uncertainties about its key concepts, and which contingencies affect the relationship between dynamic capacities and organizational performance. Dynamic capabilities are underpinned by knowledge resources, owned, or accessed by organizations, to explore opportunities and promote organizational reconfiguration. This study proposes that absorptive capacity, which focus on the evolution of the company's knowledge, complements the capacities of sensing, seizing and reconfiguring, as the dimensions of the dynamic capacities in an organization. In addition, it studies the relationship of internal and external social capital of organizations with dynamic capacities, mediated by the processes of sharing of interorganizational and intraorganizational knowledge, in order to elucidate the contribution of the knowledge from these two environments. Through a survey with 472 companies from Rio Grande do Sul, the model was validated with structural equation modeling. The results show that internal and external social capital, interorganizational and intraorganizational knowledge sharing, and dynamic capacities have a significant impact on organizational performance. Sharing knowledge with partner companies has greater influence on dynamic capabilities and performance than intraorganizational knowledge sharing, especially in dynamic environments. Regarding the four proposed dimensions for dynamic capacities, absorptive capacity precedes the capacities of sensing, seizing and reconfiguring, while detection enhances seizing opportunities and organizational reconfiguration. Looking for managerial contributions, this study proposes suggestions to facilitate the development of dynamic capabilities in organizations, which include the establishment of specific routines for sensing opportunities and threats, based on interorganizational relationships; the constitution of two distinct processes, one focused on taking advantage of the detected opportunities, and another, with a specific focus on organizational reconfiguration; the development of internal relations based on trust, common language and reciprocity facilitate the development of external relations; and the participation of individuals with different knowledge bases can enable the interpretation of opportunities in the external environment, contributing to their use on the organizational reconfiguration. / A literatura aponta as Capacidades Din?micas como uma das teorias mais proeminentes no campo da gest?o estrat?gica, pois aborda como empresas podem atingir patamares superiores de desempenho organizacional por meio da reconfigura??o dos seus recursos e capacidades. Apesar de sua ampla aceita??o no campo acad?mico, o progresso nas pesquisas sobre o tema enfrenta barreiras significativas: a falta de um modelo de mensura??o v?lido e com ampla aceita??o, devido a indefini??es sobre a mensura??o de quais s?o seus conceitos chaves, e quais conting?ncias afetam a rela??o das capacidades din?micas com o desempenho organizacional. As capacidades din?micas possuem uma depend?ncia dos recursos de conhecimento possu?dos ou acessados pelas organiza??es, de forma a possibilitar o aproveitamento das oportunidades e a reconfigura??o organizacional. Este trabalho prop?e que a capacidade absortiva, que possui foco na evolu??o do conhecimento da empresa, complementa as capacidades de detec??o, apreens?o e reconfigura??o, como as dimens?es das capacidades din?micas em uma organiza??o. Al?m disso, estuda a rela??o do capital social interno e externo das organiza??es com as capacidades din?micas, mediada pelos processos de compartilhamento de conhecimento interorganizacional e intraorganizacional, de forma a elucidar a contribui??o do conhecimento proveniente destes dois ambientes. Para isso, esta pesquisa explicativa, de car?ter quantitativo, utilizou uma survey com 472 empresas do Rio Grande do Sul para validar o modelo de mensura??o proposto e testar as rela??es propostas por meio da utiliza??o de modelagem de equa??es estruturais. Os resultados apontam que o modelo composto pelo capital social (interno e externo), os processos de compartimento e as capacidades din?micas possuem impacto significativo no desempenho organizacional, e que o conhecimento acessado al?m dos limites organizacionais, por meio do compartilhamento de conhecimento com empresas parceiras, possui maior influ?ncia nas capacidades din?micas e no desempenho que o conhecimento compartilhado dentro da organiza??o, principalmente em ambientes din?micos. Quanto ?s dimens?es das capacidades din?micas, al?m da valida??o da modelagem de uma vari?vel de segunda ordem para as capacidades din?micas, foram estudadas as rela??es entre suas dimens?es: a capacidade absortiva precede as capacidades de detec??o, apreens?o e reconfigura??o, enquanto a detec??o potencializa a apreens?o de oportunidades e a reconfigura??o organizacional. No que diz respeito ?s contribui??es gerenciais, foram elencadas proposi??es para facilitar o desenvolvimento das capacidades din?micas nas organiza??es, que incluem o estabelecimento de rotinas espec?ficas para o monitoramento do ambiente, baseadas nas rela??es interorganizacionais, para o monitoramento de oportunidades e amea?as; a constru??o de dois processos distintos, um focado no aproveitamento das oportunidades detectadas, e outro, com foco espec?fico na reconfigura??o organizacional; que o desenvolvimento de rela??es internas de confian?a, linguagem comum e reciprocidade facilitam o desenvolvimento das externas; e que a participa??o de indiv?duos com diferentes bases de conhecimento por viabilizar a correta interpreta??o de oportunidades no ambiente externo, contribuindo seu aproveitamento e na reconfigura??o organizacional.

