691 resultados para Conexão
Resumo:
Ao explicar qual é o papel das finanças na transição para o desenvolvimento sustentável, Annelise Vendramini, coordenadora de do programa de Finanças Sustentáveis do FGVces, mostra a conexão entre a economia real e o setor financeiro
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Este estudo buscou analisar o efeito das conexões políticas das empresas no nível do Conselho de Administração sobre o desempenho, após o processo de aquisição. Estudos anteriores já identificaram esta relação apontando efeitos, de positivos a neutros das conexões políticas sobre o desempenho, além de influenciar a frequência e o tamanho das operações (BROCKMAN; RUI; ZOU, 2013; LIU; WANG; ZHANG, 2013). Esta pesquisa estende tais análises aplicando o modelo para as empresas brasileiras além de incluir informações sobre o tipo de conexão política para avaliar diferentes impactos. Este estudo foi conduzido dentro do âmbito das empresas compradoras listadas na BM&Bovespa entre os anos de 1999 e 2014, utilizando modelos econométricos de Propensity Score Matching e dados em painel. Partindo da análise de currículos dos conselheiros, foram codificados os diferentes tipos de conexão, como instituições financeiras públicas e de desenvolvimento e agências reguladoras além das formas tradicionais de conexões políticas (FACCIO, 2006). Com base nos resultados foi encontrada uma associação entre as conexões com agências reguladoras e o desempenho pós-aquisição das empresas adquirentes, bem como indícios de uma relação entre os efeitos das conexões com bancos públicos e de desenvolvimento. Não foi possível apontar resultados para as conexões políticas tradicionais
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As práticas da gestão de recursos humanos acompanham a evolução na gestão do capital humano das organizações. As atividades de marketing voltadas à marca corporativa prestam serviço essencial e estratégico na identificação, formatação e divulgação da marca do empregador. Juntas as duas áreas passam a desempenhar papel solidário na atração de profissionais qualificados, reforçando e propagando a identidade corporativa aos potenciais candidatos através da EVP. A EVP, a Marca do Empregador e a Reputação do Empregador se relacionam através das práticas de recrutamento e seleção, que é área de RH que primeiro mantem contato com os potenciais candidatos e inicia a construção do contrato psicológico com o novo empregado. A marca do empregador, como a imagem da organização, é utilizada para atrair, reter e engajar as pessoas e tem a EVP como seu núcleo central. Neste estudo se identifica a prática de recrutamento e seleção como a principal conexão teórica entre a EVP, a marca do empregador e a reputação do empregador e se identifica que oportunidade como a dimensão da EVP mais relevantes para o público estudado.
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A Escola e o Ensino, através da evolução dos diferentes sistemas que os caracterizaram ao longo dos tempos, tiveram e têm por objectivo não só a transmissão de conhecimentos mas também a preparação dos cidadãos mais jovens para a sua integração na vida social da sua comunidade. A escola atravessa momentos difíceis e os papéis dos intervenientes são questionados diariamente. Tal tem dado origem a alterações e a mudanças na concepção organizacional, de estratégia e de objectivos da escola e do próprio ensino. A profissão docente deixou de ser uma mera transmissão de saber, exigindo-se muito mais ao professor. O seu papel inclui já novas questões, tais como, como ensinar?, como fazer aprender? e como motivar os outros para que queiram aprender? A evolução tecnológica e a sua integração no ensino têm sido das principais fontes para a alteração operada sobre a escola e o seu objectivo. O desenvolvimento das tecnologias de informação e de comunicação (TIC) têm vindo a proporcionar novas formas de comunicar e de transmitir informação. A habilitação profissional para a docência no ensino básico e secundário implica a Prática de Ensino Supervisionado. Para além das planificações e da implementação das metodologias adoptadas visando o processo de ensino-aprendizagem da Matemática ao nível do 10º ano de escolaridade, desenvolvemos um projecto de cariz qualitativo cujo objectivo seria a análise da aplicabilidade da robótica, na sala de aula, enquanto elemento mediador e potenciador do processo de aprendizagem no tema das funções. A revisão bibliográfica demonstra que a robótica tem merecido elogios enquanto factor motivador e elemento que faculta uma conexão entre diversas representações, nomeadamente, os conceitos teóricos e a praticabilidade. O desenvolvimento de diversas actividades com duas turmas do 10º ano de escolaridade, utilizando robots LEGO Minstorms, revelou que a robótica não só é um elemento mediador do processo ensino-aprendizagem mas também, e sobretudo, é um catalisador da motivação, cooperação e envolvência dos alunos, levando-os, numa perspectiva construcionista, a construir conhecimento e a concretizar o simbolismo abstracto presente na Matemática.
