Hydrogen storage of magnesium-based nanocomposites system

Hydrogen storage in traditional metallic hydrides can deliver about 1.5 to 2.0 wt pct hydrogen but magnesium hydrides can achieve more than 7 wt pct. However, these systems suffer from high temperature release drawback and chemical instability problems. Recently, big improvements of reducing temperature and increasing kinetics of hydrogenation have been made in nanostructured Mg-based composites. This paper aims to provide an overview of the science and engineering of Mg materials and their nanosized composites with nanostructured carbon for hydrogen storage. The needs in research including preparation of the materials, processing and characterisation and basic mechanisms will be explored. The preliminary experimental results indicated a promising future for chemically stable hydrogen storage using carbon nanotubes modified metal hydrides under lower temperatures.

Analysis of stroke patients' and carers' reading ability and the content and design of written materials: Recommendations for improving written stroke information

Objective: This study (a) evaluated the reading ability of patients following stroke and their carers and the reading level and content and design characteristics of the written information provided to them, (b) explored the influence of sociodemographic and clinical characteristics on patients' reading ability, and (c) described an education package that provides well-designed information tailored to patients' and carers' informational needs. Methods: Fifty-seven patients and 12 carers were interviewed about their informational needs in an acute stroke unit. Their reading ability was assessed using the Rapid Estimate of Adult Literacy in Medicine (REALM). The written information provided to them in the acute stroke unit was analysed using the SMOG readability formula and the Suitability Assessment of Materials (SAM). Results: Thirteen (22.8%) patients and 5 (41.7%) carers had received written stroke information. The mean reading level of materials analysed was 11th grade while patients read at a mean of 7-8th grade. Most materials (89%) scored as only adequate in content and design. Patients with combined aphasia read significantly lower (4-6th grade) than other patients (p = 0.001). Conclusion: Only a small proportion of patients and carers received written materials about stroke and the readability level and content and design characteristics of most materials required improvement. Practice implications: When developing and distributing written materials about stroke, health professionals should consider the reading ability and informational needs of the recipients, and the reading level and content and design characteristics of the written materials. A computer system can be used to generate written materials tailored to the informational needs and literacy skills of patients and carers. (c) 2005 Elsevier Ireland Ltd. All rights reserved.

RESILIÊNCIA EM GESTÃO DE PESSOAS: UM ESTUDO A PARTIR DA APLICAÇÃO DO QUESTIONÁRIO DO ÍNDICE DE RESILIÊNCIA: ADULTOS EM GESTORES DE UMA ORGANIZAÇÃO DE GRANDE PORTE

O contexto atual das organizações é permeado por pressões, crises e incertezas, características da era da globalização, que requer capacidade humana para adaptações. O enfrentamento constante às situações instáveis necessita, em qualquer nível relacional, do que se tem nomeado resiliência. Atualmente, o uso deste termo vem se expandindo devido à sua aplicabilidade no estudo da capacidade humana de resistir à situação de intensa pressão. O termo resiliência foi desenvol vido a partir de estudos de população em estado de risco e vulnerabilidade, e atualmente tem pautado algumas discussões no campo organizacional. Com base neste conceito, objetiva -se, neste trabalho, estudar a resiliência em gestores de pessoas, em uma organização de grande porte com fins lucrativos, da área de Serviços em São Paulo, a partir da aplicação do Questionário do Índice de Resiliência: Adultos - Reivich-Shatté/Barbosa (2006). A metodologia de pesquisa adotada é de cunho exploratório e descritivo. O instrumento utilizado propiciou mensurar os sete fatores constitutivos da resiliência no comportamento humano, sendo eles: administração das emoções, controle de impulsos, otimismo com a vida, aná lise do ambiente, empatia, auto-eficácia e alcançar as pessoas. Os resultados obtidos demonstram que é possível estudar a resiliência em gestores de pessoas, a partir da utilização do instrumento proposto. Este trabalho permitiu também associar os fatores que constituem a resiliência a algumas competências essenciais necessárias para o gestor de pessoas realizar adequadamente suas atividades, sem negligenciar os aspectos de liderança associados à sua atuação.(AU)

