Aglomeración industrial de petróleo y gas en la región productora de la Bacía de Campos: sistema de conocimiento, cambios tecnológicos e innovación

O objetivo central neste trabalho é investigar a aglomeração industrial de petróleo e gás da região produtora da Bacia de Campos (Rio de Janeiro) e a possibilidade dessa concentração geográfica de firmas, independentemente de suas diversas nomenclaturas (cluster, milieu, rede, distrito industrial, arranjo, sistema local, entre outras), consistir em fator que contribui para as atividades inovadoras das empresas ali situadas. Os fundamentos da pesquisa aqui relatada baseiam-se em duas vertentes distintas, uma teórica e outra empírica. A vertente teórica consiste em um modelo analítico híbrido que combina elementos das abordagens de clusters e de sistemas de inovação. A vertente empírica está baseada em dez estudos de caso em firmas localizadas na aglomeração, cujos bens e serviços são de alta complexidade tecnológica, e que atuam em áreas de intenso dinamismo tecnológico. As contribuições deste trabalho estão centradas na caracterização da aglomeração industrial, sob o prisma da complexidade e do dinamismo tecnológico, na elaboração do modelo híbrido teórico e nos resultados do estudo empírico que apontam para a existência de grupos nos quais a aglomeração industrial exerce papel fundamental para as atividades inovadoras das firmas.El objetivo principal de este trabajo es investigar la aglomeración industrial de petróleo y gas en la región productora de la Bacía de Campos (Río de Janeiro) y la posibilidad de que dicha concentración geográfica de empresas, independientemente de sus nombres asociados (cluster, entornos, red, conglomerado industrial, sistemas locales, entre otros), consista en un factor que contribuye para las actividades innovadoras de las empresas allí ubicadas. Los fundamentos de esta investigación se basan en dos enfoques distintos: uno teórico y otro empírico. El enfoque teórico consiste en un modelo analítico híbrido que combina elementos de clusters y de sistemas de innovación. El enfoque empírico se basa en diez estudios de caso en empresas localizadas en la aglomeración, cuyos bienes y servicios son de alta complejidad tecnológica, y que actúan en áreas de intenso dinamismo tecnológico. Las contribuciones de este trabajo se enfocan en la caracterización de la aglomeración industrial, bajo el prisma de la complejidad y del dinamismo tecnológico, en el desarrollo de un modelo híbrido teórico y en los resultados del estudio empírico que señalan la existencia de grupos de empresas para los cuales la aglomeración industrial desempeña un papel fundamental en las actividades innovadoras.The main objective of this paper is to investigate the oil and gas industrial agglomeration in the Campos Basin production region verifying the possibility of this geographical cluster of firms, independent of its nomenclatures (cluster, milieu, network, industrial district, arrangement, local systems, and others), to consist in a feature that contributes to the innovative activities of the firms localized there. The fundaments of this research are based on two different paths: a theoretical and an empirical one. The theoretical path consists of a hybrid analytical model combining elements from the cluster and innovation systems approach. The empirical path is based on ten case studies with firms localized in the agglomeration, supplying goods and services which are technologically complex, and acting in areas with intense technological dynamism. The main contributions of this work are centred on the industrial agglomeration characterization, under the technological complexity and dynamism features, and on the results of the empirical study showing evidences for the existence of some groups of firms where the industrial agglomeration plays a fundamental role for their innovative activities

A multibiomarker approach in the caged neotropical fish to assess the environment health in a river of central Brazilian Cerrado

