Civil Procedure—Venue—Contract Fixing Venue in Advance of Litigation

Civil Procedure—Venue—Contract Fixing Venue in Advance of Litigation (Electrical Products Consolidated v. Bodell

Doctor of Philosophy

dissertationThis work presents the results of various investigations using various techniques of hyperpolarizing the nuclei of atoms. Hyperpolarization implies magnetic order in excess of the thermal order obtained naturally as described by Curie's law. The main portion of this work presents the results of a detailed experimental exploration of predictions arising from a new model of transverse nuclear spin relaxation in quantum systems, based on possible manifestations of microscopic chaos in quantum systems. Experiments have been carried out on a number of hyperpolarized xenon samples, each di ering in its relative percentage of xenon isotopes in order to vary the homonuclear and heteronuclear dipole couplings in the spin system. The experiments were performed under a variety of conditions in an attempt to observe the behaviors predicted by the model. Additionally, much more extensive measurements were made on a number of samples of solid CaF2 in both single crystal and powder forms. These samples, although thermally polarized, were observed with superior signal to noise ratios than even the hyperpolarized xenon solids, allowing for more precise measurements for comparison to the theory. This work thus contains the rst experimental evidence for the majority of the model's predictions. Additionally, this work contains the rst precise measurements of the frequency-shift enhancement parameters for 129Xe and krypton in the presence of spin-polarized Rb. The determination of these important numbers will be useful to many groups who utilize spinexchange optical pumping in their labs. This work built on the prior knowledge of a precise number for the frequency-shift enhancement parameter of 3He in Rb vapor. Finally, I detail work using NMR to detect nuclear-spin polarization enhancement in silicon phosphorus by a novel, photo-induced hyperpolarization technique developed by the Boehme research group at the University of Utah. Signiif cant nuclear polarization enhancements were observed by the Boehme group due to electron-photon interactions in semiconductor soilds; these enhancements were observed by their e ffects on the ambient electrons and measured with electron spin resonance techniques. The work described here details experiments to observe the enhanced nuclear polarization by directly measuring the intensity increase in an NMR measurement

IN-SERVICE ENGLISH TEACHER EDUCATION FOR DIGITAL ENVIRONMENTS: PERCEPTIONS ON THEORETICAL BASES

This paper aims at analyzing the perceptions of English teachers about the theoretical bases discussed in a teacher development course named Digital Environments: theory and practice in the classroom. The course, which focuses on promoting digital literacies, is offered by the Federal University of Sergipe (UFS) in partnership with the Undergraduate Center for Distance Education at UFS and the research group E-Lang from UNICAMP. Among the theoretical bases of this study are the authors who discuss the inclusion of digital technologies at schools and English classes as well as the notion of digital literacies (BAWDEN, 2008; BRAGA, 2013; COLL ET AL, 2010; LANKSHEAR & KNOBEL, 2008; LEMKE, 1998; SANTAELLA, 2013). For data analysis, it is taken into accountthe messages posted on the platform where the course is offered, i.e. discussion forums and reflective electronic diary. The results show how the participating teachers understand conceptions such as technology, hyperlinks and digital literacies. In addition, it is observed the relevance of discussing issues related to the official guidelines for teaching foreign languages in Brazil, which leads to the need for the teacher to be constantly involved in professional develpoment