PASTORAL EM SITUAÇÃO DE RUA Análise das Ações Pastorais da Comunidade Metodista do Povo de Rua na Cidade de São Paulo 1992 2009

A população em situação de rua é um fenômeno urbano, agravado na contemporaneidade por fatores de ordem social, econômica, cultural que agrupa pessoas independentemente da idade, etnia, grau de instrução e gênero, em situação de exclusão social, impedidos à renda e suprimento de suas necessidades vitais, culturais e sociais. Na condição de população sobrante, enfrenta obstáculos ao desenvolvimento de suas capacidades intelectuais, biológicas e culturais; à equidade de garantia de direitos civis, políticos e sociais; à qualidade de vida em harmonia e bem-estar objetivo dos seres humanos; e ao exercício pleno de sua cidadania. A Comunidade Metodista do Povo de Rua - CMPR encontrou o seu espaço no início da década de noventa, ao tempo em que a Prefeitura Municipal de São Paulo, na Legislatura da Prefeita Luíza Erundina, promoveu, através da Secretaria Municipal de Bem-Estar social, o censo para conhecer quem era, como vivia e como era vista a população de rua na cidade de São Paulo. Neste contexto, a Igreja Metodista Coreana Ebenezer oferecia à população uma assistência dominical servindo pão, café com leite e achocolatado na região do Parque Dom Pedro II. Sagrou-se a parceria para a criação da CMPR através do despertar do poder público e da participação da Igreja Metodista Coreana através do Café do Coreano. Foi fundamental a disposição dos Bispos Nelson Campos Leite e Geoval Jacinto da Silva, ambos da Terceira Região Eclesiástica da Igreja Metodista, que iniciaram os trabalhos utilizando a instituição de caráter filantrópico da Igreja Metodista, a AMAS Associação Metodista de Assistência Social. Assim, com sede no Viaduto Pedroso e, por proximidade geográfica, a CMPR vinculou-se a AMAS da Catedral Metodista de São Paulo, atuando em três dimensões: (1) criação da Casa de Convivência, (2) abrigamento no período do inverno; (3) Criação do albergue. O Plano de Ação elaborado pela CMPR que consagrou a criação do Albergue, data da transição 1994/95 e teve como base o Credo Social, o Plano para Vida e Missão da Igreja Metodista e o Plano de Ação encaminhado à Prefeitura, à luz da vertente social do movimento Metodista a partir de João Wesley, estabelecendo que o objetivo geral da CMPR fosse o resgate da cidadania das pessoas que constituem a população de rua. Nesta dimensão, a tese está estruturada em cinco capítulos, inclusa pesquisa de campo que foi aplicada a funcionários e ex-funcionários da CMPR, com objetivo de reunir conteúdos para se analisar as ações pastorais da CMPR na perspectiva da Práxis religiosa, considerando a Práxis filosófica e educacional, a fim de perceber se as ações pastorais são ações criadoras, reflexivas, libertadoras e radicais, e se promovem por meio da CMPR o resgate da cidadania em população de rua na cidade de São Paulo.(AU)

A FORMAÇÃO DO PROFESSOR DE LÍNGUAS FRENTE À PRÁTICA DE INCLUSÃO OU EXCLUSÃO

A presente pesquisa tem como objetivo abordar a questão da política de inclusão brasileira e sua real aplicação nas escolas regulares levando em consideração a não utilização de salas especiais, especificamente ao que se refere à disciplina de Língua Espanhola. Aponta os benefícios da convivência com a diversidade para todos os alunos, com ou sem necessidades educacionais especiais, seja quanto ao respeito diante das diferenças, seja quanto aos estímulos no desenvolvimento. Indaga ao que diz respeito a real aprendizagem educacional dos alunos incluídos na sala regular na educação não especial. Discorre sobre o que dizem estudiosos sobre a inclusão escolar de acordo com a literatura educacional objetivando o aprendizado humano e o ensino de idiomas. Busca a reflexão da formação do professor de letras habilitado em língua espanhola diante da realidade da inclusão, a partir da ação investigativa das políticas públicas de formação de professores, bem como às Diretrizes Curriculares Nacionais para as licenciaturas.