Embargo until 19 August 2022.Water safety is a world-wide concern and several efforts have been made in order to ensure the conservation of aquatic ecosystems. Water quality monitoring must be performed with an integrated approach using biomonitor organisms allied to water parameters. Nonetheless, very few studies have focused on biomarker responses in neotropical fish, especially in the freshwater ecosystem of Brazilian Cerrado savanna. In present study, the active biomonitoring of the João Leite river (central Brazilian Cerrado river) was performed through the evaluation of biomarker responses in caged Astyanax lacustris in combination with land use classification and analysis of water parameters. Caged fish were exposed for seven days at four sites along the river and two control groups were kept in a tank under controlled conditions. Results showed that pasture was the predominant land use in the João Leite river basin (54.07%), followed by natural vegetation (34.92%) and other kind of land use (11.01%). Water analyses showed metal concentrations (Mn and Fe) above the maximum allowed by Brazilian regulation, with particularly higher concentrations at Site 2 (near to pasture area). Biomarker responses did not show significant differences for somatic and mutagenic biomarkers between sites. However, the comet assay showed high DNA damage at Sites 2 and 3, indicating genotoxic effects in caged fish at pasture areas. Histopathological analysis showed highest frequency of leukocyte infiltration in liver of fish from Site 2, confirming the ecotoxic effects on A. lacustris in streams impacted by grazing activities. DNA damage and leukocyte infiltration in fish hepatic tissues were sensitive biomarkers in the neotropical fish A. lacustris to assess the environment health of the Cerrado river. These results showed the importance of using a multibiomarker approach in environmental risk assessment, especially in areas more at risk from anthropogenic pollution.acceptedVersio

TENDÊNCIAS DA SÍNTESE DA ZEÓLITA MORDENITA COM O USO DE SEMENTES DE CRISTALIZAÇÃO

Devido a sua alta estabilidade térmica e acidez, a zeólita mordenita é utilizada como adsorvente na separação de gases ou misturas líquidas, e como catalisador nos processos de hidrocraqueamento, hidroisomerização, alquilação, reforma catalítica, desparafinação e síntese de dimetilaminas. A busca por novas propriedades das zeólitas conhecidas, a redução do tempo de cristalização e dos custos dos reagentes, torna o processo de síntese uma etapa crucial para sua viabilidade comercial. Este trabalho teve como finalidade destacar a importância do desenvolvimento de rotas para obtenção da mordenita, visto seu potencial de aplicação na indústria petroquímica. Para tanto, se desenvolveu uma fundamentação teórica a partir de patentes e artigos acessíveis nas bases de dados do INPI, Espacenet, WIPO, USPTO e Periódicos Capes. Como resultados destas análises foram estabelecidas as tendências para obtenção da zeólita mordenita

SOCIEDADE, CULTURA E SAÚDE: MOTIVAÇÃO NA UTILIZAÇÃO DE ESPAÇO PÚBLICO DE LAZER

The aim of this research was the identification and analysis of motivational factors that influence social actors to use public places of leisure. It is a descriptive field research with qualitative approach, performed with 80 regulars of Parque da Jaqueira and Calçadão de Boa Viagem in Recife-PE. The data was analyzed using qualitative content analysis. The results indicate that the motivational factors to attend the public places of leisure are related to the pursuit of healthy habits and social interaction. Therefore, they provide quality of life, satisfaction and welfare to the regulars.El propósito fue identificar y analizar los factores motivacionales que influyen en los actores sociales para el uso de los espacios públicos de ocio. Se trata de un campo de carácter descriptivo con enfoque cualitativo, realizado con 80 personas en Parque da Jaqueira y Calçadão de Boa Viagem, Recife-PE. La evaluación de los datos fue a través de análisis de contenido. Los resultados indican los factores de motivación para asistir los espacios públicos de ocio relacionadas con la consecución de hábitos saludables y la interacción social. Por lo tanto, los usuarios pueden dar su calidad de vida, satisfacción y bienestar.O objetivo dessa pesquisa foi identificar e analisar os fatores motivacionais que influenciam os atores sociais a utilizarem os espaços públicos de lazer. Trata-se de uma pesquisa descritiva de campo, com abordagem qualitativa, realizada com 80 frequentadores do Parque da Jaqueira e Calçadão de Boa Viagem, da cidade de Recife-PE. A apreciação dos dados se deu através da análise de conteúdo. Os resultados indicam os fatores motivacionais para se frequentar os espaços públicos de lazer estão relacionados à busca por hábitos saudáveis e à interação social. Portanto podem proporcionar aos seus usuários qualidade de vida, satisfação e bem estar