Submitted by Setor de Tratamento da Informa??o - BC/PUCRS (tede2@pucrs.br) on 2015-07-01T22:12:08Z No. of bitstreams: 1 471580 - Texto Completo.pdf: 951978 bytes, checksum: 52153ec551753704338a438226e8a332 (MD5) / Made available in DSpace on 2015-07-01T22:12:08Z (GMT). No. of bitstreams: 1 471580 - Texto Completo.pdf: 951978 bytes, checksum: 52153ec551753704338a438226e8a332 (MD5) Previous issue date: 2015-03-27 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES / The objective of this study is to analyze poverty in the North of Brazil in 2000 and ). This exercise is important to understand poverty in the NR, mainly because the region is marked by peculiarities that differentiates it from other regions of Brazil and also because it is considered by the IFDM as the most backward region of the country. In addition, SEN (2000) argues that poverty cannot be measured by a single factor; it is a phenomenon that has many dimensions. The MHPI-NR is based on the HPI published in 1997 by UNDP. It was also measured by a one-dimensional poverty index (P0), which only considers the income of the people, to make a comparison between the two indexes and check the differences between them. The results show that different ways of looking at poverty produce different diagnoses, having a low incidence of income poverty does not mean, exactly, having a low incidence of human poverty, and vice versa. Human poverty is more homogeneous than income poverty. Also a high reduction in P0, that is, an increase of income of the population, was not reflected in a reduction in the same proportion in the MHPI-NR, which measures the quality of life of the population.2010 with the construction of a multidimensional index, the Municipal Human Poverty Index of the Northern Region (MHPI-NR / O objetivo deste trabalho ? analisar a pobreza na Regi?o Norte do Brasil em 2000 e 2010 a partir da constru??o de um ?ndice multidimensional, o ?ndice de Pobreza Humana Municipal da Regi?o Norte (IPHM-RN). Tal exerc?cio ? importante para compreender a pobreza na RN, principalmente pelo fato da regi?o ser marcada por peculiaridades que a diferencia das demais regi?es do Brasil e tamb?m por ser considerada pelo IFDM como a regi?o mais atrasada do pa?s. Al?m disso, SEN (2000) afirma que a pobreza n?o pode ser mensurada atrav?s de um ?nico fator, ela ? um fen?meno que possui diversas dimens?es. O IPHM-RN ? baseado no IPH publicado em 1997 pelo PNUD. Tamb?m foi mensurada a pobreza por um ?ndice unidimensional (P0), que analisa apenas a renda das pessoas, para fazer uma compara??o entre os dois ?ndices e verificar as diferen?as entre eles. Os resultados mostram que formas diferentes de olhar a pobreza produzem diagn?sticos diferentes, possuir uma baixa incid?ncia de pobreza monet?ria n?o significa, exatamente, possuir uma baixa incid?ncia de pobreza humana, e vice-versa. A pobreza humana ? mais homog?nea que a pobreza monet?ria. Tamb?m uma alta redu??o no P0, ou seja, um aumento de renda da popula??o, n?o se refletiu em uma redu??o na mesma propor??o no IPHM-RN, que mensura a qualidade de vida da popula??o.

Submitted by Sara Ribeiro (sara.ribeiro@ucb.br) on 2017-09-04T20:22:35Z No. of bitstreams: 1 LucasLuizVieiraDissertacao2016.pdf: 2717272 bytes, checksum: b547db9dacaad5a2da23826b5d215ccb (MD5) / Approved for entry into archive by Sara Ribeiro (sara.ribeiro@ucb.br) on 2017-09-04T20:23:00Z (GMT) No. of bitstreams: 1 LucasLuizVieiraDissertacao2016.pdf: 2717272 bytes, checksum: b547db9dacaad5a2da23826b5d215ccb (MD5) / Made available in DSpace on 2017-09-04T20:23:00Z (GMT). No. of bitstreams: 1 LucasLuizVieiraDissertacao2016.pdf: 2717272 bytes, checksum: b547db9dacaad5a2da23826b5d215ccb (MD5) Previous issue date: 2016-04-14 / Invasive fungal infections are a major public health problem in the world, since they increase morbidity and patients??? hospitalization time. In Brazil, the highest mortality rate among the systemic mycoses is caused by an endemic disease named paracoccidioimycosis, which the etiologic agent is the dimorphic fungus Paracoccidioides spp. The worldwide increased resistance to the commercially available antifungal agents, their limited spectrum of activity against some fungal pathogens and concerns with their toxic side effects are reasonable evidence of the necessity of novel therapeutic strategies, especially the development of new antifungal agents. Thus, the essential gene rim8 was identified by comparative genomics as an orthologous sequence in the genome of human pathogenic fungi absent in the human genome. In filamentous fungi and yeasts, gene expression regulation by the ambient pH involves components of a signaling pathway that mediate proteolytic activation of the transcription factor PacC/Rim101 in response to alkaline environmental pH. The rim8 gene in yeasts, also called palF in filamentous fungi, performs an essential step in this signaling pathway. It is important for host-pathogen interaction, leading to increased virulence and pathogen survival. Thus, Rim8 is a very interesting and promising drug target. The aim of this work is to optimize heterologous expression and purification of Rim8 protein from P. luzii to further perform its structural and functional characterization and also, to use it as a molecular target for drugs development. The rim8 gene was chemically synthesized with a histidine tag and cloned into a pET-21a vector. Heterologous expression of the gene was made using two strains of E. coli, obtaining the best conditions using LB medium with 0.5% glucose at 30 ??C for 2 hours and 0.25 mM IPTG and adding protease inhibitor cocktail. The Rim8 heterologous protein was purified using a nickel affinity chromatography column. Expression and purification results were analyzed by SDS-PAGE and in some cases, confirmed by western blot. Immunization of BALB/c mice was performed with the purified protein to obtain anti- Rim8 antibodies. The antibody production was confirmed by ELISA test. The protein immunocitolocalization in P. lutzii cells showed a difuse protein-plasma membrane association at acidic pH. At neutral pH the fluorescence pattern is showed as localized foci in plasma membrane and later, with extracellular alcalinization, it migrates into the cytosol. Thus, it can be inferred that this work gives some contribution to the development of new antifungal drugs, but still must undergo further production steps, proteolysis reduction and protein purification to allow structural and functional characterization of Rim8. / Infec????es f??ngicas invasivas s??o um problema de sa??de p??blica no mundo, j?? que aumentam a