902 resultados para Calculated (de Bruyn et al. 2009)
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This study used ERP (event-related potentials) to examine both the role of the L1 and the role of individual differences in the processing of agreement violations. Theories of L2 acquisition differ with regard to whether or not native-like acquisition of L2 features is possible (Schwartz and Sprouse, 1994, 1996; Tsimpli and Mastropavlou, 2007), and the results of previous ERP studies are inconsistent when it comes to whether or not native-like processing is observed in response to L2 agreement violations (e.g., Sabourin, 2003; Tokowicz and MacWhinney, 2005). Furthermore, studies of learners in early stages of L2 acquisition have found variability in the emergence of native-like responses (e.g., McLaughlin et al., 2010; Tanner et al., 2009), but sources of variability have not been investigated. The current study examines responses to gender and number agreement violations in English-speaking learners of Spanish (n=24). Stimuli targeted agreement in three conditions: subject-verb agreement (el barco flota/*flotan), which is similar in Spanish and English; number agreement on adjectival predicates (la isla rocosa/*rocosas), a context in which agreement is not instantiated in English; and gender agreement on adjectival predicates (la isla rocosa/*rocoso), which is unique to Spanish. Grammaticality judgments and ERP responses were also tested for correlations with aptitude scores on the Modern Languages Aptitude Test (MLAT; Carroll and Sapon, 1959) and the Raven Advanced Progressive Matrices (Raven, 1965). Results are in line with theories that claim native-like processing is acquirable, since learners demonstrated similar ERP responses to a control group of native Spanish-speakers (n=8) with regard to all three agreement types. Additionally, the MLAT (but not the Raven) was significantly correlated with sensitivity to number violations, both in terms of grammaticality judgments and ERP amplitudes, indicating a role for verbal but not nonverbal aptitude in L2 processing.
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In winter, brine rejection from sea ice formation and export in the Weddell Sea, offshore of Filchner-Ronne Ice Shelf (FRIS), leads to the formation of High Salinity Shelf Water (HSSW). This dense water mass enters the cavity beneath FRIS by sinking southward down the sloping continental shelf towards the grounding line. Melting occurs when the HSSW encounters the ice shelf, and the meltwater released cools and freshens the HSSW to form a water mass known as Ice Shelf Water (ISW). If this ISW rises, the ‘ice pump’ is initiated (Lewis and Perkin, 1986), whereby the ascending ISW becomes supercooled and deposits marine ice at shallower locations due to the pressure increase in the in-situ freezing temperature. Sandh¨ager et al. (2004) were able to infer the thickness patterns of marine ice deposits at the base of FRIS (figure 1), so the primary aim of this work is to try to understand the ocean flows that determine these patterns. The plume model we use to investigate ISW flow is described fully by Holland and Feltham (accepted) so only a relatively brief outline is presented here. The plume is simulated by combining a parameterisation of ice shelf basal interaction and a multiplesize- class frazil dynamics model with an unsteady, depth-averaged reduced-gravity plume model. In the model an active region of ISW evolves above and within an expanse of stagnant ambient fluid, which is considered to be ice-free and has fixed profiles of temperature and salinity. The two main assumptions of the model are that there is a well-mixed layer underneath the ice shelf and that the ambient fluid outside the plume is stagnant with fixed properties. The topography of the ice shelf that the plume flows beneath is set to the FRIS ice shelf draft calculated by Sandh¨ager et al. (2004) masked with the grounding line from the Antarctic Digital Database (ADD Consortium, 2002). To initiate the plumes, we assume that the intrusion of dense HSSW initially causes melting at the points on the grounding line where the glaciological tributaries feeding FRIS go afloat.
