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Participação acionária em empresas listadas na BM&FBOVESPA em 2018: um estudo de redes / Equity interest in companies listed on the BM&FBOVESPA in 2018: a study of networksCaroline Alvarenga de Carvalho 08 August 2018 (has links)
A estrutura do controle de grandes empresas interfere na competição de mercado, bem como na estabilidade financeira deste. Estudos internacionais pesquisaram o controle das empresas em seus países, outros expandiram tal visão para as empresas transnacionais, realizando uma análise a nível mundial, ambas com o objetivo de descrever a disposição dos principais controladores em uma estrutura de rede. Dessa maneira, o problema central deste trabalho consiste em verificar a disposição dos acionistas de grandes empresas no Brasil e, para isso, tem como objetivo principal analisar a rede de controle formada por acionistas e empresas listadas na BM&FBOVESPA no ano de 2018 com uso da técnica de Redes. Os dados utilizados para elaborar a rede foram obtidos através do Economatica. Como resultado, foi observada uma rede com uma componente gigante composta por 726 atores e uma rede de acionistas com baixa densidade, alta modularidade e caminho médio indicando características de rede mundo pequeno, com atores centrais de grande influência na estrutura. Os resultados contribuem para a compreensão da atual estrutura de participação no mercado acionário brasileiro, pois evidencia e quantifica as relações entre acionistas e empresas. Espera-se que este estudo colabore para novas investigações acerca das particularidades do mercado financeiro brasileiro. / The structure of the control of large companies interferes in the market competition, as well as in the financial stability of this one. International studies have researched corporate control in their countries, others have expanded such a view to transnational corporations by conducting a worldwide review, both with the purpose of describing the disposition of the major controllers in a network structure. Thus, the main problem of this work is to verify the disposition of the shareholders of large companies in Brazil and, for this purpose, its main objective is to analyze the control network formed by shareholders and companies listed on BM&FBOVESPA in 2018 using Networks. The data used to elaborate the network were obtained from Economatica. As a result, it was observed a network with a giant component composed of 726 actors, with low density, high modularity and medium path indicating network characteristics small world, with central actors of great influence in the structure. The results contribute to the understanding of the current structure of participation in the Brazilian stock market, since it evidences and quantifies the relations between shareholders and companies. It is hoped that this study will contribute to further research on the particularities of the Brazilian financial market.
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The silence of the lamps : visibility, agency and artistic objects in the play production processStephens, Louise January 2016 (has links)
This thesis is a case study which looks at the creation of two theatre productions. Using the literature of Actor-Network Theory as a methodological provocation, it analyses the processes by which networks of actors created these theatre pieces with particular attention to where agency was observed. Through data gathered through observing material interactions, the thesis develops the concept of the (play)text: an object that is an expression of the ideas of the text, but is not the text itself – rather, a bricolage of ‘translations' of a piece of written and rehearsed work bound together by time and combined action. Conceiving of the eventual product – the (play)text in performance – as an example of the ANT concept of an agencement, a network of different people and objects working together to maintain a stable construction, but one which perpetually refines and redefines each of its component parts – this thesis proposes that the (play)text is an example of a dynamic and fractional artistic object, stabilised only briefly in the moments of its performance. Examining the theatre production process in this way contributes to ANT literature by providing specific examples of an artistic object created materially and agentively; it also highlights the limitations of the ways in which theatre has been used as a metaphor within Organisation Studies. Finally, it contributes to work on process change in showing an object which is, though it appears constantly improvisational and changing in its form, stabilised by material interactions.