Multiplicity dependence of jet-like two-particle correlations in p-Pb collisions at sNN\sqrt{s_{NN}} = 5.02 TeV

Two-particle angular correlations between unidentified charged trigger and associated particles are measured by the ALICE detector in p-Pb collisions at a nucleon-nucleon centre-of-mass energy of 5.02 TeV. The transverse-momentum range 0.7 $< p_{\rm{T}, assoc} < p_{\rm{T}, trig} <$ 5.0 GeV/$c$ is examined, to include correlations induced by jets originating from low momen\-tum-transfer scatterings (minijets). The correlations expressed as associated yield per trigger particle are obtained in the pseudorapidity range $|\eta|<0.9$. The near-side long-range pseudorapidity correlations observed in high-multiplicity p-Pb collisions are subtracted from both near-side short-range and away-side correlations in order to remove the non-jet-like components. The yields in the jet-like peaks are found to be invariant with event multiplicity with the exception of events with low multiplicity. This invariance is consistent with the particles being produced via the incoherent fragmentation of multiple parton--parton scatterings, while the yield related to the previously observed ridge structures is not jet-related. The number of uncorrelated sources of particle production is found to increase linearly with multiplicity, suggesting no saturation of the number of multi-parton interactions even in the highest multiplicity p-Pb collisions. Further, the number scales in the intermediate multiplicity region with the number of binary nucleon-nucleon collisions estimated with a Glauber Monte-Carlo simulation.Comment: 23 pages, 6 captioned figures, 1 table, authors from page 17, published version, figures at http://aliceinfo.cern.ch/ArtSubmission/node/161

Anisotropic flow of charged hadrons, pions and (anti-)protons measured at high transverse momentum in Pb-Pb collisions at sNN=2.76\sqrt{s_{\rm NN}}=2.76 TeV

The elliptic, $v_2$, triangular, $v_3$, and quadrangular, $v_4$, azimuthal anisotropic flow coefficients are measured for unidentified charged particles, pions and (anti-)protons in Pb-Pb collisions at $\sqrt{s_{\rm NN}} = 2.76$ TeV with the ALICE detector at the Large Hadron Collider. Results obtained with the event plane and four-particle cumulant methods are reported for the pseudo-rapidity range $|\eta|<0.8$ at different collision centralities and as a function of transverse momentum, $p_{\rm T}$, out to $p_{\rm T}=20$ GeV/$c$. The observed non-zero elliptic and triangular flow depends only weakly on transverse momentum for $p_{\rm T}>8$ GeV/$c$. The small $p_{\rm T}$ dependence of the difference between elliptic flow results obtained from the event plane and four-particle cumulant methods suggests a common origin of flow fluctuations up to $p_{\rm T}=8$ GeV/$c$. The magnitude of the (anti-)proton elliptic and triangular flow is larger than that of pions out to at least $p_{\rm T}=8$ GeV/$c$ indicating that the particle type dependence persists out to high $p_{\rm T}$.Comment: 16 pages, 5 captioned figures, authors from page 11, published version, figures at http://aliceinfo.cern.ch/ArtSubmission/node/186

Centrality dependence of charged particle production at large transverse momentum in Pb-Pb collisions at sNN=2.76\sqrt{s_{\rm{NN}}} = 2.76 TeV