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Repeatedly looking at picture books about fruits and vegetables with parents enhances young children’s visual preferences towards the foods in the book (Houston-Price et al, 2009) and influences their willingness to taste these foods (Houston-Price, Butler & Shiba, 2009). This article explores whether the effects of picture book exposure are affected by infants' initial familiarity with and liking for the foods presented. In two experiments parents of 19- to 26-month-old toddlers were asked to read a picture book about a liked, disliked or unfamiliar fruit or vegetable with their child every day for two weeks. The impact of the intervention on both infants’ visual preferences and their eating behaviour was determined by the initial status of the target food, with the strongest effects for foods that were initially unfamiliar. Most strikingly, toddlers consumed more of the unfamiliar vegetable they had seen in their picture book than of a matched control vegetable. Results confirm the potential for picture books to play a positive role in encouraging healthy eating in your children.
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Implementation intention (IMP) has recently been highlighted as an effective emotion regulatory strategy (Schweiger Gallo et al., 2009). Most studies examining the effectiveness of IMPs to regulate emotion have relied on self-report measures of emotional change. In two studies we employed electrodermal activity (EDA) and heart rate (HR) in addition to arousal ratings (AR) to assess the impact of an IMP on emotional responses. In Study 1, 60 participants viewed neutral and two types of negative pictures (weapon vs. non-weapon) under the IMP “If I see a weapon, then I will stay calm and relaxed!” or no self-regulatory instructions (Control). In Study 2, additionally to the Control and IMP conditions, participants completed the picture task either under goal intention (GI) to stay calm and relaxed or warning instructions highlighting that some pictures contain weapons. In both studies, participants showed lower EDA, reduced HR deceleration and lower AR to the weapon pictures compared to the non-weapon pictures. In Study 2, the IMP was associated with lower EDA compared to the GI condition for the weapon pictures, but not compared to the weapon pictures in the Warning condition. AR were lower for IMP compared to GI and Warning conditions for the weapon pictures.
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This main argument of the chapter is that the explanation of the slow pace of business action requires a socio-cultural theory that transcends the narrow premises of dominant corporate social responsibility (CRS) and business management approaches. I assert that only a critical political economy approach which captures the complex interplay between cultural ideas, power, politics, and economic interests can provide basis for explaining the prospects and limits of corporate climate governance. My argument, which draws from similar existing works (Levy and Egan 2003, Levy and Newell 2005, Okereke et al. 2009) is focused on carbon-intensive multinational companies (MNCs) whose activities are generally considered crucial in shaping societal response to climate change (McKibben 2012).
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The first agricultural societies were established around 10 ka BP and had spread across much of Europe and southern Asia by 5.5 ka BP with resultant anthropogenic deforestation for crop and pasture land. Various studies (e.g. Joos et al., 2004; Kaplan et al., 2011; Mitchell et al., 2013) have attempted to assess the biogeochemical implications for Holocene climate in terms of increased carbon dioxide and methane emissions. However, less work has been done to examine the biogeophysical impacts of this early land use change. In this study, global climate model simulations with Hadley Centre Coupled Model version 3 (HadCM3) were used to examine the biogeophysical effects of Holocene land cover change on climate, both globally and regionally, from the early Holocene (8 ka BP) to the early industrial era (1850 CE). Two experiments were performed with alternative descriptions of past vegetation: (i) one in which potential natural vegetation was simulated by Top-down Representation of Interactive Foliage and Flora Including Dynamics (TRIFFID) but without land use changes and (ii) one where the anthropogenic land use model Kaplan and Krumhardt 2010 (KK10; Kaplan et al., 2009, 2011) was used to set the HadCM3 crop regions. Snapshot simulations were run at 1000-year intervals to examine when the first signature of anthropogenic climate change can be detected both regionally, in the areas of land use change, and globally. Results from our model simulations indicate that in regions of early land disturbance such as Europe and south-east Asia detectable temperature changes, outside the normal range of variability, are encountered in the model as early as 7 ka BP in the June–July–August (JJA) season and throughout the entire annual cycle by 2–3 ka BP. Areas outside the regions of land disturbance are also affected, with virtually the whole globe experiencing significant temperature changes (predominantly cooling) by the early industrial period. The global annual mean temperature anomalies found in our single model simulations were −0.22 at 1850 CE, −0.11 at 2 ka BP, and −0.03 °C at 7 ka BP. Regionally, the largest temperature changes were in Europe with anomalies of −0.83 at 1850 CE, −0.58 at 2 ka BP, and −0.24 °C at 7 ka BP. Large-scale precipitation features such as the Indian monsoon, the Intertropical Convergence Zone (ITCZ), and the North Atlantic storm track are also impacted by local land use and remote teleconnections. We investigated how advection by surface winds, mean sea level pressure (MSLP) anomalies, and tropospheric stationary wave train disturbances in the mid- to high latitudes led to remote teleconnections.
