907 resultados para single-case research design
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"March 1966."
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"June 1965."
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"Draft."
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The main aim of this article is to shed some light on the way in which actor network theory (ANT) might contribute to case research in accounting. The paper will seek to explain some of the theoretical suppositions which are commonly associated with ANT and which have so far made little impact on the accounting literature. At the same time the accounting literature has shown a particular reluctance to engage with the central concept of ANT which Lee and Hassard characterise as the desire to bring together the "human and non-human, social and technical factors in the same analytical view". The article also features a discussion of a research project which used an approach giving emphasis to both humans and objects in order to understand how ``facts'' have come to be settled as they are. In taking such views into the research it is hoped to provide insight into both the detail of accounting as it is practised within organisations and the manner in which human actors and objects of technology may combine to constitute networks within organisations.
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Technological capabilities in Chinese manufacturing have been transformed in the last three decades. However, the extent to which domestic market oriented state owned enterprises (SOEs) have developed their capabilities is not clear. Six SOEs in the automotive, steel and machine tools sectors in Beijing and Tianjin have been studied since the mid-1990s to assess the capability levels attained and the role of external sources and internal efforts in developing them. Aided by government policies, acquisition of technology and their own efforts, the case study companies appear to be broadly following the East Asian late industrialisation model. All six enterprises demonstrate competences in operating established technology, managing investment and making product and process improvements. The evidence suggests that companies without foreign joint venture (JV) collaborations have made more progress in this respect.
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In the developed world we are surrounded by man-made objects, but most people give little thought to the complex processes needed for their design. The design of hand knitting is complex because much of the domain knowledge is tacit. The objective of this thesis is to devise a methodology to help designers to work within design constraints, whilst facilitating creativity. A hybrid solution including computer aided design (CAD) and case based reasoning (CBR) is proposed. The CAD system creates designs using domain-specific rules and these designs are employed for initial seeding of the case base and the management of constraints. CBR reuses the designer's previous experience. The key aspects in the CBR system are measuring the similarity of cases and adapting past solutions to the current problem. Similarity is measured by asking the user to rank the importance of features; the ranks are then used to calculate weights for an algorithm which compares the specifications of designs. A novel adaptation operator called rule difference replay (RDR) is created. When the specifications to a new design is presented, the CAD program uses it to construct a design constituting an approximate solution. The most similar design from the case-base is then retrieved and RDR replays the changes previously made to the retrieved design on the new solution. A measure of solution similarity that can validate subjective success scores is created. Specification similarity can be used as a guide whether to invoke CBR, in a hybrid CAD-CBR system. If the newly resulted design is suffciently similar to a previous design, then CBR is invoked; otherwise CAD is used. The application of RDR to knitwear design has demonstrated the flexibility to overcome deficiencies in rules that try to automate creativity, and has the potential to be applied to other domains such as interior design.
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The way interviews are used in accounting research, and the way this research is written up, suggests that there is only one way to interpret these interviews. This invests the author(s) with great perceptive power and storytelling ability. What if different assumptions are used about how to interpret research, and how to present the ensuing findings? We give an illustration of what this might imply, using the notion of 'reflexivity'. The setting for our illustration concerns a series of interviews with management accountants on the dilemmas they face in their daily work. We apply Alvesson's ideas on how to use metaphors to open up the interpretation of interview accounts. The aim of the paper is to shed a different light on the way interviews can be used and interpreted in accounting research. We assert that allowing for reflexive accounts is likely to require substantially differently written research papers, in which the process of discovery is emphasized. © 2011 Elsevier Ltd.
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Neuroimaging (NI) technologies are having increasing impact in the study of complex cognitive and social processes. In this emerging field of social cognitive neuroscience, a central goal should be to increase the understanding of the interaction between the neurobiology of the individual and the environment in which humans develop and function. The study of sex/gender is often a focus for NI research, and may be motivated by a desire to better understand general developmental principles, mental health problems that show female-male disparities, and gendered differences in society. In order to ensure the maximum possible contribution of NI research to these goals, we draw attention to four key principles—overlap, mosaicism, contingency and entanglement—that have emerged from sex/gender research and that should inform NI research design, analysis and interpretation. We discuss the implications of these principles in the form of constructive guidelines and suggestions for researchers, editors, reviewers and science communicators.
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This research examines links between intimacy and violence within the transference relationship of a three year old boy during intensive psychotherapy. Psychoanalytic clinical findings are used to examine triggers to violence that initially appeared to link with moments of emotional warmth. The research uses a retrospective single case study design. The clinical data cover a period of transition in the child's life from being a 'looked after child' in foster care to being adopted. There was a history of early trauma from neglect and domestic abuse. Clinical process notes from supervised sessions were coded using an adapted grounded theory approach to reveal complex interlinking themes of intimacy, violence, Oedipal issues, control and difficulties regulating affect. Data in this study show how intimacy and violence are linked when there is evidence of a separation between the self and the object of intimacy. Explosive violence is triggered by the threat of loss of the object and the rage is, at times directed towards the object of intimacy. The findings of this study support concepts identified by earlier research in the field about the impact of a lack of maternal containment on innate violence, associated struggles with the Oedipal complex and the impact upon the capacity for symbol formation and thinking. However, the research findings challenge Glasser's (1979) theory of the 'core complex' that suggests that intimacy triggers violence. The results of this research indicate that it is the threat to the loss of intimacy as a result of separation from the object that is the trigger to violence. I believe this study may, in a modest way, further understanding about links between violence and intimacy in human relationships. This may help other child psychotherapists be alert to certain dangers when dealing with violence in the therapy room.
