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31.
Over the last two decades information technology (IT) outsourcing has grown dramatically, and has emerged as a strategic choice for firms searching for ways to control their costs and maintain a competitive edge. The mechanisms driving its growth are not fully understood though. In this research, we employ an approach that focuses on geographic, temporal, and industrial proximity in a mechanism that identifies the process underlying the diffusion of IT outsourcing across firms within the U.S from 2000 to 2010. We focus on the role that firm location plays in the diffusion process, and use space-time clustering techniques from the epidemiology literature to understand the diffusion process. We identify 38 space-time clusters based on IT outsourcing announcement data and the locations of firm headquarters among U.S.-based firms. When supplemented with additional information, such as type of services outsourced, the metropolitan area of the headquarters, and related industry information; the results offer insights into various types of diffusion processes that have been identified in the literature but have not been documented to date in the empirical manner that we have been able to do. 相似文献
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《Geoforum》2015
Apple varieties boom and bust as the vogue for new flavors cycle through the market. Dwarfing rootstocks, an old but freshly blossoming orchard technology, allows growers to intervene in trees in new ways and keep up with shifts in consumer demand. They cultivate customization in apple orchards and facilitate emerging neoliberal trends in food systems. However, the rootstocks do more than entrench actors further into the whims of the market—they also shape economic agency in ways that have multiple expressions. Drawing on work on actor-networks and assemblages, this paper considers how technologies play a role in contemporary food politics through their material characteristics and the performances they inspire. Using apple production in the American Midwest as a case study, this paper discusses the ways that rootstock technologies both reproduce current power structures and conventional organizational forms in food, while providing a platform for an alternative type of assemblage. In doing so, it contributes theoretically to conversations about the role of materials in economic politics and substantively to an optimistic vision of the future of food. 相似文献
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Abstract Technology development and transfer is an important feature of both the United Nations Framework Convention on Climate Change (UNFCCC) and its Kyoto Protocol. Although the Clean Development Mechanism (CDM) does not have an explicit technology transfer mandate, it may contribute to technology transfer by financing emission reduction projects using technologies currently not available in the host countries. This article analyses the claims about technology transfer made by CDM project participants in their project design documents. Roughly one-third of all CDM projects, accounting for almost two-thirds of the annual emission reductions, involve technology transfer. Technology transfer varies widely across project types and is more common for larger projects and projects with foreign participants. Equipment transfer is more common for larger projects, while smaller projects involve transfers of both equipment and knowledge or of knowledge alone. Technology transfer does not appear to be closely related to country size or per-capita GDP, but a host country can influence the extent of technology transfer involved in its CDM projects. 相似文献
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关于新升格本科院校地图学教学改革的几点思考 总被引:1,自引:0,他引:1
作者通过几年来对地图学课程的的教学实践,以及与兄弟院校的交流发现:新升格本科院校地图学教学过程中普遍存在教学手段落后、绘图技术不够先进、创新思维滞后,这已经成为普遍现象,作者认为新升格本科院校的地图学教学改革势在必行。 相似文献
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文章以MATLAB技术为平台,以西藏自治区雄村铜矿床为实例,详细讨论了如何开发以克立格理论为基础的固体资源储量估算系统,其中包括模块:数据预处理、变异函数分析、克立格估值、储量估算、地质可靠度评价等.论文使用该系统对西藏自治区雄村铜矿床进行储量预测,得出结果数据表格;并对原生矿体、次生矿体、氧化矿体、总矿体、矿体的自然形态以及在工业品位规范下的矿体形态进行拟合.通过与专业储量估算软件Minesjght的估算结果对比,证明了本系统的可靠性和实用性. 相似文献
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城乡结合部土地利用变化的信息提取技术与分析--以无锡市为例 总被引:11,自引:0,他引:11
作为两种截然不同的生态系统过渡区,城乡结合部是土地利用/土地覆被变化最激烈地区之一,城乡结合部的土地利用情况日益受到人们重视.本文以无锡市为例,利用3S技术提取城乡结合部的范围和土地利用/土地覆被状况信息,提出了确定无锡市城乡结合部范围边界的半自动提取模型和结合部土地利用类型半自动提取模型,并对无锡市城乡结合部土地利用结构及其变化进行分析,揭示了无锡市城乡结合部土地利用/土地覆被变化特征,据此提出城乡结合部土地合理利用的建议. 相似文献
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