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Submicron atmospheric particles in the Amazon Basin were characterized by a high-resolution aerosol mass spectrometer during the wet season of 2008. Patterns in the mass spectra closely resembled those of secondary-organic-aerosol (SOA) particles formed in environmental chambers from biogenic precursor gases. In contrast, mass spectral indicators of primary biological aerosol particles (PBAPs) were insignificant, suggesting that PBAPs contributed negligibly to the submicron fraction of particles during the period of study. For 40% of the measurement periods, the mass spectra indicate that in-Basin biogenic SOA production was the dominant source of the submicron mass fraction, contrasted to other periods (30%) during which out-of-Basin organic-carbon sources were significant on top of the baseline in-Basin processes. The in-Basin periods had an average organic-particle loading of 0.6 mu g m(-3) and an average elemental oxygen-to-carbon (O:C) ratio of 0.42, compared to 0.9 mu g m(-3) and 0.49, respectively, during periods of out-of-Basin influence. On the basis of the data, we conclude that most of the organic material composing submicron particles over the Basin derived from biogenic SOA production, a finding that is consistent with microscopy observations made in a concurrent study. This source was augmented during some periods by aged organic material delivered by long-range transport. Citation: Chen, Q., et al. (2009), Mass spectral characterization of submicron biogenic organic particles in the Amazon Basin, Geophys. Res. Lett., 36, L20806, doi: 10.1029/2009GL039880.
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The rate of high energy cosmic ray muons as measured underground is shown to be strongly correlated with upper-air temperatures during short-term atmospheric (10-day) events. The effects are seen by correlating data from the MINOS underground detector and temperatures from the European Centre for Medium Range Weather Forecasts during the winter periods from 2003-2007. This effect provides an independent technique for the measurement of meteorological conditions and presents a unique opportunity to measure both short and long-term changes in this important part of the atmosphere. Citation: Osprey, S., et al. (2009), Sudden stratospheric warmings seen in MINOS deep underground muon data, Geophys. Res. Lett., 36, L05809, doi: 10.1029/2008GL036359.
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This paper provides general matrix formulas for computing the score function, the (expected and observed) Fisher information and the A matrices (required for the assessment of local influence) for a quite general model which includes the one proposed by Russo et al. (2009). Additionally, we also present an expression for the generalized leverage on fixed and random effects. The matrix formulation has notational advantages, since despite the complexity of the postulated model, all general formulas are compact, clear and have nice forms. (C) 2010 Elsevier B.V. All rights reserved.