Estratégias de apoio para melhorar a qualidade do ar em áreas portuárias

Despite their key contribution to economic development, harbours pose environmental threat, affecting air quality, local climate, and human health, due to the release of several pollutants. Poor local air quality episodes are particularly concerning when harbours are located near densely populated urban areas, threatening inhabitants’ health. This Thesis was focused on the assessment of the impact of harbour emissions on the air quality over harbours and their surrounding urban areas, with a final goal of producing guidelines to support decision-making in the harbour sector and air quality management, using Port of Leixões as a case-study. After reviewing the state-of-the-art in this research field, a high-resolution emission inventory was developed, based on the two most used methodologies within the scientific community. Data about ship and cargo handling equipment were compiled, allowing the quantification of emissions and identification of their main sources. The comparison of the two methodologies indicates that a new harmonized methodology is recommended, besides the need of continuous update of emission factors and activity data. Having the detailed emission inventory, the community-scale webtool C-PORT was applied for the first time in European harbours to simulate the impact of the maritime emissions on local air quality. The comparison of modelled and observed values validated its application for the case study of Port of Leixões. The highest PM10 concentrations were found near the South Container Terminal of Port of Leixões, while NOx concentrations above 100 µg/m3 were also found near the highway. Land-based emission sources exhibited the highest contribution (around 80 %) to the PM10 concentrations in the study area, while 50 % of NOx concentration was due to docked ships. Mitigation measures were investigated and assessed to improve air quality in harbours and their surroundings. In a case-study, pollutant dispersion was addressed, aiming to control fugitive petcoke emissions and their impact on Port of Aveiro’s neighbour communities. Optimal structure, size and position of a physical barrier were defined based on numerical and physical modelling, achieving a maximum reduction in petcoke dust reaching the nearby residential area of 74 – 88 % for the most frequent/critical wind directions. The studied barrier has been implemented in the field and monitoring campaigns are currently being carried out to assess its effectiveness.Apesar do seu papel-chave no desenvolvimento económico, os portos marítimos constituem uma ameaça ambiental, com impactes na qualidade do ar, clima local, e saúde humana, devido à emissão de inúmeros poluentes. Episódios de má qualidade do ar a nível local são particularmente preocupantes no caso de portos localizados nas imediações de áreas urbanas densamente povoadas, pondo em risco a saúde dos habitantes locais. Esta Tese focou-se no impacte das emissões portuárias na qualidade do ar em portos e suas vizinhanças urbanas. O objetivo final foi a produção de recomendações de suporte à tomada de decisão no setor portuário e gestão da qualidade do ar, usando o Porto de Leixões como caso-de-estudo. Após uma revisão do estado-da-arte neste campo, foi desenvolvido um inventário de emissões de alta-resolução, aplicando as duas metodologias mais frequentemente usadas na comunidade científica. Foram compilados dados sobre navios e equipamentos portuários, permitindo a quantificação das emissões e identificação das suas fontes maioritárias. Deste procedimento resultaram recomendações sobre o desenvolvimento de uma nova metodologia harmonizada. Ficou ainda evidenciada a relevância da atualização dos fatores de emissão e dos dados disponíveis sobre as diferentes atividades portuárias. Dispondo deste inventário de emissões, o C-PORT, uma ferramenta web de escala comunitária, foi aplicado pela primeira vez em portos europeus, para simular o impacte das emissões marítimas na qualidade do ar local. A comparação dos valores modelados com medições de campo validou a aplicação desta ferramenta ao caso-de-estudo do Porto de Leixões. A concentração mais elevada de PM10 foi registada no Terminal de Contentores Sul, registando-se também elevada (> 100 µg/m3 ) concentração de NOx junto à autoestrada vizinha. A maior contribuição (cerca de 80 %) para a emissão global de PM10 na área de estudo adveio de fontes de emissão terrestres, enquanto os navios atracados contribuíram com cerca de 50 % das emissões de NOx. Esta Tese inclui a análise de medidas de mitigação capazes de melhorar a qualidade do ar em portos marítimos e sua vizinhança. O caso-de-estudo apresentado foca-se na dispersão de poluentes, com o intuito de controlar a emissão de partículas de petcoke do Porto de Aveiro, e o seu impacte nas comunidades vizinhas. Com esse objetivo, foi estudada, através de simulação física e numérica, a composição, dimensão e posicionamento de uma barreira física. A solução otimizada permitiu reduzir em 74 % – 88 % para as direções de vento mais frequentes/críticas nesta região, estando atualmente implementada no terreno.Programa Doutoral em Ciências e Engenharia do Ambient

Phase relationship between the long-time beats of free induction decays and spin echoes in solids

Journal ArticleRecent theoretical work on the role of microscopic chaos in the dynamics and relaxation of many-body quantum systems has made several experimentally confirmed predictions about the systems of interacting nuclear spins in solids, focusing in particular on the shapes of spin echo responses measured by nuclear magnetic resonance. These predictions were based on the idea that the transverse nuclear spin decays evolve in a manner governed at long times by the slowest decaying eigenmode of the quantum system, analogous to a chaotic resonance in a classical system. The present paper extends the above investigations both theoretically and experimentally. On the theoretical side, the notion of chaotic eigenmodes is used to make predictions about the relationships between the long-time oscillation phase of the nuclear free induction decay and the amplitudes and phases of spin echoes. On the experimental side, the above predictions are tested for the nuclear spin decays of 19F in CaF2 crystals and 129Xe in frozen xenon. Good agreement between the theory and the experiment is found

