Knowledge characteristics of communities of practice     

Jonathan H?KleinEmail author  N A D?Connell  Edgar?Meyer 《知识管理研究与实践》2005,3(2):106-114

This paper proposes a typology of communities of practice based on their knowledge characteristics. The structure of a community of practice, in terms of knowledge, may tend to the stratified or to the egalitarian. The predominant knowledge activity of the community may be sharing or nurturing. This produces four classes of community of practice. The paper identifies and discusses examples of these classes. It is argued that the class to which a community belongs tends to determine the rapidity with which knowledge within the community evolves and the degree of pluralism, as opposed to homogeneity, that the knowledge exhibits. The paper concludes by discussing some of the implications of the typology for knowledge management practice.  相似文献   

Managing supply chain knowledge-based linkages for improving operational performance     

Marianna?Marra  William?HoEmail author  Carman Ka Man?Lee 《知识管理研究与实践》2016,14(3):256-269

Purpose – This paper aims to explore the role of internal and external knowledge-based linkages across the supply chain in achieving better operational performance. It investigates how knowledge is accumulated, shared, and applied to create organization-specific knowledge resources that increase and sustain the organization’s competitive advantage. Design/methodology/approach – This paper uses a single case study with multiple, embedded units of analysis, and the social network analysis (SNA) to demonstrate the impact of internal and external knowledge-based linkages across multiple tiers in the supply chain on the organizational operational performance. The focal company of the case study is an Italian manufacturer supplying rubber components to European automotive enterprises. Findings – With the aid of the SNA, the internal knowledge-based linkages can be mapped and visualized. We found that the most central nodes having the most connections with other nodes in the linkages are the most crucial members in terms of knowledge exploration and exploitation within the organization. We also revealed that the effective management of external knowledge-based linkages, such as buyer company, competitors, university, suppliers, and subcontractors, can help improve the operational performance. Research limitations/implications – First, our hypothesis was tested on a single case. The analysis of multiple case studies using SNA would provide a deeper understanding of the relationship between the knowledge-based linkages at all levels of the supply chain and the integration of knowledge. Second, the static nature of knowledge flows was studied in this research. Future research could also consider ongoing monitoring of dynamic linkages and the dynamic characteristic of knowledge flows. Originality/value – To the best of our knowledge, the phrase ‘knowledge-based linkages’ has not been used in the literature and there is lack of investigation on the relationship between the management of internal and external knowledge-based linkages and the operational performance. To bridge the knowledge gap, this paper will show the importance of understanding the composition and characteristics of knowledge-based linkages and their knowledge nodes. In addition, this paper will show that effective management of knowledge-based linkages leads to the creation of new knowledge and improves organizations’ operational performance.  相似文献   

Heuristic maximization of the number of spanning trees in regular graphs     

Jacek Wojciechowski  Jaros?aw Arabas 《Journal of The Franklin Institute》2006,343(3):309-325

This paper deals with the problem of finding graphs (directed and undirected) maximizing the number of spanning trees among the regular graphs with the same number of nodes and edges. The approach is based on heuristic algorithms such as k-optimal and evolutionary. The emphasis is rather on checking whether these techniques are applicable to solving extremal graph problems than investigating generic structures of optimal graphs. For this reason circulant graphs, for which computationally effective tree counting formulas exist, are discussed first and then the results extended to cover the class of regular graphs.  相似文献   

A Pragmatic Evaluation of the Theory of Information Ethics     

Mikko?SiponenEmail author 《Ethics and Information Technology》2004,6(4):279-290

It has been argued that moral problems in relation to Information Technology (IT) require new theories of ethics. In recent years, an interesting new theory to address such concerns has been proposed, namely the theory of Information Ethics (IE). Despite the promise of IE, the theory has not enjoyed public discussion. The aim of this paper is to initiate such discussion by critically evaluating the theory of IE.  相似文献   

Effect of Oral Contraceptive Pills on the Blood Serum Enzymes and DNA Damage in Lymphocytes Among Users     

Falaq?Naz  Smita?Jyoti  Rahul  Nishat?Akhtar  Yasir?Hasan?SiddiqueEmail author 《Indian journal of clinical biochemistry : IJCB》2016,31(3):294-301