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O cerrado é o segundo maior bioma do mundo e contém elevada taxa de endemia, estando presentes diversas plantas para fins medicinais. A literatura da etnociência e da etnobotânica registra que a presença de comunidades tradicionais contribuem na preservação dos ambientes em que estão inseridos, valendo-se desta para valorização e manutenção destas comunidades (DIEGUES, 2000, GUARIM NETO et al., 2008, OLIVEIRA et al., 2009). Diante disso este estudo objetiva discutir os conhecimentos tradicionais sobre o uso de plantas medicinais pela Comunidade Quilombola do Cedro localizada em Mineiros, GO, Brasil. A metodologia empregada foi análise etnográfica donde se coletou informações junto aos membros da comunidade por meio de observação participante, conversas informais e entrevistas aplicadas a membros da comunidade. Os resultados da pesquisa mostram que o preparo dos remédios fitoterápicos se dá de duas formas e locais distintos: (1) no laboratório de plantas medicinais da comunidade, seguindo uma linha de produção e com procedimentos exigidos pelo controle sanitário, e (2) nas residências, baseado no conhecimento tradicional onde o recurso vegetal alm de ser utilizado como remédio, impulsiona a socialização e o compartilhamento de saberes entre a comunidade. Considerando a utilização de plantas medicinais como parte da cultura da comunidade, observa-se um processo ressignificação cultural com a mudança na forma de preparo dos remédios, antes realizadas apenas nas residências e recentemente também no laboratório. Esse processo modifica as formas tradicionais de preparo, contudo, as duas formas coexistem, sendo que a tradicional resiste no seio familiar. Em relação às espécies utilizadas, a maior quantidade de plantas indicadas refere-se a tratamentos de sintomas e afecções no aparelho respiratório. A utilização da flora medicinal e o relacionamento da comunidade quilombola do Cedro com o meio ambiente, fez com que muitas espécies tidas como importantes fossem preservadas, fornecendo contribuições relevantes para a conservação destas espécies e do patrimônio material e imaterial envolvido.
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Uma das mais importantes diretrizes do Sistema Único de Saúde (SUS) é a descentralização da gestão dos serviços de saúde, visando uma maior proximidade dos agentes tomadores de decisão com a população local. Contudo, um dos argumentos contrários à descentralização é de que esta pode implicar em consideráveis perdas de escala. Este trabalho tem como objetivo investigar a existência de economias de escala no setor de saúde pública no Brasil. Alguns estudos empíricos nacionais já encontraram evidências de economias de escala na provisão de serviços públicos em geral, incluindo o caso específico do setor de saúde, como os trabalhos de Souza, Cribari-Neto e Stosic (2005) e Mattos et al. (2009). Este estudo busca acrescentar novas evidências a esse tema, a partir de uma nova investigação que difere das anteriores em metodologia. Inicialmente é calculado um score de eficiência (através do método DEA - Data envelopment analysis) com base em três variáveis de insumo (gastos em saúde, cobertura de esgoto e de abastecimento de água encanada) e três variáveis de produto (mortalidade infantil, internação por doenças infecciosas e taxa de acesso ao sistema de saúde). Após o cálculo deste score, analisa-se a relação entre tamanho da população e outras variáveis demográficas e a eficiência dos municípios na provisão de saúde. Para isso foi feita uma regressão usando dados de painel que inclui 537 dos 645 municípios do Estado de São Paulo ao longo do período 2002-2007, o que permite o controle do efeito fixo dos municípios, alm do controle de características como renda per capita, violência, educação, entre outros. Os resultados confirmam aqueles já encontrados por outros pesquisadores a partir de outras metodologias, revelando que o tamanho do município é um importante determinante de sua eficiência na área de saúde. Assim sendo, por fim, investigam-se possíveis explicações para o forte impacto da escala na eficiência de gastos em saúde. A questão que surge é a identificação dos fatores que determinam essas economias de escala, que podem vir, por exemplo, dos gastos em infra-estrutura – como quantidade de leitos e estabelecimentos – ou de gastos com recursos humanos, equipamentos, materiais ou remédios. Parte desta questão é analisada ao se estimar um modelo de regressões aparentemente não correlacionadas, no qual se identificam diferenças relevantes na intensidade de utilização de diferentes categorias de insumos de acordo com o tamanho da população.