morbidade e o tempo de interna????o de pacientes. A micose sist??mica com o maior ??ndice de mortalidade no Brasil, onde ?? considerada end??mica, ?? a paracoccidioidomicose, causada pelo fungo dim??rfico Paracoccidioides spp. A tend??ncia global de aumento da resist??ncia aos agentes antif??ngicos dispon??veis comercialmente, o espectro limitado de atividade contra alguns fungos patog??nicos e a preocupa????o com a toxicidade s??o evid??ncias da necessidade de novas estrat??gias terap??uticas, sobretudo do desenvolvimento de novas drogas antif??ngicas. Nesse sentido, o gene essencial rim8 foi identificado por gen??mica comparativa como uma sequ??ncia ort??loga no genoma de fungos patog??nicos humanos e ausente em humanos. Em fungos filamentosos e leveduras, a regula????o da express??o g??nica pelo pH envolve componentes de uma via de sinaliza????o que levam ?? ativa????o proteol??tica do fator de transcri????o PacC/Rim101 em resposta ?? alcaliniza????o do pH externo. O gene rim8 em leveduras ou palF em fungos filamentosos possui um papel essencial nessa cascata de sinaliza????o, sendo importante para a intera????o pat??geno-hospedeiro, aumento de virul??ncia e sobreviv??ncia do pat??geno. Por isso, Rim8 ?? um alvo molecular promissor e bastante interessante para o desenvolvimento de drogas. O objetivo deste trabalho ?? otimizar a express??o heter??loga e purifica????o da prote??na Rim8 de P. lutzii, visando realizar a caracteriza????o estrutural e funcional da prote??na para futuramente utiliz??-la como alvo molecular para o desenvolvimento de drogas. O gene rim8 foi sintetizado quimicamente com cauda de histidinas e foi clonado em vetor pET-21a. A express??o heter??loga do gene foi padronizada usando duas estirpes de E. coli, obtendo as melhores condi????es para purifica????o com o uso de meio LB contendo 0,5% de glicose a 30??C por 2 h e 0,25 mM de IPTG e coquetel de inibidores de proteases. Os resultados da express??o e purifica????o foram analisados por SDS-PAGE e/ou confirmados por western blot. Realizou-se a imuniza????o de camundongos BALB/c com a prote??na purificada para obten????o de anticorpos anti-Rim8. A produ????o dos anticorpos foi confirmada por ELISA. A imunocitolocaliza????o em c??lulas de P. lutzii mostrou que a prote??na se encontra associada ?? membrana plasm??tica de forma difusa em pH ??cido, em seguida apresenta focos localizados em resposta a um pH pr??ximo da neutralidade e, por fim, migra para o interior da c??lula em pH alcalino. Sendo assim, pode-se inferir que o trabalho apresenta contribui????es para o desenvolvimento de novas drogas antif??ngicas, al??m de auxiliar o entendimento do processo biol??gico no qual a prote??na RIM8 est?? envolvida.

Made available in DSpace on 2016-04-28T14:59:45Z (GMT). No. of bitstreams: 1 2008 - Fernanda Nascimento de Godoi.pdf: 4576086 bytes, checksum: a3f0dc242c634f23a23c384810cb8ae4 (MD5) Previous issue date: 2008-02-14 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior / This work aimed to evaluate intake in athletic horses fed diets with soybean oil inclusion and the effects of apparent digestibility of nutrients, digestive kinetics, faeces characters and physiologic, hematological and biochemical parameters and. In first essay, fifteen horses were used in a completely randomized design with three diets and five repetitions. Diets used were: diet without soybean oil inclusion (control); diet with inclusion of 8.5% soybean oil; diet with inclusion of 19.5% soybean oil. Trial had 34 days of duration, 30 days to adaptation of diets and four days to samples collection. Kinetics of liquid phase of digesta was estimated by LIPE? (Isolated Lignin Purified Enriched) in liquid form. The LIPE? was given only one time by oral infusion in 30th day of essay and faeces samples were collected at 2, 4, 8, 12, 16, 20, 24, 30, 36, 42, 48, 54, 60, 66, 72 and 78 hours after. Faeces characteristics were evaluate on 33th and 34th day of essay. Blood samples were taken before and at 34th day. Data were submitted to variance analysis and means compared by Student Newman-Keuls test, at 5% of significance. In secund essay, twelve horses were used in a completely randomized design with two diets and six repetitions. Diets used were: diet without soybean oil inclusion (control); diet with inclusion of 10% soybean oil. The trial had 82 days of duration, with three physical effort tests before, at 60th and at 82th day of trial. Heart frequency and body temperature were evaluation and blood samples for analyze of hematological and biochemical parameters were taken in five moments in function of physical effort tests. The first data collection, before the test, with horses at rest, and immediately after the test, and 10, 20 and 120 minutes after the physical effort tests. Data were submitted to non parametric analysis, at 5% of significance. There was a significant reduction of dry matter intake in horses fed high fat diet. Apparent digestibility of fat increased in high fat diets (P<0.05) and apparent digestibility of cellulose decrease (P>0.05) in diet with 19.5% soybean oil inclusion. Apparent digestibility of others nutrients, except crude protein, digestive kinetics and faeces characteristics were not affecting (P>0.05) in horses fed diets with soybean oil inclusion. Horses fed high fat diet increased (P<0.05) in blood level of erythrocytes, hemoglobin and triglycerides and reduction of mean corpuscular volume. Soybean oil in diets did not affect physiological, hematological and biochemical parameters along the time intake time and in function physical effort tests. High fat diets were palatable and safety without any colic or diarrheas cases. The soybean oil can used in diet for horses, reducing dry matter intake and increasing energy density of diets that is interesting to athletic horses / Objetivou-se avaliar o consumo de dietas com diferentes n?veis de inclus?o de ?leo de soja por eq?inos atletas e os efeitos na digestibilidade aparente dos nutrientes, cin?tica digestiva, caracter?sticas fecais, nos par?metros fisiol?gicos, hematol?gicos e bioqu?micos. No primeiro ensaio foram utilizados quinze eq?inos em delineamento experimental inteiramente casualizado com tr?s dietas e cinco repeti??es. As dietas utilizadas foram: dieta sem inclus?o de ?leo de soja (controle); dieta com inclus?o de 8,5% de ?leo de soja; dieta com inclus?o de 19,5% de ?leo de soja. O ensaio teve dura??o de 34 dias, sendo 30 dias de adapta??o dos eq?inos ?s dietas e quatro dias de coleta de amostras. A cin?tica da fase l?quida da digesta foi estimada pelo LIPE? (Lignina Isolada, Purificada