EDUCAÇÃO FÍSICA ESCOLAR NAS SÉRIES INICIAIS DO ENSINO FUNDAMENTAL: CONSIDERAÇÕES SOBRE A FORMAÇÃO DOS PROFESSORES

O objetivo desta pesquisa foi analisar como ocorre a formação dos profissionais da Educação Física que atuam nas séries iniciais do Ensino Fundamental. Primeiro foi desenvolvido um estudo da legislação e das diretrizes de formação em Educação Física e em Pedagogia, buscando responder à questão: quem deve ministrar aulas de Educação Física nas séries iniciais do Ensino Fundamental? A seguir foi realizada uma análise de currículos de dois cursos de graduação em Educação Física, bem como foram feitas entrevistas com quatro profissionais do Ensino Fundamental que atuam no segmento em questão e estudaram nas mesmas universidades e/ou faculdades dos cursos analisados. Aplicou-se também um questionário para cinco profissionais, denominados polivalentes , que trabalham em escolas de uma Rede Municipal de Ensino e que têm a responsabilidade de desenvolver as aulas de Educação Física. Como referencial teórico sobre a formação dos profissionais na área, foram utilizadas as reflexões de SOARES (1992), ISAYAMA (2003), FREIRE (2005), MOREIRA (2001), entre outros. Os dados da análise apontam para a necessidade de um novo olhar para a grade curricular, bem como para os conteúdos das graduações em Educação Física, que, mesmo oferecendo formação em bacharelado e licenciatura, não contemplam de forma suficiente uma formação adequada para a atuação nas séries iniciais de Ensino Fundamental, em que a faixa etária dos alunos é de 6 a 10 anos. Os profissionais entrevistados expressam que, de fato, faltaram subsídios para uma prática mais pertinente, bem como uma teoria que tenha sua relevância aceita, considerando-se o cotidiano escolar e as condições para o desenvolvimento do trabalho. A importância da Educação Física na infância é inegável, porém as possibilidades de desenvolvimentos mais amplos ficam, entre outras, sujeitas às questões basicamente econômicas, causando-nos a impressão de que a formação generalista nos cursos de graduação visa redução de custos na mesma medida, as políticas públicas de alguns municípios seguem o mesmo princípio.(AU)

A INCLUSÃO ESCOLAR NA ESFERA PÚBLICA: CONCEPÇÕES E POSSIBILIDADES DE CONCRETIZAÇÃO

O presente estudo constitui-se uma análise sobre a Política de Inclusão do Aluno com Necessidade Educacional Especial (NEE) numa escola da rede regular de ensino. O objetivo central foi compreender os princípios e as propostas que definem a política nacional de educação especial, focando a inclusão dos portadores de necessidades educacionais especiais na rede regular de ensino procurando verificar quais dimensões de inclusão estão presentes no discurso tanto na documentação quanto na prática sobre inclusão. Inicialmente, a pesquisa procurou levantar, relatar e analisar os materiais bibliográficos publicados sobre as questões relativas à inclusão do aluno com NEE no sistema regular de ensino, principalmente a partir de 1988 período em que a Constituição Federal elege como um dos seus princípios a igualdade de condições de acesso e permanência na escola até 2006, quando dados publicados pelo Instituto Nacional de Estudos e Pesquisas Educacionais (INEP) comprovam que houve um aumento significativo das matrículas destes alunos nas escolas regulares. Entrevistas, depoimentos, documentos federais e municipais e dados censitários foram utilizados na análise. Através de algumas categorias de análise tiradas dos depoimentos foi possível identificar a socialização do indivíduo por meio da garantia do direito e integração à concepção de inclusão mais predominante. A necessidade de atendimento especializado ao aluno e aos que venham trabalhar com ele e preocupação com a falta de orientação no trabalho foi apontado como maior dificuldade. Entretanto, mesmo apresentando alguns problemas, evidencia-se uma posição favorável à inclusão dos alunos com NEE na educação regular na unidade pesquisada destacando a aceitação e as providências que a escola vem tomando quanto às adaptações realizadas para garantir educação de qualidade e acessibilidade. O desafio que se coloca às unidades de educação regular com a matrícula dos alunos com NEE é que estas possam contribuir para a efetivação deste direito por meio de uma educação que contribua para uma sociedade menos excludente.(AU)