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Este trabalho se propõe a testar a validade da hipótese da paridade câmbio-juro para o caso brasileiro e, posteriormente, a investigar a principal explicação apontada pela literatura para a falncia da UIP, qual seja: a existência de um prêmio de risco cambial variante ao longo do tempo. A clássica abordagem das regressões de Fama, aplicadas para o período de livre flutuação cambial, sugere falncia da hipótese em questão quando considerados contratos de NDF de doze meses sobre o real, identificando viés nos contratos futuros como estimadores da taxa de câmbio – não foi possível obter a mesma conclusão ao se trabalhar com contratos futuros de dólar de um mês negociados na BM&F. Feitas as regressões de Fama, replica-se ao caso brasileiro metodologia implementada por Clarida et. al. (2009) para os países desenvolvidos, na tentativa de capturar eventual relação entre a volatilidade e o excesso de retorno de uma estratégia de carry trade com o real. Em linha com os resultados obtidos pela experiência internacional, detecta-se correlação negativa entre a volatilidade e o excesso de retorno de tal estratégia. A partir de tal conclusão, revisitam-se as regressões de Fama para subperíodos, conforme a volatilidade. Períodos de maior volatilidade foram caracterizados por um incremento do coeficiente da regressão de Fama, novamente em um resultado alinhado àquele obtido por Clarida et. al. (2009). Esgotado o assunto circunscrito às regressões de Fama, passa-se à estimativa da série de prêmio de risco cambial propriamente dita, por meio da metodologia de Filtro de Kalman imposta à série de NDF de doze meses, a qual detectou um prêmio de risco cambial com média positiva na amostra considerada – em linha com a intuição -, mas com medidas de dispersão bastante elevadas. O estudo segue numa tentativa de modelar o prêmio de risco cambial através de um instrumental da família GARCH-M, sendo, entretanto, incapaz de prover boas estimativas para o comportamento da variável sob interesse. Inicia-se um novo capítulo com o intuito de introduzir microfundamentação ao prêmio de risco cambial, trazendo ao caso brasileiro método desenvolvido por Frankel (1982). A aderência da modelagem também foi baixa. Para terminar, apresenta-se investigação preliminar sobre a relação entre o prêmio de risco cambial e a presença de eventos considerados raros na série de PTAX, seguindo intuição levantada por Rietz (1988) e expandida por Barro (2005). A moeda brasileira carrega caráter leptocúrtico superior às demais componentes da amostra, indicando que, de fato, o prêmio de risco cambial exigido para se estar na moeda doméstica pode estar relacionado à recorrência de eventos supostamente raros.
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Este estudo analisa o indivíduo que atua na linha de frente do RIO 2016, um programa social do Governo do Estado do Rio de Janeiro que opera 800 unidades de atendimento no Estado, com gestão da Secretaria de Estado de Esporte e Lazer. O indivíduo analisado nesta pesquisa é denominado Integrador de Núcleo Esportivo e é o responsável pela gestão de uma dessas unidades — Núcleo Esportivo — que atende em média 50 alunos de uma comunidade carente no Estado do Rio de Janeiro. Essa pesquisa analisa o Integrador de Núcleo Esportivo sob uma perspectiva inédita, entendendo-o como um agente que atua alm do seu escopo burocrático de trabalho. Para esse estudo foram consideradas teorias sobre burocracia organizacional, lançando mão da literatura de Michel Crozier ―The Bureaucratic Phenomenon‖ (1964), que analisa as relações entre pessoas, grupos e poder para entender a influência da organização burocrática no indivíduo. O termo ―sociological citizen‖,desenvolvido por Silbey (2009), também foi considerado para classificar esse indivíduo que se mostra mais aplicado que outros nos serviço de seu mandato organizacional e legal. Silbey aplica também o termo ―relational regulation‖ para denominar esta forma particular de prática da ―cidadania sociológica‖ (tradução do autor), por meio da qual os agentes ―governam a lacuna existente entre as expectativas regulatórias e o desempenho requerido‖.