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O principal objetivo desta dissertação é descobrir a presença da ortonímia e da heteronímia do escritor português Fernando Pessoa na obra Boa noite, senhor Soares, de Mário Cláudio, bem como a relação com as personagens e suas experiências, contextualizadas em interação histórico-ficcional. Na sequência desta investigação, ficamos também a conhecer um pouco mais sobre a biobibliografia e a escrita de Mário Cláudio, autor que tem por hábito criar alguns dos seus textos em torno da vida de figuras históricas ou artísticas. Tentamos, ainda, entender quais são as características da sua escrita e perceber em que contexto literário e epocal se insere, antes de partirmos para a exploração da novela Boa noite, senhor Soares. De igual modo, com este trabalho pretendemos ajudar a reavivar a memória e a prolongar o legado de Fernando Pessoa. Nesse âmbito, com o intuito de ter uma melhor compreensão global da obra em estudo, será também importante referir o que aproxima os dois autores, isto é, a intertextualidade existente na narrativa em análise, processo que confere originalidade à criação do autor e que resulta num enriquecimento da história da literatura portuguesa. Como tal, numa fase posterior, a nossa atenção irá recair tanto em Fernando Pessoa ortónimo como em alguns dos seus heterónimos, embora tendo sempre por base o grau de relevância que lhes é conferido em Boa noite, senhor Soares, para que seja possível apresentar algumas conclusões em relação a esta investigação. Assim, para além de tentar identificar na novela as presenças de Alberto Caeiro, Álvaro de Campos e Ricardo Reis, procuramos dar resposta à possível conexão existente entre Bernardo Soares, semi-heterónimo de Fernando Pessoa, e o senhor Soares, personagem de relevo na narrativa e objeto de atenção por parte do jovem António da Silva Felício, narrador-personagem que, através do seu olhar atento e curioso, nos dá a conhecer as vivências e as características daquele indivíduo para ele tão enigmático.
Resumo:
PEDROSA, Diogo P. F. ; MEDEIROS, Adelardo A. D. ; ALSINA, Pablo J. . Uma Proposta de SLAM com Determinação de Informações Geométricas do Ambiente. In: CONGRESSO BRASILEIRO DE AUTOMÁTICA, 16, Salvador, BA, 2006. Anais... Salvador: CBA, 2006. v. 1. p. 1704-1709
Resumo:
VANTI, Nadia. Links hipertextuais na comunicação científica: análise webométrica dos sítios acadêmicos latino-americanos em Ciências Sociais. Porto Alegre, 2007. 292 f. Tese (Doutorado em Comunicação e Informação) – Universidade Federal do Rio Grande do Sul. Porto Alegre, 2007.
Resumo:
MEDEIROS, Adelardo A. D. et al. SISAL - Um Sistema Supervisório para Elevação Artificial de Petróleo. In: Rio Oil and Gas Expo Conference, 2006, Rio de Janeiro, RJ. Anais... Rio de Janeiro, 2006.
Resumo:
Guaraíras lagoon, located in Tibau do Sul in the eastern littoral of Rio Grande do Norte (Brazil), presents a permanent connection to the sea, which guarantees the occurrence of a rich biodiversity, which includes the autochthonous shrimp species Litopenaeus schmitti, Farfantepenaeus subtilis and Farfantepenaeus brasiliensis. In spite of being subject to a strong human intervention in the last decade, mainly related to the installation of shrimp (Litopenaeus vannamei) farms, the lagoon is still scarcely studied. The present study aims at characterizing the populations of the three autochthonous penaeid shrimp species inhabiting Guaraíras, taking into consideration their abundance and seasonal distribution in the inflow channel of Primar System of Organic Aquaculture (Tibau do Sul, Rio Grande do Norte, Brazil). Twelve monthly samples were carried out from May 2005 to April 2006 with the aid of a circular cast net in the inflow channel, which is daily supplied with water from Guaraíras. Sampling months were grouped in trimesters according to the total pluviosity, thus comprising four trimesters. Water salinity was monitored twice a week and temperature values registered on a daily basis at noon, during the study period. The daily pluviosity data from the municipality of Tibau do Sul were supplied by Empresa de Pesquisa Agropecuária do Rio Grande do Norte (EMPARN). Collected shrimp were identified, weighted, measured and sexed. L. schmitti specimens (0.2 g to 17.8 g) were distributed in 1.3 g weight classes intervals. From the eighth sampling month (December 2005) onwards, males were classified into three categories, in accordance with the development of their petasm: (a) rudimentary petasm, (b) partially formed petasm, and (c) completely formed petasm. Among the ecological variables, rainfall showed the greatest dispersion (s.d.=187.74Rainfall and abundance of L. schmitti were negatively correlated (r = -0.85) whereas its abundance and water salinity were positively correlated (r = 0.63). Among 1,144 collected individuals, 1,127 were L. schmitti, 13 were F. subtilis and 4 were F. brasiliensis, which corresponded to 98.51%, 1.14% and 0.35% of the total of collected individuals. L. schmitti occurred in 100 % of all samples. Differently, the presence of F. subtilis and F. brasiliensis was restricted to 33% and 17% of the collected samples, respectively. The present study confirmed the occurrence of L. schmitti, F. brasiliensis and F. subtilis in Guaraíras. However, this lagoon seems to be primarily inhabited by juvenile Litopenaeus schmitti. The population of L. schmitti analysed showed a seasonal pattern of distribution. In general, in the months of high salinity and absence of rain, the number of individuals was higher than in the wet months. Further studies on the reproductive biology and ecology of L. schmitti, F. brasiliensis and F. subtilis may elucidate questions referring to the abundance, period, and phase of occurrence of these shrimp genera in Guaraíras. Finally, the risks associated to the establishment of L. vannamei in the lagoon provide a novel outlet for studies in this biotope