Le prix de l'individualité. Maine de Brian, Samuel Taylor Coleridge et la volonté: Deux postétités distinctes

This thesis is concerned with Maine de Biran’s and Samuel Taylor Coleridge’s conceptions of will, and the way in which both thinkers’ posterities have been affected by the central role of these very conceptions in their respective bodies of thought. The research question that animates this work can therefore be divided into two main parts, one of which deals with will, while the other deals with its effects on posterity. In the first pages of the Introduction, I make the case for a comparison between two philosophers, and show how this comparison can bring one closer to truth, understood not in objective, but in subjective terms. I then justify my choice by underlining that, in spite of their many differences, Maine de Biran and Samuel Taylor Coleridge followed comparable paths, intellectually and spiritually, and came to similar conclusions concerning the essential activity of the human mind. Finally, I ask whether it is possible that this very focus on the human will may have contributed to the state of both thinkers’ works and of the reception of those works. This prologue is followed by five parts. In the first part, the similarities and differences between the two thinkers are explored further. In the second part, the connections between philosophy and singularity are examined, in order to show the ambivalence of the will as a foundation for truth. The third part is dedicated to the traditional division between subject and object in psychology, and its relevance in history and in moral philosophy. The fourth part tackles the complexity of the question of influence, with respect to both Maine de Biran’s and Coleridge’s cases, both thinkers being indebted to many philosophers of all times and places, and having to rely heavily on others for the publication, or the interpretation of their own works. The fifth part is concerned with the different aspects of the faculty of will, and primarily its relationship with interiority, as incommensurability, and actual, conditioned existence in a certain historical and spatial context. It ends with a return to the question of will and posterity and an announcement of what will be covered in the main body of the thesis. The main body is divided into three parts:‘L’émancipation’, ‘L’affirmation, and ‘La projection’. The first part is devoted to the way Maine de Biran and Samuel Taylor Coleridge extricated themselves from one epistemological paradigm to contribute to the foundation of another. It is divided in four chapters. The first chapter deals with the aforementioned change of paradigm, as corresponding to the emergence of two separate but associated movements, Romanticism and what the French philosopher refers to as ‘The Age of History’. The second chapter concerns the movement that preceded them, i.e. the Enlightenment, its main features according to both of our thinkers, and the two epistemological models that prevailed under it and influenced them heavily in their early years: Sensationism (Maine de Biran) and Associationism (Coleridge). The third chapter is about the probable influence of Immanuel Kant and his followers on Maine de Biran and Coleridge, and the various facts that allow us to claim originality for both thinkers’ works. In the fourth chapter, I contrast Maine de Biran and Coleridge with other movements and thinkers of their time, showing that, contrary to their respective thoughts, Maine de Biran and Coleridge could not but break free from the then prevailing systematic approach to truth. The second part of the thesis is concerned with the first part of its research question, namely, Maine de Biran’s and Coleridge’s conceptions of the will. It is divided into four chapters. The first chapter is a reflection on the will as a paradox: on the one hand, the will cannot be caused by any other phenomenon, or it is no longer a will; but it cannot be left purely undetermined, as if it is, it is then not different from chance. It thus needs, in order to be, to be contradictorily already moral. The second chapter is a comparison between Maine de Biran’s and Coleridge’s accounts of the origin of the will, where it is found that the French philosopher only observes that he has a will, whereas the English philosopher postulates the existence of this will. The comparison between Maine de Biran’s and Coleridge’s conceptions of the will is pursued in the third chapter, which tackles the question of the coincidence between the will and the self, in both thinkers’ works. It ends with the fourth chapter, which deals with the question of the relationship between the will and what is other to it, i.e. bodily sensations, passions and desires. The third part of the thesis focuses on the second part of its research question, namely the posterity of Maine de Biran’s and Coleridge’s works. It is divided into four chapters. The first chapter constitutes a continuation of the last chapter of the preceding part, in that that it deals with Maine de Biran’s and Coleridge’s relations to the ‘other’, and particularly their potential and actual audience, and with the way these relations may have affected their writing and publishing practices. The second chapter is a survey of both thinkers’ general reception, where it is found that, while Maine de Biran has been claimed by two important movements of thoughts as their initiator, Coleridge has been neglected by the only real movement he could have, or may indeed have pioneered. The third chapter is more directly concerned with the posterities of Maine de Biran’s and Coleridge’s conceptions of will, and attempts to show that the approach to, and the meaning of the will have evolved throughout the nineteenth century, and in the French Spiritualist and the British Idealist movements, from an essentially personal one to a more impersonal one. The fourth chapter is a partial conclusion, whose aim is to give a precise idea of where Maine de Biran and Coleridge stand, in relation to their century and to the philosophical movements and matters we are concerned with. The conclusion is a recapitulation of what has been found, with a particular emphasis on the dialogue initiated between Maine de Biran and Coleridge on the will, and the relation between will and posterity. It suggests that both thinkers have to pay the price of a problematic reception for the individuality that pervades their respective works, and goes further in suggesting that s/he who chooses to found his individuality on the will is bound to feel this incompleteness in his/her own personal life more acutely than s/he who does not. It ends with a reflection on fixedness and movement, as the two antagonistic states that the theoretician of the will paradoxically aspires to.