The inclusive transverse momentum ($p_{\rm T}$) distributions of primary charged particles are measured in the pseudo-rapidity range $|\eta|<0.8$ as a function of event centrality in Pb-Pb collisions at $\sqrt{s_{\rm{NN}}}=2.76$ TeV with ALICE at the LHC. The data are presented in the $p_{\rm T}$ range $0.15<p_{\rm T}<50$ GeV/$c$ for nine centrality intervals from 70-80% to 0-5%. The Pb-Pb spectra are presented in terms of the nuclear modification factor $R_{\rm{AA}}$ using a pp reference spectrum measured at the same collision energy. We observe that the suppression of high-$p_{\rm T}$ particles strongly depends on event centrality. In central collisions (0-5%) the yield is most suppressed with $R_{\rm{AA}}\approx0.13$ at $p_{\rm T}=6$-7 GeV/$c$. Above $p_{\rm T}=7$ GeV/$c$, there is a significant rise in the nuclear modification factor, which reaches $R_{\rm{AA}} \approx0.4$ for $p_{\rm T}>30$ GeV/$c$. In peripheral collisions (70-80%), the suppression is weaker with $R_{\rm{AA}} \approx 0.7$ almost independently of $p_{\rm T}$. The measured nuclear modification factors are compared to other measurements and model calculations.Comment: 17 pages, 4 captioned figures, 2 tables, authors from page 12, published version, figures at http://aliceinfo.cern.ch/ArtSubmission/node/284

Multi-particle azimuthal correlations in p-Pb and Pb-Pb collisions at the CERN Large Hadron Collider

Measurements of multi-particle azimuthal correlations (cumulants) for charged particles in p-Pb and Pb-Pb collisions are presented. They help address the question of whether there is evidence for global, flow-like, azimuthal correlations in the p-Pb system. Comparisons are made to measurements from the larger Pb-Pb system, where such evidence is established. In particular, the second harmonic two-particle cumulants are found to decrease with multiplicity, characteristic of a dominance of few-particle correlations in p-Pb collisions. However, when a $|\Delta \eta|$ gap is placed to suppress such correlations, the two-particle cumulants begin to rise at high-multiplicity, indicating the presence of global azimuthal correlations. The Pb-Pb values are higher than the p-Pb values at similar multiplicities. In both systems, the second harmonic four-particle cumulants exhibit a transition from positive to negative values when the multiplicity increases. The negative values allow for a measurement of $v_{2}\{4\}$ to be made, which is found to be higher in Pb-Pb collisions at similar multiplicities. The second harmonic six-particle cumulants are also found to be higher in Pb-Pb collisions. In Pb-Pb collisions, we generally find $v_{2}\{4\} \simeq v_{2}\{6\}\neq 0$ which is indicative of a Bessel-Gaussian function for the $v_{2}$ distribution. For very high-multiplicity Pb-Pb collisions, we observe that the four- and six-particle cumulants become consistent with 0. Finally, third harmonic two-particle cumulants in p-Pb and Pb-Pb are measured. These are found to be similar for overlapping multiplicities, when a $|\Delta\eta| > 1.4$ gap is placed.Comment: 25 pages, 11 captioned figures, 3 tables, authors from page 20, published version, figures at http://aliceinfo.cern.ch/ArtSubmission/node/87

Charge separation relative to the reaction plane in Pb-Pb collisions at sNN=2.76\sqrt{s_{\rm NN}}= 2.76 TeV

Measurements of charge dependent azimuthal correlations with the ALICE detector at the LHC are reported for Pb-Pb collisions at $\sqrt{s_{\rm NN}} = 2.76$ TeV. Two- and three-particle charge-dependent azimuthal correlations in the pseudo-rapidity range $|\eta| < 0.8$ are presented as a function of the collision centrality, particle separation in pseudo-rapidity, and transverse momentum. A clear signal compatible with a charge-dependent separation relative to the reaction plane is observed, which shows little or no collision energy dependence when compared to measurements at RHIC energies. This provides a new insight for understanding the nature of the charge dependent azimuthal correlations observed at RHIC and LHC energies.Comment: 12 pages, 3 captioned figures, authors from page 2 to 6, published version, figures at http://aliceinfo.cern.ch/ArtSubmission/node/286