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The purpose of this study was to investigate the nature of the relationship between middle school science learners’ conditions and their developing understandings of climate change. I applied the anthropological theoretical perspective of figured worlds (Holland, Lachicotte, Skinner, & Cain, 1998) to examine learners’ views of themselves and their capacities to act in relation to climate change. My overarching research question was: How are middle school science learners’ figured worlds of climate change related to the conditions in which they are embedded? I used a descriptive single-case study design to examine the climate change ideas of eight purposefully selected 6th grade science learners. Data sources included: classroom observations, curriculum documents, interviews, focus groups, and written assessments and artifacts, including learners’ self- generated drawings. I identified six analytic lenses with which to explore the data. Insights from the application of these analytic lenses provided information about the elements of participants’ climate change stories, which I reported through the use of a storytelling heuristic. I then synthesized elements of participants’ collective climate change story, which provided an “entrance” (Kitchell, Hannan, & Kempton, 2000, p. 96) into their figured world of climate change. Aspects of learners’ conditions—such as their worlds of school, technology and media use, and family—appeared to shape their figured world of climate change. Within their figured world of climate change, learners saw themselves—individually and as members of groups—as inhabiting a variety of climate change identities, some of which were in conflict with each other. I posited that learners’ enactment of these identities – or the ways in which they expressed their climate change agency – had the potential to reshape or reinforce their conditions. Thus, learners’ figured worlds of climate change might be considered “spaces of authoring” (Holland et al., 1998, p. 45) with potential for inciting social and environmental change. The nature of such change would hinge on the extent to which these nascent climate change identities become salient for these early adolescent learners through their continued climate change learning experiences. Implications for policy, curriculum and instruction, and science education research related to climate change education are presented.
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Objetivo: Este estudo avaliou os efeitos da implementação de um programa de autorregulação no aumento da autonomia de um aluno com Perturbação do Espetro do Autismo, em contexto de sala de aula, no segmento letivo de Português. Método: A metodologia adotada foi quantitativa e experimental, num desenho de investigação de sujeito único, dividido em três fases de investigação: linha de base, início do programa de intervenção e um mês depois. Os registos dos vídeos, e a construção e implementação do programa de intervenção em conjunto com a professora, tiveram como base os princípios e procedimentos da Análise Comportamental Aplica. Resultados / Discussão: Após a implementação do programa de intervenção observou-se um acentuado aumento do envolvimento do aluno e das suas respostas às instruções académicas da professora, essencialmente ao nível das instruções de grupo que, na linha de base, apresentavam valores baixos. A eficácia da intervenção reforça a importância de se capacitar professores na aplicação de técnicas comportamentais dado que, neste estudo e à semelhança de outros, a professora aprendeu rapidamente a implementar práticas que facilmente se ajustam à sala de aula, levando à melhoria sistemática do comportamento do aluno com PEA numa sala de aula inclusiva.
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Context: The link between C-reactive protein (CRP) and adiposity deserves to be further explored considering the controversial diabetogenic role of CRP. Objective: We explored the potential causal role of CRP on measures of adiposity. Design: We used a Mendelian randomization approach with the CRP and LEPR genes as instrumental variables in a cross-sectional Caucasian population-based study comprising 2526 men and 2836 women. Adiposity was measured using body mass index (BMI), fat and lean mass estimated by bioelectrical impedance, and waist circumference. Results: Log-transformed CRP explained by the rs7553007 SNP tagging the CRP gene was significantly associated with BMI (regression coefficient: 1.22 [0.18;2.25], P=0.02) and fat mass (2.67 [0.65;4.68], P=0.01), but not with lean mass in women, whereas no association was found in men. Log-transformed CRP explained by the rs1805096 LEPR SNP was also positively associated, although not significantly, with BMI or fat mass. The combined CRP-LEPR instrument explained 2.24% and 0.77% of CRP variance in women and in men, respectively. Log-transformed CRP explained by this combined instrument was significantly associated with BMI (0.98 [0.32;1.63], P=0.004), fat mass (2.07 [0.79;3.34], P=0.001) and waist (2.09 [0.39;3.78], P=0.01) in women, but not in men. Conclusion: Our data suggest that CRP is causally and positively related to BMI in women, and that this is mainly due to fat mass. Results on the combined CRP-LEPR instrument suggest that leptin may play a role in the causal association between CRP and adiposity in women. Results in men were not significant.
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This research analyzes e-tailer business model formulation and the role of information technology in enabling value creation from the point of view of an e-tailer. The thesis explains the value creation dynamics and the components of an e-tailer business model and further illustrates how information technology enables value creation throughout the different components of e-tailer business models. The theoretical part of the thesis describes the sources of value creation in virtual markets through evaluating the explanatory value of traditional strategic management theories. The theoretical part advances to present an integrated model of the value creation mechanisms in the virtual markets and further describes the components of an e-tailer business model. The role of information technology in e-tailer business models are represented by illustrating how it is able to add value throughout the activities and processes of the e-tailer business model. The empirical descriptive qualitative single-case research focuses on demonstrating how a global retailer of consumer goods operates the different components in its business model. The findings indicate that information technology plays a considerable role in all the components of an e-tailer business model and should not be treated solely as a supporting business function, but rather as one of the most valuable assets in enabling successful e-tailing operations.