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441.
This paper explores the organisation of social interaction amongst participants ‘in’ Virtual Reality. Despite the wide‐ranging sociological interest in ‘virtual’ technologies, there is rather little detailed sociological investigation of user experiences of the virtual technology par excellence, namely multi‐user Virtual Reality. Interestingly the discourses that underpin discussions of more mundane virtual technologies (eg email, the Web, mobile phones, etc.) tend to draw on design visions for Virtual Reality, such as the opportunities for social life freed from the constraints of the physical body. This paper contributes to a growing number of empirical studies that provide a critique of this view, but maybe more importantly, provides a detailed analysis of action and interaction in virtual worlds. It considers the organisation of interaction within VR with particular emphasis on the ways in which visual features of the digital domain are seen and shared by participants. The paper describes the ways in which the abilities to share views on the virtual world requires participants to overcome problems associated with the very material character of the VR interfaces. The study is based on the analysis of recordings of a Virtual Reality system that enables participants to talk to one another and see one another's actions within a virtual environment.  相似文献   
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Recently, there has been a shift in the way management scholars view the firm, from traditional models that are based on ideas of opportunism and market failure to newer knowledge‐based theories that argue for a more socialized perspective. One of the key components of these theories is the notion of social capital. Social capital is the set of resources that accrue to an individual or group by virtue of their social connections. As such, it is a resource that is jointly owned. Most recent research adopts a more‐is‐better approach to social capital, suggesting that individuals with larger quantity of ties derive more positive benefits. However in this paper, we argue that using social capital has both benefits and drawbacks for organizations, and that these positive and negative aspects of social capital occur simultaneously. To substantiate our claim, we use data collected from sets of interviews with senior and middle managers in two organizations in the United Kingdom. Our findings indicate that while social capital has many beneficial effects with respect to information access and retrieval, community building, and underlying group norms, there are also a number of less‐beneficial aspects, which are under‐explored in the current empirical literature. Furthermore, we suggest that organizations must develop an understanding of the bridging and bonding elements of social capital, as these are critical for its implementation. Implications of the research findings and future research directions are discussed.  相似文献   
445.
Space weather phenomena have been studied in detail in the peer‐reviewed scientific literature. However, there has arguably been scant analysis of the potential socioeconomic impacts of space weather, despite a growing gray literature from different national studies, of varying degrees of methodological rigor. In this analysis, we therefore provide a general framework for assessing the potential socioeconomic impacts of critical infrastructure failure resulting from geomagnetic disturbances, applying it to the British high‐voltage electricity transmission network. Socioeconomic analysis of this threat has hitherto failed to address the general geophysical risk, asset vulnerability, and the network structure of critical infrastructure systems. We overcome this by using a three‐part method that includes (i) estimating the probability of intense magnetospheric substorms, (ii) exploring the vulnerability of electricity transmission assets to geomagnetically induced currents, and (iii) testing the socioeconomic impacts under different levels of space weather forecasting. This has required a multidisciplinary approach, providing a step toward the standardization of space weather risk assessment. We find that for a Carrington‐sized 1‐in‐100‐year event with no space weather forecasting capability, the gross domestic product loss to the United Kingdom could be as high as £15.9 billion, with this figure dropping to £2.9 billion based on current forecasting capability. However, with existing satellites nearing the end of their life, current forecasting capability will decrease in coming years. Therefore, if no further investment takes place, critical infrastructure will become more vulnerable to space weather. Additional investment could provide enhanced forecasting, reducing the economic loss for a Carrington‐sized 1‐in‐100‐year event to £0.9 billion.  相似文献   
446.
There is a growing literature concerned with the design and implementation of performance measurement systems but few studies of success and failure. This paper describes three phases of research into design and implementation of performance measurement systems involving 16 different businesses. The conclusion from the research is that senior management commitment is a key driver of success, but the paper will also describe the main factors which influence and change this commitment over the life of a performance measurement implementation project.  相似文献   
447.
In recent years, the notion of business models has gained momentum in management research. Scholars have discussed several barriers to changing business models in established firms. However, the national institutions of market economies have not yet been discussed as barriers, even though they can constrain the latitude of action of a firm's management. Based on interviews and a longitudinal content analysis, we analyse the extent to which full service carriers in two countries (British Airways in the UK and Deutsche Lufthansa in Germany) have adopted elements of a low cost model over time. Furthermore, we investigate how this process has been influenced by the differences in each national institutional context. We particularly focus on the role of the rights of employee representatives in changes in business models. Our results show that British Airways has moved its business model more in the direction of low cost carriers than Deutsche Lufthansa, although the business model of the former airline still differs significantly from that of a typical low cost carrier. We identify national institutions that potentially strengthen the position of employee representatives as a factor that can influence, and also act as a barrier to, business model change.  相似文献   
448.
In this paper, we derive the probabilities that four chosen sampling schemes will detect a circular patch of organisms whose location is at some random location in the study area. We also describe simulations which indicate the variation of patch detection probabilities for different realizations of the sampling design. We comment briefly on how probabilities would be affected by multiple and different shaped patches. Our results are a useful guide for practitioners when choosing a design and an appropriate sampling intensity.  相似文献   
449.
Training birth attendants (TBAs) provide essential maternal and infant health care services during delivery and ongoing community care in developing countries. Despite inadequate evidence of relevance and effectiveness of TBA training programmes, there has been a policy shift since the 1990s in that many donor agencies funding TBA training programmes redirected funds to providing skilled attendants during delivery. This study aimed to assess the ways in which a TBA training programme in India has been successful in disseminating evidence-based knowledge on birthing practices. TBAs practicing within 16 villages targeted by training programme initiatives were administered with structured questionnaires. The post training birthing practices of trained (24) and untrained (14) TBAs was compared and birthing practices adopted by women assisted by trained (16) and untrained (9) TBAs was analysed. Positive post training practices were hand washing, use of a clean blade for cutting the cord, immediate breastfeeding and weighing of babies. Nevertheless, the training could be further improved with up to date and evidence-based information and more comprehensive instructions. The findings suggest an integration of local and evidence-based knowledge is needed to improve the training. Raising community awareness of public health measures related to maternal and child health is also recommended.  相似文献   
450.
Social Policy and Disability: Some Theoretical Issues   总被引:2,自引:2,他引:0  
This paper suggests that current ways of thinking about disability are inadequate, both theoretically and as a basis for social policy. The main reason for this is that most writers have remained locked within a 'personal tragedy theory of disability' and have failed to examine the concept of disability critically. Even those writers who have attempted to take disability seriously have failed to move beyond a traditional framework and have subsequently produced sterile accounts. The final section of the paper begins to suggest what a social theory of disability might look like.  相似文献   
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