Standardisation and benchmarking for improving translator training

The worldwide growth of the translation industry requires qualified professional translators. During the last decade, we have seen an enormous increase in translator training programmes offered by universities, mainly at postgraduate level. A challenge for such university programmes is to make sure that they prepare graduates who are qualified for the needs of the diverse profession in the rapidly changing market. This means that programmes need to be developed with the market needs in mind and that they need to ensure a good match between graduates' competences and employers' requirements. This paper addresses the following questions: How can universities adapt translator training programmes to the rapidly changing industry and the accompanying changes in professional profiles? How can we reconcile the requests of the industry for graduates who have practical and professional skills with the requests of the universities for graduates who have in-depth academic knowledge and intellectual skills? What standards and benchmarks are in place to assure quality of translator training programmes? Some such developments in respect of benchmarking are illustrated at first for the United Kingdom, followed by information on the European Master’s in Translation (EMT) project, an initiative at the European level. Finally, the paper reflects on the challenges which the EMT translator competence profile poses for university programmes.

The attitudes of students and academic staff towards electronic course support:are we convergent?

The present study investigates the views and attitudes of both the students and staff with regard to the usefulness of electronic course support throughout all four years of the MPharm programme at Aston University. Students were sampled between January and March 2001 using a self-completion questionnaire administered during the start of a practical or tutorial class. All internal academic staff were interviewed using a semi-structured interview format. Response rates were 100 and 89.5%, respectively. The study found that students rapidly embraced the use of electronic course support within the undergraduate programme, although they view its role as augmenting traditional course delivery. This view was mirrored by the academic staff, although only around a half currently place their material on the University's virtual learning environment (VLE), WebCT. The failure of staff to completely embrace the VLE is grounded in a lack of confidence and ability in its use. A majority of the academic staff indicated that they wish to be trained further in the use of information technology. Academic institutions need to understand and meet these needs in parallel with the introduction of any electronic course support.