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The present work was carried out at the Atol das Rocas (3º 51 S; 33º 49 W), the only atoll of the South Atlantic and the first Brazilian marine protected area. It was guided by the following hypothesis: the composition of the fish communities varies in agreement with the position of the pools; in other words, with or without permanent ocean connection. To test the validity of this hypothesis, the fish abundance was estimated in the connected pools (Barretinha/Barreta Falsa) and unconnected ones (Cemiteriozinho/Âncoras), carrying an ecological characterization of the fishes that inhabit these pools. Additionally, the structural complexity of the sampled places was also evaluated intending to verify the variations of the abundance and diversity of fishes in function to this factor. By the fact of this research was being carried out through the limits of a conservation unit, the samples was realized using visual census techniques. The results generated through uni and multivariate analytic techniques allowed the evidence that decisive factor in the density, richness and diversity variations of fishes are linked to the substratum type (Hard / Soft bottom) and not by the fact that the pool are or are not connected permanently to the ocean. In relation to the structural complexity; 58% of the variations in the diversity of fishes were attributed to changes in the structural complexity, while 12% of the variations in the abundance were attributed to the structural complexity
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In this study, a BCR-ABL expressing human chronic myelogenous leukaemia cell line (K562) was used to investigate the antitumoral potential of a novel lectin (CvL) purified from the marine sponge Cliona varians. CvL inhibited the growth of K562 cells with an IC50 value of 70 g/ml, but was ineffective to normal human peripheral blood lymphocytes in the same range of concentrations tested (180 g/ml). Cell death occurred after 72 h of exposure to the lectin and with sign of apoptosis as analysed by DAPI staining. Investigation of the possible effectors of this process showed that cell death occurred in the presence of Bcl-2 and Bax expression, and involved a caspase-independent pathway. Confocal fluorescence microscopy indicated a major role for the lysosomal protease cathepsin B in mediating cell death. Accordingly, pre-incubation of K562 cells with the cathepsin inhibitor L-trans-epoxysuccinyl-L-leucylamido-(4-guanidino)butane (E-64) abolished the cytotoxic effect of CvL. Furthermore, we found upregulation of tumor necrosis factor receptor 1 (TNFR1) and down-modulation of p65 subunit of nuclear factor kappa B (NFB) expression in CvL-treated cells. These effects were accompanied by increased levels of p21 and downmodulation of pRb, suggesting that CvL is capable of cell cycle arrest. Collectively, these findings suggest that cathepsin B acts as death mediator in CvL-induced cytotoxicity possibly in a still uncharacterized connection with the membrane death receptor pathway
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Nowadays, most of the hydrocarbon reserves in the world are in the form of heavy oil, ultra - heavy or bitumen. For the extraction and production of this resource is required to implement new technologies. One of the promising processes for the recovery of this oil is the Expanding Solvent Steam Assisted Gravity Drainage (ES-SAGD) which uses two parallel horizontal wells, where the injection well is situated vertically above the production well. The completion of the process occurs upon injection of a hydrocarbon additive at low concentration in conjunction with steam. The steam adds heat to reduce the viscosity of the oil and solvent aids in reducing the interfacial tension between oil/ solvent. The main force acting in this process is the gravitational and the heat transfer takes place by conduction, convection and latent heat of steam. In this study was used the discretized wellbore model, where the well is discretized in the same way that the reservoir and each section of the well treated as a block of grid, with interblock connection with the reservoir. This study aims to analyze the influence of the pressure drop and heat along the injection well in the ES-SAGD process. The model used for the study is a homogeneous reservoir, semi synthetic with characteristics of the Brazilian Northeast and numerical simulations were performed using the STARS thermal simulator from CMG (Computer Modelling Group). The operational parameters analyzed were: percentage of solvent injected, the flow of steam injection, vertical distance between the wells and steam quality. All of them were significant in oil recovery factor positively influencing this. The results showed that, for all cases analyzed, the model considers the pressure drop has cumulative production of oil below its respective model that disregards such loss. This difference is more pronounced the lower the value of the flow of steam injection