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In this paper we measure inequality of opportunity in daycare and preschool services in Brazil. For this purpose, we construct an opportunity index that modifies the human opportunity index proposed in the literature and used in Barros et al. (2009) to measure inequality in basic opportunities in Latin America and the Caribbean. Specifically, we construct an opportunity measure that includes not only attendance but also parental choice not to enroll children in daycare or preschool, using data from a supplementary questionnaire included in the 2006 version of Pesquisa Nacional por Amostra de Domicílios (PNAD). The results show that there are large differences between our opportunity index and the human opportunity index for children aged 0-3 years old and considerably smaller differences for children aged 4-6 years old, which suggests that preschool may be closer to a basic opportunity than daycare.
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The research topic of this paper is focused on the analysis of how trade associations perceive lobbying in Brussels and in Brasília. The analysis will be centered on business associations located in Brasília and Brussels as the two core centers of decision-making and as an attraction for the lobbying practice. The underlying principles behind the comparison between Brussels and Brasilia are two. Firstof all because the European Union and Brazil have maintained diplomatic relations since 1960. Through these relations they have built up close historical, cultural, economic and political ties. Their bilateral political relations culminated in 2007 with the establishment of a Strategic Partnership (EEAS website,n.d.). Over the years, Brazil has become a key interlocutor for the EU and it is the most important market for the EU in Latin America (European Commission, 2007). Taking into account the relations between EU and Brazil, this research could contribute to the reciprocal knowledge about the perception of lobby in the respective systems and the importance of the non-market strategy when conducting business. Second both EU and Brazilian systems have a multi-level governance structure: 28 Member States in the EU and 26 Member States in Brazil; in both systems there are three main institutions targeted by lobbying practice. The objective is to compare how differences in the institutional environments affect the perception and practice of lobbying, where institutions are defined as ‘‘regulative, normative, and cognitive structures and activities that provide stability and meaning to social behavior’’ (Peng et al., 2009). Brussels, the self-proclaimed "Capital of Europe”, is the headquarters of the European Union and has one of the highest concentrations of political power in the world. Four of the seven Institutions of the European Union are based in Brussels: the European Parliament, the European Council, the Council and the European Commission (EU website, n.d.). As the power of the EU institutions has grown, Brussels has become a magnet for lobbyists, with the latest estimates ranging from between 15,000 and 30,000 professionals representing companies, industry sectors, farmers, civil society groups, unions etc. (Burson Marsteller, 2013). Brasília is the capital of Brazil and the seat of government of the Federal District and the three branches of the federal government of Brazilian legislative, executive and judiciary. The 4 city also hosts 124 foreign embassies. The presence of the formal representations of companies and trade associations in Brasília is very limited, but the governmental interests remain there and the professionals dealing with government affairs commute there. In the European Union, Brussels has established a Transparency Register that allows the interactions between the European institutions and citizen’s associations, NGOs, businesses, trade and professional organizations, trade unions and think tanks. The register provides citizens with a direct and single access to information about who is engaged in This process is important for the quality of democracy, and for its capacity to deliver adequate policies, matching activities aimed at influencing the EU decision-making process, which interests are being pursued and what level of resources are invested in these activities (Celgene, n.d). It offers a single code of conduct, binding all organizations and self-employed individuals who accept to “play by the rules” in full respect of ethical principles (EC website, n.d). A complaints and sanctions mechanism ensures the enforcement of the rules and addresses suspected breaches of the code. In Brazil, there is no specific legislation regulating lobbying. The National Congress is currently discussing dozens of bills that address regulation of lobbying and the action of interest groups (De Aragão, 2012), but none of them has been enacted for the moment. This work will focus on class lobbying (Oliveira, 2004), which refers to the performance of the federation of national labour or industrial unions, like CNI (National Industry Confederation) in Brazil and the European Banking Federation (EBF) in Brussels. Their performance aims to influence the Executive and Legislative branches in order to defend the interests of their affiliates. When representing unions and federations, class entities cover a wide range of different and, more often than not, conflicting interests. That is why they are limited to defending the consensual and majority interest of their affiliates (Oliveira, 2004). The basic assumption of this work is that institutions matter (Peng et al, 2009) and that the trade associations and their affiliates, when doing business, have to take into account the institutional and regulatory framework where they do business.