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A platform is a two-sided market. It is an environment established to allow multiple groups such as suppliers and consumers to exchange their views for fair transactions. Platforms evolve through the connection and interaction of participants, and act as ecosystems of coexistence that can provide values and benefits to all participants. Care must be taken in building such a business ecosystem to successfully stabilize the platform model. This research indicates how a business ecosystem can be constructed by analysing quality management and revenue structures – core elements in any platform business model with a distinct group of users on either side. Through 12 case studies using 30 in-depth interviews and 2 focus group interviews, this research suggests the conceptual framework, ‘12 different types of quality management and revenue structure strategies’. These will serve as the conceptual framework from which to build platform business model ecosystems.  相似文献   
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We report a possible rheumatoid arthritis (RA) case found in a Korean Joseon Dynasty (1392–1910) tomb encapsulated by a lime‐soil mixture barrier (LSMB). The tomb is thought to have been constructed during the 1700s AD (1760 AD by carbon dating). In our anthropological examination, joint destruction, erosion or fusion (signs of polyarthritis) were identified mainly in the peripheral skeleton. Especially in both sides of the wrist bones, severe destruction/joint fusion possibly caused by polyarthritis was observed. A similar polyarthritis pattern also was seen in the right foot bones, even though we failed to confirm this symmetry due to the missing left foot bones. Despite these findings, signs suggestive of polyarthritis are very rarely seen in axial bones, even though bony fusions are found in the atlanto‐occipital joint or thoracic vertebrae (TV) 9–10. By the osteological signs observed in this case, the individual, a female, might have been suffering from a very late stage of RA and died in her 40s, even though other forms of chronic arthritis could not be ruled out completely. Though the current case could not provide evidence to decisively settle the debates on the antiquity of RA, our report could be a stepping stone for forthcoming studies on RA cases found in East Asian countries. Copyright © 2009 John Wiley & Sons, Ltd.  相似文献   
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Abstract: This article calls for the recognition of a subsector of the informal economy, which is conceptualized as the “survival sector”. Based on empirical evidence from Antananarivo, Madagascar it is suggested that beggars, street children and other marginalized people constitute a separate, non‐productive subsector of the economy, which is also distinguishable from formal and informal economies because of other aspects, such as the character of its social and economic networks, survival strategies, patterns of social and physical mobility, and the social and public spaces occupied. Given the vast number of marginalized people in the world, it seems useful to consider a survival sector of its own that is, despite interlinkages, fundamentally different from other components of the informal economy.  相似文献   
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This article explores the reactions of civil authorities and Lutheran clergy to Mormon activity in Finland between the years 1875 and 1889. At this time, Mormonism was introduced to the country by missionaries who were mainly Swedish natives and who proselytized in the Swedish-speaking coastal areas. Although the impact was numerically small in terms of conversions, the Mormon presence was regarded by the civil authorities and the Lutheran clergy as sufficiently serious to warrant action. Civil authorities responded for example by confiscating Mormon literature and issuing warnings and threats of arrest to missionaries. Clergy, acting from a religious perspective and seeking to impede the spread of new religious movements that they regarded as spiritually harmful, interrupted preaching meetings and warned their parishioners against the perceived heresy. Enforced legislation and strong societal opposition was an important reason for the meagre harvest of Mormon converts in 19th-century Finland as opposed to the other Nordic countries.  相似文献   
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This paper examines the impact of information technology on urban spatial structure in the Chicago region. Urban scientists are challenged to understand in what ways information technology has influenced the distribution of urban economic activities: concentration or dispersion. Using data collected in the Chicago region, orientation of establishments toward the center is tested to separate the impact of locational features of centers from the impact of information technology. The result reveals that information technology has attraction as well as spillover effect on urban spatial structure and thus concentration rather than dispersion is dominant at a local scale in the Chicago region. It was found, however, that center‐orientedness varies depending on the sector.  相似文献   
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This article investigates the year leading up to the relocation of Botezari village from Tadoba‐Andhari Tiger Reserve, India, and suggests that it does not accord with the conventional scholarly theory of the powerless oustee. The village's pre‐relocation phase was characterized by a genuine local openness to displacement; a socially‐aware displacement authority; lively NGO and press presence; and a relatively assertive and astute village community. This facilitated constructive dialogue, culminating in meaningful concessions and a perceptible power structure shift, which, I argue, indicates that the received wisdom of inevitable oustee powerlessness may in some instances require qualification, at least in the Indian context. There, the last decade has witnessed some broad changes in regimes of governance and civil society, and a growth of cultures of opposition and struggle from ‘below’. Where such wider structural changes come together with other more locally‐specific favourable factors, cases such as the one described here may materialize, in which the acute powerlessness of the displaced should not be assumed.  相似文献   
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