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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
201

Gerenciamento ágil de projetos: proposta e avaliação de método para gestão de escopo e tempo / Agile project management: proposal and evaluation of a method for scope and time management

Conforto, Edivandro Carlos 22 June 2009 (has links)
A demanda crescente por produtos inovadores desafia as práticas e métodos consagrados de gerenciamento de projetos. Uma das respostas foi o surgimento da abordagem do gerenciamento ágil de projetos (GAP). Essa abordagem, inicialmente aplicada na área de software, está embasada em um conjunto de princípios que buscam simplificar o processo de gestão, tornando-o mais flexível e auto-gerido. Seu enfoque está no aprendizado contínuo por meio de iterações constantes e entregas em tempo reduzido, possibilitando assim, agregar valor em ambientes dinâmicos de negócio. No entanto, existe uma lacuna nessa teoria quanto à aplicação desses princípios no desenvolvimento de novos produtos, principalmente os que envolvem hardware. O tema do trabalho é investigar a aplicação prática desses princípios no desenvolvimento de novos produtos. Para tal, foi adotada a seguinte estratégia: desenvolver, implantar e avaliar um método para planejamento e controle de escopo e tempo utilizando como base um conjunto de princípios do gerenciamento ágil de projetos. O método desenvolvido foi intitulado IVPM2 (Iterative and Visual Project Management Method) e sua criação deu-se por meio do extensivo estudo da literatura sobre GAP combinado com uma pesquisa-ação pura realizada em duas empresas de base tecnológica da região de São Carlos, nomeadas Empresa A e Empresa B. O desenvolvimento e implantação do método ocorreu simultaneamente e contou com a participação dos profissionais dessas empresas, considerando dois cenários distintos. Na empresa A, o IVPM2 foi implantado em um único projeto piloto, de longa duração e com maior complexidade e grau de inovação. Na empresa B o método foi testado em um ambiente multiprojetos (7 projetos) com menor duração e complexidade. Para avaliação do IVPM2 foi utilizada estatística descritiva a partir da análise de dados qualitativos e quantitativos, coletados a partir da aplicação de questionários, entrevistas e análise de documentos. O objetivo foi responder ao problema central de pesquisa e as duas perguntas específicas que guiaram este estudo. O problema central dessa pesquisa foi descrito como: É possível aplicar os princípios do GAP para o planejamento e controle de projetos de produtos inovadores? E, consequentemente as questões específicas consideradas nesse estudo: Q1) O IVPM2 adere aos princípios da abordagem de gerenciamento ágil de projetos? Q2) O IVPM2 trouxe benefícios para a gestão de projetos das empresas? Os resultados apontaram evidências da presença de alguns princípios do GAP no IVPM2, classificando-o como um método ágil. Além disso, o IVPM2 foi capaz de proporcionar vários benefícios para a gestão de projetos de desenvolvimento de novos produtos em ambas as empresas estudadas. Contribuiu também, para a melhoria de outros aspectos da gestão de projetos não tratados diretamente nesse estudo. As evidências coletadas durante a pesquisa, portanto, indicaram diversos benefícios a partir da combinação de princípios do GAP com técnicas tradicionais de gestão de projetos e um software. São indícios de que é possível aplicar os princípios dessa teoria do GAP no planejamento e controle de projetos de desenvolvimento de produtos inovadores inseridos em ambientes dinâmicos de negócio. Por fim, o estudo aponta a necessidade de aprimorar as análises conduzidas e o próprio IVPM2 para aplicação e validação em outras empresas e ambientes de projeto. / The high demand for innovative products has been treated as a challenge for the adoption of traditional project management (PM) practices and methods, specially those ones developed in turbulent and complex business environments. Recently, an alternative approach to deal with these challenges emerged. This approach, entitled Agile Project Management (APM), firstly applied in the software development area, is based on a set of principles which has the purpose to keep the management process as simple as possible, becoming more flexible and self-manageable. By focusing on continuous learning using constant iterations and rapid value deliverable driven, APM aims to improve the results for clients in face of turbulent business environment. However, there is lack on the literature regarding APM principles application in new product development (NPD) projects. The aim of this research is to investigate this issue and the practical application of those principles to NPD projects, developed under turbulent and innovative business environments. To achieve this goal the following strategy was adopted: develop, implement and evaluate a method for planning and controlling scope and time. It was based on a set of principles extracted from the APM literature. The method developed was entitled IVPM2 (Iterative and Visual Project Management Method) and its creation comprised an extensive literature review combined with a pure action-research methodology carried out in two small technology-based companies from the São Carlos technological pole. The companies were called Company A and Company B, and the IVPM2 development, implementation and evaluation activities occurred simultaneously in both companies, considering two distinct scenarios. In the company A the IVPM2 was implemented in a single long term project, with a high level of complexity and innovation. In the company B the IVPM2 was implemented in more than one project (a total of 7 projects) with less complexity and innovation aspects. In order to evaluate the IVPM2 adherence and contribution to project management a statistic descriptive approach was applied using qualitative and quantitative data. The data was collected by questionnaire, interviews and document analysis. The main purpose of this evaluation was to respond the central research problem and the specific research questions. The central research problem was described as: Is it possible to apply APM principles for planning and controlling innovative product projects? Consequently, the specific research questions considered after the method implementation were: RQ1) Did IVPM2 adhere to APM principles? RQ2) Did IVPM2 contribute to enhance project management process in the companies under study? The results showed many evidences of the presence of APM principles in the IVPM2 as stated in the literature. Moreover, the IVPM2 was capable to enhance many aspects of project management process of new product development in both companies studied. It also contributed to improve other aspects not directly addressed in the current research. Finally, the evidences collected during the research have indicated many benefits by combining principles from APM approach with traditional PM techniques and a PM software to support project management. This result is important to consider the applicability and viability of APM principles application to NPD projects in turbulent, innovative and complex business environments. Finally, this study has presented many indications of the need to explore this theme and improve the analysis and the IVPM2 components in order to implement them in different companies and project contexts.
202