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In this dissertation, the theoretical principles governing the molecular modeling were applied for electronic characterization of oligopeptide α3 and its variants (5Q, 7Q)-α3, as well as in the quantum description of the interaction of the aminoglycoside hygromycin B and the 30S subunit of bacterial ribosome. In the first study, the linear and neutral dipeptides which make up the mentioned oligopeptides were modeled and then optimized for a structure of lower potential energy and appropriate dihedral angles. In this case, three subsequent geometric optimization processes, based on classical Newtonian theory, the semi-empirical and density functional theory (DFT), explore the energy landscape of each dipeptide during the search of ideal minimum energy structures. Finally, great conformers were described about its electrostatic potential, ionization energy (amino acids), and frontier molecular orbitals and hopping term. From the hopping terms described in this study, it was possible in subsequent studies to characterize the charge transport propertie of these peptides models. It envisioned a new biosensor technology capable of diagnosing amyloid diseases, related to an accumulation of misshapen proteins, based on the conductivity displayed by proteins of the patient. In a second step of this dissertation, a study carried out by quantum molecular modeling of the interaction energy of an antibiotic ribosomal aminoglicosídico on your receiver. It is known that the hygromycin B (hygB) is an aminoglycoside antibiotic that affects ribosomal translocation by direct interaction with the small subunit of the bacterial ribosome (30S), specifically with nucleotides in helix 44 of the 16S ribosomal RNA (16S rRNA). Due to strong electrostatic character of this connection, it was proposed an energetic investigation of the binding mechanism of this complex using different values of dielectric constants (ε = 0, 4, 10, 20 and 40), which have been widely used to study the electrostatic properties of biomolecules. For this, increasing radii centered on the hygB centroid were measured from the 30S-hygB crystal structure (1HNZ.pdb), and only the individual interaction energy of each enclosed nucleotide was determined for quantum calculations using molecular fractionation with conjugate caps (MFCC) strategy. It was noticed that the dielectric constants underestimated the energies of individual interactions, allowing the convergence state is achieved quickly. But only for ε = 40, the total binding energy of drug-receptor interaction is stabilized at r = 18A, which provided an appropriate binding pocket because it encompassed the main residues that interact more strongly with the hygB - C1403, C1404, G1405, A1493, G1494, U1495, U1498 and C1496. Thus, the dielectric constant ≈ 40 is ideal for the treatment of systems with many electrical charges. By comparing the individual binding energies of 16S rRNA nucleotides with the experimental tests that determine the minimum inhibitory concentration (MIC) of hygB, it is believed that those residues with high binding values generated bacterial resistance to the drug when mutated. With the same reasoning, since those with low interaction energy do not influence effectively the affinity of the hygB in its binding site, there is no loss of effectiveness if they were replaced.
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The central objective of this thesis is studying the changes in the industrial sector of Campina Grande-PB, in the years 1990, about the size of that space and urban sector. The hypothesis that guides this work is that there was a reconfiguration and industrial space in recent years, the result of the restructuring of productive capital and, secondarily, public policies - economic, urban etc. - implemented in the municipality in the years 1990. This reconfiguration industrial meant thepredominance of certain productive segments of the industry and the shift towards urban-industrial areas (industrial districts). This work is guided in these two axes to explain the changes in the industrial campinense and its consequent impact on the urban development of Campina Grande. It is understood by reconfiguration industrial changes in industrial structure, namely the preponderance of one or more productive segments on the other, changing the scenario of production, employment and the number of establishments. In this study, are considered as institutional structures of support and assistance to industry, the various institutions that directly and indirectly, contribute to the development of productive activity. These structures are the first to undergo institutional changes, physical and policies because of intrinsic connection with the industry. The institutional structures contribute to the development of industrial activity and urban development. In Campina Grande, these institutions are important for facilitating the development of certain segments. In this work, sought to identify the current configuration industrial campinense, explaining how the restructuring of production transformed the industry, modifying the urban space in Campina Grande - PB, to direct itself to specific urban areas, from the early 1990