e Enriquecida) na forma l?quida, fornecido no 30? dia de ensaio, em dose ?nica, e as amostras fecais foram coletadas nos tempos 0, 2, 4, 8, 12, 16, 20, 24, 30, 36, 42, 48, 54, 60, 66, 72 e 78 horas ap?s o fornecimento. As caracter?sticas fecais foram avaliadas no 33? e 34? dia e, as coletas das amostras sang??neas no in?cio e 34? dia do ensaio. Os resultados foram submetidos ? an?lise de vari?ncia e as m?dias comparadas pelo teste Student Newman-Keuls, com n?vel de signific?ncia de 5%. No segundo ensaio foram utilizados doze eq?inos em delineamento experimental inteiramente casualizado com duas dietas e seis repeti??es. As dietas utilizadas foram: dieta sem inclus?o de ?leo de soja (controle); dieta com inclus?o de 10% de ?leo de soja. O ensaio teve a dura??o de 82 dias, com a realiza??o de tr?s testes de esfor?o f?sico ao in?cio, 60? e 82? dia. Nesses testes foram avaliadas freq??ncia card?aca e temperatura corporal e coletadas amostras de sangue para an?lises hematol?gicas e bioqu?micas. A primeira coleta de dados ocorreu antes do teste, com os eq?inos em repouso e, imediatamente, 10, 20 e 120 minutos ap?s o t?rmino dos testes de esfor?o f?sico. Os valores m?dios dos par?metros fisiol?gicos, hematol?gicos e bioqu?micos foram submetidos ? an?lise n?o param?trica, a 5% de signific?ncia. Houve redu??o significativa no consumo de mat?ria seca das dietas com a inclus?o de ?leo de soja. O coeficiente de digestibilidade aparente do extrato et?reo aumentou (P<0,05) nas dietas hiperlipid?micas e o coeficiente de digestibilidade da celulose reduziu com a inclus?o de 19,5% de ?leo de soja. A digestibilidade dos demais nutrientes, exceto da prote?na bruta, a cin?tica da digesta no trato gastrointestinal e as caracter?sticas fecais n?o foram alteradas (P>0,05) pela inclus?o de ?leo nas dietas. Os eq?inos consumindo as dietas hiperlipid?micas apresentaram aumento (P<0,05) nos n?veis sang??neos de eritr?citos, hemoglobina e triglicer?dios e redu??o no volume corpuscular m?dio. N?o houve altera??o nos par?metros fisiol?gicos, hematol?gicos e bioqu?micos dos eq?inos alimentados com a dieta hiperlipid?mica ao longo do tempo de consumo das dietas e em fun??o dos testes de esfor?o f?sico. As dietas mostraram-se palat?veis e seguras, sem ocorr?ncia de casos de c?licas ou diarr?ias. O ?leo de soja pode ser utilizado nas dietas de eq?inos atletas visando suprir a demanda energ?tica e reduzir o consumo de mat?ria seca, desej?vel em eq?inos da modalidade esportiva Concurso Completo de Equita??o.

Made available in DSpace on 2016-04-28T20:12:52Z (GMT). No. of bitstreams: 1 2007-Edson Pinto Ferreira Filho.pdf: 376274 bytes, checksum: ef7c3bc5465f0dd82db12501d911381c (MD5) Previous issue date: 2007-09-21 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior / Ce travail pr?tend servir de base pour une discussion centr?e sur le r?le symbolique des discours sur l avantage comparatif institutionnel cons?quent des qualifications dynamiques [interactions technologiques et de la capacit? d'innovation, dans les alliances strat?giques] ?tablies par Petrobras. Pour cela, le point de d?part est constitu? par l hypoth?se que l'environnement des entreprises a connu d extraordinaires changements dans ces derni?res d?cennies, qui se sont refl?t?s principalement dans les relations ?conomiques et dans la strat?gie des entreprises et des pays. Dans ce contexte, les qualifications dynamiques [comp?tences distinctives] deviennent des caract?ristiques capables de diff?rencier positivement la soci?t? du concurrent et de permettre une hausse de sa performance, dans un monde marqu? par des taux ?lev?s de la comp?titivit?. Des consid?rations faites concernant l'?conomie institutionnelle, la vision bas?e sur des ressources, les interactions technologiques, la capacit? d'innovation, la propri?t? intellectuelle, ainsi que de la comp?titivit? des organisations, leurs concepts, mesures, facteurs d?terminants du succ?s concurrentiel, et des alliances strat?giques et des r?seaux, montrent l'importance du sujet pour le milieu de l'entreprise, acad?mique et de la soci?t? dans son ensemble. Parall?lement, la recherche bibliographique est renforc?e par l'illustration de la Petrobras, comme ?tude du cas et l?application de la th?orie soulev?e, en permettant d'ins?rer que, sp?cifiquement, sur la question des qualifications dynamiques [comp?tences distinctives d'innovation, la technologie et les alliances strat?giques], les avantages comparatifs qui garantiront l'avenir des entreprises sont conquis ? partir du savoir combiner et mobiliser [il implique la question d'apprentissage] un ensemble de ressources pertinentes pour r?aliser, dans un contexte particulier, des activit?s professionnelles afin de produire des r?sultats, en satisfaisant certains crit?res de performance concurrentielle. / O presente trabalho pretende servir como base para uma discuss?o acerca de como as capacita??es din?micas [intera??es tecnol?gicas e a capacidade de inova??o, no ambiente das alian?as estrat?gicas] estabelecidas pela Petrobras, podem formular vantagem comparativa institucional para a empresa. Para tal, parte-se da premissa de que o ambiente organizacional conheceu nas ?ltimas d?cadas mudan?as extraordin?rias, que se refletiram principalmente nas rela??es econ?micas e na estrat?gia de atua??o das empresas e pa?ses. Neste contexto, as capacita??es din?micas [compet?ncias distintivas] tornam-se caracter?sticas capazes de diferenciar positivamente a empresa do concorrente, num mundo marcado por ?ndices acirrados de competitividade. Considera??es feitas a respeito da economia institucional, da vis?o baseada em recursos, das intera??es tecnol?gicas, da capacidade de inova??o, da propriedade intelectual, assim como da competitividade das organiza??es, seus conceitos, medidas, fatores determinantes do sucesso competitivo, e das alian?as estrat?gicas e redes, mostram a relev?ncia do tema para o meio empresarial, acad?mico e para a sociedade como um todo. Paralelamente, a pesquisa bibliogr?fica ? refor?ada pela ilustra??o da Petrobras, como estudo de caso e aplica??o da teoria levantada, permitindo inserir que, especificamente, sobre a quest?o das capacita??es din?micas [compet?ncias distintivas de inova??o, tecnologia e alian?as estrat?gicas], as vantagens comparativas que ir?o garantir o futuro das firmas s?o conquistadas a partir do saber combinar e mobilizar [envolve a quest?o de aprendizagem] um conjunto de recursos pertinentes para realizar, em um contexto particular, atividades profissionais, a fim de produzir resultados satisfazendo determinados crit?rios de performance competitiva.