Estudo de metodologias para formatação de empreendimentos voltados para o segmento de parques de diversões. / Study of methodologies for formatation of amusement park segment oriented project.

Rodrigues, Anna Maria de Araújo 12 August 2004 (has links)
A indústria do turismo é um dos setores da economia que mais tem crescido nos últimos anos movimentando mais de quatrocentos bilhões de dólares em todo o mundo, valor este que segundo a OMT – Organização Mundial de Turismo, passará a dois trilhões de dólares no ano de 2020. Para os países em desenvolvimento, como o Brasil, o turismo possibilita a expectativa de uma efetiva contribuição para o desenvolvimento econômico.Os parques de diversões podem atuar nesse sentido tanto como atração principal, tornando-se local de destino, quanto como incremento da oferta de entretenimento em destinações turísticas. No entanto, a simples transposição do modelo americano para o Brasil, não é garantia de sucesso. Pelo contrário, os parques nacionais embora inspirados no modelo americano devem estar voltados para as expectativas, hábitos e tradições do povo brasileiro. Para que isso ocorra o produto deve ser formatado adequadamente. Como a disciplina gerenciamento de projetos vem se tornando cada vez mais difundida no mundo, inclusive no Brasil, este trabalho tem por objetivo estudar técnicas e processos de gerenciamento de projeto que estejam voltadas para a formatação do produto, como uma forma de contribuir para uma formatação adequada do produto parques de diversões. / The tourism is one of the sectors of economy which more has grown in the last few years , with figures of over four hundred billion worldwide. This amount according to WTO – World Tourism Organization will raise to two trillion dollars in the year 2020. To developing countries, like Brazil, tourism makes the expectation of effective contribution to economic development real. Amusement parks may act this way either as main atraction, becoming the destination, or as an increasing in the offer of entertainment in touristic places. However, the simple use of the american model to Brazil, isn´t guarantee of success. On the contrary, National amusement parks although inspired in american models must be focused on brazilian expectations, habits and traditions. In order to it occur, the product must be properly formatted. As the subject business management has become so known throughout the world, including Brazil, the objective of this paper is to study techniques and processes of management which are focused on the product organization as a way of contributing to an adequate product formatation.
203

John Locke's investigation into our knowledge of bodies

Esser, Frederick 06 June 2000 (has links)
Da John Locke wiederholt betont, dass seine Theorie von materiellen Körpern, vorgebracht im Essay concerning Human Understanding (1690), eine genuin philosophische Darstellung von Körpern sei, summiert sich das Thema seiner Ausführungen zu einer philosophischen Reflektion der sogenannten wissenschaftlichen Revolution im siebzehnten Jahrhundert auf. In dieser Arbeit werde ich eine Interpretationslinie entwickeln, welche zu bestimmen versucht, worin das genuin philosophische Anliegen von Lockes Analyse von Körpern besteht. Sie führt zu einer umfassenden Neubetrachtung von Lockes Ausführungen, da Unterschiede zu anderen Interpretationen gerade bei den zentralen Fragestellungen und der ihnen entsprechenden Begriffen bestehen, namentlich von: dem Substratum von Körpern, primären und sekundären Qualitäten, Ähnlichkeit, der Rolle der Korpuskulartheorie, Archetypen, realen und nominalen Essenzen, dem Argument zu Spezien und Klassifikation, die Bedeutung von Lockes Sprachanalyse, dem Wissensbegriff, dem Ideal wissenschaftlichem Verstehens und der Bestimmung der Reichweite zeitgenössischen Wissens. Es wird argumentiert, dass er bewusst zeitgenössisches Wissen von Körpern in der Perspektive eines idealen, wissenschaftlichen Verstehens von ihnen bestimmt und dass er so einen philosophischen Rahmen für die Naturwissenschaften entwirft, der: (1) spezifiziert, worin eine Wissenschaft von Körpern idealerweise besteht, (2) zeitgenössisches Wissen in dieser Perspektive bestimmt, (3) eine eigene Konzeption für eine zeitgenössische Wissenschaft beinhaltet, welche Mittel zur Verfügung stellt, dieses Wissen zu erweitern und (4) alternative Ideen von einer Wissenschaft von Körpern zurückweist. / Since John Locke repeatedly insists that his theory of bodies, endorsed in the Essay concerning Human Understanding (1690), is a genuinely philosophical assessment of bodies, the topic of his account adds up to a philosophical reflection on the so-called scientific revolution in the seventeenth century. In this work, I will develop a line of interpretation that undertakes to settle the issue what the genuinely philosophical issue of Locke's analysis of bodies consists in. This leads to a thorough re-examination of Locke's account, since the differences to other interpretations concern most prominent issues on bodies and, correspondingly, many of their crucial concepts: the substratum of bodies, primary and secondary qualities, resemblance, the role of corpuscularian theory, archetypes, real and nominal essences, the argument on species and classification, the significance of the analysis of language, the concept of knowledge, the ideal of scientific understanding, and the account of the scope of contemporary knowledge. As will be argued, Locke consciously assesses contemporary knowledge in the perspective of an ideal scientific grasp of bodies and thus unfolds a philosophical framework for natural science which: (1) specifies what a science of bodies ideally consists in, (2) assesses contemporary knowledge in this perspective, (3) advances an own conception of a contemporary science of bodies that proposes means to enhance contemporary knowledge, and (4) refutes alternative ideas of a science of bodies.
204