The continuous use of synthetic hormones as contraceptive pill or hormonal replacement therapy among women is increasing day by day. The widespread use of different formulations as oral contraceptives by women throughout their reproductive cycle has given rise to a serious concern for studying the effects of oral contraceptives on enzymatic profile and DNA damage in peripheral blood lymphocytes among users. The present study was carried out on women taking oral contraceptives. The study was based on the questionnaire having the information of reproductive history, fasting, age, health, nature of menstrual cycle, bleeding and other disease. The profile of the blood serum enzymes i.e. alkaline phosphatase (ALP), gamma glutamyl transferase (GGT), lactate dehydrogenase (LDH), aminotransferases (SGOT and SGPT), serum proteins (albumin and globulin) and DNA damage in lymphocytes was studied among users and non-users. The results of the present study suggest that OCs not only effects enzymatic activity but also results in DNA damage that may vary with the duration of using oral contraceptives. A significant increase in LDH, GGT, SGPT, SGOT, globulin and decrease in ALP as well as albumin was found among users as compared to non-users. The observed DNA damage was more in users as compared to non-users. Hormonal contraceptives seem to exert DNA damage and also have significant effects on blood serum enzymes.  相似文献   

Sampling philosophy of medicine     

Brendan?ClarkeEmail author 《Metascience》2016,25(1):87-90

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The qualities of good experiments     

Adam?MortonEmail author 《Metascience》2016,25(3):443-446

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A sensemaking model of knowledge in organisations: a way of understanding knowledge management and the role of information technologies     

Dubravka?Cecez-KecmanovicEmail author 《知识管理研究与实践》2004,2(3):155-168

The objective of the paper is to demonstrate how a sensemaking model of knowledge enables better and deeper understanding of knowledge management (KM) processes in organisations and the role of information technologies (IT) in these processes. Inspired and informed by a sensemaking view of organisations, the model identifies four types of knowledge, corresponding to four sensemaking levels: the individual, collective, organizational, and cultural. Each knowledge type, as the paper shows, is of different nature and has different characteristics but is constituted and affected by all other knowledge types. An organisation is thus seen as a ‘distributed knowledge system’ composed of numerous instances of these four knowledge types and their dynamic interplay. By drawing from three empirical studies, the paper illustrates how the sensemaking model of knowledge can be applied to investigate different ways companies (try to) manage knowledge and use IT-based systems to improve KM and ultimately company performance. A deeper understanding of these processes through the lens of the model reveals mechanisms and forces underlying KM phenomena that help explain why some processes were successful and others failed. The paper intends to make the following contributions: propose a theoretical framework of knowledge and KM in organizations, which is reasonably comprehensive and empirically grounded and also demonstrate its relevance and usefulness to both researchers and practitioners as they investigate and make sense of specific KM processes and IT applications in practice.  相似文献   

Knowledge society discourse and higher education   总被引：1，自引：0，他引：1  

Jussi V?limaa  David Hoffman 《Higher Education》2008,56(3):265-285

The growing importance of knowledge, research and innovation are changing the social role of universities in the globalized world. One of the most popular concepts used to approach these changes in post-industrial and post-modern societies is the concept of ‘Knowledge Society’. In this paper, we will analyse the roles higher education is expected to play with regard to various knowledge society discourses. We will begin with analyzing the uses of knowledge society as an intellectual device and continue by reflecting on how changes in higher education are related to knowledge society discourses in national, regional and global levels. In the final section we will reflect on current challenges and expectations generated within these discourses for higher education and the implications these expectations have for higher education research.  相似文献   

Learning-based curriculum development     

Claus Nygaard  Thomas H?jlt  Mads Hermansen 《Higher Education》2008,55(1):33-50

This article is written to inspire curriculum developers to centre their efforts on the learning processes of students. It presents a learning-based paradigm for higher education and demonstrates the close relationship between curriculum development and students’ learning processes. The article has three sections: Section “The role of higher education (HE) institutions” presents a discussion of the role of higher education in the knowledge society. Section “Contextual learning” presents the paradigm of contextual learning which we see as a useful foundation for curriculum development. Section “Curriculum development in practice—the BETA course” shows how a particular course in Business Economic Theory and Analysis has been developed using this paradigm. The article will be of interest to all academics interested in students’ learning processes but is especially relevant to those responsible for curriculum development.  相似文献