Manipulatív marketing: fogyasztói észlelések és reakciók

A marketing koncepciónak kezdetektől fogva a vevőorientáció az egyik kulcsfogalma. Tulajdonképpen annak a szemléletváltásnak köszönheti felemelkedését és más menedzsmentdiszciplínától való elhatárolását is, amellyel a vevői igényeket helyezte a vállalati gondolkodás középpontjába. Későbbiekben azonban a kutatók rájöttek arra, hogy maguk az igények az üzleti gyakorlat során nagymértékben kontrollálhatók, és az eladói oldal azóta is él ezekkel a lehetőségekkel. A kutatás arra volt kíváncsi, hogy a vállalatok manipulációs gyakorlata hogyan csapódik le a fogyasztókban, melyek azok a manipulációs eszközök, amelyeket észlelnek, és azokra milyen válaszreakciókat adnak. Azonosíthatók-e tipikus gondolkodási sémák, magatartási mintázatok, amelyek jól jellemzik egyes vevők viszonyát a vállalati manipulációval. A tanulmány feltáró interjúkra épít, amely segít megérteni a fogyasztókban végbe menő komplex mechanizmusokat. Az eredmények azt sugallják, hogy kétfajta folyamat játszódik le a vevői oldalon Egyrészt a fogyasztók idővel rutinszerű magatartásmintákat vesznek fel, amely során a manipulációs eszközök érvényesülése nem tudatos, és a vállalatoknak kedvező reakciókat vált ki. Másrészt, a fogyasztói társadalom is egyfajta érési folyamaton megy át, aminek hatására megtanulják a vállalatok gondolkodásmódját, és – bár a kognitív korlátok miatt azokat nem tudják teljes mértékben lekövetni – igyekeznek önvédő heurisztikákat beépíteni a követett magatartásukba. A kutatás alapján hipotetikusan öt vevőtípust azonosítottunk, akiket egymástól eltérő reakciók jellemeznek. Customer orientation has been the key concept of marketing since the beginning. As a matter of fact, the emergence of marketing and the conceptual distinction between marketing and the related management disciplines can be attributed to this new approach, which put customer needs in the focus of company attention. Later, researchers revealed that the needs themselves can be controlled to a greater extent and sellers have been taking advantage of it since then. The main focus of the research concentrated on the effects of manipulation practices of companies on consumers, which manipulation tools are recognised and how consumers react to them. Furthermore the research also investigated whether typical cognitive, emotional and behavioural patterns, which reflect the relationship between consumers and the manipulation practices of companies, can be identified. The study relies on explorative interviews, which help understand the complex mechanisms of consumer attitudes. The results indicates that the opposite process occur on the consumer side. On the one hand, consumers tend to follow behavioural routines after a while, which help manipulation tools work in an unconscious way that triggers reactions for the favour of companies. On the other hand, the generations of consumers are getting more and more mature and learning the companies’ mentality and, despite having cognitive limitations to identify all the tricks and deceptive attempts, they try to develop and follow defensive heuristics. Based on the data explored we identified five customer types and we described their diverse reactions to manipulation.

Improving publicly funded human services: Incorporating capacity building into the contracting relationship between Children's Services Councils and nonprofit organizations

This qualitative two-site case study examined the capacity building practices that Children’s Services Councils (CSCs), independent units of local government, provide to nonprofit organizations (NPOs) contracted to deliver human services. The contracting literature is replete with recommendations for government to provide capacity building to contracted NPOs, yet there is a dearth of scholarship on this topic. The study’s purpose was to increase the understanding of capacity building provided in a local government contracting setting. Data collection consisted primarily of in-depth interviews and focus groups with 73 staff from two CSCs and 28 contracted NPOs. Interview data were supplemented by participant observation and review of secondary data. The study analyzed capacity building needs, practices, influencing factors, and outcomes. The study identified NPO capacity building needs in: documentation and reporting, financial management, program monitoring and evaluation, participant recruitment and retention, and program quality. Additionally, sixteen different types of CSC capacity building practices were identified. Results indicated that three major factors impacted CSC capacity building: CSC capacity building goals, the relationship between the CSC and NPOs, and the level of NPO participation. Study results also provided insight into the dynamics of the CSC capacity building process, including unique problems, challenges, and opportunities as well as necessary resources. The results indicated that the CSCs’ relational contracting approach facilitated CSC capacity building and that CSC contract managers were central players in the process. The study provided evidence that local government agencies can serve as effective builders of NPO capacity. Additionally, results indicated that much of what is known about capacity building can be applied in this previously unstudied capacity building setting. Finally, the study laid the groundwork for future development of a model for capacity building in a local government contracting setting.