Escopo de projeto para produção de vedações verticais e revestimentos de fachada. / Design for production of partition walls and facade coverings.

Manneschi, Karen 17 November 2011 (has links)
No Brasil, a inserção do projeto para produção de vedações verticais e revestimentos de fachada nas empresas de construção civil gerou métodos de trabalho com melhorias significativas no desenvolvimento e na racionalização dos processos de construção civil. Essas melhorias influenciaram tanto o desempenho quanto as vantagens competitivas para as empresas contratantes. Os projetos para produção, além de oferecer excelentes informações para a tomada de decisões táticas e estratégicas para gerentes e coordenadores de projeto, geram também dados importantes para a equipe de produção, tornando-se uma ferramenta essencial para assegurar a compatibilidade e racionalização construtivas. Alguns pesquisadores têm demonstrado a importância dos projetos para a produção na indústria da construção civil ao propor diretrizes de projeto ou diretrizes técnicas para que esses projetos sejam desenvolvidos. No entanto, nenhum trabalho abordou o escopo essencial que esses projetos devam possuir, nem tampouco em que fase de desenvolvimento cada atividade deve ser elaborada. Esta pesquisa tem por objetivo elaborar uma proposição de escopos de projetos para produção de vedações verticais e revestimentos de fachada e analisar criticamente as mudanças introduzidas nas práticas do planejamento do processo do projeto de cada empresa participante da pesquisa, de maneira a proporcionar referências e documentações que norteiem tanto a que tecnologia construtiva quanto processo de projeto e o planejamento do mesmo na construção civil brasileira. / In Brazil, the incorporation of design for the production of partition walls and facade coverings into construction companies has generated working methods with significant improvements in the construction development and rationalization processes. These improvements affected both the performance and the competitive advantages for companies contractor. The design for production, besides offering excellent information support to enable the design managers to make strategic decisions, also generates important data for the production team, becoming an essential tool for achieving compatibility and rationalization in construction. Some researchers have demonstrated the relevance of production design in the construction industry; however, the content of those designs did not received sufficient attention from academics and professionals. This research aims to describe the elaboration scopes process of the production of partition walls and facade coverings and analyzing the changes made in the practices of the design process of each participating company, from manuals scopes of projects developed in attempt to provide references and documentation that directs the construction technology, the design process and also the planning of it in the Brazilian civil construction.
205

Extensão da cláusula compromissória na arbitragem comercial internacional: o caso dos grupos societários / The extension of the arbitral agreement in international comercial arbitration: the group of companies case