Submitted by Leticia Schettini (leticia@ufrrj.br) on 2016-09-21T15:12:59Z No. of bitstreams: 1 2011 - Camila Pinheiro Nobre.pdf: 2714138 bytes, checksum: bc436d879ddfded703d4d5fea9f9943c (MD5) / Made available in DSpace on 2016-09-21T15:12:59Z (GMT). No. of bitstreams: 1 2011 - Camila Pinheiro Nobre.pdf: 2714138 bytes, checksum: bc436d879ddfded703d4d5fea9f9943c (MD5) Previous issue date: 2011-02-17 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior-CAPES / The aim of this study was to observe the germination, production of glomalin and monitor development of species of mycorrhizal fungi (AMF) of the germplasm bank of Embrapa in root organ culture (ROC) of basil and bryophytes in vitro, analyzing their interaction with the hosts and the influence of the culture medium enriched with humic acids on fungal growth and bryophyte Lunularia cruciata. For this, some AMF species were selected and had their glomerospores extracted and subjected to surface disinfection process, placed in water-agar medium and temperature-controlled chamber to germinate. A germination test was conducted for 15 days, and the results were analyzed by ANOVA and Tukey test applied to 5% probability. Species with germinated glomerospores (Gigaspora margarita, Glomus manihots, Scutellospora heterogama and Glomus proliferum) were placed in ROC of purple basil where they had their growth observed until 100 days after inoculation. Also as part of the characterization of AMF species it was quantified the level of glomalin in the samples of multiplication and the results were subjected to analysis of variance and Scott-Knott test at 5% probability. In the second chapter it was investigated the effect of mycorrhizal association in ROC of purple basil, and in the third chapter the influence of different concentrations of humic acid and association with growth of Lunularia cruciata (area and length). The results were submitted to ANOVA and Tukey test at 5% probability. Scutellospora heterogama was the species with higher germination rates of glomerosporos, followed by Gigaspora margarita. The species of Glomus sporulated after formation of symbiosis. The amount of glomalin produced by different AMF was distinct, especially in total glomalin fraction. Different AMF species did not show difference in efficiency to promote development of Ocimum basilicum transformed roots. The growth of basil transformed roots in the MSR was extended from 15 days after inoculation with mycorrhizal fungi. The usage of humic acids in the culture medium in concentrations of 20 and 80 mg CL-1 enhanced growth of bryophyte L. cruciata, and its association with mycorrhizal fungi, as well as promoted the highest number of spores of Gl. proliferum. The association L. cruciata and AMF was characterized as mutualistic, since both had advantages in growth and sporulation. Gigaspora margarita and Glomus proliferum increased growth of Lunularia cruciata. / O objetivo do trabalho foi observar a germina??o e produ??o de glomalina e acompanhar desenvolvimento de esp?cies de fungos micorr?zicos arbusculares (FMA) do banco de germoplasma da Embrapa em ra?zes geneticamente modificadas de manjeric?o e em bri?fitas in vitro. Ainda, avaliar sua intera??o com os hospedeiros e a influ?ncia de meio de cultura enriquecido com ?cidos h?micos no crescimento do fungo e da bri?fita Lunularia cruciata. Para isso algumas esp?cies de FMAs foram selecionadas e tiveram seus glomerosporos extra?dos e submetidos ao processo de desinfesta??o superficial, colocados em meio Agar?gua e c?mara com temperatura controlada para germinar. Realizou-se teste de germina??o por 15 dias e os resultados foram submetidos a an?lise de vari?ncia e aplicado teste de Tukey ? 5% de probabilidade. Esp?cies com glomerosporos germinados (Gigaspora margarita, Glomus manihots, Scutellospora heterogama e Glomus proliferum) foram colocadas em ra?zes modificadas de manjeric?o roxo onde tiveram seu crescimento observado at? 100 dias ap?s a inocula??o. Ainda como parte da caracteriza??o de esp?cies de FMAs foi realizado a quantifica??o dos teores de glomalina nas amostras de multiplica??o sendo os resultados submetidos a an?lise de vari?ncia e aplicado teste de Scott-Knott ? 5% de probabilidade. No segundo cap?tulo foi verificado o efeito da associa??o FMAs em ra?zes modificadas de manjeric?o roxo e no terceiro cap?tulo a influ?ncia da associa??o ?cido h?mico em diferentes concentra??es, bri?fita Lunularia cruciata (?rea e comprimento) e FMAs. Os resultados foram submetidos ? an?lise de vari?ncia e teste de Tukey a 5% de probabilidade. Scutellospora heterogama foi a esp?cie com maiores taxas de germina??o de glomerosporos, seguida da Gigaspora margarita. As esp?cies de Glomus esporularam logo ap?s a forma??o da simbiose. A quantidade de glomalina produzida pelos diferentes FMAs foi distinta, em especial na fra??o glomalina total. As diferentes esp?cies de FMAs n?o apresentaram distin??o na efici?ncia de promover o desenvolvimento das ra?zes transformadas de Ocimum basilicum. O crescimento de ra?zes transformadas de manjeric?o em meio MSR foi ampliado a partir dos 15 dias ap?s a inocula??o de fungos micorr?zicos. O uso de ?cidos h?micos no meio de cultura em concentra??es de 20 e 80 mg C.L-1 incrementou o crescimento da bri?fita Lunularia cruciata e sua associa??o com fungos micorr?zicos arbusculares, assim como promoveram a maior esporula??o de Gl. proliferum. A associa??o Lunularia cruciata e FMAs foi caracterizada como mutualista j? que ambos apresentaram benef?cios em crescimento e esporula??o. Gigaspora margarita e Glomus proliferum promoveram maior crescimento de Lunularia cruciata.