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Technological uncertainties and popular cultureHitchin, Linda January 2002 (has links)
This thesis is an inquiry into possibilities and problems of a sociology of translation. Beginning with a recognition that actor network theory represents a sociological account of social life premised upon on recognition of multiple ontologies, interruptions and translations, the thesis proceeds to examine problems of interpretation and representation inherent in these accounts. Tensions between sociological interpretation and social life as lived are examined by comparing representation of nonhuman agency in both an actor-network and a science fiction study of doors. The power identified in each approach varies from point making to lying. A case is made for considering fictional storytelling as sociology and hence, the sociological value of lying. It is by close examination of a fictional story that this study aims to contribute to a sociology of translation. The greater part of the thesis comprises an ethnographic study of a televised children's story. Methodological issues in ethnography are addressed and a case is made for a complicit and multi-site ethnography of story. The ethnography is represented in two particular forms. Firstly, and unusually, story is treated as a Storyworld available for ethnographic study. An actor network ethnography of this Storyworld reveals sociologically useful similarities and differences between fictional Storyworld and contemporary, social life. Secondly, story is taken as a product, a broadcast television series of six programmes. An ethnography of story production is undertaken that focuses attention on production performances, hidden storytellers and politics of authorship. Story is revealed as an unfinished project. A prominent aspect of this thesis is a recognition that fictional storytelling both liberates and constrains story possibilities. This thesis concludes that, in addressing critically important tensions in sociological representation, fictional stories should be included in sociological literature as studies in their own right.
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Sustainability of a web 2.0 application from the perspective of Actor Network Theory : The case of LibguideKoczkas, Andreas, Arasteh, Sina January 2013 (has links)
This thesis aims to focus on relational controversy about the causes behind the inconsistency in number of students who use a Web 2.0 application named "LibGuide" inside the Linnaeus University and the attempts of program coordinator to develop certain strategies to perform a better use of it in a particular department of Healthcare. The nature of the problem will be discussed, suggesting that how the these strategies maintained a high significant of use in that department. The research foregoes, as it uses a process of translation which are the moments of struggles by a program coordinator to impose itself by its role to the definition of the situation. The research suggests a network within which the series of processes and interrelation of the sociotechnical role of each member is drawn and allocated.
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Hörbarhet i praktiken : En Actor Network analys av arbetet kring hörbarhetBredemo, Fredrik January 2015 (has links)
Abstrakt Tv-branschen är en jätteindustri som styrs av ett fåtal stora sändningsnätverk. I Sverige är den största distributören Sveriges Television (SVT) och på grund av detta så är sannolikheten att personer som arbetar inom ljud i Sverige någon gång kommer att arbeta på projekt för dem väldigt hög. I min uppsats har jag utfört en Actor Network-analys av empiriska studier jag utfört på postproduktionsbolaget Europa Sound and Vision. Med hjälp av analysen vill jag undersöka vad begreppet ”god hörbarhet” består av och därmed kunna definiera uttrycket tydligare. Jag jämför sedan SVTs syn på hörbarhet med den jag fått fram genom dessa studier för att till slut ändra på den nuvarande synen och på det regelverk SVT har. / Abstract The television industry is a huge industry that is governed by a few big broadcasting networks. The biggest distributer and producer of television in Sweden is Sveriges Television (SVT) and everyone working with sound will, more likely than not, work for them in a project. In this study I’ve analyzed the results of two months of empirical work, I’ve identified the actors that make up the network “God hörbarhet” (good audibility) and the reason this is interesting is for determining a more solid definition for the term “good audibility”. I’ve then put this more solid definition up against SVT’s loose definition, this only to expand on their current system and delivery specifications.
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Pyramiding: Efficient search for rare subjectsvon Hippel, Eric, Franke, Nikolaus, Prügl, Reinhard Wilhelm January 2009 (has links) (PDF)
The need to economically identify rare subjects within large, poorly-mapped search spaces is a frequently-encountered problem for social scientists and managers. It is notoriously difficult, for example, to identify "the best new CEO for our company," or the "best three lead users to participate in our product development project." Mass screening of entire populations or samples becomes steadily more expensive as the number of acceptable solutions within the search space becomes rarer.