Jabardo, Cristina Saiz 25 May 2009 (has links)
O objeto de estudo desta dissertação é a abrangência subjetiva da cláusula compromissória, especificamente daquela celebrada por sociedades pertencentes a grupos societários. O problema, ainda novo no Brasil devido ao desenvolvimento recente da arbitragem em nosso país, já foi objeto de muito debate na Europa e nos Estados Unidos, onde a arbitragem é usada há muitos anos como método alternativo de resolução de conflitos. No âmbito da arbitragem comercial internacional, consolidou-se, tanto na jurisprudência como na doutrina, a teoria da unidade econômica dos grupos societários. Ela reconhece a especificidade do problema que a presença de agrupamentos de sociedades suscita na arbitragem, devido, essencialmente, à dupla realidade que eles representam unidade diretiva e econômica e diversidade jurídica. Nesta dissertação, procuramos expor as bases sobre as quais essa teoria, consolidada na prática comercial internacional, se assenta. Se no Brasil o tema não foi suficientemente discutido, podemos aprender as lições daqueles que não só já debateram exaustivamente a questão como, também, parecem já ter encontrado uma solução, ainda que ela não seja indene de críticas e ainda mereça ser aperfeiçoada. De início, tentamos conceituar e caracterizar os grupos societários. Em seguida, fizemos um apanhado de casos emblemáticos da jurisprudência arbitral e estatal, de diversos países, que recorreram à teoria da unidade econômica do grupo. Nosso intuito foi verificar a solução conferida ao problema por aqueles que se depararam com ele no caso concreto. Depois, procuramos expor a visão da doutrina sobre a teoria da unidade econômica do grupo, para podermos concluir onde reside o problema central da questão. Ao fim, discutimos o possível obstáculo, apontado por alguns autores, à aplicação da teoria no Direito brasileiro. / The purpose of this paper is to discuss who are the parties to the arbitration agreement, especially regarding the convention executed by companies that form part of a group. The issue, still topical in Brazil due to the recent development of the arbitration in our country, has already been subject to much debate in Europe and in the United States, where arbitration has been used for years as an alternative dispute resolution method. In international arbitration, the group of companies theory has been restated, both within the legal authorities and in case law. Such theory acknowledges the specificity of the issue raised by the presence of groups of companies in arbitration, especially due to their dual characteristics managerial and economical unit and legal diversity. In this paper, we have sought to settle the basis over which such theory, already settled in the international commercial arbitration practice, is construed. Since in Brazil the subject hás been scarcely discussed, we may learn lessons from those who have not only exhaustively debated it but who also seem to have found a way to solve it, even if it is not immune to criticism and still ought to be improved. We have initially tried to clarify the notion and the characteristics of the groups of companies. We have subsequently gathered a number of illustrative arbitral and state case law, from different countries, which have made use of the group of companies theory. Our aim was to verify the solution given to the issue by those who have actually been faced with the problem. Then, we have tried to present the legal authoritys view on the group of companies theory in order to conclude where the issue is in fact centered. In the end, we have discussed a possible obstacle, which certain authors have raised, as to the application of the theory in the Brazilian Law.
206

Vers une plateforme pour l'extraction et la visualisation multi-échelle d'événements sociaux / Towards a Framework for Multiscale Social Event Extraction and Visualization

Rehman, Faizan Ur 07 December 2018 (has links)
La population des villes devrait doubler d'ici le milieu du siècle, selon les estimations de l’OMS. Cette augmentation rapide de la population a un impact sur les transports et la croissance économique, et accroîtra les responsabilités des autorités de gestion locales. Nous vivons une transformation des villes en villes intelligentes offrant de nouveaux services à la population, en optimisant l’utilisation des ressources disponibles. Qu'il s'agisse de données provenant des citoyens, de données gouvernementales ouvertes ou d'autres sources en ligne, une pluralité de sources de données peut permettre la création d’outils intelligents pour gérer efficacement les activités quotidiennes. De plus, grâce au progrès d'Internet et des technologies mobiles, les plateformes de réseaux sociaux (Twitter) sont devenues des modes de communication populaires. Elles permettent aux utilisateurs de partager un large éventail d'informations, y compris des données spatio-temporelles. Ainsi, Il est aisé d'accéder, en temps réel, à des connaissances provenant de différents types de données disponibles, riches, géo-référencées et issues de sources multiples et de les intégrer sur une carte. Il s'agit d'une réelle opportunité d'enrichir les cartes traditionnelles.Dans cette thèse, nous proposons d'abord un système de recommandation d'itinéraires, tenant compte des contraintes temps réel, en l'absence d'infrastructure physique ; en exploitant les données géolocalisées issues de réseaux sociaux (twitter) pour identifier les contraintes de trafic temps réel et, par conséquent, recommander un chemin optimisé. Nous avons mis en œuvre un système d'indexation à base de grille spatiale pour notre modèle de prédiction en quasi-temps réel. Ensuite, nous avons introduit le concept de "cartes intelligentes " intégrant la représentation visuelle de couches de « connaissances pertinentes » par le biais de la collecte, la gestion et l'intégration de sources de données hétérogènes. Contrairement aux cartes conventionnelles, les cartes intelligentes extraient des informations à partir des événements annoncés et découverts en temps réel (concerts, incidents, ...), les offres en ligne et les analyses statistiques (zones dangereuses, …) en encapsulant les données entrantes semi-structurées et non structurées dans des paquets génériques structurés.Cette méthodologie ouvre la voie à la fourniture de services et applications intelligents. De plus, le développement de ‘’cartes intelligentes’’ nécessite un traitement efficace et évolutif et la visualisation de couches basées sur les connaissances à plusieurs échelles cartographiques, permettant ainsi une navigation fluide et sans encombre. Enfin, nous présentons Hadath, un système évolutif et efficace qui extrait les événements sociaux d'une multitude de flux de données non structurés. Nous utilisons le traitement du langage naturel et les techniques de regroupement multidimensionnel pour extraire les ‘’événements pertinents’’ à différentes échelles cartographiques et pour déduire l'étendue spatio-temporelle des événements détectés.Le système comprend un composant de gestion et de prétraitement des différents types de sources de données et génère des paquets de données structurés à partir de flux non structurés. Notre système comprend également un schéma d'indexation spatio-temporelle hiérarchique en mémoire pour permettre un accès efficace et évolutif aux données brutes, ainsi qu'aux groupes d'événements extraits. Dans un premier temps, les paquets de données sont traités pour la découverte d’événements à l'échelle locale, puis l'étendue spatio-temporelle appropriée. Par conséquent, les événements détectés sont affichés à différentes résolutions spatio-temporelles, ce qui permet une navigation fluide. Enfin, pour valider notre approche, nous avons mené des expériences sur des flux de données réelles. Le résultat final du système proposé, nommé Hadath crée une expérience unique et dynamique de navigation cartographique. / The population in cities is slated to double by mid-century according to estimates prepared by the World Health Organization. This rapid increase in population will impact transportation and economic growth, and will increase responsibilities of local managing authorities and different stakeholders. It is a need of the hour to convert cities into smart cities in order to provide new service to the public, by using available resources in an optimum manner. From crowd-sourced data and open governmental data to other online sources, a variety of data sources can provide users with smart tools to efficiently manage their daily activities. Moreover, with the advancement in Internet and mobile technologies, social networking platforms such as Facebook and Twitter have become popular modes of communication. They allow users to share a spectrum of information, including spatio-temporal data, both publicly and within their community of interest in real-time. Scrutinizing knowledge from different types of available, rich, geo-tagged, and crowd-sourced data and incorporating it on a map has become more feasible. This presents a real opportunity to enrich traditional maps and enhance conventional spatio-temporal queries with the help of different types of data extracted from a variety of available data sources. In this thesis, we first propose a constraint-aware route recommendation system in lack of physical infrastructure environment that leverages geo-tagged data in social media and user-generated content to identify upcoming traffic constraints and, thus, recommend an optimized path. We have designed and developed a system using a spatial grid index to inform users about upcoming constraints and calculate a new, optimized path in minimal response time. Later, the concept of “smart maps” will be introduced by collecting, managing, and integrating heterogeneous data sources in order to infer relevant knowledge-based layers. Unlike conventional maps, smart maps extract information about live events (e.g., concert, competition, incidents, etc.), online offers, and statistical analysis (e.g., dangerous areas) by encapsulating incoming semi- and un-structured data into structured generic packets. This methodology sets the ground for providing different intelligent services and applications. Moreover, developing smart maps requires an efficient and scalable processing and the visualization of knowledge-based layers at multiple map scales, thus allowing a smooth and clutter-free browsing experience. Finally, we introduce Hadath, a scalable and efficient system that extracts social events from a variety of unstructured data streams. Hadath applies natural language processing and multi-dimensional clustering techniques to extract relevant events of interest at different map scales, and to infer the spatio-temporal extent of detected events. The system comprises a data wrapping component which digests different types of data sources, and prepossesses data to generate structured data packets out of unstructured streams. Hadath also implements a hierarchical in-memory spatio-temporal indexing scheme to allow efficient and scalable access to raw data, as well as to extracted clusters of events. Initially, data packets are processed to discover events at a local scale, then, the proper spatio-temporal extent and the significance of detected events at a global scale is determined. As a result, live events can be displayed at different spatio-temporal resolutions, thus allowing a smooth and unique browsing experience. Finally, to validate our proposed system, we conducted experiments on real-world data streams. The final output of our system named Hadath creates a unique and dynamic map browsing experience
207

