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11.
As diaspora strategies have become an integral aspect of national economic development strategies, so too have universities begun to formally identify and mobilise diasporic scientists, researchers and scholars in an effort to create global knowledge networks. This paper will identify this new role for diasporic academics. It begins by emphasising the increasing internationalisation of the academic labour market, arguing that an increasing number of researchers have multiple national affiliations and relationships. It shows how diasporic academics have become central to the creation of global knowledge networks. These knowledge networks derive from multiple sources including the institutional ambitions of universities who are seeking to expand their research remits in increasingly resource constrained environments, international and national funding bodies who are increasingly focused on research ‘grand challenges’, and the aspirations of individual researchers for whom global networks are increasingly important to successful careers.  相似文献   
12.
蔡杏辉  叶雯燕 《内陆地震》2010,24(4):375-380
选用福建地震台网"十五"观测系统正式运行以来记录的台湾地区M≥4.0地震资料,以中国地震台网给出的震级为标准震级,进行了震级偏差统计分析,初步得出震级校正值。并分析了震级差异形成原因,为福建地震台网测定台湾地震震级偏差改正提供参考。  相似文献   
13.
Nick Gill  Paula Bialski 《Geoforum》2011,42(2):241-249
This paper contributes to on-going work that seeks to understand the dynamic nature of immigrant social network formation. We explore three propositions, derived from the literature, that might be expected to characterise the ways in which migrant associational ties evolve during and immediately after arrival in their destination country. Evidence is drawn from 42 interviews conducted between January and December 2008 with predominantly Polish migrants to the UK (28) as well as domestic service providers (14). In agreement with the existing literature on immigrant social network formation we find that weak associational ties between migrants are locally dense and rapidly formed. More surprisingly, we also find that the Poles in our sample from lower socio-economic groups tended to rely heavily upon weak associational ties while higher socio-economic group Poles tended to rely on associations made through their employing institutions. This illustrates the importance of socio-economic status in framing co-ethnic migrant network formation. This is significant because we also find that weak associational ties are not unambiguously beneficial to lower socio-economic group migrants who tend to (have to be) more compromising about, and therefore more compromised by, the social ‘friendships’ that result.  相似文献   
14.
应用SVM方法进行沉积微相识别   总被引:15,自引:1,他引:14  
作者针对目前沉积微相中的特征提取问题,提出了应用SVM(支持向量机)方法进行沉积微相识别的方案。该方法不是象传统方法那样首先试图将原输入空间降维(即特征选择变换),而是设法将输入空间升维,以求在高维空间中问题变得线性可分(或接近线性可分)。因为升维后只是改变了内积运算,并没有使算法复杂性随着维数的增加而增加,因此这种方法才是可行的。所以。利用该方法更能胜任实际情况。实际处理表明该方法在小样本情况下  相似文献   
15.
地震速报与互联网络   总被引:1,自引:1,他引:0  
考虑到我国遥测地震台网承担的主要任务,提出了利用互联网络进一步发挥遥测地震台网地震速报作用的构想。其基本点是:在合理规划和统一的信息递约定基础上,利用互联网络技术和设施辅以必要的专用软件,实现遥测台网数据信息的快速通报、汇集、组织与发布,从而更好地为防震减灾特别是大地震应急服务。文中提出宜区分“下式速报”和“非正式地震信息通告”。  相似文献   
16.
Increased interest in the two- and three-dimensional geometries and development of faults and other types of fractures in rock has led to an increasingly bewildering terminology. Here we give definitions for the geometric, topological, kinematic and mechanical relationships between geological faults and other types of fractures, focussing on how they relate to form networks.  相似文献   
17.
Vertical chain collaboration is a strategy for customers’ value creation. However, Dutch fishermen are hardly participating in integrated value chains. While supply chain literature describes factors that contribute to successful chain partnerships, scarce research has been done on the dynamics of the sociocultural context for chain collaboration.In 10 semi-structured interviews, representatives of supply chain parties were asked for their perceptions on chain collaboration, trust, and the role of the local community. The interviews were directed at obtaining so-called ‘tacit’ knowledge, the non-spoken codified truths of social networks. Without generalizing, this research provides benchmarks to monitor how the different domains, laid out in this study, impact chain collaboration: community values, network participation and company competences. An overview is given of socio-economic factors blocking and enhancing chain collaboration at company and community level. Factors such as the strong bonding of family with business in tightly knit networks, a high level of social control, entrepreneurial autonomy, and loyalty as community norm hamper collaboration within the supply chain.Respondents’ discourse demonstrates that cultural codes and identity form the very core of the entrepreneur, driving rather than ‘embedding’ economic behavior. Kinship, religion and peer pressure determine ‘windows on the world’ when engaging in chain collaboration. Consequently, any analysis of economics that does not integrate sociological and psychological methodology is flawed from the outset.  相似文献   
18.
Natural disasters present a multitude of entangled societal challenges beyond the realms and capacities of single actors. Prior research confirms that effective collaboration is of critical significance to address such complex collective action problems. Yet, studies rarely investigate if patterns of collaboration are appropriately aligned (‘fit’) with how different challenges (tasks) are interdependent, or how levels of fit influence collective action performance. We develop a set of hypotheses specifying what constitutes a good fit between collaborative networks and task interdependency. Using unique empirical data from the response to a major wildfire in Sweden, we examine how individual actors select collaboration partners and tasks during the formation the collaborative crisis response network. Then we test if levels of fit in the established network influence performance. We show that patterns of actor and task interdependency influence the formation of collaborative networks and that a good fit seems to be associated with more effective collaboration. Our data even suggest that a good fit is more important for performance than actors’ prior crisis management experience and level of professionalization. Further, we show that actors only partially engage in actor-task configurations conducive to high performance. Our study probes the limitations of simplified accounts of collaborative disaster management by enabling more precise and theoretically informed empirical inquiries regarding the mechanisms that shape the structure and performance of collaborative networks.  相似文献   
19.
探讨了太阳能、振动能和气流能等3种潜在的环境能量及其利用方法。这些方法可有效解决传感器网络节点需要足够持续的能量而传统的电池供能方式不能满足的实际问题。  相似文献   
20.
This paper explores the failures of the quota allocation system in the hake fishery in Walvis Bay, Namibia through an examination of the complex processes that link commodities, labour, production, markets, and knowledge in the industrial setting. The relationships between state regulations and public nature point to a specific engagement in which nature is divided, distributed, and owned, namely through the market driven prospects of transferable quotas. This article examines fishing quota as a set of relations that links the transformation of fish from biological organism to global product and thus weaves science, the state, markets, and social relationships into an entanglement of different forms of capital. In this context, the tension between the quota holder, the value of that quota, and their participation in the industry reflects a complex network of capital mediated through various strategies. Based on ethnographic research in the Namibian trawl sector, this article surfaces these modes of capital in the dynamics of the fishing operations. As such, the fishing industry, the company that holds the fishing rights, the government׳s role in quota allocations, the vessels, gear, and technologies, and the relationships and roles of the crewmembers and skippers׳ knowledge all contribute to a particular formulation of fishing practices. Fisher׳s knowledge in industrial fishing practices becomes a site in which to explore the consequences of ITQs that may also begin to destabilise the neoliberal business model for fisheries in times of crisis.  相似文献   
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