Submitted by Jorge Silva (jorgelmsilva@ufrrj.br) on 2017-02-07T18:57:15Z No. of bitstreams: 1 2016 - Shirlei Almeida Assun??o.pdf: 1407109 bytes, checksum: 346922df83ba0b7c92b59002d73737df (MD5) / Made available in DSpace on 2017-02-07T18:57:15Z (GMT). No. of bitstreams: 1 2016 - Shirlei Almeida Assun??o.pdf: 1407109 bytes, checksum: 346922df83ba0b7c92b59002d73737df (MD5) Previous issue date: 2016-02-22 / CAPES / Faperj / Brazil is the biggest sugarcane producer of the world with cultivated area superior to nine millions hectares. To reach economically viable productivity levels it is necessary to make use of high amounts of N fertilizers. These fertilizers are high cost and they also can contribute to emission of greenhouse gases and pollution of watercourses, as well as, to influence directly on the decomposition of the soil organic matter (SOM). In this context to understand how interactions between nitrogen and SOM occurs in sugarcane fields is important from both economic and environmental points of view. Therefore, the objective of this study was to evaluate quantity and quality of soil carbon when different doses of nitrogen are added in the form of ammonium sulphate in a sugarcane raw agro-ecosystem in an ultisol from Coastal Plains. The experiment was conduced in sugarcane fields renovated in 2009 in area of the company LASA alcohol distillery, in Linhares - ES, in an Ultisol with sandy to medium texture, from Coastal Plain environment. The variety of sugarcane (Saccharum spp.) used was RB918639. There were evaluated five treatments of N ammonium sulphate doses: 0 (control), 80, 100, 120 and 160 kg of N per ha-1 with four repetitions, established under experimental design of randomized blocks. Each experimental unit (plot) was 70 m? (5 lines with 10 m, spaced by 1.4 m between lines). Samples of plant and soil were collected in September 2013 and 2014, corresponding to 4th and 5th harvest. The results indicated that among the N doses evaluated, the doses of 100 and 120 kg were the most efficient on accumulating carbon on the humic fractions, particle size, densimetric and oxidizable carbon fractions. The dose of 160 kg was the less effective to carbon accumulation on the humic fractions, particle size, densimetric and oxidizable carbon fractions. Total nitrogen, natural abundance of 13C and 15N, stem and straw production were not influenced by N rates, with no differences on any of the seasons. About the elemental composition of humic acids (HA), the quantities of chemicals were very similar between doses and coherent with results in the literature for the HA. In the E4/E6 ratio, the dose of 160 kg of N was the one with the lowest E4/E6 ratio. Regarding the infrared with Fourier transformation it was observed the predominance of aliphatic groups, and the analysis of major components enabled the clear separation of the effects from different N doses. In the 13CNMR prevailed larger amounts of aliphatic carbons, it was confirmed with the aliphaticity index of the samples, the results were above 80% for all samples. It was also verified through the 13 CNMR that the control area and the dose of 160 kg had the lowest aromaticity rates. Therefore, it was concluded that different fractionations of organic matter along with spectroscopic techniques were effective on evaluating the influence of different nitrogen doses to the decomposition of SOM. / O Brasil ? o maior produtor mundial de cana-de-a??car, com ?rea plantada que ultrapassa os nove milhoes de hectares. Para obter produtividade economicamente vi?vel da cultura, s?o utilizadas elevadas doses de fertilizantes nitrogenados. Tais fertilizantes possuem elevados custos economicos, podem contribuir para emiss?o de gases do efeito estufa e para polui??o de cursos de ?gua, al?m de infuenciarem de forma direta na decomposi??o da mat?ria org?nica do solo (MOS). Neste contexto, entender como ocorre a intera??o entre o nitrog?nio e a MOS no cultivo da cana ? importante tanto do vista economico quanto ambiental. Assim sendo o objetivo desse estudo foi avaliar a quantidade e qualidade do carbono do solo em fun??o de diferentes doses de nitrog?nio adicionado na forma de sulfato de am?nio no agroecossistema cana-de-a??car crua em Argissolo Amarelo de Tabuleiro Costeiro. O experimento foi instalado em canavial renovado em 2009, em ?rea cedida pela Usina LASA, no munic?pio de Linhares ? ES, em Argissolo Amarelo de textura arenosa/m?dia, no ambiente de Tabuleiros Costeiros. A variedade da cana-de-a??car (Saccharum spp.) utilizada foi a RB918639. Foram avaliados cinco tratamentos/doses de N-sulfato de am?nio quais sejam: 0 (testemunha), 80, 100, 120 e 160 kg ha-1 de N com quatro repeti??es, estabelecidos segundo delineamento experimental de blocos ao acaso. Cada unidade experimental (parcela) tinha 70 m? (5 linhas com 10 m, espa?adas 1,4 m). As amostras de planta e terra foram coletadas no m?s de setembro de 2014, correspondendo ? 4? soca. Os resultados indicaram que as doses de 100 e 120 kg, foram as mais eficientes para acumular o carbono nas fra??es h?micas, granulom?tricas, densim?tricas e nas fra??es do carbono oxid?vel. A dose de 160 kg foi a menos eficiente para acumular o carbono nas fra??es h?micas, granulom?tricas, densim?tricas e nas fra??es do carbono oxid?vel. O nitrog?nio total, a abund?ncia natural de 13C e 15N e a produtividade de colmo e palhada n?o apresentaram diferen?as significativas. Na composi??o elementar dos ?cidos h?micos (AH), as quantidades dos elementos qu?micos foram bem semelhantes entre as doses e coerentes com resultados na literatura para os AH. Para o coeficiente E4/E6 a dose de 160 kg de N foi a que apresentou o menor coeficiente E4/E6. Em rela??o ao infravermelho com transforma??o de Fourier verificou-se o predom?nio de grupamentos alif?ticos, e a analise de componentes principais possibilitou a separa??o clara do efeito das diferentes doses de N. No RMN C prevaleceram maiores quantidades de carbonos alif?ticos, isto foi confirmado com o ?ndice de alif?ticidade das amostras que foram superiores a 80 % para todas as amostras. Verificou-se tamb?m atrav?s do RMN 13C que a testemunha e a dose de 160 kg foram as que apresentaram menores ?ndices de aromaticidade. Portanto, conclui-se que os diferentes fracionamentos bem com as t?cnicas espectrosc?picas foram eficientes para avaliar a influencia das diferentes doses de N na decomposi??o da MOS.

Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior / To meet growing demand for goods and services of modern society there is an increase in industrial activity, is highlighting the versatility of steel for use of its products. Meanwhile, as well as all human activity there is the generation of waste that may contain contaminants, among these heavy metals, which are arranged in an inappropriate manner pose a risk to humans and other living organisms. In soil heavy metals can exist in different chemical forms, presented each of them a degree of availability, and the total content of an indication of soil contamination. The phytoremediation is a technique of bioremediation, which uses the cultivation of plants to remediate contaminated soil and water, either by the extraction (phytoextraction) or stabilization (phytostabilization) of the contaminant in the environment. The objective was to evaluate the effect of the culture of Pennisetum purpurem Schum., the distribution of chemical fractions of zinc and cadmium in the soil, in three of pH values, after contamination with industrial waste containing high levels of these elements, and their possible influence germination and development of the plant. It was conducted in a completely randomized experiment 2x2x3 factorial system, in a sample of Bt horizon of a Argisol Yellow, contaminated and not contaminated with residue from Cia Mercantile and Industrial Ing?, with and without cultivation of Pennisetum purpurem Schum., and receiving the application of three doses of CaCO3. The soil used was collected in the municipality of Pinheiral - RJ, being part of the sample contaminated with waste (66.67 g kg-1) to raise the level pseudo-Zn total of the values above 1500 mg kg-1. The sample was contaminated and not contaminated divided into three groups each received a different dose of CaCO3 (0.00, 0,75; 1,5 mg kg-1). After being incubated for 40 days to 80% of the field capacity, there were planted three Seedpieces of Pennisetum purpurem Schum., genotype Cameroon, in each unit cultivated. At 18 days after planting and germination were evaluated at the average height of the seedlings. At 135 days after planting were collected to shoot and root plants. The substrates were sampled after hatching and at the end of the experiment. In substrates was determined the pH in water and, for the treatments that received waste, the levels of Zn and Cd in the following fractions: soluble (F1), exchangeable (F2), precipitated (F3), absorbed more strongly (F4) and residual (F5). The extractors used to determine the fractions were: deionized water, MgCl2, acetic acid, DTPA and aqua regia. The results showed that the germination and development of Pennisetum purpurem Schum. were limited by the content of Cd and mainly in fractions of Zn more bioavailable (F1, F2). The levels of Zn in the soluble fraction (F1) exceeding 125 mg kg-1, caused a reduction in the germination and the initial development of culture. The cultivation of Pennisetum purpureum Schum. promoted reduction of soil pH of all treatments, and favored the solubility of Zn of contaminated substrates. Leaf contents of Zn greater than 1380 mg kg-1 caused sharp reduction in growth and phytotoxicity symptoms. The Pennisetum purpureum Schum did not show a behavior as plants hyperaccumulative of Zn and Cd, but they showed Zn accumulation and they were efficient in the remediation of Zn and Cd. / Para atender a demanda crescente por bens e servi?os da sociedade moderna houve um incremento da atividade industrial, se destacando a siderurgia pela versatilidade de emprego dos seus produtos. Entretanto, assim como toda atividade humana h? a gera??o de res?duos que podem conter contaminantes, dentre estes os metais pesados, que se dispostos de forma inadequada representam um risco a o homem e outros organismos vivos. Em solos os metais pesados podem existir em diferentes formas qu?micas, apresentando cada uma delas um grau de disponibilidade, sendo o teor total um indicativo de contamina??o do solo. A fitorremedia??o ? uma t?cnica da bioremedia??o, que utiliza o cultivo de plantas para remediar solos e ?guas contaminadas, seja pela extra??o (fitoextra??o) ou estabiliza??o (fitoestabiliza??o) do contaminante no ambiente. O objetivo do trabalho foi avaliar o efeito do cultivo de Pennisetum purpurem Schum., na distribui??o das fra??es qu?micas de zinco e c?dmio no solo, em tr?s valores de pH, ap?s a contamina??o com res?duo industrial contendo altos teores destes elementos, e a sua poss?vel influ?ncia na germina??o e desenvolvimento da planta. Foi conduzido um experimento inteiramente casualizado no sistema fatorial 2x2x3, em amostra de horizonte Bt de um Argissolo Amarelo, contaminado e n?o contaminado, com res?duo da Cia Mercantil e Industrial Ing?, com e sem cultivo de Pennisetum purpurem Schum., e recebendo a aplica??o de tr?s doses de CaCO3. O solo utilizado foi coletado no munic?pio de Pinheiral ? RJ, sendo parte da amostra contaminada com res?duo (66,67 g kg-1), para elevar o teor pseudo-total de Zn a valores superiores a 1500 mg kg-1. A amostra contaminada e n?o contaminada foi dividida em tr?s grupos cada um recebeu uma dose diferente de CaCO3 (0,00; 0,75; 1,5 mg kg-1). Posteriormente sendo incubadas por 40 dias a 80% da capacidade de campo. Ap?s a incuba??o foram plantados tr?s toletes de Pennisetum purpurem Schum., gen?tipo Cameroon, em cada unidade cultivada. Aos 18 dias ap?s o plantio foram avaliadas a germina??o e a altura m?dia das pl?ntulas. Aos 135 dias ap?s o plantio foram coletadas a parte a?rea e raiz das plantas. Os substratos foram amostrados ap?s a incuba??o e no final do experimento. Nestes substratos foi determinado o pH em ?gua e, para os tratamentos que receberam res?duo, os teores de Zn e Cd nas seguintes fra??es: sol?vel (F1), troc?vel (F2), precipitada (F3), adsorvida mais fortemente (F4) e residual (F5). Os extratores utilizados para a determina??o das fra??es foram: ?gua deionizada, MgCl2, ?cido ac?tico, DTPA e ?gua r?gia. Os resultados mostraram que a germina??o e o desenvolvimento de Pennisetum purpurem Schum. foram limitados pelo teor de Cd e principalmente de Zn nas fra??es mais biodispon?veis (F1 e F2). Os teores de Zn na fra??o sol?vel (F1) superiores a 125 mg kg-1, provocaram redu??o na germina??o e no desenvolvimento inicial da cultura. O cultivo de Pennisetum purpureum Schum. promoveu redu??o do pH do solo de todos os tratamentos, tendo favorecido a solubilidade de Zn dos substratos contaminados. Teores foliares de Zn superiores a 1380 mg kg-1 provocaram acentuada redu??o no crescimento e sintomas de fitotoxidez. O Pennisetum purpureum Schum. n?o se comportou como hiperacumulador de Zn e Cd, mas apresentou acumula??o de Zn e efici?ncia na remedia??o de Zn e Cd.