Performing gender in the 'theatre of war' : embodying the invasion, counterinsurgency and exit strategy in Afghanistan

Laastad Dyvik, Synne January 2013 (has links)
This thesis offers a critical feminist reading of the war in Afghanistan, from invasion, through the practice of counterinsurgency, to the training of the Afghan National Army as a central part of NATO's exit strategy. Empirically it focuses on the discourses, policies and practices of the US and Norwegian militaries in Afghanistan. It draws on a range of material including military doctrine and policy, parliamentary discussions, public policy documents, interviews, political statements and soldiers' memoirs. Deploying the theoretical framework of performative gender with an emphasis on embodiment, it shows how particular gendered bodies are called into being and how the distinct practices of war in Afghanistan produce and rely on a series of multiple, fluid and, at times, contradictory performances of masculinity and femininity. It demonstrates how gendered performances should not be considered superfluous, but rather integral to the practices of war. It illustrates this, first, by examining the production of the (in) visible ‘body in the burqa' alongside the ‘protective masculinity' of Western politicians in the legitimation of the invasion; second, through the ‘soldier-­‐scholars', ‘warriors' and the Female Engagement Teams (FETs) in practices of ‘population­‐centric' counterinsurgency, examining the ways in which counterinsurgency is a gendered and embodied practice; and third, through the remaking of the fledgling Afghan National Army (ANA) recruits in the NATO exit strategy. The thesis furthers feminist studies on gender and war in International Relations by emphasising the multiplicity of gendered bodies and performances by problematizing singular notions of masculinity and femininity. It contributes to existing literature that reads the war in Afghanistan as a neocolonial and biopolitical practice, enhancing these readings by paying attention to the gendering of bodies and their performances, thereby expanding critical investigations into late modern ways of war and counterinsurgency.
208

Intention d’apprendre et diversité des partenaires : effets simples et combinés sur le transfert de connaissances entre alliés / Intent to Explore and Partner Diversity : Simple and Combined effect on Interfirm Knowledge Transfer