EDUCATING FOR SOCIAL JUSTICE IN A POST-DIGITAL ERA

Este artigo discute a educação para a justiça social na era pós-digital. Hoje em dia, sentimentos comuns de desencanto e ceticismo com a tecnologia são expressos pelas escolhas dos professores em usar ou dispensar tecnologias avançadas em suas salas de aula, seja porque não têm acesso a elas ou porque não foram ensinados (nem mesmo treinados) para fazê-lo. Do lado dos alunos, pós-verdade e desinformação têm obscurecido a maneira como os conteúdos e suas relações com o mundo precisam ser considerados. Definimos educação para a justiça social, a partir dos estudos significativos e substanciais da área (FREIRE, 1974/2010; MCDONALD, 2005, 2007, MCDONALD E ZEICHNER, 2009; LEONARD ET AL, 2010; AGARVAL ET AL, 2010; DE OLIVEIRA, 2013). Também aprofundamos concepções que consideramos essenciais para enfrentar os problemas da era pós-digital: (i) atenção ao neoliberalismo e seus impactos na educação para a justiça social (HURSH, 2005; COCHRAN-SMITH ET AL, 2009; SLEETER, 2009 ; MILNER, 2010); (ii) atenção à raça, racismo e uma reivindicação por educação anti-opressora (LADSON-BILLINGS E TATE, 1995; KUMASHIRO, 2000, 2001; BANKS, 2001; RICHERT ET AL, 2009; YOUNG, 2010; SLEETER, 2017). Nossas conclusões são direcionadas à era pós-digital, quando o acesso a dados e às mais recentes tecnologias permanecem limitados àqueles em posições de poder. O professor e os educadores podem se envolver na criação de ambientes que incentivem a exposição a perspectivas que incluam grupos marginalizados e permitam uma maior compreensão de uma variedade de etnias, culturas, origens socioeconômicas e orientações sexuais.This article focuses on education for social justice in a post-digital area. Nowadays, common sentiments of disenchantment and skepticism with technology are expressed by teachers’ choices of using or foregoing advanced technologies in their classrooms, either because they do not have access to them or because they are not properly taught (nor even trained) to use them. On the side of the students, post-truth, misinformation and disinformation have been blurring the way that contents and their relationship with the world should be considered. We define education for social justice, given the significant and substantial studies in the field (FREIRE, 1974/2010; MCDONALD, 2005, 2007, MCDONALD & ZEICHNER, 2009; LEONARD ET AL, 2010; AGARVAL ET AL, 2010; DE OLIVEIRA, 2013). We also deepen conceptions that we consider to be essential for confronting problems of the post-digital era: (i) attention to neoliberalism and its impacts on education for social justice (HURSH, 2005; COCHRAN-SMITH ET AL, 2009; SLEETER, 2009; MILNER, 2010); (ii) attention to race, racism, and a claim for anti-oppressive education (LADSON-BILLINGS & TATE, 1995; KUMASHIRO, 2000, 2001; BANKS, 2001; RICHERT ET AL, 2009; YOUNG, 2010; SLEETER, 2017). Our conclusions are geared towards the post-digital era, when access to data and the latest technology remains limited to those in positions of power. Teacher and teacher educators should strive to create environments which encourage exposure to perspectives that are inclusive of marginalized groups and allow for further understanding of a variety of ethnicities, cultures, socioeconomical backgrounds, and sexual orientations.Este artículo se centra en la educación para la justicia social en el área post-digital. Hoy, los sentimientos comunes de desencanto y escepticismo sobre la tecnología se expresan en las elecciones de los maestros para usar o prescindir del uso de tecnologías avanzadas en sus aulas, ya sea porque no tienen acceso a ellas o porque no se les ha enseñado (ni siquiera capacitado) ) para usarlos. Del lado de los estudiantes, la post-verdad y la desinformación han oscurecido la forma en que se debe considerar el contenido y sus relaciones con el mundo. Definimos la educación para la justicia social, dados los estudios significativos y sustanciales en el campo (FREIRE, 1974/2010; MCDONALD, 2005, 2007, MCDONALD & ZEICHNER, 2009; LEONARD ET AL, 2010; AGARVAL ET AL, 2010; DE OLIVEIRA, 2013 ) También profundizamos conceptos que consideramos esenciales para enfrentar los problemas de la era post-digital: (i) atención al neoliberalismo y sus impactos en la educación para la justicia social (HURSH, 2005; COCHRAN-SMITH ET AL, 2009; SLEETER, 2009; MILNER, 2010); (ii) atención a la raza, el racismo y la demanda de educación contra la opresión (LADSON-BILLINGS AND TATE, 1995; KUMASHIRO, 2000, 2001; BANKS, 2001; RICHERT ET AL, 2009; YOUNG, 2010 ; SLEETER, 2017). Nuestras conclusiones se centran en la era post-digital, cuando el acceso a los datos y la última tecnología sigue siendo limitado para aquellos en posiciones de poder. Los maestros y educadores deben esforzarse por crear entornos que fomenten la exposición a perspectivas que incluyan grupos marginados y permitan una mayor comprensión de una variedad de etnias, culturas, antecedentes socioeconómicos y orientaciones sexuales

Phase relationship between the long-time beats of free induction decays and spin echoes in solids

Recent theoretical work on the role of microscopic chaos in the dynamics and relaxation of many-body quantum systems has made several experimentally confirmed predictions about the systems of interacting nuclear spins in solids, focusing, in particular, on the shapes of spin echo responses measured by nuclear magnetic resonance (NMR). These predictions were based on the idea that the transverse nuclear spin decays evolve in a manner governed at long times by the slowest decaying eigenmode of the quantum system, analogous to a chaotic resonance in a classical system. The present paper extends the above investigations both theoretically and experimentally. On the theoretical side, the notion of chaotic eigenmodes is used to make predictions about the relationships between the long-time oscillation phase of the nuclear free induction decay (FID) and the amplitudes and phases of spin echoes. On the experimental side, the above predictions are tested for the nuclear spin decays of F-19 in CaF2 crystals and Xe-129 in frozen xenon. Good agreement between the theory and the experiment is found.Comment: 20 pages, 9 figures, significant new experimental content in comparison with version