Evaluating the Appropriateness of Project Delivery Systems for Different Trenchless Methods

Trenchless methods have been considered to be a viable solution for pipeline projects in urban areas. Their applicability in pipeline projects is expected to increase with the rapid advancements in technology and emerging concerns regarding social costs related to trenching methods. Selecting appropriate project delivery system (PDS) is a key to the success of trenchless projects. To ensure success of the project, the selected project delivery should be tailored to trenchless project specific characteristics and owner needs, since the effectiveness of project delivery systems differs based on different project characteristics and owners requirements. Since different trenchless methods have specific characteristics such rate of installation, lengths of installation, and accuracy, the same project delivery systems may not be equally effective for different methods. The intent of this paper is to evaluate the appropriateness of different PDS for different trenchless methods. PDS are examined through a structured decision-making process called Fuzzy Delivery System Selection Model (FDSSM). The process of incorporating the impacts of: (a) the characteristics of trenchless projects and (b) owners’ needs in the FDSSM is performed by collecting data using questionnaires deployed to professionals involved in the trenchless industry in order to determine the importance of delivery systems selection attributes for different trenchless methods, and then analyzing this data. The sensitivity of PDS rankings with respect to trenchless methods is considered in order to evaluate whether similar project delivery systems are equally effective in different trenchless methods. The effectiveness of PDS with respect to attributes is defined as follows: a project delivery system is most effective with respect to an attribute (e.g., ability to control growth in costs ) if there is no project delivery system that is more effective than that PDS. The results of this study may assist trenchless project owners to select the appropriate PDS for the trenchless method selected.

Text analytics of social media: Sentiment analysis, event detection and summarization

In the last decade, large numbers of social media services have emerged and been widely used in people's daily life as important information sharing and acquisition tools. With a substantial amount of user-contributed text data on social media, it becomes a necessity to develop methods and tools for text analysis for this emerging data, in order to better utilize it to deliver meaningful information to users. ^ Previous work on text analytics in last several decades is mainly focused on traditional types of text like emails, news and academic literatures, and several critical issues to text data on social media have not been well explored: 1) how to detect sentiment from text on social media; 2) how to make use of social media's real-time nature; 3) how to address information overload for flexible information needs. ^ In this dissertation, we focus on these three problems. First, to detect sentiment of text on social media, we propose a non-negative matrix tri-factorization (tri-NMF) based dual active supervision method to minimize human labeling efforts for the new type of data. Second, to make use of social media's real-time nature, we propose approaches to detect events from text streams on social media. Third, to address information overload for flexible information needs, we propose two summarization framework, dominating set based summarization framework and learning-to-rank based summarization framework. The dominating set based summarization framework can be applied for different types of summarization problems, while the learning-to-rank based summarization framework helps utilize the existing training data to guild the new summarization tasks. In addition, we integrate these techneques in an application study of event summarization for sports games as an example of how to better utilize social media data. ^

Text Analytics of Social Media: Sentiment Analysis, Event Detection and Summarization

In the last decade, large numbers of social media services have emerged and been widely used in people's daily life as important information sharing and acquisition tools. With a substantial amount of user-contributed text data on social media, it becomes a necessity to develop methods and tools for text analysis for this emerging data, in order to better utilize it to deliver meaningful information to users. Previous work on text analytics in last several decades is mainly focused on traditional types of text like emails, news and academic literatures, and several critical issues to text data on social media have not been well explored: 1) how to detect sentiment from text on social media; 2) how to make use of social media's real-time nature; 3) how to address information overload for flexible information needs. In this dissertation, we focus on these three problems. First, to detect sentiment of text on social media, we propose a non-negative matrix tri-factorization (tri-NMF) based dual active supervision method to minimize human labeling efforts for the new type of data. Second, to make use of social media's real-time nature, we propose approaches to detect events from text streams on social media. Third, to address information overload for flexible information needs, we propose two summarization framework, dominating set based summarization framework and learning-to-rank based summarization framework. The dominating set based summarization framework can be applied for different types of summarization problems, while the learning-to-rank based summarization framework helps utilize the existing training data to guild the new summarization tasks. In addition, we integrate these techneques in an application study of event summarization for sports games as an example of how to better utilize social media data.