Mazloomi Khamseh, Hamid 30 April 2010 (has links)
En adoptant l’approche basée sur la connaissance, cette recherche étudie les effets de trois éléments préalables pour le transfert inter-organisationnel de connaissances (TIC). Ces trois éléments sont: l’intention de l’entreprise à explorer la connaissance du partenaire, la diversité entre les partenaires qui représente la source de nouveauté potentielle à apprendre, et enfin les effets mutuels de ces deux éléments. Une enquête auprès de 114 entreprises françaises, montre un impact positif de l’intention d’exploration sur l’efficacité du TIC. Nous avons également trouvé une relation en U inversé entre la diversité du partenaire et l’efficacité du TIC. Les interactions entre ces deux éléments sont étudiées sur la base de deux hypothèses complémentaires: La variation de l’intention d’explorer a un impact positif sur le TIC dans un contexte de faible diversité des partenaires, au contraire des alliances avec forte diversité entre les partenaires dans lesquelles la variation de l’intention d’explorer influence négativement le TIC. Les résultats de ces dernières hypothèses correspondent à deux approches d’exploration : la profondeur et l’étendue de l’exploration. Lorsqu’une entreprise, ayant une intention exploratoire, fait une alliance avec des partenaires similaires, ils profitent de leur profondeur commune d’exploration pour favoriser l'apprentissage et la création de nouvelles connaissances. L’étendue de l’exploration dans une alliance est la mesure par laquelle les partenaires de l'alliance explorent de nouvelles connaissances dans des éléments non-similaires de leur base de connaissances. Toutefois, nos résultats montrent que la diversité trop élevé entre des partenaires réduit l’effet positif de l’intention d’explorer sur le TIC à cause de la distance important entre les éléments de connaissances des partenaires à explorer / Relying on knowledge based view; this study tests the effects of three concepts as the prerequisites for interfirm learning: Intent to explore, Existence of novelty, and Approach of exploration. The paper defines the existence of new knowledge to be learnt by the level of partner diversity and addresses approaches of exploration by the interactive effect of the explorative intent and partner diversity. The hypotheses are tested based on a survey over a sample of 114 French companies. Determinants of knowledge transfer between partners such as ambiguity of partner's knowledge, knowledge protection and trust are controlled. Using Tobit regression models, the findings show that the intent to explore is positively related with interfirm knowledge transfer. Moreover, an inverted U-shape relationship is observed between partner diversity and the effectiveness of interfirm knowledge transfer. Finally, the negative moderating effect of partner diversity on the relation of exploration and knowledge transfer highlights the effect of two approaches of exploration: depth and scope of exploration. In the accordance with the concept of depth of search we find that the interactive effect of similarity of partners with explorative intent is positive on interfirm learning. We also find that a broad search scope represented by the interactive effect of partner diversity and intent to explore has negative impact on interfirm learning
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Análise histopatológica de lesões leucoqueratósicas da mucosa oral avaliadas pelos exames de luminescência, cromoscopia e microscopia confocal reflectante / Histological analysis identified and assessed by tests of luminescence, chromoendoscopy and confocal reflectance leukokeratosis lesions