Submitted by Jorge Silva (jorgelmsilva@ufrrj.br) on 2018-11-21T16:44:58Z No. of bitstreams: 1 2013 - Beatriz Autullo Ramos.pdf: 1610426 bytes, checksum: c3defc33414fda5b010152756fc0f0ce (MD5) / Made available in DSpace on 2018-11-21T16:45:00Z (GMT). No. of bitstreams: 1 2013 - Beatriz Autullo Ramos.pdf: 1610426 bytes, checksum: c3defc33414fda5b010152756fc0f0ce (MD5) Previous issue date: 2013-08-29 / CAPES / FAPERJ / The aim of this study was to obtain the sorption isotherms, analyze the kinetics of drying jatropha seeds, perform mathematical modeling of sorption isotherms and kinetic experiments, and to study the thermodynamics of the process. Seeds with initial moisture content of 8-10%, dry basis, were used. The sorption isotherms were found using two experimental devices: a water activity meter and a thermal bath with temperatures adjusted at 30, 40 and 50 ?C for the first apparatus and 40, 50 and 60 ?C for the second one. To obtain the sorption isotherms with a thermal bath the method of saturated saline solutions of MgCl2, K2CO3, KI, NaCl, and NaBrO3 was applied and the time to reach equilibrium was, generally, 20 days. Nine kinetic experiments were performed setting temperatures at 30, 40 and 50 ?C, and the superficial gas velocity at 397, 794 and 1190 cm/min, with duration of three hundred and sixty minutes. Oswin's mathematical model was the best to describe the hygroscopic behavior of the isotherms found with the water activity meter, while Caurie's model was the best for the thermal bath data, because they showed the lowest deviations and the highest coefficients of determination. ANOVA indicated that only the water activity has significant influence over the equilibrium moisture on the sorption isotherm experiments, in both equipments. Nine mathematical models were tested to simulate the kinetics and the ?two exponential terms? model presented the lowest deviations and highest coefficients of determination. It was observed that the temperature and superficial gas velocity did not significantly influence the kinetic experiments. For calculation of the thermodynamic properties the models that best fitted the data of the two experiments to obtain the sorption isotherms were used. The positive values of the differential enthalpy and entropy for both studies showed that the sorption process of jatropha seeds is endothermic and irreversible. The negative values of the Gibbs free energy variation for both studies indicated that the sorption process occurs spontaneously for the temperature conditions evaluated. The enthalpy-entropy compensation theory was applied satisfactorily and Krug?s test showed that the isokinetic temperature was different from the harmonic mean temperature in both studies. / O objetivo deste trabalho foi obter as isotermas de sor??o, analisar a cin?tica de secagem da semente do pinh?o-manso, realizar a modelagem matem?tica dos experimentos da isoterma de equil?brio e de cin?tica, e o estudo termodin?mico do processo. Utilizaram-se sementes com teor de umidade inicial de 8 a 10 %, em base seca. Os experimentos de determina??o da isoterma de equil?brio foram realizados utilizando dois equipamentos: o medidor de atividade de ?gua e o banho t?rmico, com faixas de temperatura de 30, 40 e 50 ?C, para o primeiro, e de 40, 50 e 60 ?C, para o segundo. As isotermas obtidas pelo banho t?rmico foram obtidas atrav?s do m?todo das solu??es salinas saturadas de MgCl2, K2CO3, KI, NaCl e NaBrO3 e o tempo para atingir o equil?brio foi, em geral, de 20 dias. Foram realizados nove experimentos de cin?tica, nas temperaturas de 30, 40 e 50 ?C, com velocidade superficial do g?s de 397, 794 e 1190 cm/min, com dura??o de trezentos e sessenta minutos. O melhor modelo matem?tico selecionado para descrever o comportamento higrosc?pico das isotermas foi o Oswin, para o medidor de atividade de ?gua, e o de Caurie, para o banho t?rmico, pois apresentaram os menores desvios e os maiores coeficientes de determina??o. Atrav?s da ANOVA verificou-se que somente a atividade de ?gua apresentou influencia significativa sobre a umidade de equil?brio para os experimentos de isoterma, em ambos os equipamentos. Nove modelos matem?ticos foram testados para a simula??o da cin?tica sendo que o modelo de ?Dois termos exponenciais? apresentou os menores desvios e os maiores coeficientes de determina??o. Observou-se que a temperatura e a velocidade superficial do g?s n?o influenciaram significativamente os experimentos de cin?tica. Para os c?lculos das propriedades termodin?micas foram utilizados os modelos que melhor ajustaram os dados dos dois experimentos para obten??o das isotermas de sor??o. Os valores positivos de entalpia e entropia diferencial, para ambos os estudos, mostraram que o processo de sor??o de ?gua nos gr?os de pinh?o-manso ? endot?rmico e irrevers?vel. Os valores negativos da varia??o da energia livre de Gibbs, para os dois estudos, indicaram que o processo de sor??o ocorre de forma espont?nea para as condi??es de temperatura avaliadas. A teoria compensat?ria entalpia-entropia foi aplicada de forma satisfat?ria, e o teste de Krug mostrou que a temperatura isocin?tica foi diferente da temperatura m?dia harm?nica nos dois estudos realizados.