128 resultados para Philosophy of set theory


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This thesis employs the philosophy of critical realism to develop an innovative theory and methodology for the study of international power transitions. The theory is then applied in a future-oriented case analysis to enrich explanation and understanding of a major real world policy challenge - the rise of China.

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This paper reports an evaluation of an innovative university-school partnership in which teacher practitioners work as university lecturers in a regional Australian pre-service teacher education programme. The philosophy of this programme encompasses authentic partnerships between universities, schools and other industry employers. The study was motivated by an interest in understanding the experiences and outcomes for the teacher practitioners and in documenting their experiences. Staff members who are currently on contract as university lecturers as well as teachers who have completed secondments and returned to school settings are surveyed. This paper focuses on suggestions to improve the partnership and discusses future directions for the partnership.

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The methodology of grounded theory has great potential to contribute to our understanding of leadership within particular substantive contexts. However, our notions of good science might constrain these contributions. We argue that for grounded theorists a tension might exist between a desire to create a contextualised theory of leadership and a desire for scientifically justified issues of validity and generalizable theory. We also explore how the outcome of grounded theory research can create a dissonance between theories that resonate with the reality they are designed to explore, and the theories that resonate with a particular yet dominant 'scientific' approach in the field of leadership studies - the philosophy of science commonly known as positivism. We examine the opportunities provided by an alternative philosophy of science, that of critical realism. We explore how conducting grounded theory research informed by critical realism might strengthen researchers' confidence to place emphasis on an understanding and explanation of contextualised leadership as a scientific goal, rather than the scientific goal of generalization through empirical replication. Two published accounts of grounded theory are critiqued candidly to help emphasise our arguments. We conclude by suggesting how critical realism can help shape and enhance grounded theory research into the phenomenon of leadership. © 2010.

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This paper critically analyzes the use of Absorptive Capacity (ACAP) theory in information systems (IS) research. Drawing on a comprehensive review of the evolution of ACAP theory and models for the construct, we empirically investigate a number of ACAP-related papers published in reputable IS journals. The analysis involves four main areas: 1) summary analysis of ACAP in IS papers; 2) domains of ACAP usage; 3) analysis of hypotheses to show how ACAP is being used to explain various organizational phenomena in IS research; and 4) analysis of measures to gain insights into the operationalization of ACAP in IS research. This research advocates that organization-level ACAP should be applied as the dependent variable in studying the impact of IS. Furthermore, ACAP should be conceptualized as a “capability,” rather than an “asset.” This paper contributes to IS and ACAP studies by investigating and clearly specifying the utility of ACAP in IS research.

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The purpose of this paper is to challenge models of workplace learning that seek to isolate or manipulate a limited set of features to increase the probability of learning. Such models typically attribute learning (or its absence) to individual engagement, manager expectations or organizational affordances and are therefore at least implicitly causative. In contrast, we discuss the contributions of complexity theory principles such as emergence and novelty that suggest that learning work is more a creative and opportunistic process that emerges from contextualized interactional understandings among actors. Using qualitative case study methods, we discuss the experiences of workers in two organizations asked to ‘act up’ in their managers’ role to ensure work continuity. We believe the differences in how workers take up these opportunities result from a complex combination of situational factors that generate invitational patterns signalled from and by various understandings and interactions among actors doing collective work. Rather than a deficit view of learning that needs fixing, an emergent model of learning work suggests that learning develops as a collective generative endeavour from changing patterns of interactional understandings with others. This re‐positioning recognizes that although invitational qualities cannot be deterministically predicted, paying attention to the patterns of cues and signals created from actors interacting together can condition ways of understandings to expand what is possible when work practices also become learning practices.

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A tourism consumption system (TCS) is defined as the setof related travel thoughts, decisions, and behaviors by a discretionarytraveler prior to, during, and following a trip. Thecentral proposition of a theory of TCS is that the thoughts,decisions, and behaviors regarding one activity influence thethoughts, decisions, and behaviors for a number of other activities.Using exit interview travel data and quick clusteringanalysis, this article empirically examines seven basic TCSpropositions pertaining to decisions made once the destinationhas been selected. The findings support and extend thebasic propositions specifically indicating clear patterns inthe behaviors of visitors to Prince Edward Island, Canada.The authors conclude by recommending that this approach isuseful for tourism marketers and practitioners in general.Suggestions are provided for analyzing TCS to increase theeffectiveness of tourism marketing strategies.

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Through Voltaire’s novella Candide, this essay examines the differences between a scientific and a religious mindset and the consequences of poor decision-making when a political leader has a religious mindset that he misapplies to fundamentally scientific questions. By analyzing various decisions that President Bush has made, it is argued that he has a religious mindset that has resulted in several fallacious choices of extreme import, yielding considerable losses. As such, a decision-maker with power should be able to distinguish questions best answered with a scientific mindset from those that are in the realm of philosophy or religion and apply a scientific mindset to the former. A scientific mindset formulates a theory that yields testable propositions, it acquires data and uses that to evaluate the verity of the theory. As the data contradict the theory’s predictions, the theory is adjusted. The religious mindset proffers certain explanations but then holds steadfastly to them. It ignores contrary evidence, does not adjust its tenets, or alter its prescribed behaviors, attacks the integrity of those who espouse contrarian viewpoints, and commits logical falla- cies, such as inverting the causative relationship.

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This paper addresses the task of time-separated aerial image registration. The ability to solve this problem accurately and reliably is important for a variety of subsequent image understanding applications. The principal challenge lies in the extent and nature of transient appearance variation that a land area can undergo, such as that caused by the change under illumination conditions, seasonal variations, or the occlusion by non-persistent objects (people, cars). Our work introduces several major novelties (i) unlike previous work on aerial image registration, we approach the problem using a set-based paradigm; (ii) we show how image space local, pair-wise constraints can be used to enforce a globally good registration using a constraints graph structure; (iii) we show how a simple holistic representation derived from raw aerial images can be used as a basic building block of the constraints graph in a manner which achieves both high registration accuracy and speed; (iv) lastly, we introduce a new and, to the best of our knowledge, the only data corpus suitable for the evaluation of set-based aerial image registration algorithms. Using this data set, we demonstrate (i) that the proposed method outperforms the state-of-the-art for pair-wise registration already, achieving greater accuracy and reliability, while at the same time reducing the computational cost of the task and (ii) that the increase in the number of available images in a set consistently reduces the average registration error, with a major difference already for a single additional image.