Ana Patricia Carneiro Gonçalves Bezerra 12 August 2014 (has links)
O câncer de mucosa oral é um problema de saúde pública, com maior incidência em homens acima de 50 anos. Uma das manifestações clínicas mais precoces do câncer da mucosa oral são as lesões leucoqueratósica. O aspecto clínico não homogêneo e o tamanho maior de 200mm2, em mucosa não queratinizada como a do assoalho da boca e ventre da língua, são aspectos que implicam na possibilidade de evolução da lesão. A dificuldade do diagnóstico das lesões precoces está na seleção do local a ser biopsiado principalmente frente a lesões extensas e heterogêneas. O objetivo desta pesquisa é avaliar se a utilização do exame clínico juntamente com os métodos auxiliares de diagnóstico das lesões leucoqueratósica da mucosa oral (VELscope®, Azul de toluidina e Solução de lugol) contribui para uma maior precisão do diagnóstico de displasias nestas lesões quando comparado ao histopatológico. E, identificar os padrões morfológicos destas lesões quando avaliadas por meio da microscopia confocal reflectante. Foram selecionados 30 pacientes, maiores de 18 anos, portadores de lesão clínica compatível com leucoplasia oral triados no ambulatório da disciplina de Estomatologia Clínica da Faculdade de Odontologia da Universidade de São Paulo e que precisavam ser submetidos à biópsia para o estabelecimento do diagnóstico final. Foram realizados os testes de Azul de Toluidina, Solução de Lugol, VELscope®, microscopia confocal reflectante e posteriormente, a biópsia incisional para obtenção do diagnóstico final. Os pacientes incluídos possuíam média de idade 60,66 anos, sendo 70% (21/30) do gênero feminino e 30% (9/30) do gênero masculino. O tabagismo foi relatado por 16,7% (5/30) dos pacientes, sendo 60% (3/5) homens. A associação do tabagismo e etilismo foi relatada em 10% (3/30) dos pacientes, o tabagismo isoladamente por 6,6% (2/30) e o de etilismo por 3,3%(1/30). A associação dos hábitos e o etilismo isolado foram relatados somente por homens. Enquanto que o hábito de tabagismo isolado foi relatado somente por mulheres. Com o uso do VELscope® todas as lesões apresentaram perda da fluorescência tecidual sendo, portanto todas positivas para este método. Com a Solução de Lugol, 100% das lesões não coraram, sendo portanto positivas para este método. O exame histopatológico permitiu o diagnóstico de 30% (9/30) casos de carcinoma epidermoide, 10% (3/30) de neoplasia intraepitelial, 20% (6/30) de líquen plano oral e 40% (12/30) de líquen simple crônico oral. Para o uso do VELscope® e do Lugol foi observada uma sensibilidade de 100% e uma especificidade de 50%.Para o Azul de Toluidina foi observada uma sensibilidade de 63,15%- 66,66% e especificidade de 75,67%-82,35%.Na Microscopia Confocal Reflectante foram definidos padrões para os quatro diferentes diagnósticos observados. Os métodos auxiliares de diagnóstico por cromoscopia e fluorescência de mucosa se mostraram eficientes no auxílio da delimitação da extensão da lesão e a Microscopia Confocal Reflectante permitiu a visualização de padrões morfológicos das lesões brancas de forma não invasiva. A utilização da Microscopia Confocal Reflectante permitiu também a determinação de padrões morfológicos para o carcinoma epidermoide, a neoplasia intraepitelial, o líquen plano oral e o líquen simples crônico oral e se mostrou eficiente quando comparada ao exame histopatológico. / Cancer of the oral mucosa is a public health problem, with higher incidence in men above 50 years. One of the earliest manifestations of cancer of the oral mucosa lesions are leukokeratosis. The inhomogeneous clinical aspect and the larger size of 200mm2 in non-keratinized mucosa as the floor of the mouth and constipation of the tongue, are aspects that imply the possibility of evolution of the lesion. The difficulty of diagnosis of early lesions is in the selection of the site to be biopsied primarily against large and heterogeneous lesions. The objective of this research is to evaluate the use of clinical examination along with diagnostic aids leucoqueratósica of oral lesions (VELscope ®, Toluidine blue and Lugol solution) methods contributes to greater accuracy of diagnosis of dysplasia in these lesions when compared the histopathological. And identify the morphological patterns of these lesions when evaluated by reflectance confocal microscopy. 30 patients older than 18 years, with clinical lesion compatible with oral leukoplakia screened in the outpatient discipline of Clinical Dentistry, Faculty of Dentistry, University of São Paulo and that needed to be biopsied to establish the final diagnosis were selected. Tests toluidine blue, Lugol\'s solution, VELscope ®, reflectance confocal microscopy (RCM) and subsequently, incisional biopsy to obtain the final diagnosis were performed. Patients enrolled had a mean age 60.66 years, 70% (21/30) were female and 30% (9/30) were male. Smoking was reported by 16.7% (5/30) of patients, 60% (3/5) homens.A association of smoking and alcohol use was reported in 10% (3/30) of patients, smoking alone by 6.6% (2/30) and of alcoholism by 3.3% (1/30). The association of habits and alcoholism alone were reported by men only. While the habit of smoking alone was reported by women only. Using the VELscope ® all lesions showed loss of tissue fluorescence, so being all positive for this method. With Lugol\'s solution, 100% of the lesions did not stain, thus being positive for this method. Histopathological examination allowed the diagnosis of 30% (9/30) cases of squamous cell carcinoma, 10% (3/30) of intraepithelial neoplasia, 20% (6/30) of oral lichen planus and 40% (12/30) chronic oral lichen simple. For the use of Lugol VELscope ® and a sensitivity of 100% and a specificity of 50% was observed for the toluidine blue a sensitivity of 63.15%- 66.66% was observed and a specificity of 75.67% - 82.35%. Confocal Microscopy In reflective patterns observed for the four different diagnoses were defined. Auxiliary diagnostic methods chromoscopy and fluorescence mucosa were effective in aiding the delimitation of the extent of injury and Reflectance Confocal Microscopy allowed the visualization of morphological patterns of white lesions noninvasively. Use the Reflectance Confocal Microscopy also allowed the determination of morphological patterns to epidermoid carcinoma, intraepithelial neoplasia, oral lichen planus and lichen simplex chronic oral and proved efficient when compared to histopathology.
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Gerenciamento ágil de projetos: proposta e avaliação de método para gestão de escopo e tempo / Agile project management: proposal and evaluation of a method for scope and time management