The search strategy of "pyramiding" is a potential solution to this problem under many conditions. Pyramiding is a search process based upon the idea that people with a strong interest in a topic or field tend to know people more expert than themselves. In this paper we report upon four experiments empirically exploring the efficiency of pyramiding searches relative to mass screening. We find that pyramiding on average identified the most expert individual in a group on a specific topic with only 28.4% of the group interviewed - a great efficiency gain relative to mass screening. Further, pyramiding identified one of the top 3 experts in a population after interviewing only
15.9% of the group on average. We discuss conditions under which the pyramiding search method is likely to be efficient relative to screening.
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Analyse communicationnelle des systèmes d'information dans le secteur de la santé (2000-2012) : l'exemple de l'implantation de deux logiciels dans les pratiques de la clinique mutualiste La Sagesse de Rennes / Communicational analysis of information systems in the health sector (2000-2012) : the example of these implementation of two programs in clinical practice of mutual wisdom La Sagesse RennesNdiaye, Diarra 25 January 2013 (has links)
Nous présenterons dans le cadre de cette thèse les résultats d’une étude qualitative basée sur deux logiciels (HôpitalManager et CURSUS 3), implantés à la clinique La Sagesse de Rennes ; étude qui a pour objectif, de souligner les enjeuxcommunicationnels que pose ces outils dans les pratiques cliniques. Ces outils sont considérés aujourd’hui comme des dispositifs de modernisation, de rationalisation, de changementdes pratiques, et des interactions entre le patient, le médecin et les dispensateurs de soins. Ainsi, notre objectif est donc demontrer qu’en plus des enjeux techniques, managériaux, politiques et économiques qui sont identifiés par de nombreuxchercheurs, il existe des défis en termes de communication.Les interrogations que nous soulèverons du point de vue de la recherche en Science de l’Information et de la Communication, autour de ces processus de rationalisation, s’inscriront dans une problématique de changementorganisationnel, de circulation d’information ou encore de normalisation des pratiques professionnelles. Dans cespréoccupations, la technologie déduit tout son raisonnement à partir d’une seule prémisse, celle de la performativité dans les organisations. Ce que nous retenons des travaux d’Orlikowski, réside dans le fait que ce qui compte pour évaluer l’efficacité et la performance d’une technologie n’est pas l’artefact technologique, mais c’est la technologie en pratique(Orlikowski, 2000). Ainsi, notre objectif est de montrer que le discours médico-intégratif, est un énoncé performatif quirepose sur des modalités de communication / We present in this thesis the results of a qualitative study based on two programs (Hopital Manager and CURSUS 3),located at the clinic La Sagesse of Rennes; this study aims to emphasize the communicative challenges posed by thesetools in clinical practice.Those tools are now considered as devices for modernization, rationalization, change of practices, and interactions between the patient, the doctor and caregivers. Thus, our goal is to show that in addition to technical issues, managerial, political and economic factors that are identified by many researchers, they are also challenges in terms of communication.The questions we will raise, from the point of view of research in Information Sciences and Communication, deal with rationalization process, and will be part of an issue related to organizational change, information traffic or standardization practices. Considering these concerns, technology deduces any reasoning from one premise, the one of performativity in organizations. What we choose to select in Orlikowski’s work has to do with the fact that what matters, in order to evaluate the effectiveness and performance of technology, is not technological artifact, but technologies in practice (Orlikowski, 2000). Thus, our goal is to show that the integrative medical discourse is a performative utterance based on communication patterns
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The Implementation of Business Sustainability 3.0 in a New Venture : A Single Case Study Through the Lense of the Actor-Network TheoryPapenbroock, Wibke, Österberg, Emmy January 2017 (has links)
BACKGROUND. Researcher have identified a relevance for profit-seeking new ventures to implement “Business Sustainability 3.0” standards in order to face current social and environmental challenges, like scarcity of resources. Research, moreover, suggest that new ventures would me more open to implementing the standards of “Business Sustainability 3.0”. The authors of this thesis initiate this field of research in the context of a new venture in the form of a single case study. PURPOSE. The purpose of this study is to explore the implementation process of “Business Sustainability 3.0” standards in a new venture. The aim is to identify challenges in the implementation process and how they can be approached by new ventures. METHODOLOGY. The implementation process of “Business Sustainability 3.0” standards was researched based on a single case study in a new venture striving to achieve the standards. The authors conducted a semi-structure interview with a sustainability manager within the company. The empirical data was analyzed based on the translation process of the Actor-Network Theory. RESULTS. The authors conclude that a new venture cope with “Business Sustainability 3.0” by making use of being a new venture founded with a specific purpose and by addressing challenges that appear during the implementation process. Two measures are suggested to support addressing these challenges: striving for transparency and internalizing the standards for the company’s compartments. The Actor-Network translation process is considered to be a suitable method when analyzing the integration process of “Business Sustainability 3.0”.