Edivandro Carlos Conforto 22 June 2009 (has links)
A demanda crescente por produtos inovadores desafia as práticas e métodos consagrados de gerenciamento de projetos. Uma das respostas foi o surgimento da abordagem do gerenciamento ágil de projetos (GAP). Essa abordagem, inicialmente aplicada na área de software, está embasada em um conjunto de princípios que buscam simplificar o processo de gestão, tornando-o mais flexível e auto-gerido. Seu enfoque está no aprendizado contínuo por meio de iterações constantes e entregas em tempo reduzido, possibilitando assim, agregar valor em ambientes dinâmicos de negócio. No entanto, existe uma lacuna nessa teoria quanto à aplicação desses princípios no desenvolvimento de novos produtos, principalmente os que envolvem hardware. O tema do trabalho é investigar a aplicação prática desses princípios no desenvolvimento de novos produtos. Para tal, foi adotada a seguinte estratégia: desenvolver, implantar e avaliar um método para planejamento e controle de escopo e tempo utilizando como base um conjunto de princípios do gerenciamento ágil de projetos. O método desenvolvido foi intitulado IVPM2 (Iterative and Visual Project Management Method) e sua criação deu-se por meio do extensivo estudo da literatura sobre GAP combinado com uma pesquisa-ação pura realizada em duas empresas de base tecnológica da região de São Carlos, nomeadas Empresa A e Empresa B. O desenvolvimento e implantação do método ocorreu simultaneamente e contou com a participação dos profissionais dessas empresas, considerando dois cenários distintos. Na empresa A, o IVPM2 foi implantado em um único projeto piloto, de longa duração e com maior complexidade e grau de inovação. Na empresa B o método foi testado em um ambiente multiprojetos (7 projetos) com menor duração e complexidade. Para avaliação do IVPM2 foi utilizada estatística descritiva a partir da análise de dados qualitativos e quantitativos, coletados a partir da aplicação de questionários, entrevistas e análise de documentos. O objetivo foi responder ao problema central de pesquisa e as duas perguntas específicas que guiaram este estudo. O problema central dessa pesquisa foi descrito como: É possível aplicar os princípios do GAP para o planejamento e controle de projetos de produtos inovadores? E, consequentemente as questões específicas consideradas nesse estudo: Q1) O IVPM2 adere aos princípios da abordagem de gerenciamento ágil de projetos? Q2) O IVPM2 trouxe benefícios para a gestão de projetos das empresas? Os resultados apontaram evidências da presença de alguns princípios do GAP no IVPM2, classificando-o como um método ágil. Além disso, o IVPM2 foi capaz de proporcionar vários benefícios para a gestão de projetos de desenvolvimento de novos produtos em ambas as empresas estudadas. Contribuiu também, para a melhoria de outros aspectos da gestão de projetos não tratados diretamente nesse estudo. As evidências coletadas durante a pesquisa, portanto, indicaram diversos benefícios a partir da combinação de princípios do GAP com técnicas tradicionais de gestão de projetos e um software. São indícios de que é possível aplicar os princípios dessa teoria do GAP no planejamento e controle de projetos de desenvolvimento de produtos inovadores inseridos em ambientes dinâmicos de negócio. Por fim, o estudo aponta a necessidade de aprimorar as análises conduzidas e o próprio IVPM2 para aplicação e validação em outras empresas e ambientes de projeto. / The high demand for innovative products has been treated as a challenge for the adoption of traditional project management (PM) practices and methods, specially those ones developed in turbulent and complex business environments. Recently, an alternative approach to deal with these challenges emerged. This approach, entitled Agile Project Management (APM), firstly applied in the software development area, is based on a set of principles which has the purpose to keep the management process as simple as possible, becoming more flexible and self-manageable. By focusing on continuous learning using constant iterations and rapid value deliverable driven, APM aims to improve the results for clients in face of turbulent business environment. However, there is lack on the literature regarding APM principles application in new product development (NPD) projects. The aim of this research is to investigate this issue and the practical application of those principles to NPD projects, developed under turbulent and innovative business environments. To achieve this goal the following strategy was adopted: develop, implement and evaluate a method for planning and controlling scope and time. It was based on a set of principles extracted from the APM literature. The method developed was entitled IVPM2 (Iterative and Visual Project Management Method) and its creation comprised an extensive literature review combined with a pure action-research methodology carried out in two small technology-based companies from the São Carlos technological pole. The companies were called Company A and Company B, and the IVPM2 development, implementation and evaluation activities occurred simultaneously in both companies, considering two distinct scenarios. In the company A the IVPM2 was implemented in a single long term project, with a high level of complexity and innovation. In the company B the IVPM2 was implemented in more than one project (a total of 7 projects) with less complexity and innovation aspects. In order to evaluate the IVPM2 adherence and contribution to project management a statistic descriptive approach was applied using qualitative and quantitative data. The data was collected by questionnaire, interviews and document analysis. The main purpose of this evaluation was to respond the central research problem and the specific research questions. The central research problem was described as: Is it possible to apply APM principles for planning and controlling innovative product projects? Consequently, the specific research questions considered after the method implementation were: RQ1) Did IVPM2 adhere to APM principles? RQ2) Did IVPM2 contribute to enhance project management process in the companies under study? The results showed many evidences of the presence of APM principles in the IVPM2 as stated in the literature. Moreover, the IVPM2 was capable to enhance many aspects of project management process of new product development in both companies studied. It also contributed to improve other aspects not directly addressed in the current research. Finally, the evidences collected during the research have indicated many benefits by combining principles from APM approach with traditional PM techniques and a PM software to support project management. This result is important to consider the applicability and viability of APM principles application to NPD projects in turbulent, innovative and complex business environments. Finally, this study has presented many indications of the need to explore this theme and improve the analysis and the IVPM2 components in order to implement them in different companies and project contexts.

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