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Collaboration on the front-line : to what extent do organisations work together to provide housing services for military veterans in Scotland?Robinson, C. L. January 2016 (has links)
This study examines collaborative working in the provision of housing services, explored by focusing on military veterans as the client group. Military veterans are recognised as being over represented in the homeless population and they are one of the few employment groups who usually have to give up their homes when they give up their employment. Therefore, access to services that assist them into housing are likely to be an important resource for them. This study adopted a case study approach and an online survey to obtain empirical evidence to explore the extent of organisations working together to provide housing services for military veterans in Scotland. The work was underpinned by theoretical frameworks in governance, networks and partnership working. Governance theory provides an understanding of how state control impacts on organisational relationships and the fragmentation of public service delivery, with the associated drivers for collaborative working to provide cohesion into the system. Studying governance focuses attention on the blurring of organisational boundaries, which both enable and restrict partnership working. It requires actors to be prepared to take risks beyond their institutional boundaries to work with others; this is a barrier for some practitioners who do not have the remit to take such risks. The findings suggest veterans experience problems at the points of interaction with generic public service providers. Also, there is a perception that this group may have, or develop, post-traumatic stress disorder (PTSD). This perception may be over emphasised, however social housing providers are concerned about supporting this group in social housing tenancies. Three themes emerged from the study. Firstly, coherent, rational and strategic drivers for collaborative working exist and are clear. Secondly, the obstacles to this rational objective of collaborative working include differing organisational objectives and ethos and the effects of state control on different types of organisations. Actors have to overcome these barriers to work with others, in networks, in order to provide services resulting in messy and patchy delivery. Finally, service users are left to negotiate the resulting disjointed and chaotic service provision. The thesis concludes that organisational collaborations to house military veterans are relatively new, and the extent of this activity is likely to be low throughout Scotland. Whilst collaborative working does improve housing outcomes for some military veterans, as an overall strategy it fails to deliver for all.
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Breakdowns, overlaps and ambivalence : an Actor-network theory study of the Swedish preschool curriculumMoberg, Emilie January 2017 (has links)
Within the discipline of early childhood education research, the present study will focus on the Swedish preschool curriculum text, using a sociomaterial approach offered by Actor-network theory (ANT). The study adopts ethnographic methods, foremost participant observations in a preschool, to generate knowledge of how the curriculum text comes to act through moments in the everyday preschool work. The doctoral thesis consists of three research papers. Research paper I explores the delayed access to the field through the occurrence of a water leak. Through the focus on the value of breakdowns in ANT, the water leak becomes an empirical event where the researcher is allowed to learn about the mundane objects and practices making a preschool work, such as schedules and lists. Research paper II reports on the case of the curriculum concept of children´s interests (Moberg, 2017). Here, empirical moments are highlighted where the curriculum concept of children´s interests is defined and made to act by children and materialities. Finally, research paper III (Moberg, in press) reports on the case of an evaluation meeting where an evaluation text is to be produced. Here, the curriculum text is highlighted as vulnerable in its inability of embracing pedagogical dilemmas and ambivalence in the preschool everyday work. / <p>At the time of the doctoral defense, the following papers were unpublished and had a status as follows: Paper 1: Manuscript. Paper 3: Accepted.</p>
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